Plate-frame type PTFE membrane deduster

Abstract

The invention relates to the field of gas dedusting and provides a plate-frame type PTFE membrane deduster. The deduster comprises one or more dedusting mechanism. The dedusting mechanism relates to an enclosed space formed by connecting dedusting plates (4), dedusting frames (3) and blowing plates (9), and is assembled successively according to an order of one of the dedusting plates (4), one of the dedusting frames (3), one of the blowing plates (9), another dedusting frame (3) and another dedusting plate (4). The middle part of each dedusting frame is a hollow frame and the two sides of each dedusting frame are covered with PTFE microporous membranes (7). The dedusting plates (4) and the blowing plates (9) are solid baffle plates the cross-sections of which are I-shaped. By application of a PTFE microporous membrane material to plate-frame type membrane assemblies, the deduster has advantages of high dedusting efficiency, easy dedusting, corrosion resistance, high-temperature resistance, long working time, large filtering area, large treating amount, and the like.

Description

Technical field [0001] The invention relates to the field of gas dust removal, and provides a plate and frame type PTFE membrane dust collector. Background technique [0002] Before the 1950s, the filter materials were mainly natural fibers such as cotton and wool, which had defects such as low temperature, high moisture absorption, and acid resistance. Except under certain normal temperature conditions, they are now rarely used. The development of filter materials is to develop in terms of high temperature, low moisture absorption, corrosion resistance, etc., and filter materials with excellent properties such as glass fiber, aromatic polyamide, and polytetrafluoroethylene (PTFE) have appeared successively. The PTFE membrane filter material is a composite of a microporous, extremely smooth, and hydrophobic PTFE filter membrane with different substrates (such as needle felt or woven fabric). There are many types filter material. PTFE membrane was successfully developed by W.L.G...

AI Technical Summary

Problems solved by technology

[0002] Before the 1950s, the filter materials were mainly natural fibers such as cotton and wool, which had defects such as low operating temperature, high moisture absorption rate, and acid resistance. Except under certain normal temperature conditions, they are rarely used now.

The problem is that the bag filter is used, and the gas can only pass through the filter at one time.

However, because the filter material used is ordinary filter material, it is difficult to overcome the dependence on the dust layer, and still has the disadvantages of high filtration resistance, low filtration efficiency, and difficulty in removing fine particles.

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