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Tag Archive: Dust Collector Design

  1. Air Pollution Control & Managing Industrial Dust

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    Disclaimer: The contents of this industrial dust blog are intended to be general safety guidelines. All businesses will still need to refer to OSHA, NFPA, and local ordinances required for their business.

    Industrial Dust Guide

    Dust builds up in your home may simply be a nuisance you take care of while spring cleaning. But in the workplace, dust can become a serious hazard if not properly handled. To get a better understanding of the negative effects of dust in the workplace we will provide a brief overview what industrial dust is, how industrial dust is created , potential dangers you should plan for, and the benefits of a properly engineered dust collection system.

    Industrial Dust Guide

    What is Industrial Dust & How is it Created?

    Dust consists of small particles of dry matter that build-up on hard surfaces such as floors, tools, industrial equipment, ducts, etc. Industrial dust can generate more frequently than household dust. This is because it generates from the daily from the manufacturing or production process. For example, a small woodworking shop could generate dust from activities like sawing, grinding, or cutting. Industrial dust can even break out during processing. Another example, in an agricultural facility process dust can come from sugar, flour, grains, etc.

    Common Types of Industrial Dust

    • Wood – Activities like sanding, high speed cutting, low speed cutting, paning etc. can create dust which is both explosive and fire prone.
    • Food Particulate– Certain food particulate can be explosive, abrasive and fire prone. This can encompass a wide variety of particulate such as flour, grains (corn, rice), soybeans, and more.
    • Cement & Concrete – This dust is abrasive but considered to be less explosive and prone to fire.
    • Paper Products – Dust created from paper products can be both explosive and fire prone.
    • Paint Powder – Paint pigments can be highly explosive
    • Pharmaceuticals – Pharmaceutical dust like dry powder and coating are both explosive and fire prone.
    • Plastic, Chemicals, Stone, Minerals , Metal etc.

    Is Industrial Dust Dangerous?

    The build-up of combustible dust is serious hazard in the workplace. Airborne dust presents a safety hazard to employees. Many types of industrial dust may contain carcinogenic properties that would require removal to keep employees safe, healthy, and to comply with government regulations.
    Airborne dust may also be highly flammable, and safeguards must be implemented to prevent the risk of a dust explosion.

    Conditions for a Dust Explosion

    • Oxygen
    • Enclosed space
    • Ignition source
    • Combustible dust at the right concentration level

    When you are working in an industry that operates with combustible dust, explosions and fires are a constant threat. If you are taking the right steps to ensure a safe working environment you are more likely to avoid a fire or explosion that would cost you the safety of your employees, thousands of dollars in lost production, and regulatory fines. Combustible dust can present itself in a variety of applications. Below are just some of the types of industries that work with combustible dust.

    Common Examples of Combustible Industrial Dust

    • Agriculture (grain, flour, sugar, etc.)
    • Wood
    • Metals (aluminum, zinc bronze, etc.)
    • Rubber
    • Chemicals (coal, Sulphur, etc.)
    • Pharmaceuticals
    • Pesticides
    • Plastics

    There are no short cuts to minimizing dust hazards and ensuring the safety of your employees. But understanding if you are working with combustible dust is the first step in prevention.

    Regulation of Air Pollution Control

    Many industrial industries in the U.S. must comply with strict air pollution control standards. These standards are set by the Environmental Protection Agency (EPA), National Fire Protection Agency (NFPA), OSHA, or local governing entities like the AQMD in California.

    OSHA regulates industries that are susceptible to combustible dust. When implementing OSHA’s set of standards, you are creating a safe working environment, avoiding property and economic loss from an explosion, avoiding regulatory fines. To learn more about OSHA’s safety standards for combustible dust, visit their guide here.

    The NFPA (National Fire Protection Agency) is another agency that publishes a list of guidelines to help minimize injury or death from combustible dust. The following codes are related to the most combustible types of dust (e.g., sugar, wood, fine aluminum):

    • 664, Standard for the Prevention of Fires and Explosions in Wood Processing and Woodworking Facilities
    • 484, Standard for Combustible Metals
    • 61, Standard for the Prevention of Fires and Dust Explosions in Agricultural and Food Processing Facilities

    How a Properly Engineered Dust Collection System Supports Air Pollution Control

    5 Benefits of a Dust Collection System

    Dust collection systems are engineered and designed to filter airborne industrial dust particles and debris that can cause damage to plant equipment, create a hazardous work environment, and negatively impact plant production. The top 5 benefits of a dust collection system are:

    1. Meet Compliance Regulations and Standards – All agencies require industrial facilities to maintain and meet air quality standards to ensure a safe and clean environment for their plant, employees, and the surrounding community.
    2. Boost Productivity – An accumulation of dust particles and debris on industrial equipment can interfere with overall plant performance. A dust collection system can collect these dust particles before they can interfere and compromise the health and performance of your manufacturing equipment.
    3. Improve Product Quality – Dust can settle and accumulate on products during the manufacturing process. This has a negative impact on the quality and consistency of finished goods. A dust collector will reduce and effectively capture these dust particles, allowing for product quality to improve and maintain consistency.
    4. Enhance Health and Safety Standards – Inhalation of hazardous dust affects human health and a dust collection system is vital to removing these hazards and to keep employees safe.
    5. Preserve the Quality of Equipment – As dust particles and debris are created inside a manufacturing facility, the contaminated dust will settle onto other surfaces such as computer systems and manufacturing equipment. This dust buildup can be harmful and result in malfunctioning equipment. It can also create unnecessary, frequent, and costly maintenance to keep dust and debris from accumulating. With a dust collector system purifying and collecting dust particles, the chances of excessive dust build-up is minimal.

