Cement Plant Mechanical And Electrical Equipment Distributed Control System (dcs) Study

This is a research paper for application, the Rotary kiln is the key object of research, aiming at the dynamic relation between decomposed kiln and feeding-coal, a research method is discussed based on Fuzzy-PID strategy. At the same time, a DCS control system is also developed.In this paper, a 2000t/d cement product line in cement factory is the concrete research object. An intellectual control solution is put forward after analyzing the current status in cement factory with low quality and high expense of products. The development status of cement industry is narrated, and the research analyzed a cement process and its characteristics of related machine equipments, it also studied the DCS network framework , system's physical constitution and hardware. Further more, a configure system based on PCAuto is designed. While the control strategy was studied, it firstly studied the simple PID-Control system and its parameter characteristics, and then researched the intellectual fuzzy-control strategy traits specially, and labored the framework and its theory, After using the MATLAB7.1 software to simulate the Fuzzy-PID strategy and contrasting two different curves, it concluded that Fuzzy-PID Control system completely satisfied the demand of temperature control of cement kiln theoretically. Via the test of integration research through DCS and PLC, the control methods of industry spot equipments is simulated, the advantage of DCS control system such as, real-time, stability, operation simple, and vivid interface are important for process industry. In the end, on the foundation of this DCS design, it can provide certain reference value for the actual design.