EP 0336121 A3 19910403 - PROCESS FOR OPERATING A CUPOLA FURNACE
Title (en)
PROCESS FOR OPERATING A CUPOLA FURNACE
Publication
Application
Priority
DE 3811166 A 19880331
Abstract (en)
[origin: EP0336121A2] In a process for producing cast iron in various grades of different carbon contents, a cast iron grade of a defined charge make-up, essentially consisting of defined proportions of iron, coke and limestone, is produced. A different cast iron grade requires a charge of correspondingly different composition. To make the operation of a cupola furnace more flexible, carbon-containing material is introduced into the cupola furnace in the form of dust to influence the carbon content of the iron produced, namely in a quantity depending on the carbon content of the cast iron grade to be produced.
IPC 1-7
IPC 8 full level
C21B 11/02 (2006.01); C21C 1/08 (2006.01); F27B 1/08 (2006.01); F27B 1/20 (2006.01)
CPC (source: EP)
C21B 11/02 (2013.01); C21C 1/08 (2013.01); F27B 1/20 (2013.01)
Citation (search report)
- [A] US 4198228 A 19800415 - JORDAN ROBERT K [US]
- [A] DE 822089 C 19511122 - THYSSENSCHE GAS UND WASSERWERK
- [A] GB 109452 A
- [A] DE 55049 C
- [A] FR 652670 A 19290312 - PONT A MOUSSON FOND
- [A] WO 8605520 A1 19860925 - BRITISH STEEL CORP [GB]
- [A] DE 1433357 A1 19681219 - REXROTH ALFRED
- [A] GB 157397 A 19220710 - LUCIEN PAUL BASSET
- [X] GIESSEREI, Band 75, Nr. 1, 11. Januar 1988, Seiten 12-16, Düsseldorf, DE; M. ROSSMANN: "Gleichzeitiges Einblasen von Sauerstoff und Kohlenstaub in den Kupolofen"
Designated contracting state (EPC)
AT BE DE FR GB NL
DOCDB simple family (publication)
EP 0336121 A2 19891011; EP 0336121 A3 19910403; EP 0336121 B1 19940928; AT E112325 T1 19941015; BR 8901468 A 19891114; DE 3811166 A1 19891019; DE 58908426 D1 19941103; ZA 892304 B 19891129
DOCDB simple family (application)
EP 89103823 A 19890304; AT 89103823 T 19890304; BR 8901468 A 19890330; DE 3811166 A 19880331; DE 58908426 T 19890304; ZA 892304 A 19890329