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探讨了湿式磨矿过程中矿浆流变特性对钢球磨损的影响规律 .研究结果表明 ,矿浆粘度随矿浆体积分数的增大而增大 ,当矿浆体积分数大于 50 %时 ,矿浆粘度急剧增大 .矿浆粘度是影响钢球磨损率的主要流变学因素 ,当矿浆粘度介于 50 0～ 1 0 0 0 m Pa .s时 ,钢球的磨损率出现最大值 .当矿浆体积分数较高时 ,添加化学助剂 Na NO2 ,钢球的磨损率降低 ,磨矿效率提高 .控制磨矿条件能改善矿浆的流变学特性 ,使钢球表面的罩盖层厚度处于最佳值 ,从而提高磨矿效率 ,降低钢球的磨损率
The effects of the rheological properties of the slurry on the ball wear during wet grinding are discussed.The results show that the viscosity of the slurry increases with the increase of the volume fraction of the slurry and the viscosity of the slurry increases sharply when the volume fraction of the slurry is more than 50% The slurry viscosity is the main rheological factor that affects the wear rate of the steel ball, and the wear rate of the steel ball reaches its maximum when the viscosity of the slurry is between 50 0 ~ 100 mPa · s.When the volume fraction of the slurry is high , The addition of chemical additives Na NO2, steel ball wear rate decreased, grinding efficiency increased control of grinding conditions can improve the rheological properties of the slurry, so that the surface of the ball cap thickness at the best value, thereby increasing the grinding Mine efficiency, reduce the ball wear rate