通过理论计算,得出了各种热风炉系统用低热值高炉煤气获得高风温的可能性。以2000m~3高炉的热风炉为例,热风炉能力和经济效果的计算结果表明,我国独创的自身预热热风炉系统可以完全不用高热值气体燃料达到高风温,与其他热风炉系统相比,还可获得较好的经济效果。 Through theoretical calculation, it is concluded that the low calorific value blast furnace gas used in various hot-blast stove systems has the possibility of obtaining high air temperature. Taking the hot blast stove of 2000m ~ 3 blast furnace as an example, the calculation results of hot blast stove ’s ability and economic effect show that the self - preheating hot blast stove system of our country can completely eliminate the need of high calorific value gaseous fuel to achieve high air temperature. Compared with other hot blast stove systems , But also get better economic results.