大吉山钨矿选矿厂近两年来,对厂内水路进行了改进。通过半年多的生产实践证明,水路改进取得了良好的效果。他们主要采取了如下几种措施。1.用高效水泵代替老式水泵。过去三个系统需开2台225千瓦和1台180千瓦的水泵,合计功率630千瓦/时。采用高效水泵后,只需开1台300千瓦和1台180千瓦的水泵,合计功率480千瓦/时。改进后,可节约水泵开动功率150千瓦/时,一年可节电108万度,计7.56万元。一年即可收回水路改进的全部投资。备用水泵为保证生产正常运行创造了条件。2.改三个系统全供水为分系统供水。在重选原矿不足或电力不足时,过去开一、两个系统,供 Dajishan tungsten ore dressing plant in the past two years, the waterway has been improved. Through more than six months of production practice has proved that waterway improvement has achieved good results. They mainly take the following measures. 1. Use efficient pumps instead of old ones. In the past three systems, two 225 kW and one 180 kW pumps were required, totaling 630 kWh. After the use of efficient pumps, just open a 300 kW and a 180 kW pump, total power 480 kW / h. After the improvement, it can save the pump starting power of 150 kW / h, saving 1.08 million kWh a year, accounting for 75,600 yuan. One year to recover all the investment in waterway improvement. Standby pumps to ensure the normal operation of production to create the conditions. 2. To change the three systems for the whole system of water supply. In the re-election of ore shortage or lack of electricity, the past one or two systems for