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为了普遍提高煤矿岩巷掘进速度,中国统配煤矿总公司范维唐副总经理明确指示:1991年先搞“三小”光爆锚喷岩巷掘进作业线示范性作业点,取得成效后,全国推广。为此,中国统配煤矿总公司技术发展局于今年5月中旬,下达了由“煤炭科学总院上海分院和衢州煤机厂以最快速度研制硬岩顶板气动锚杆钻机”的任务。现主机已于今年7月初制造完毕,并在衢州煤机厂召开了M20型硬岩锚杆钻机首批产品出厂验收会议。与会代表一致认为:该机总体设计合理,结构简单,保留了主机ZY—24型凿
In order to generally improve the speed of tunneling in coal mines, the deputy general manager of China General Coal Mine Corporation, Fan Wei Tang, explicitly instructed that in 1991, the pilot project of “three small” light-blasting rock-blasting tunneling will be carried out first. After the project has achieved success, the national promotion . To this end, the China National Coal Council Corporation Technology Development Bureau in mid-May of this year, issued by the “Coal Science Institute of Shanghai Branch and Quzhou Coal Machinery Factory to develop hard rock roof pneumatic bolt rig” task. Now the host has been completed in early July this year, and held in Quzhou Coal M20-type hard rock bolt rig first batch of factory acceptance inspection meeting. Delegates agreed that: The aircraft overall design is reasonable, simple structure, retaining the host ZY-24 type chisel