Blast furnace mainly includes process automation control, feeding and ontology, and control of blast furnace control automation, main purpose is the guarantee of blast furnace operation four main problem: correct ingredients and timely loading charging, control, with certain order homogeneous drop; foundry Adjust the burden distribution and maintain the good gas flow and thermal contact, Keep the hot blast has appropriate condition. Bf automation system including instrument and control system and electric control system and the process and management with the computer.
First ingredients must accurate, once appear mistake will seriously affect XiuFeng blast furnace condition, and even discontinued. Still, the equipment should be the interlocking relationship, if control disorders, waste materials, human, the person that will lead to the normal feeding, trolleys can XiuFeng blast furnace, forcing. The blast furnace has the characteristics of process industry, based on the automation function is continuous control, batch control, logistics processing as the main content, to optimize the process as the main target. Blast furnace production as the necessary supporting system for conveying equipment, the high pressure blast blast is to guarantee the stability of the necessary conditions for the blast furnace high stability. If the control disorders caused by light, wind, temperature fluctuations of blast furnace production, affect the person will blast injury and gas explosion vault. But because of blast furnace and furnace production continuity, automation control system design, equipment selection and has high reliability and emergency handling. In the production process of poisonous gas safety endangers life and explosion in automatic control system, and the equipment selection are designed to prevent danger produce measures.
In traditional blast furnace process through many simulation instrument to monitor iron-making process. It includes blast furnace and furnace body temperature, pressure, and flow of numerous data monitoring, comprehensive drum wind air temperature, air pressure, wind and other parameters of the detection and control, and the cloth in furnace process simulation shows plate etc. In order to realize the blast furnace process automation control target, constantly promote computer in blast furnace production technology application. To the 1980s, realized by microcomputer as the core of PLC and DCS control system replace traditional electric furnace and instruments as basis of automation, realize the goal of blast furnace and furnace body parameters, under the roof and weighing, ingredients of coal powder injection cloth, centralized monitoring of process parameters. While many PC monitor screen on display screen, alarm screen, trend, the application of computer can make more intuitively and more accurately reflect the dynamic changes of the blast furnace process.
Keywords: blast furnace, automatic control DCS