Generally speaking, gypsum can refer to two minerals: raw gypsum and anhydrite. Raw gypsum is calcium sulfate dihydrate, usually in dense block or fiber shape, with a Mohs hardness of 2; anhydrite is anhydrous calcium sulfate with a Mohs hardness of 3 to 3.5. Two kinds of gypsum are often produced together, and they can be transformed into each other under certain geological action.
Gypsum Processing
The crusher crushes the large-size natural gypsum ore into small particles less than 30mm. After storage and the electromagnetic vibration feeder controls the feed amount, it is transported to the mill for grinding, and is screened to the required fineness by the classifier. Qualified raw powder for grinding is transported to the boiling furnace for calcination, and the qualified gypsum powder after calcination is sent to the clinker bin or product workshop for use.
Gypsum Grinding Mill
Gypsum Fineness And Application
| Fineness | Applications | Recommended Equipment |
| 80-120 meshes | Used in gypsum line and board. The anhydrite is applied less. | MTM Trapezium Mill MTW Trapezium Mill LM Vertical Grinding Mill |
| 180-200 meshes | Used to produce gypsum line and board. The applications are relatively fewer. |
