井口是煤矿上下人员，运输设备、物料的交通“咽喉”，兖矿集团唐村实业公司运转工区井筒维修班，就是“咽喉”上的守门神。10年来，该班安全提升煤炭300多万吨、矸石150多万车，提升人员160多万人次，从未发生过提升事故，为矿山生产建设立下了汗马功劳，被职工亲切地誉为“矿 Wellhead is coal mine up and down personnel, transportation equipment, materials traffic “throat”, Yankuang Group Tangcun Industrial Company operating area wellbore maintenance class, is the “throat” on the goalkeeper. Over the past 10 years, this class has safely raised the coal production by more than 3 million tons, more than 1.5 million coal refuse trucks and raised more than 1.6 million passengers. It has never happened before and has made significant contributions to mine production and construction. It was praised by workers as "mine