EP 1790738 A1 20070530 - Control of a melting process

Title (en)

Control of a melting process

Title (de)

Kontrolle eines Schmelzprozesses

Title (fr)

Contrôle d'un processus de fusion

Publication

EP 1790738 A1 20070530 (EN)

Application

EP 05026027 A 20051129

Priority

EP 05026027 A 20051129

Abstract (en)

The invention relates to a method to control a process for heating or melting a metal (2), in particular aluminium, comprising the steps: - heating said metal (2) in a fuel-fired furnace (1) wherein a fuel is combusted with an oxygen containing gas, - measuring (9, 10) the concentrations of carbon dioxide and oxygen in the furnace atmosphere, - calculating the theoretical concentration of oxygen in the furnace atmosphere on the basis of said concentration of carbon dioxide, - determining the difference between said theoretical concentration of oxygen and said detected concentration of oxygen and - controlling said process depending on said difference.

IPC 8 full level

C22B 21/00 (2006.01); F27D 7/00 (2006.01)

CPC (source: EP US)

C22B 21/0084 (2013.01 - EP US)

Citation (search report)

[A] FR 2824130 A1 20021031 - AIR LIQUIDE [FR]
[A] EP 1243663 A2 20020925 - LINDE AG [DE]
[A] DE 10325557 A1 20041223 - LINDE AG [DE]
[A] US 2003233212 A1 20031218 - VON DRASEK WILLIAM A [US], et al
[A] US 6612154 B1 20030902 - BLUMENTHAL ROBERT N [US], et al
[A] WO 0201190 A2 20020103 - THOMSON MURRAY [CA], et al
[A] WO 2004099453 A1 20041118 - AIR LIQUIDE [FR], et al
[A] WO 2005085732 A1 20050915 - AIR LIQUIDE [FR], et al
[AD] US 2005103159 A1 20050519 - DUCROCQ JEAN [FR]
[A] DOCQUIER N ET AL: "Combustion control and sensors: a review", PROGRESS IN ENERGY AND COMBUSTION SCIENCE, ELSEVIER SCIENCE PUBLISHERS, AMSTERDAM, NL, vol. 28, no. 2, 2002, pages 107 - 150, XP004332227, ISSN: 0360-1285

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR

Designated extension state (EPC)

AL BA HR MK YU

DOCDB simple family (publication)

EP 1790738 A1 20070530; EP 1790738 B1 20080813; AT E404703 T1 20080815; BR PI0619375 A2 20110927; DE 602005008994 D1 20080925; US 2009218736 A1 20090903; WO 2007062753 A1 20070607

DOCDB simple family (application)

EP 05026027 A 20051129; AT 05026027 T 20051129; BR PI0619375 A 20061117; DE 602005008994 T 20051129; EP 2006011062 W 20061117; US 9501806 A 20061117