GB746716A - Ball crusher - Google Patents

Abstract

746,716. Ball mills. CENTRE D'ETUDES ET DE RECHERCHES DE L'INDUSTRIE DES LIANTS HYDRAULIQUES, and JOISEL, A. May 3, 1954 [May 28, 1953], No. 12845/54. Class 59. In a horizontal ball crusher comprising several rotatable crushing tubes arranged planetarily on a rotatable balanced frame, the frame and crushing tubes rotate in opposite directions and the In the discontinuous crusher shown in Fig. 1, a frame 2 supports the crushing tubes 3, 4, the shaft 5 of the frame being driven by a motor 6 while a second motor 7 drives a pulley 8 freely mounted on the shaft 5, the pulley 8 driving the crushing tubes by means of pinions 9, 10 and chains or by means of gears. The motors 6, 7 are provided with wattmeters 52. A single motor may be substituted for the motors 6, 7. The crushing tubes may be arranged on the shaft 5 in several concentric systems ; they can also be placed on the frame one after another parallel to the shaft. Each crushing tube can be divided lengthwise into compartments. In the continuous crusher shown in Fig. 2, the crushing tubes 25, 26 are rotatably mounted in cheeks 23, 24 of a frame which is freely mounted on a shaft 31, the frame being driven from a first motor through the cheek 23 which is shaped as a pulley, and the crushing tubes being driven from a second motor through a pulley 41 and pinion 42 carried by the shaft 31, the pinion 42 meshing with pinions 43, 44 carried by the crushing tubes. Material is fed to the crushing tubes by means of a fixed hopper 34 and a rotary distributer 32, 33, and is discharged from the tubes through ducts 35, 36 into a fixed collector 38 provided with a discharge opening 39. The crushing tubes may be provided with screens 45, 46.