When heating and claiming the dehydrate gypsum or chemical gypsum (phosphor gypsum, desulphurization plaster, flour gypsum), the dehydrate gypsum will be decomposed, we can produce the semi-hydrated gypsum (CaSO4/2H2O) , that is building gypsum, also called plaster of  Paris.
Because of the different temperature and pressure when decompose the gypsum, we can get different product, a-type gypsum and b-type gypsum.  A-type gypsum is high-strength gypsum-type gypsum is building gypsum.
They are the same technology using mechanization producing building gypsum. The process can be divided into three systems, crashing system, claiming system and milling system.
Jaw crusher, Roll crusher, Impact crusher, Percussive mill, Central roller mill and Hammer Breakers can be used as crusher.
The calcite system can use continued and discontinued rotary kiln, continued and discontinued
The continued and discontinued revolving kiln, continued and discontinued vertical cooker, hot oil boiler, tray dryer and so on.
Claiming after milling and milling after claiming are the two main techniques
we can choose Raymond mill, Vertical mill, Cone mill, Peters mill as the grinding equipment.
We can supply full complete set of service according to customer’s desire, from the machine design, working room design, produce supply, setting up until the required products are produced.