PL183679B1 - Method of operating a shaft furnace with oxygen admission and shaft furnace with oxygen admission - Google Patents
Method of operating a shaft furnace with oxygen admission and shaft furnace with oxygen admissionInfo
- Publication number
- PL183679B1 PL183679B1 PL96315238A PL31523896A PL183679B1 PL 183679 B1 PL183679 B1 PL 183679B1 PL 96315238 A PL96315238 A PL 96315238A PL 31523896 A PL31523896 A PL 31523896A PL 183679 B1 PL183679 B1 PL 183679B1
- Authority
- PL
- Poland
- Prior art keywords
- furnace
- shaft
- oxygen
- gas mixture
- stream
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000001301 oxygen Substances 0.000 title claims abstract description 16
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 25
- 239000000203 mixture Substances 0.000 claims abstract description 13
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000002485 combustion reaction Methods 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 claims abstract description 4
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 3
- 239000000956 alloy Substances 0.000 claims abstract description 3
- 229910052751 metal Inorganic materials 0.000 claims abstract description 3
- 239000002184 metal Substances 0.000 claims abstract description 3
- 150000002739 metals Chemical class 0.000 claims abstract description 3
- 239000007787 solid Substances 0.000 claims abstract description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 2
- 239000001569 carbon dioxide Substances 0.000 claims description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 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
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)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Golf Clubs (AREA)
Abstract
1. Sposób prowadzenia pieca szybowego do wytwarzania metali i stopów, zasilanego tlenem, zwlaszcza zeliwiaka, do szybu którego doprowadza sie ciagle wzglednie okresowo skladniki stale, natomiast od dolu spuszcza sie wytop, zas do dolnej strefy szybu pieca, doprowadza sie, za pomoca przynajmniej jednej dyszy, strumien gazów zawierajacy tlen w polaczeniu z innymi gazami, znamienny tym, ze do szybu pieca wraz ze strumieniem mie- szaniny gazów zawierajacej azot w ilosci do 80% objetosciowo w stosunku do objetosci mieszaniny gazów, doprowadza sie powietrze niezbedne do calkowitego spalania, zasysane bezposrednio z otoczenia pieca. PL 1. A method of running a shaft furnace for the production of metals and alloys, powered by oxygen, especially a cupola furnace, to the shaft of which solid components are fed continuously or periodically, while melt is released from the bottom, and the lower zone of the furnace shaft is fed using at least one nozzle, a stream of gases containing oxygen in combination with other gases, characterized in that the air necessary for complete combustion, sucked in, is fed into the furnace shaft together with the stream of gas mixture containing nitrogen in an amount of up to 80% by volume in relation to the volume of the gas mixture directly from the furnace surroundings. PL
Description
Przedmiotem wynalazku jest sposób prowadzenia pieca szybowego zasilanego tlenem, zwłaszcza żeliwiaka, przeznaczonego do wytwarzania szczególnie żeliwa i stopów metali.The present invention relates to a method for operating an oxygen-fed shaft furnace, in particular a cupola furnace, intended for the production of especially cast iron and metal alloys.
Z niemieckiego opisu patentowego nr DE 41 22 381 znany jest sposób eksploatacji żeliwiaka polegający na tym, że do dolnej strefy szybu pieca nadmuchuje się powietrze lub powietrze z dodatkiem tlenu. Doprowadzenie powietrza do szyby pieca jest niezbędne dla spalania koksu stanowiącego jeden ze składników wsadu.DE 41 22 381 describes a method of operating the cupola, whereby air or air with the addition of oxygen is blown into the lower zone of the furnace shaft. The air supply to the furnace shaft is necessary for the combustion of coke, which is one of the feed components.
Z niemieckiego opisu patentowego nr DE 43 01 322 znany jest sposób zasilania pieca gazem, polegający na tym, że gaz z chemicznie obojętnej strefy szybu pieca doprowadza się do strefy spalania. Ponadto do pieca doprowadza się pod ciśnieniem tlen poprzez dyszę wlotową. Na skutek panującego w tej dyszy wlotowej podciśnienia zasysany jest wtórny gaz, który wraz z tlenem jest doprowadzany do pieca.DE 43 01 322 discloses a method of feeding a furnace with gas, whereby gas from the chemically inert zone of the furnace shaft is fed to the combustion zone. In addition, oxygen is supplied to the furnace under pressure via an inlet nozzle. Due to the negative pressure prevailing in this inlet nozzle, secondary gas is drawn in and fed into the furnace together with the oxygen.
