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Dust Collection and Valves Blog

Which 4 major items can cause a dust collection system to underperform?

Posted by Tom Hobson on Jun 15, 2017 9:15:00 AM

Dust collection systems consist of four major items.  All of them are important and can cause a dust collection system to underperform.  The major items are the exhaust fan, dust collector, ductwork, and hoods/pickup points.   While the exhaust fan provides the motive power to collect the dusty air, its performance is affected by each of the components.  This means that if one of the other components isn’t operating as designed, the whole system will be affected.  Ductwork is usually by far the largest component and often the most overlooked.  Depending on the size of your system, the ductwork can span hundreds of feet and have dozens of side streams.  The ductwork is like railroad tracks, it moves the dusty air from one place to another.

Often times, additional lines will be added to a dust collector system after installation.  Without proper evaluation of the system, this could negatively affect the performance of the whole system.  This means that just because the dust collector system was operating correctly before, it might not after an additional pickup point or hood is added.  What happens is that when you add additional pickup points, you change the balancing of the system.  This could change the airflow to each and every hood and pickup point in the system, so while the system was originally adequately venting an area, it might not after a change.

A few things can be done to address this, such as changing fan speed, adding dampers, modifying ductwork, etc.  The main thing you need to keep in mind is that if you slow the airflow through ductwork too much, you begin to build up dust within the line.  This will further restrict your airflow and become a fire / explosion hazard.

So when you are looking at changing your dust collector system, review the system parameters or hire someone to review so that you do not cause additional issues.

Learn about the questions you should be asking to make sure you're buying the right dust collector for your application. Get your whitepaper now.

 Top 5 Questions To Ask When Considering A Cyclone Dust Collector

If you are having operational issues on your dust collection system, contact Dr. Dust at 440-543-7400 or dc@dustcollectorhq.com.  He is available to help you problem solve your dust collection issues.

 

 


 

 

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Topics: dust collector, Cyclone Pre-Filter, Dr. Dust, Product Recovery, exhaust fan, Ductwork

Aerodyne At Ceramics Expo 2017

Posted by Tom Hobson on May 25, 2017 4:01:04 PM

Now in its third year, Ceramics Expo is the world's largest annual free-to-attend expo for the advanced ceramic and glass community.

The massively expanded event stands as a unique showcase for all the latest start materials, industrial equipment, technical ceramic components, processing expertise, analysis and testing devices, thermal technologies and precision finishing systems that keep this sector at the forefront of manufacturing advances.

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Due to its tightly focused approach and by maintaining a close relationship with all core stakeholders, Ceramics Expo guarantees the participation of respected and innovative suppliers. As the premier US ceramics exhibition, it draws in thousands of genuine decision makers and aims to set the agenda for ceramics manufacturing and applications.

Aerodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or verticaly, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves.

Aerodyne Environmental's industrial dust collection products feature unique, - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
Aerodyne Environmental's industrial dust collection products feature unique, - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
Aerodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or vertically, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves. - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
erodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or vertically, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves. - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
Aerodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or vertically, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves. - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
Aerodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or vertically, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves. - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf
Aerodyne Environmental's industrial dust collection products feature unique, low-maintenance designs that will enhance the performance of your processing operations. Our industrial dust collectors, which work horizontally or vertically, can extend the life of your baghouse or cartridge filters. And, Aerodyne offers a variety of durable material handling valves for every application, including the Vacu-Valve Trickle Valve System, a cost-effective solution to rotary valves. - See more at: http://www.dustcollectorhq.com/#sthash.ioeZwJ15.dpuf

 

 

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Topics: Cyclone Pre-Filter, trickle valve, Ceramics Expo 2017, vacu-valve

Dust Collection Systems: Product Recovery and Cyclone Pre-filters

Posted by Tom Hobson on May 25, 2017 1:50:57 PM

If you are working with a high value material or product, then you should investigate using a cyclone ahead of your baghouse or cartridge collector.  The cyclone will allow you to recover the dust without contamination from the filters.  The filters in a baghouse or cartridge collector use a dust layer built up on the filters to collect the dust from the airstream.  During the process of filter cleaning, dust from this layer is dislodged and falls into the hopper.  Any particulate from prior batches can cause contamination of the dust.

Learn More About Using a Cyclone as a   Pre-Filter for Your Baghouse

A cyclone, on the other hand, collects the dust and deposits it in the hopper continuously.  There is very little dust buildup inside of a cyclone.  This minimizes the chances of contamination from prior batches.  Since there aren’t any filters, a cyclone can be washed or wiped out to remove the prior batch particles.

One area where this could be very helpful is pigment collection.  A baghouse or cartridge collector filter will collect the pigment and contaminate the color.  This requires the filters to be changed every time a new color is produced.  So the system will require a filter set for every different color produced.  Conversely, the cyclone can be washed out or wiped down between colors.  This saves in both maintenance time and spare parts costs.Dr Dust Evaluation


 

 

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Topics: Cyclone Pre-Filter, Dr. Dust, Product Recovery

Dust Collection Systems: Dust Hazard Analysis (DHA) and NFPA 652

Posted by Tom Hobson on May 9, 2017 8:15:00 AM

With the release of NFPA 652 and 654, manufacturers that create dust in their processes are required to conduct a Dust Hazard Analysis if the dust is explosive.  NFPA 652 requires this to be done by 9/7/2018 but NFPA 654 has extended it 5 years.  The Dust Hazard Analysis is retroactive, so all manufacturers are required, no one is grandfathered in.

