Recently, a gypsum powder manufacturer called thegypsum grinding mill factory in Guikuang to inquire whether GK’s grinding mill can grind calcined gypsum at 300 degrees Celsius? During the calcination and dehydration process of calcined gypsum powder, the particles aggregate to produce particle differences. During the calcination process, the process parameters fluctuate within a certain range and the parameters in the calcination furnace are unevenly distributed, resulting in uneven performance of the gypsum powder after it is released from the furnace. Such gypsum powder is in the product Direct use in gypsum products has a negative effect on the production process of gypsum products and the stability of gypsum products. In order to improve the production process of gypsum products and the stability of gypsum products, the calcined gypsum powder before gypsum product molding is ground and re-mixed to improve the stability of gypsum powder.Guikuang gypsum dry grinding mill can grind dry gypsum at normal temperature. Whether calcined gypsum at 300 degrees Celsius can be ground depends on the production technology research based on the characteristics of the material and the technical requirements of the grinding process, and then the grinding plan is given.