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Characteristics of special coated dust collector for asphalt plant

February 19,2024

Asphalt plant special coated filter bag, the most important purpose of the coating is to control smoke emission, smoke emission requirements can be selected coated filter bag.

Of course, the film will reduce the air permeability of the bag, if the filtration area is not enough, do not use it, otherwise it will cause a high pressure difference. Coated filter bags are generally used in waste incineration power plants and biomass power plants, and some places that need mobile phones to spill dust precious metals, etc., they have high requirements for soot emissions.

Film dust collector filter bag related information:

1, high surface filtration efficiency. Industrial filter is usually a deep filter, through the construction of a dust layer on the surface of the filter material to complete the filtration, effective filtration time is long (need to filter about 10% of the whole), resistance, low efficiency, incomplete blocking, reverse filtration pressure, large filtration times, high energy consumption, short service life, equipment covers a large area. The dust bag covered by the film, the dust can not pass through the filter material, is the surface filtration, whether it is coarse or fine dust, are deposited on the surface of the filter material, that is, the aperture of the membrane itself blocks the filtered material, there is no initial filtration period, the initial effective filtration, close to 100% of the time in the filter state.

2, low pressure, high throughput continuous operation. The traditional deep filter filter material, once put into use, dust penetrates, the dust layer is established, and the permeability will decrease rapidly. When filtering, the dust accumulated inside causes blockage, which increases the resistance of the pulse dust collector... When the filter material deposited on the surface of the filter material reaches a certain thickness, the filter pressure will always be maintained at a very low level, the air flow rate will always be maintained at a high level, and can work continuously.

Features of coated dust filter bag:

1, close to zero emissions, can meet the most stringent environmental standards.

2, good ash removal performance, can provide higher air exchange, but also through the coating dust bag to reduce the pressure difference.

3, the life of the filter bag is extended, the number of cleaning is reduced, and the cost of equipment maintenance is reduced.

4, improve the gas cloth ratio, use a smaller vacuum cleaner, you can reduce the power consumption when the pressure difference.

5, the investment of coated dust bags and the reduction of operating costs will bring better economic benefits to users.

The dust collector bag relies on establishing a dust layer on the surface of the filter material for effective filtration, which has long effective filtration time, high resistance and low efficiency. The interception is not complete, the loss is also large, the filter blowback pressure is high, the cleaning is frequent, the energy consumption is high, the service life is not long, the equipment covers a large area. The use of coated filter cloth, dust can not penetrate into the filter material, just the surface filtration, whether it is coarse or fine dust, all deposited on the surface of the filter material, that is, by the membrane itself aperture retention of the filter, no initial filtration period, the beginning is effective filtration, nearly 100% of the time in effective filtration.

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