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MONOLITHIC REFRACTORY FOR USE IN EXTENDING WORK OF BLAST FURNACE TROUGH AND ITS CONSTRUCTION METHOD
PROBLEM TO BE SOLVED: To provide an integrated material (a monolithic refractory for extending using both a slug portion and a metal portion of the lining of a blast furnace trough) having excellent adhesion to base materials (construction materials which have been previously applied to the slug portion and the metal portion of the lining of the blast furnace trough); and its construction method.SOLUTION: A monolithic refractory is composed of silicon carbide of 15 mass% or more to 30 mass% or less, boron carbide of 0.1 mass% or more to 3 mass% or less, carbon black of 0.5 mass% or more to 3 mass% or less as the raw materials. In these components, as to the silicon carbide, the content of fine powder having a particle size of 30 μm or less is set to be from 1 mass% or more to 7.5 mass% or less, based on 100 mass% of the components; and the mass ratio of boron carbide/(the total of silicon carbide as the fine powder and carbon black) is set to be from 0.05 or more to 2 or less. The monolithic refractory prepared by adding water to these components is applied in an extending manner to construction materials which have been previously applied to the slug portion and the metal portion of the lining of the blast furnace trough.SELECTED DRAWING: None
【課題】母材（高炉樋の内張りのスラグ部及びメタル部に予め施工された施工材）に対して優れた接着性を発揮する、一体材（高炉樋の内張りのスラグ部とメタル部とを兼用した継ぎ足し施工に使用する不定形耐火物）、及びその施工方法を提供する。【解決手段】炭化珪素原料を１５質量％以上３０質量％以下、炭化硼素原料を０．１質量％以上３質量％以下、カーボンブラックを０．５質量％以上３質量％以下含有する不定形耐火物の原料配合物において、前記炭化珪素原料のうち粒径３０μｍ以下の微粉の含有量を、原料配合物１００質量％に占める割合で１質量％以上７．５質量％以下とし、かつ、炭化硼素原料／（微粉の炭化珪素原料とカーボンブラックの合量）の質量比を０．０５以上２以下とする。この原料配合物に水を添加した不定形耐火物を、高炉樋の内張りのスラグ部とメタル部に予め施工された施工材に対して継ぎ足し施工する。【選択図】なし
MONOLITHIC REFRACTORY FOR USE IN EXTENDING WORK OF BLAST FURNACE TROUGH AND ITS CONSTRUCTION METHOD
PROBLEM TO BE SOLVED: To provide an integrated material (a monolithic refractory for extending using both a slug portion and a metal portion of the lining of a blast furnace trough) having excellent adhesion to base materials (construction materials which have been previously applied to the slug portion and the metal portion of the lining of the blast furnace trough); and its construction method.SOLUTION: A monolithic refractory is composed of silicon carbide of 15 mass% or more to 30 mass% or less, boron carbide of 0.1 mass% or more to 3 mass% or less, carbon black of 0.5 mass% or more to 3 mass% or less as the raw materials. In these components, as to the silicon carbide, the content of fine powder having a particle size of 30 μm or less is set to be from 1 mass% or more to 7.5 mass% or less, based on 100 mass% of the components; and the mass ratio of boron carbide/(the total of silicon carbide as the fine powder and carbon black) is set to be from 0.05 or more to 2 or less. The monolithic refractory prepared by adding water to these components is applied in an extending manner to construction materials which have been previously applied to the slug portion and the metal portion of the lining of the blast furnace trough.SELECTED DRAWING: None
【課題】母材（高炉樋の内張りのスラグ部及びメタル部に予め施工された施工材）に対して優れた接着性を発揮する、一体材（高炉樋の内張りのスラグ部とメタル部とを兼用した継ぎ足し施工に使用する不定形耐火物）、及びその施工方法を提供する。【解決手段】炭化珪素原料を１５質量％以上３０質量％以下、炭化硼素原料を０．１質量％以上３質量％以下、カーボンブラックを０．５質量％以上３質量％以下含有する不定形耐火物の原料配合物において、前記炭化珪素原料のうち粒径３０μｍ以下の微粉の含有量を、原料配合物１００質量％に占める割合で１質量％以上７．５質量％以下とし、かつ、炭化硼素原料／（微粉の炭化珪素原料とカーボンブラックの合量）の質量比を０．０５以上２以下とする。この原料配合物に水を添加した不定形耐火物を、高炉樋の内張りのスラグ部とメタル部に予め施工された施工材に対して継ぎ足し施工する。【選択図】なし
MONOLITHIC REFRACTORY FOR USE IN EXTENDING WORK OF BLAST FURNACE TROUGH AND ITS CONSTRUCTION METHOD
高炉樋の継ぎ足し施工用不定形耐火物及びその施工方法
TAKAHASHI NOBUYUKI (author)
2018-04-05
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