SE431994B - PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL - Google Patents
PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALLInfo
- Publication number
- SE431994B SE431994B SE7800823A SE7800823A SE431994B SE 431994 B SE431994 B SE 431994B SE 7800823 A SE7800823 A SE 7800823A SE 7800823 A SE7800823 A SE 7800823A SE 431994 B SE431994 B SE 431994B
- Authority
- SE
- Sweden
- Prior art keywords
- melt
- powder
- arc
- stall
- electrode
- Prior art date
Links
- 239000000463 material Substances 0.000 title claims description 6
- 239000000155 melt Substances 0.000 claims description 13
- 239000000843 powder Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 239000012159 carrier gas Substances 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000012254 powdered material Substances 0.000 claims description 3
- 238000007670 refining Methods 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000003570 air Substances 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 206010003805 Autism Diseases 0.000 claims 1
- 208000020706 Autistic disease Diseases 0.000 claims 1
- 240000007594 Oryza sativa Species 0.000 claims 1
- 235000007164 Oryza sativa Nutrition 0.000 claims 1
- 238000003672 processing method Methods 0.000 claims 1
- 235000009566 rice Nutrition 0.000 claims 1
- 238000002347 injection Methods 0.000 description 8
- 239000007924 injection Substances 0.000 description 8
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- -1 Icromoxide Inorganic materials 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910003481 amorphous carbon Inorganic materials 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 235000014121 butter Nutrition 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010309 melting process Methods 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 210000004197 pelvis Anatomy 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/068—Decarburising
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/04—Removing impurities by adding a treating agent
- C21C7/072—Treatment with gases
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
- C22B9/10—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals with refining or fluxing agents; Use of materials therefor, e.g. slagging or scorifying agents
- C22B9/103—Methods of introduction of solid or liquid refining or fluxing agents
Description
10 15 20 25 30 7809823-2 I beroende av tillgänglig energikälla kan även derma metod bli lyckoeam, men man vill ofta ha tillgång till en lätt reglerbar energikälla med relativt hög effekt. 10 15 20 25 30 7809823-2 Depending on the available energy source, this method can also be a source of happiness, however you often want access to an easily adjustable energy source with a relatively high effect.
Uppfinningen går ut på ett lösande av dessa och andra härmed sammanhängande problem och kännetecknas därav, att en ljusbåge på. känt sätt upprätthâlles mellan elektrod och smälta samtidigt som pulvret kontinuerligt tillföras med hjälp av en bärargas under sådant tryck, att pulvret tränger ner i smältan under dess yta och önskad reaktion erhålles av smältan. Man får här således god injektionseffekt med möjlighet, till god och reglerbar energitill- försel, och ljusbågarrza kan enkelt fås att brinna på rätt sätt. Man behöver ej neddoppa någon dysa/forma eller lans i smältan med de materialpålcännizxgar, som skulle bli följden av detta, utan man använder själva ljusbågselektro- derna som injektionslans (utan Beddoppazxde). Rätt påföringstryck kan inställas på 'bärargastryckem och pâföringen kan exempelvis ske medelst ejektorverkan.The invention is based on a solution of these and others related thereto problem and is characterized by, that an arc on. known manner is maintained between electrode and melt at the same time as the powder is continuously supplied by means of a carrier gas under such pressure that the powder penetrates into the melt below its surface and the desired reaction is obtained by the melt. You get here thus good injection effect with the possibility, to good and controllable energy supply supply, and arc arrza can easily be made to burn properly. You need do not immerse a nozzle / mold or lance in the melt with the material pile cans, which would result from this, without using the arc electrons themselves as an injection lance (without Beddoppazxde). The correct application pressure can be set on the carrier gas pressure and the application can take place, for example, by means of an ejector action.
