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目前我国立井井筒施工提升装置多数采用JK系列单绳交流提升机单钩吊桶提升,配用TKD—A系列电控设备。由于井筒不断延深,提升终点经常改变,给使用减速段限速保护装置和动力制动自动投入装置带来很多困难,甚至无法使用。结果因墩吊桶造成的人身伤亡事故时有发生。为严格执行《煤矿安全规程》第392条规定、杜绝墩吊桶事故,我公司从1982年开始对施工期间的提升机电控系统作了如下改进。 1.单钩吊桶提升向上运行与双钩提升运行情况相同,减速开关、速度给定凸轮板按
At present, most of the vertical well shaft construction hoist devices in China use JK series single rope AC hoist single hook bucket to enhance, equipped with TKD-A series of electronic control equipment. Due to the continuous deepening of the wellbore, the end point of the lifting often changes, which brings many difficulties or can not even be used to use the speed-limiting section speed limit protection device and the dynamic brake automatic feeding device. As a result of pier bucket caused by personal injury accidents have occurred. In order to strictly implement the provisions of Article 392 of “Coal Mine Safety Regulations” and eliminate the accident of hanging bucket, our company made the following improvements to the hoist electromechanical control system during construction from 1982. 1. Single hook buckets to enhance the upward operation and double hook lift the same operation, deceleration switch, the speed given cam plate