冲击反循环钻机的研制及应用

Manufacture and application of reverse circulation percussion drilling rig

新型冲击反循环钻机ＣＺＦ－１２００具有运转可靠，耐疲劳性能良好，操作简单，维修方便，钻进效率高，适应于各种地层等特点；其配套机具如反循环砂石泵、泥浆净化设备、套筒式钻头和排渣管、深墙接头用液压双反弧钻具等工艺合理。

A new type of the reverse circulstion percussion drilling rig Model CZF-1200 is introduced, which is reliable in operation,easy to operate and maintain,and has gial fatigue resistance and high efficiency. It is suitable for construction of anti-seepage diaphragm wall in hydro project and can meet various kinds of geologic strain. The corollary facilities such as reverse circulation sand and gravel pump, slurry purifying equipment, telescopic bit, san and gravel discharge pipe, and hydraulic double inverted arch bit for wall junction are reasonably designed.