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A dust collector is a system used to enhance the quality of air released from industrial and commercial processes by collecting dust and other impurities from air or gas. Designed to handle high-volume dust loads, a dust collector system consists of a blower, dust filter, a filter-cleaning system, and a dust receptacle or dust removal system.
Dust-laden gas or air enters the baghouse through hoppers and is directed into the baghouse compartment. The gas is drawn through the bags, either on the inside or the outside depending on cleaning method, and a layer of dust accumulates on the filter media surface until air can no longer move through it.
Materials can be added either manually or automatically to the top of a hopper. For dust collection, it enters the hopper from a collection device. For example, baghouses are shaken or blown with compressed air to release caked-on dust from the bag. Precipitators use a rapping system to release the dirt. The crumbling dust falls into the hopper.
The accumulation of uncontrolled coal dust in a workplace is a dangerous situation that needs to be eliminated. The control of coal dust can be improved by implementing the use of dust-approved vacuums, dust collection systems, methods to reduce fugitive coal dust, and following general housekeeping procedures. [2]
A blast gate is a gate valve used to focus a dust collection system's vacuum pressure for maximum dust (or other material) extraction at the desired location. Blast gates are positioned near individual pieces of machinery and operate by being closed by default, blocking air flow.
Multiple-cyclone separators remove more dust than single cyclone separators because the individual cyclones have a greater length and smaller diameter. The longer length provides longer residence time while the smaller diameter creates greater centrifugal force. These two factors result in better separation of dust particulates.
Most venturi systems operate with an L/G ratio of 0.4 to 1.3 L/m 3 (3 to 10 gal/1000 ft 3). [4] L/G ratios less than 0.4 L/m 3 (3 gal/1000 ft 3) are usually not sufficient to cover the throat, and adding more than 1.3 L/m 3 (10 gal/1000 ft 3) does not usually significantly improve particle collection efficiency.
a funnel, shutter and collimator to control dust collection; a sample handling stage to collect and manipulate collected dust; an atomic force microscope. Dust collection is performed when close to the comet by opening the shutter and placing one of 61 targets directly behind the funnel. A collimator ensures that only one target at a time can ...