Effects of Different Factors on Molybdenum Ore Grinding after Adding Grinding Aids
In order to further explore the influence of different factors on the grinding effect of molyb-denum ore after adding grinding aids,taking Yichun Luming Molybdenum Mine as the research object,the L9(33)orthogonal test is designed with grinding concentration,medium filling rate and grinding time as vari-ables.At the same time,different grinding aids are added to each group to analyze the influence of three fac-tors on the grinding effect after adding grinding aids.The results show that when no grinding aid is added,the order of influence on the grinding efficiency of molybdenum ore is grinding time>grinding concentration>medium filling rate,and the optimal combination is grinding concentration 55%,medium filling rate 30%and grinding time 7 min.After adding grinding aids,when grinding aids interact with grinding concentration and medium filling rate,the influence of medium filling rate and grinding concentration on grinding efficien-cy varies with the type of grinding aids.When the grinding concentration is 62.5%,the medium filling rate is 27%,and TEA is added,the proportion of-0.074 mm is the most,and the grinding effect is the best.Under the condition of the same grinding time,the addition of grinding aids makes the particle size of molybdenum ore after grinding move to a finer direction.Under the condition of grinding concentration of 70%,medium filling rate of 24%and grinding time of 7 min,the grinding effect after adding four grinding aids is improved to varying degrees,and the utilization rate of mill is better.Different types of grinding aids interact with grinding concentration and medium filling rate,which affects the grinding effect.When the grinding time is constant,when the grinding concentration and medium filling rate interact,the grinding aid is the main fac-tor affecting the grinding effect.Therefore,the use of different grinding aids during grinding and the corre-sponding change of grinding conditions are more conducive to improving grinding efficiency and reducing en-ergy consumption.This study can provide a theoretical reference for the optimization of grinding process.
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