The fracture causes of joining bolt joined between feeder and quill shaft of ball mill are biggish gap between feeder and quill shaft, defective seal cone washed by ore pulp.

球磨机进料器与中空轴联接螺栓断裂原因是进料器与中空轴之间间隙过大，密封锥面受矿浆冲蚀而被破坏。

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The fracture causes of joining bolt joined between feeder and quill shaft of ball mill are biggish gap between feeder and quill shaft, defective seal cone washed by ore pulp. etc.

球磨机进料器与中空轴联接螺栓断裂原因是进料器与中空轴之间间隙过大，密封锥面受矿浆冲蚀而被破坏。

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Rupture to a reasonable fineness via promotion after machine, vibrating feeder average into ball mill, destruction of ore by ball mill, grinding.

破裂至合理细度后经由提拔机、振动给料机平均送入球磨机，由球磨机对矿石进行破坏、研磨。

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