EP 1322900 B1 20051102 - METHOD FOR HEATING METALLURGICAL PRODUCTS
Title (en)
METHOD FOR HEATING METALLURGICAL PRODUCTS
Title (de)
VERFAHREN ZUM ERWÄRMEN METAlLURGISCHER PRODUKTE
Title (fr)
PROCEDE DE RECHAUFFAGE DE PRODUITS METALLURGIQUES
Publication
Application
Priority
- FR 0102772 W 20010906
- FR 0011480 A 20000908
Abstract (en)
[origin: WO0221061A1] The invention concerns a method for heating metallurgical products which consists in heating solid products, in particular steel so as to bring them from a temperature substantially lower than 400 DEG C to a temperature at least about 1000 DEG C by being passed in a furnace comprising an upstream zone wherein said products are preheated and a downstream zone wherein said products are brought to their final furnace output temperature, the downstream zone being equipped with burners some of which at least operate with an oxidiser which is air, the fumes generated by said burners circulate counter-current to the products and hence preheat the latter in the upstream preheating zone. The invention is characterised in that it consists in providing at least one burner in the upstream preheating zone of the furnace, said burner being supplied with a mixture of oxidiser and fuel, the oxidiser containing more than 20 % and preferably more than 30 % by volume of oxygen.
IPC 1-7
IPC 8 full level
C21D 1/52 (2006.01); F27B 9/30 (2006.01); F27B 9/36 (2006.01)
CPC (source: EP US)
C21D 1/52 (2013.01 - EP US); F27B 9/3005 (2013.01 - EP US); F27B 9/36 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0221061 A1 20020314; AT E308731 T1 20051115; AU 8781901 A 20020322; CN 1460170 A 20031203; DE 60114653 D1 20051208; DE 60114653 T2 20060810; EP 1322900 A1 20030702; EP 1322900 B1 20051102; FR 2813893 A1 20020315; FR 2813893 B1 20030321; US 2002050670 A1 20020502; US 6652681 B2 20031125
DOCDB simple family (application)
FR 0102772 W 20010906; AT 01967440 T 20010906; AU 8781901 A 20010906; CN 01815234 A 20010906; DE 60114653 T 20010906; EP 01967440 A 20010906; FR 0011480 A 20000908; US 94803701 A 20010907