| 54 |
Titel |
TI |
[EN] Shaft furnace and method for operating a furnace |
| 71/73 |
Anmelder/Inhaber |
PA |
THYSSENKRUPP AT PRO TEC GMBH
|
| 72 |
Erfinder |
IN |
BABICH ALEXANDER
;
GUDENAU HEINRICH-WILHELM
;
HELDT HANS-HEINRICH
;
KONIG GERD
;
KONIG WOLFRAM
;
SENK DIETER GEORG
|
| 22/96 |
Anmeldedatum |
AD |
17.06.2008 |
| 21 |
Anmeldenummer |
AN |
2008267846 |
|
Anmeldeland |
AC |
AU |
|
Veröffentlichungsdatum |
PUB |
19.01.2012 |
33
31
32 |
Priorität |
PRC
PRN
PRD |
DE
102007029629
26.06.2007
|
33
31
32 |
PRC
PRN
PRD |
EP
2008057624
17.06.2008
|
| 51 |
IPC-Hauptklasse |
ICM |
|
| 51 |
IPC-Nebenklasse |
ICS |
|
|
IPC-Zusatzklasse |
ICA |
|
|
IPC-Indexklasse |
ICI |
|
|
Gemeinsame Patentklassifikation |
CPC |
C21B 2100/64
C21B 5/06
C21B 7/002
C21B 7/007
F27B 1/16
F27B 1/26
F27D 17/004
|
|
MCD-Hauptklasse |
MCM |
C21B 5/06
(2006.01)
|
|
MCD-Nebenklasse |
MCS |
C21B 7/00
(2006.01)
F27B 1/16
(2006.01)
F27B 1/26
(2006.01)
F27D 17/00
(2006.01)
|
|
MCD-Zusatzklasse |
MCA |
|
| 57 |
Zusammenfassung |
AB |
[EN] The invention relates to a method for operating a shaft furnace (10). According to said method, an upper region (14) of the shaft furnace (10) is charged with raw materials which sink in the shaft furnace (10) under the influence of gravity. Part of the raw materials is melted and/or at least partially reduced by the action of the atmosphere inside the shaft furnace (10). A treatment gas is introduced in a lower region (18) of the shaft furnace (10) by means of at least one lower admission opening (32), said treatment gas at least partially influencing the atmosphere inside the shaft furnace (10). The introduction of the lower treatment gas is dynamically modulated such that, during the modulation, the operating variables, that is pressure p and/or volume flow (I), are varied at least temporarily over a time span of ≤ 40 s, especially ≤ 20 s, preferably ≤ 5 s and especially preferably ≤1 s. According to the invention, an addition gas is introduced via at least one addition opening (42) at a distance from the lower admission opening (32), the operating variables of the gas, that is pressure p and/or volumen flow (II), being at least temporarily varied, and/or a shaft furnace gas is derived by means of a shaft furnace gas line (50) connected to the inside (34) of the shaft furnace (10), for removing gaseous reaction products, the operating variables of the shaft furnace gas, that is pressure p and/or volume flow (III), being at least temporarily varied. The variation of the operating variables of the addition gas and/or the shaft furnace gas is carried out according to the invention in such a way that the pressure p and/or the volume flow (I) inside (34) the shaft furnace (10) is at least partially increased. |
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
in Recherche ermittelt |
CT |
US020070137436A1
US020080237944A1
WO002001036891A2
|
| 56 |
Entgegengehaltene Patentdokumente/Zitate,
vom Anmelder genannt |
CT |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
in Recherche ermittelt |
CTNP |
|
| 56 |
Entgegengehaltene Nichtpatentliteratur/Zitate,
vom Anmelder genannt |
CTNP |
|
|
Zitierende Dokumente |
|
Dokumente ermitteln
|
|
Sequenzprotokoll |
|
|
|
Prüfstoff-IPC |
ICP |
F27D 17/00
|
