CAJ | 학술논문

由于青海某贫硫金矿选厂磨矿钢球配比偏大，操作参数不合理，导致了磨矿分级系统磨矿效率低、处理量小、磨矿细度不够等问题。通过实验室前期试验并经球径半理论公式计算，确定现场补加球大小和比例。采用 JKsimMet 软件模拟工业试验流程，寻找磨矿分级回路最佳参数，进行工业试验。试验结果表明：JksimMet 软件可以较好地模拟现场磨矿分级回路，为现场优化提供参考和方案；一段磨处理量提高了6.5 t/h，球耗降低了14.29%，排矿细度增加了27.9%，P80降低了60.91%；二段磨排矿细度增加了31.3%，P80降低了13.31%，实现了磨矿效率提高，处理量增加，节能降耗的目的，磨矿分级系统得到了优化。
유우청해모빈류금광선엄마광강구배비편대，조작삼수불합리，도치료마광분급계통마광효솔저、처리량소、마광세도불구등문제。통과실험실전기시험병경구경반이론공식계산，학정현장보가구대소화비례。채용 JKsimMet 연건모의공업시험류정，심조마광분급회로최가삼수，진행공업시험。시험결과표명：JksimMet 연건가이교호지모의현장마광분급회로，위현장우화제공삼고화방안；일단마처리량제고료6.5 t/h，구모강저료14.29%，배광세도증가료27.9%，P80강저료60.91%；이단마배광세도증가료31.3%，P80강저료13.31%，실현료마광효솔제고，처리량증가，절능강모적목적，마광분급계통득도료우화。
Because the grinding ball is big and operating parameters are not reasonable in the the sulfur gold ore dressing plant of Qinghai Province,grinding efficiency is low in milling-classification operation system,the capacity is smaller and grinding fineness is bad.Based on the previous test in the laboratory and the calculation of the half-theory formula,the ball and ratio are determined.The JKsimMet soft is taken to simulate industrial test process to find the best operating parameters in milling-classification operation system and make industrial test. Good practice dictates that the JKsimMet soft can simulate the milling-classification operation and get a better result that provide a guidance for industrial experiment,the conclusions are obtain that the capacity of primary grinding increases by 6.5 t/h,metal consumption reduces by 14.29%,grinding fineness adds by 27.9%,P80 drops by 60.91%.The fineness grinding of the secondary raises by 31.3%.P80 cuts down 13.31%.The grinding efficiency is improved and the capacity is increased.Milling-classification operation system is better.