At present, our company can design and production of dozens of specifications of the production line, and according to the different needs of users to tailor different production line. there are many mining machines produced by shanghai SBM, which is a professional
The gypsum powder production line, which is designed by our company, adopts domestic advanced technology and equipment, such as the European version of the T shaped grinding etc. The European version of T mill is the most widely used in our country's equipment in building gypsum calcination equipment. Simple structure, small size, large capacity equipment is compact in structure, not easy to damage, small occupation area, low consumption and convenient operation.
Two natural gypsum (CaSO4·2h3O) also known as gypsum, calcined, ground available beta hemihydrate gypsum (CaSO4? 1/2h3O), which is also called the building gypsum, plaster, stucco. If the calcination temperature is 190 ° C available plaster model, its fineness and whiteness are high than building gypsum. If the gypsum at 400-500 ° C or higher than 800 ° C calcined gypsum, namely the floor, its setting, hardening is slower, but after hardening strength, abrasion resistance and water resistance than ordinary gypsum as well. Usually white, colorless, transparent crystal called selenite, sometimes due to impurities and ash, light yellow, light brown color.
Gypsum is a very soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2h3O.It can be used as a fertilizer, is the main constituent in many forms of plaster and is widely mined. A very fine-grained white or lightly tinted variety of gypsum, called alabaster, has been used for sculpture by many cultures including Ancient Egypt, Mesopotamia and the Nottingham alabasters of medieval England. It is the definition of a hardness of 2 on the Mohs scale of mineral hardness. It forms as an evaporite mineral and as a hydration product of anhydrite.
Commercial quantities of gypsum are found in the cities of Araripina and Grajaú; in Brazil, Pakistan, Jamaica, Iran (world's second largest producer), Thailand, Spain (the main producer in Europe), Germany, Italy, England, Ireland; in British Columbia, Manitoba,Ontario,[13] Nova Scotia[14] and Newfoundland in Canada;[15] and in New York, Michigan, Indiana,[15] Texas (in the Palo Duro Canyon),Iowa, Kansas, Oklahoma, Arizona, New Mexico, Colorado, Utah, Arkansas and Nevada in the United States. There is also a large open pit quarry located at Plaster City, California, in Imperial County, and in East Kutai, Kalimantan. Several small mines also exist in places such as Kalannie in Western Australia, where gypsum is sold to private buyers for changing the pH levels of soil for agricultural purposes.
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