The filter bag determines the important components of the dust collecting efficiency and operating temperature, the cost of replacement filter bags and baghouse maintenance costs. 
 Select the filter according to the temperature, humidity, and chemical properties of gases; particulate matter size, weight, shape, and dust concentration, filtration rate, cleaning methods, emission concentrations and baghouse system of work and other factors considered. 
 Our production of filter bags design, reasonable structure, long working life to ensure a dust collector in good working condition, and operating cost. 
 A bag specifications 
 Bag specifications (length L and diameter D) enters into the bag with the gas inlet velocity. Dusty gas into each bag, the rapid speed V1 of the population, on the one hand, to accelerate the secondary cleaning dust suppression flying the other hand, a sharp increase in wear due to the friction of the dust filter bag, so the average V1 can not too large. 
 2 filter area to determine 
 Need to filter the gas flow and the filtration rate to determine the filter area of ??the precipitator. Calculated as follows: 
 A = (Q + QL) / V ... (3) 
 Where: A - filter area, in m; Q - need to filter the gas flow, m? Min; QL - ventilation and dust removal system air leakage, m - like on-demand filter gas flow of 15% -30% selected; V - filtration velocity, m? min. 
 Filter bags specifications table 
 Bag picture model diameter length of the applicable equipment 

 Round bag 
 (Outside the filter type) 120,200,021,002,800 
 320,036,004,000 
 4400 4800 5600 6000 
 Pulse jet baghouse 
 130 
 152 
 200 

 Round bag 
 (Within the filter type) 18060008000 
 10000 12000 pulse jet baghouse 
 250 
 300 
 Flat bag 800 plus transfer blowback baghouse 
 900 
 Envelope-type bags 1500 * 750 * 25 next to the plug baghouse 


 3 bag number 
 Bag number N is the total filtration area A divided by the surface area of ??a single book bags Ai (m). Round bag: Ai = пD? L, and N = A? Ai is. 
 Dust suppression efficiency of the baghouse and bag the nature of the filtration velocity, dust concentration of the gas and the continuous operation time factors, these factors are interrelated and interacting So, the choice of bag filter design parameter should be a comprehensive analysis and comprehensive consideration. Of course. Matching the fan air pressure and air volume and baghouse dust accessory parameters will directly affect the effect of dust in the process of design, use should also be considered together. With the deepening of the baghouse theory and technology research, such as further study of the design parameters, the filtering mechanism, filter material, equipment, structures and cleaning methods work, bag filter in the paper industry production and the environment protection will play a bigger role. 
 Burning pressure processing 
 Burning pressure of companies to import equipment, single and double sided needle felt filter treated with an unparalleled advantage in ordinary singeing and pressing process, not only improves the cleaning performance of the filter, but also to meet the The fine dust collection. 
 Anti-static treatment 
 Some dust in the specific concentration of state, the case of spark will ignite the flammable and explosive dust needle felt filter should be selected by the anti-static treatment. Antistatic filter is mixed with the conductive fibers in the filter fibers (including the binary conductive fibers. graphite filament conductive fiber and stainless steel conductive fiber), so that the entire filter media are conductive properties. 
 PTFE coated treatment 
 When the dust particle size less than 1 micron, or dust with a lot of sticky, or containing gas humidity, the ordinary filter can not effectively filter the raw materials, polytetrafluoroethylene (Teflon) coated filter materials with high filtration precision, smooth surface, no adhesion of dust, easy cleaning dust does not penetrate into the filter internal filter surface. 
 Water and oil repellency treatment 
 Needle felt filter using a fluorocarbon resin and PTFE impregnated oil processing and water treatment, wet dusty gas (particularly absorbent. Deliquescence dust) on the surface of the bag easier to trap dust, avoid and mitigate the paste the occurrence of the bag. 
 Easy cleaning processing 
 Easy cleaning using patented technology to produce needle felt filter itself is dense and breathable, with good cleaning performance, and can work long hours in the higher filtration velocity. 
 Dust filter cleaning steps: 
 a, cleaning: high-frequency vibration, the larger dust particles will enter the bag wall to try to clear, will not have the impact of fiber entanglement fastness, adhere to bag a good stripping resistance. 
 b, disposal of chemical experiments: Extract Toi sample, using a specialized instrument laboratory testing bag oil spill ingredients, which selected relative to conform to the washing raw materials, maximum wash bag without bag to form any damage. 
 c cleaning: choose the appropriate washing raw materials and strict ratio, low-temperature water to clean water average, moderate-intensity, there is no mechanical damage to the bag. 
 d, drying: about 110 ℃ hot air drying, to maintain the dimensional stability of the filter bag, filter bag after drying without deformation, not retraction. 
 e, repair: repair, to ensure a high return rate due to use of abrasion, holes and other damage bag to stop. 
 f, detection: instrument to stop the physical indicators of the bag after cleaning inspection, ensure that the quality of cleaning the incoming request. After the disposal of the above processes, the integrity of the bag after cleaning can reach the use of the request. Based on road distance to the local deposit paid can-site service. 
 Dust filter, also known as the dust bag, with high strength, small elongation, resistance to strong acid, weak base, such as characteristics of the dust filter bag in the weaving process of the multilateral brushed the progress of the fabric thickness, flexible, dust bag with high temperature high-pressure cleaning of the way, the effect of dust is very good. Dust filter commonly used in the dust of the cement plant milling of cast iron machine