BALL MILL Russian patent published in 1995 - IPC

FIELD: chemical industry. SUBSTANCE: ball mill has fixed hosing 1 and separator 3 installed coaxially on shaft 2. Separator 3 has circular slots 8 on outer surface with balls 9 freely fitted in slots and ribs 7 on side surface arranged between walls 10 of slots 8. Separator is installed with clearance relative to inner surface 11 of housing 1. Clearance formed between side surface of separator 3 and inner surface 11 of housing 1 is greater than diameter of ball 9, but less than 1.7 diameter of ball. Separator 3 is made in form of disks 4 with end face cams 5 fixed on shaft 2 and bushings 6 installed between disks 4. Slots 8 for balls 9 are formed by side surfaces of bushings 6 and surfaces of end face cams 5 adjacent to bushings which are square to each other and arranged at equal distances relative to each other. EFFECT: increased service life of mill. 3 cl, 3 dwg