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铜矿传感预选技术探索试验研究
郑银珠
- 作者单位：
- （大冶有色金属集团控股有限公司）
基金项目：
- 基金项目为空
详细信息：
- 作者简介：
- 郑银珠（1983—），男，工程师，硕士，从事矿山选矿工艺技术管理及研究工作；E⁃mail：87558519@qq. com
- 通讯作者：
- PDF下载
Exploratory experimental study on sensor‑based preconcentration technology for copper ores
- English Author：
Zheng Yinzhu
- Unit：
- （Daye Nonferrous Metals Group Holdings Co., Ltd.）
- 摘要
- 在线预览
- 参考文献
摘要:
随着入选原矿品位逐渐下降，大冶有色下属铜矿山都面临着资源、环境和效益相互协调发展的问题。为了提高低品位铜矿的利用率及入磨品位，降低磨机能耗，引入了预选抛尾技术及装备用于矿物分选。研究采用STEINERT KSS组合式拣选机，利用双能量X射线透射（DE-XRT）和3D激光组合传感技术对大冶有色下属铜矿山铜矿石进行预抛废探索试验。试验结果表明，组合式拣选机对丰山铜矿矿石具有较好的预抛选效果，矿石在抛废率为 12 %的条件下，精矿产品铜回收率可达到98 %，铜品位由0.669 %提升至0.746 %，品位提升幅度为11.51 %，分选指标良好。
关键词:
光电选矿；预选抛废；铜矿；X射线；传感拣选技术；低品位
Abstract:
With the gradual decline in the head grade of run⁃of⁃mine ore, copper mines under Daye NonferrousMetals Group are facing the challenge of coordinating resource, environmental, and economic benefits. To improve theutilization of low⁃grade copper ores, increase the feed grade to the grinding circuit, and reduce mill energy consumption, itis necessary to introduce preconcentration technology for waste rejection and equipment for ore sorting. In this study, aSTEINERT KSS combined sorting machine, integrating dual⁃energy X⁃ray transmission (DE⁃XRT) and 3D laser sensortechnologies, was used to carry out exploratory preconcentration tests for waste rejection on copper ores from the company’smines. The test results show that the combined sorting machine achieves good preconcentration performance for oresfrom the Fengshan Copper Mine. Under a waste rejection rate of 12%, the copper recovery in the concentrate reached 98%,the copper grade of the concentrate increased from 0.669 % to 0.746 %, representing an 11.51 % increase in grade,and the separation indexes were satisfactory.
Keywords:
optoelectronic ore sorting; preconcentration for waste rejection; copper ore; X ray; sensor⁃based sortingtechnology; low grade
