Complete Guide to Dust Collection Compliance: Meeting Regulatory Requirements and Ensuring Workplace Safety

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Dust collection regulation topic image

Meeting Regulatory Requirements and Ensuring Workplace Safety

Contents

Introduction: The Importance of Dust Collection Compliance

Occupational Safety and Health Administration (OSHA) Regulations

OSHA’s Combustible Dust National Emphasis Program (NEP)

Understanding Combustible Dust Hazards

National Fire Protection Association (NFPA) Standards

Dust Hazard Analysis (DHA): Identifying and Mitigating Risks

Designing Dust Collection Systems for Compliance

Emissions Monitoring and Reporting Requirements

Compliance Audits and Inspections

Training and Employee Awareness

Best Practices for Maintenance and Housekeeping

Industry-Specific Compliance Considerations

Introduction: The Importance of Dust Collection Compliance

Maintaining a safe and healthy workplace environment is a top priority for any business, and for industrial facilities, effective dust collection is a critical component. Not only does proper dust collection help protect workers from respiratory hazards and potential dust explosions, it also ensures compliance with regulatory requirements.

The Occupational Safety and Health Administration (OSHA), the Mine Safety and Health Administration (MSHA) and other government organizations set standards and guidelines to safeguard employees and minimize the risks associated with airborne particulates.

In this guide, we will explore the key aspects of dust collection compliance, covering everything from OSHA regulations to combustible dust hazards, design considerations, emissions monitoring, and more. By understanding and adhering to these essential requirements, businesses can create a safer working environment, mitigate potential hazards, and maintain regulatory compliance.

Occupational Safety and Health Administration (OSHA) Regulations

OSHA regulations apply to most private sector employers and their workers. Formed as a result of the Occupational Safety and Health Act of 1970, OSHA’s mandate is to ensure safe and healthy working conditions. If you are located in the US, it is likely that your facility is subject to OSHA standards.

OSHA provides guidance documents, fact sheets, and publications to help you understand and comply with their regulations. You can find these by searching the OSHA website. While you should be familiar with all OSHA requirements (consult your site EH&S expert), here are some key OSHA standards and regulations that are relevant for dust collection and control:

  1. General Duty Clause: The General Duty Clause (Section 5(a)(1) of the Occupational Safety and Health Act) requires employers to provide a workplace free from recognized hazards that can cause serious harm or death. This clause serves as a broad requirement for employers to address dust hazards and implement effective dust control measures.
  2. Respiratory Protection: OSHA’s Respiratory Protection Standard (29 CFR 1910.134) establishes requirements for the use of respiratory protection when employees are exposed to dust that exceeds permissible exposure limits. It includes guidelines for selecting, fitting, and training employees on the use of respiratory protection equipment.
  3. Hazard Communication: OSHA’s Hazard Communication Standard (29 CFR 1910.1200) requires employers to properly identify and communicate the hazards associated with dust and ensure that employees are trained on the safe handling, storage, and disposal of hazardous substances.
  4. Walking-Working Surfaces: OSHA’s Walking-Working Surfaces Standard (29 CFR 1910 Subpart D) includes requirements for maintaining clean and safe working surfaces, free from accumulations of dust or debris that could create slip and fall hazards.
  5. Electrical Safety: OSHA’s Electrical Standard (29 CFR 1910 Subpart S) includes requirements for electrical equipment used in areas where combustible dust may be present. It addresses measures to prevent ignition sources and the potential for electrical hazards in dust collection systems.
  6. Machine Guarding: OSHA’s Machine Guarding Standard (29 CFR 1910.212) establishes requirements for safeguarding machinery to protect workers from moving parts, including dust collection equipment. It ensures that appropriate guards are in place to prevent employee contact with hazardous machinery.
  7. Combustible Dust: Although OSHA does not have a specific standard solely dedicated to combustible dust, they have issued guidelines and directives related to combustible dust hazards. OSHA’s Combustible Dust NEP (National Emphasis Program) provides guidance for inspecting facilities that handle combustible dust, emphasizing compliance with existing standards and the identification of potential hazards. See below for more information on combustible dust requirements.

It is important to note that OSHA requirements may vary depending on specific industry and location. Consult your relevant OSHA standard and your local EH&S professional to ensure compliance with all applicable regulations.

OSHA’s Combustible Dust National Emphasis Program (NEP)

OSHA’s NEP program is a directive aimed at addressing the unique hazards associated with combustible dust in various industries. The NEP provides guidance to OSHA compliance officers regarding the inspection, enforcement, and compliance activities related to facilities that handle combustible dust materials. The program aims to increase awareness, promote compliance with existing OSHA standards, and reduce the risk of dust-related incidents including fires and explosions.

The most critical Requirements of the NEP include:

  1. Inspections: OSHA compliance officers conduct inspections of facilities that handle combustible dust. These inspections focus on identifying potential dust hazards, evaluating compliance with applicable standards, and determining the effectiveness of dust control measures.
  2. Employee Training: Employers are required to provide adequate training to employees regarding the hazards of combustible dust, safe work practices, and emergency response procedures. Training should cover topics such as dust control measures, housekeeping practices, proper equipment operation, and the use of personal protective equipment (PPE).
  3. Hazard Assessment: Facilities must conduct a thorough hazard assessment to identify potential sources of combustible dust, assess the severity of the hazard, and implement appropriate control measures. This assessment should consider factors such as dust generation, accumulation, dispersion, and ignition sources.
  4. Housekeeping Practices: Proper housekeeping practices play a critical role in controlling combustible dust hazards. Facilities must establish regular cleaning procedures to minimize the accumulation of dust on surfaces, equipment, and ventilation systems. Vacuuming, sweeping, and other methods should be employed to prevent excessive dust buildup.
  5. Ignition Source Control: Facilities must implement measures to control potential ignition sources that could ignite combustible dust. This includes proper electrical equipment selection and installation, grounding and bonding procedures, and isolation of ignition sources from dust-handling areas.
  6. Engineering Controls: Employers are required to assess and implement appropriate engineering controls to minimize the risk of dust explosions. This may include the installation of explosion venting, deflagration suppression systems, spark detection systems, and deflagration venting ductwork.
  7. Written Programs: Facilities must develop and maintain written programs that address combustible dust hazards, including procedures for dust control, equipment maintenance, inspections, employee training, incident reporting, and emergency response.

    Understanding Combustible Dust Hazards

    Combustible dust hazards pose a significant risk where fine particles of solid materials can become suspended in the air and create a potentially explosive atmosphere. Understanding the nature of these hazards is crucial for maintaining a safe working environment and implementing effective control measures. Combustible dust can arise from a wide range of materials, including organic substances like wood, grain, and food products, as well as inorganic materials such as metals, chemicals, and pharmaceuticals.

    OSHA dust combustion pentagon
    OSHA’s Dust Combustion Pentagon

    The hazard potential of combustible dust arises when several factors, commonly known as the Dust Explosion Pentagon, come together. These factors include the presence of:

    1. Combustible dust particles
    2. An ignition source
    3. Oxygen in the air
    4. Dispersion of dust particles
    5. Confinement of the dust cloud.

