F - Mech Eng,Light,Heat,Weapons – 27 – D
Patent
F - Mech Eng,Light,Heat,Weapons
27
D
F27D 1/04 (2006.01) E04B 2/08 (2006.01) F27B 13/02 (2006.01) F27D 1/16 (2006.01)
Patent
CA 2449699
The present invention concerns a method for creating a thermally stable base structure which may form part of furnaces and means in connection with such a method. In particular, the present invention concerns base structures which may form part of ring furnaces for calcining of carbon blocks for use in aluminium electrolysis. The base structure rests on a foundation consisting of a number of columns (15, 16, 17, 18, 19, 20) and is created by a first layer B' of refractory bricks being laid on the foundation. These bricks are made with locking elements (25, 26) on their tops, onto which is laid a second layer C' of refractory bricks with equivalent, complementary locking elements underneath them. In this way, the two layers are connected to each other and a structure is achieved which has proved stable in relation to thermal and mechanical loads.
La présente invention concerne un procédé et un dispositif de fabrication d'une structure thermiquement stable pouvant faire partie de fours. Plus particulièrement, cette invention concerne des structures de base destinées à des fours tubulaires utilisés pour calciner des blocs d'anode qui s'utilisent dans l'électrolyse de l'aluminium. La structure de base repose sur un socle constitué d'un certain nombre de colonnes (15, 16, 17, 18, 19, 20) et est constituée par une première couche B' de briques réfractaires reposant sur le socle. Ces comportent des éléments de blocage (25, 26) à leur partie supérieure, sur lesquels on dispose une deuxième couche C' de briques réfractaires dont le dessous comporte des éléments de blocage équivalents complémentaires. Ainsi, les deux couches sont reliées l'une à l'autre et l'on obtient une structure à la stabilité éprouvée par rapport aux charges thermiques et mécaniques.
Holden Inge
Ruud Anders
Werge-Olsen Arne
Fetherstonhaugh & Co.
Norsk Hydro Asa
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