Blast furnace body bottom plate press-fitting material and blast furnace bottom construction method

摘要

PPROBLEM TO BE SOLVED: To provide a water based injection refractory under a blast furnace body bottom plate which facilitates a construction, is low in treatment cost and can easily be recycled and used, and to provide a construction method of a blast furnace bottom. PSOLUTION: A high heat conductivity filler refractory containing 20 mass% SiC, 10-30 mass% graphite, 20 mass% AlSB2/SBOSB3/SB, 15 mass% SiOSB2/SBand 95 mass% in total of SiC, graphite, AlSB2/SBOSB3/SBand SiOSB2/SBas a chemical composition before water is added and having 4.5 W/m K heat conductivity at normal temperature is placed up to the height to form a certain gap between the upper surface and an installation level of the blast furnace main body bottom 3 to be in contact with a cooling pipe 7 arranged furnace bottom, the blast furnace main body bottom plate is mounted above the formed high heat conductivity filler layer 5 and after that, the injection refractory 6 for the blast furnace body bottom plate is injected into the gap between the blast furnace main body bottom plate and the high heat conductivity filler layer. PCOPYRIGHT: (C)2008,JPO&INPIT