    When these elements combine in the right proportions, they create a potentially explosive environment. Ignition sources can range from sparks, open flames, hot surfaces, electrical equipment, friction, or static electricity.

    To mitigate combustible dust hazards, several preventive measures should be implemented:

    • Effective housekeeping practices are essential to minimize dust accumulation on surfaces, equipment, and ventilation systems, as excessive dust buildup increases the risk of ignition. Regular cleaning, including vacuuming and sweeping with appropriate equipment, can help control dust levels and prevent potential incidents.
    • Proper ventilation systems should be installed to control dust dispersion and maintain a safe working environment.
    • Potential ignition sources, such as electrical equipment, must be properly designed, installed, and maintained to minimize the risk of igniting combustible dust.
    • Explosion protection measures, such as explosion venting or suppression systems, can help mitigate the severity of explosions if they do occur.

    Understanding combustible dust hazards is essential for identifying potential risks and implementing appropriate control measures. By conducting thorough dust hazard assessments (see below), implementing effective housekeeping practices, controlling ignition sources, and employing engineering controls, employers can significantly reduce the risk of dust-related incidents as well as fines and violations,  and ensure the safety of their workers and facilities.

    National Fire Protection Association (NFPA) Standards

    The NFPA (link to NFPA site) is a non-profit organization dedicated to eliminating death, injury, property, and economic loss due to fire, electrical, and related hazards. You should familiarize yourself with all requirements applicable to your site, but here are the most commonly referenced NFPA standards related to dust collection and control:

    1. NFPA 654: Standard for the Prevention of Fire and Dust Explosions from the Manufacturing, Processing, and Handling of Combustible Particulate Solids: NFPA 654 provides guidelines for preventing fire and dust explosions in facilities that handle combustible particulate solids. It covers various aspects of dust control, including hazard identification, assessment, and mitigation measures. The standard emphasizes the importance of conducting a Dust Hazard Analysis (DHA) to identify potential hazards, implementing effective housekeeping practices, and using appropriate explosion protection systems.
    2. NFPA 68: Standard on Explosion Protection by Deflagration Venting: NFPA 68 focuses on the design, installation, operation, and maintenance of deflagration venting systems. It provides guidelines for venting combustible dust explosions to minimize damage and protect personnel and equipment. The standard outlines requirements for calculating vent areas, selecting venting devices, and establishing proper vent duct designs.
    3. NFPA 69: Standard on Explosion Prevention Systems: NFPA 69 addresses explosion prevention systems used to protect industrial processes and equipment. It covers various protection methods, including deflagration venting, flameless venting, explosion suppression, and explosion isolation. The standard provides requirements for designing and installing these systems to mitigate the risk of dust explosions.
    4. NFPA 70: National Electrical Code (NEC): While not specific to dust collection, the NEC provides guidelines for electrical installations, including those in areas where combustible dust may be present. It covers proper electrical equipment selection, wiring methods, grounding, and bonding to prevent ignition sources in dust-handling environments.
    5. NFPA 91: Standard for Exhaust Systems for Air Conveying of Vapors, Gases, Mists, and Noncombustible Particulate Solids: NFPA 91 focuses on exhaust systems used to convey air, vapors, gases, mists, and noncombustible particulate solids. While primarily addressing general ventilation systems, it includes provisions for dust collection systems, including requirements for ductwork, air velocity, explosion venting, and spark detection systems.
    6. NFPA 664: Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities: This standard is applicable to wood shops and wood processing facilities.

    These are just a few of the many NFPA standards related to dust collection and control. Consult the specific NFPA standards applicable to your industry and operations to ensure compliance with best practices and industry guidelines for preventing dust-related hazards.

    Contact us to consult with a baghouse expert and receive guidance on how to comply with NFPA requirements.

    Dust Hazard Analysis (DHA): Identifying and Mitigating Risks

    NFPA 652 (Standard on the Fundamentals of Combustible Dust) provides details on conducting a DHA in accordance with the NFPA requirements. However, hear is a summary of the process:

    1. Scope and Team Formation: Determine the scope of the DHA, identifying the areas, processes, and materials to be included in the analysis. Form a multidisciplinary team that includes individuals with expertise in engineering, safety, operations, and maintenance.
    2. Hazard Identification: Identify potential sources of combustible dust and assess the likelihood and severity of a dust explosion or fire. This includes reviewing material safety data sheets (MSDS), conducting facility walkthroughs, and analyzing historical incident data.
    3. Dust Hazard Assessment: Evaluate the characteristics of the dust, such as particle size, particle shape, combustibility, and explosibility. Consider the dust’s ignition sensitivity, explosion severity, and any potential secondary hazards. Assess the effectiveness of existing control measures and housekeeping practices.
    4. Risk Evaluation: Determine the level of risk associated with identified hazards. Evaluate the likelihood and potential consequences of a dust-related incident, considering factors such as ignition sources, dust concentrations, ventilation systems, and equipment design.
    5. Control Measures and Recommendations: Develop recommendations to mitigate identified hazards and reduce the risk of dust explosions or fires. This may include implementing engineering controls, such as improved ventilation or explosion protection systems, enhancing housekeeping practices, modifying equipment or processes, or providing training and personal protective equipment (PPE) for employees.
    6. Documentation and Review: Document the findings, recommendations, and actions taken during the DHA process. Maintain clear records of the assessment, including the scope, team members, hazard identification, risk evaluation, and control measures. Regularly review and update the DHA to reflect any changes in processes, materials, or regulations.
    7. Training and Communication: Ensure that employees and relevant stakeholders are trained on the hazards associated with combustible dust, the control measures in place, and the actions to take in the event of an incident. Promote a culture of safety and provide ongoing communication and education regarding dust hazards and prevention strategies.

      Designing Dust Collection Systems for Compliance

      It is critical that your dust collector system is designed in accordance with all applicable regulations. We strongly recommend you consult with a dust collection expert before and during your system design and installation to avoid costly rework, mitigation, or safety and health incidents at your site. Here are some general considerations when specifying system requirements or designing a dust collection system:

      1. Identify Applicable Regulations: Understand the specific regulations and standards that apply to your industry and location. This may include Occupational Safety and Health Administration (OSHA) regulations, National Fire Protection Association (NFPA) standards, local building codes, and environmental regulations.
      2. Conduct a Dust Hazard Analysis (DHA): Perform a comprehensive analysis of the dust hazards present in your facility. Identify the types of dust generated, their explosibility characteristics, and potential ignition sources. Use the DHA findings to inform the design of the dust collection system and control measures.
      3. Determine Airflow and Capture Velocity: Calculate the required airflow and capture velocity based on the dust generation rate, size and weight of dust particles, and the proximity of dust sources to the collection hood. Ensure that the system is designed to effectively capture and contain the dust at the source.
      4. Select Proper Collection Equipment: Choose appropriate dust collection equipment that meets regulatory requirements and is suitable for the specific application. Consider factors such as filtration efficiency, dust handling capacity, explosion protection features, and compatibility with the type of dust being collected.
      5. Ensure Adequate Ventilation: Design the ventilation system to maintain a safe and healthy working environment. Provide sufficient air exchange rates, taking into account the size of the facility, the number of dust sources, and the type of operations being conducted. Ventilation should effectively control dust dispersion and maintain breathable air quality.
      6. Implement Explosion Protection Measures: If handling combustible dust, incorporate explosion protection measures as required by regulations. This may include explosion vents, flameless venting, explosion and fire suppression, or deflagration containment systems. Ensure that the design of the dust collection system integrates these measures effectively.
      7. Consider Noise Control: Dust collection systems can generate significant noise levels. Take measures to minimize noise through proper equipment selection, ductwork design, and the use of noise-reducing features like silencers or sound dampening materials.
      8. Provide Easy Maintenance and Access: Design the system with accessibility in mind, allowing for easy maintenance, inspection, and cleaning of components. Incorporate features such as access doors, cleanout ports, and quick-release mechanisms for filters or collection containers.
      9. Labeling and Signage: Ensure that the dust collection system is properly labeled and includes appropriate warning signs to indicate potential hazards, emergency shutdown procedures, and any necessary precautions for personnel.
      10. Documentation and Record Keeping: Maintain thorough documentation of the dust collection system design, including equipment specifications, airflow calculations, hazard analysis reports, maintenance records, and inspection logs. Regularly review and update documentation to ensure compliance with changing regulations.

      It is crucial to consult with industry experts, compliance professionals, and relevant regulatory agencies to ensure that your dust collection system design meets all applicable regulatory requirements – YOU are responsible for ensuring that your site is in compliance.

      Emissions Monitoring and Reporting Requirements

      Emissions requirements are another topic that many industrial professionals need to understand and comply with to avoid fines, mitigation actions, and potential health issues.

      1. Understand Applicable Regulations: Familiarize yourself with the specific regulations and reporting requirements related to dust emissions monitoring in your industry and location. This may include local, state, and federal environmental regulations, air quality standards, and permit conditions. Also review your equipment permits to understand what requirements each piece of equipment is subject to.
      2. Determine Monitoring Frequency: Determine the frequency at which dust emissions monitoring should be conducted based on regulatory requirements and any specific conditions outlined in permits or compliance agreements. This may include continuous monitoring, periodic sampling, or a combination of both.
      3. Select Monitoring Methods: Choose appropriate monitoring methods that are approved and recognized by regulatory authorities. Common methods include stack sampling, opacity monitoring, gravimetric sampling, and real-time particulate matter monitoring. Ensure that the selected methods are suitable for the type of dust being emitted and provide accurate and reliable data.
      4. Establish Monitoring Locations: Determine the appropriate locations for dust emissions monitoring. This may involve identifying critical emission points, such as stacks, vents, or process equipment, where emissions are expected to be generated. Consider factors such as representative sampling, accessibility, and compliance with monitoring requirements.
      5. Calibrate and Maintain Monitoring Equipment: Regularly calibrate and maintain the monitoring equipment to ensure accurate and reliable measurements. Follow manufacturer recommendations and any specific calibration protocols specified by regulatory authorities. Keep detailed records of calibration dates, results, and maintenance activities.
      6. Record and Report Monitoring Data: Maintain comprehensive records of all monitoring data, including measurement dates, locations, sampling methods, and results. Ensure that the records are accurate, well-documented, and readily accessible. Prepare and submit reports in accordance with regulatory requirements, including specified timeframes and data formats.
      7. Compliance with Emission Limits: Regularly compare the monitoring data with the applicable emission limits or standards established by regulatory authorities. Take prompt action if emissions exceed permitted levels, and implement corrective measures to bring emissions back into compliance.
      8. Stay Updated on Changes in Regulations: Stay informed about any changes or updates to regulations related to dust emissions monitoring and reporting. Monitor updates from regulatory agencies and industry organizations to ensure ongoing compliance with the latest requirements.
      9. Retain Records: Retain monitoring records, reports, and documentation for the specified duration as required by regulations. This may vary depending on the jurisdiction, but it is generally advisable to keep records for a minimum of several years to demonstrate compliance and facilitate future audits or inspections.
      10. Seek Professional Guidance: If needed, consult with a professional to ensure compliance with regulations, proper sampling techniques, and accurate reporting.

      Compliance Audits and Inspections

      Compliance audits and inspections are important processes to ensure that dust collection systems meet regulatory requirements and operate in a safe and environmentally responsible manner. Here is a summary of compliance audits and inspections that dust collection systems could be subject to:

      1. Regulatory Compliance Audits: Regulatory agencies such as the OSHA and MSHA may conduct compliance audits to assess whether the dust collection system meets the relevant regulatory requirements. These audits may involve a review of permits, records, operational procedures, maintenance logs, and emissions monitoring data.
      2. Safety Inspections: Safety inspections focus on identifying potential hazards and ensuring that appropriate safety measures are in place. Inspectors may check for proper installation and maintenance of equipment, compliance with electrical and fire safety codes, adherence to lockout/tagout procedures, and the presence of proper safety signage and personal protective equipment. These audits may be conducted by your site EH&S team or by external authorities (your local fire marshal, etc.)
      3. Emissions Testing: Emissions testing is performed to measure the level of pollutants emitted by the dust collection system. This may involve the use of sampling equipment to collect dust samples, which are then analyzed to determine the concentration of specific contaminants. The results are compared against regulatory emission limits to assess compliance. The permits for your equipment may specify your emissions testing requirements.
      4. Operational Audits: Operational audits evaluate the performance and efficiency of the dust collection system. They may include assessing the system’s airflow, pressure drop, filter cleaning efficiency, and energy consumption. These audits aim to identify any operational issues or opportunities for improvement. com conducts thorough audits of your dust collection system equipment.
      5. Internal Audits: In addition to external audits and inspections, organizations may conduct internal audits to assess their own compliance and identify areas for improvement. These audits can be valuable for ensuring that all aspects of the dust collection system are operating effectively and in compliance with internal policies and procedures.

      Training and Employee Awareness

      Training is a critical component of operating dust collection systems, both to ensure your systems operate efficiently and for ensuring you stay compliant to all environmental, health, and safety requirements. Training should be conducted regularly for your maintenance, operations, engineering, EH&S, and management staff that are involved with dust collection.

      Baghouse.com offers a comprehensive training program geared toward educating your entire staff on dust collection principals including system design and selection, operation, maintenance and troubleshooting, special considerations for combustible dust, and other relevant topics. We offer this training both on-site and remotely (via Zoom, etc.) and it can be tailored to your specific site requirements.

      Learn more about the training offered by Baghouse.com.