Det pulverformiga materialet, som kan vara kol, kalk, aluminium (desoxidations- medelflmischmetall, Icromoxid, ferrooxider, olika legeringstillsatser etc, ges en sådan hastighet, att den av vanlig gravitation åstadkomma hastigheten vida översl-crides, och nedträngnizzg av pulvret in i smältan erhålles, varvid erfor- derlig reaktion erhålles, exempelvis färslming av stål.The powdered material, which may be carbon, lime, aluminum (deoxidation agents fl mixed metal, Icromoxide, ferrous oxides, various alloy additives etc, are given such a velocity that the ordinary gravity produces the velocity far overflows, and penetration of the powder into the melt is obtained, thereby requiring such a reaction is obtained, for example the transfer of steel.
Detta förfaringssätt får ej förväxlas med det kända förfaringssättet för smält- reduktion av järnoxid, där pulver av järnoxid samt eventuella redaktions- och/eller raffineringsmedel tillföras en ugn eller 'behållare via, ett eldfast rör mynnande centralt i en elektrod, där elektroden är ansluten till en lik- strömskälla. och verkar som katod, badet utgör anod, varvid en ljusbåge åstad- kommas mellan katod och anod. Här tillföras oxiden till en fläck xmder ljusbågen där reduktion skall ske, men någon injicering in i smâltan är det här ej frågan Om .This procedure should not be confused with the known melting process. reduction of iron oxide, where powder of iron oxide and any and / or refining agents are added to an oven or container via a refractory tube opening centrally in an electrode, where the electrode is connected to a similar power source. and acts as a cathode, the bath forming an anode, whereby an arc between cathode and anode. Here the oxide is applied to a spot xmder the arc where reduction is to take place, but no injection into the melt is not the issue here If .
Uppfinningen är exemplifierad i bifogad figur, som schematiekt visar ett injice- riugsförfarande vid en ljusbågsugi. Pulverfomigt material, exempelvis kalk och/eller kol och/eller aluminiumoxid och/eller eventuella legerings- och/eller övriga raffineringstillsatser, tillföras från en eller flera. behållare, här schematiskt visade vid 1 i pilens 2 riktning till ett rör 10, till vilket bärar- gas föras vid pilen 5. Ejektorverkan erhålles därvid på. pulvret och medelst lämpligt tryck påföres pulvret en eller flera ihåliga ljusbågselektroder 4 att 10 15 20 25 30 7800825-2 passera via en central kanal 5 i denna. elektrod. Eventuellt kan flera kanaler finnas i samma elektrod och/eller kan flera elektroder användas, varvid samma eller olika pulver tillföras kanalerna i respektive elektroder. Elektroden ut- föres i lämpligt material, såsom pafit, amorft kol, metall etc och förses som synes med ett hål i centrum 5, genom vilket materialet transporteras på. pnemnatisk väg med 'bärargas enligt ovan, exempelvis medelst ejektorförfarande.The invention is exemplified in the accompanying figure, which schematically shows an injection riugs procedure at an arc suction. Powdered material, for example lime and / or carbon and / or alumina and / or any alloys and / or other refining additives, are added from one or more. container, here schematically shown at 1 in the direction of the arrow 2 to a tube 10, to which carrier gas is passed at arrow 5. The ejector effect is then obtained on. the powder and by appropriate pressure, the powder is applied to one or more hollow arc electrodes 4 to 10 15 20 25 30 7800825-2 pass through a central channel 5 in this. electrode. Possibly several channels are in the same electrode and / or several electrodes can be used, the same or different powders are supplied to the channels in the respective electrodes. The electrode out- is carried out in suitable material such as pafite, amorphous carbon, metal etc. and is provided which is visible with a hole in the center 5, through which the material is transported. pneumatic route with carrier gas as above, for example by ejector method.
