The dust bag is a dry filter dust device suitable for trapping small, dry, non-fibrous dusts. Dust bags are generally made of textile filter cloths and non-woven felts, and can be divided into three types according to the operating temperature:
Room temperature dust bag: mainly made of polypropylene, polyester and other filter materials by non-woven, textile technology, with good air permeability, smooth surface, good dimensional stability, dust is not easy to adhere and easy to peel and other fine properties. It is mainly used in dust-removal and normal-temperature flue gas treatment in normal temperature industries where there is dust pollution.
Medium-temperature dust bag: It is mainly made of Acrylic filter short fiber and Acrylic base cloth acupuncture process. It is widely used in the medium temperature field and middle temperature congee dust bag. It is suitable for various dust pollution industries and bad working conditions such as medium temperature.
High temperature dust bag: Mainly by P84, PPS, expanded glass fiber, ultra-fine glass fiber, PTFE and other high temperature resistant fiber processed by spinning and non-woven technology, with good thermal stability, high filtration efficiency, long service life and other characteristics . After coating, it also has excellent properties such as corrosion resistance, water repellency, oil resistance, and static resistance. Mainly used in various high-temperature flue gas conditions and dust removal under adverse conditions.
Different industries have different requirements for dust emission standards. According to the nature of dust and production characteristics of various industries, dust bags used in each industry are different.
Boiler and coal-fired power plant applications: domestic boilers and coal-fired power plants originally used electrostatic precipitators to treat dust-laden flue gas, and later found that electrostatic precipitators are often affected by operating conditions and result in unstable dust removal. Electric bag-type dust collectors or point bag compound dust collectors are now widely implemented. Due to the large dust content and complex composition of the dust, the temperature of the flue gas is very high, and the temperature of the bag is required to be 180°C to 200°C. Therefore, the high temperature dust bag is generally selected for corrosion resistance, electrical resistance, and oxidation resistance. The application is more PPS dust bag.
Application in iron and steel production: The iron and steel industry has a large concentration of smoke and dust, and it has sticky and fine characteristics. Different operating conditions for different furnace conditions are different. In some working conditions, only the temperature of the dust bag can be 150°C to 200°C. Some working conditions require the bag to be able to withstand temperatures above 300°C. The requirements for the performance of the bag are lower, depending on the working temperature, depending on the operating temperature, the use of a medium temperature dust bag or a high temperature dust bag. The most commonly used dust bags include Nomex, glass fiber/P84 composite needled felt, and pure glass fiber filter material.
The application of cement building materials industry: There are many links in the production of cement plants, but no matter which part of the dust gas temperature is very high, and contains a lot of sulfur dioxide, nitrogen oxides, carbon dioxide, hydrofluoric acid and other easy Corrosion material of the bag. General use of corrosion-resistant, acid-resistant, high temperature dust bag. The most widely used fiberglass film dust bag.
Non-ferrous metal industry applications: The non-ferrous metal industry produces a lot of pollutants in the production, these pollutants contain corrosive components, and the metal particles have a certain degree of sharpening, so generally choose to wear-resistant, corrosion-resistant dust bag , Such as PTFE, Flumez, Meitas, etc., if necessary, the filter material is coated or acid-base treatment.
浙江天台丰顿滤料有限公司是一家专业从事：液体过滤袋、工业滤布、滤布、滤袋、除尘袋生产销售的滤布厂家，多年来在液体过滤袋、滤袋、工业滤布、除尘袋生产上积累了丰富的经验和领先的技术。
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