      Best Practices for Maintenance and Housekeeping

      Specific maintenance and housekeeping practices may vary depending on your situation (if you handle combustible or toxic dust, etc.) but there are some general best practices to ensure your site stays clean and safe when dust is present:

      1. Regular Equipment Inspections: Conduct regular inspections of your dust collection systems to identify any signs of wear, damage, or malfunction. This includes inspecting filters for leaks, ductwork, fans, valves, and other components. Address any issues promptly to maintain system efficiency and prevent potential safety hazards including dust emissions or dust buildup in your system.
      2. Scheduled Maintenance: Establish a daily, weekly, and monthly preventative maintenance schedule for routine tasks such as filter replacement, replacement of pulse valve diaphragms, door seals, fan belts, and other items that wear out. Adhere to manufacturer guidelines and recommendations for maintenance activities to maximize the system’s effectiveness. Contact Baghouse.com for a useful maintenance checklist that you can tailor for your site.
      3. Cleaning Procedures: Develop and implement proper cleaning procedures for the dust collection system and surrounding areas. This includes regular cleaning of ductwork, hoods, and equipment surfaces to prevent dust accumulation and potential hazards. Use approved cleaning methods and equipment that minimize the release of dust into the environment.
      4. Training and Education: Provide comprehensive training to personnel involved in operating and maintaining the dust collection system (see above). Ensure they understand the importance of compliance with environmental, health, and safety regulations, as well as the proper procedures for maintenance, cleaning, and safe handling of materials.
      5. Housekeeping Practices: Implement effective housekeeping practices to minimize the generation and accumulation of dust. This includes regular sweeping, vacuuming, and dampening surfaces to prevent dust from becoming airborne. Dispose of collected dust properly according to applicable regulations. Generally, visible dust in the air or on surfaces in your facility is a sign that housekeeping is needed, or that your system requires inspection and maintenance.
      6. Hazardous Material Handling: If your dust contains hazardous materials, ensure proper handling, storage, and disposal procedures are followed in compliance with relevant regulations. Label containers appropriately, store hazardous materials in designated areas, and work with certified disposal contractors as necessary.
      7. Record-Keeping: Maintain accurate records of maintenance activities, inspections, cleaning schedules, and any incidents or corrective actions taken. These records demonstrate compliance efforts and can be useful during audits or inspections.
      8. Employee Engagement: Foster a culture of environmental, health, and safety awareness among employees. Encourage reporting of any concerns, near misses, or incidents related to the dust collection system. Regularly communicate updates, provide training refreshers, and involve employees in safety committees or initiatives.

      Industry-Specific Compliance Considerations

      Every industry and site has its own particular considerations for dust collection and control. Here are a few points to consider for some specific industries:

      1. Manufacturing and Industrial Facilities: These facilities often generate dust from processes such as metalworking, woodworking, or chemical manufacturing. Compliance considerations may include proper containment of dust, selection of appropriate dust collection equipment, compliance with hazardous material handling and disposal regulations, and adherence to specific industry standards or guidelines.
      2. Construction Sites: Construction sites can generate dust from activities such as concrete cutting, grinding, and demolition. Compliance considerations may include implementing dust control measures such as wetting down surfaces, using dust collection systems for equipment, proper storage and handling of construction materials, and compliance with local air quality regulations.
      3. Pharmaceutical and Food Processing Industries: These industries require strict adherence to cleanliness and hygiene standards. Compliance considerations may include utilizing dust collection systems designed for sanitary applications, ensuring the use of appropriate filter materials to prevent cross-contamination, compliance with Good Manufacturing Practices (GMP), and adherence to industry-specific regulations and guidelines.
      4. Mining and Quarrying Operations: Mining and quarrying activities often generate significant amounts of dust. Compliance considerations may include implementing effective dust control measures such as water spraying or dust suppression systems, proper ventilation and exhaust systems, regular monitoring of air quality, and compliance with mining-specific regulations and guidelines. MSHA has specific requirements aimed at preventing and controlling exposure to hazardous levels of respirable dust that cause lung disease, including coal workers’ pneumoconiosis (CWP) or silicosis. MSHA regulates dust collection systems and has a process for equipment approval for use in mining operations, and conduct regular inspections of mining operations.
      5. Energy and Power Generation: Power plants, including coal-fired facilities, face specific compliance considerations for dust collection and control. Compliance measures may include the use of high-efficiency particulate air (HEPA) filters, compliance with emission limits for particulate matter, proper handling and disposal of fly ash or other byproducts, and adherence to industry-specific regulations and guidelines.

      There are multiple government agencies (federal, state, and local) that likely have regulations that apply to your site and your dust collection systems. It is critical that you understand and comply with all regulations to avoid costly fines, mitigation actions, and most importantly, environmental or safety incidents caused by a failure to comply. Baghouse.com has many years of experience working with customers in multiple industries, and provides consulting for customers to help ensure your systems are compliant.

      CONTACT US TODAY TO DISCUSS YOUR SYSTEM

      For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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      How Often Should Baghouse Filters Be Changed?

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      How Often Should Baghouse Filters be Changed?

      One of the most common questions we hear is, “How often do I need to change my baghouse filters?” The most accurate answer is – it depends. However, as that is not the answer you were hoping for, here is a general rule to help you estimate filter life:

      In general, baghouse filters have a useful life of 1-3 years.

      This is an average range for most filters in the most common applications where the dust load is not extremely heavy, and the gas stream and dust is not hot, abrasive, wet, acidic, etc. All of these factors will affect filter life.

      A properly sized dust collector with plenty of filter area, collecting room temperature dust, running one shift, properly maintained, may only need the filters changed every three years. An undersized collector, run continuously for 24 hours per day, collecting an abrasive dust (silica dust, metal shavings, etc.) at elevated temperatures will certainly require filter changes more often, perhaps as often as monthly in some cases.

      Why Do Baghouse Filters Need to Be Replaced?

      The most common mechanisms for filter failure are:

      Broken Baghouse Filter

      This bag filter has a hole due to wear.

      • Blinded filters that no longer filter dust
      • Sparks/embers that burn small holes in the filter material.
      • Wear damage caused by the filters rubbing against each other or the metal cages (improperly maintained cages).
      • Temperature spikes that cause the baghouse temperature to exceed the filter design temperature.
      • Chemical attack on the filters.
      • Improperly installed filters.

      Any of these reasons for failure result in leakage – dust making it past your filters and into the clean air stream. If the filters fail, dust will be released into the atmosphere or back into your building, depending on your system. This is obviously bad, as it means the dust collector is no longer doing its job.

      How do I Know When my Filters Need to be Replaced?

