刚性级联物理性能初步理论研究

Primary Theory Study on Physical Performance of Rigid Cascade

本文建立了刚性级联模型,该模型采用双管道结构,各级贫料安装管塞。刚性级联可调节的参数很少,影响级联的因素主要包括管塞孔径和级联的供料流量的变化,因此本文主要针对这两种因素进行了比较分析。研究结果表明:随级联供料流量的增加,级联各级的供料流量也逐渐增加,级联产品丰度逐渐减小,对贫化段的影响较显著;浓化段孔径加工精度对级联的影响小于贫化段,越往精料端影响越小;加工的孔径尺寸偏离设计值时,可选择小尺寸的孔径。

The model of rigid cascade was built up in this paper.The model has two pipe lines,and there is waste orifice plate in each stage of rigid cascade.The parameters influencing effect of rigid cascade are mainly orifice plate size and feed flow.The two factors were analyzed and compared.The calculation results indicate that the product concentration minishes with the increase of feed flow.The influence on waste was obvious.The influence of orifice plate size on the product in cascade is larger than that on waste.When the orifice plate size deviates to the original size,smaller size is chosen.