Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
REFINING CONTAINER FOR MAKING IRON
PROBLEM TO BE SOLVED: To provide a refining container for making iron with a carbon-containing brick refractory processed, having enhanced spalling resistance without losing fibrous materials even during decarbonization or dephosphorization refining of molten iron.SOLUTION: There is provided a refining container 20 for making iron holding molten iron inside and having a gas blowing tuyere for blowing gas to the molten iron form a furnace bottom part, constituted by a work refractory 26, a perpetual refractory 24 and iron coating 22 in this order from inside, wherein a carbon-containing brick refractory formed by curing a mixture raw material containing following (1) to (3) is used for the work refractory of a part having the gas blowing tuyere 28. (1) at least one compound of AlOand MgO having a particle size range of particle diameters of 3 mm or more of 5 to 40 mass%, 1 mm or more and less than 3 mm of 10 to 45 mass%, 0.15 mm or more and less than 1 mm of 15 to 30 mass% and less than 0.15 mm of 5 to 45 mass%. (2) a graphite raw material. (3) at least two powders of MgO, AlOand SiOhaving average particle diameter of 1 μm or less.SELECTED DRAWING: Figure 7
【課題】溶鉄の脱炭や脱りん精錬中においても繊維状物質が消失しない耐スポーリング性を向上させたカーボン含有れんが耐火物を施工した製鉄用精錬容器の提供。【解決手段】内部に溶鉄を保持し、前記溶鉄に炉底部からガスを吹き込むためのガス吹き込み羽口を有する製鉄用精錬容器であって、内側からワーク耐火物２６、永久耐火物２４、鉄皮２２の順に構成され、前記ガス吹き込み羽口２８を有する部位のワーク耐火物に、（１）〜（３）を含む混合原料が硬化されたカーボン含有れんが耐火物を用いる製鉄用精錬容器２０。（１）粒径で３ｍｍ以上が５〜４０質量％、１〜３ｍｍ未満が１０〜４５質量％、０．１５〜１ｍｍ未満が１５〜３０質量％、０．１５ｍｍ未満が５〜４５質量％の粒度範囲からなるＡｌ２Ｏ３およびＭｇＯの少なくとも１種類の化合物、（２）黒鉛原料、（３）平均粒子径が１μｍ以下であるＭｇＯ、Ａｌ２Ｏ３、ＳｉＯ２のうち少なくとも２種類の粉体【選択図】図７
REFINING CONTAINER FOR MAKING IRON
PROBLEM TO BE SOLVED: To provide a refining container for making iron with a carbon-containing brick refractory processed, having enhanced spalling resistance without losing fibrous materials even during decarbonization or dephosphorization refining of molten iron.SOLUTION: There is provided a refining container 20 for making iron holding molten iron inside and having a gas blowing tuyere for blowing gas to the molten iron form a furnace bottom part, constituted by a work refractory 26, a perpetual refractory 24 and iron coating 22 in this order from inside, wherein a carbon-containing brick refractory formed by curing a mixture raw material containing following (1) to (3) is used for the work refractory of a part having the gas blowing tuyere 28. (1) at least one compound of AlOand MgO having a particle size range of particle diameters of 3 mm or more of 5 to 40 mass%, 1 mm or more and less than 3 mm of 10 to 45 mass%, 0.15 mm or more and less than 1 mm of 15 to 30 mass% and less than 0.15 mm of 5 to 45 mass%. (2) a graphite raw material. (3) at least two powders of MgO, AlOand SiOhaving average particle diameter of 1 μm or less.SELECTED DRAWING: Figure 7
【課題】溶鉄の脱炭や脱りん精錬中においても繊維状物質が消失しない耐スポーリング性を向上させたカーボン含有れんが耐火物を施工した製鉄用精錬容器の提供。【解決手段】内部に溶鉄を保持し、前記溶鉄に炉底部からガスを吹き込むためのガス吹き込み羽口を有する製鉄用精錬容器であって、内側からワーク耐火物２６、永久耐火物２４、鉄皮２２の順に構成され、前記ガス吹き込み羽口２８を有する部位のワーク耐火物に、（１）〜（３）を含む混合原料が硬化されたカーボン含有れんが耐火物を用いる製鉄用精錬容器２０。（１）粒径で３ｍｍ以上が５〜４０質量％、１〜３ｍｍ未満が１０〜４５質量％、０．１５〜１ｍｍ未満が１５〜３０質量％、０．１５ｍｍ未満が５〜４５質量％の粒度範囲からなるＡｌ２Ｏ３およびＭｇＯの少なくとも１種類の化合物、（２）黒鉛原料、（３）平均粒子径が１μｍ以下であるＭｇＯ、Ａｌ２Ｏ３、ＳｉＯ２のうち少なくとも２種類の粉体【選択図】図７
REFINING CONTAINER FOR MAKING IRON
製鉄用精錬容器
HINO YUTA (Autor:in) / MATSUNAGA HISAHIRO (Autor:in)
01.06.2017
Patent
Elektronische Ressource
Japanisch
IPC:
C21C
Weiterverarbeiten von Roheisen, z.B. Feinen, Herstellen von Schweißeisen oder Stahl
,
PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL
/
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
Oxidation refining of iron using plasma-arc melting
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Removal of Iron Impurity from Aluminum by Electroslag Refining
| British Library Online Contents | 2011
The refining of cast iron by the talbot process
Engineering Index Backfile | 1903