Closed cloth-bag-type low-pressure ash-removing dust remover

Abstract

The invention discloses a closed cloth-bag-type low-pressure ash-removing dust remover, and relates to an industrial dust remover. The dust remover comprises a flexible pipe (1), an ash removing cover (2), a trolley (3), a reducer (4), filtering bags (5) and air purifying chambers (6). A dust-remover purifying sub-chamber in a dust-remover ash-removing device is of a modular structure, the air purifying chambers are divided into a plurality of closed units, an outlet of a boiler induced-draft fan is connected to one end of a dust-remover cylinder, and the dust-remover cylinder is horizontally supported on a support; an ash removing system is connected to a motor and the reducer through a chain, and is connected with the ash removing cover and the trolley, and the ash removing cover and the trolley are arranged in the arraying direction ofan inlet and an outlet, and are located on a rail in a straight-line-reciprocating-moving-type mode; the filtering bags are hung to a ceiling in line and in row, and are supported through bag cages; low-pressure air generated by the outlet of the boiler induced-draft fan or other low-pressure air is subjected to converse purging through the dust remover, the closing aim and the leak-free aim are achieved, the spraying-blowing effect is guaranteed, the filtering bags are not damaged, materials are saved, and the service life of a machine is prolonged.

Description

Technical field [0001] The invention relates to an industrial dust collector, in particular to a closed bag-type low-pressure dust cleaning dust collector. Background technique [0002] 1. On the historical background of the development of dust collectors in thermal power plants [0003] The development process of dust collectors in thermal power plants is roughly summarized as a process from dry cyclone dust collector-multi-tube cyclone dust collector-granite water film dust collector-early bag filter-electrostatic precipitator. In the early application of the boiler bag filter, due to the poor quality of the filter bag, a key accessory part of the filter, there is a lack of materials at home and abroad that are reasonably priced, resistant to high temperature, corrosion, and suitable for dust removal from coal-fired boiler flue gas. Therefore, the domestic coal-fired boiler flue gas dust removal generally used electric precipitators. However, with the increasing national enviro...

AI Technical Summary

Problems solved by technology

[0012] d. For the line-jet pulse bag filter, because the nozzle is installed above the filter bag, it is inconvenient to replace the filter bag and bag cage.

[0013] e. Because the line-jet pulse bag dust collector adopts circular filter bags, the volume is generally large; although the rotary spray dust collector uses flat filter bags, the overall volume is also relatively large because the dust collector adopts a circular arrangement.

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