邵东钢铁厂针对原27.5立方米小高炉用粘土耐火砖作内衬使用寿命不长和耐火材料供应困难的情况,在1970年新建30.7立方米小高炉时,采用了低温炭捣內衬的技术。所用的配比是:焦粉91％,沥清粉9％,外加粘结油(即脱水焦油)9～10％。除炉底加配柴油外,炉腰托圈以下均用上述配比捣成。炉腰托圈以上仍为粘土耐火砖砌筑,在炭捣体表面则砌以75毫米的保护砖。铁口采 Shaodong Iron and Steel Plant for the original 27.5 cubic meters of small blast furnace clay lining refractory brick lined with short service life and refractory supply situation, in 1970 the new 30.7 cubic meters of small blast furnace, the use of low-temperature carbon pound lining technology. The ratio used is: 91% coke powder, bitumen powder 9%, plus bonded oil (ie dehydrated tar) 9 ~ 10%. In addition to adding the bottom of the furnace with diesel oil, the following waist ring with the above ratio pounded. Above the lap ring is still clay refractory brick masonry, the carbon pounding body surface is built with 75 mm protective brick. Iron mouth mining