F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
F27B 7/22 (2006.01) C21B 11/06 (2006.01) C21B 13/08 (2006.01) C21C 5/42 (2006.01) F27B 3/06 (2006.01) F27B 7/20 (2006.01)
Patent
CA 2261166
A metallurgical furnace unit (1) includes a cylindrical furnace body (2) which is intended for rotation and/or tilting or like movement and is provided with at least one ring (7) mounted outside the furnace body (2) and functioning to enable such movement to take place. Each ring (7) is spaced from the furnace body (2) and connected to said body by means of a force transferring supporting-member (6) that extends in the longitudinal direction of the furnace unit (1). The supporting member (6) is adapted to prevent the transfer of furnace body movements caused by thermal expansion to the ring (7), and to take-up external loads from the intrinsic weight of the furnace body and the weight of the furnace charge. The invention is characterized in that the supporting member (6) has the form of a closed mantle which surrounds the furnace body (2) and which is connected to the furnace body (2) and to the ring (7) respectively by means of a flexible attachment that permits a given, limited change in the angle between the mantle (6) and the furnace body (2). This angle may change as a result of movements of the furnace body (2) caused by thermal expansion. As a result of the inventive design of these attachments, these movements are eliminated, in the absence of any significant curvature or other deformation of the actual mantle (6).
L'invention concerne un four métallurgique (1) comprenant un corps cylindrique (2) destiné à être soumis à une rotation et/ou un basculement ou un mouvement équivalent et doté au moins d'un anneau (7) monté à l'extérieur du corps (2) et fonctionnant de manière à autoriser un tel mouvement. Chaque anneau (7) est espacé du corps (2) en y étant relié par un support (6) qui permet le transfert de force et s'étend dans le sens longitudinal de l'unité four (1). Le support (6) permet d'empêcher le transfert à l'anneau (7) des mouvements du corps dus à la dilatation thermique, et d'absorber les charges extérieures dues au poids intrinsèque du corps et au poids de la charge du four. L'invention est caractérisée en ce que le support (6) a la forme d'une enveloppe fermée entourant le corps (2) et est relié respectivement au corps (2) et à l'anneau (7) au moyen d'une attache flexible qui autorise un changement limité et donné de l'angle formé par l'enveloppe (6) et le corps (2). Cet angle peut changer en raison des mouvements du corps (2) dus à la dilatation thermique. Grâce à la conception de ce four, ces mouvements sont supprimés en l'absence de toute incurvation ou autre déformation importante de l'enveloppe (6) elle-même.
Kagstrom Per
Lundin Lars
Marklund Sam
Boliden Contech Ab
Gowling Lafleur Henderson Llp
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