前言四号高炉有效容积2516米~3,是目前我国容积最大的高炉。该高炉基建时,决定采用薄层碳砖炉底结构,炉底厚度仅3400毫米(包括底层碳捣400毫米)。为了测定碳砖炉底的侵蚀速度,比较碳砖和高铝砖的寿命,并于炉底厚度残存1250毫米时发出警报,以便组织大修。为此,决定在炉底安装 Preface No. 4 blast furnace effective volume of 2516 meters ~ 3, is currently the largest volume of blast furnace in our country. The blast furnace infrastructure, decided to adopt a thin carbon brick bottom structure, the bottom thickness of only 3400 mm (including the underlying carbon pound 400 mm). In order to determine the erosion rate of the bottom of the carbon brick, the life of the carbon brick and the high alumina brick was compared and an alarm was given when the remaining thickness of the hearth left at 1250 mm, so that the tissue was overhauled. To this end, decided to install at the bottom of the furnace