Brief Description of Gypsum Powder Production Process
Gypsum powder, as an important building material and chemical raw material, the optimization of its production process is crucial. The following are the main steps of the gypsum powder production process:
Raw material preparation: Firstly, high-quality natural gypsum ore or industrial by-product gypsum is selected as the raw material, and it is subjected to pre-treatment such as crushing and screening to ensure the uniformity and purity of the raw material.
Calcination: Send the pre treated gypsum raw materials into the calcination kiln for calcination. The calcination temperature is controlled between 150 ℃ and 200 ℃, and the calcination time is about 1 to 2 hours. During the calcination process, the crystalline water in the gypsum ore is gradually removed and converted into semi hydrated gypsum or anhydrous gypsum.
Aging: The calcined gypsum powder needs to undergo aging treatment to eliminate internal stress and improve its stability. The aging time is generally 2 to 4 weeks, during which appropriate humidity and temperature should be maintained.
Grinding: The aged gypsum powder is sent to the grinding equipment for grinding treatment. During the grinding process, the grinding fineness can be adjusted as needed to obtain gypsum powder of different fineness.
Screening and packaging: The finely ground gypsum powder is screened to remove oversized or undersized particles, and then packaged. Strict control of dust pollution is required during the packaging process to ensure the cleanliness and environmental performance of the product.
Inspection and storage: The packaged gypsum powder undergoes strict quality inspection to ensure that all indicators meet the standard requirements. Qualified gypsum powder products are then stored in the warehouse and awaiting sale.
Through the above process flow, high-quality gypsum powder can be produced and widely used in various fields such as architecture, decoration, ceramics, etc.