精确化装补球方法的应用效果研究

基于现有装补球理论,研究了精确化装补球方法,提出了用作图法补球的方法,研究了该装补球方法在云南大红山Φ3.6m×4.5m磨机中的应用。经应用试验研究显示,该方法在磨矿产品细度提高6.02%的前提下磨机台时处理能力提高了18.50%;矿物单体解离度显著提高,其中铜矿物的单体解离度提高9.76%,铁矿物的单体解离度提高10.83%;过粉碎有所减轻;铜精矿和铁精矿的回收率分别提高了1.41%和7.09%,铜精矿和铁精矿品位分别提高了0.55%和1.35%;钢球消耗和磨矿能耗显著下降,其中球耗下降了16.67%,电耗下降了18.44%。证明了精确化装补球方法用于指导生产实际中的装补球以全面改善磨矿效果的科学性和可靠性。

STUDY ON THE APPLICATION EFFECTS OF THE METHOD OF ACCURATE BALL-LOAD-ADDITION

Based on the existing theory of ball-load-addition,the paper studies on a new method of accurate ball-load-addition,and among which,a new scheme of adding balls according to diagraphy is put forward.The application of the method in grinding mill of Ф3.6m×4.5m in Dahongshan mineral processing plant in Yunnan Province is also studied.The application test study shows,by using the new method in the grinding mill,the processing capacity of the grinding mill per hour has been improved by 18.50% on the basis of 6.02% improvement of the fineness(-74μm%) of the grinding product;and the mineral liberation degree of copper has been improved notably by 9.76%,and of iron by 10.83%;over crushing of the mineral is somewhat mitigated;the grades of copper concentrate and iron concentrate have 0.55% and 1.35% improvement respectively,and their recovery 1.41% and 7.09% increase respectively;the ball wear and the energy consumption of handling unit amount of mine are decreased markedly by 16.67% and 18.44% respectively.It demonstrates that the new method of accurate ball-load-addition in the application of guiding the ball-loading-adding in practice to improve the grinding effect comprehensively is scientific and reliable.