    In addition to adding a dust collection system to your plant, you can also consider some of these dust removal options and explosion venting strategies.

    Baghouse Dust Removal Options

    • Enclosed Box – A simple pipe system funneling dust into an enclosed box, placed underneath your hopper, is one dust removal option.
    • Drum or Bag – A removable drum or bag can be a simple and easy solution to collecting and disposing dust.
    • Rotary Valve – Rotary valves (also known as airlocks, rotary feeders, or airlock feeders) help transition material from a dust collector to a drum or bin.
    • Screw Conveyor for Baghouse Dust Collectors – Large baghouses with heavy dust loads typically use screw conveyors. The screw conveyer would transport dust away from the collector, then send it to a designated disposal area.

    The best method of dust removal from your hopper is dependent on some of the following components:

    Explosion Venting Strategies

    Common Venting Strategies

    •Preventative Maintenance Plan: In conjunction with a protection strategy, every facility should implement a well-designed and operated preventative maintenance plan. Perform regular checks on the health of your dust collection system to prevent more serious issues.

    •Explosion Vent or Panels: Explosion vents or panels are designed to rupture at a set pressure (PStat). When a source of ignition meets a fuel source with sufficient oxygen present, an ignition will occur. As the ignition begins, the pressure inside of the vessel will increase rapidly. Depending on the material’s Kst value, the pressure rise may be slow or extremely rapid. As the ignition progresses, the internal pressure will meet the PStat rating of the explosion panel. The explosion panel will rupture, venting the ignition gasses. The explosion vent provides a relief avenue for the expanding gasses, but the pressure in the vessel will continue to rise until it reaches the Pred pressure. This is the maximum pressure of the ignition event when explosion vents are functioning, so this is usually the pressure rating the vessel is designed to withstand.

    You can use explosion panels with a short length of ducting to allow for interior use without flameless venting. They do require replacement once a rupture occurs, but they are simple, cost-efficient, and easy to install. Explosion vents are typically useful on baghouses and cartridge dust collectors.

    • Explosion Latch: Explosion latches work under the same principle as the explosion panels, but they are not single use. This is a more cost-effective option (versus explosion panels) when you have  a large baghouse or large quantity of vent area.

    Additional Venting Strategies

    • Flameless Venting: Flameless venting can consist of a flame arrestor element, vent panel, and flanged housing. This combines the techniques of explosion venting and flame arresting. You can also install a flame arrestor element over a standard explosion vent. When the vent ruptures, the burnt dust and flames enter the flame arrestor element. The element helps to contain the hazardous dust and flames and prevents it from exiting, where it could potentially ignite a secondary explosion or endanger employees. While flameless venting does stop flames from exiting the vessel, there will be extremely hot gasses exiting the flameless vent. When using flameless venting, make sure to pay close attention to the vents proximity to personnel areas. If possible, always aim flameless vents away from regularly occupied areas.

    • No Return Valve: Protecting the dust collector from over-pressure is essential, but it is equally important to stop a deflagration propagation back to the operator space. To prevent this, a No Return Valve is needed in the inlet duct. This valve is a weighted damper that is held open by the air flow during normal operation, allowing air and dust to pass through to the dust collector. In the event that deflagration occurs in the dust collector, the pressure propagation through the duct work will close the No Return Valve. This prevents the deflagration from reaching any process equipment and also limits the risk of secondary explosions.

    • Abort Gate: Abort gates are high speed dampers that contain a spring assisted blade and is typically held in place by an electromagnet. Their purpose is to minimize the risk of an explosion by diverting flame, spark, or debris from entering a facility through a return air system.

    • Spark Detection & Extinguishing System: This method uses infrared sensors, typically located on the ductwork, to detect sparks or burning material in the ductwork upstream.

    Secondary Event Protection

    All the methods described previously are excellent options for managing primary explosions, but one of the most catastrophic outcomes of a combustible dust explosion is an un-controlled secondary explosion.

    When a primary explosion happens, there may be a pressure wave that propagates through the plant. This will “kick up” the layer of ambient dust. If the explosion is not contained in the dust collection system using the methods previously outlined, this ambient dust in the air could come in contact with the primary explosion flame front. This results in an uncontrolled explosion in an occupied space.

    To minimize the risk of secondary explosions, the first step should always be to expect perfect performance from your dust collection system. It is not acceptable to have a dust collection system that does not function properly. Another suggestion is to limit the amount of horizontal surfaces in your plant that cannot be regularly cleaned. Drop ceilings and in-accessible equipment are great examples of this.

    There are many strategies that may fit your unique application or facility. We recommend to consult your local or state building codes and regulations before choosing your explosion venting strategy. Some areas will have specific regulations for fire safety and environmental safety, and you want to ensure you are meeting those guidelines. Here are some questions to consider before implementing an explosion venting strategy.

    Questions to Consider

    At U.S. Air Filtration, we have been eliminating the hazards of industrial dust for 35 years.
    To learn more about how you can manage industrial dust at your facility contact us at 888-221-0312 or [email protected] to speak with an engineer

  2. How Much Does a Dust Collector Cost?

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    Summary: Small dust collectors for applications up to 1,000 CFM airflow cost between $100 up to $5,000 USD.  Pre-fab dust collection systems such as a bin vent or cartridge type collector cost between $10,000 and $80,000 USD. Pre-fab units acommodate airflow volumes between 2,000 and 10,000 CFM. Custom baghouse dust collectors or multiple module bin vents and cartridge collectors range between $50,000 to $1 million USD and more.

    Watch Video: How Much Does a Dust Collector Cost?

