3 Results and discussion 3.1 Impact of rotational speed and lifter shape on torque and power draw. Figures 5 and 6 compare our simulated results using the EDEM software for various rotation speeds and lifter shapes with the experimental data of torque and mill power reported in Bian et al. work. The ball mill fill level is 35%, the lifter height …
WhatsApp: +86 18221755073By conducting this comparative analysis, the aims of the study was to examine the impact of the new lifter's geometry and rotational speed of the mill on torque, power draw, …
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WhatsApp: +86 18221755073In this paper, we analyse the effect of changes in particle size and shape distribution (for both balls and rocks), lifter pattern and profile, and fill level on power …
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WhatsApp: +86 18221755073A variant of this method is to direct pebble-crushing circuit product to the ball-mill sump for secondary milling: while convenient, this has the disadvantage of not controlling the top size of feed to the ball-mill circuit. ... (176 rpm) and 184.0 kNm from base to top speed. Maximum accelerating torque is 175 percent. Operating Problems …
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WhatsApp: +86 18221755073The speed of ball mill rotation is a critical parameter which determines the grinding efficiency and the end product quality. The optimum speed will differ depending on the mill's diameter, the size and density of the grinding media, and the material being ground. Operating at the proper speed guarantees that the grinding media will transfer ...
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WhatsApp: +86 18221755073DOI: 10.1016/J.MINENG.2016.12.014 Corpus ID: 113697791; Effect of lifters and mill speed on particle behaviour, torque, and power consumption of a tumbling ball mill: Experimental study and DEM simulation
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WhatsApp: +86 18221755073A laboratory-scale ball mill with an internal diameter of 573 mm and axial length of 160 mm is used in this study.The components of the experimental setup are shown in Fig. 3.The rated power of the motor is 1.5 kW and the rated speed is 1400 rpm.A reducer is used to decrease the speed of the shaft, and the reduction ratio is 23; thus, …
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WhatsApp: +86 18221755073The determination of power is the only accurate means of measuring torque. Dry-Batch Ball Milling with Various Ore Charges ... The peak of the power curve shown in table 14 at 150 pounds of ore is contrary to what would be predicted from the findings in wet grinding, in which the peak was reached with the small charge. ... nevertheless the 90 ...
WhatsApp: +86 18221755073By means of a flange type torque sensor, the torque signal is recorded when the motor is driving a constant torque load, (Fig. 1 (a)), and a ball mill, (Fig. 1 (b)). The presence of an oscillating component of around ± 2 Nm, superimposed to the average value, can be observed in the case of constant torque load.
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