EP0762068B1 - Verfahren zum Betreiben eines Sauerstoff-verzehrenden metallurgischen Schachtofens - Google Patents
Verfahren zum Betreiben eines Sauerstoff-verzehrenden metallurgischen Schachtofens Download PDFInfo
- Publication number
- EP0762068B1 EP0762068B1 EP96112619A EP96112619A EP0762068B1 EP 0762068 B1 EP0762068 B1 EP 0762068B1 EP 96112619 A EP96112619 A EP 96112619A EP 96112619 A EP96112619 A EP 96112619A EP 0762068 B1 EP0762068 B1 EP 0762068B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oxygen
- furnace
- shaft
- delivery medium
- gases
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000001301 oxygen Substances 0.000 claims abstract description 26
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 26
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007789 gas Substances 0.000 claims abstract description 20
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 8
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 238000002485 combustion reaction Methods 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 11
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 4
- 239000001569 carbon dioxide Substances 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910001092 metal group alloy Inorganic materials 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 claims description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012876 carrier material Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
- F27B1/16—Arrangements of tuyeres
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/02—Making pig-iron other than in blast furnaces in low shaft furnaces or shaft furnaces
Definitions
- the invention relates to a method for operating an oxygen-consuming Shaft furnace, in particular a cupola furnace, for the production of metals, especially of cast iron, and metal alloys, in which the furnace shaft with a corresponding insert is filled or continuously or discontinuously filled and the bottom of the cast iron melt is removed, and the Oven shaft, in particular in its lower area containing oxygen Gas mixture is supplied by means of at least one injector nozzle, where as Pumped medium uses oxygen or oxygen mixed with other gases becomes.
- DE-OS 41 22 381 describes a generic method for operating a Cupola for the production of cast iron known.
- the furnace shaft in the lower area is wind, that is air, and if necessary additionally oxygen. It is necessary to feed wind into the furnace shaft because this enables the combustion of the coke pack.
- the wind is fed via large fans.
- oxygen is added to the wind or the Coke combustion is intensified by supplying oxygen via oxygen lances.
- a fan is always required to direct the wind to the combustion.
- air blowers are comparatively expensive.
- cycle gas processes are also known - see, for example, DE-A-43 01 322 -, the main feature of which is the return of the furnace gas from the chemically neutral shaft zone in the combustion zone.
- the use of such a nozzle burner has done so far used costly blowers superfluous.
- the object of the present invention is to provide a method for operating an oxygen-consuming device Shaft furnace, in particular a cupola furnace, and one Shaft furnace, in particular to specify a cupola furnace, or the said Avoids disadvantages.
- the oxygen-containing gas mixture or the oxygen Tank systems is provided, pumps or compressors are unnecessary.
- the oxygen-containing gas mixture is advantageously supplied or the wind in the furnace shaft in the area of the wind zone of the furnace shaft, there in this area of the furnace shaft the actual combustion, for the purpose the supply of the oxygen-containing gas mixture or the wind takes place, he follows. This also improves the metallurgy of the melting process. The resulting savings in C, Si and Mn carrier materials result to reduce the class costs.
- the Pumped medium is a mixture of oxygen and air.
- the combustion temperature can be reduced regulated, checked and, accordingly, within the furnace shaft the current parameters of feed composition, cast iron / Slag, etc., can be varied.
- the combustion temperature in a large range and according to the desired reaction or Set parameters.
- the amount of air sucked in by the pumped medium is, according to another advantageous embodiment of the method according to the invention, between the 0.1- and 10 times the amount of fluid handled.
