Filter bag with sealing function

Abstract

The invention relates to the technical field of a filter bag, and particularly relates to a filter bag with the sealing function. The filter bag comprises a filter bag cylinder body, wherein the bottom end of the filter bag cylinder body is sewed with a filter bag pulling bottom, and comprises a base layer; the base layer is formed by compounding high-temperature-resisting glass fiber, aramid fiber and polyamide fiber; the base layer is externally coated with a layer of Teflon coating; the top end of the filter bag cylinder body is connected with a sealing ring, and the sealing ring is coaxial with the filter bag cylinder body; the inside diameter of the sealing ring is equal to that of the filter bag cylinder body, and the outside diameter thereof is larger than that of the filter bag cylinder body; the upper end of the sealing ring is connected with a framework connecting flange, and the sealing ring is a hollow structure and formed with an annular holding cavity; a sponge strip is held in the holding cavity, and the outside diameter of the sponge strip is matched with the inside diameter of the holding cavity; both ends of the sponge strip are bonded at the outside of the upper end of the filter bag cylinder body through glue water and coaxially bonded with a plurality of groups of extruding rings; the extruding rings are placed beneath the sealing ring. The filter bag has the advantage of solving the problems of simple sealing structure and bad sealing effect of the existed filter bag.

Description

technical field [0001] The invention relates to the technical field of filter bags, in particular to a filter bag with a sealing function. Background technique [0002] The filter bag is a key part in the operation of the bag filter, and the cylindrical filter bag is usually hung vertically in the filter bag. The fabric and design of the filter bag should be as efficient as possible, easy to remove dust and durable. In the pulse and air box pulse dust collector, the dust is attached to the outer surface of the filter bag. When the dusty gas passes through the dust collector, the dust is collected on the outer surface of the filter bag, and the clean gas enters the inside of the filter bag through the filter material. The cage frame inside the filter bag is used to support the filter bag and prevent the filter bag from collapsing, while it helps to remove and redistribute the dust cake. [0003] Due to the simple sealing structure of the traditional filter bag, the sealing...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the shortcoming of the poor sealing effect of the filter bag in the prior art, and propose a filter bag with a sealing function

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