The dust bag should be used to prevent the gas from cooling below the dew point during use, especially when using a bag filter under negative pressure. Since the outer casing often leaks air, the gas temperature in the bag chamber is lower than the dew point, and the filter bag is damp, causing the dust to adhere to the filter bag. In this way, the fabric eyelet is blocked, causing the ash to fail, and the pressure drop of the dust collector is too large to continue operation.
To prevent condensation on the dust removal accessories, the temperature of the gas in the dust collector and its system must be kept higher than the dew point of 25-35 °C (such as the dew point temperature of the kiln mill is 58 ° C, the operating temperature should be above 90 ° C) to ensure the good use of the filter bag. The measure is to take appropriate heating measures. If a far-infrared electric heater or electric heater is installed in the dust collector, or a radiator is added in the bag room, the flue gas temperature of the main machine can be appropriately increased. Strengthen the temperature monitoring of the dust collector and dust removal system to grasp the use conditions of the bag filter and prevent condensation.