Cyclone-type and bag-type composite dust remover

Abstract

The invention discloses a cyclone-type and bag-type composite dust remover. The cyclone-type and bag-type composite dust remover comprises a cyclone, a gas inlet pipe, a conical hopper, a star-shapeddust discharging valve I, a tube nest, filter bags and a gas outlet pipe, wherein the gas inlet pipe is arranged on one side of the upper part of the cyclone; the gas inlet pipe is tangentially connected with the cyclone; the conical hopper is arranged on the lower side of the cyclone; the star-shaped dust discharging valve I is arranged on the lower side of the conical hopper; the gas outlet pipeis arranged inside the cyclone; the tube nest is arranged on the upper side of the gas outlet pipe; the tube nest is positioned inside the gas outlet pipe; a plurality of uniformly distributed filterbags are arranged on the lower side of the tube nest; the filter bags are positioned inside the gas outlet pipe. The cyclone-type and bag-type composite dust remover firstly performs cyclone dust removal on dust-containing waste gas through the cyclone so as to remove large-particle dust in the waste gas, and then filters small-particle dust through bag dust removal, so that reduction in the dustremoving efficiency, caused by dust accumulation in the filter bags, is avoided, and the service lives of the filter bags are prolonged; in addition, through the integration of cyclone dust removal and bag dust removal, the structure is compact, the floor area of equipment is reduced and the production cost of an enterprise is lowered.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment, in particular to a cyclone bag composite dust collector. Background technique [0002] At present, in some factories, a large amount of exhaust gas will be generated during the production process, which will cause serious environmental pollution if it is directly discharged into the air, such as dust or impurities, which will cause air pollution and form smog. Therefore, before the airflow enters the air The dust removal and purification process must be carried out. The bag filter is currently a widely used dust removal device; its working principle is: use a filter bag made of textile filter cloth or non-woven felt, and use the filtering effect of the fiber fabric to filter the dust-containing gas. After filtering, when the dusty gas enters the bag filter, the dust with large particles and specific gravity will settle down due to the effect of gravity and fall into the...

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Problems solved by technology

[0002] At present, in some factories, a large amount of waste gas will be generated during the production process, which will cause serious environmental pollution if it is directly discharged into the air, such as dust or impurities, which will cause air pollution and form smog. Therefore, before the airflow enters the air The dust removal and purification process must be carried out. The bag filter is currently a relatively common dust removal device; its working principle is: use a filter bag made of textile filter cloth or non-woven felt, and use the filtering effect of the fiber fabric to filter the dusty gas. After filtering, when the dust-laden gas enters the bag filter, the dust with large particles and specific gravity will settle down due to the effect of gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust will be blocked, making The gas is purified; however, when the dust treatment capacity is large, the dust particles attached to the filter bag accumulate too much, which affects the dust removal efficiency of the exhaust gas and reduces the service life of the filter bag

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