Aiming at the problems such as strong artificial dependence,low precision and low pro-duction efficiency of gas flow regulation of hot blast furnace during slag vertical mill production,this pa-per establishes a cascade control system,in which there are two controllers,temperature controller and flow controller.The output value of the temperature controller is set as the target setting value of the flow controller,and the output of the flow controller controls the gas regulating valve,so as to achieve the ac-curate control of the gas flow.Through the establishment of the control system,the fluctuation of the out-let temperature is effectively controlled within the range of±1 ℃,and the consumption of blast furnace gas is reduced by 3 m3/t,which significantly improves the efficiency and stability of slag vertical mill production,effectively replaces the traditional manual operation mode,and is of great significance for promoting the technical progress and efficiency improvement of slag vertical mill production.
关键词
矿渣立磨/热风炉/自动燃烧/串级控制
Key words
lag vertical mill/hot blast stove/automatic combustion/cascade control
维普
万方数据