Global Patent Index - EP 1960557 A1

EP 1960557 A1 20080827 - METHOD FOR SUPERSONICALLY INJECTING OXYGEN INTO A FURNACE

Title (en)

METHOD FOR SUPERSONICALLY INJECTING OXYGEN INTO A FURNACE

Title (de)

VERFAHREN ZUR ÜBERSCHALLINJKETION VON SAUERSTOFF IN EINEN OFEN

Title (fr)

PROCEDE D'INJECTION SUPERSONIQUE D'OXYGENE DANS UN FOUR

Publication

EP 1960557 A1 20080827 (FR)

Application

EP 06831276 A 20061023

Priority

  • FR 2006051080 W 20061023
  • FR 0553430 A 20051110

Abstract (en)

[origin: WO2007057588A1] The invention relates to a method and device for supersonically injecting oxygen into a furnace, in particular a cupola furnace, in which the total oxygen required for the furnace operation is injected with the aid of two distinct circuits, i.e., the first circuit comprising at least one supersonic oxygen injecting nozzle and a second circuit which comprises additionally oxygen injecting means and is connected to the first circuit by pressure-sensitive means, such as a discharging device (or upstream pressure adjuster), in such a way that a stable pressure is obtained in the first circuit upon the attainment of the maximum flowrate thereof, wherein the first circuit can consists of several supersonic nozzle groups.

IPC 8 full level

C21B 5/00 (2006.01); C21B 7/16 (2006.01)

CPC (source: EP US)

C21B 5/00 (2013.01 - EP US); C21B 7/163 (2013.01 - EP US); C21B 11/02 (2013.01 - EP US); F27B 1/16 (2013.01 - EP US); F27D 2019/0043 (2013.01 - EP US)

Citation (search report)

See references of WO 2007057588A1

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

DOCDB simple family (publication)

FR 2893122 A1 20070511; FR 2893122 B1 20140131; BR PI0618504 A2 20110906; BR PI0618504 B1 20160210; CN 101305104 A 20081112; CN 101305104 B 20101201; EP 1960557 A1 20080827; RU 2008123531 A 20091227; RU 2395771 C2 20100727; US 2008277843 A1 20081113; US 8317897 B2 20121127; WO 2007057588 A1 20070524

DOCDB simple family (application)

FR 0553430 A 20051110; BR PI0618504 A 20061023; CN 200680041836 A 20061023; EP 06831276 A 20061023; FR 2006051080 W 20061023; RU 2008123531 A 20061023; US 9290606 A 20061023