This model utilizes dry roller grinding for pulverization, ingeniously employing an arc-shaped grinding track and rationally applying the mechanisms of collision, compression, and grinding. It integrates pulverization and classification, allowing fine powder to be extracted promptly while coarse powder continues to be ground, preventing over-grinding of materials. It can replace Raymond mills for ultra-fine pulverization.
Applied to ground calcium carbonate, kaolin, marble, barite, gypsum, calcium oxide, calcium hydroxide, activated carbon, pitch coke, cracked carbon black, graphite, etc.
Working principle
The complete set of equipment for the JXM Ring Roller Micro Powder Mill (Medium-Speed Micro Powder Mill) includes: hammer crusher, bucket elevator, storage silo, electromagnetic vibrating feeder, main machine, classifier, diffusion-type double cyclone powder collector, pulse dust collector, high-pressure fan, and silencer.
The main motor drives the spindle and each layer of the turntable to rotate through a reducer. The turntable, via pins, drives dozens of ring rollers to roll and rotate within the grinding ring raceway. Large materials are crushed into small particles by a crusher and then sent to a storage bin by an elevator. An electromagnetic vibrating feeder evenly distributes the materials to the center of the upper turntable. Under the action of centrifugal force, the materials spread toward the circular edge and fall into the grinding ring raceway, where they are crushed by the ring rollers through impact, rolling, and grinding. After being crushed in the first layer, the materials fall into the second and third layers. The suction effect of a high-pressure centrifugal fan draws external air into the machine and carries the coarse powder, which has been crushed in the third layer, into a classifier. The vortex generated by the rotating turbine inside the classifier causes coarse particles to fall back for re-grinding, while fine powder flows with the airflow into a cyclone collector and is discharged through a discharge valve at its bottom as the finished product. The airflow containing a small amount of fine dust is purified by a pulse dust collector and then discharged through a fan and a silencer.