摘要
由重介质选矿介质系统的水量平衡，导出了介质系统的动态特性数学模型为一阶线性微分方程，方程中的时间常数Ｔ０、容量系数Ｒ和放大系数Ｋ０均具有明确的物理意义。研究了系统受干扰后介质密度的稳定过程。返回系统内的已净化的介质浓度不能过低也不宜过高，否则密度自控系统就会“失灵”，影响分选指标。
Based on the water volume balance of medium system of the heavy medium separation,the dynamic model of medium density is deduced. The time constante T0,capacity coefficient R and enlarge coefficient K0 of the model all have definite physical meanings. The stabilizing process of medium density after the system being disturbed is described. The concentration of purified medium must be maintained at an apropriate level or the density self-controlled system will be out of order,affecting the separation target.
关键词
重介质选矿
数学模型
自动控制
Dense medium separation
Mathematic model
Automatic control
