A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
BRICK FOR BLAST FURNACE HEARTHS AND BLAST FURNACE HEARTH USING SAME, AND METHOD FOR PRODUCING BRICK FOR BLAST FURNACE HEARTHS
Provided is a blast furnace hearth brick which is excellent in terms of hydration resistance and improved in terms of molten pig iron resistance and slag resistance. Specifically, according to one aspect of the present invention, there is provided a blast furnace hearth brick which contains: corundum and aluminum oxynitride, respectively, in an amount of 47 to 92 mass% and in an amount of 7 to 50mass%, and in a total amount of 84 mass% or more; a carbonaceous raw material in an amount of 10 mass% or less (excluding 0); aluminum nitride in an amount of 3 mass% or less (including 0); and AlN polytypoid sialon, β'-sialon and silicon nitride in a total amount of 3 mass% or less (including 0), wherein the aluminum oxynitride is contained in a matrix portion of the blast furnace hearth brick, in an amount of 7 mass% or more.
BRICK FOR BLAST FURNACE HEARTHS AND BLAST FURNACE HEARTH USING SAME, AND METHOD FOR PRODUCING BRICK FOR BLAST FURNACE HEARTHS
Provided is a blast furnace hearth brick which is excellent in terms of hydration resistance and improved in terms of molten pig iron resistance and slag resistance. Specifically, according to one aspect of the present invention, there is provided a blast furnace hearth brick which contains: corundum and aluminum oxynitride, respectively, in an amount of 47 to 92 mass% and in an amount of 7 to 50mass%, and in a total amount of 84 mass% or more; a carbonaceous raw material in an amount of 10 mass% or less (excluding 0); aluminum nitride in an amount of 3 mass% or less (including 0); and AlN polytypoid sialon, β'-sialon and silicon nitride in a total amount of 3 mass% or less (including 0), wherein the aluminum oxynitride is contained in a matrix portion of the blast furnace hearth brick, in an amount of 7 mass% or more.
BRICK FOR BLAST FURNACE HEARTHS AND BLAST FURNACE HEARTH USING SAME, AND METHOD FOR PRODUCING BRICK FOR BLAST FURNACE HEARTHS
ZIEGELSTEIN FÜR HOCHOFEN UND HOCHOFEN DAMIT SOWIE VERFAHREN ZUR HERSTELLUNG EINES ZIEGELSTEINS FÜR HOCHOFEN
BRIQUE POUR SOLES DE HAUT-FOURNEAU ET FOYER DE HAUT-FOURNEAU L'UTILISANT, ET PROCÉDÉ DE PRODUCTION DE BRIQUES POUR SOLES DE HAUT-FOURNEAU
MISHIMA MASAAKI (author)
2020-08-19
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
/
C21B
Gewinnung von Eisen oder Stahl
,
MANUFACTURE OF IRON OR STEEL
/
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
| European Patent Office | 2018
| European Patent Office | 2018
CEMENT MORTAR OF REFRACTORY BRICK FOR BLAST FURNACE TUYERE AND BLAST FURNACE TUYERE STRUCTURE
| European Patent Office | 2018