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0 概述矿山选厂的过程控制和自动化的主要目的在于保持合适的选矿作业条件,稳定生产过程并力求实现生产过程的最佳化,从而提高各项技术经济指标。主要表现在以下几个方面:(1)提高金属的回收率。实现选矿的自动化,能及时了解选矿过程中的变化因素并采取相应措施,从而始终保持合适的作业条件和较高的回收率。一般选厂采用载流成分分析和自动控制后,可使主要金属的回收率提高1%～2%。(2)保持和改进精矿的质量。通过选矿自动化系统,可以根据冶炼工艺的需要,在选矿过程中将精矿内的主要金属品位或其他指标(如水分)保持在某
0 General The main purpose of process control and automation of the mills is to maintain proper beneficiation conditions, stabilize the production process and strive to optimize the production process so as to enhance various technical and economic indicators. Mainly in the following areas: (1) increase the recovery rate of metals. To achieve the automation of beneficiation, we can keep abreast of the changing factors in the beneficiation process and take appropriate measures so as to maintain appropriate operating conditions and high recovery rates. The general election plant using current composition analysis and automatic control, the main metal recovery rate can be increased by 1% to 2%. (2) maintain and improve the quality of concentrate. Through the dressing automation system, according to the needs of the smelting process, during the beneficiation process, the main metal grade or other indicators (such as moisture) in the concentrate are kept at a certain