     How Much Does a Dust Collector Cost


    Table of Contents

    • What is a dust collector?
    • Dust Collector Cost
    • What Goes into the Price of Your Dust Collector
    • Dust Collector Filter Media
    • Electrical Controls or Accessories
    • Summary
    • Dust Collection Resources

    What is a Dust Collector?

    Dry dust collection systems remove airborne dust that generate during manufacturing or industrial processing.  Examples include woodworking, bulk powder processing, or food production.  Dust collectors range from small portable units to extensive custom turnkey systems.

    wen-dust-collectors-air-filtration-3403-64_1000

     

    Dust Collector Cost

    Small Dust Collector Cost

    A small dust collector that is able to handle up to 750 or 1,000 cubic feet per minute (CFM) of airflow can cost between $100 up to $5,000.  These small retail units are ideal for ventilating two to three pieces of equipment (i.e. saw, sander, planer) for a small woodworking or metalworking shop.  Small units must be set up extremely close to the collection point. This reduces static pressure and fan size.  You can find these units at an online retailer or home improvement store.

    Large Dust Collector Cost

    Larger dust collection systems are needed to ventilate large scale processing equipment. These industrial dust collectors are found in some of the following commercial applications:

    • School woodshops
    • Metalworking facilities
    • Sandblasting
    • Chemical processing
    • Food processing
    • Cement production
    • Energy production
    • Mining
    • Foundries, and many others.

    Large dust collectors are designed to handle a much larger dust loads, meet higher airflow, or specific temperature requirements.  Pre-fabricated dust collection systems like a bin vent or cartridge dust collector can handle airflow volumes between 2,000 and 10,000 cubic feet per minute (CFM).  Depending on the size of the unit, filter media, and the fan size, units can range between $10,000 – $80,000 USD.

    Custom Dust Collector Cost

    Custom turnkey, dust collection systems that require complete engineering can range between $50,000 – $1 million USD or more. These systems can include one more pulse jet baghouses, multiple modular bin vents, or several cartridge collectors.

    What Goes into the Price of your Dust Collector

    The price of your dust collection system is also determined by several variables outlined below.

    Dust LoadUSAF CleanFlo Collector

    Dust load is the amount or volume of dust in your work environment that must be cleared within a given time period.

     

    Applications with higher dust loads require more filter media to remove airborne dust particulate.  This means you’ll need a dust collector with a larger footprint. This can drive up the overall cost of your dust collection system.  Applications that generate less than one or two 55 gallon drums of dust per day are usually good candidates for a small cartridge collector or bin vent.

    Type of Dust

    The properties of your dust particulate play an important role in the following:

    • Size of your system
    • Number of filters
    • Type of filter media
    • Filter treatments your application will need.
    • Air to Cloth Ratio
    • Fan Size
    • Temperature
    • Material Handling and Conveying

    To understand the characteristics of your dust particulate, you can ask yourself the following questions.

    Product

    What is being filtered?  Does your product contain moisture or oil?  Products with moisture content greater than 25% are not suited for a dry dust collection system. Products containing hydrocarbons, including oils, may require the application of a special treatment to get optimal filtration.

    Chemistry

    Does your airstream or dust contain chemicals that could damage filter media?  Are there also acids or alkaline in the airstream?  When certain compounds are combined during processing, a chemical reaction can occur. This may require additional media treatment or coating to protect the filter bags from accelerated wear.

    Abrasion

    How abrasive is the dust that’s being filtered?  Consider the hardness of the material along with the shape of the dust.  The velocity of your airflow can also make your dust more abrasive.  Highly abrasive dust may require your housing be fabricated in stainless steel, titanium or other costly materials that are able to withstand long term wear.

    Particle Size

    What is the size of the dust particulate are you collecting? Depending on your emissions requirements, your application may require a special membrane. This would apply if your particulate is very fine.

    Is your dust combustible?

    Combustible dust can be defined as any fine material that has the ability to catch fire and explode when mixed with the proper concentration of air.  Examples of combustible dust include:

      • Wood
      • Food products such as grain, sugar, flour, starch, metals
      • Rubber
      • Chemicals
      • Pesticides
      • Plastics, and more.

    OSHA and NFPA have created guidelines to protect your plant and employees from the risks of a serious explosion.  Also, be sure to review your state and local regulations for proper identification and management of combustible dust.

    Applications filtering combustible dust will also need an explosion venting strategy. Explosion vents or Brixton latches are two common strategies that help reduce this risk. You may also need explosion isolation valves in the dust collection line. This helps prevent a deflagration from travelling back to the equipment should an event occurs inside the dust collector.

    Dust Collector Filter Media

    The type of filter media you choose impacts your system startup and long term maintenance costs. Polyester filter media is an ideal for applications with temperatures below 250°.  Polyester is affordable, highly efficient and readily available.

     

    Other common filter medias include Aramid (Nomex©), Fiberglass, PPS, P84 and Teflon.  You can add treatments to  filter media to enhance it’s efficiency and performance. Treatment for your filter is dependent on your dust characteristics.  In addition, treatments can drive up the cost of your filter bags but also extend it’s life, reduce changeout’s and drive down long term maintenance costs.

    Cartridge Dust Collector

    Air to Cloth Ratio

    Air to cloth ratio, also known as air to media ratio, is a measurement of the amount of cubic feet per minute of air passing through one square foot of filter media.

     

    You can calculate air to cloth ratio based on the size and type of dust particulate you are filtering. It’s an important element in the design and size of your dust collection system.

     

    Generally, the lower your air to cloth ratio, the better your system is at removing dust from the work environment.  However, if your air to cloth ratio is too low it can place unnecessary strain on your dust collector.  Systems that operate at a higher air to cloth ratio have a smaller footprint, size, and price than dust collectors operating at a lower air to cloth ratio.

