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Dust collector of vibrating screen in coal washing plant
Advantages of vibrating screen dust collector in coal washing plant
Coal washing plant vibrating screen dust collector has many advantages such as compact structure, small resistance, simple operation, convenient maintenance, and low operating costs. When dust enters the dust collector, the equipment housing is round, and the tangential entry continues along the housing. Rotating, the special centrifugal force will bring large particles of dust into the ash hopper, and a small part of the dust will rise and adsorb on the surface of the filter bag under the action of negative pressure. When the preset cleaning time is reached, the high-pressure anti-air blower will Automatically open (depending on site conditions), and introduce clean air in the clean room of the upper box of the dust removal equipment for dust removal. And this type of dust removal equipment is not limited by any air source conditions. Unlike pulse dust collectors, which must use compressed air for dust removal, an air compressor and a heater must be equipped, because when the air source contains moisture, Seriously affect the use and life of the pulse valve. Generally, the service life of the pulse valve is one year, and it will be replaced at that time, which greatly increases the operating costs and maintenance costs.
Brief Introduction of Vibrating Screen Dust Collector in Coal Washing Plant
Mechanical back blow flat bag dust collector. It is a circular shell type dust collector with large air volume, good dust removal effect, high dust removal efficiency, reliable operation, convenient maintenance and small footprint.
1. The dust collector is composed of an upper case, a middle case, an ash hopper, a bracket, a filter bag assembly, a back blowing ash cleaning mechanism, an ash discharge valve and the like.
2. Dust collection and filtration system: It is mainly composed of filter bag, bag cage, flower plate assembly, ash bucket and tangential air inlet system.
3. Ash cleaning and ash unloading system: high-pressure fan, rotary backflush pipe, and reduction motor.
4. Electric control system: automatic control system.
The dust collector has a circular casing, in order to shorten the length of the dust collector, and is convenient to arrange, it is provided with an ash hopper.
For the body, we design the strength design with a more unfavorable load combination; it is made of Q235A sheet.
Filter bag specifications φ260 series, the upper end of the filter bag uses rubber pad pressure plate, good sealing performance, easy and fast bag change, each filter bag is provided with a carbon steel bag cage.
The controller adopts two forms of control: automatic and manual interchange.
In order to ensure the efficient and safe operation of the bag filter, each filter also has a filter bag inspection hole.
Dust-containing gas enters the upper space of the filter room in the tangential direction. Under the action of centrifugal force of large particles and condensed dust particles, small particles are swirled off the ash bucket along the wall of the tube and dispersed in the gap between the bags in the filter room. The filter bag guides on the flower plate are collected in a clean room, sucked in by a ventilator, and discharged into the atmosphere.
Features of vibrating screen dust collector in coal washing plant:
1. The flow pattern design of the cyclone dust collector of the shell can play the role of local cyclone and reduce the load of the filter bag. The shape of the cylindrical vault is uniformly stressed.
2. The high-pressure air blower used in the equipment is used to blow back the ash, which is not restricted by the air source conditions in the application. It has fewer wearing parts, simple maintenance and reliable operation, and overcomes the disadvantages of compressed air pulse ash. The anti-blowing effect has a large distance, and a long filter bag can be used to make full use of space and occupy a small area.
3. The trapezoidal flat bag has a large amplitude, which can shake off the accumulated dust with only one vibration, which is beneficial to improve the life of the filter bag.