      There are a few ways to evaluate your filter condition, and some indicators that your filters need to be changed:

      1. Visual Inspection: Take a look at your filters and look for holes, rips, or signs of dust leakage. Look inside the clean air plenum in your dust collector – if there is any dust present, it is possible that one or more filters are leaking and require replacement.
      Baghosue UV Leak Test

      UV Leak Test Identifying a Leaking Filter

      1. Visible Emissions: If your filters are working properly dust will be filtered out and only clean air will be visible coming out of the fan exhaust. If there is dust visible, you have a leak.
      2. Differential Pressure: Over time as your filters accumulate dust, your differential pressure gauge will creep upward. When your pulse jet, reverse air, or shaker system activates to clean your system, you should see the DP go down. If your filters are blinded the DP will remain high, meaning the filter cleaning system is no longer effectively clearing dust from your filters – it is time to change your filters. As a general rule, if your DP gauge reads greater than 6 in. WG your filters may be blinded. (Click here to learn more about pressure gauges).
      3. Leak Sensors: Leak sensors are available to detect broken filter bags downstream of the dust collector. A leak test can be used to identify a specific filter that is leaking. (Click here to learn more about broken bag detectors).

       

      Have More Filter Questions? Contact Us to Speak to One of Our Baghouse Experts.

       

      For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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      How Does a Magnahelic Gauge Measure Baghouse Performance?

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      A Primer on Pressure Gauges for Dust Collection Systems

      Contents

      How Differential Pressure Gauges are Used in Dust Collection Systems
      How to Use a Magnahelic (Differential Pressure) Gauge to Measure Dust Collector Performance
           What is the Expected Range of Static Pressure Drop Across a Baghouse?
           Can Static Pressure Drop be “Too Low”?
      How to Select a Differential Pressure Gauge
      Integrated Differential Pressure Gauges
      Magnahelic vs Photohelic Gauges
      How are Flow Sensors Used to Measure Dust Collector Performance?
      Pressure Gauge Maintenance
      Purchasing a Differential Pressure Gauge

      How Differential Pressure Gauges are Used in Dust Collection Systems

       

      Magnahelic Gauge

      Standard 0-15 in WG Magnahelic Differential Pressure Gauge

       

      When inspecting or evaluating a dust collector (baghouse, cartridge collector, etc.) or dust collection system, you will see various gauges installed at different locations in the system. These sensors are in place to help you monitor and control the performance of the system. The most common gauges you will find are:

      • Differential pressure gauge: Often referred to as a Magnahelic Gauge (Magnahelic is a specific brand name, but many people refer to all DP gauges as ‘Magnahelics’), a differential pressure gauge is typically installed on or adjacent to the dust collector. It measures pressure the pressure drop across the filters in your dust collector. The gauge consists of two pressure ports that are connected to either side of the filters. As dust accumulates on the filters, the pressure drop across them increases. The differential pressure gauge measures this pressure drop and provides a reading that indicates when the filters need to be cleaned or replaced. This helps to maintain the efficiency of the dust collector and prevent damage to the system. It is also a useful metric to track daily, weekly, and monthly to monitor the health of your filters and filter cleaning system.
      • Static pressure gauge: A static pressure gauge may be installed at various points in the ductwork of a dust collection system to measure the static pressure of the system. By monitoring the static pressure at different points, operators can identify areas of the system that may be causing airflow restrictions or problems with the system. This can help to diagnose issues with the system and optimize its performance. You will also likely see a standard pressure gauge on your compressed air line if using a pulse jet style dust collector.
      • Flow sensor: A flow sensor is typically installed in the ductwork of a dust collection system to measure the airflow rate of the system. The sensor typically consists of a probe that is inserted into the ductwork, and it measures the velocity of the air passing through the duct. By combining this measurement with the cross-sectional area of the duct, the flow sensor can provide an accurate measurement of the airflow rate. This information is useful for optimizing the performance of the system and maintaining a safe working environment for operators. Flow sensors are less common with simple dust collection systems but are an inexpensive way to ensure your airflow stays within range.

      How to Use a Magnahelic (Differential Pressure) Gauge to Measure Dust Collector Performance

      The static pressure drop measurement is a critical parameter in assessing the performance of a dust collector because it provides real-time information about the condition of the filter and the overall efficiency of the system. As the filter accumulates more dust particles, the static pressure drop increases, which reduces the airflow and negatively impacts the dust collector’s performance.
      If you watch the gauge for a few minutes, you will see the differential pressure slowly rise as dust accumulates on the filters. When the pulse jets fire (you will hear the blast of compressed air), you will see the pressure drop as the dust cake is knocked off the filters by a blast of compressed air, allowing more air flow through the filters.
      By monitoring the static pressure drop over time, maintenance personnel can determine when it is time to clean or replace the filter to maintain optimal performance. Regular monitoring of the static pressure drop also helps identify any unexpected issues with the dust collector’s design or operation that may be causing excessive filter clogging or decreased airflow.

      What is the Expected Range of Static Pressure Drop Across a Baghouse?

      The expected range of static pressure drop (also referred to as differential pressure, or “DP”) across a baghouse dust collector can vary depending on several factors, including the type of baghouse, the type of filters used, the airflow rate, and the properties of the dust being collected.
      Generally speaking, a static pressure drop of 3-6 inches of water column (WC) is considered normal for a baghouse dust collector. However, the pressure drop can range from as low as 1 inch WC to as high as 10 inches WC or more, depending on the specific operating conditions and the design of the baghouse.
      For a cartridge collector, generally a static pressure drop (or “DP”) of 1-4 inches of water column (WC) is considered normal. A DP higher in the 5-6 inches or higher range is a good indicator that the filters are clogged (or “blinded”) and need to be changed. Some manufacturers design their collectors for a higher differential pressure, so check your manual to be sure.

      Collector Type Normal DP (differential pressure) Range
      Baghouse Collector 3-6 inches WG
      Cartridge Collector Or Baghouse with Pleated Filters 1-4 inches WG
      Expected Range of Static Pressure Drop Across a Baghouse

      Can Static Pressure Drop be “Too Low”?

      After a filter change, you will notice that the static pressure drop indicated on your gauge starts very low. You may also notice that the filters do not immediately capture all dust. This is normal. Over time (an hour or so depending on filter type and dust load), the filters will accumulate a “dust cake”, which allows the filters to efficiently capture dust. This is known as “seasoning” the filters. After this seasoning period, you will notice the DP increase to normal operating range.
      If you notice a sudden drop in differential pressure, it could be an indicator of a leak or a broken bag or filter. This is another good reason to check your Magnahelic gauges daily, so you gain an understanding for the normal range for your dust collector.
      Most issues that affect your dust collection system (full hopper, broken filter, blinded filters, non-functional pulse jet cleaning system, etc.) will be noticeable as an anomaly in the differential pressure gauge reading, so it is very important that your daily maintenance schedule includes a check of the differential pressure gauge.

