A dust collector and dust collectors manufacturers directory including dust collecting systems, bag houses, jet dust collectors, used dust collectors, wood dust collectors, dust collection, woodworking dust collectors, portable dust collectors, industrial dust collector, industrial dust collectors, cyclone dust collectors, wet dust collector, and electrostatic precipitators.  

Dust Collector Types and Terms

Types of Dust Collectors

• Baghouses are dust collection filters typically constructed from glass fibers or fabric.
  
• Cartridge collectors are compact filters that have a much greater surface area than bags, which increases the airflow, lowers resistance and reduces frequency of cleaning.
  
• Cyclone dust collectors rely on centrifugal force to remove dust from air.
  
• Cyclone separators filter dust particles by spinning the air around in its tank. The motion pins the particles against the walls; they gradually move downward and eventually end up in the collection bin.
  
• Downdraft booths are systems that vent from the top and pull fumes and dust up past the worker’s face.
  
• Downdraft tables or workstations have perforated tabletops and back walls and draw dust and fumes away from the worker’s breathing zone.
  
• Dust collecting systems filter air and remove dust before releasing clean air back into the environment.
  
• Dust collection is the process of filtering air and removing dust.
  
• Electrostatic precipitators collect dust through ionization. As dust-filled gases move through the system’s positively-charged, grounded electrodes called collection plates, discharge electrodes give the dust particles a negative charge, which causes the ionized dust particles to be attracted to and caught by the collection plates.
  
• Fabric collectors, or baghouses, contain filters called fabric bags, which efficiently trap fine particles of dust, while allowing gases to move through the collector.
  
• Inertial separators separate dust particles from gas by changing the direction of gas streams as the streams flow through the collector.
  
• Jet dust collectors use a jet-based cleaning cycle.
  
• Portable dust collectors can be moved from place to place.
  
• Pulse jets use compressed air to force a burst of air down through the fabric bag and expand it violently. When the bag reaches its limit, the dust separates from the bag, and the escaping air carries the dust away from the fabric surface.
  
• Silo vents collect the product in filter bags as the silo is being filled with material. The bags are then shaken to return the valuable product to the silo.
  
• Unit collectors are small dust collecting systems that contain a fan and either a fabric collector or a cyclone.
  
• Ventilators pull a continuous stream of air from the environment, removing airborne dust particles.
  
• Wet scrubbers soak dust-filled gas streams with water and separate the wet dust particles through varying degrees of pressure drops.  

Dust Collector Terms

Air-to-Cloth Ratio – The amount of process gas or air entering the fabric collector (baghouse) divided by the square feet of cloth in the fabric collector.
 
Asbestosis – Form of pneumoconiosis caused by the inhalation of asbestos minerals into the lung, resulting in lung scarring, breathing problems and various forms of cancer.
 
Bleedthrough – Also called “leakthrough,” it is the ability of particles of dust or fumes to migrate through the fabric bag.
 
Cake – Also referred to as “filter cake,” it is the dust buildup occurring on the surface of the filter medium during filtration that often aids in the filtration process.

Certified Energy Manager (CEM) – International professional designation available through training and testing by the Association of Energy Engineers (AEE).

CFC (Chlorofluorocarbon) – Family of chemicals used as refrigerants, being tightly regulated and phased out of production due to stratospheric ozone depletion potential. Examples: R-11, R-12, R-113, R-114, R-115.
 
Coating – The act of dipping the filter medium into a solution in order to lubricate the fibers to reduce self-abrasion.
 
Collection Plates or Tubes – Electrodes in an electrostatic precipitator that attract and collect negatively charged particles of dust.
 
Concentration – The amount of dust that the gas or air contains. Concentration is expressed in grains per cubic foot or pounds per hour.
 
Discharge Electrodes – Electrodes in an electrostatic precipitator that negatively charge dust particles.
 
Electrodes – Conductors or parts of a semiconductor that create an electrical connection with nonmetals or control the movement of electrons.
 
Fabric Bag – Filter in a fabric collector consisting of woven or felt material such as cotton.
 
Fibrogenic Dust – Toxic particles that penetrate the lungs, causing lung dysfunction and scar tissue formation.
 
Filter Media – The porous barrier used in the filtration process to separate the particles from the fluid stream.
 
Flange-to-Flange – The fabric collector equipment from inlet flange to outlet flange.
 
Flex Abrasion – Cloth wear in a fabric bag caused by excessive bending.
 
Hood – A hood-shaped inlet designed to collect contaminated air and direct it into the exhaust dust system of a baghouse.  

Hopper – In dust collecting systems, the area in which the collected dust is stored.
 
Inert Dust – Also called “nuisance dust,” it consists of particles of which quartz and other silicates compose less than one percent.
 
Inhalable Dust – Medium- to large-sized dust particles that do not reach the lower respiratory tract but remain in the upper respiratory system, nose and throat.
 
Mist Collector – A device that sucks up fine particles from fluids like oils and even dry smoke using a three-phase motor. The inner drum rotates and draws the mist particles to the center of the drum where they are forced together and eventually pass through perforations in the drum and back into the machine’s coolant tank, while clean air blows past the motor and back into the outside environment.
 
Multi-Cyclone Separators – Centrifugal separators containing several parallel cyclones that separate dust particles according to texture.  
 
Plate Precipitator – Common high-voltage electrostatic precipitator consisting of flat collection plates along which discharge electrodes lie.
 
Pneumoconiosis – Respiratory ailment caused by excessive inhalation of metallic or mineral dust matter. Pneumoconiosis also includes diseases such as silicosis and asbestosis.
 
Rapper – Part of electrostatic precipitator that transfers dust from the collection plates to the hopper.
 
Respirable Dust – Small dust particles inhaled into the lower regions of the lungs that are responsible for different types of pneumoconiosis.  
 
Silicosis – Incurable, potentially deadly type of pneumoconiosis caused by the inhalation of silica dust particles, resulting in lung diseases such as emphysema. Silicosis progresses even after contact with silicates has ceased.
 
Surface Abrasion – More or less consistent wear on the dirty side of the fabric bag cloth.
 
Total Dust – Consists of all dust particles, whether respirable or inhalable.
 
Tubular Precipitator – High-voltage electrostatic precipitators consisting of cylindrical collection plates that rotate around the discharge electrodes.
 
Vibrator System – Part of an electrostatic precipitator that transfers dust from the collection plates to the hopper.