Carbon fiber electrostatic actuation type dust-removing filter bag and preparation method thereof

Abstract

The invention discloses a carbon fiber electrostatic actuation type dust-removing filter bag and a preparation method thereof. The carbon fiber electrostatic actuation type dust-removing filter bag comprises a bag head, a bag body and a bag bottom, wherein both the bag body and the bag bottom are made of a carbon fiber electrostatic actuation type filtering material obtained by mixing carbon fibers and aramid fibers, the bag head is made of a purely-aramid fiber filtering material; the carbon fiber electrostatic actuation type filtering material comprises a conductive base fabric, a windward nonwoven fabric layer and a leeward nonwoven layer; the conductive base fabric is woven by stainless steel fiber yarns and aramid yarns, the windward nonwoven fabric layer and the leeward nonwoven layer cover the upper surface and the lower surface of the conductive base fabric, respectively, the windward nonwoven fabric layer is made by mixing and needling carbon fibers and aramid fibers; a copper air hole which is grounded and forms a conductive channel is formed in the bag bottom. The carbon fiber electrostatic actuation type dust-removing filter bag has the advantages of high temperature resistance, corrosion resistance, good conductivity, low surface resistance, and large volume resistance, ensures that a dust remover is not electrified and is insulated so as to maintain the production safety, and is capable of enabling corona discharge charges reaching the surface of the filtering material to be immediately eliminated and preventing high-temperature breakdown under the condition of electric sparks.

Description

technical field [0001] The invention relates to a filter bag and a preparation method thereof, in particular to a carbon fiber electrostatic excitation dust removal filter bag and a preparation method thereof. Background technique [0002] Industrial flue gas dust has become the main source of air pollution in my country, and research and solution to the problem of dust pollution has become a major issue in purifying air quality and improving living environment conditions. The types of dust collectors that are widely used at present are mainly electrostatic precipitators and bag filter. Because the electric bag composite dust collector combines the advantages of the electric dust collector and the bag dust collector, and avoids the shortcomings of both, it greatly improves the performance of the traditional dust collector. The latest electrostatic excitation dust filter bag mainly connects the electrostatic precipitator and the bag filter as two units in series, and occupie...

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Problems solved by technology

[0004] In order to overcome the problems of large floor area, poor conductivity of filter material and high resistance of existing electric bag dust collectors, the purpose of the present invention is to provide a carbon fiber electrostatic excitation dust removal filter bag and its preparation method. The filter bag is resistant to high temperature, Corrosion resistance, good conductivity, uniform distribution of conductive materials, and long-lasting conductivity, low surface resistance, large volume resistance, to ensure that the dust collector is not charged, insulated, and maintain production safety, and can discharge the corona discharge charge on the surface of the filter material Eliminate in time to prevent high temperature breakdown in the case of electric sparks

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