目前,我国中小型矿山石方工程的穿爆工艺不断改进,特别是石灰石矿及有色金属露天矿,逐步推广大孔径高梯段穿爆新工艺,采用大孔径高梯段穿爆,不仅加快了开采进度,而且节约了施工费用。但由于没有合适的钻机,使这一新工艺受到限制。为满足用户的迫切需要,我们研制了KQS150型露天潜孔钻机(见图1),并于1985年12月通过了鉴定,现已正式投产。 At present, the process of wearing blasting of small and medium-sized mining stone works is continuously improved, especially the limestone mines and non-ferrous metal surface mines. The new technology of large-bore high-rise section blasting is popularized step by step. The use of large- Mining progress, but also save construction costs. However, the absence of a suitable rig limits the new process. To meet the urgent needs of users, we developed a KQS150 open-air downhole drilling rig (see Figure 1), and in December 1985 passed the appraisal, has now officially put into operation.