Electric-bag composite dust collector

Abstract

The invention discloses an electric-bag composite dust collector. The electric-bag composite dust collector comprises a composite dust collecting region in a housing, wherein the composite dust collecting region comprises an electric bag dust collecting region and a first electric field dust collecting region; the electric bag dust collecting region comprises a filter bag region and a second electric field dust collecting region; a filter bag dust collecting device is arranged in the filter bag region, and located on the upper end of the electric bag dust collecting region; an electric field dust collecting device is arranged in the second electric field dust collecting region, which is communicated with the filter bag region and located on the lower end of the electric bag dust collecting region; and an electric field dust collecting device is arranged in the first electric field dust collecting region, which is communicated with the electric bag dust collecting region and located onthe front end of the electric bag dust collecting region. In the electric-bag composite dust collector provided by the invention, the second electric field dust collecting region is arranged on the lower end of the electric bag dust collecting region, so that the dust can be recharged when a portion of smoke flows from the first electric field dust collecting region to the second electric field dust collecting region, thereby enhancing the dust charging strength. Additionally, the second electric field dust collecting region can effectively collect dust dropping from the filter bag region when the dust is removed, thereby reducing secondary dust emission, prolonging dust removal period, prolonging the service life of the filter bag, reducing the whole dust removing resistance, and improving the overall performance of the dust collector.

Description

technical field [0001] The invention relates to an industrial dust collector, which is used for purifying pollutants discharged in industrial production processes such as thermal power, cement, and steel, and in particular to an electric bag composite dust collector. Background technique [0002] At present, the contradiction between economic and social development and resource and environmental constraints has become increasingly prominent, and environmental protection is facing increasingly severe challenges. One of the main factors causing air pollution is that in the process of thermal power, cement, steel and other industrial production, a large amount of dust generated by the combustion of coal and other materials is directly or indirectly discharged into the atmosphere. Therefore, purification of pollutants discharged by thermal power, cement, steel and other industries is one of the main measures to prevent and control air pollution and improve environmental quality....

AI Technical Summary

Problems solved by technology

Among them, the electrostatic precipitator has the advantages of large amount of flue gas treatment and low running resistance, but its dust removal efficiency is easily fluctuated by the influence of the dust characteristics of the flue gas; the bag filter has a low emission concentration and is not affected by the dust characteristics, but there are Disadvantages such as large system resistance, high energy consumption, and heavy operation and maintenance workload

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