EP 2649207 A1 20131016 - METHOD FOR FEEDING HOT GAS TO A SHAFT FURNACE
Title (en)
METHOD FOR FEEDING HOT GAS TO A SHAFT FURNACE
Title (de)
VERFAHREN FÜR DIE ZUFÜHRUNG VON HEISSGAS ZU EINEM SCHACHTOFEN
Title (fr)
PROCÉDÉ PERMETTANT D'ALIMENTER EN GAZ CHAUD UN FOUR À CUVE
Publication
Application
Priority
- LU 91764 A 20101210
- EP 2011072373 W 20111209
Abstract (en)
[origin: WO2012076707A1] The present invention proposes a method for feeding hot gas to a shaft furnace, in particular into a blast furnace. The method comprises providing a tuyere stock arrangement comprising a bustle pipe (56) arranged for receiving hot gas form a gas main (58) and a plurality of tuyere stocks (18) for feeding hot gas from said bustle pipe (56) into said shaft furnace, said tuyere stocks (18) being arranged around the circumference of said shaft furnace, each tuyere stock (18)comprising a downleg section (39) for connection to a bustle pipe; a blowpipe (34) for feeding the hot gas to the shaft furnace through a tuyere arranged in an opening in a shell (12) of the shaft furnace; and an elbow (37) arranged between the downleg section (39) and the blowpipe (34). According to an aspect of the invention, a Laval type restriction (40, 40', 40'') is arranged in the tuyere stock (18).
IPC 8 full level
C21B 7/16 (2006.01)
CPC (source: EP KR)
C21B 7/16 (2013.01 - KR); C21B 7/163 (2013.01 - EP)
Citation (search report)
See references of WO 2012076707A1
Citation (examination)
US 966704 A 19100809 - PICKLES JOHN [US]
Designated contracting state (EPC)
AL 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 RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2012076707 A1 20120614; BR 112013014354 A2 20160927; EP 2649207 A1 20131016; KR 20140043309 A 20140409; LU 91764 B1 20120611; RU 2013131400 A 20150120
DOCDB simple family (application)
EP 2011072373 W 20111209; BR 112013014354 A 20111209; EP 11802889 A 20111209; KR 20137017949 A 20111209; LU 91764 A 20101210; RU 2013131400 A 20111209