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1. WO2011002467 - SLAG CONTROL IN A CHANNEL INDUCTION FURNACE

Publication Number WO/2011/002467
Publication Date 06.01.2011
International Application No. PCT/US2009/049577
International Filing Date 02.07.2009
IPC
F27D 11/06 2006.01
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
11Arrangement of elements for electric heating in or on furnaces
06Induction heating, i.e. in which the material being heated, or its container or elements embodied therein, form the secondary of a transformer
F27B 14/06 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS, OVENS OR RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
14Crucible or pot furnaces; Tank furnaces
06heated electrically, e.g. induction crucible furnaces, with or without any other source of heat
CPC
F27B 14/02
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
14Crucible or pot furnaces
02with tilting or rocking arrangements
F27B 14/061
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
14Crucible or pot furnaces
06heated electrically, e.g. induction crucible furnaces with or without any other source of heat
061Induction furnaces
F27B 14/065
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
27FURNACES; KILNS; OVENS; RETORTS
BFURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
14Crucible or pot furnaces
06heated electrically, e.g. induction crucible furnaces with or without any other source of heat
061Induction furnaces
065Channel type
F27D 17/003
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
17Arrangements for using waste heat
001Extraction of waste gases, collection of fumes and hoods used therefor
003of waste gases emanating from an electric arc furnace
Applicants
  • HERITAGE ENVIRONMENTAL SERVICES, LLC (AllExceptUS)
  • BRATINA, James, E. [US]/[US] (UsOnly)
  • ROBERTS, Thomas, Edward [US]/[US] (UsOnly)
Inventors
  • BRATINA, James, E.
  • ROBERTS, Thomas, Edward
Agents
  • GZYBOWSKI, Michael, S.
Priority Data
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SLAG CONTROL IN A CHANNEL INDUCTION FURNACE
(FR) MAÎTRISE DES SCORIES DANS UN FOUR À INDUCTION À CANAL
Abstract
(EN)
A method of operating a channel induction furnace to process a feed material and obtain therefrom at least one of a molten metal product, a vapor phase metal product and a slag product. The method involves maintaining a slag layer on the molten bath that has a thickness that is sufficient to support the feed material while minimizing heat transfer through the slag layer and minimizing the resistance of vapor phase components from transferring through the slag layer. The fluidity of the slag layer is controlled by heating the slag layer and adjusting the chemistry of the slag layer.
(FR)
L'invention concerne un procédé d'exploitation d'un four à induction à canal pour transformer un matériau de charge et obtenir à partir de celui-ci un produit métallique en fusion, un produit métallique en phase vapeur et / ou un produit de scories. Le procédé comporte une étape consistant à entretenir sur le bain de fusion une couche de scories présentant une épaisseur suffisante pour soutenir le matériau de charge tout en minimisant le transfert de chaleur à travers la couche de scories et en minimisant la résistance des constituants en phase vapeur au transfert à travers la couche de scories. La fluidité de la couche de scories est régulée en chauffant la couche de scories et en agissant sur la chimie de la couche de scories.
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