      How to Select a Differential Pressure Gauge

      When selecting a static pressure gauge for a dust collector, there are several factors to consider to ensure accurate and reliable measurements:

      • Gauge type: There are different types of static pressure gauges available, including mechanical, electronic, and digital. Mechanical gauges are the most common and are relatively inexpensive, but they can be less accurate than electronic or digital gauges. Electronic and digital gauges offer better accuracy and precision, but they can be more expensive.
      • Pressure range: Choose a gauge that has a pressure range that covers the expected operating range of the dust collector. It is important to ensure that the gauge can accurately measure the expected static pressure drop across the filter. The pressure range is typically indicated on the gauge or in the product specifications. Most dust collectors should have a 1-10 in. WG pressure range.
      • Accuracy: The accuracy of the gauge is an important consideration. A higher accuracy gauge will provide more precise measurements and help ensure that the dust collector is operating at optimal performance. The accuracy of the gauge is typically indicated in the product specifications.
      • Display: Choose a gauge with a clear and easy-to-read display. This is especially important if the gauge will be monitored regularly.
      • Durability: The gauge should be durable enough to withstand the conditions of the environment in which it will be used. For example, if the dust collector operates in a harsh or corrosive environment, choose a gauge that is designed for such conditions or locate the gauge remotely where it can be installed without being exposed to the harsh environment.
      • Installation: Consider how the gauge will be installed in the system. Some gauges require mounting on a panel, while others can be installed directly into a pipe or duct.

      Integrated Differential Pressure Gauges

      Many dust collector companies including Baghouse.com offer dust collector controllers that include integrated DP gauges. Pulse valve cleaning systems can often be set to “clean on demand”, which means the pulse valve controller senses the differential pressure and only fires the pulse valves when the DP reaches a set value. This is a more efficient mode than simply cleaning on a timer, as it uses compressed air only when needed. Many of these controllers have a digital readout to display the DP value.

      Turbo controller with integrated differential pressure sensor

      Turbo Controller with Integrated Differential Pressure Sensor

      One limitation to controllers with integrated pressure sensors is heat. If your application will expose the controller to temperatures greater than 120F, the heat may cause your controller’s pressure transducers to fail prematurely. In these rare cases, we recommend locating the controller in a remote location that is shielded from extreme heat.

      Magnahelic vs Photohelic Gauges

      Magnahelic Gauge Installed on a Baghouse

      Magnahelic Gauge Installed on a Baghouse

      Magnahelic gauges and photohelic gauges are both types of differential pressure gauges commonly used in HVAC and dust collection systems. While both gauges measure the difference in pressure between two points, there are some differences between the two types of gauges.
      Magnahelic gauges are mechanical gauges that use a spring-loaded diaphragm to measure pressure differences. The diaphragm is connected to a pointer that moves over a scale to indicate the pressure difference. Magnahelic gauges are rugged, reliable, and relatively inexpensive, but they are not as versatile as photohelic gauges, as they do not provide flow rate readings.
      On the other hand, photohelic gauges are electronic gauges that use a light beam and a photodiode to measure pressure differences. The photodiode detects the amount of light that passes through a transparent diaphragm that is deflected by changes in pressure, and the gauge converts the light readings into a pressure reading. In addition to measuring pressure differences, photohelic gauges can also provide flow rate readings by using a built-in flow guide that directs the airflow through the sensing element.
      Another significant difference between magnahelic and photohelic gauges is the display. Magnahelic gauges typically have an analog display that shows the pressure difference using a pointer and a scale, while Photohelic gauges have a digital display that shows the pressure and flow rate readings in real-time.
      Choosing between a mechanical or photohelic gauge will depend on your budget and your application. If you plan to connect your pressure gauge to a computer system or HMI (human machine interface) in a control room, you will likely select a photohelic gauge which can output the sensor readings via an electric output.

      How are Flow Sensors Used to Measure Dust Collector Performance?

      A flow sensor is another commonly used instrument to measure the performance of a dust collector. Unlike a static pressure gauge that measures the resistance to airflow caused by the accumulation of dust particles on the filter, a flow sensor measures the actual airflow rate through the dust collector.
      The flow sensor is installed in the duct or pipe that carries the air from the dust collector, and it measures the volume of air passing through it per unit time. By measuring the airflow rate, the flow sensor can provide information about the efficiency of the dust collector and identify any problems that may be impacting performance.
      Typically flow sensors are connected to a Magnahelic type pressure gauge. The user must correlate the pressure gauge reading to the cross sectional area of the duct to calculate a flow reading. Once this initial math is done, set point for the pressure gage can be established so maintenance staff can check the reading daily/weekly and note if the pressure is outside the expected range, indicating a blockage or leak in the duct, or some other anomaly that needs to be fixed before it causes a major problem.

      Pressure Gauge Maintenance

      Maintaining your gauges is fairly easy. Once a week, the pressure tubes running to the gauge should be disconnected and cleared out with compressed air to ensure a good reading.


      Not sure if your gauge is reading correctly? Disconnect one tube at a time. When the low pressure side is disconnected, your DP reading should jump. When the high pressure side is disconnected, the DP reading should go to zero. If you disconnect a pressure tube and the DP reading doesn’t change, it is likely that one or both of the pressure tubes has as leak or is plugged.

      Purchasing a Differential Pressure Gauge

      Baghouse.com sells all types of dust collection system parts and components, including differential pressure gauges for all applications.
      For pricing, please Contact Us and we will provide you a quote and answer any questions you may have.

      CONTACT US TODAY!

      For more baghouse related training and information, be sure to check out our Baghouse Online Training page.

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      Other Causes of Baghouse Filter Failure

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      An image of dust collection filters completely covered in build-up from moisture

      The four main reasons why baghouse filters fail prematurely are abrasion, exceeding the maximum operating temperature, chemical attack and fire. All of these can dramatically shorten the the life of a baghouse filter as well as cause serious damage to the baghouse system*. However there are other lesser known causes that can cause premature dust collector filter failure. Let’s review them.

      “If the filter system is undersized, then the filters will suffer increased wear…”

      Undersized Dust Collector for CFM

      It is essential that an industrial baghouse system be carefully engineered and sized to handle the right amount of air flow (CFM) for the application. If the filter system is undersized, then the filters will suffer increased wear.  Additionally, an undersized system will eventually lead to inadequate air flow, poor venting that can damage equipment, higher emissions, loss of reclaimed product and a hazardous work environment.

      A dust collector can be undersized in two main ways: (1) by not having enough filters for the airflow, and (2) by having too much airflow through too small of a unit, thus creating high internal can/interstitial velocity.

      Sadly, many less reputable sales reps and even some dust collector OEMs often undersize systems in order to undercut their competition on price. Other times, plants have tried to increase system capacity without consulting with an experienced dust collector manufacturer and even up overloading their units.

      Wrong Filter Media or Style of Filter  

      The choice of baghouse filter media depends on a number of factors, such as temperature, resistance to chemicals, target dust size, physical characteristics, collection efficiency and price. If the choice of fabric is unsuitable for the application required, this can have a dramatic reduction in the lifespan of the filter.

      For example, trying to use a low temperature filter fabric such as polyester (max temp 250F – 275F) in a high temperature (300F – 500F) baghouse system will quickly result in filter failure. 

