cost-saving, high quality and automatic/Simple structure, low operating cost, stable product quality, simple craft, inexpensive

1.     Brief introduction

Natural gypsum generally includes dihydrate gypsum and anhydrous gypsum. In order to get the valuable materials, generally, we get semi-hydrated gypsum through heating the dihydrate gypsum.

2.    Production scale

20000tons per year ~200000tons per year

3.     Main technology

Gypsum mine→ first breaking →second breaking →grinding →calcining →aging →finished products (CaSO4·1/2H2O)

4.     Raw materials

Content of CaSO4·2H2O in gypsum mine >80%.

The grade of mine and the crystal configuration will influence the quality of semi-hydrated gypsum.

5.  Calcining Technology:

A: rotary kiln

B: fluidized furnace

6. The list of the equipment

No.	Name
1	Apron feeder
2	Single-rotor Impact crusher
3	Screw conveyor
4	Circumgyrating, blowing in reverse, pocket dust catcher
5	Bucket elevator
6	Screw conveyor
7	Screw conveyor
8	Materials bin
9	Single screw brake
10	Electromagnetic Vibratory feeder
11	Screw conveyor
12	Bucket elevator
13	Bin before mill
14	Electromagnetic Vibratory feeder
15	Grinder
16	Rotor type separator
17	Bucket elevator
18	Air blower
19	Bucket elevator
20	Materials bin
21	Speed adjusting screw conveyor
22	Bucket elevator
23	Bin before furnace
24	Speed adjusting screw conveyor
25	Roots blower
26	Furnace
27	High voltage centrifugal air blower
28	Whirlwind dust catcher
29	High-temperature bag dust catcher
30	Flume
31	Air blower
32	Bag dust catcher
33	Bucket elevator
34	Grog bin

gypsum powder production line