    Fan Size

    Your dust load, CFM requirements, and static pressure measurements will determine the size of the fan that will pull dust through the system and turn the air.  Your dust collector’s location is relative to the work environment being ventilated and also impacts the size of your fan.  Systems installed close to the work environment can reduce the length of ducting and static pressure. As a result, a smaller fan may be required. The cost of a fan can vary depending on each of these factors.

    Temperature

    Applications operating above 250 degrees Fahrenheit may require more expensive filter media. These applications would need their filter to withstand long term exposure to high temperatures.

    Material Handling & Conveying

    Once your dust particulate has moved through your dust collection system and lands in the hopper, you’ll need to determine how to properly remove the dust. This ensures it doesn’t return into the airstream and plug up your system.  Drums are the most economical option. They perform well when handling waste material with light inlet dust loading.  Light inlet dust loading applies if you generate, at most, a one or two 55 gallon drum of dust per day.

     

    Applications with higher dust loading requirements or those filtering non waste product, need an advanced system to convey material. This helps prevent the drum from overfilling, which can cause dust to back up or return into the hopper.  This can also result in a processing issue that will impact your dust collector’s performance.  In these situations you may need to upgrade from a drum to a larger dumpster, rotary or dump valve.

    Rotary Valves

    Rotary valves seal the bottom of your collector. They help prevent outside air from entering the system while allowing material to be continuously emptied from the hopper.  The cost to add a rotary valve to your dust collection system can vary between $3,000 and $5,000 USD.  

    Pneumatic Conveying

    Larger applications may also require a vacuum pneumatic conveying system. Their purpose is to vacuum material from the dust collector discharge to a common point.  For example, an application with five baghouses may include a common vacuum conveying system. It would help pull discharge material from all five baghouses to one common dust collector discharge area.

    Paints, Coatings 

    Applications with high moisture levels or chemical resistance may require an upgrade to epoxy paint. It can be applied to the interior and exterior of the dust collector. This helps to reduce long term wear of the system. Facilities located near an ocean, lake, or those that process caustic chemicals would use epoxy paint.

    Unit Insulation

    Insulation may also be required if you’re airstream temperature is high and must remain above the dew point in gas form. This eliminates the risk of moisture and condensation. Airflows with high moisture content can cause performance issues with your filter bags. This can include plugging of the system and inefficient filtration. Applications requiring insulation include ventilation of exhaust air coming off boilers, burners during metal forming, and similar processes.

    Electric Controls or Accessories

    Most baghouses, cartridge collectors, and bin vents come standard with an electrical control panel. This powers your pulse cleaning system and your fan separately.  Most experts recommend to integrate your control panel into a starter panel. This powers your pulse cleaning and fan at the same time.

     

    Installation of starter panels can be done at any desired location in your plant regardless of the distance to the dust collection system. Starter panels protect your system from surges or motor damage.  While the addition of a starter panel can add to the initial cost of your system, the ease and added safety it offers make up for startup costs.

    Dust Collection Design Considerations 3

    Is an OEM Dust Collector like Torit Right For Me?

    We recently took a survey asking customers their attitude and preference towards OEM vs. aftermarket dust collection products. Here’s what we learned:

    • 15% of buyers prefer OEM dust collector parts and equipment exclusively
    • 85% of buyers like the option to purchase OEM or aftermarket dust collector parts and equipment
    • 65% of buyers who purchase aftermarket said they get the same performance as an OEM at a more affordable price and/or don’t care about having brand name components.
    • Another 50% prefer aftermarket products because they are more affordable
    • Of the 15% of buyers who only purchase OEM,  the most popular reason for choosing OEM is because they believe they can be trusted to perform long term (33%).

    If budget is not a factor for you and you are willing to pay more for OEM then this may be the right solution for you.  However if you are looking to get the same long term performance from a dust collection system as an OEM and don’t want to pay a higher price for a brand name, then a U.S. Air Filtration system may be a fit.

    Summary of Dust Collector Cost

    Selecting and pricing out a dust collection system involves consideration of each variable above.  Understanding each of these variables is critical to ensuring your dust collector performs efficiently for many years to come while also creating a clean and safe work environment. Each dust collection application is unique so it is possible that applications with very similar product characteristics or volume may require a system that is different in price and size.

     

    To ensure a successful solution, consult with a dust collection engineering and manufacturing company with extensive design and manufacturing experience.  An experienced dust collection engineering firm can help you engineer a system customized to your unique application requirements.

     

    If you have any questions unique to your application, give us a call at 888-221-0312. You can also email [email protected]. In addition, below are some related videos and resources that may help.

    Dust Collection Resources

  3. Baghouse Dust Removal Options

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    Why Baghouse Dust Removal Matters

    The right baghouse dust removal method can help minimize problems that arise due to dust build up in your hopper.

    A hopper is designed to be temporary storage for your discharge. What happens if you have excessive dust build up in your hopper? This can result in your air flow being blocked off and would cause a loss of suction throughout the dust collection system.  This can also become a hazard because it’s more opportunity for combustible dusts to create a dangerous explosion. The right dust removal method for your application can help you avoid these issues.

    Key Components

    The best method of dust removal from your hopper is dependent on some of the following components:

    • What’s your Dust Collector Type? Baghouse or Cartridge Dust Collector?
    • What are the characteristics of your dust? For example, hazardous or non-hazardous?
    • What are the loading rates of your dust?

