What Are the Main Steps in a Gypsum Powder Production Line

What Are the Main Steps in a Gypsum Powder Production Line?

Gypsum powder production involves a series of carefully controlled steps designed to convert raw gypsum into a fine, usable powder. At Hengshui Decheng Machinery & Equipment Co.,Ltd, these steps are implemented in an efficient production line that balances quality, output, and energy use.

Step 1: Raw Material Handling and Crushing
The process begins with the unloading of gypsum ore. This raw material is stored in silos or storage yards before being transferred to a crusher. The crusher reduces large gypsum rocks into smaller, manageable pieces, ensuring smoother grinding and calcination downstream.

Step 2: Grinding and Homogenization
Crushed gypsum is fed into a grinding mill, usually a Raymond mill or vertical mill. During this stage, the raw gypsum is ground into fine particles, usually less than 200 mesh. Proper grinding is essential for a uniform calcination process. The ground material is also homogenized to ensure consistent chemical composition.

Step 3: Calcination Process
The ground gypsum is then sent to a calciner, where it is heated at controlled temperatures to drive off a portion of the chemically bound water. This transforms the gypsum into calcium sulfate hemihydrate, also known as stucco or plaster of Paris.

Step 4: Cooling and Material Handling
After calcination, the stucco is cooled to prevent clumping and ensure free-flowing powder. It is then conveyed to storage silos using screw conveyors or pneumatic systems.

Step 5: Storage and Packing
In the final step, the cooled gypsum powder is packaged into bags or transferred into bulk containers. Packing machines are calibrated for weight accuracy and speed. The finished product is ready for use in construction applications such as plaster, wallboard, or industrial formulations.

Each stage in the production line contributes to the overall performance and consistency of the gypsum powder. Hengshui Decheng Machinery & Equipment Co.,Ltd designs and manufactures complete production lines to meet various capacity and product requirements.