Plaster Powder Plant Gypmak
PLASTER PLANT Plaster Powder Plant Rotary Kiln Vertical Kiln Ring Roller Mill Hammer Mill Calciner Autoclave (Alpha Hemihydrate) GYPSUM By heating of gypsum found in nature (CaSO4+2H2O) to 150 to 160°C, 1,5 mol water evaporates of 2 moles in the chemical structure and it is changed as CaSO4+1/2H2O called calcination process.