模糊控制在煤泥水处理系统中的应用

煤泥水的处理属于选煤厂的一个极其关键的过程,最终的处理结果能够影响到煤泥水的回用和洗水闭路循环指标,并且对于选煤厂以及其它环节,如发热量、分选效率指标等影响很大。也是制约经济以及社会效益的关键的因素。模糊控制原理包含的内容比较多,基于其整体性,提出自动添加药剂控制策略,用模糊控制算法代替目前使用的常规控制算法,根据在线设定的模糊规则参数,以进料浓度为输入量,以浓缩池沉积面厚度参数作为反馈量,以变频器频率为输出量,设计模糊控制器。对药剂添加系统进行补偿控制,基于此控制策略对实际数据进行验证采集。结果表明: 所设计的模糊控制系统项目参数选择符合控制要求,进而可以达到控制的标准,控制系统的稳定性也较好,煤泥水处理效果和处理速度得到了保证,进一步提升了经济效益等综合指标。

Application of fuzzy control in coal slime water treatment system

The treatment of slime water is an extremely key process in the coal preparation plant. The final treatment result can affect the reuse of slime water and the closed-circuit circulation index of washing water, and has a great impact on the coal preparation plant and other links, such as calorific value and separation efficiency index. It is also a key factor restricting economic and social benefits. The principle of fuzzy control contains many contents. Based on its integrity, the control strategy of automatic reagent addition is proposed. The fuzzy control algorithm is used to replace the conventional control algorithm. According to the fuzzy rule parameters set online, the fuzzy controller is designed with the feed concentration as the input, the thickness parameter of the sedimentation surface of the concentration tank as the feedback and the frequency of the frequency converter as the output. Compensate and control the reagent addition system, and verify and collect the actual data based on this control strategy. The results show that the project parameter selection of the designed fuzzy control system meets the control requirements, and then can reach the control standard. The stability of the control system is also good, the treatment effect and speed of slime water are guaranteed, and the comprehensive indexes such as economic benefits are further improved.