A safety monitor and protective device of hoist in local coal mine is introduced . it can indicate the movement and the position of the hoist vessel in the shaft directly , send out a signal slowing down the vessel in time . when the vessel is over - rolled up , the hoist will be braked automatically and immediately 本文介绍了一种地方煤矿提升绞车安全监测与保护装置，能直观地指示提升容器的运动及在井筒中的位置，设置了比较完善的电器保护系统，能及时发出减速信号，当发生过卷时能自动紧急停车。
Main product of this company includes more than 200 varieties and more than series such as mine shaft hoisting machine series , mine hoist series , dispatch hoist series , prop - pulling hoist series , building hoist series , flight conveyor series , heavy - load gear reducer series and electric equipment 公司主要产品有：矿井提升机系列，矿用提升绞车系列，调度、回柱绞车系列，建筑卷扬机系列，刮板输送机系列，重载减速机系列，电气控制设备等十几个系列近200多个规格品种的产品。
Abstract : a safety monitor and protective device of hoist in local coal mine is introduced . it can indicate the movement and the position of the hoist vessel in the shaft directly , send out a signal slowing down the vessel in time . when the vessel is over - rolled up , the hoist will be braked automatically and immediately 文摘:本文介绍了一种地方煤矿提升绞车安全监测与保护装置，能直观地指示提升容器的运动及在井筒中的位置，设置了比较完善的电器保护系统，能及时发出减速信号，当发生过卷时能自动紧急停车。