The DHA should be as simple or as complex as the process and needs to be documented for OSHA.  The main purpose of the DHA is to educate the owner and operators on the true hazards and dangers they are facing with their dust, and to make sure they take the proper precautions with it.  The DHA is there as a tool to prevent loss of life, equipment, production time, and capital.

Dr. Dust will be addressing the DHA further in future Blogs!  Stay tuned.

Dr Dust Evaluation

 

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Topics: Dr. Dust, NFPA 652, DHA

Dust Collection Systems: 5 Best Solutions of Dust Collection Airlocks

Posted by Tom Hobson on Apr 24, 2017 8:30:00 AM

When you are specifying your dust collector, don’t just settle on a rotary valve.  There are other airlocks that might be better suited for your application.  Other airlocks include the double dump (flap) valve, trickle valve, and knife gate.  Not to mention just bypassing an airlock totally and connecting a hopper directly to the bottom of the dust collector.

Dr Dust Evaluation

The following will help you figure out which is the best solution:

  1. Rotary valve – Use this if you have combustible dust. However, you will have constant air leakage across the valve.
  2. Double dump valve – Use this if you want to minimize air leakage. The Double Dump works great with big, chunky material or if you’re worried the material may wrap around a rotary valve rotor.
  3. Trickle valve – Use to save money and time. Requires a vacuum and usually a fine, free-flowing particle to work effectively.  It’s low cost and easy maintenance makes it very attractive when suitable.
  4. Knife Gates – Used for periodic emptying of the dust collector hopper into another container. Knife gates come in a variety of design (knife gate, slide gate, orifice type, etc.).  Depending on the design, they can provide an airtight seal or not.  However when open, the airlock is lost.
  5. Direct couple to a hopper – Used with low dust loading and could require the dust collector to be turned off during changing of the hopper. Also be-careful to take into account the lower hopper when used on a combustible dust application.

When you are looking for an airlock, don’t just automatically use a rotary valve.  Doing so may cause operational and maintenance issues in the future.  It could also cost you more money.  If you would like help in picking the best airlock, don’t hesitate to contact Dr. Dust at 440-543-7400 or dc@dustcollectorhq.com. He is available to help you to solve your dust collection issues.

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Topics: knife gate valve, rotary valves, double dump valve, trickle valve, direct couple to hopper

Dust Collection Systems: Rotary Valves and NFPA-69

Posted by Tom Hobson on Apr 10, 2017 8:30:00 AM

When you have a combustible dust, not only does your dust collector require to be protected against a deflagration, but the airlock must contain the event.  NFPA-69 allows the use of a rotary valve as long as the following:

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Topics: dust collector, rotary valves, NFPA-69, combustible dust, deflagration

Dust Collection Systems: Instrumentation 101 - Differential Pressure Gages

Posted by Tom Hobson on Mar 20, 2017 9:01:00 AM

A dust collection system is much more than just the dust collector (ex. Cyclone, baghouse, cartridge collector, wet scrubber, etc.).  It constitutes the exhaust fan, hoods, instrumentation and interconnecting ductwork.  If any of these components are improperly sized or operating, the whole system can fail in its primary objective, dust collection.

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Topics: dust, gpc, Pressure Gages, Sudden change in airflow

Dust Collection Systems: Fan Wheels 101

Posted by Tom Hobson on Mar 8, 2017 9:01:00 AM

A dust collection system is much more than just the dust collector (ex. Cyclone, baghouse, cartridge collector, wet scrubber, etc.).  It constitutes the exhaust fan, hoods, instrumentation and interconnecting ductwork.  If any of these components are improperly sized or operating, the whole system can fail in its primary objective, dust collection.

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Topics: dust, gpc, Fan Wheels, Fan Impellers

Case Study: Compact Cyclone Key Component in Tablet Dust Reclamation? GPC Helps Keep Pharmaceutical Process in Check with FDA

Posted by Tom Hobson on Feb 20, 2017 8:30:00 AM

Aerodyne Environmental, the industry’s leading manufacturer of industrial cyclonic dust collectors and dust collection valves, recently assisted in a pharmaceutical application. A prominent US pharmaceutical company was creating a dust collection system for the facility where a variety of drugs are manufactured. The company plans on using a cartridge collector as part of the tablet manufacturing process. Because this company is regulated by the FDA, every gram of product must be accounted for, even the dust. The active pharmaceutical ingredients (APIs) that are created are extremely fine and flow like water. The cartridge collector would be able to collect the particulate in the process, but much of it would get stuck in the filters and would be hard to account for. Read more about this case study.

 

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Topics: pharmaceutical, compact cyclone, tablet dust reclamation

Aerodyne Cyclones help with Pharmaceutical Product Reconciliation

Posted by Tom Hobson on Feb 7, 2017 9:00:00 AM

Do you need to provide product reconciliation or are you spending too much time gathering the product from your dust collector?

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Topics: pharmaceutical, EZBIBO, compact cyclone

Aerodyne Environmental's blog about dust collection and valves.

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