美国南达科他州休伦的Huron Mfg公司最近制造了一种Easi-Miner 1224型采煤机。这种新型采煤机能采掘距底层数英寸内的煤,把煤破碎成预定的大小,不需经过初碎工序,即可直接装入运煤车,全部过程一次完成,每小时产煤达2,800吨。无需打眼放炮,全部操作只要一名工人 Huron Mfg of Huron, South Dakota, USA, recently built an Easi-Miner 1224 coal shearer. The new shearer mines coal within a few inches of the ground floor and breaks the coal into pre-sized pieces that can be loaded directly into a coal-handling car without a primary crushing process, completing the entire process once, producing up to 2,800 bbl Ton. No need to drill, all operations as long as a worker