What are the production processes for heavy calcium carbonate?

There are two production processes for heavy calcium carbonate:

1. Dry production process: Firstly, manually select calcite, limestone, chalk, shells, etc. transported from the quarry to remove gangue; Then, the limestone is roughly crushed using a crusher, and fine limestone powder is obtained through Raymond (pendulum) grinding. Finally, the grinding powder is graded using a classifier, and the powder that meets the particle size requirements is packaged and stored as a product. Otherwise, it is returned to the grinding machine for further grinding.

2. Wet production process flow: First, dry fine powder is made into a suspension and placed in a mill for further crushing. After dehydration and drying, ultrafine heavy calcium carbonate is produced.

The MTW European version grinding mill is a replacement product for traditional Raymond grinding and pendulum grinding. This model adopts multiple new patented technologies such as bevel gear integral transmission, internal thin oil lubrication system, and curved air duct. It has high grinding efficiency and large output, and is widely used in heavy calcium carbonate processing, power plant desulfurization, large-scale non-metallic mineral powder production, and building materials and chemical industries. Its working principle is:

The qualified materials after crushing are uniformly and continuously fed into the main grinding chamber by a variable frequency belt feeder for grinding. The materials after grinding are fed into the powder selection machine by the airflow of the fan for classification. Under the action of the analysis machine, materials that do not meet the fineness requirements fall into the grinding chamber for re grinding. Qualified materials then flow through the pipeline into the cyclone powder collector for separation and collection, and are discharged through the discharge device to form finished powder. The separated airflow enters the fan through the return air duct at the upper end of the cyclone dust collector. The system operates under positive and negative pressure conditions, and the equipment is equipped with a pulse dust collector, which meets national environmental protection standards.

MTW European version grinding mill is a recommended equipment for large-scale industrial powder production, which can be used for grinding heavy calcium carbonate powder to produce higher quality and larger output finished materials.