| 54 |
Title |
TI |
[DE] VERFAHREN ZUM BETREIBEN EINES SCHACHTOFENS
[EN] METHOD FOR THE OPERATION OF A SHAFT FURNACE
[FR] PROCEDE D'UTILISATION D'UN FOUR A CUVE |
| 71/73 |
Applicant/owner |
PA |
THYSSENKRUPP AT PROTEC GMBH, DE
|
| 72 |
Inventor |
IN |
BABICH ALEXANDER, DE
;
GUNDENAU HEINRICH-WILHELM, DE
;
HELDT HANS-HEINRICH, DE
;
KOENIG GERD, DE
;
KOENIG WOLFRAM, DE
;
SENK DIETER GEORG, DE
|
| 22/96 |
Application date |
AD |
Nov 9, 2006 |
| 21 |
Application number |
AN |
06840931 |
|
Country of application |
AC |
EP |
|
Publication date |
PUB |
Sep 21, 2011 |
33
31
32 |
Priority data |
PRC
PRN
PRD |
DE
102005053505
Nov 9, 2005
|
33
31
32 |
PRC
PRN
PRD |
EP
2006010752
Nov 9, 2006
|
| 51 |
IPC main class |
ICM |
C21B 5/00
(2006.01)
|
| 51 |
IPC secondary class |
ICS |
C21B 11/02
(2006.01)
F27B 1/16
(2006.01)
|
|
IPC additional class |
ICA |
|
|
IPC index class |
ICI |
|
|
Cooperative patent classification |
CPC |
C21B 11/02
C21B 5/00
C21B 5/001
F27B 1/16
F27B 1/26
F27D 19/00
|
|
MCD main class |
MCM |
C21B 5/00
(2006.01)
|
|
MCD secondary class |
MCS |
C21B 11/02
(2006.01)
F27B 1/16
(2006.01)
|
|
MCD additional class |
MCA |
|
| 57 |
Abstract |
AB |
[EN] Apparatus for operating a shaft furnace, whereby an upper section of the shaft furnace is charged with raw materials which due to gravity descend inside the furnace while the atmosphere prevailing within the shaft furnace causes part of the raw materials to melt and/or to be reduced, and in a lower section of the shaft furnace a process gas is injected so as to at least partly modify the atmosphere prevailing in the shaft furnace. The pressure and/or volume flow of the injected process gas is dynamically modulated within a time span of 40 s. Also, a shaft furnace operable by said method, thus achieving improved through-gassing. |
| 56 |
Cited documents identified in the search |
CT |
|
| 56 |
Cited documents indicated by the applicant |
CT |
|
| 56 |
Cited non-patent literature identified in the search |
CTNP |
|
| 56 |
Cited non-patent literature indicated by the applicant |
CTNP |
|
|
Citing documents |
|
Determine documents
|
|
Sequence listings |
|
|
|
Search file IPC |
ICP |
|
