EP 1038980 A3 20001206 - Iron ore sintering process with reduced emissions of toxic gases by waste gas recirculation
Title (en)
Iron ore sintering process with reduced emissions of toxic gases by waste gas recirculation
Title (de)
Eisenerzsinterverfahren mit Abgasrückführung zur Verringerung der Schadstoffemissionen
Title (fr)
Agglomération de minérai de fer à émissions réduites de gaz toxiques par récirculation des effluents gazeux
Publication
Application
Priority
GB 9906323 A 19990319
Abstract (en)
[origin: EP1038980A2] A method of sintering iron ore in a sinter strand comprises providing a sinter feedstock and depositing said feedstock onto a travelling grate, igniting said feedstock using a sinter strand burner(s), and combusting said feedstock by drawing air through the feedstock with a plurality of wind boxes situated along the length of the strand, to produce sintered products rich in iron and waste gases. Waste gases from only those wind boxes whose temperature exceeds a predetermined level (200-250 DEG C) are recycled to provide combustion feed air for the feedstock or air for the sinter strand ignition burner(s), thereby substantially reducing or eliminating the production and/or emission of dioxins. <IMAGE>
IPC 1-7
IPC 8 full level
C22B 1/20 (2006.01)
CPC (source: EP)
C22B 1/205 (2013.01)
Citation (search report)
- [XA] BE 877216 A 19791224 - CENTRE RECH METALLURGIQUE
- [X] GB 707583 A 19540421 - METALLGESELLSCHAFT AG
- [X] FR 2444720 A1 19800718 - DELATTRE LEVIVIER
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1038980 A2 20000927; EP 1038980 A3 20001206; EP 1038980 B1 20050914; AT E304613 T1 20050915; DE 60022566 D1 20051020; DE 60022566 T2 20060614; ES 2248014 T3 20060316; GB 2347940 A 20000920; GB 9906323 D0 19990512
DOCDB simple family (application)
EP 00301900 A 20000308; AT 00301900 T 20000308; DE 60022566 T 20000308; ES 00301900 T 20000308; GB 9906323 A 19990319