    Baghouse Dust Removal Methods

    Baghouse Dust Collector

    Enclosed Box

    A simple pipe system funneling dust into an enclosed box, placed underneath your hopper, is one dust removal option. Your maintenance team would be required to monitor and empty the box once capacity has been reached. Prompt removal of dust build up in your enclosed box helps prevent backup or an overflow of the box itself. Non hazardous dust and light dust loads typically use enclosed boxes.

     

    Drum or Bag

    A removable drum or bag can be a simple and easy solution to collecting and disposing dust. Once a drum or bag fills up, maintenance simply removes it by hand or forklift. Once empty, the drum or bag can then be put back into its place. This is ideal for non toxic dusts that you can easily handle.

    Rotary Valves for Baghouses

    Rotary Valve

    Rotary valves (also known as airlocks, rotary feeders, or airlock feeders) help transition material from a dust collector to a drum or bin. It seals a pressurized system against loss of air and pressure. This minimizes product loss during processing. Dust collection, pneumatic conveying, mixing, weighing, feeding, and blending use rotary valves. Larger baghouse systems with over 10,000 CFM  can also use rotary valves.

    Screw Conveyor for Baghouse Dust Collectors

    Large baghouses with heavy dust loads typically use screw conveyors. The screw conveyer would transport dust away from the collector, then send it to a designated disposal area. This is ideal for hazardous or reused materials.  Agriculture, mining, foundries, wood production, and chemicals are applications that use screw conveyors.

    Would you like to learn more about design considerations for a new dust collection system? For more information, download our dust collector purchasing guide.

    Dust Collection Design Considerations 7

  4. Different Baghouse Styles: Advantages and Disadvantages

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    When it comes down to finding the right dust collection system, there are a few different baghouse styles to choose from. So how do you know which one is best for you?

    Baghouse Styles

    Before we dig into the differences between some of the baghouse styles, you need to consider your dust properties and air-to-cloth ratio.  Baghouses are ideally suited for large volume applications with airflow exceeding 1,000 CFM or when high temperature applications are above 375 degrees.  In these environments, a baghouse will handle and most efficiently filter your dust laden air. 

    There are three main baghouses styles (e.g. shaker, reverse, and pulse-jet)  that are commonly used in most industrial processing and manufacturing applications.  Here’s a brief overview on the pros and cons of each to help guide you in identifying the right option for your work environment.

    Pulse Jet Baghouse 

    Pros:    Cons:
    Constantly cleaned so there is minimal dust build up in the dust collector   Requires dry compressed air
    Space Efficient   Cannot be used when there is humidity of high moisture content present
    Requires fewer bags   Cannot handle high temperatures (unless you use special filter media
         

    Reverse Air Baghouse 

    Pros:  Cons:
    Can handle high temperatures Needs to be cleaned often
    Gentle cleaning which allows for longer bag life Residual dust build up is hard to remove
    Units are typically compartmentalized into sections which allows them to be cleaned without shutting off the entire baghouse Low air-to-cloth ratio
       

    Shaker Baghouse 

    Pros:     Cons:
    Very simple to operate     Cannot handle high temperatures
    Low initial investment cost     Not space efficient (takes up a large area)
    Units are typically compartmentalized into sections which allows them to be cleaned without shutting off the entire baghouse     Energy and time sensitive 
  5. What Volume Dust Collector do I need?

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    Do you have a new dust collector project in the works and need help determining the volume? Our introduction to dust collector volume can help with that.

    Baghouse Dust Collector

    The Right Volume

    The most important consideration to factor into a new dust collector is making sure the airflow or volume of the dust collector is efficient at capturing dust and is right for your application.

    For instance, if the volume of your system is too low then your system will not filter dust as efficiently. As a result, your production, air quality and life of your collector can be shortened.  Similarly, if it is too high then your energy consumption costs can be higher and you could disrupt the process of your application. 

    Measurement of Volume

    You measure volume in cubic feet per minute or otherwise known as CFM.  CFM is a measurement of airflow related to air conditioning, heating and ventilation environments. In dust collector applications CFM measures the amount of air per minute that can be moved from a space.  

    Work environments vary dramatically from one another based on several variables. Even very similar environments can require vastly different volumes. To determine the right capabilities for a new dust collector, here are some variables to consider carefully.

    1. How are you collecting your dust?
    2. What is the size of your duct being used to collect the dust?
    3. What is the cubic feet of your work environment?
    4. Calculating volume for new installations.

    Do you need more detailed information? Download our full guide to dust collector volume below. In addition, it comes with a chart that can be helpful for your new dust collector project.

     A Guide to Dust Collector Volume

    Do you have more questions or need some help? Our equipment specialists are also available at 888-221-0312.

    Related Resources:

    Video: Air to Cloth Ratio

    Video: How Much Does a Dust Collector Cost?

    How to Get the Right Dust Collector for your Application

  6. How To Get the Right Air to Cloth Ratio for Your Dust Collector

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    Video Option: Air-to-Cloth Ratio

    Dust collector air to cloth ratio is a critical measure to ensure your system is performing efficiently. 

    How to get the right air to cloth ratio

     

    What is Air-to-Cloth Ratio?

    Air-to-Cloth ratio (a.k.a. Air-to-Media) is defined as a measurement of the amount of air passing through one square foot of filter media.

    Watch Video: Air-to-Cloth Ratio

    Air to Cloth Ratio

    Which is better, Lower or Higher Air-to-Cloth Ratio?

    Generally the lower your air-to-cloth ratio, the more effective your system is at removing dust from your work environment.

