The main components of flue gas from coal-fired power plants are N2, O2, CO2, SO2, NOx, water vapor, etc. In addition, it also contains a small amount of CO, SO3, H2, CH4 and other hydrocarbons (CMHM). Generally, the flue gas temperature is about 140 ~ 150℃, but some are about 180 ~ 220℃. The following products are recommended

In the industry, there are many common non-woven fabrics, and filtering non-woven fabrics are a common one, which is characterized by good filterability and strong absorbability. In fact, it can be divided into many kinds, which kinds can be specifically divided into? The following is a related introduction:

1. Cotton filter cloth: mainly uses the swelling property of cotton fiber, and is suitable for collecting dust.

2. Polyester filter cloth: high strength, excellent wear resistance, little elongation, good acid resistance, soluble in high-temperature alkali solution, hydrolyzed and brittle under special circumstances, resistant to dry heat and good shape retention.

3. Nylon filter non-woven fabric: high strength, excellent wear resistance, smooth surface, excellent stripping performance of filter residue and good alkali resistance.

4. Polypropylene filter cloth: light in weight and easy to handle, with good acid and alkali resistance.

5. Vinylon filter cloth: It has good alkali resistance and shrinks when wet, especially when heated.

6. Acrylic fiber filter cloth: It has excellent drug resistance and is mainly used for dust collection of corrosive gases.

7. Aramid filter cloth: high strength, good heat resistance, excellent drug resistance, mildew resistance, good radiation resistance and flame retardancy.

8. Fluorine-containing fiber filter nonwovens: good corrosion resistance, thermal stability, low electrical conductivity and thermal conductivity, good electrical insulation, good flame retardancy, and low friction coefficient among synthetic fibers.

9. Carbon fiber filter cloth: high elastic modulus, low density, high tensile strength, good corrosion resistance, good dimensional stability and excellent conductivity.

10. glass fiber filter cloth: high tensile strength, low elongation, high temperature resistance, good thermal stability, good electrical insulation, good corrosion resistance, and lower torsional strength and shear strength than other fibers.

11. PVC filter non-woven fabric: it has high wear resistance, mildew resistance and rot resistance, does not absorb moisture, and does not swell in water.

12. PVC filter cloth: it has good wear resistance, resilience and antistatic property and is flame retardant.

Different kinds of filtering nonwovens have different uses, and of course, their suitable ranges are different, but their filtering properties are very good, so they are widely used.