- the shaft furnace has other gases via the injector nozzle (s), in particular carbon dioxide or carbon monoxide can be supplied.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- General Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Heat Treatment Of Articles (AREA)
- Manufacture Of Iron (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Golf Clubs (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19531604 | 1995-08-28 | ||
DE19531604 | 1995-08-28 | ||
DE19622695A DE19622695A1 (de) | 1995-08-28 | 1996-06-05 | Verfahren zum Betreiben eines Sauerstoff-verzehrenden Schachtofens und Schachtofen zum Durchführen des Verfahrens |
DE19622695 | 1996-06-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0762068A1 EP0762068A1 (de) | 1997-03-12 |
EP0762068B1 true EP0762068B1 (de) | 2000-11-22 |
Family
ID=26018062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP96112619A Expired - Lifetime EP0762068B1 (de) | 1995-08-28 | 1996-08-05 | Verfahren zum Betreiben eines Sauerstoff-verzehrenden metallurgischen Schachtofens |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0762068B1 (cs) |
AT (1) | ATE197734T1 (cs) |
CZ (1) | CZ292393B6 (cs) |
ES (1) | ES2153924T3 (cs) |
HU (1) | HUP9602352A3 (cs) |
PL (1) | PL183679B1 (cs) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102007025663A1 (de) * | 2007-06-01 | 2008-12-04 | Linde Ag | Verfahren zur gesteuerten Koksumsetzung in Kupolöfen |
DE102008048779A1 (de) | 2008-09-24 | 2010-03-25 | Linde Ag | Schachtofen mit Gichtgasrückführung |
DE102009006573A1 (de) | 2009-01-29 | 2010-08-05 | Linde Aktiengesellschaft | Verfahren zum Schmelzen von Einsatzmaterial in einem Kupolofen |
DE102011115450A1 (de) | 2011-10-08 | 2013-04-11 | Linde Aktiengesellschaft | Schachtofen mit Gichtgasrückführung |
DE102012017066A1 (de) | 2012-08-28 | 2014-03-06 | fusoris engineering GmbH & Co. KG | Schachtofen und Verfahren zur Gichtgasnachverbrennung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4122381A1 (de) * | 1991-07-05 | 1993-01-07 | Linde Ag | Verfahren zum betreiben eines kupolofens |
DE4301322C2 (de) * | 1993-01-20 | 1994-12-15 | Feustel Hans Ulrich Dipl Ing | Verfahren und Einrichtung zum Schmelzen von eisenmetallischen Werkstoffen |
DE4338985C2 (de) * | 1993-11-15 | 1996-07-18 | Hans Ulrich Dipl Ing Feustel | Kokslos betriebener Herd-Schacht-Ofen |
WO1996000798A1 (de) * | 1994-06-29 | 1996-01-11 | Ingitec Gbr | Düsensystem für eine einrichtung zum schmelzen von eisenmetallischen werkstoffen in einem koksbeheizten kupolofen |
-
1996
- 1996-07-12 PL PL96315238A patent/PL183679B1/pl not_active IP Right Cessation
- 1996-07-29 CZ CZ19962243A patent/CZ292393B6/cs not_active IP Right Cessation
- 1996-08-05 ES ES96112619T patent/ES2153924T3/es not_active Expired - Lifetime
- 1996-08-05 AT AT96112619T patent/ATE197734T1/de not_active IP Right Cessation
- 1996-08-05 EP EP96112619A patent/EP0762068B1/de not_active Expired - Lifetime
- 1996-08-27 HU HU9602352A patent/HUP9602352A3/hu unknown
Non-Patent Citations (1)
Title |
---|
Firmenprospekt: Linde-HIGHJET-Verfahren * |
Also Published As
Publication number | Publication date |
---|---|
PL183679B1 (pl) | 2002-06-28 |
HU9602352D0 (en) | 1996-10-28 |
ES2153924T3 (es) | 2001-03-16 |
ATE197734T1 (de) | 2000-12-15 |
PL315238A1 (en) | 1997-03-03 |
CZ224396A3 (en) | 1997-03-12 |
EP0762068A1 (de) | 1997-03-12 |
HUP9602352A2 (hu) | 1998-04-28 |
HUP9602352A3 (en) | 1999-03-01 |
CZ292393B6 (cs) | 2003-09-17 |
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