Abstract:The process of concentration and dehydration plays an important role in mineral and metallurgical industry. The intelligent optimization control of concentration and dehydration process is the key to realize the whole process optimization control. This paper presents an intelligent control system of concentration and dehydration process based on step-by-step optimization. On the basis of ensuring the safe operation of concentration and dehydration process and meeting the production requirements, it optimizes the ore storage of thickener and the ore drawing schedule of thickener, realizes the closed-loop of thickener and filter pressing operation.Furthermore this system makes the thickener and filter pressing coordinate production, improves the underflow concentration of thickener and the production efficiency of concentration and dehydration process, reduces the overflow and the energy consumption. The sytem described in this article was successfully applied in a concentrator to achieve intelligent optimization control of the concentration and dehydration process, reduce costs and increase efficiency for enterprises, and improve economic benefits and core competitiveness.