See & Buy Dust Collectors @ http://www.DustMonkey.net
Dust collection systems capture the air contaminated by fine or very fine solid particles of a disintegrated or split material, these dust collectors with baghouses remove the dust matter and release the remaining clean air or gas back into the environment.
Dust collection many times involves a continuous process for dust collecting of any generated dust particles from the source point. Dust collection systems are used to recover valuable materials, as in silo vents, or to remove granular solid pollutants from exhaust gases before venting them back into the atmosphere.
Dust collectors may be of single unit construction, such as cyclone separator dust collectors, or a collection of dust collection devices, such as cyclone dust collectors, baghouse services, or fabric bag dust collecting systems.
Dust is created by grinding, crushing or impacting materials. Dust collectors and Dust Colletion Systems are designed to collect dust as classified by size in three categories: respirable dust collectors, inhalable dust collectors, and total dust collectors.
Respirable dust collectors which help remove dust that consists of particles that are tiny enough to penetrate deep into the lungs and cause illness, while inhalable dust collectors remove dust that is trapped in the nose, throat and upper respiratory tract. Total dust collectors collect eliis a term that encompasses the other two types of dust often requiring dust collecting systems.
Dust can remain in the air for an indefinite period of time without any chemical change other than fracturing. Dust control and dust collection services' including baghouse services are necessary because the presence of excessive dust is hazardous and can cause such things as respiratory diseases, irritation to eyes, ears, nose, throat and skin, dust explosions or fire and damage to equipment.
A very commonly used type of dust collection system is the fabric dust collector or baghouse services. Baghouse services contain filters called fabric bags, usually made of glass fibers or fabric, which trap dust while allowing gases to move through the dust collector.
Dust Cleaning in reverse air baghouses occurs as vibrations from the dust collection system shaft motor shakes the horizontal rods and loosens the dust particles from the dust collection filter. Fresh air flows through the dust filter bags in the opposite direction of the gas stream flow, which creates pressure and loosens the dust from the dust collection system filter.
The most popular types of baghouse services and fabric dust collectors include mechanical shaker dust collectors, reverse air baghouse dust collectors, and pulse jet baghouse dust collectors. In mechanical shaker dust collectors, cylindrical filter bags hang from the top of the baghouse from horizontal rods and are attached to the bottom of the baghouse on a dust collection plate. Reverse air baghouses are compartmentalized to allow airflow to cease in the compartment being cleaned while filtering continues in other dust collector compartments.
Pulse jet baghouse services is a system that collects dust on individual bags supported by metal cages attached to the top of the baghouse. Cleaning and filtering of dust collection systems simultaneously occurs as rapidly moving air flows over the dust filter bags, loosening the dust. Baghouse services are advantageous because they have high dust collector services efficiencies even for very small particles, baghouses can operate on a wide variety of dusts, and are designed to be modular dust collectors and assembled onsite and they have reasonable pressure drops. Unfortunately, baghouse services take up a lot of space, the fabrics of the bags can be harmed by high temperatures or corrosive chemicals and there is an ongoing potential for fire or explosion. Periodic dust collector bag replacement affects the overall cost of baghouse services.
However, the advantages of baghouse services far outweigh the disadvantages of dust collector baghouse services. http://www.DustMonkey.net sells many models and types of dust collectors, filters, fans, hoses, extraction arms, cyclones, separators, spray-booths, silos, downdraft tables, portable dust collectors and many other types of dust control equipment.
Popular dust collectors include the cyclone separator dust collector, a simple tank with no moving parts that filters fine particles and dust from the air by centrifugal means. Other popular dust collectors include electrostatic precipitator dust collectors, involving a dust collector fan that pushes or pulls dust laden gases through the box and directs them into lanes formed by dust collection system plates or dust collection tubes.
Wet scrubber dust collectors and dust collecting systems literally wash the dust out of the air, releasing a fine spray of droplets that capture dust particles and bring them down. The appropriate selection of a dust collector depends on the industry in which the dust collecting system will be used, the amount of dust present within the environment, the size and density of dust particles, the level of dust collection efficiency required of dust collectors and the cost of dust collecting equipment and dust collection systems maintenance.
Types of Industrial Dust Collectors, and Dust Collecting Systems:
Cartridge dust 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 separators used in many dust collectors and dust collection services, filter dust particles by spinning the air around in its tank. The motion pins the dust particles against the walls; they gradually move downward and eventually end up in the dust collection bin.
Downdraft booths are dust collectors and dust collector systems that vent from the top and pull fumes and dust up past the worker’s face.
Downdraft tables or dust collection workstations have perforated tabletops and back walls and draw dust and fumes away from the worker’s breathing zone.
Electrostatic precipitators are dust collectors that collect dust through ionization. As dust-filled gases move through the system’s positively-charged, grounded electrodes called dust 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 dust collection plates.
Fabric Dust Collectors, or baghouses, are dust containers that contain dust collection filters called fabric bags (baghouses), which efficiently trap fine particles of dust, while allowing gases to move through dust collectors.
Inertial separators separate dust particles from gas by changing the direction of gas streams as the streams flow through dust collectors. 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 dust collection 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 dust collectors are small dust collecting systems that contain a fan and either fabric dust collectors or cyclone dust collectors. Ventilators pull a continuous stream of air from the environment, these dust collectors remove airborne dust particles. Wet scrubbers soak dust-filled gas streams with water and separate the wet dust particles through varying degrees of pressure drops.
Common Dust Collectors Terms:
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.
