Application Research on Replacing Steel balls with Ceramic Balls under the "Double Carbon Target"

Abstract

In this paper, the effect of ceramic ball replacing steel ball on grinding efficiency, energy consumption, material consumption and separation index was studied for the grinding process of Daye Noranda converter slag. The laboratory studies presented that the grinding efficiency decreases with the increases of ceramic ball replacement ratio in the process of primary and secondary grinding, however, However, the grinding efficiency was hardly influenced when the ceramic ball volume proportion is controlled within 40%, and the ore feed need to be reduced to 80% of the whole steel ball which can achieve the same grinding efficiency as the whole steel ball in the case of all-ceramic ball grinding. The industrial test results showed that grinding efficiency, reagent consumption and copper concentrate index are not affected when the proportion of ceramic balls in vertical mill is 14% to 38%, but the energy consumption is reduced to 89.90% and 79.60% respectively of the whole steel ball during grinding, and the loss of grinding medium is reduced in this process. This The research results provide a new idea for energy saving and consumption reduction in the production process of converter slag concentrator.

Keywords

• ceramic ball
• converter slag
• grinding efficiency
• energy conservation