Som lämplig bërargas kan nämnas argon eller annan ädelgas, luft, kvävgas, syre etc. Eventuellt kan på. här icke visat sätt gasen tillföras kring ett centralt placerat rör, lämpligen eldfast, genom vilket pulver tillföras, varefter gasen komer i den ringformigs spalten mellan detta rör och elektrodens inre väggar, varvid ejektorpåförande sker. Transporten sker så, att det pulverformiga. mate- rialet erhåller en tillräckligt hög hastighet för att tränga in i den metall- smälta 6 som finnes i ugzen, och som avses raffinerad och/eller färskad, even- tuellt reducerad. Ljusbåge upprätthålles under injiceringsförfarsndet medelst en mellan elektrod och smälta anbragt elektrisk spänning, växelspänning eller likspänning, se vid 7. Man erhåller alltså. samtidigt vämetillförsel som man erhåller injicerirzg i badet (vid 8) och lämpligen bör injiceringen ske med så- dan hastighet att inträngningen i smältan blir minst 5 mm, lämpligen mer än 1 cm, exempelvis 10-30 cm, varvid färsk-ning sker i smältsn av det inträngende pulvret. Eventuellt kan på. i och för sig känt sätt ugien kompletteras med en smrörm för nsmsgenisering av ast benmalaas smältsbaaet (ej visat). Det torde alltså observeras att elektroden 4 ej neddoppas i smältan, utan att den appliceras på sådant avstånd från smältan att en lämpligt utformad ljusbâge 7 erhålles. Samma gäller förhållandet om flera elek-troder utnyttjas. Eventuellt kan vid likström 'bottenelektrod ordnas på i och för sig kämt sätt.Suitable carrier gases are argon or other noble gas, air, nitrogen, oxygen etc. Possibly can on. here the method not shown here is supplied around a central placed pipe, preferably refractory, through which powder is supplied, after which the gas enters the annular gap between this tube and the inner walls of the electrode, whereby ejector application takes place. The transport takes place in such a way that it is powdery. mate- the material obtains a sufficiently high speed to penetrate the metal melt 6 contained in the ugzen, and referred to as refined and / or fresh, even currently reduced. Arc is maintained during the injection procedure by means of an electrical voltage, alternating voltage arranged between electrode and melt or DC voltage, see at 7. Thus, one obtains. at the same time heat supply as man receive injections into the bath (at 8) and should preferably be injected with the speed at which the penetration into the melt becomes at least 5 mm, preferably more than 1 cm, for example 10-30 cm, whereby freshening takes place in the melt of the penetrating the powder. Possibly can on. per se known manner ugien is supplemented with a butter tube for nsmsgenization of ast benmalaas smältsbaaet (not shown). The it should thus be observed that the electrode 4 is not immersed in the melt, but that it applied at such a distance from the melt that a suitably shaped arc 7 obtained. The same applies to the situation if several electrodes are used. Possibly in the case of direct current, the bottom electrode can be arranged in a separate manner.
Under injektionsförloppet är elektroden satt under spänning och ljusbšgen skall alltså brinna samtidigt som injektionen äger rum. avgaser, exempelvis förbrän- ningsgaser ooh/eller utrrvttjad bärargas, avföres på. lämpligt sätt vid 9, exem- pelvis medelst ett gasutsug.During the injection process, the electrode is placed under voltage and the light arc should thus burning at the same time as the injection takes place. exhaust gases, such as combustion gases ooh and / or exhausted carrier gas, are discharged on. suitably at 9, for example pelvis by means of a gas extraction.
Givetvis kan ugnen enligt exemplet kompletteras med övrig-a inblåsningsorgsn vid sidan av elektroden.Of course, the oven according to the example can be supplemented with other blowing means next to the electrode.
Förfaringssättet enligt ovan kan varieras på. mångahanda sätt inom ramen för nedanstående patentkrav.The procedure as above can be varied. many ways within the framework of the following claims.
