我局古城煤矿主井设计年最大提升能力为120万t,提升机型号为2JKM-2.8×4-Ⅲ,提升容器为9t箕斗。随着机械化程度提高和综采放顶煤技术的应用,煤炭产量逐年提高,提升能力明显不足,生产环节中出现“卡脖子”现象,制约了矿井的发展。为此对主井提升系统进行了技术改造。 The maximum annual design capacity of main shaft of Gucheng Mine in our bureau is 1.2 million tons, the model of hoisting machine is 2JKM-2.8 × 4-Ⅲ, and the lifting vessel is 9t of skip. With the improvement of mechanization and the application of fully mechanized top coal caving technology, the output of coal has been increased year by year, and the improvement capability has been obviously inadequate. The phenomenon of “kerchief ” appears in the production process, which restricts the development of mines. To this end, the main shaft hoisting system has been reformed.