In gypsum crushing operations, heat treatment is not generally necessary. Crushing gypsum involves reducing its size into smaller particles to prepare it for downstream applications, such as plasterboard or cement production. This process mainly includes mechanical crushing, grinding, and screening, which are physical methods.
However, gypsum may undergo calcination (a heat treatment process) in later stages, depending on the product being manufactured. Calcination involves heating gypsum (calcium sulfate dihydrate) to remove part of its water content, converting it into calcium sulfate hemihydrate (commonly known as plaster of Paris). This step is vital for applications where gypsum is used as a binder or in plaster products.
In summary, while heat treatment isn’t required in the initial crushing stages, it becomes important in the material processing cycle where gypsum must be converted into specific forms like plaster of Paris.
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