【作者】 韩伟；

【导师】 彭会清；

【作者基本信息】 武汉理工大学 ， 矿物加工工程， 2007， 硕士

【摘要】 矿产资源属于不可再生资源，而铜资源对我国来说更属短缺资源。我国铜矿资源以贫铜为主，大型铜矿少，矿产资源日趋贫、细、杂，选别作业难度增加，况且随着国民经济的高速发展，对高品质的矿产原料和金属的需求量不断增加，使供需矛盾也日益加大。如何实现复杂矿产资源的综合利用，缓解供需矛盾，保证国民经济的可持续发展，已成为技术创新的重大问题之一。因此，针对我国铜矿资源的特点，加大低品位铜矿资源深度开发，实现矿产资源的综合利用，有利于缓解我国铜工业存在的供需矛盾，具有重大的经济意义和社会意义。本课题选择黄石鑫泰矿业公司铜山口矿区的铜钼多金属共生矿为研究对象，矿石中的金属矿物以黄铜矿、黄铁矿和辉钼矿等硫化矿物为主，原矿性质较为复杂；由于选矿生产中存在严重粗粒欠磨、细粒过磨，供矿性质复杂多变，药剂制度不合理等多种不利因素影响，精矿产品回收率偏低，有价元素得不到充分的利用。本文在对该矿石主要矿物组成和嵌布关系深入研究及原选矿工艺存在问题分析的基础上，以提高选铜回收率和综合回收有益金属为目的，结合矿石性质特点，在实验室中通过对磨矿细度、矿浆pH值、捕收剂、起泡剂用量和用法等环节的浮选试验研究，采用全新的研究方法，优化选矿工艺流程，确定了新的浮选药剂制度和选矿工艺流程，取得了比较理想的铜硫选别指标，为选矿厂进行全流程技术改造提供了详实的理论依据。在理论研究分析的基础上，对铜中矿浮选新工艺进行了工业生产试验，通过选矿工艺的优化、调试，新工艺的选矿指标有较大的提高，取得了良好的经济效益。工业生产实践证明，新工艺突破了阶段磨矿，循序返回的传统浮选工艺模式，在不增加磨机情况下，实现了铜中矿选择性分级再磨再选，形成了磨浮大循环，铜中矿浮选新工艺的改造是成功的，同时也为同类矿山的技术改造提供了一定的借鉴作用。本课题有很好的发展前途和应用前景。更多还原

【Abstract】 Mineral resources are non-renewable resources, and copper resource of our country is limited. Chinese copper resource is main poor copper. Mineral resources are tend to poor、tiny and complex , mineral process becomes more and more difficult, and the requirement for the mineral raw materials with high quality and nonferrous metals is rising continuously, which lead to the contradiction between supply and demand are increasing. Therefore, how to alleviate the contradiction by carrying out the comprehensive utilization of mineral resources to keep national economic sustainable development has been one of major issues with technological innovation. So, aiming at the quality of Chinese copper resource, developing low-grade copper resource intensively and making full use of mineral resource comprehensively, which will help to ease the contradiction between supply and demand and have great economic and social significance.The topic chooses the polymetallic symbiotic mine in Tong Shankou copper mine area, the main metal minerals are chalcopyrite and pyrite and molybdenum, and the quality of raw material are much complicated. There are many factors lead to low-recovery of copper concentration and hard to make full use of valuable elements, such as the rough grain is lack of grinding, the fine grain is excessive of grinding, the ore character is complex and variable, the regime of medicament is unreasonable, etc. The paper bases on main mineral compositions、study on inlay relation and the analysis of former mineral process, on the purpose of increasing copper recovery and recovering valuable metals comprehensively; combining the quality of ore, do flotation experiment on grinding fineness、pulp pH、collector、frother dosage and usage in laboratory, adopting newly-research method, optimizing mineral process flow, then determining new flotation medicament and mineral process flow, finally attaining much ideal copper and sulfur separation’s index, which supply detail theoretical datus for technical innovation in Tong Shankou copper mine.Base on the analysis of the theoretical research, do industrial experiment on copper middle ore flotation with new technology, the indicators of new process technology are improved greatly through optimization、debugging, and achieve good economic results. Industrial production practice prove that the new technology breakthrough in the stage grinding, the traditional order cycle flotation process model, in the case of not increasing ball mill , achieving copper middle selective classification and regrinding, forming a large circle of floating mill, Copper middle ore flotation process transformation is success, also provide certain reference for the technological transformation of similar mine . The experimental research in this paper has great developing future and prospect of application.更多还原