Chemical dust hazards
Chemical manufacturers create the adhesives, foams, plastics and other raw materials that are used to make most consumable products. Many use batch mixing and other processes that create dangerous dusts. When operators handle these materials or convey or dump them into processing equipment, the dust becomes airborne and endangers air quality.
Airborne chemical dusts can be hazardous to workers, equipment, manufacturing plants, and the environment. They can be harmful as well as combustible. In addition, airborne dusts can cross-contaminate products, putting the end users of those products at risk and exposing manufacturers to liabilities.
Industrial Dust Collectors Contain Dangerous Chemical Dusts
Local health and safety authorities recommend that facilities maintain workplace air quality through “engineering and work practice controls” where feasible. Dust collection systems are the most cost-effective way to improve air quality in a chemical manufacturing or processing facility. They work around the clock, using advanced filtration technology to safely capture and contain airborne dust and contaminants.
Camfil APC’s premium-quality dust collectors cost-effectively collect many types of chemical dust, including harmful dusts, combustible dusts, cross contaminant dusts, and nuisance dust. They ensure that all employees can work safely in facilities where harmful chemical dusts are present. They:
- Save time, money and energy on dust collection
- Protect people, property and environment from dust hazards
- Prevent cross contamination
- Satisfy compliance with the local health and safety regulations and ATEX standards
Chemical dusts are dangerous in the workplace when they have high concentrations of elements like crystalline silica that are harmful in the body at certain concentrations.
Some dusts simply react badly with skin and eyes. Other chemical dusts are fine particles that can travel deep into the body, damaging the kidneys, lungs, brain, intestines and prostate.
For these reasons, the local health and safety authorities regulate harmful dusts, and failure to comply can lead to serious fines and other legal problems. For example:
- Worker exposure to mineral elements like silica dust causes respiratory problems from chronic bronchitis to lung cancer.
- Worker exposure to metallic elements, such as cadmium, beryllium, arsenic, chromium and lead causes neurological, gastrointestinal and reproductive damage.
Therefore the authorities have established permissible exposure limits (PEL) to chemical substances that endanger workers. Hereinafter some examples of the PELs for various chemical dusts:
- Cadmium: 5 µg/m3
- Zinc oxide: 15 mg/m3
- Chromium: 5 µg/m3
- Iron oxide: 15 mg/m3
- Cobalt: 1 mg/m3
All Camfil APC dust collectors safely contain those harmful dusts.
Many chemical dusts also qualify as combustible dusts, including ascorbic acid, calcium acetate, dextrin, lactose and sodium ascorbate. These chemical dusts can accumulate on surfaces, where any spark or flame can ignite them, causing a fire or explosion. Common ignition sources are kilns or welding flame, but it can even be a lit match or cigarette.
Combustible dust explosions threaten workers and capital assets like buildings and equipment. A powerful dust explosion can injure and kill plant workers and destroy buildings and equipment.
Dust collectors minimize the amount of combustible dust that can collect on floors and other surfaces, and they contain chemical dust in one area. But the dust collectors themselves can be a fire or explosion hazard if they are designed incorrectly or not equipped with controls that protect from deflagration and contain explosions. These controls include fire retardant cartridges, sprinkler connections, explosion vents, suppression systems, and backdraft dampers.
All Camfil APC dust collectors safely contain combustible dusts and are equipped with deflagration controls.
Harmful dust can also cross-contaminate other chemical materials in the plant, which can reduce product quality and safety. For this reason, it is preferable to capture chemical fumes or dust at their source to prevent the dust from expanding throughout the plant. This is accomplished by incorporating a hood or extraction arm into the chemical process machinery. Source capture is extremely effective, and it requires the least energy and capital investment.
However it is captured, dust and fumes should be isolated from the rest of the facility and contained in a specific area. For example, a portioned area can be kept under negative pressure. The extracted air is either drawn directly into a local collector or ducted to a dust or mist collector located remotely. In some cases, the clean exhaust air is being used to help push the airborne contaminants in to the extraction capture hood / duct system. This is known as a push-pull system.
A chemical manufacturing facility may also require special options or accessories to improve the safety and reliability of the system. Bag-in/bag-out filters and collection drum options can be used to limit exposure and cross-contamination of collected material when performing filter and dust removal maintenance. Additional features such as duct and equipment clean-out doors, stainless steel construction, safety after filters (HEPA) and FDA compliant paint are also commonly utilized with the air filtration unit based on contaminant properties.
All Camfil APC dust collectors safely contain cross-contaminants.
Airborne dust can also be a major housekeeping problem because it eventually settles on floors and surfaces. A dirty-looking facility can hurt your brand and make a negative impression on customers, potential employees and other visitors. Not only is the dust a nuisance to keep off floors and overhangs, but it can accumulate on equipment and electronics, causing them to malfunction or fail.
All Camfil APC dust collectors safely contain nuisance dusts.
Selecting the appropriate equipment can be a daunting task, but Camfil APC dust collection experts can help you—particularly through the critical design phase. We help assess your system, applications and physical space. We then determine the best solutions for meeting your production goals while keeping your workers safe and your operation in compliance. The first step is identifying the specific chemical makeup of your airborne contaminants. Our dust testing services identify properties like density, particle size, and moisture content, helping you make more informed decisions on equipment, filter cartridges, and engineered controls. Next, we examine the sources of dust at your facility, the quantity of dust generated, your run times, and how sensitive your operation is to production downtime. We also look at your space constraints and options for placement of the dust collector.
We work with you to answer questions like:
- What type of cartridge and filter media is best?
- Is an intermittent-duty, continuous-duty or variable frequency collector best?
- Are explosion protection controls required?
- Which style and size configuration are best?
- Will the dust collector use compressed air?
The true cost of a dust collector goes far beyond your investment in capital equipment of the system components themselves and ductwork. We help you select the best dust collector systems for your application, with the lowest energy and operating expenses.
This means calculating the total cost of your dust collection system, taking into consideration the costs for energy, replacement filters and downtime for maintenance. We have a rig dedicated to ANSI/ASHRAE Standard 199 testing to give you real world, apples-to-apples comparison data on our dust collectors. Data like emissions, pressure drop, compressed air usage, energy consumption, and emission readings shows you the real costs to operate the collector over time and make accurate system comparisons.
Quad Pulse Package – Plug & play dust collector to extract chemical processes with smaller air volumes
The Quad Pulse Package family cleans it´s filters in four segments, one at a time so that they are continually cleaned without interrupting airflow. The system is available with one or two filter cartridges and internal/external fan option. Its compact design features easy installation, bag-in/bag-out safe-change process for the primary/secondary filters and the dust discharge. All units are explosion pressure shock resistant without the need for additional protection systems.
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Application-specific extraction solutions - we will be happy to advise you!
Gold Series X-Flo – Industrial dust collector to improve air quality in chemical manufacturing facilities
The Gold Series X-Flo dust collector (GSX) performs well in applications where dry materials are batch mixed, conveyed and processes. The GSX offers high performance, a modular design, ease of service, and an optional bag-in, bag-out filter change out. Constructed from heavy-duty carbon steel to meet the demands of your application, the Gold Series has unparalleled strength and life compared to the competition. Coupled with Gold Cone™ X-Flo (GCX) vertical cartridge technology, the GSX offers superior pulsing of high-loading dust while simultaneously utilizing the smallest floor space of any dust collector available today.
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Gold Series High Vacuum Dust Collector
The Gold Series High Vacuum (GSHV) can be used in applications up to 17 IN HG or 8 PSI positive pressure. Common applications include central vacuum systems, positive or negative product receivers and high-pressure bin vents.
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