影响介质消耗的主要因素有:磁铁矿粉质量，产品带介量，磁选机回收效率等，其中磁铁矿粉质量是最主要的影响因素。通过对西曲选煤厂使用过的多家磁铁矿粉进行研究，分析不同质量磁铁矿粉在不同磁场强度下磁性物含量的变化，以及温度对磁铁矿粉的磁性物含量的变化的影响，结合生产中的消耗情况，找出满足生产需要的磁铁矿粉的主要指标。
The main factors of influencing medium consumption is: the quality of magnetite powder, products with dielectric, magnetic separator efficiency of recovery, the quality of magnetite powder is the main impact factor. Through the research of several magnetite in Xiqu preparation plant used, analysis of the changes of different quality of magnetite powder in different magnetic field strength magnetic content, as well as the influence of temperature on the changes of magnetic content of magnetite powder, combined with the consumption situation of production, find the main indicators of magnetite powder production needs.
通过采用水力旋流器，大锥角水介质旋流器与旋流重选柱对屯兰选煤厂选煤用磁铁矿粉进行分选对比试验，试验结果表明：随着单锥结构水介质旋流器底锥锥角增大，底流粗粒产品全铁品位提高，SiO2含量降低。对于粗粒级磁铁矿粉，复锥结构的旋流重选柱提铁降硅效果优于单锥120°锥角结构水介质旋流器。
Through the use of hydrocyclone, large cone water medium cyclone and cyclone gravity column in Tunlan Coal Preparation Plant of coal separation experiment with magnetite, test results show that: with the structure of single cone hydrocyclone bottom cone angle increases, increase iron grade underflow coarse grain products, decreased the content of SiO2. For coarse - grained magnetite powder, compound hydrocyclone cone structure gravity column iron improvement and silicon reduction effect is better than that of single cone 120 ° angle structure of water medium cyclone. |
