燃料比对蓄热式加热炉热工过程的影响

The Influence of Fuel Ratio on Regenerative Heating Furnace Thermal Process

建立了蓄热式加热炉数学模型,研究炉子结构参数及燃料一定时,沿炉长方向燃料比变化对加热炉热工过程的影响。在加热炉额定生产率下,分析了炉子第一、第二加热段和均热段燃料比变化对炉气、炉壁、钢坯上表面温度和钢坯断面温差等参数的影响,得出该加热炉的最优燃料比;研究了不同生产率下燃料比对加热炉热工过程的的影响,研究表明最优燃料比不随生产率变化而变化。该研究结果为优化蓄热式加热炉热工运行提供了重要的指导作用。

A regenerative heating furnace mathematical model was established to study the effect of fuel ratio changing along the furnace length direction on the furnace thermal process,while the structural parameters of the stove and fuel is constant. Under the rated capacity of reheating furnace,analyzed the impact of the heating fuel ratios in the first and the second heating zone on the gas temperature,furnace wall temperature,billet surface temperature,billet section temperature difference and other parameters,obtained the optimal fuel ratio of the furnace. Studied the effect of fuel ratio under different productivity thermal schedules on the reheating furnace process,the results show that the optimum fuel ratio does not vary with productivity changes. The research results provide an important guiding role to optimize the regenerative heating furnace thermal operation.