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Development and Industrial Application of Vertical Agitating Mill in Feed Preparation of Zinc Oxygen Pressure Leaching |
Received:February 20, 2017 Revised:February 27, 2017 |
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DOI:doi:10.3969/j.issn.1007-7545.2017.06.012 |
KeyWord:zinc; oxygen pressure leaching; vertical agitating mill; fine grinding; sanding mill |
Author | Institution |
ZHANG GUOWANG |
长沙矿冶研究院有限责任公司 |
ZHANG Wu |
西部矿业股份有限公司锌业分公司 |
LIU Yu |
长沙矿冶研究院有限责任公司 |
HUANG Li-long |
长沙矿冶研究院有限责任公司 |
CHEN Wan-qun |
x |
ZHANG Bing-qing |
西部矿业股份有限公司锌业分公司 |
ZHAO Xiang |
长沙矿冶研究院有限责任公司 |
LIU Jun |
西部矿业股份有限公司锌业分公司 |
KONG Jun-jie |
西部矿业股份有限公司锌业分公司 |
SHI Li |
长沙矿冶研究院有限责任公司 |
LONG Yuan |
长沙矿冶研究院有限责任公司 |
XIAO Xiao |
长沙矿冶研究院有限责任公司 |
LI Wen-ming |
长沙矿冶研究院有限责任公司 |
SANG Yan-wei |
长沙矿冶研究院有限责任公司 |
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Abstract: |
Special requirements on particle size and concentration of mineral products in zinc pressure leaching were analyzed. Traditional ball milling and newly introduced vertical sand milling were analyzed and their deficiencies were pointed out. The advanced and appropriative vertical screw agitating mill technology was developed for zinc oxidizing pressure leaching. Applications and technical advantages of vertical agitating mill in zinc oxygen pressure leaching in Western Mining Corporation with capacity of 100 kt/a were introduced. Particle size of final product of -45 μm is 96%~98% under the conditions including feed particle size of -75 μm of 50%, grinding concentration of 65%~68%. Both investment and operation cost is only 1/3 of imported vertical sand mill based on comparison of technical and economic indexes. |
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