Coal-fired boiler industry

The main components of smoke from coal-fired power plants are N2, O2, CO2, SO2, NOx, water vapor, etc. It also contains a small amount of CO, SO3, H2, CH4 and other hydrocarbons (CmHm). Generally, the flue gas temperature is around 140-150°C, but there are also around 180-220°C. The following products are recommended:

In the industry, there are many common non-woven fabrics. Filtration non-woven fabric is a common one. It is characterized by good filtration and strong absorbency. In fact, it can also be divided into many types. Which ones can it be divided into specifically? What about classes? The following is the relevant introduction:

1. Cotton filter cloth: Mainly utilizes the swelling property of cotton fiber and is suitable for collecting fine dust.

2. Polyester filter cloth: high strength, excellent wear resistance, low elongation, good acid resistance, soluble in high temperature and strong alkali liquid, hydrolyzed and brittle under special circumstances, dry heat resistance, good shape retention.

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

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

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

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

7. Aramid filter cloth: high strength, good heat resistance, excellent chemical resistance, mildew resistance, good radiation resistance, flame retardant.

8. Fluorine-containing fiber filter non-woven fabric: corrosion resistance, good thermal stability, low electrical conductivity and thermal conductivity, good electrical insulation, good flame retardancy, and the lowest friction factor among synthetic fibers.

9. Carbon fiber filter cloth: high elastic modulus, low density, high tensile strength, good corrosion resistance, good dimensional stability, and excellent electrical 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. Metachloride fiber filter non-woven fabric: It has high wear resistance, mildew resistance and decay resistance, does not absorb moisture, and does not swell in water.

12. Vinyl chloride fiber filter cloth: good wear resistance, resilience and antistatic performance, and flame retardant.

Different types of filter non-woven fabrics have different uses. Of course, their suitable ranges are also different, but their filtering properties are very good, so they are widely used.