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本文评述现代选矿厂所采用重选设备的类型和应用范围。在重选厂的设计、装备和生产实践等方面,近年来总的趋势是增加生产能力、改进选矿工艺、减少投资、降低生产成本,以及处理低品位矿石和复杂矿石。在这些方面,本文提供了一系列的例证。重选方法对于很多矿石的处理是有效的和经济的。对于任一特定的矿物,重选方法的可行性,无论是单一重选或是与其他方法结合,必须取决于矿物的物质组成和矿物的试样特性,以及仔细的综合性的试验,环境和地理位置的因素也必须充分考虑,还要估算投资和生产成本,规测选矿效果和最终产品的分析,以及产品的销售市场和价格。在进行这些研究时,必须将重选工艺与其他选矿工艺或重选和其他方法结合的工艺进行严格的无偏见的比较和鉴别。这样才能保证所采用的技术方案是最经济的和最完好的。本文提出了对高效率工艺系统的设计和操作的主要要求,并进行了简要的讨论。给出了用于处理复杂矿石和难选锡矿石的典型原则流程,并给出了选矿效果以说明其优劣两方面的重要特性,同时提出了有可能提高其效能的改进建议。进行全面的抽样及检验,有可能发现,在许多方面,都存在着选矿工艺、综合经济和潜在效益改进的可能性。
This article reviews the types and applications of re-selection equipment used in modern beneficiation plants. In terms of the design, equipment and production practices of the re-election plant, the general trend in recent years has been to increase production capacity, improve the beneficiation process, reduce investment, reduce production costs and deal with low-grade ores and complex ores. In these areas, this article provides a series of examples. Reselection methods are effective and economical for the processing of many ores. For any particular mineral, the feasibility of a re-selection method, either by single-selection or in combination with other methods, must depend on the mineral composition of the material and on the characteristics of the mineral specimen, as well as careful and comprehensive testing, the environment and Geographical location factors must also be taken into account, as well as investment and production costs, gauging the beneficiation results and final product analysis, and the product sales market and prices. In carrying out these studies, there must be a strict, unbiased comparison and identification of the re-selection process with other beneficiation or re-selection and other processes. In order to ensure that the technical solutions used are the most economical and the best. This paper presents the main requirements for the design and operation of a high-efficiency process system and a brief discussion. The typical principle flow for handling complex ores and refractory tin ores is given, and the beneficiation results are given to illustrate the important characteristics of both advantages and disadvantages. At the same time, some suggestions for improvement are suggested. Conducting a comprehensive sample and test, it is possible to find that in many ways, there is a possibility that the beneficiation process, the comprehensive economy and the potential benefits will be improved.