Several important factors affecting the service life of PPS filter bags in power plants:
1. Ash cleaning method (back-blow type life is longer than pulse type)
2. Filter wind speed (the higher the filter wind speed, the shorter filter bag life)
3. The structure and design of the dust collector include the distance between the filter bag and the wall plate, between the filter bag and the filter bag.
The interval, the position of the air inlet and outlet, and the deflector installation.
4. Flue gas properties produced from coal and boilers. Water and sulfur oxides, nitrogen oxides, oxygen content
The higher the impact on the life of the bag, the more significant it will be)
5. The temperature of the flue gas (flue gas temperature above 170 ° C, has a significant impact on the life of the bag, the general principle is that the higher the temperature, the shorter the life expectancy, because the smoke temperature accelerates the ability of the chemical reaction)
6. Dew point temperature and critical temperature (ideal condition is to maintain the flue gas temperature within 4 years of life
Balanced, less volatile. There must be electronic control measures to prevent smoke or bags with too low or too high temperatures
contact.