It is shown experimentally and computationally that the elongation of the insulation liner in the air passage to the tuyere nose reduces substantially the heat losses with cooling water. To improve its efficiency, it is reasonable to make the liner thickness uniformly decrease from the flange to the nose and to apply slurry coating to the inner surface of the liner. Improving the liner design allowed reducing the heat losses by 26.2% compared with commercial liner and increasing its life by a factor of 1.9 compared with the elongated liner with constant thickness in the inner shell and variable thickness in the nose.

中文翻译：

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提高高炉风口空气通道隔热衬里的运行效率

实验和计算表明，通向风口鼻部的空气通道中绝缘衬里的伸长显着减少了冷却水的热损失。为提高其效率，合理的做法是使内胆厚度从法兰到鼻端均匀减小，并在内胆内表面涂上浆液涂层。与商业内衬相比，改进内衬​​设计可以减少 26.2% 的热损失，与内壳厚度恒定而鼻部厚度可变的细长内衬相比，其寿命增加了 1.9 倍。