Dust remover with waste heat recovery

Abstract

The invention discloses a dust remover with waste heat recovery and belongs to the technical field of dust removal. The dust remover comprises a dedusting box body, a base, a dust hopper, a cloth bagand a compressed air bag. The cloth bag type dust collector is used for uninterruptedly carrying out ash removal treatment on a cloth bag. The compressed air bag and an electromagnetic pulse valve arearranged in the dust remover; the electromagnetic pulse valve controls the paint spraying frequency of the compressed air bag; when compressed gas is sprayed out of the compressed gas bag, a moisturecondensation phenomenon easily occurs; when dust air containing heat is purified by the dust remover, according to the invention, heat in the air containing heat is collected by a heat exchange device, the heat is transferred to the compressed air bag to heat the compressed air bag, so that the temperature of air in the compressed air bag is increased, condensed water cannot be generated when thecompressed air is sprayed out, the phenomenon of internal condensation is effectively avoided, the cloth bag is prevented from being soaked and blocked, and the working efficiency is improved.

Description

Technical field [0001] The invention belongs to the technical field of dust removal, and in particular relates to a dust remover for recovering waste heat. Background technique [0002] The bag filter is a dry dust filter device, which is suitable for collecting small, dry and non-fibrous dust. The bag is made of woven filter cloth or non-woven felt, and uses the filtering effect of fiber fabric to carry out dust-containing gas. Filtration, bag dust removal, because of its high dust removal efficiency, it can collect fine dust with a particle size greater than 0.3 microns. The dust removal efficiency can reach more than 99%. It is also flexible in use, simple in structure, stable in operation, low in initial investment, convenient in maintenance, and no sewage The advantages of treatment or mud treatment are widely used in the dust removal of biomass boiler exhaust pipes. However, in actual use, in order to facilitate the cleaning of the surface of the cloth bag, a compressed air...

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Problems solved by technology

[0002] The bag filter is a dry dust filter device, which is suitable for collecting fine, dry and non-fibrous dust. The bag is made of textile filter cloth or non-woven felt, and the dust-containing gas is filtered by the filter function of the fiber fabric. Filtration and bag dust removal have high dust removal efficiency, can capture fine dust with a particle size greater than 0.3 microns, and the dust removal efficiency can reach more than 99%. It is flexible in use, simple in structure, stable in operation, low in initial investment, convenient in maintenance, and does not have sewage It is widely used in the dust removal of biomass boiler flue pipe due to its advantages such as processing or mud treatment. However, in actual use, in order to facilitate the cleaning of the surface of the bag, a compressed air bag and The electromagnetic pulse valve uses the air stored in the compressed air bag to clean the bag, and the electromagnetic pulse valve controls the spray interval of the compressed air bag. As we all know, when the compressed air is released to the outside of the compressed air bag (standard atmospheric pressure), due to The volume of the air increases instantly, and the compressed air will absorb a large amount of heat when it does work on the outside, and the phenomenon of water vapor condensation is very easy to occur, and the generated water drops on the bag, which will easily cause the bag to be blocked, affecting the dust removal efficiency of the dust collector

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