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TROUGH STRUCTURE COPING WITH THERMAL-EXPANSION OF TROUGH REFRACTORY, AND TROUGH PERIPHERAL STRUCTURE
TROUGH STRUCTURE COPING WITH THERMAL-EXPANSION OF TROUGH REFRACTORY, AND TROUGH PERIPHERAL STRUCTURE
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机译：具有热膨胀系数的多孔结构应对，以及多孔外围结构
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摘要
PROBLEM TO BE SOLVED: To provide the structure of a blast furnace casting floor trough, which can use the conventional concrete-made trough frame without using a high cost and special steel-made trough frame, and is provided with heat-preventive structure, and to provide the trough peripheral structure.;SOLUTION: The trough set on the casting floor for the blast furnace has such trough structure that in the boundary 2 between the trough refractory 4 or a back surface filling material 3 and the inner wall surface of the trough, to be executed in a reinforced-concrete-made recessed trough frame 1, at least one of a grain-filling layer and a buffering material having porosity and shrinkability is set. And the trough peripheral structure is constituted so that in a trough bending part, a steel frame column is arranged at the outside of the trough wall in the outer periphery of the bending part of the reinforced-concrete-made recessed trough frame, and the trough wall and the steel frame column are connected with a horizontal material or a machining damper. Further, he trough peripheral structure is constituted so that between the upper surface of the trough wall of the reinforced-concrete-made recessed trough frame and the casting floor, a trough pit side wall is constituted by fitting Z-type shaped metallic material and parallel hanging a heat-preventive plate having 1.5-2 m width per one piece.;COPYRIGHT: (C)2009,JPO&INPIT
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