【摘要】 在分析水泥粉磨系统运行特性的基础上,以水泥球磨机的最佳负荷状态为控制目标,通过在线自寻优算法确定水泥磨的最佳料位,并以分段控制的思想为指导,采用Fuzzy 采样PI算法调整水泥磨的入料量,控制磨机长期稳定在最佳运行状态。在控制系统的硬件和软件实现上,充分利用水泥厂现有DCS的可扩展性,降低了系统的成本。采用磨音传感变送器测量水泥磨机的实际存料量,克服了料位测量的难题。现场运行表明,该控制系统在提高水泥产量、节能降耗及确保水泥质量等方面均取得了满意的效果。更多还原

【Abstract】 The operation characteristics of cement ball mill system were analyzed, and research on control of optimal cement ball mill load was conducted in the method of ball mill load measurement through its noise, ball mill load online optimization, FuzzySample PI control algorithm and development of humanmachine interface. To minimize costs, expansibility of available DCS was fully utilized in the hardware and software implementation of cement ball mill load control system. A complete load control system of cement ball mill was developed and field operation demonstrated its satisfactory performance in increasing cement production, reducing energy cost and ensuring cement quality.更多还原