Wet-type cloth bag deep dedusting system

Abstract

The invention specifically discloses a wet bag deep dust removal system, which includes a wet dust removal system and a cleaning and alkaline regeneration system. The entry end of the bag I of the wet dust removal system is connected to the outlet end of the bag II of the cleaning and alkaline regeneration system. The sending end of the cloth bag I of the wet dust removal system is connected to the inlet end of the cloth bag of the cleaning and alkaline regeneration system, and the cloth bag I and the cloth bag II form a closed system. The beneficial effects of the present invention are: 1) It can simultaneously remove fine particles, gypsum particles, further desulfurize and other functions. 2) Compared with the dry bag, the dust removal effect of the wet bag is better, and it can deeply remove fine particles (PM2.5), which adapts to the general trend of national environmental protection. 3) An online maintenance and replacement section can be set between the cleaning tank and the alkaline regeneration tank to perform non-stop maintenance and partial bag replacement.

Description

technical field [0001] The invention relates to a wet bag deep dust removal system, in particular to a deep dust removal system for power plant boilers, industrial boilers, kilns and other process equipment. Background technique [0002] Since 2012, different "smog" phenomena have been staged in various parts of the country, and the popularity of the word "burst" has continued to rise. Among the ten measures for the prevention and control of air pollution deployed by the State Council, speeding up the transformation of dust removal in key industries such as electric power, steel, and cement has been placed in an important position. The "Twelfth Five-Year Plan" for the Prevention and Control of Air Pollution in Key Areas proposes that by 2015, industrial smoke and dust emissions in key areas should be reduced by 10%. There is a tendency for the dust emission standard to be further reduced. [0003] At present, there are mainly three kinds of dust removal methods: electric ...

AI Technical Summary

Problems solved by technology

The above-mentioned dust removal methods can meet the current emission requirements, but due to technical limitations, it is difficult to further reduce the dust concentration emitted

[0004] As shown in the traditional bag type dust collector, the dust collector mainly has the following defects: 1) The bag is completely located inside the dust collector, and maintenance and replacement need to be shut down, which affects economic benefits; 2) The existing gas blowing method and wet soot blowing method are used When cleaning the dust accumulated on the cloth bag, there is a situation that the dust removal time mainly depends on experience. If the dust removal time is too short, it is easy to cause incomplete dust removal and poor dust removal effect. If the dust removal time is too long, it is easy to cause damage to the cloth bag.

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