Carbon fiber and basalt composite filtering material

Abstract

A carbon fiber and basalt composite filtering material consists of an upper composite fiber felt layer, a lower composite fiber felt layer and a middle base cloth layer. The upper composite fiber felt layer is composited with the middle base cloth layer into a whole by a lower needling process, and the lower composite fiber felt layer is composited with the middle base cloth layer into a whole by an upper needling process. The middle base cloth layer is mesh cloth woven by a rapier by using 1K carbon fibers. Each of the upper composite fiber felt layer and the lower composite fiber felt layer is mixed the following materials by weight percentage: 50% of carbon fiber short chopped strands, 25% of stainless steel short chopped strands and 25% of basalt fiber short chopped strands, and the upper composite fiber felt layer and the lower composite fiber felt layer are needled onto the middle base cloth layer by a needle machine to form a composite felt layer. The composite filtering material manufactured according to the processes is further dipped in a chemical dipping solution and dried. According to the carbon fiber and basalt composite filtering material, the oxidation resistance of carbon fibers at a high temperature is improved after the dipping and flame retardant treatment, and the softness of a needle felt is improved.

Description

technical field [0001] The invention belongs to the field of composite filter material manufacturing, in particular to a carbon fiber basalt composite filter material. Background technique [0002] Flue gases from metal smelting and waste incineration contain a large amount of toxic and harmful substances, such as sulfides, nitrogen oxides, cyanides, dioxins, etc., which are discharged into the atmosphere and constitute serious pollution. At present, we mainly deal with the garbage incineration king produced by Gore Company of the United States and the domestic pure PTFE filter felt. Such products are expensive. The invention utilizes carbon fiber waste silk for deep processing research and development, which greatly saves production costs. Overcome factors such as high moisture content, strong corrosion, and high temperature in dust removal conditions. It has the functions of filtration, heat preservation, sound insulation, shock absorption, etc., and has the function of...

AI Technical Summary

Problems solved by technology

However, after the mesh cloth made of carbon fiber is punched, due to the large loss of strength (about 60-70% of the original strength), when used as a filter material, it must be impregnated with a chemical impregnation solution to increase the strength of the carbon fiber. Meet the requirements

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