Calcium carbonate milling process (20-3250 mesh)

09/09/2022

Calcium carbonate milling is generally divided into calcium carbonate coarse powder processing (0-3MM), fine powder processing (20 mesh-400 mesh), and ultra-fine powder processing of calcium carbonate (400 mesh-1250 mesh) and micro powder processing (1250 mesh) -3250 mesh) four types.

Stage 1: Crushing
The calcium carbonate bulk material is crushed by the crusher to the fineness (15mm-50mm) that can enter the mill.

Stage 2: Grinding
The crushed small pieces of calcium carbonate material are sent to the silo by the elevator, and then sent to the grinding chamber of the mill evenly and quantitatively by the vibrating feeder for grinding.
For fine powder processing, LM vertical roller mill, MTW European version mill and 5X European version intelligent mill can be used;
MW ring roller micro-powder mill and LUM ultra-fine vertical mill can be used for superfine powder processing; CM European coarse powder mill can be used for coarse powder processing.

Stage 3: Grading
The pulverized material is classified by the powder separator, and the unqualified powder is classified by the powder separator and then returned to the main engine for re-grinding.

Stage 4: Gathering Powder
The powder that meets the fineness enters the dust collector through the pipeline with the airflow for separation and collection, and the collected finished powder is sent to the finished product silo by the conveying device through the discharge port, and then is uniformly packed by a powder tanker or an automatic baler.

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