gypsum powder manufacturing process and production line

The main component of natural gypsum (CaSO4·2H2O) is processed into industrial and building materials, such as glass, plastic rubber, paint asphalt and other industrial production fillers, as well as concrete expansion agents, cracking agents, self-leveling mortar, etc. In addition, gypsum can also be used to improve soil and adjust pH, and is suitable for improving saline-alkali soil, red soil and other soils.

Desulfurized gypsum is an industrial byproduct produced by wet desulfurization in coal-fired thermal power plants. Its composition is basically the same as that of natural gypsum, but with higher purity and fineness. There are many ways to use desulfurized gypsum, mainly to make semi-hydrated gypsum or anhydrous gypsum after low-temperature drying and calcination. Both are cementitious materials. The dried gypsum can be used as a raw material to produce cement retarders, gypsum boards, gypsum blocks, gypsum mortar, plaster mortar, gypsum putty, medical gypsum, mold gypsum, dental gypsum, etc. The difference between desulfurized gypsum powder and general gypsum powder lies in the difference in physical composition. Desulfurized gypsum powder also contains silicon dioxide, sodium oxide, calcium carbonate, calcium sulfite, limestone, calcium chloride, magnesium chloride, etc. Compared with other gypsum powders, desulfurized gypsum powder has the characteristics of being renewable, small in particle size, stable in composition, low in harmful impurities, and high in purity.

The production process of gypsum mortar powder involves multiple steps to ensure quality and efficiency from raw materials to final product. The following is the main process flow of gypsum powder manufacturing:
Crushing: First, the gypsum ore is screened and crushed to ensure that its particle size meets production requirements. Ore with a particle size greater than 20mm will be crushed and screened again.

Grinding:Gypsum ore needs to be ground into fine gypsum powder.

Calcination Dryer: Finely ground gypsum ore enters The calcining kiln performs the calcining process. The calcination temperature is usually controlled between 140℃~180℃, and the duration is about 5~6 hours. During this process, the moisture in the gypsum ore is removed to obtain gypsum semi-finished products.

Cooling:The calcined material enters the cooler to ensure the quality of gypsum powder.

Finished product packaging:The gypsum powder enters the packaging machine through the conveying device for packaging

If the water content is too high, it must be dried before grinding. The main processes are crushing, drying, grinding, and packaging of finished products. This type of gypsum powder can be used in gypsum mortar, plastering gypsum, papermaking gypsum and other fields, gypsum board and other building materials, and putty powder.

Gypsum powder is a common building material whose main component is calcium sulfate and has the following uses:

1. Building materials: Gypsum powder can be used to make gypsum boards, gypsum blocks, ceilings, partition boards and other building materials.
2. Sculptures and crafts: Gypsum powder can be used to make sculptures, models, toys and other crafts.
3. Medical uses: Gypsum powder can be used to make medical supplies such as plaster bandages and dental models.
4. Industrial use: Gypsum powder can be used to make molds, casting models, ceramic molds and other industrial supplies.
5. Agricultural uses: Gypsum powder can be used to improve soil, adjust pH, increase soil fertility, etc.