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由我局705地质大队研制的“DuJ-1型金刚石钻进故障报警自动提升装置”，于一九八四年五月在局组织的技术鉴定会上通过了技术鉴定。该装置是利用浮子流量计、可控硅及电磁换向阀等电子元件和液压元件组成，以电动机为动力的油压小口径钻机钻进故障自动报警及提升的多功能装置，根据可以调整的冲洗液流量下限及电动机负载电流值上限执行动作。当送入孔内的冲洗液量下降，等于或低于下限，或电动机负载电流达到或超过上限时，装
The “DuJ-1 diamond drilling fault alarm automatic lifting device” developed by our bureau 705 geological brigade passed technical appraisal at the technical appraisal meeting organized by the bureau in May 1984. The device is the use of float flowmeter, SCR and solenoid valve and other electronic components and hydraulic components, motor-driven hydraulic small-diameter drill failure alarm and upgrade multi-function device, according to the adjustable Rinse liquid flow rate lower limit and motor load current value upper limit execution action. When the amount of flushing fluid into the hole decreased, equal to or lower than the lower limit, or motor load current reaches or exceeds the upper limit, the equipment installed