Grinding and calcining of gypsum with Pfeiffer grinding plants
a Pfeiffer GK gypsum calcining kettle In this process the natural gypsum is first fed to a Pfeiffer MPS mill where the material is dried and simultaneously ground to the required fineness for plaster Subsequently the ground and dried gyp sum is delivered to the gypsum kettle Fig 3 The kettle filled with finely ground gypsum is