蜂窝体蓄热室回收转炉煤气余热可行性研究

从转炉煤气点火源能量出发，研究蜂窝体蓄热室回收转炉煤气中、低温段余热的安全性.建立蜂窝体蓄热室通道物理模型，根据JKR碰撞理论和摩擦学理论分别计算蜂窝体蓄热室内多颗粒相潜在点火源能量.通过最小点火能测定实验台测出常温下3种转炉煤气的最小点火能，修正最小点火能理论计算公式，修正系数为0.909;计算得到3种转炉煤气在着火点(973K)时的最小点火能分别为7.36×10^-7，6.26×10^-7，6.01×10^-7J.与潜在点火源能量对比，结果表明:孔径小于6mm的蜂窝体蓄热室回收转炉煤气中、低温段余热是安全可行的.

Feasibility Study on Heat Recovery of Converter Gas by Honeycomb Heat Regenerator

Based on the ignition energy of the converter gas， the safety of waste heat recovery from converter gas at middle and low temperature in the honeycomb regenerator is analyzed. A physical model of the channel in the honeycomb regenerator is established. Potential total energy of multi-particle phase in the honeycomb regenerator is calculated by using JKR collision theory and the theory of tribology. Based on the minimum ignition energy(MIE) of converter gas through the MIE experiment platform at room temperature， the experimental correction calculation formula of MIE is revised and the modified coefficient is 0.909.The MIE in three kinds of converter gas at the ignition temperature of 973K is 7.36×10^-7，6.26×10^-7 and 6.01×10^-7J， respectively. Compared with the potential ignition energy， the results show that it is safe and feasible to recover the waste heat from the converter gas at medium-low temperature in the honeycomb regenerator when the bore diameter is smaller than 6mm.