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1 前言涟钢5#高炉经无料钟改造后,新建了一座热风炉,加上原有的3座热风炉,共有4座砖式热风炉给高炉提供热风。在系统改造前的手动烧炉过程中,助燃风机风量开到最大,然后手动调节煤气量来控制拱顶温度和废气温度。这种调节过程十分粗糙且效果不理想,使送风温度偏低;同时,助燃风机处于全速运行状态,煤气也不能合理、充分燃烧,造成能源浪费严重。热风炉的燃烧控制是一个复杂的过程,我国大多数热风炉系统运行的工艺条件,使一般
1 Introduction Lianyuan Iron and Steel 5 # blast furnace no clock after the transformation, the new hot stove, with the original three hot stove, a total of four brick hot blast furnace to provide hot air. In the process of manual conversion before the system reforming, the air volume of the combustion air blower is turned to the maximum, and then the amount of gas is manually adjusted to control the temperature of the vault and the temperature of the exhaust gas. This adjustment process is very rough and the effect is not satisfactory, so that the supply air temperature is low; the same time, the combustion fan is running at full speed, the gas can not be reasonable and fully burned, resulting in serious energy waste. Burning stove control is a complex process, most of our stove system operating conditions, so that the general