Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
MAGNESIA-SPINEL BRICK FOR VACUUM DEGASSING DEVICE, AND VACUUM DEGASSING DEVICE
To provide: a magnesia-spinel brick that has excellent corrosion resistance to slag generated in a vacuum degassing device with high operation frequency for performing oxygen injection and further has excellent thermal impact resistance, magnesia-carbon reaction resistance, and oxidation resistance; and a vacuum degassing device using the same at a lower tank wall.SOLUTION: A magnesia-spinel brick comprises: 1.0 mass% or more and 69.7 mass% or less of spinel; 30.1 mass% or more and 96.0 mass% or less of magnesia; 0.1 mass% or more and 2.0% or less of aluminum and/or an aluminum alloy; and 0.1 mass% or more and 2.0 mass% or less of pitch and/or carbon black. The magnesia-spinel brick is subjected to lining to the lower tank wall side of a vacuum degassing device performing an operation satisfying the following (2): 0.04≤(the average slag index in the tank[-])≤0.30 (2).SELECTED DRAWING: Figure 2
【課題】酸素吹込みを実施する操業頻度が高い真空脱ガス装置内で発生するスラグに対して耐食性に優れ、さらに耐熱衝撃性、耐マグネシア－カーボン反応性、耐酸化性に優れるマグネシア－スピネル煉瓦及びこれを下部槽壁に使用した真空脱ガス装置を提供する。【解決手段】スピネルを１．０質量％以上６９．７質量％以下、マグネシアを３０．１質量％以上９６．０％質量以下、アルミニウム及び／又はアルミニウム合金を０．１％質量％以上２．０質量％以下、並びにピッチ及び／又はカーボンブラックを０．１質量％以上２．０質量％以下含有するマグネシア－スピネル煉瓦を、下記（２）を満たす操業を行う真空脱ガス装置の下部槽側壁にライニングする。０．０４≦平均槽内スラグインデックス［－］≦０．３０ （２）【選択図】図２
MAGNESIA-SPINEL BRICK FOR VACUUM DEGASSING DEVICE, AND VACUUM DEGASSING DEVICE
To provide: a magnesia-spinel brick that has excellent corrosion resistance to slag generated in a vacuum degassing device with high operation frequency for performing oxygen injection and further has excellent thermal impact resistance, magnesia-carbon reaction resistance, and oxidation resistance; and a vacuum degassing device using the same at a lower tank wall.SOLUTION: A magnesia-spinel brick comprises: 1.0 mass% or more and 69.7 mass% or less of spinel; 30.1 mass% or more and 96.0 mass% or less of magnesia; 0.1 mass% or more and 2.0% or less of aluminum and/or an aluminum alloy; and 0.1 mass% or more and 2.0 mass% or less of pitch and/or carbon black. The magnesia-spinel brick is subjected to lining to the lower tank wall side of a vacuum degassing device performing an operation satisfying the following (2): 0.04≤(the average slag index in the tank[-])≤0.30 (2).SELECTED DRAWING: Figure 2
【課題】酸素吹込みを実施する操業頻度が高い真空脱ガス装置内で発生するスラグに対して耐食性に優れ、さらに耐熱衝撃性、耐マグネシア－カーボン反応性、耐酸化性に優れるマグネシア－スピネル煉瓦及びこれを下部槽壁に使用した真空脱ガス装置を提供する。【解決手段】スピネルを１．０質量％以上６９．７質量％以下、マグネシアを３０．１質量％以上９６．０％質量以下、アルミニウム及び／又はアルミニウム合金を０．１％質量％以上２．０質量％以下、並びにピッチ及び／又はカーボンブラックを０．１質量％以上２．０質量％以下含有するマグネシア－スピネル煉瓦を、下記（２）を満たす操業を行う真空脱ガス装置の下部槽側壁にライニングする。０．０４≦平均槽内スラグインデックス［－］≦０．３０ （２）【選択図】図２
MAGNESIA-SPINEL BRICK FOR VACUUM DEGASSING DEVICE, AND VACUUM DEGASSING DEVICE
真空脱ガス装置用マグネシア－スピネル煉瓦及び真空脱ガス装置
YAMAUCHI JUN (Autor:in) / HARADA JUNJI (Autor:in) / HASHIMOTO KAZUMI (Autor:in) / TSUTSUI YUJI (Autor:in)
17.10.2022
Patent
Elektronische Ressource
Japanisch
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
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