The fracture causes of joining bolt joined between feeder and quill shaft of ball mill are biggish gap between feeder and quill shaft, defective sealcone 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。
2
The seal of high pressure release cone piston had been resolved, The examination proved that cone piston has long life and reliable work. The cone piston will be applied widely in the future.
解决了高压释放式活塞的密封问题，通过实验证明锥体活塞工作可靠、寿命长，有比较好的应用前景。
3
The fracture causes of joining bolt joined between feeder and quill shaft of ball mill are biggish gap between feeder and quill shaft, defective sealcone washed by ore pulp. etc.