1, The filter bag material Bag house filter bag material selection and application, is the core technology of bag dust collection equipment for bag house performance plays a decisive role. Each dust collecting point for environmental, handling properties of dust, temperature, technical requirements are not the same, to different conditions, choose a different filter materials, and take the appropriate technological protection measures. The filter bag material requirements include the following technical performance: filter bag materials for different temperatures, peeling, easy cleaning, good ventilation, low resistance, high filtration efficiency, high strength, can withstand high-intensity cleaning, use long life, the price is appropriate. 2, Air leakage Leakage directly affect the dust collection performance and life requirements of air leakage rate <3%. Vacuum bag filter are generally run as easy to form a small leakage circuit shorted. Dust collection system air volume is not enough, a positive pressure dust. Leakage also reduce the system temperature, easy to knot tide paste bag, dust collector resistance increases, reducing the effect of dust collection. 3, Leak The top of the bag house, surrounded by walls serious air leakage, water may enter when it rains, causing the bag paste, or wet material to form clumps ash cone part plugged. 4, Filtration velocity Winds from the dust collector filter is to determine the performance of a very important parameter is also an important parameter to measure the bag filter Advance. Filtration velocity and the dusty gas dust concentration, dust particle size, application, viscosity, gas temperature, moisture content, and is closely related to cleaning mode. When fine-grained dust, high temperature, humidity, high concentration, viscosity large, filtration velocity should be taken lower, and vice versa Optional high value. Filtration velocity is too large, the bag will increase the load and increase the filtration resistance, resulting in bag life short, low efficiency. 5, Ash Ash hopper cone poor, inner hopper fouling too much, the air inlet blockage, resulting in poor ventilation. 6, cleaning interval Cleaning interval is too long, attached to the bag on the dust can not be eliminated, resulting in increased system resistance. Usually the interval is about 4s (can be adjusted according to actual production) injection, injection time is 0.2s ~ 0.3s, the chamber and the chamber at intervals of approximately 30s. 7, Thermal insulation Insulation is the bag filter must do in the first place. Insulation in order to maintain the gas, avoid knot tide paste bag. Most bag appears smear, clogged paste bags phenomenon is dust, low temperature, humidity and other causes.