| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide refractory lining structure constructed easily, capable of restraining construction manhours, and capable of exhibiting sufficiently reduction of a molten metal temperature going-down level, restraint of shell deformation and the like for a long period, in the refractory lining structure for an iron manufacturing container for holding molten pig iron. <P>SOLUTION: This refractory lining structure for the iron manufacturing container 1 is ladle type iron refractory lining structure for receiving and holding the molten pig iron tapped from a blast furnace, and for conveying the held molten pig iron or for refining the held molten pig iron, the refractory lining structure includes a shell 2, a permanent refractory layer 3 and a work refractory layer 4 in this order from an outer side of the iron manufacturing container, and the work refractory layer is constituted of a molded brick or a monolithic refractory having 12 W/(mK) or less of thermal conductivity coefficient, and is characterized in that an average heat flux discharged to an outside within one hour after dispensing from an upper end part opening of the empty iron manufacturing container after dispensing the molten pig iron received in the blast furnace, is 18 kW/m<SP>2</SP>or less. <P>COPYRIGHT: (C)2011,JPO&INPIT |
