Calcium carbonate is a common inorganic compound. According to different production methods, calcium carbonate can be divided into heavy calcium carbonate, light calcium carbonate, colloidal calcium carbonate and crystalline calcium carbonate. Heavy calcium carbonate is produced by directly crushing natural limestone, calcite, etc. by mechanical methods (milling equipment such as Raymond mill). Light calcium carbonate is prepared by calcining limestone at high temperature, digesting with water, carbonizing carbon dioxide, and finally dehydrating, drying, and pulverizing.
Processing Technology
Calcium Carbonate powder can be generally divided into coarse powder processing (0-3MM), fine powder processing (20 mesh-400 mesh), and ultrafine powder deep processing (400 mesh-1250 mesh) and micro powder processing (1250 mesh-3250).
The bulk material of calcium carbonate is crushed by the crusher to the feed fineness (15mm-50mm) that can enter the mill.
The crushed calcium carbonate small pieces of material are sent to the silo through the elevator, and then sent to the grinding chamber of the mill by the vibrating feeder for quantitative grinding.
The ground material is classified by the powder separator, and the unqualified powder is classified by the powder separator and returned to the host machine for re-grinding.
Fine powder complies with the fineness and airflow go through the pipe into the dust collector for separation and collection. The finished powder will be transmitted to bucket elevator by screw conveyor and lifted into Silo for storage by Bucket elevator , then packed uniformly by powder tanker or automatic packing machine.
Required equipment
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