METHOD AND DEVICE FOR FINE GRINDING AND ACTIVATION OF MATERIALS Russian patent published in 1995 - IPC

FIELD: construction industry; chemical industry; food industry. SUBSTANCE: method involves delivery material and its carrier in the working zone of the grinding device, mechanical grinding, and activation of the material by grinding tools and ultrasonic field, and unloading of the material from the working zone. The ultrasonic field is generated in the working zone or outside the working zone by counterflows of the carrier of variable density created in countermovement of aerodynamically profiled parts or members of the working tools of the device. The device has body 1, working tools mounted on the body, loading branch pipe 5, unloading branch pipe 6, and ultrasonic radiators. EFFECT: higher efficiency. 15 cl, 13 dwg