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国产HZ型抓岩机为中心回转式抓岩机,与其它类型的大抓岩机相比,有结构紧凑、占据井筒面积小、动力单一、维护方便等优点。但也存在升降吊盘次数多、距掘进工作面过远影响抓岩效率等缺点。从砌壁角度看,由于该抓岩机是固定在吊盘下部的,使吊盘的下层盘不能降落到掘进工作面,因而给掘砌单行作业的砌壁工艺带来很大困难(邯邢九龙口主、副井采用了多层吊盘与悬空砌壁的工艺,已在掘砌平行作业中成功的解决了这一矛盾),根据外地使用经验,结合我处在石台煤矿新副井的施工具体情况,也曾为解决此问题提出了三个施工方案,经
Compared with other types of big rock grab machines, the domestic HZ type rock gripper is the center rotary rock gripper, which has the advantages of compact structure, small occupied borehole area, single power and convenient maintenance. However, there are also many problems such as the number of hoisting and lowering cranes, the long distance from the heading face and the efficiency of grasping rock. From the point of view of the wall, it is very difficult to excavate single-wall work because the grasper is fixed on the lower part of the hanging plate, so that the lower plate of the hanging plate can not be dropped to the heading face The main and auxiliary wells of Jiulong adopted the technology of multi-layer hanging and hanging wall, which has successfully solved this contradiction in the parallel operation of digging and digging. Based on the field experience and combining with the new auxiliary shaft The construction of the specific circumstances, but also to solve this problem put forward three construction programs, after