苏联雅罗斯拉夫工学院,研制了采用循环水系统洗掉非金属矿物材料中杂质的工艺和设备。为了加快洗涤水的澄清过程,最好利用表面活性物质——聚丙烯酰胺水溶液(浓度0.25％,每升0.02～0.04克)。这样,可节约耗水量约95％～98％,并可在循环水振动清洗机中形成闭合工作循环。 The Yaroslav Institute of Technology in the Soviet Union has developed a process and equipment for the removal of impurities from non-metallic mineral materials using recycled water systems. In order to speed up the rinsing process of the wash water, it is best to use a surface active material-polyacrylamide aqueous solution (concentration 0.25%, 0.02-0.04 g per liter). In this way, the water consumption can be saved by about 95% to 98%, and a closed working cycle can be formed in the circulating water vibration washing machine.