基于黏结理论的球磨机梯形衬板的设计

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Abstract For the ball mill for grinding, the lifting bars with the same height (numbered 20-20) and 3 kinds of lifting bars with different heights (numbered 20-18, 20-16, and 20-14) were designed. A four-dimensional modeling software Solid Edge was used to model those different types of ball mill lifting bars, and then the model was imported into EDEM to calculate the number of fractures of the BPM bond in the ore model and the cumulative energy received by the lifting bar and the cylinder, to study the effect of liner design on ball mill grinding efficiency and the wear of ball mill. The results show that compared with the model equipped with contour lifting bars (20-20), the number of BPM bond fractures of the ore model in the models equipped with high-and-low lifting bars(20-18, 20-16, 20-14) is higher, that is, the grinding efficiency is higher. Among them, the number of BPM bond breaks of the ore in the model 20-14 is increased by 11.3%, and the crushing effect is the best. Compared with the model 20-20, the cumulative energy of the lift bar and the cylinder of the model 20-18 and the model 20-14 are reduced by 18.6% and 28.1%, respectively, and the wear of the lift bar and the cylinder is reduced. However, the cumulative energy of the model 20-16 and the wear of the ball mill increase.

Key words： ball mill trapezoidal liner bonded particle model crush EDEM wear

Received: 20 October 2019 Published: 19 June 2020

ZTFLH:	TD435
	TP319

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	CHU Liang
	DONG Weimin
	GONG Meng

Cite this article:

CHU Liang,DONG Weimin,GONG Meng. Design of trapezoidal liner of ball mill based on bonding theory[J]. Materials Science and Engineering of Powder Metallurgy, 2020, 25(1): 86-90.

URL:

http://pmbjb.csu.edu.cn/EN/ OR http://pmbjb.csu.edu.cn/EN/Y2020/V25/I1/86

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