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A platform for research: civil engineering, architecture and urbanism
METHOD FOR PRODUCING BLAST FURNACE ANNEALING SLAG, METHOD FOR PRODUCING COARSE AGGREGATE FOR CONCRETE, METHOD FOR PRODUCING ROADBED MATERIAL, AND BLAST FURNACE ANNEALING SLAG
To reduce elution of selenium from slag after annealing by controlling annealing conditions of molten slag.SOLUTION: A method for producing blast furnace annealing slag has a deposition process in which molten blast furnace slag is discharged into a cooling yard 1 to form a slag deposit 2, and a sprinkling process in which water of 50 L or more per ton of slag is sprinkled on a surface of the slag deposit 2 formed in the deposition process.SELECTED DRAWING: Figure 3
【課題】溶融スラグの徐冷条件を制御することにより、徐冷後のスラグからのセレンの溶出を低減することを目的とするものである。【解決手段】溶融状態の高炉スラグを冷却ヤード１へ流出させてスラグ堆積物２を形成させる堆積工程と、堆積工程で形成されたスラグ堆積物２の表面に、スラグ１トンあたり５０Ｌ以上の水を散水する散水工程と、を有する高炉徐冷スラグの製造方法。【選択図】図３
METHOD FOR PRODUCING BLAST FURNACE ANNEALING SLAG, METHOD FOR PRODUCING COARSE AGGREGATE FOR CONCRETE, METHOD FOR PRODUCING ROADBED MATERIAL, AND BLAST FURNACE ANNEALING SLAG
To reduce elution of selenium from slag after annealing by controlling annealing conditions of molten slag.SOLUTION: A method for producing blast furnace annealing slag has a deposition process in which molten blast furnace slag is discharged into a cooling yard 1 to form a slag deposit 2, and a sprinkling process in which water of 50 L or more per ton of slag is sprinkled on a surface of the slag deposit 2 formed in the deposition process.SELECTED DRAWING: Figure 3
【課題】溶融スラグの徐冷条件を制御することにより、徐冷後のスラグからのセレンの溶出を低減することを目的とするものである。【解決手段】溶融状態の高炉スラグを冷却ヤード１へ流出させてスラグ堆積物２を形成させる堆積工程と、堆積工程で形成されたスラグ堆積物２の表面に、スラグ１トンあたり５０Ｌ以上の水を散水する散水工程と、を有する高炉徐冷スラグの製造方法。【選択図】図３
METHOD FOR PRODUCING BLAST FURNACE ANNEALING SLAG, METHOD FOR PRODUCING COARSE AGGREGATE FOR CONCRETE, METHOD FOR PRODUCING ROADBED MATERIAL, AND BLAST FURNACE ANNEALING SLAG
高炉徐冷スラグの製造方法、コンクリート用粗骨材の製造方法、道路用路盤材の製造方法及び高炉徐冷スラグ
MATSUNAGA HISAHIRO (author) / WATANABE KYOJI (author)
2022-11-25
Patent
Electronic Resource
Japanese
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