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close Gypsum powder can be divided into phosphogypsum powder, desulfurized gypsum powder, citric acid gypsum powder and fluorogypsum powder according to different physical components. According to different colors, gypsum powder can be divided into: red stone gypsum powder, yellow stone gypsum powder, green gypsum powder, bluestone gypsum powder, white gypsum powder, blue gypsum powder, color gypsum powder, etc. According to different physical characteristics, gypsum powder can be divided into: dolomite gypsum powder, clay gypsum powder, chlorite gypsum powder, alabaster gypsum powder, talc gypsum powder, sandy gypsum powder and fiber gypsum powder. Gypsum powder can be divided into: gypsum powder for building materials, gypsum powder for chemical industry, gypsum powder for mould, gypsum powder for food and gypsum powder for casting, etc. Gypsum has been used for a long time, but it was simply used to make chalk, putty, tofu and simple handicrafts in the early stage, lacking in-depth research and development, so it did not attract people's attention. In the late 1970s, especially since China's reform and opening up, with the rapid development of the economy, the demand for gypsum in the construction, building materials and other related industries that consume a large amount of gypsum has increased sharply. Gypsum has attracted more and more attention, and has now formed a huge emerging industry. China is rich in natural gypsum mineral resources, with a total reserves of nearly 60 billion tons, ranking first in the world and also a major producer of chemical gypsum. Every year, a large number of chemical gypsum is produced: phosphogypsum alone is produced every year, with nearly 20 million tons, and some phosphate fertilizer plants have accumulated more than ten million tons of phosphogypsum, Especially with the rapid development of China's economy and the emphasis on environmental protection in recent years, power plant desulfurization has become a necessary process for power plants, producing a large number of desulfurization gypsum, in addition to citric acid gypsum, fluorogypsum, salt gypsum and other chemical gypsum, relying on rich natural and artificial resources to carry out comprehensive utilization The development of gypsum industry is also the need of building a circular economy, and it is also a new highlight for many investors. In recent years, with the development of gypsum products industry, various gypsum powders with different uses have also been promoted, especially in the building materials industry. With the continuous increase of high-rise buildings and the gradual deepening of the national wall reform, gypsum powders have become a hot product in the building materials market. In 2005, the consumption of gypsum powder nationwide was about 120 million tons, the output was 85 million tons, and the gap was 35 million tons, which was far from meeting the market demand. Therefore, the processing and development of this project has a large market with high profits and good economic benefits. At present, the automation level of gypsum powder production process and production line is not high, most of them are in manual operation or semi-automatic level, and the quality of gypsum powder products is in a state of low level and low quality for a long time. Our institute adopts advanced equipment such as vertical mill and fluidized bed furnace for pulverizing, and DCS automatic control system is adopted for the whole production line, realizing real automatic production technology. The products produced have good quality and superior performance, and are favored by the market.