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李家湾铜矿是以铜、金为主的多金属矽卡岩热液矿床。选厂于1989年建成投产,日处理矿石量为500t。现场生产工艺流程为原矿磨矿细度55～60％-0.074mm,一粗一扫二精流程。1991～1992年5月平均生产指标为原矿品位:铜1.084％、金0.707g/t:银11.34g/t,铜精矿品位24.95％,铜回收率93.13％,金回收率76.76％,银回收率84.03％。我院于1992年6月在该矿进行了工业试验,采用现场生产流程。磨矿细度提高到65～70％-0.074mm,采用丁黄药和丁基铵黑药混合捕收剂、多段加药等项技术措施,当原矿品位为铜1.128％、金0.728g/t、银11.89g/t时,获得铜精矿品位25.975％、铜回收率95.82％,金回收率81.91％,银回收率
Lijiawan Copper Mine is a copper-gold-based multi-metal skarn hydrothermal deposit. Select plant was completed and put into operation in 1989, the daily processing of ore volume 500t. On-site production process for the ore grinding fineness of 55 ~ 60% -0.074mm, a rough sweep of two refined process. From 1991 to May 1992, the average production index was 1.084% for copper, 0.707g / t for gold, 11.34g / t for silver, 24.95% for copper concentrates, 93.13% for copper and 76.76% for gold, silver recovery Rate 84.03%. Our hospital in June 1992 in the mine conducted an industrial test, the use of on-site production processes. Grinding fineness increased to 65 ~ 70% -0.074mm, using butyl and ammonium mixed drug catcher, multi-section dosing and other technical measures, when the ore grade copper 1.128%, gold 0.728g / t , Silver 11.89g / t, the grade of copper concentrate was 25.975%, copper recovery rate was 95.82%, gold recovery rate was 81.91%, silver recovery rate