我矿主并使用的两台１２ｔ提煤箕斗的垂直闸门，由于受到自身结构和空间尺寸的限制，溜煤口较窄，卸煤时间长．特别是煤较潮湿时，需要用钢钎捅才能慢慢卸出，使提升能力不能正常发挥（箕斗闸门结构如图１所示）。为此，我矿对箕斗卸煤口和垂直闸门的结构作了一些改进（如图 The vertical gate of the two 12t coal-feeding skip used by miners and mine is limited by its own structure and space size and has a narrower sliding coal mouth and a long unloading time. Especially when the coal is wet, it needs to be slowly unloaded by using the steel rod and poke, so that the lifting ability can not be exerted normally (the structure of the skip gate is shown in FIG. 1). For this reason, I made some improvements to the structure of skip coal dumps and vertical gates (Figure)