      Often, operators must consider more than just the maximum temperature as the mix of temperature, humidity and chemical makeup in the gas stream can cause failures if not accounted for when selecting the media. For example, in many gypsum applications the temperature is not normally very high (under 200F) so polyester media might seem to be a good choice. However, the combination of elevated temperatures and high humidity can cause the gypsum to react with the polyester and cause hydrolysis, which leads to the bag becoming hard and brittle. For this reason many gypsum applications used aramid filters even though the temperature normally would allow for cheaper polyester bags.  

      Finally, many suffer problems due to using cartridge filters where a bag filter is more appropriate. Man applications can make good use of cartridge collectors to improve operation and reduce the overall cost of a system. However, we often see people try to use cartridges in applications ill-suited for them such those with irregular-shaped material, sticky materials, or high temps.


      An image of a baghouse filter that has hardened from hydrolysis
      Picking the right fabric for the right temperature isn’t everything. This is the effect of hydrolysis on an improperly selected baghouse filter.

      Bent and Damaged Cages

      During regular maintenance or when stored improperly, cages can be bent, damaged, warped and or even corroded. Using baghouse filter cages in this condition will lead to the filters failing prematurely. When a cage is bent or damaged, sharp points can form from broken wires and cracked welds that can physically damage the filter creating tears and holes.  If rust or corrosion is present on the cage, this creates abrasion and leads to tears and holes in the filter. Additionally, bent cages will cause the bags to hit each other or the sides of the housing when they are pulsed creating localized wear spots.

      An image of a PTFE filter with two small holes in its fabric
      Have you reused rusted or bent baghouse filter cages and then seen holes in your filters like these?

      Poor Installation

      Improper installation of filter bags can also result in early bag failure and loss of cleaning effectiveness. For top load pulse jets, the most common install errors involve not seating the snap band properly. For a bottom load unit the bag not being folded over the top of the cage properly, poor clamp placement and tightening the clamp too much or too little are all common. 

      Additionally, duct design, turning vanes and deflection plates all contribute to uniform gas distribution to all filters. However poor installation of these elements can result in high airflow regions that will abrade the filter bags.  Rough handling such as bending or stepping on the bags during installation or improper tensioning can also cause holes or tears in the bag filters reducing their strength and durability.

      Moisture

      An image of dust collection filters completely covered in build-up from moisture
      Please tell us that you check your baghouse filters enough before letting moisture build up this badly.

      Common sources of condensation and moisture in a baghouse are leaking gaskets around the doors and airlocks or upset conditions in the process.  Moisture can weaken the filter media, causing filter leaks or failures, and allow dust to bypass the filters. It can also alter the adhesion characteristics of the dust creating hard-to-clean mud and blinding of the filter. Moisture can also create chemical issues within the baghouse. For example, acid gases mixed with high moisture can cause an acid flash. This is where the acids condense out of the gas stream and damage the filters and housing. 

      As discussed in this and the previous article, there are a number of reasons why industrial baghouse filters fail prematurely. Baghouse.com has experience helping many with these and other problems find solutions to get their systems back to peak performance. For more information and to arrange a quote for all your baghouse requirements, please contact us at Baghouse.com

      * See article “Top 4 reasons why baghouse filters fail”

      Need Help Ordering Baghouse Filters?

      Whether you know exactly what you want or could use some help getting the right dust collection filter, we’ll put together a free quote with the perfect filter for you.

      Contact Us Today!


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      Video: Intro Guide to Sizing and Designing Your Baghouse

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      An image of Baghouse expert Dominick DalSanto in front of a camera with the text "Sizing Your Baghouse" displayed in front of him
      A video introduction to the Baghouse.com Guide for Sizing and Designing your Dust Collection System

      Hi, and welcome to our guide for how to properly size and design your dust collection system.

      This guide is going to help you to avoid some of the more common pitfalls we see with sizing a dust collection system. For example, many dust collector OEM’s and sales rep organizations will frequently undersize their systems in order to beat the lowest price in any bidding competition. But then later on, once installed, they don’t perform adequately.

      Our guide’s going to help you to calculate the approximate size and determine an adequate system configuration that will meet your application and process needs, which you can then use when comparing quotes from various manufacturers. Our guide’s also going to provide information that will be helpful for general baghouse maintenance, operation, as well as safety procedures.

      If you have any questions, please, feel free to contact us for more information.

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      Wood Products Firm Fined $114K for Combustible Dust

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      Industrial Dust Powder

      British Columbia’s workplace regulatory body, WorkSafeBC, fined West Fraser Mills, a wood product firm that operates in both the United States and in Canada, $115,000 for having combustible dust present at several of their locations. Inspectors noticed the potentially combustible wood dust around several electrical fixtures, appliances, motors, and moving machinery parts. The flammable dust is supposed to be collected and cleaned up in the locations in which it’s produced. Places with heat and electricity become safety hazards quickly when the dust is not taken care of properly.

      Key Takeaways:

      • West Fraser Mills was issued a hefty fine for letting wood dust accumulate in their warehouses.
      • Fine wood dust comes from milling different wood products and can build up in several places.
      • Fine would dust is susceptible to catching on fire and would not need much to get it started.

      “British Columbia’s occupational safety regulator, WorkSafeBC, issued a CAD$150,000 (about $114,000) fine to wood products firm West Fraser Mills this November for accumulations of combustible dust in several buildings at its Quesnel, BC manufacturing site.”

      Read more: https://www.powderbulksolids.com/news/Wood-Products-Firm-Fined-114K-for-Combustible-Dust-12-17-2019

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      Top 4 Reasons Why Baghouse Filters Fail

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      An image of a baghouse filter that's been damaged by fire.
      An image of the worn-out cuff of a baghouse filter

      The regular operational life of a baghouse filter can be shortened by a number of factors. In this article we will discuss the top 4 reasons:

      1. Abrasion
      2. Exceeding Maximum Operating Temperature
      3. Chemical Attack
      4. Fire

      1. Abrasion

      The deterioration of filter bags through abrasion can be a result of a number of causes.  It can be caused by bags physically rubbing against each other, from the type of cleaning mechanism used or from where the dust enters the bag and impacts the fabric. The most common is caused by excessive particulate loads in the gas stream. Poor inlet design may lead to particulate laden air striking the filters in certain spots more than others such as near the bottom cuff, or strike the filters closest to the dirty-air inlet. In shaker baghouses, bags can deteriorate prematurely due to vigorous shaking particularly at points where the bags are attached. In pulse jet baghouses  the repeated rubbing of the bags against the support cages (especially if the cages are bent or rusty) can considerably shorten the working life of the baghouse filter. This is usually the case when the filters are not sized properly to the cage (otherwise known as the correct amount of “pinch”). 

      “A properly designed, installed and maintained system can go a long way in preventing premature baghouse filter failure…”

      2. Exceeding Maximum Operating Temperature

      An image of dust that's collecting inside of a baghouse
      Is your baghouse building up dust?

