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1. FR2765316 - FOUR ELECTRIQUE A TROU DE COULEE EXCENTRE ET PROCEDE D'ELABORATION D'ACIER DANS CE FOUR

Office
France
Application Number 9708322
Application Date 30.06.1997
Publication Number 2765316
Publication Date 31.12.1998
Grant Number 2765316
Grant Date 12.11.1999
Publication Kind B1
IPC
F27B 3/19
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS, OVENS OR RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
3Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces
10Details, accessories, or equipment, e.g. dust-collectors, peculiar to hearth-type furnaces
19Arrangement of devices for discharging
F27D 3/15
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS, OVENS OR RETORTS
DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
3Charging; Discharging; Manipulation of charge
15Tapping equipment; Equipment for removing slag
CPC
F27B 3/19
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
3Hearth-type furnaces, e.g. of reverberatory type
10Details, accessories, or equipment peculiar to hearth-type furnaces
19Arrangements of devices for discharging
F27D 3/1536
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
3Charging; Discharging; Manipulation of charge
15Tapping equipment; Equipment for removing ; or retaining; slag
1509Tapping equipment
1536Devices for plugging tap holes, e.g. plugs stoppers
Applicants VESUVIUS FRANCE SA
Inventors RICHARD FRANCOIS NOEL
CECI TONI
Priority Data 9708322 30.06.1997 FR
Title
(FR) FOUR ELECTRIQUE A TROU DE COULEE EXCENTRE ET PROCEDE D'ELABORATION D'ACIER DANS CE FOUR
Abstract
(EN) The invention concerns an electric-arc furnace with an off-center taphole (26) through the bottom, designed for steel making and known under the name of an EBT furnace. It is comprised of a vat (4) for receiving the metal to be melted, and a protuberance (6) that prolongs the vat (4) laterally. A roof covers the protuberance (6). An upper wall prolongs the vertical wall of the vat (4). An arch (12) covers the upper walls of the vat (4), this arch (12) capable of being retracted laterally in a sweep zone, a taphole (26) being provided in the bottom of the provided protuberance (6). A closure device for the taphole (26) is comprised of a stopper (32), handling means for displacing the stopper (32) between a rest position, a waiting position in which the lower end of the stopper (32) is close to the taphole (26), and a closure position in which the stopper (32) closes off the entrance to the taphole (26), at least partially.
(FR)

L'invention concerne un four électrique à arc à trou de coulée (26) excentré par le fond, destiné à l'élaboration de l'acier, et connu sous le nom de four EBT. Il comprend une cuve (4) destinée à recevoir le métal à fondre, et une excroissance (6) prolongeant latéralement la cuve (4). Un plafond recouvre l'excroissance (6), une paroi supérieure prolongeant la paroi verticale de la cuve (4), une voûte (12) recouvrant les parois supérieure de la cuve (4), cette voûte (12) pouvant être escamotée latéralement dans une zone de balayage, un trou de coulée (26) étant ménagé dans le fond de l'excroissance (6). Un dispositif d'obturation du trou de coulée (26) est constitué d'un tampon (32), de moyens de manutention pour déplacer le tampon (32) entre une position de repos, une position d'attente dans laquelle l'extrémité inférieure du tampon (32) est proche du trou de coulée (26) une position d'obturation, dans laquelle le tampon (32) obture au moins partiellement l'entrée du trou de coulée (26).


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