How to make the Alpha Gypsum Powder from Raw Gypsum Rock?

Alpha gypsum powder is the calcined hemihydrate gypsum made from the raw dihydrate gypsum rock, it can be used for making quality improved GRG(glassfiber reinforced gypsum) plaster and ultra high strength gypsum powder. These Alpha gypsum powder or GRG or ultra high strength gypsum powder are widely used in these industries:
>Builing Materials.
>Ceramic Moldin.
>Art Works.
>Medical use.

But how to make the Alpha gypsum powder?
1, Select the correct good quality gypsum rock for making high strength Alpha gypsum plaster.
2, Wash the original gypsum rock to make sure there is no dust no impurity left during the manufacturing process of gypsum powder, the washing step can ensure gypsum powder good whiteness and consistency.
3, Put the washed clean gypsum rock stone into heating equpment, adjust the temperature for making high strength hemihydrate Alpha gypsum plaster.
4, Grind the high temperature heated rock, make sure the gypsum rock stone shape to be good fineness gypsum powder.
5, Quality test to make sure the Alpha gypsum powder can meet good quality standard, then pack the finished powder into sturdy bag 25kgs, 40kgs, 1000kgs or you can customize the weight you need in each bag.