Optimization Study of Grinding Energy Consumption of Tower Mill Based on Response Surface Method
In order to optimize the energy consumption of the tower mill,the TM200-2.2 tower mill is used to test an iron ore after high pressure roll grinding.The energy required for the newly generated-74 μm grade product after grinding is used as the evaluation standard for energy consumption optimization.The ef-fects of medium filling rate,material-ball ratio and agitator speed on the energy consumption of the newly generated-74 μm grade product are studied by single factor test and response surface method.The experi-mental results show that the medium filling rate optimized by single factor test is 70%,the ratio of material to ball is 0.20,and the rotation speed is 350 r/min,the energy consumption of the newly generated-74 μm grade product is 22.89(kW·h)/t.The medium filling rate optimized by the response surface method is 70.75%,the material-ball ratio is 0.20,and the rotation speed is 370.03 r/min.The predicted energy con-sumption of the newly generated-74 μm grade product is 21.59(kW·h)/t,and the average value of the veri-fication test is 21.61(kW·h)/t,which is very close to the predicted value.The response surface method is used to optimize the energy consumption,which is 5.33%lower than that of the single factor test.
万方数据
维普
