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深孔分段爆破法是一种有效的天井掘进方式。KY-120型地下牙轮钻机系主要用于天井钻、扩深孔的设备。经过约一年的工业试验,证明它达到了设计目的,满足了地下矿山用深孔分段爆破法掘进天井的急需。该机已通过部级鉴定并获准推广。本文叙述了该钻机有关参数的选择,钻机结构、应用范围、使用效果,并列有其试验所达的技术经济指标。
Deep-hole blasting is an effective method of tunneling. KY-120 underground cone drill system is mainly used for patio drilling, deep hole expansion equipment. After about a year of industrial testing, it proved that it reached the design objective, to meet the urgent need of underground mines with deep-hole section blasting method for tunneling. The aircraft has passed ministerial identification and was approved to promote. This paper describes the parameters of the rig selection, rig structure, scope of application, the use of results, and listed the test of its technical and economic indicators.