Realizacja tych znanych sposobów eksploatacji pieca, wymaga stosowania dmuchaw o dużej wydajności, zużywających znaczne ilości energii elektrycznej.The implementation of these known methods of operating the furnace requires the use of high-efficiency blowers, consuming significant amounts of electricity.
Celem wynalazku jest opracowanie sposobu eksploatacji pieca szybowego, eliminującego niedogodności znanych sposobów.The object of the invention is to provide a method of operating a shaft furnace which overcomes the drawbacks of known methods.
Cel ten według wynalazku zrealizowano poprzez opracowanie sposobu prowadzenia pieca szybowego do wytwarzania metali i stopów, zasilanego tlenem, zwłaszcza żeliwiaka, do szybu którego doprowadza się ciągle względnie okresowo składniki stałe, natomiast od dołu spuszcza się wytop, zaś do dolnej strefy szybu pieca, doprowadza się, za pomocą przynajmniej jednej dyszy, strumień gazów zawierający tlen w połączeniu z innymi gazami, polegającego na tym, że do szybu pieca wraz ze strumieniem mieszaniny gazów zawierającej azot w ilości do 80% objętościowo w stosunku do objętości mieszaniny gazów, doprowadza się powietrze niezbędne do całkowitego spalania, zasysane bezpośrednio z otoczenia pieca. Objętość zassanego przez strumień gazów powietrza wynosi od 0,1 do 10 objętości strumienia mieszaniny gazów. Jako składnik strumienia mieszaniny gazów stosuje się tlen. Korzystnym jest gdy do szybu pieca za pomocą przynajmniej jednej dyszy iniekcyjnej doprowadza się tlenek węgla względnie dwutlenek węgla.This object is achieved according to the invention by developing a method for guiding an oxygen-fed shaft furnace for the production of metals and alloys, in particular a cupola furnace, in which solid components are continuously or periodically fed, while the melt is tapped downwards and fed into the lower zone of the furnace shaft. by means of at least one nozzle, an oxygen-containing gas stream in combination with other gases, whereby the necessary air is supplied to the furnace shaft together with the stream of the gas mixture containing nitrogen in an amount of up to 80% by volume in relation to the volume of the gas mixture. complete combustion, sucked directly from the vicinity of the stove. The volume of the air sucked in by the gas stream is 0.1 to 10 times the volume of the gas mixture stream. Oxygen is used as a component of the gas mixture stream. It is advantageous if carbon monoxide or carbon dioxide is fed into the furnace shaft by means of at least one injection nozzle.
183 679183 679
PrzykładExample
Do dolnej strefy szybu pieca nadmuchuje się, za pomocą dyszy strumień mieszaniny gazów zawierającej 80% objętościowo azotu. Drugim składnikiem mieszaniny jest tlen. Ilość powietrza zassanego z otoczenia przez strumień gazów przepływających przez dyszę stanowi 10-krotność objętości strumienia mieszaniny gazów.A gas mixture containing 80% by volume nitrogen is blown into the lower zone of the furnace shaft through a nozzle. The second component of the mixture is oxygen. The amount of air sucked in from the surroundings by the gas stream flowing through the nozzle is 10 times the volume of the gas mixture stream.
Sposób prowadzenia pieca szybowego według wynalazku pozwala na wyeliminowanie kosztownych dmuchaw oraz związanych z nimi przewodów nadmuchowych, a także przynosi znaczne oszczędności energii elektrycznej. Ponadto, dzięki możliwości zmiany stosunku ilości tlenu do azotu pozwala na regulację temperatury wewnątrz pieca.The method of guiding a shaft furnace according to the invention allows for the elimination of costly blowers and the associated blower ducts, and also brings significant savings in electricity. Moreover, it allows the temperature inside the furnace to be regulated by changing the ratio of oxygen to nitrogen.