      Baghouse filters are manufactured using various materials depending on the application they are being used for. These materials have different thermal durability, that is the upper temperature limit of the fabric. Thermal durability may also be a potential cause of early failure. When operating temperatures rise above the designed limits of the fabric, whether for short spikes or longer overages, filters will begin to degrade and eventually fail. This may be a sudden failure such as the filters melting or catching fire or it could result in less obvious damage that causes the bags to become brittle. Changes in the plant process, fuel source, maintenance shutdowns of other systems, etc., may result in temperature spikes that will irreparably damage the filters. 

      3. Chemical Attack

      Baghouse filter failure can also occur from a chemical attack. In its simplest form, this can be caused by using the wrong fabric for the chemical makeup of the gas stream. If gas stream characteristics are not taken into consideration when selecting the filter fabric and/or treatments/finishes, chemical attack can cause considerable damage to the baghouse filter.  Other times unexpected changes occur in the gas stream that can cause changes in the composition of the gas. For example, operating temperatures may drop below the dew point allowing chemicals in the gas stream to condense on the filters. This can have a dramatic effect on the life span of a baghouse filter, therefore proper fabric selection and maintain tight control over the process operating conditions and procedures can help eliminate bag deterioration caused by chemical attack.

      4. Fire

      An image of a baghouse filter that's been damaged by fire.
      A dust collection filter damaged from fire.

      Premature baghouse filter failure can also be caused by fire. This could range from a relatively mild occurrence to a far more serious event. A minor event could be caused by an ember or a spark entering the baghouse system. The ignition source can then be drawn through baghouse system and make make its way to the surface of the filter causing a hole to be burnt in the bag or for it to catch fire.

      Additionally, if the dust collection system is not working properly dust accumulations may form that can then provide fuel for a potential fire or explosion. If then a spark or ember enters the system this built up dust can ignite causing a fire, which can then be dragged through the entire system causing a serious or even catastrophic conflagration. This often happens when a system is choked off with high pressure drop (differential pressure) across the filters or when the dust discharge system (baghouse airlock and any connected screw/pneumatic conveyors downstream) do not remove the dust from the baghouse quickly enough.

      Prevention

      A properly designed, installed and maintained system can go a long way in preventing premature baghouse filter failure. Following a regular preventative maintenance provided by a reputable dust collector OEM like Baghouse.com can keep your system in good working order. At times a dye leak test among other things can help technicians identify the exact cause of early filter failure.

      Further Information 

      For further information on baghouse filter failures, please see additional article on lesser known reasons of baghouse filter failures.

      Need Help Ordering Baghouse Filters?

      Whether you know exactly what you want or could use some help getting the right dust collection filter, we’ll put together a free quote with the perfect filter for you.

      Contact Us Today!
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      Dust Collector Fire Doused at LED Lighting Plant

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      An image of an industrial facility before its dust collector caught fire

      According to local media, a dust collector at the Innotec LED factory briefly caught fire at 11:30 in the morning on 7 May. Five fire trucks were dispatched to the Zeeland, Michigan manufacturing facility. All ten of the Innotec workers present at the time were able to evacuate safely, and the blaze was suppressed in under ten minutes. Innotec, a company founded in the early nineties in Hudsonville, Michigan, is a producer of LED lighting used for heavy machinery, automotive uses and other applications.

      Key Takeaways:

      • The Innotec Plant experienced a fire, fortunately without loss of life, on Tuesday, the 7th of May.
      • The Zeeland Plant fire in MI, on West Washington, was reported on by the Holland Sentinel.
      • The blaze ignited around 11:30 AM, followed by the safe evacuation of about ten workers on site.

      “During that incident, flames were contained to the building where the dust collector was located and no one was hurt.”

      Read more: https://www.powderbulksolids.com/news/Dust-Collector-Fire-Doused-at-LED-Lighting-Plant-05-08-2019

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      Texas to reduce ozone-creating emissions for Greater Houston Area

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      An image of smoke bellowing out of an industrial smoke stack

      Changes to Texas’ clean air plan has now been approved by the EPA. The clean air plan serves to improve the regulation of storage tanks and also give reasonable control for technology that serves to guide the regulation of emissions that go to the ozone layer. This move would help the Houston-Galveston-Brazoria area to enhance the quality of its air and to better attain the 2008 ozone standard that was set. The state of Texas is committed to improving the ozone layer and makings its air cleaner, a spokesperson for the state says, because this would help communities that are living in the state. In the 2008 ozone standard, the area under consideration was analyzed as a moderate non-attainable classification from a marginal non-attainable classification. Therefore, the EPA has now shown that is it approving Texas’ plans to regulate the emission of volatile organic compounds from storage tanks. It was determined by the EPA that this new move will work with the state’s already existing regulations on volatile organic compounds and nitrogen oxide. This is important because these two compounds, volatile organic compounds and nitrogen oxide, react in the presence of sunlight to produce ozone pollution at the ground level that harms the quality of the air. Next, some background on ozone pollution and air quality is analyzed.

      Key Takeaways:

      • The State of Texas’ clean air plan has now been approved by the EPA and this encompasses improving the regulation of storage tanks.
      • Texas, according to the spokesperson, is showing a commitment to improving the air quality of its area for its citizens by reducing ozone emissions.
      • When there is ozone in the air that we breathe, our health is compromised and this is more dangerous for children and the elderly.

      “The agency said the changes will help the Houston-Galveston-Brazoria area move toward better air quality and attainment of the 2008 ozone standard.”

      Read more: https://www.ishn.com/articles/110713-texas-to-reduce-ozone-creating-emissions-for-greater-houston-area

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      Welding safety precautions

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      Welding Dust Collectors

      There are several methods of joining metals today but the most common is welding. During welding, two metals are joined together or fused using heat, pressure, or even both techniques. This produces a final joint that could be as strong as or even stronger than the two metals from which it was produced. Some of the potential hazards in welding that the author states are harmful dust, heat, smoke, fumes, and light radiation that is injurious. The smoke produced by welding can be toxic in itself since they are gases. The heat that is generated by the welding activity can result in burns when it comes in contact with the skin some of which are eye injuries when pieces of chips that are hot come in contact with the eye. Even the light that is emitted during welding can cause damage if the eye is not protected. Added to this is the danger of one getting electrocuted during the welding activity. The NIOSH has established a hierarchy of hazard controls which has become the widely accepted industry standard for determining the feasibility and potential causes of injuries and hazards during a welding operation. The five levels of the hierarchy are next discussed in the blog.

      Key Takeaways:

      • Welders are at a high risk of eye injures from the hot slag and metal chips.
      • Wearing a welding helmet with filter plates will help protect you from rays and weld sparks.
      • Adequate ventilation is crucial to keep welders from inhaling too many airborne contaminants.

      “Impact, penetration, harmful dust, smoke, fumes, heat and injurious light radiation are all potential hazards associated with welding. Welding “smoke” is a mixture of very fine particles (fumes) and gases.”

      Read more: https://www.ishn.com/articles/110590-welding-safety-precautions

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