Comparative Experimental Study on the Grinding Effect of a Lead-zinc Mine Through Vertical Mill and Ball Mill

REN Yingdong; XIAO Qingfei; ZHOU Qiang; XIE Haosong; ZHANG Zhipeng

doi:10.13779/j.cnki.issn1001-0076.2022.07.017

2023 Vol. 43, No. 1

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Article navigation > Conservation and Utilization of Mineral Resources > 2023 > 43(1): 73-78

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REN Yingdong, XIAO Qingfei, ZHOU Qiang, XIE Haosong, ZHANG Zhipeng. Comparative Experimental Study on the Grinding Effect of a Lead-zinc Mine Through Vertical Mill and Ball Mill[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 73-78. doi: 10.13779/j.cnki.issn1001-0076.2022.07.017

Citation:

REN Yingdong, XIAO Qingfei, ZHOU Qiang, XIE Haosong, ZHANG Zhipeng. Comparative Experimental Study on the Grinding Effect of a Lead-zinc Mine Through Vertical Mill and Ball Mill[J]. Conservation and Utilization of Mineral Resources, 2023, 43(1): 73-78. doi: 10.13779/j.cnki.issn1001-0076.2022.07.017

Comparative Experimental Study on the Grinding Effect of a Lead-zinc Mine Through Vertical Mill and Ball Mill

1.
School of Land and Resource Engineering, Kunming University of Technology, Kunming 650093, Yunnan, China
2.
State (Beijing) Key Laboratory of Automatic Control Technology of Mining and Metallurgical Processes, Beijing 100070, China
3.
State Key Laboratory of Clean Utilization of Complex Nonferrous Metal Resources, jointly built by the Ministry and the Province, Kunming 650093, Yunnan, China

More Information

Corresponding author: XIAO Qingfei, 13515877@qq.com

Received Date: 25 August 2022

Publish Date: 15 February 2023

Abstract

Abstract

Both vertical mills and ball mills are large grinding equipment in industry, which are widely used in mineral processing, metallurgy, chemical engineering, coal, and other fields. The vertical mill and ball mill were used for grinding tests to compare the grinding effect on certain lead-zinc ore, meanwhile sieve analysis, monomer dissociation analysis and froth flotation tests on above products were also conducted. The results of sieve analysis and monomer dissociation analysis showed that the content of coarse fraction in the product after vertical mill grinding decreased by 0.6 percentage compared with the test results of ball mill. In addition, the liberation degree of galena and sphalerite increased by 2.28 and 1.60 percentage respectively. The froth flotation tests demonstrated that compared with the ball mill-flotation test results, the grade and cumulative recovery of lead in the lead concentrate increased by 0.65 and 0.61 respectively, and the grade and cumulative recovery of zinc in the zinc concentrate increased by 0.6 and 0.6 respectively. The lead and zinc content in the sulfur concentrate decreased by 0.02 and 0.06 percentage. In summary, the grinding effect of the vertical mill for this lead-zinc ore is better than that of the ball mill.
- vertical mill /
- ball mill /
- grinding /
- single liberation degree /
- lead-zinc ore /
- flotation

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References

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