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Gypsum Equipment Facilities Construction
Jul 01, 2017

In recent years, Gypsum Equipment for the implementation of energy-saving emission reduction policies, the state has introduced a series of laws, regulations and policies to promote sulfur dioxide control in thermal power plants, and accelerated the construction of flue gas desulphurization facilities for coal-fired enterprises such as thermal power plants and coking plants. Gypsum Equipment Desulfurization gypsum is sulfur-containing fuels (coal, oil, etc.) after the combustion of flue gas desulfurization and purification of industrial by-products, is expected by 2010, China's gypsum production in more than 40 million tons. Gypsum Equipment Such a large amount of desulfurized gypsum if not integrated development and utilization, both on the environment caused by secondary pollution, but also to the huge burden of emissions enterprises, seriously hampered the healthy development of enterprises. Obviously, Gypsum Equipment to speed up the application of desulfurization gypsum technology research and development, Gypsum Equipment to promote the process of desulfurization gypsum, become the current urgent task.

Desulfurization gypsum dihydrate calcium sulfate content can be as high as 95%, and high quality natural dihydrate gypsum, its purity, strength, crystal water is also better than natural gypsum, can replace natural gypsum, widely used in gypsum board, gypsum lines, Block, no beam floor fasting material - gypsum mold box, Gypsum Equipment stucco plaster, insulation plaster and other products. Based on this, in 2005 Hubei Longyuan Gypsum (Group) Co., Ltd. and Wuhan University of Technology, Wuhan Metallurgical Building Research Institute jointly set up a research group, launched a desulfurization gypsum powder products technology and equipment as the main application and demonstration research, through The company has made a number of efforts, has made a number of desulfurization gypsum powder equipment and technology research and patents, in Hubei, Zhejiang, Guizhou, Guangdong, Gypsum Equipment Sichuan and other places have built an annual output of 50,000 tons of gypsum powder production line 6 and With an annual output of 250,000 square meters of automatic gypsum block production line 13, gypsum powder, gypsum block, gypsum mold box, gypsum powder, gypsum putty and other products have been successfully used in Zhejiang, Jiangsu, Shanghai,Gypsum Equipment Guangdong, Wuhan and the surrounding Area, the application effect is good, by the user praise, desulfurization gypsum milling and product technology, equipment application and demonstration has achieved initial success.

At present, the main equipment of domestic gypsum calcined rotary kiln, vertical wok and a small amount of imported equipment Peter furnace; calcination of the basic process is based on coal as raw material, Gypsum Equipment through indirect heat exchange, so that the container dihydrate gypsum powder heat conduction dehydration , To form semi-water gypsum as the main component of the building gypsum. As China's calcination technology and developed countries compared to the larger gap, significantly higher energy consumption, Gypsum Equipment with gypsum production of a ton of construction gypsum domestic demand 45-80 million kcal heat, and developed countries are generally 20-25 million kcal, air emissions In the SO2 and dust high, product quality is not stable. Gypsum Equipment To this end, to Europe, the United States, Japan, Korea and other developed countries to learn, for the desulfurization gypsum and other industrial by-product gypsum calcination, the study of new energy-saving environmental protection equipment imminent, as an annual output of 1.2 million tons of gypsum ore, gypsum powder 300,000 tons of Hubei Longyuan Gypsum (Group) Co., Ltd., with the Wuhan University of Technology, Wuhan Metallurgical Building Research Institute jointly set up a research group, around the desulphurization gypsum calcined milling process and equipment launched a series of research, Gypsum Equipment first for the high purity of gypsum gypsum High strength, calcined after the semi-water gypsum powder condensation time is short, combined with my company for many years engaged in natural gypsum powder calcination process technology experience, after repeated comparison test, established the power plant desulfurization gypsum break,Gypsum Equipment hammer mill, dry, Gypsum Equipment Graded one step to complete the air flow calcination process, developed a second chase the hot one-step continuous airflow flash furnace, the test, the equipment with a gypsum production of a ton of construction gypsum heat of 30-40 million kcal, energy-saving effect is obvious.

Desulfurization gypsum calcination made of semi-water gypsum powder, the key lies in the application of large quantities of gypsum powder. According to the characteristics of desulphurized gypsum hemihydrate powder, the research group first selected the gypsum block with the larger amount of hemihydrate gypsum powder as the main task, and studied the production technology and equipment of gypsum block. At present, Gypsum Equipment the domestic gypsum block production equipment to automatic single unit or manual unit based. Automatic single unit with an annual output of about 120,000 square meters, it is pouring, solidification, Gypsum Equipment stripping combined in a unit in the unit, due to the chemical properties of the plaster of the constraints, waiting for gypsum solidification time of 6 to 10 minutes, Far less than 1 minute grouting, stripping 2 minutes of time required.