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The effect of dust on the efficiency of electrostatic precipitators is significant

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The effect of dust on the efficiency of electrostatic precipitators is significant

The dust bag dust collector properties include specific resistance, particle size, true density, scoring, water repellency and hydraulic properties, flammability, explosion, and the like. The electrostatic precipitator should not be used for dust with excessive or excessive resistance. The bag filter is not affected by the dust specific resistance. The concentration and particle size of the dust have a significant effect on the efficiency of the electrostatic precipitator, but the effect on the bag filter. Not obvious; when the dust concentration of the gas is high, the pre-dusting device should be installed before the electrostatic precipitator; the type of the bag filter, the cleaning method and the filtering wind speed depend on the nature of the dust (particle size, scorch).


Wet dust collectors are not suitable for purifying hydrophobic and hydraulic dust: the true density of dust has a significant impact on gravity dust collectors, inertial dust collectors and cyclone dust collectors; for newly attached dust, it is easy to cause dust collector working face cats. Junction or blockage, therefore, it is not advisable to use dry dust removal; when the dust is cleaned and it can produce a flammable or explosive mixture, the wet dust collector should not be used. Use a straight-through low pressure pulse valve. The injection pressure is only 0.2 to 0.4 MPa, the resistance is low, the opening and closing is fast, and the cleaning ability is strong. Due to the good cleaning effect and long cleaning cycle, the energy consumption of the backflush gas is reduced.


The filter bag is cleaned, and after the dust collector is operated for a period of time, the surface of the filter bag adheres and gathers a certain thickness of smoke, and the surface of the bag is removed by controlling the backflushing valve. The filter bag dust collector is located in the negative pressure zone of the induced draft fan, so that the dust removal system works under negative pressure condition, which is beneficial to prolong the service life of the induced draft fan and avoid being worn by the dust. In order to ensure the normal operation of the filter bag, the bypass flue and the valve are also provided for the boiler to be repaired and the furnace is used for ignition and the use of fuel containing more soot to the filter bag is temporarily opened.


The negative pressure back-blowing filter bag dust collector has a simple structure and a small footprint (within 30m2), and can be flexibly designed on site according to production needs. The negative pressure back-blowing filter bag dust collector has strong ability to purify dusty gas and can effectively control pollution. Especially after purification, the smoke dust emission concentration is significantly lower than the national emission standard. It can be applied to small and medium-sized industrial boilers, and the dust removal efficiency can reach 98%. the above. Negative pressure backflush filter bag dust collectors have lower operating costs and lower energy consumption than similar technologies.


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Key words:Filtercartridgedustcollectormanufacturers,Bagfiltermanufacturer,Cyclonedustcollector

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