但布袋除尘器的在工作温度比较高时，自然处理风量就会小，一般情况确定好烟气除尘的适当工作温度，对保持良好的过滤条件和延长滤袋寿命是非常必要性。 At present, bag dust collectors are widely used in industrial dust removal , but when the bag dust collector 's working temperature is relatively high, the natural processing air volume will be small. Generally, the appropriate working temperature for flue gas dust removal is determined to maintain good filtration conditions and extend the filtration Bag life is very necessary.
The strength of various filter cloths on the market now varies with factors such as temperature, humidity, and running time. When purifying high-temperature flue gas, it should be designed based on the heat resistance of the filter cloth and the composition of the flue gas. Normal room temperature refers to air dust removal, which is only a matter of humidity. However, it is usually simpler and easier to prevent clear water from entering the dust removal system. For high-temperature flue gas dust removal, it is necessary to control the excessively high temperature of the flue gas and prevent the filter cloth from being burned, and also to monitor the excessively low temperature to avoid the condensation and corrosion of the flue gas. As conditions permit, the temperature of the flue gas should be made as high as possible, so that the interior of the dust collector is kept dry, and the dust removal process can be performed normally, thereby creating good operating conditions. 将运行温度控制在滤布允许范围内，因为温度过低可能导致结露，过高会使滤布过早老化，另外还应避免温度瞬时剧增的情况。 Therefore, it is important to develop a filter material with high heat resistance. The current glass fiber filter material has this advantage . The operating temperature is controlled within the allowable range of the filter cloth. Because the temperature is too low, it may cause dew condensation. The cloth is prematurely aging, and transient temperature increase should be avoided. ℃以下。 The environmental protection industry has regulations that the flue gas temperature should be controlled below 250 ℃ after the exhaust gas temperature of the boiler and the waste heat of the flue gas recovered by the waste heat boiler. The flue gas temperature is based on the dew point inside the dust collector. ℃，在这一温度范围内过滤会使布袋除尘器的除尘效果好并稳定。 The temperature of the high-temperature gas filtration process is preferably 200-250 ℃. Filtering in this temperature range will make the baghouse dust removal effect good and stable.