Claims (3)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7800823A SE431994B (en) | 1978-01-24 | 1978-01-24 | PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL |
| DE19792900864 DE2900864A1 (en) | 1978-01-24 | 1979-01-11 | PROCESS FOR INJECTING POWDERED MATERIAL INTO A METALLURGICAL MELT |
| IT19387/79A IT1110692B (en) | 1978-01-24 | 1979-01-17 | PROCEDURE FOR THE INJECTION OF A POWDERED MATERIAL INTO A MELTED METALLURGIC BATH |
| FR7901377A FR2415148B1 (en) | 1978-01-24 | 1979-01-19 | PROCESS FOR INJECTING MATERIAL INTO A METAL MELT |
| GB7902235A GB2014615B (en) | 1978-01-24 | 1979-01-22 | Injection of powdered material into metallurgical melts |
| JP597579A JPS54110117A (en) | 1978-01-24 | 1979-01-22 | Method of pouring powder material into metallurgical molten material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7800823A SE431994B (en) | 1978-01-24 | 1978-01-24 | PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7800823L SE7800823L (en) | 1979-07-25 |
| SE431994B true SE431994B (en) | 1984-03-12 |
Family
ID=20333743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7800823A SE431994B (en) | 1978-01-24 | 1978-01-24 | PROCEDURAL KIT FOR INJECTING POWDER-MATERIAL IN A METAL SURGICAL MELT AS STALL |
Country Status (6)
| Country | Link |
|---|---|
| JP (1) | JPS54110117A (en) |
| DE (1) | DE2900864A1 (en) |
| FR (1) | FR2415148B1 (en) |
| GB (1) | GB2014615B (en) |
| IT (1) | IT1110692B (en) |
| SE (1) | SE431994B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3629055A1 (en) * | 1986-08-27 | 1988-03-03 | Kloeckner Cra Tech | METHOD FOR INCREASING ENERGY IN ELECTRIC ARC FURNACES |
| AT396942B (en) * | 1991-12-16 | 1993-12-27 | Voest Alpine Ind Anlagen | METHOD FOR PRODUCING METAL MELT, IN PARTICULAR STEEL MELT |
| DE4310779C2 (en) * | 1993-03-26 | 1996-08-14 | Mannesmann Ag | Process and device for the disposal of filter materials |
| WO1995025822A1 (en) * | 1994-03-18 | 1995-09-28 | Sahm P R | Casting materials |
| AT403293B (en) * | 1995-01-16 | 1997-12-29 | Kct Tech Gmbh | METHOD AND INSTALLATION FOR THE PRODUCTION OF ALLOY STEELS |
| AT404841B (en) | 1995-04-10 | 1999-03-25 | Voest Alpine Ind Anlagen | SYSTEM AND METHOD FOR PRODUCING MELTING IRON |
| DE102006029725B4 (en) * | 2006-06-28 | 2008-08-28 | Siemens Ag | Method and device for introducing dusts into a molten metal of a pyrometallurgical plant |
| DE102007048962A1 (en) * | 2007-10-12 | 2009-04-16 | Sms Demag Ag | electric oven |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1186694A (en) * | 1956-12-05 | 1959-08-31 | British Oxygen Co Ltd | Treatment of molten metals and alloys |
| FR1186745A (en) * | 1957-11-26 | 1959-08-31 | British Oxygen Co Ltd | Treatment of molten metals and alloys |
| DE1508256A1 (en) * | 1966-04-30 | 1970-04-30 | Schenck Dr Ing Dr Ing E H Herm | Process for introducing hydrocarbons into ovens with direct electrical heating |
| JPS5051919A (en) * | 1973-09-10 | 1975-05-09 |
-
1978
- 1978-01-24 SE SE7800823A patent/SE431994B/en not_active IP Right Cessation
-
1979
- 1979-01-11 DE DE19792900864 patent/DE2900864A1/en active Granted
- 1979-01-17 IT IT19387/79A patent/IT1110692B/en active
- 1979-01-19 FR FR7901377A patent/FR2415148B1/en not_active Expired
- 1979-01-22 JP JP597579A patent/JPS54110117A/en active Granted
- 1979-01-22 GB GB7902235A patent/GB2014615B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6213410B2 (en) | 1987-03-26 |
| FR2415148A1 (en) | 1979-08-17 |
| DE2900864A1 (en) | 1979-07-26 |
| DE2900864C2 (en) | 1987-08-06 |
| IT1110692B (en) | 1985-12-23 |
| FR2415148B1 (en) | 1985-09-13 |
| GB2014615B (en) | 1982-10-13 |
| GB2014615A (en) | 1979-08-30 |
| SE7800823L (en) | 1979-07-25 |
| JPS54110117A (en) | 1979-08-29 |
| IT7919387A0 (en) | 1979-01-17 |
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| NUG | Patent has lapsed |
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