Industrial dust removal equipment When purifying high-temperature flue gas, the filter material of the bag filter can have two options:
　　1. After the flue gas is cooled, the normal temperature filter material is used.
　　2. The high-temperature filter material is directly used without cooling, or the flue gas is cooled to a certain extent, and a filter material with better temperature resistance is used. It should be determined after technical and economic comparison.
　　It is important to consider that flue gas cooling will increase equipment investment and operating costs. However, the price of industrial dust removal equipment and normal temperature filter material is relatively cheap. If the flue gas is not cooled, the flow rate of the industrial dust removal equipment will be expanded due to the large flow rate of the flue gas working condition, and the high price of the high temperature filter material will result in a higher investment. However, the cooling of the purchase and operating costs can be eliminated.
　　Special attention should be paid to the dew point of the flue gas. The lower limit of the operating temperature should be higher than the dew point temperature of the flue gas by 15-20 degrees to ensure the safe operation of the industrial dedusting equipment.