    If you operate on a higher air-to-cloth ratio, one of the common issues you will encounter is a decrease in suction. This happens because there is too much dust to capture with an insufficient amount of filter media. The filter cake on your bag eventually builds up too quickly. As a result, your air velocity and suction decreases. From there it’s a domino effect and your plant air quality decreases, filters clog quicker, and valve life expectancy is impacted. So, you’ll be performing change-outs more frequently which will cost both time and money.

    How to Calculate Air-to-Cloth Ratio

    To calculate air-to-cloth ratio, take the amount of airflow (CFM) and divide that by the amount of filter area within your dust collector. 

    For example, if you’re calculating for a cartridge collector, a typical range would be a 4:1 air to cloth ratio.  Keep in mind that environments with a large ventilation area and more pick up points require a system with a higher CFM to provide adequate suction.  Would you like to know which air to cloth ratio may be right for your project? If so, download our air to cloth guide which provides the recommended ratio for a wide variety of applications.

    Why is right Air-to-Cloth ratio important?

    What are the negative effects of improper Air-to-Cloth ratio?

    • Poor venting, therefore causing damage to equipment
    • Incur high pressure drops 
    • Impacts your air velocity
    • Excessive use of compressed air

    Related Resources:

    Filter Bag Media Quiz

    Video: Guide to Fan Sizing

    How to Get the Right Dust Collector for your Application

    What Volume Dust Collector do I need?

  7. Guide to Dust Collector Fan Sizing

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    Video Option: Guide to Fan Sizing

    Dust Collector Fan Sizing

    Industrial fans are used in dust collection systems to push dust-laden air through the filters. Fans can either force a draft (push air) or induce a draft (suck air) through the dust collector. Industrial fans are an essential component to a dust collection system so it’s important to choose the right size fan to make sure you have adequate suction to remove dust from the work environment.

    Today we will be helping you size your dust collector fan with this 5-step process. Dust collector fan sizing includes consideration of the following variables.

    • Airflow or Cubic Feet Per Minute, commonly known as CFM
    • Static Pressure
    • Environment & Location
    • Power Requirements
    • Size & Type of Dust Collector

    Airflow or CFM

    The first variable you want to consider with dust collector fan sizing is your airflow volume or CFM. CFM stands for cubic feet per minute and measures the amount of air per minute that can be moved from a space. If your CFM is unknown, you can use your pickup points and duct sizing to get started instead.

    Static Pressure

    The second variable you want to consider is your static pressure. This is defined as the pressure created by a fan or some other source to move air through a ventilation system.

    Environment & Location

    Next, take a look at your environment and location. Location, temperature, altitude, humidity, and area classification can all affect the size and type of fan that is right for your dust collection system.

    • Location – If you are in a humid location this will affect the paint finish of your fan and the fan design.
    • Temperature, Altitude, Humidity – When designing a fan these are all variables used to size the right fan wheel. This will ensure you are moving the right amount of air with the right amount of static pressure.
    • Environment & Area Classification – Make sure to find out if your environment includes any hazardous area classifications. Area classification is also important to ensure your fan meets the classification requirements.

    Power Requirements

    A 3-phase fan is commonly used in dust collection applications. You will also need to consider the power requirements of the country in which the fan will be operating. Different countries have different standards.

    Size and Type of your Dust Collection System

    Lastly, the fan you choose is determined by the size and type of your dust collection system. There are multiple models which handle different volumes.

    A top mount or collector mounted fan is typically used on cartridge collectors that handle a range of 1,500-10,000 CFM. Whereas ground mounted models are used on Baghouses and multi-module cartridge collectors where high volumes are required. Typically, up to 290,000 CFM.

    If you need help sizing your fan, you can contact one of our equipment specialists at 888-221-0312, email [email protected] or request a consultation here.

    Dust Collection Resources

    Looking for additional resources on dust collection systems? Get a free download of our Dust Collector Purchasing eBook below. It’s a comprehensive guide organized into key topics such as dust properties, volume, air to cloth ratio, dust collector styles, and more.

  8. The Importance of Static Pressure for Your Dust Collector

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    Static Pressure and Your Dust Collection System

    Static pressure is the pressure created by a fan or other source to move air through a ventilation system and plays a critical role in the design and performance of pulse jet baghouse dust collection systems. Today we are discussing the importance of static pressure, what it is, how it’s measured, and how to calculate it.

    What is Static Pressure?

    Static pressure is used to determine the fan size you’ll need for your dust collection system. If the fan you choose for your system cannot handle the static pressure, air will not be able to move properly through the system and your dust collector will not be able to remove dust effectively.

    How Static Pressure is Measured

    Like differential pressure, static pressure is measured in inches of water and sometimes will be called water column. The abbreviation for this unit is usually seen as “w.c.” and can also be seen as “w.g.”

    How to Calculate Static Pressure

    To calculate required static pressure, sum the following components of a dust collector system.

    1. To start add 0.5” Second
    2. Add the filter resistance of the collector. This will be the maximum recommended differential pressure from a dirty set of filters.
    3. In most cases you can use 6” for a baghouse and 5” for a cartridge collector. Then add 1” If an outlet duct exists in the system.
    4. Fourth, add the friction loss in the duct system coming to the dust collector. For simple runs of 100’ or less, you can use 6” as a rule of thumb.

    Please keep in mind these are general guidelines and there are many other variables to consider to make sure your system is engineered safely for your unique work environment to achieve peak performance.

    To get specific help for your application, contact one of our equipment specialists at 888-221-0312, email [email protected] or request a consultation below.

    Dust Collector Project Consultation

    Dust Collection Resources

    In search of additional dust collection resources to help you? Get a free download of our Dust Collector Purchasing eBook below. It’s a full guide organized into key topics such as dust properties, volume, air to cloth ratio, dust collector styles, and more.

