EP 2252710 A1 20101124 - METHOD AND DEVICE FOR PRODUCING LIQUID PIG IRON OR LIQUID STEEL PRECURSOR PRODUCTS
Title (en)
METHOD AND DEVICE FOR PRODUCING LIQUID PIG IRON OR LIQUID STEEL PRECURSOR PRODUCTS
Title (de)
VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON FLÜSSIGEM ROHEISEN ODER FLÜSSIGEN STAHLVORPRODUKTEN
Title (fr)
PROCÉDÉ ET DISPOSITIF POUR FABRIQUER DES FONTES BRUTES LIQUIDES OU DES DEMI-PRODUITS LIQUIDES EN ACIER
Publication
Application
Priority
- EP 2009051058 W 20090130
- AT 4232008 A 20080317
Abstract (en)
[origin: WO2009115365A1] A method and a device are claimed for producing liquid pig iron or liquid steel precursor products made of ingredients composed of iron ores and additives thereto, wherein the ingredients are subjected to ongoing reduction in a reduction zone (1) and then fed to a melt zone or a melt system (2), in particular a melter gasifier, for melting with the addition of carbonaceous substrates and oxygen-containing gas, thereby forming a solid bed, wherein a CO and H2-containing reduction gas is formed that is introduced to the reduction zone (1), reacted there and discharged as a top gas. The method and the device provide that the hot, solid-laden top gas, after the solids are separated, is subjected to at least a dry coarse separation (5) and at least parts of the hot solids separated by the separation are returned to the melt zone or melt system (2) or the reduction system (1). In addition, the top gas is treated in a further fine separation stage (13A).
IPC 8 full level
C21B 13/14 (2006.01); C21B 13/00 (2006.01); F27D 17/00 (2006.01)
CPC (source: EP US)
C21B 13/002 (2013.01 - EP US); C21B 13/14 (2013.01 - EP US); F27D 17/008 (2013.01 - EP US); C21B 2100/44 (2017.04 - EP US); C21B 2100/62 (2017.04 - EP US); C21B 2100/66 (2017.04 - EP US); Y02P 10/134 (2015.11 - EP US); Y02P 10/25 (2015.11 - US)
Citation (search report)
See references of WO 2009115365A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA RS
DOCDB simple family (publication)
WO 2009115365 A1 20090924; AR 070884 A1 20100512; AT 506640 A1 20091015; AT 506640 B1 20100715; AU 2009226806 A1 20090924; AU 2009226806 B2 20131128; BR PI0908724 A2 20190924; CA 2718566 A1 20090924; CN 102057059 A 20110511; EP 2252710 A1 20101124; JP 2011515579 A 20110519; KR 20100133438 A 20101221; RU 2010142381 A 20120427; RU 2487949 C2 20130720; TW 200942622 A 20091016; UA 99341 C2 20120810; US 2011030507 A1 20110210; US 9139884 B2 20150922
DOCDB simple family (application)
EP 2009051058 W 20090130; AR P090100899 A 20090313; AT 4232008 A 20080317; AU 2009226806 A 20090130; BR PI0908724 A 20090130; CA 2718566 A 20090130; CN 200980117946 A 20090130; EP 09722397 A 20090130; JP 2011500133 A 20090130; KR 20107023179 A 20090130; RU 2010142381 A 20090130; TW 98105387 A 20090220; UA A201011141 A 20090130; US 92275309 A 20090130