183 679183 679
Departament Wydawnictw UP RP. Nakład 50 egz Cena 2,00 zł.Publishing Department of the UP RP. Mintage 50 copies Price PLN 2.00.
Claims (4)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19531604 | 1995-08-28 | ||
| DE19622695A DE19622695A1 (en) | 1995-08-28 | 1996-06-05 | Method for operating an oxygen-consuming shaft furnace and shaft furnace for carrying out the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL315238A1 PL315238A1 (en) | 1997-03-03 |
| PL183679B1 true PL183679B1 (en) | 2002-06-28 |
Family
ID=26018062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL96315238A PL183679B1 (en) | 1995-08-28 | 1996-07-12 | Method of operating a shaft furnace with oxygen admission and shaft furnace with oxygen admission |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0762068B1 (en) |
| AT (1) | ATE197734T1 (en) |
| CZ (1) | CZ292393B6 (en) |
| ES (1) | ES2153924T3 (en) |
| HU (1) | HUP9602352A3 (en) |
| PL (1) | PL183679B1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007025663A1 (en) | 2007-06-01 | 2008-12-04 | Linde Ag | Process for controlled coke conversion in cupola furnaces |
| DE102008048779A1 (en) | 2008-09-24 | 2010-03-25 | Linde Ag | Method for melting burden material in shaft furnace i.e. cupola furnace, involves mixing part of furnace gas with oxygenic gases and further introducing into shaft furnace, and supplying additional preheated combustion air to shaft furnace |
| DE102009006573A1 (en) | 2009-01-29 | 2010-08-05 | Linde Aktiengesellschaft | Process for melting feedstock in a cupola furnace |
| DE102011115450A1 (en) | 2011-10-08 | 2013-04-11 | Linde Aktiengesellschaft | Shaft furnace i.e. cupola furnace, for melting cast iron, has blast furnace gas conduits for connecting fume hood and blast furnace gas burners and opening into flushing pipe that is provided with fan |
| DE102012017066A1 (en) | 2012-08-28 | 2014-03-06 | fusoris engineering GmbH & Co. KG | Shaft furnace i.e. cupola furnace, for melting e.g. raw material, has outlet for combustion gases and arranged above feeding aperture, and oxygen supply and ignition device arranged below aperture during functional alignment of furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4122381A1 (en) * | 1991-07-05 | 1993-01-07 | Linde Ag | METHOD FOR OPERATING A COUPLING OVEN |
| DE4301322C2 (en) * | 1993-01-20 | 1994-12-15 | Feustel Hans Ulrich Dipl Ing | Process and device for melting ferrous metal materials |
| DE4338985C2 (en) * | 1993-11-15 | 1996-07-18 | Hans Ulrich Dipl Ing Feustel | Coke-free stove-shaft furnace |
| WO1996000798A1 (en) * | 1994-06-29 | 1996-01-11 | Ingitec Gbr | Nozzle system for a device for melting iron metallic materials in a coke-heated cupola furnace |
-
1996
- 1996-07-12 PL PL96315238A patent/PL183679B1/en not_active IP Right Cessation
- 1996-07-29 CZ CZ19962243A patent/CZ292393B6/en not_active IP Right Cessation
- 1996-08-05 EP EP96112619A patent/EP0762068B1/en not_active Expired - Lifetime
- 1996-08-05 ES ES96112619T patent/ES2153924T3/en not_active Expired - Lifetime
- 1996-08-05 AT AT96112619T patent/ATE197734T1/en not_active IP Right Cessation
- 1996-08-27 HU HU9602352A patent/HUP9602352A3/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CZ224396A3 (en) | 1997-03-12 |
| PL315238A1 (en) | 1997-03-03 |
| EP0762068B1 (en) | 2000-11-22 |
| HUP9602352A2 (en) | 1998-04-28 |
| ES2153924T3 (en) | 2001-03-16 |
| HU9602352D0 (en) | 1996-10-28 |
| HUP9602352A3 (en) | 1999-03-01 |
| EP0762068A1 (en) | 1997-03-12 |
| CZ292393B6 (en) | 2003-09-17 |
| ATE197734T1 (en) | 2000-12-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Decisions on the lapse of the protection rights |
Effective date: 20080712 |