井下移动式混凝土充填系统的应用

李闯　李江

摘要：

针对矿山采空区的处理，采用井下移动式充填系统，具有投资小、方便快捷等特点.井下移动式混凝土充填系统采用混凝土输送泵进行井下流动充填作业方式，充填时将充填料通过矿车运输至充填地点经人工向搅拌机受料斗中定量供料，充填料浆用水来自井下水仓，通过调节阀向搅拌机定量供水，充填材料采用强制式搅拌机间歇式搅拌，搅拌均匀的充填料浆输送给混凝土泵受料斗，然后通过混凝土输送泵送至采场进行充填.经过实践检验，井下移动式混凝土充填系统在充填效果上能够满足生产需求，在未来矿山充填系统的发展上具有良好的前景与意义，具有一定的实用性和经济性.

关键词：

金属矿山； 采空区； 井下移动式； 混凝土； 充填系统

中图分类号： TD 853文献标志码： A

Abstract：

For the treatment of mine gob，the underground mobile filling system is convenient，quick and of small investment. The filling system of underground mobile concrete works in the way of flow filling by using pump.During the process of filling，filling materials were transported to the filling stations by car and blenders were feeded quantitatively and manually.Then filling slurry water from underground water storehouse was supplied quantitatively by adjusting the valve to supply water to the mixer quantitative with forced mixer intermittent stirring. Filling materials were mixed in the means of batch mixing forcibly. The mixed filling slurry was delivered to the concrete pump hopper evenly，then was transported to the filling stope through concrete. Practice proves that underground mobile concrete filling system can meet the production requirements and the development of mine filling system has a certain practical and economic significance in the future.

Keywords：

metal mine； gob area； underground mobile； concrete； filling system

某金矿是某公司的主要生产矿区，其采矿量占全矿的70%左右，采矿方法为浅孔留矿法.开采水平已由海拔1 118 m下降至618 m，深度500 m以下，走向长度1 250 m以上.矿区经过多年的空场法开采，形成的空区面积已达625 000 m2.由于大面积空区未进行处理，目前已出现明显的地压活动，产生严重的安全隐患，直接影响深部的矿体开采.结合上部各中段开采的实际情况及空区的分布状态，对上部采空区进行安全处理，在安全条件有保障的前提下，最大限度地回收上部的高品位残矿和矿柱.同时形成人工保安矿柱，保证深部开采的安全性[1-3].

1井下移动式混凝土充填系统

井下……