毕业设计--年产1万吨硫酸铝车间工艺设计.docVIP

年产1万吨硫酸铝车间工艺设计 摘要 我国硫酸铝的生产现状，年产量万吨以上的企业已达29个，3000t至10000t的企业达85个。全国硫酸铝生产能力已达115万t，产量突破95万t，仅次于美国和日本，而居世界第三位[1]；硫酸铝生产中存在的问题是，设计不合理，设备不配套，产量质量都无法达到初衷要求部分生产厂家规模较小，经济效益差导致产品积压严重、投资无法收回，使企业背上沉重的经济包袱Abstract The plants having 10,000 tons of annual output of aluminum sulfate in China hav being upto 29, and the plants having 3000 t to 10000 t, being upto 85. The aluminum sulfate production capacity has reached 1.15 million t, yield breakthroughs 950,000 t, after the United States and Japan, the third in the world live;Aluminum sulfate production in the problem is that the unreasonable design, equipment is not supporting, yield and quality are unable to meet its mind and requested some smaller manufacturers, leading to poor economic returns serious backlog of products, investment is not possible, so that some enterprises back heavy The economic burden of production of a major Al Grey, Al Jardine, of aluminum hydroxide, bauxite atmospheric pressure, such as coal gangue compression method, all of the advantages and disadvantages compared to that of raw materials for the production of kaolin Aluminum sulfate, a low-cost raw materials, high yield, good quality products, process-control advantages, in the course of preparation of the high-activity waste residue can be used as the high-silicon material, but also as a fine of paint and sheet metal products fill, so as to achieve a comprehensive Use and no waste residue emissions, have a positive environmental significance of raw materials used for the production of kaolin aluminum sulfate, with the design of purpose and guiding ideology. Kaolin production of aluminum sulfate, kaolin After pretreatment process, rule out the possibility of kaolin in the rough quartz sand, impurities, the glass used in the production of cement, by Kaolin concentrate, after calcination activated, crushing, screening sent to the production workshop, with 55 percent of the sulfuric acid Mixed easily sent to the reactor, the reaction of acid leaching, set