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随着钻探工艺不断革新，国内外早已开始采用液动冲击回转钻探。随后又发展了井下动力钻具（螺杆钻、涡轮钻）。以上新钻探方法有一个共同特点，就是要用泥浆泵作动力源，将液体的动能转换成机械能，所以要求提高泥浆泵的功率和泵压，并能在较大泵量、泵压工况下长期稳定工作。为此，我厂研制了BW-320型泥浆泵（见附图）。经过两年时间的室内台架性能测试和连续运转试验，验证该泵已经达到设计任务书要求。中国地质机械仪器公司于1987年9月22～23日在衡阳探矿机械厂召开了有15个单位、19名
With the continuous innovation of drilling technology, hydraulic impact rotary drilling has been started at home and abroad. Subsequently developed the underground power drill (screw drill, turbine drill). The above new drilling method has a common feature that is to use the mud pump as the power source, the kinetic energy of the liquid is converted to mechanical energy, it is required to increase the power and pump pressure of the mud pump, and in larger pump, pump pressure conditions Long-term and stable work. To this end, I developed a factory BW-320 mud pump (see photo). After two years of indoor bench performance test and continuous running test to verify that the pump has reached the design requirements of the book. China Geological Machinery Instrument Company in September 22 ~ 23, 1987 held in Hengyang Prospecting Machinery Factory has 15 units, 19