    Dust Collector Purchasing eBook

    Video: Guide to Fan Sizing

    Video: Air to Cloth Ratio

    Video: How Much Does a Dust Collector Cost?

     

     

  9. Dust Collection: How to Create a World Class Customer Experience

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    Dust Collection Customer Experience Summary:

    • Industrial Dust Collection buyers place high importance on customer experience when making purchasing decisions
    • Customer experience is defined by the interactions a buyer has with a company before, during and after a sale.
    • There are five things industrial buyers value most in their purchasing experience: Product knowledge, Responsiveness, Service, Relationship, and Educational Resources

    If you were to ask most people what’s most important to them when making a purchase historically it’s come down to three things – price, quality, and service. But as buyers have become more savvy and have less time to spend on purchasing, customers now place equal if not more importance on customer experience when making dust collection purchasing decisions. In fact, 86% of buyers are willing to pay more for a great customer experience. And a recent Walker study found that by the end of 2020, customer experience will overtake price and product as the key brand differentiator.

    Customer experience is defined by the interactions a buyer has with a company before, during and after making a purchase.

    What makes a good customer experience when purchasing dust collector parts

    We recently sent a survey to our customers to understand what they currently value when making purchasing decisions and to learn where there may be gaps and opportunities for improvement.

    By understanding our buyer’s perspective it helps us build an experience tailored to the different needs and wants of our customer.
    We’ve organized our findings into five core components that customers valued most:

    Top 5 Key Components to a Customer Service Experience

    1. Expertise and Product Knowledge
    2. Responsiveness
    3. Service
    4. Relationship
    5. Educational Resources and Tools

     

    Dust Collection Purchasing Survey Graphic 1

    Dust Collection Expertise and Product Knowledge

    Expertise and product knowledge were voted as the most valued component in a dust collection customer service experience. Dust collection needs vary significantly even within the same industrial application. Today buyers value sales reps who function first as product experts who understand their specific dust collection challenges. Finding the right dust collection products that will optimize performance requires vast technical knowledge on a filters, valves, troubleshooting, dust collection engineering and more. When a sales rep delivers and establishes their expertise, this evokes trust and assurance to the customer that their buying journey and partnership will be successful.

    “I had a very good conversation with internal sales, Mark. Sharing technical knowledge and information is always helpful!” – Customer Testimonial

    Leveraging Technology to Improve Responsiveness

    Responsiveness is critical to industrial dust collection customers in order to keep their system running at peak performance. A customer may need dust collector parts for an upcoming inspection, an unexpected explosion, or replacements for broken or underperforming parts. To help solve issues before they turn into more disruptive maintenance problems, it’s vital to get a response back to the customer promptly.

    To improve response time, companies can leverage technology in innovative ways that cater to the customer.

    For example, at USAF our sales reps can be reached through multiple channels including direct phone line, email, online quote request, online chat, email nurturing and marketing automation, or via the main line where a live person will answer and direct your call immediately. Investing in several channel options allows USAF to communicate with customers quickly, using their preferred communication method.

    Further, as more of the buyers journey moves online, and as more buyers now prefer online communication over phone and face to face contact, particularly in response to COVID-19, companies need to adapt by investing in technology that will streamline the buyers journey by moving more customer interactions online. This could include any or all of the following solutions:

    • Chatbot Artificial Intelligence
    • Call Center
    • Marketing Automation & Email/SMS nurturing
    • Content marketing – Includes videos, blogs, eBooks, case studies

    “The products I purchase are specialized and by me contacting Patty and her quick response back to me works for our relationship and I wouldn’t change it. She does a fabulous job!” – Customer Testimonial

     

    Dust Collection Purchasing Survey Graphic 2

    Service

    Customers face so many choices when it comes to where they purchase dust collector parts. One key component to the dust collection customer experience is service. Great service isn’t about being short-sighted and merely searching for the next opportunity, instead it’s about prioritizing solving customer problems and focusing on long term wins.

    Today’s industrial buyers expect a service experience that combines one on one human connection with the efficiency that technology brings. An example of this could include the following touchpoints that combine technology with personal outreach:

    • Regular phone call check ins by sales rep before, during and after a sale to help the customer identify the right product and confirm successful delivery.
    • Email nurturing that includes how to advice and relevant educational information on dust collection.
    • E-Commerce product catalog for direct online sales
    • Post-sale shipping and tracking notifications by email or text
    • Post-sale customer satisfaction survey by email

    While technology has changed the way we do business in critical ways, particularly through e-commerce, the need for human connection will never go away. Companies who can master this hybrid model by finding the right balance of human vs. technology touchpoints will be the most successful in the future.

    “I think you’re already doing a great job. Bonnie is always fast to respond to my emails (always within an hour, often within minutes). On top of that she calls me periodically just to check up. She is a true professional and you should consider her a major asset to your company. Without her being my sales person I cannot guarantee that I would be even purchasing from you, there are local guys that I could buy from but I keep coming back to USAF because the service is so good.” – Jake Z.

    Relationship

    The main goal of establishing a relationship between the customer and their sales rep is to create a consistent experience across all touchpoints in the dust collection journey. The sales rep is the direct connection from the company to the customer, and to ensure the process is as smooth and positive as possible the sales rep should be a customer’s first go-to contact for orders, questions, or issues.
    Have you ever called a customer service line for a large retail or phone company? You often find yourself frustrated at being bounced around through several different departments before you even speak to the right person. A direct sales rep for a company keeps an eye on the customer’s entire journey to ensure their experience is positive and to also help mitigate any issues that may cause a bigger problem down the road.

    “Bonnie was incredibly kind, helpful, and persistent (in a good way) with our last order” – Thomas J.

