Electrically conductive filter bag and production method thereof

Abstract

An electrically conductive filter bag and a production method thereof belong to the technical field of electrically conductive bag. The electrically conductive filter bag includes a bag body (1) and q bag bottom sewn at the bottom of the bag body (1); the bag body (1) is provided with a double-layer edge for sewing (2); the double-layer edge (2) is internally provided with a conductive strip (3); the conductive strip (3) is fixed by suture (7) sewn on the double-layer edge; the upper end of the bag body (1) is provided with an annular skeleton; the top of the conductive strip (3) exposes from the top of the double-layer edge (2), and winds from the inside of the bag body (1) to the outside of the bag body (1), and is then fixed below the annular skeleton onto the bag body (1); and the bottom end of the conductive strip (3) exposes from the bottom of the double-layer edge and is placed outside the bag body (1). The electrically conductive filter bag has good conductive effect, prevents conductive failure caused by collision of the keel and the conductive strip in the bag body. The production method completes sewing of the bag body and the conductive strip in one step, and improves the production efficiency of the electrically conductive filter bag.

Description

technical field [0001] A conductive filter bag and a manufacturing method thereof belong to the technical field of conductive filter bags. Background technique [0002] The use of non-conductive filter bags in dust removal conditions with high dust concentration and static electricity can easily cause dust explosions, damage filter bags and other dust collector accessories, and even cause greater safety accidents. In the existing technology, there are two main methods to solve the problem of static electricity in the dust. One is to add stainless steel fiber and carbon fiber to the surface layer of the felt when making the filter bag, and pass through the stainless steel fiber contained in the surface layer during use. Fibers or carbon fibers conduct static electricity away. The price of this kind of filter bag is quite expensive, and the stainless steel fiber or carbon fiber will be unevenly distributed in the surface layer during production, resulting in poor contact with...

AI Technical Summary

Problems solved by technology

The price of this kind of filter bag is quite expensive, and the stainless steel fiber or carbon fiber will be unevenly distributed in the surface layer during production, resulting in poor contact with the keel, resulting in poor conductivity and prone to problems; the other is in the filter bag Conductive yarn is added to the base fabric to conduct static electricity away during use. The conductivity of this filter bag is worse than that of carbon fiber or stainless steel fiber in the surface layer.

[0003] Although there is a design of embedding a conductive strip in the bag body in the existing conductive filter bag, the conductive effect is not ideal in actual use, and the conductive strip is easily broken and causes conductive failure

Most of the existing sewing methods use to sew the filter bag first, and then sew the conductive tape on the filter bag. First, this method needs to be sewn twice and the sewing speed is relatively slow; secondly, the method is to sew the conductive tape in the second step. It is necessary to sew on the filter bag base material that has been sewn into a tubular shape. Since the filter bag base material is tubular, it is inconvenient for the existing sewing equipment to sew the conductive tape on the outer wall or the inner wall of the filter bag base material.

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