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STEAM-AGING METHOD FOR STEEL SLAG
To provide a steam-aging method capable of performing a stable aging treatment without any treatment unevenness even when a height of steel slags stacked in treatment equipment is large to some extent, in a method for performing steam aging by supplying steam from below to the steel slag.SOLUTION: In a method for performing steam aging by supplying steam from below to a slag layer A having steel slags stacked in treatment equipment, a ventilation-resistant layer x which has air permeability for ventilating the steam but the ventilation resistance of which is larger than that of the slag layer A is provided on an upper part of the slag layer A to generate circulation flow of the steam in the slag layer A, thereby performing stable aging treatment without any treatment unevenness. The ventilation-resistant layer x comprises a fine-grain slag layer, a sheet-like or plate-like ventilation member and the like.SELECTED DRAWING: Figure 1
【課題】処理設備内に積み付けられた製鋼スラグに下方から水蒸気を供給して蒸気エージングを行う方法において、スラグ積み付け高さがある程度高くても、処理ムラがない安定的なエージング処理を行うことができる蒸気エージング方法を提供する。【解決手段】処理設備内に製鋼スラグを積み付けてスラグ層Ａとし、このスラグ層Ａ内に下方から水蒸気を供給して蒸気エージングを行う方法において、スラグ層Ａの上部に、水蒸気を通す通気性は有するが、通気抵抗がスラグ層Ａよりも大きい通気抵抗層xを設けることにより、スラグ層Ａ内で水蒸気の循環流を生じさせ、処理ムラがない安定的なエージング処理を行う。通気抵抗層xは細粒スラグ層やシート状又は板状の通気性部材などで構成される。【選択図】図１
STEAM-AGING METHOD FOR STEEL SLAG
To provide a steam-aging method capable of performing a stable aging treatment without any treatment unevenness even when a height of steel slags stacked in treatment equipment is large to some extent, in a method for performing steam aging by supplying steam from below to the steel slag.SOLUTION: In a method for performing steam aging by supplying steam from below to a slag layer A having steel slags stacked in treatment equipment, a ventilation-resistant layer x which has air permeability for ventilating the steam but the ventilation resistance of which is larger than that of the slag layer A is provided on an upper part of the slag layer A to generate circulation flow of the steam in the slag layer A, thereby performing stable aging treatment without any treatment unevenness. The ventilation-resistant layer x comprises a fine-grain slag layer, a sheet-like or plate-like ventilation member and the like.SELECTED DRAWING: Figure 1
【課題】処理設備内に積み付けられた製鋼スラグに下方から水蒸気を供給して蒸気エージングを行う方法において、スラグ積み付け高さがある程度高くても、処理ムラがない安定的なエージング処理を行うことができる蒸気エージング方法を提供する。【解決手段】処理設備内に製鋼スラグを積み付けてスラグ層Ａとし、このスラグ層Ａ内に下方から水蒸気を供給して蒸気エージングを行う方法において、スラグ層Ａの上部に、水蒸気を通す通気性は有するが、通気抵抗がスラグ層Ａよりも大きい通気抵抗層xを設けることにより、スラグ層Ａ内で水蒸気の循環流を生じさせ、処理ムラがない安定的なエージング処理を行う。通気抵抗層xは細粒スラグ層やシート状又は板状の通気性部材などで構成される。【選択図】図１
STEAM-AGING METHOD FOR STEEL SLAG
製鋼スラグの蒸気エージング方法
OZAWA NORIKO (author) / OKADA ATSUSHI (author) / SO NEIGEN (author)
2020-08-06
Patent
Electronic Resource
Japanese
IPC:
C04B
Kalk
,
LIME
/
F27D
Einzelheiten oder Zubehör für Industrieöfen, Schachtöfen, Brennöfen oder Retorten, soweit sie nicht auf eine Ofenart eingeschränkt sind
,
DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
THERMAL INSULATION COVER FOR STEAM AGING OF STEEL SLAG AND STEAM AGING METHOD OF STEEL SLAG
| European Patent Office | 2020