The chemical name of acrylic dust removal bag is polyacrylonitrile. It is used as raw material to make felt by needle punching method, and then processed to obtain acrylic medium temperature hydrolysis resistant needle punched filter felt. The product has a permeability of 14m3/m2 · min and an instantaneous working temperature of 160 ℃. The normal working temperature is 140 ℃. The needle punched felt is reinforced with acrylic woven fabric as the base fabric, and the product has excellent chemical resistance and hydrolysis resistance. It is widely used in the dust collection industry of waste incineration, asphalt, spray dryer, coal mill, power plant and other flue gases.

The role of acrylic dust bag in the operation process

Acrylic dust bag is a key part of the operation of bag filter, usually a cylindrical filter bag suspended vertically in the dust collector. The fabric and design of dust removal filter bags should strive for filtration, easy dust removal, and long-lasting effect. In pulse and gas box pulse dust collectors, dust adheres to the outer surface of the filter bag. When the dusty gas passes through the dust collector, the dust is trapped on the outer surface of the filter bag, while the clean gas enters the inside of the filter bag through the filter material. The cage inside the filter bag is used to support the filter bag, prevent it from collapsing, and at the same time, it helps to redistribute the dust cake.

Acrylic dust bag is a key component that determines the dust removal efficiency and working temperature of bag filters. The cost of replacing the filter bag is also the main maintenance cost of bag filters. Therefore, the working life of the filter bag is related to the operating status and cost of the dust collector. Choosing the appropriate filter material and structure is particularly important. The selection of filter media should be based on the temperature, humidity, and chemical characteristics of the gas; The size, weight, shape, abrasion resistance, dust concentration, filtration speed, cleaning method, emission concentration, and working system of the bag filter of the particulate matter should be comprehensively considered. In general, needle punched felt is used for pulse jet bag filters, while woven fabric is used for chamber back blow bag filters or mechanical vibration bag filters.