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我矿粗选厂20号皮带机是全厂运输的关键部位,运输量大,矿石块度大(最大200毫米),运输皮带长(154米)。由于流程的要求,20号皮带机与13号皮带机的平面布置相互垂直,所以20号皮带机的受矿端受到13号皮带机卸矿端矿石的纵向冲击,造成20号皮带机尾部严重跑偏,胶带磨损大,下托辊支架磨断,尾轮架经常磨断,维修频繁(平均每月下托辊支架至少要更换2次,胶带使用期只有24个月,尾轮架每年至少要维修4—5次),直接增加成本,影响生产的正常进行。为了解决上述问题,1984年3月对该皮带尾部进行技术改造。开始利用尾轮调节来调整皮带的跑偏,由于矿石块度大,下矿点高,对皮带纵向冲击力随块度大小而变化,很难控制尾轮调整,防止皮
The No. 20 belt conveyor of our roughing plant is the key part of the whole plant. It has a large volume of transportation, large ore blocks (up to 200mm) and long conveyor belt (154m). Due to the requirements of the process, the plane layout of No. 20 belt conveyor and No. 13 belt conveyor are perpendicular to each other, therefore the ore end of No. 20 belt machine is subjected to the vertical impact of ore on the side of No. 13 belt machine unloading, Partial, large wear tape, under the roller holder wear off, frequent wear and repair of the rear wheel frame, frequent maintenance (average monthly under the roller holder to be replaced at least 2, the tape life of only 24 months, Maintenance 4-5 times), a direct increase in costs, affecting the normal production. In order to solve the above problems, in March 1984 the tail of the belt for technical transformation. Start using the tail wheel adjustment to adjust the deviation of the belt, due to large ore block, the next mine point, vertical impact on the belt size with the block size changes, it is difficult to control the tail wheel adjustment to prevent skin