大吉山钨矿原来使用的机械取样机是采用机械时间控制系统来控制取样时间的,由于该系统是单触发工作状态,可靠性较差,而且设备电气部件多,准确性低、故障率高,价格较贵,给取样计量工作带来许多不利因素,影响取样工作质量,针对这一问题,我们决定采用电子计时程控 The Daqishan tungsten mine original mechanical sampling machine adopts the mechanical time control system to control the sampling time. Since the system is in a one-shot working state, the reliability is poor, and the equipment has many electrical components, the accuracy is low, the failure rate is high, The price is more expensive, which brings many unfavorable factors to the sampling and measurement work and affects the quality of sampling work. In response to this problem, we decided to adopt electronic time-programmed control