BALL MILL PULVERIZATION DRUM THAT USE BASALT

摘要

Disclosed therein is a pulverizing drum of a ball mill using a basalt. The pulverizing drum includes: an outer case (10) defining a contour of the pulverizing drum (D) of the ball mill; a fixed case (20) detachably mounted on the inner peripheral surface of the outer case (10) through coupling means (40) and having a receiving groove (22); and a drum lining (30) securely received in the receiving groove (22) of the fixed case (20) together with mortar (31) and made of a basalt material of a block unit, the drum lining including a concavo-convex part (32) formed on the inner surface thereof and having convex portions (32a) and concave portions (32b). The pulverizing drum can enhance a pulverization efficiency of the object to be pulverize since impact loads of the object and the ball are greatly increased and friction coefficient of the entire inside area of the pulverizing drum is kept uniformly so that the impact loads act uniformly, and prevent a damage of the concavo-convex part since the object and the ball dropping in a parabolic orbit do not directly collide against the drum lining.