Structure Principle Of Diaphragm Pump And Its Application In The Emission Of Red Mud Alumina

With the development of the world economy, increasingly used in aluminium and its alloys in various trades and industries, due to the good performance of aluminum and rich aluminum resources all over the world, so aluminum industry is growing rapidly. Red mud from alumina production is in the process of discharge of waste solid powder,1T secondary0.8-1.5T of alumina red mud.2007emissions up to40million t,2010year of red mud in China reached4500～5000million t, cumulative red mud storage has reached hundreds of millions of t, for the highest in the world, Stockpiling large amounts of mud caused pollution to the environment. Diaphragm pump for the study this article, first introduced the methods and approaches derived from red mud in alumina production at home and abroad, production, environmental hazards, came to strengthen comprehensive utilization of red mud, elimination of red mud pollution is all the alumina production enterprises are facing important issues of the day. Second, on various pulp body conveying equipment structure features, and applies range for has describes, through chart comparison came in long distance, and high concentration, and strong corrosion sexual pulp body conveying in the, due to diaphragm pump through set rubber diaphragm will pump of piston, and cylinder set, parts and conveying of alumina abandoned red mud separated from, guarantee has parts of using life, in red mud emissions in the is excellent of conveying equipment. Currently the pump less, check out this study and synthesis of literature at home and abroad on the basis of details the structure characteristics of DGMB130/8three-cylinder single-acting diaphragm pump, operation, performance parameters, on the main structure, part of the pump using a three dimensional design, the pump running with Flash animation image simulation of the entire process. In addition, SGMB structure and working principle of double-acting diaphragm pump, also provided a brief presentation, noted in red mud in alumina production by Bayer transportation advantages and disadvantages. Last, combined I factory production expansion practice, in process in the on slag pulp pump series conveying and diaphragm pump single level conveying for has qualitative analysis comparison; through fluid mechanics on diaphragm pump of equipment selection for has calculation; on diaphragm pump in red mud long distance, and high concentration conveying in the of role, and conveying system design optimization for has detailed describes, on pump of environmental effect, and created of benefits for has test data statistics. That, in practice, because a diaphragm pump is used as a conveyor of red paste, not only ensuring high density, distance, Gao Yangcheng, reliable transmission of high viscosity of liquid red mud, production process optimization, and comprehensive utilization of red mud has played an important role, reduce red mud displacement35%, the highest efficiency of256million dollars, to reduce environmental pollution. The practical application of the results of its research well, and further development of the project of comprehensive utilization of red mud in the future and give full play to diaphragm pump efficiency play a facilitating and catalytic role.