Heavy calcium carbonate multi-stage pulverizer

The utility model discloses a heavy calcium carbonate multi-stage pulverizer, which belongs to the technical field of heavy calcium carbonate processing, and comprises a pulverizer tank body for grinding heavy calcium carbonate, a plurality of support columns are welded on the bottom surface of the pulverizer tank body in an annular array manner to support the pulverizer tank body, and the support columns are welded on the bottom surface of the pulverizer tank body. A top cover is mounted on the top surface of the flour mill tank body in a detachable connection manner, an eccentric grinding mechanism is mounted in the funnel-type grinding disc, and the eccentric grinding mechanism comprises a first U-shaped mounting frame plate which is mounted on the inner wall of the flour mill tank body and is provided with a rotating motor on the top surface, and an eccentric grinding disc which is mounted through an output shaft of the rotating motor. The heavy calcium carbonate multi-stage grinding machine grinds and cr