Hebei Xing Hong Kong Environmental Protection Equipment Co., Ltd. spirit of "virtue-oriented, business integrity, mutual benefit" principle struggled for years, since the establishment of the majority of users of praise. We sincerely welcome all walks of life to cooperate with us. Contact 0311 -85,236,167. Hu: 13831199587. Now the mainstream world, quantity or disc aerators more, but tube has a trend to replace it, but it is very obvious. Now mainly using porous aerator, from the material on the points, mainly divided into: ceramic corundum; or film (including disc and tube) aeration, has its own advantages advantages and disadvantages, but the film is absolutely mainstream . Microporous membrane aerator, the basic structure is relatively simple. Inside a support plate (or tubes), then on the film sets out, by tightening or stainless steel clamp, fixed, on OK. Aerator and air supply pipe connection, generally with threaded connection and installation connecting the two. The most central part of the membrane aerator lies aeration membrane itself. There are two key points: punch way material. There are two main punch: laser drilling and mechanical drilling. Laser drilling by laser irradiation, the surface of the film burning a hole. Disadvantage is a lossy material, and a peripheral portion of the rubber hole is bad, the closure performance is poor, the base is not used abroad. Mechanical drilling, with precision knives, cut the surface of the membrane, the general should be non-destructive material, so that the gas in the drum when the holes open, not when the aeration holes automatically closed to prevent back leakage. Now the film material, most commonly the EPDM (ethylene propylene diene monomer rubber). The rubber from the durability, longevity, anti-aging, hydrophilic and other aspects to consider are the best choice. Biological treatment using this rubber is the most suitable, conventional industrial waste should also be used a film of this material. Specific to each brand of rubber material, some of the recipes, it is the core aerator business things. This is because it directly affects the performance and life of the aerator. For example, you want to hit the hole a little secret, playing a little thin, so can increase the oxygen transfer efficiency. However, if the material can not reach certain requirements, the hole played fine, maybe put a membrane aeration tear. There is also a more material hear is silicone rubber (EDI have done, very good quality). From an objective scientific laws, said silicone rubber material aerator performance is absolutely not as EPDM. (Calculated in accordance with clean water), silicone rubber also has its place, that is, EPDM can not be used, they can consider the use of silicone rubber. Have wide temperature silicone rubber point is -65 to 232 degrees Celsius. Silicone rubber for major alien hazards are acids. There are several special diaphragm materials, briefly explain: Polyurethane PU, nitrile Nitrile, alcohols Alcohols, neoprene Neoprene membrane of these materials, have their own special external hazards. Another said that the ultimate fear nothing Diaphragm: Viton. Disc is to use the early, more mature aerator. The aerator is the beginning of the disc, and is corundum and ceramic materials (EDI disc of this material also has, according to a foreigner myself that quality is also good, but ridiculously expensive; basic need now also in Europe and America, and in the China could not even push). The main disadvantage of the disc below. 1, there is a dead zone of aeration (simple analysis, the entire bottom of the plate are), stirring performance as tube. 2, relative to waste pipe, the entire project cost is higher than the tube. 3, when no aeration, mud deposited directly on the surface of the disc is started again until the re-stirring up the mud should, be more expensive than the tube 30 to 40% of the energy (according to the foreigner that their two in the United States SBR process in a similar comparison, combined calculated conclusions). 4, layout density than tube, if you compare the small pond, aeration and is very large, so you can only use tube, because in this plane can not no matter how much cloth disk. Benefits: From GB provision, the disc head loss than the smaller tube, probably 1000pa; oxygen transfer efficiency compared to some tube to slightly a little bit. Compared with the disc, tubular advantages are obvious: a stirring performance. Entire tube aerator is 360 degrees punch, there is no dead zone aeration. 2, saving the cost of part of the pipeline, the project cost to be significantly lower than the disc. 3, no aeration when the mud deposited on the tube surface only a small range of most middle (EDI this range is not perforated), a little to the side a little curvature is increased, the mud will not sink in it. Start again when the vibration pick up and quickly put the mud mixing. Therefore, SBR, CASS such processes, tubular advantage is very large. 4, in the aeration requires a great deal, the pool area is relatively small in the case, only the tube to meet the requirements. While the tube is greater than the pressure head disc, lower oxygen transfer efficiency (EDI product temperature conditions equivalent depth of altitude, if the tubular general theory in water oxygen transfer efficiency can be selected from 30 to 32% of the disc can reach 33%), but has been considered in the design of this point. Some more fabric through appropriate channels, to ensure that tube and the disc can achieve the same oxygen transfer efficiency, at least we are doing. And the aeration system pressure loss, primarily from depth pressure (generally 5 to 6 meters water depth), and that the pipe pressure drop 1000pa difference (the design has been equilibrated), almost negligible. Contact: Hu Tel: 0311-85236167 Mobile: 13831199587 Fax: 0311-85236170 Website: http://www.xingganghb.com mail: xinggang@vip.163.com Company Address: No. 517 South Main Street