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(一)经过几年来的生产实践表明,矿用土火箭弹具有结构简单、加工容易、使用方便、成本低廉和效果良好等特点。用于处理漏斗、溜井和采场卡结悬空,收到显著效果,与过去的处理方法相比前进了一大步。但是由于金属矿山的溜矿井,通常在距闸门口2～8米处有一拐弯;当矿石卡结在溜井拐弯上部时,仍然需要有人员进入溜井中安装和发射火箭弹。即使采取一些措施,也并不能完全确保人身安全。为了全面可靠地保障工人人身安全,研究一种不需人员进入溜井而又能发射火箭弹来处理卡结在溜井拐弯上部矿石的装置,是很有必要的。为了解决土火
(A) After several years of production practice shows that mining rockets have the characteristics of simple structure, easy processing, easy to use, low cost and good effect. Used to handle funnels, slipways and stopes to hang open and receive significant results, a big step forward compared to past approaches. However, due to the metal mine slippery mines, usually a corner from 2 to 8 meters away from the gate; when the ore stuck in the bend above the turn, still need to have personnel into the chute to install and launch rockets. Even taking some measures does not completely ensure personal safety. In order to fully and reliably protect the personal safety of workers, it is necessary to study a device that does not require personnel to enter the chute but can launch rockets to deal with the ore stuck in the upper part of the slip well. In order to solve the soil fire