河北铜矿选矿厂的磨矿分级循环,是由球磨机和螺旋分级机构成一段闭路。其溢流产品的浓度和细度直接影响选别系统的技术指标。根据生产要求,应该把分级机溢流浓度控制在规定数值之内,要求浓度波动范围为±1.5%,以保证分级溢流的细度。在实现分级机溢流浓度自动控制之前,其调节浓度的操作方法是由人工取样,用矿浆浓度壶称重、查表来求得浓度数值。如果与 Hebei copper ore beneficiation plant grading cycle, by the ball mill and spiral classifier form a closed circuit. The overflow product concentration and fineness directly affect the technical specifications of the sorting system. According to the production requirements, the grading machine overflow concentration should be controlled within the specified value, the required concentration fluctuation range of ± 1.5%, in order to ensure the grading overflow fineness. In the grading machine to achieve automatic control of overflow concentration, the adjustment of the concentration of the operating method is manually sampled, with a pulp concentration pot weighing, look-up table to obtain the concentration value. If and