How about using a bag filter for ultra-low emissions within 10mg of high temperature coal dust?

Working condition requirements:

1. Pumping pressure negative pressure 1200Pa;
2. Dust 10g / m3;
3. Emission 10mg;
4. Require strict sealing;
5. No gas leakage when discharging;
6. Nitrogen blowback unit;
7. The bag selection is resistant to sodium fluoride corrosion.

solution:

1. The ultra-low emission standard of 10mg, the bag filter can be achieved, and the filtering air speed is reduced. Normally the standard of 30mg, we usually filter the wind speed at 1.2m / min, and the ultra-low emission standard takes 0.75m / min.
2. Considering the high temperature of the dust-containing gas, it is necessary to do the cooling treatment. The commonly used cooling equipment includes air cooling system and water cooling system.
3. The entire dust removal system is made of high temperature resistant materials, including cloth bags, cloth bag keels, and heat preservation measures of dust collector boxes. Commonly used high-temperature cloth bags are METAMAX, FMS, PPS, etc. We usually use glass fiber plus PTFE film.
4. To reach the ultra-low emission standard of 10mg, the processing accuracy of the entire dust removal system also has extremely high requirements.
5. Dust in the working condition is flammable and explosive, so explosion-proof treatment measures are required, and the safety requirements are extremely high.
6. In order to meet the ultra-low emission standards, the bag filter must be well designed, manufactured, selected, installed, commissioned and operated.