Design Of The Control System For The Electrolysis Aluminum Material Store Conveyance And Flue Gas Purification

In the electrolytic production process, the largest single equipment, process the most complex, control is the most widely regional materials storage, and flue gas purification system. It is in the electrolytic production of raw materials transportation system, the electrolytic system compatible with the recovery of flue gas purification dust. This paper electrolytic production process, combined with the actual situation, the development and design of the flue gas purification material handling control system to produce electrolytic solution with the technology in the continuous improvement and development, control and more control strategy high needs.In this paper, China's Guizhou branch four aluminum electrolytic aluminum projects for the research background, and is designed to S7-400 Series PLC controller for Siemens WINCC industrial control configuration software for the monitoring operation upper platform, Siemens TP270 touch screen for the site operator station, based on industry to network and the state of PROFIBUS technology Distributed Control System.In this paper, the specific application of theory and two of electrolytic material handling and flue gas purification control system design and implementation of research, analysis and comparison of typical fieldbus control system on the basis of the Siemens company PROFIBUS-DP and industrial Ethernet combination of the design of the system communications network structure, made of aluminum electrolytic material handling and flue gas purification production process monitoring solutions, are discussed in detail in the text of the entire monitoring system network structure and the establishment of process; In addition, the system to Siemens S7-400 Series PLC controller for Siemens WINCC industrial control configuration software platform for the upper control operation, the analysis of the technical requirements and user requirements, the design and development of electrolytic material handling and flue gas purification Computer Monitoring System for the production process and logic control procedures, the text focuses on S7-400 Series PLC selection and configuration of modules, logic control procedures for development, based on SIMATIC WINCC production process control system development, WINCC server redundancy design, Monitoring the development of the interface intuitive and easy to operate, thus greatly enhancing the system monitoring capability at the same time, for material handling and characteristics of flue gas purification technology, and introduced the PID regulator VVVF large fan in the application.The projects undertaken by the research and development system, in production, has been put into use, and practice has proven to be easy to operate, operation stability, and maintain good control of the merits.