Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

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中国有色金属学报

ZHONGGUO YOUSEJINSHU XUEBAO

第11卷    第5期    总第44期    2001年10月

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文章编号:  1004-0609(2001)05-0890-05
氧化铝生产中的两段磨—水力旋流器
磨矿分级新工艺的开发
汤世泰

(平果铝业公司, 平果  531400)

摘 要:  针对平果铝矿石的特性、矿石的可磨性及溶出性能对磨矿工艺的要求,开发了棒磨开路、球磨与水旋器闭路的两段磨—水力旋流器磨矿分级新技术及大型磨机。该工艺具有明显的优点;设备大型化,充分发挥了棒磨机和球磨机各自的特性;工艺配置合理,解决了难磨铝矿的磨矿技术问题。与传统的一段磨相比,磨矿电耗降低约6.22kW·h/t, 矿石中氧化铝溶出率提高,年创经济效益4*!400多万元,具有广泛的推广应用价值。

 

关键字:   堆积型铝土矿; 可磨性; 溶出性能; 棒磨; 球磨; 水力旋流器

Development of two-stages grinding in
alumina refinery— new process of
water-cyclone grinding and classification
TANG Shi-tai

Pingguo Aluminum Company, Pingguo 531400, P.R.China

Abstract: In view of Pingguo bauxite properties, the requirements of the attrition of bauxite and digesting performance for grinding process, two-stages  grinding—water-cyclone  grinding and classification new process and giant  mill were developed, one is rod mill open-circuit, the  other is ball mill and  water-cycloneclosed-circuit.  With sufficient advantages,  the equipment is giant, making full use of the different characteristics of rod mill and ball mill,solving  the grinding problem of difficult  attrition  bauxite. Compared with the traditional one-stage grinding, the power consumption was decreased about 6.22kWh/t,the digesting yield was increased, economic benefits of 44 million yuan (RMB) were achieved.

 

Key words: accumulating bauxite; attrition; digesting performance; rod mill; ball mill; water-cyclone

ISSN 1004-0609
CN 43-1238/TG
CODEN: ZYJXFK

ISSN 1003-6326
CN 43-1239/TG
CODEN: TNMCEW

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