The paper detailedly introduced optimal design principle of the most important parts of mineral separation automation, namely crashing automation and grinding and classification automation. It indicated that with improvement of requirement for production cost and product quality, optimal design of automatic control system of whole flow of mineral separation plant is imperative.%详细介绍了选矿自动化最重要组成部分即破碎自动化和磨矿分级自动化的优化设计原理,指出随着选矿厂对生产成本、产品质量要求的提高,选矿厂全流程自动控制系统的最优设计势在必行.
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