煤泥水处理是选煤厂生产过程中的关键环节。为了解决煤泥水处理过程中存在的药剂浓度不稳定、人工经验依赖性强、药剂调整滞后、操作效率低等问题，王坡选煤厂在基于煤泥水处理现状分析的基础上，进行了加药系统智能化改造，通过对助滤剂和絮凝剂制备及加药装置进行设计，构建参数检测系统，完善控制方案，实现了煤泥水系统的高效运行。生产实践表明，智能加药系统持续稳定运行，减员3人，实现了无人值守；浓缩效率提高了2.19个百分点，底流固体产率提高了0.76个百分点，压滤上料时间缩短了500 s/班；絮凝剂用量降低了8.56%，助滤剂用量降低了10.25%；减少了生产事故的发生。智能加药系统的应用，每年可为王坡选煤厂节约人工成本、电费和材料成本约87万元，经济效益显著。

Coal slurry water treatment is a key link in coal preparation process. In order to address the problems of the manually operated agent dosing system applied by Wangpo Coal Preparation Plant, such as instability in concentration of agent prepared, strong reliance on experience of operators, delay in making adjustment, and low operating efficiency, the existing dosing system is turned into an intelligent one through technical transformation, based on result of analysis of the current slurry water treatment conditions. Through design of the filter aid and flocculant dosing units, application of various measuring instruments to monitor key operating parameters, and improvement of control scheme, the slurry water treatment system has now been made possible to maintain a high-efficiency operation. Practice shows that the dosing system can work stably in an unattended manner, making it possible to dispense with three operations; the thickener has seen increases in thickening efficiency and underflow solids yield by 2.19 percentage points and by 0.76 percentage points, respectively; the time for feeding the filter press is cut by 500 s per shift; the consumptions of flocculant and filter aid are decreased by 8.56% and 10.25%, respectively; and the rate of accidents in operation has been reduced. Application of the intelligent system can save the labor, electrical and material costs by 0.87 million yuan per year, creating a noticeably favorable economic benefit for the plant.