Ball mill for grinding activated phthalocyanine blue pigment crude product

The invention relates to the technical field of material crushing, and discloses a ball mill for grinding activated phthalocyanine blue pigment crude products, the ball mill comprises a ball milling cylinder, symmetrical end covers are arranged at the two ends of the ball milling cylinder, the ball milling cylinder is filled with materials, and the ball milling cylinder is filled with grinding balls; a positioning rod is arranged at the top of the ball milling cylinder, socketed pipes are uniformly distributed on the positioning rod, torsional springs are arranged between the socketed pipes and the positioning rod, and impact blocks are arranged on the socketed pipes and are used for hindering high-speed rotation of the milling balls. Through high-speed rotation of the ball-milling cylinder, the grinding balls can reach the highest position of the ball-milling cylinder along with the ball-milling cylinder under the centrifugal force, the mechanical energy of the grinding balls is improved, then the grinding b