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为适应南坑矿床的深度开采，我矿南坑竖井二队对提升 机卷筒进行了改造。经有关部门的验证认可，又经４个多月的试运行，效果良好，达到了预期的目的。 南坑竖井二队副井提升机型号为２ＪＫ－２．５ｘ１．２的单绳缠绕箕斗，配用减速机速比ｉ＝２０，配用电机功率Ｐｎ＝２８０
In order to adapt to the deep mining of Nankeng deposit, the second team of Nankeng shaft mine of mine rebuilt the hoist drum. Verified by the relevant departments recognized, after more than 4 months of trial operation, the effect is good, to achieve the desired purpose. Nankeng shaft two team auxiliary shaft hoist model 2JK-2.5x1.2 single rope winding skip, equipped with reducer speed ratio i = 20, with motor power Pn = 280