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About Dust Collectors
Dust collector systems capture air contaminated by
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 and gas back into the environment. Dust collection
services involve a continuous process for dust collecting of any process-generated
dust particles from the source point. An industrial dust collector is
used to recover valuable material, as in silo vents, or to remove granular
solid pollutants from exhaust gases before venting them back into the
atmosphere. IQS Directory profiles dust collector suppliers and companies
involved in the manufacture of industrial dust collector systems that
are often used in conjunction with air pollution control equipment to
improve air quality. A dust collector 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 generated by grinding, crushing or impacting material. Dust collectors
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 help remove dust that consists
of particles that are tiny enough to penetrate deep into the lungs, 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 manufacturing equipment.
A commonly used type of industrial dust collection system is the fabric
dust collector or baghouse services. Baghouse services contain filters
called fabric bags, typically made of glass fibers or fabric, which trap
dust while allowing gases to move through the dust collector. 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. 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. 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 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 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.
Dust collector manufacturers product several types of dust collectors,
dust collection services, baghouse services, dust masks and other types
of dust collection systems. 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. The particles of dust are provided with a negative
charge and are attracted to the positively grounded dust collection plates.
A virbrator dust collector system of dust collection or rapper aids the
transport of the dust to the dust collection hopper. 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.
Featured
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Types of Dust Collectors
- are dust collection filters typically constructed from glass fibers or fabric.
- are compact filters that have
a much greater surface area than bags, which increases the airflow,
lowers resistance and reduces frequency of cleaning.
- rely on centrifugal force to remove dust from air.
- 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.
- are systems that vent from the
top and pull fumes and dust up past the worker’s face.
- or workstations have perforated tabletops and back walls
and draw dust and fumes away from the worker’s breathing
zone.
- filter air and remove dust before releasing clean air back into the environment.
- is
the process of filtering air and removing dust.
-
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.
- ,
or baghouses, contain filters called fabric bags, which efficiently
trap fine particles of dust, while allowing gases to move through the
collector.
- separate
dust particles from gas by changing the direction of gas streams
as the streams flow through the collector.
- use a jet-based cleaning cycle.
- can be moved from place to place.
- 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.
- 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.
-
are small dust collecting systems that contain a fan and either a fabric
collector or a cyclone.
- pull a continuous
stream of air from the environment, removing airborne dust
particles.
- soak dust-filled
gas streams with water and separate the wet dust particles
through varying degrees of pressure drops.
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