Dust collector dust bag can be called the heart of bag filter, generally called filter dust bag, dust filter bag, dust bag, dust bag, dust bag, dust bag, etc. The dust bag is a key part of the operation of the bag filter, and the cylindrical filter bag is usually hung vertically in the dust collector.

Material of cloth bag

The material of the dust bag is classified according to the temperature of the working condition. There are high-temperature cloth bags, medium-temperature cloth bags and normal-temperature cloth bags; high-temperature cloth bags are made of P84 needle felt, flumesi, Mitas, fiberglass needle felt, etc.; medium temperature Bag materials include PPS needled felt, PTFE needled felt, Fangster needled felt, acrylic needled felt, etc.; normal temperature cloth bag materials include polyester needled felt, coated polyester needled felt, water and oil resistant needled felt, repellent Water and oil-proof electrostatic needle felt, etc.; filter materials of various materials are selected according to the working conditions.

Design and production standards for dust collection bags:

The filter bag is made in strict accordance with the GB/T6719-2009 national standard to ensure the qualified rate of the product.

Bag classification:

Processing method: According to the processing method, it is mainly divided into three types: woven filter material dust bag, non-woven filter material dust bag and composite filter material dust bag.

1. Woven filter material dust collector filter bag: a filter material woven with warp yarns and weft yarns arranged perpendicularly to each other according to a certain organizational law, represented by the letter W;

2. Non-woven filter material dust collecting filter bag: without ordinary spinning and weaving process, fiber is directly formed into a net or yarn into a layer, interlaced, bonded, needle punched, melt blown or spun into a sheet shape The filter material is represented by a compound letter consisting of the letter NW and the code of the specific processing method;

3. Composite filter material dust-removing cloth bag: a dust-removing cloth bag filter material made by two or more methods or a combination of two or more materials, denoted by the letter C.

Fabric weave: According to the fabric weave, it is mainly divided into three types: plain weave filter material dust bag, twill weave filter material and forged weave filter material.

1. Plain weave: This is the simplest form of weaving. Each warp and each weft alternate up and down, but the plain weave has the disadvantages of being difficult to clean and easy to block. Therefore, this kind of weaving has been rarely used as a dust filter material. ;

2. Twill weave: It is formed by interweaving two upper and four lower warp yarns with the weft at the same time. The interweaving point of warp and weft gradually moves to the left or right; the twill weave is divided into single-sided twill and double-sided twill; the flexibility of the twill weave And elasticity is better than plain woven fabric, mechanical strength is slightly lower, and it is easy to dislocation after being stressed, but its abrasion resistance is good, dust removal efficiency and dust removal effect are also good, and it is the most commonly used organization for woven filter materials;

3. Forged weave: According to whether the warp or weft is seen on the surface of the fabric, it can be divided into warp forged and weft forged; the forged weave is characterized by smooth, shiny surface, very soft, elastic and air-permeable At the same time, it is easy to clean dust due to the migration of the yarn.