    Educational Dust Collection Resources and Tools

    Expertise, product knowledge, responsiveness, service, and a relationship are all important to the dust collection customer service experience. Providing additional educational resources and tools throughout the purchasing journey is crucial to building trust and long term partnerships. Examples of successful educational resources can include:

    • eBooks that provide in depth analysis on a key topic such as dust collection design
    • Regular blog posts that answer common questions customers ask
    • 3D animated product demo videos
    • Instructional maintenance videos – includes installation, assembly, how-to and troubleshooting advice
    • Engineering drawings of products
    • Detailed spec sheets
    • Project case studies

    Here are the most popular dust collection resources USAF has complied over the years that are most valued by our customers.

    Dust Collection Resources:

  10. 5 Ways a Dust Collection System Improves Plant Efficiency and Saves Money

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    Why you may need a new dust collection system for your application and how a new system can improve operations.

    What is a Dust Collection System?

    Dust collection systems are engineered and designed to filter airborne dust particles and debris that can cause damage to plant equipment, create a hazardous work environment, and negatively impact plant production.

    Installation of a new dust collection system for your facility either by replacing an old unit or expanding your existing operation, can mean an improvement in plant maintenance, waste collection, an increase in product quality, and plant efficiency and production. A new dust collection project can be a long process. Let’s start by exploring the top 5 benefits of a dust collection system.

    Baghouse

    The Top 5 Benefits of a Dust Collection System

    1. Meet Compliance Regulations and Standards
    2. Boost Productivity
    3. Improve Product Quality
    4. Enhance Health and Safety Standards
    5. Preserve Quality of Equipment

    Meeting Compliance Regulations and Standards

    Many industrial industries in the U.S. must comply with strict air pollution control standards . These standards can be set by the Environmental Protection Agency (EPA), National Fire Protection Agency (NFPA), OSHA, or local governing entities such as the AQMD in California.

    All agencies require industrial facilities to maintain and meet air quality standards to ensure a safe and clean environment for their plant, employees, and the surrounding community. To get started on what air permits may be needed for your specific application and location, check out our guide on dust collector air permits.

    The risks of non-compliance are health and safety risks to employees, explosions, failed inspections, and fines from agencies such as the EPA. All companies, large or small, are susceptible to these risks. Cemex, one of the largest producers of cement in the U.S. was fined by the EPA for $1.4 million in 2011 for exposing people to sulfur dioxide and nitrogen oxide emissions. Cemex was also ordered to install pollution controls at its Ohio cement plant as part of the settlement.

    Enhance Production

    An accumulation of dust particles and debris on industrial equipment can interfere with overall plant performance. A dust collection system can collect these dust particles before they can interfere and compromise the health and performance of your manufacturing equipment. When your dust collection system is not performing well either due to extended wear and tear, or because your dust collector is undersized and overextended, your entire operation is at risk. Maintenance issues that go unchecked can result in an unexpected plant shut down that can close down operations for days, weeks or more. It may be difficult to know if your unit is undersized, overextended, or too old. In these cases, consult with a dust collection engineering firm and request an engineering study. By doing so you’ll get recommendations that can minimize the risk of inefficient and poorly working equipment as well as frequent and costly maintenance.

    Improve Product Quality

    For many manufacturing facilities, dust in the air can mean dust on their products. Dust can settle and accumulate on products during the manufacturing process. This has a negative impact on the quality and consistency of finished goods. A dust collector will reduce and effectively capture these dust particles, allowing for product quality to improve and maintain consistency.

    Enhance Health and Safety Standards

    Inhalation of hazardous dust affects human health and a dust collection system is vital to removing these hazards and to keep employees safe. Industries like woodworking, chemicals, iron casting, asphalt, etc. operate facilities that continuously emit hazardous contaminants, debris, gasses, and chemicals. If the hazardous dust particles and debris aren’t removed, employees inhale this polluted air and are at risk for both short-term and long-term health issues. A dust collection system can minimize this hazard. To get a better understanding of the long and short term health risks check out this guide on the health impact of dust collection systems.

    Dust Collection Safety

    Another serious risk for the company is the possibility of a fire or explosion due to an accumulation of combustible dust. There are only four conditions needed for an explosion to occur:

    4 Conditions That Create an Explosion

    • Oxygen
    • Enclosed Space
    • Ignition Source
    • Combustible Dust at the Right Concentration Level

    Do you work in an industry with combustible dust? Some of the industries that are susceptible are:

    Agriculture (grain, flour, sugar, etc.)
    • Wood
    Metals (aluminum, zinc bronze, etc.)
    • Rubber
    Chemicals (coal, sulphur, etc.)
    • Pharmaceuticals
    • Pesticides
    • Plastics
    • And More

    Learn how you can prevent a dust collector explosion with these resources we’ve gathered together here.

    Preserve the Quality and Prolong the Life of Equipment

    When dust particles and debris are created inside a manufacturing facility the contaminated dust settles onto other surfaces such as computer systems and manufacturing equipment. A buildup of dust can be harmful and result in malfunctioning equipment. This can also create unnecessary, frequent, and costly maintenance in order to keep harmful dust and debris from accumulating. With a dust collector system purifying and collecting dust particles, the chances of excessive dust build-up is minimized.

    To find out if you may benefit from an engineering study at your facility, contact a US Air Filtration engineer today. If you’re looking for additional resources on dust collection systems and the buying journey, download our free Dust Collector Purchasing Guide that touches on key topics like dust properties, volume, air-to-cloth-ratio, dust collector styles, low maintenance design features, and more.

    Video: How Much Does a Dust Collector Cost?