What are the types of high temperature dust removal bags?
There are five kinds of high-temperature dust removal bags, which are Fumes cloth bag, Metas cloth bag, pps cloth bag, p84 cloth bag and glass fiber needle-punched filter felt cloth bag. The filtration speed of the high temperature dust filter bag can reach more than 1.0m/min, the running resistance is low, the wear resistance, folding resistance and peeling strength are significantly improved, and the operating temperature can reach 260 degrees. The high temperature dust filter bag is treated with Teflon, widely used It is used in iron and steel, non-ferrous smelting, chemical industry, carbon black, building materials, and electric power sectors. The temperature of the Metas cloth bag can be 204 degrees, and the dust-containing flue gas can only be filtered and separated at a high temperature above the acid dew point. Light and calendered or Teflon coated.
1.) Metas Needle-Punched Felt Bag
Metas needle-punched felt bag has the characteristics of high temperature resistance, high strength, acid and alkali corrosion resistance, wear resistance and bending resistance. After different surface chemical treatment and finishing processes, it also has the functions of easy dust removal, water repellency, oil resistance, antistatic and other functions. Suitable for 200°C-300°C series products.
2.) Flumes Cloth Bag
Compared with glass fiber cloth bags, the wear resistance, bending strength and peel strength of flumes cloth bags are significantly improved, and they can withstand higher filtration loads. The filter speed of the bag filter can reach 1.0m/min, and the running resistance is small. Compared with chemical fiber dust removal bags, Fumes cloth bags and synthetic chemical fiber high temperature dust removal bags overcome the shortcomings of long elongation, large deformation, low temperature resistance and poor corrosion resistance; in addition, Fumeex cloth bags have better dimensional stability and Strength, its price is lower than other high temperature chemical fibers. Fumes cloth bags are widely used in steel, smelting, chemical and carbon black, building materials, electric power and other departments.
3.) Glass Fiber Needle-Punched Felt Bag
Fiber needle felt dust bag is a high temperature resistant filter material with reasonable structure and good performance. It not only has the advantages of high temperature resistance, corrosion resistance, dimensional stability, minimal elongation and shrinkage, and high strength of glass fiber fabric, but also the felt layer fiber has single fiber, three-dimensional microporous structure and high porosity, which has little resistance to gas filtration is a high-speed and high-efficiency high-temperature filter material.
4.) PPS Acid-Resistant Needle-Punched Felt Bag
The working temperature of PPS acid-resistant needle-punched felt bag is 190°C, the short-term working temperature is 232°C, the melting point is 285°C, and the limiting oxygen index is 34~35. It can be used in any situation where the oxygen content is 15% or less. Sulfur-containing oxides in fuel or flue gas have been shown to be resistant to acids, alkalis, and chemicals. A very sexy fiber. The flue contains moisture. Under the industrial and mining conditions of 190°C~232°C, the air-to-cloth ratio of online cleaning is as high as 5:1, and the air-to-cloth ratio of offline cleaning is as high as 6:1, and the PPS filter bag has an excellent performance record.
5.) P84 High Temperature Dust Bag
P84 high temperature resistant dust bag fiber is also known as polyimide, and its basic chemical composition is mainly composed of aromatic units. P84 high temperature resistant dust filter bag fiber filter material has the following characteristics: 1. The fiber cross section of P84 high temperature resistant needle-punched felt dust filter bag is an irregular trilobite-shaped cross-section. This special cross section increases the surface area of P84 high temperature resistant dust bag fiber P84 needle-punched felt filter bag can effectively capture smile particles and is easy to clean; 2. P84 high temperature resistant dust bag fiber has non-combustibility; 3, P84 high temperature resistant dust bag fiber has very superior chemical properties and can resist corrosion; 4 , High temperature resistant P84 dust filter bag fiber is resistant to high temperature, can run continuously at a temperature of 240 ℃, and can withstand an instantaneous temperature of 280 ℃.
The high temperature dust filter bag has strong integrity retention and inherent chemical resistance, which can maintain good filtration performance in harsh environments and achieve ideal use results. It can be used to filter coal-fired boilers, waste incinerators, and power plant dust. Dust collection treatment, the use temperature can reach 190 degrees, using high temperature hot pressing and singeing treatment.
The main function of the dust removal efficiency is the dust removal bag. How to use it correctly and maintain it is very important. The temperature is too high or too low, which will also affect the dust removal bag under certain circumstances. Cool to below the dew point, especially for baghouses that work under negative pressure. Due to the frequent leakage of air from its outer shell, the temperature of the bag room is lowered, so that the internal gas temperature is lower than the dew point, and the dust filter bag is damp.
