SE416229B - DC SUPPLY LIGHT BAG OVEN - Google Patents
DC SUPPLY LIGHT BAG OVENInfo
- Publication number
- SE416229B SE416229B SE7902178A SE7902178A SE416229B SE 416229 B SE416229 B SE 416229B SE 7902178 A SE7902178 A SE 7902178A SE 7902178 A SE7902178 A SE 7902178A SE 416229 B SE416229 B SE 416229B
- Authority
- SE
- Sweden
- Prior art keywords
- oven
- electrode
- bottom contact
- circumference
- conductors
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 9
- 239000003302 ferromagnetic material Substances 0.000 claims description 5
- 230000005291 magnetic effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 239000013589 supplement Substances 0.000 claims 1
- 239000000463 material Substances 0.000 description 3
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Electric arc furnaces ; Tank furnaces
- F27B3/10—Details, accessories or equipment, e.g. dust-collectors, specially adapted for hearth-type furnaces
- F27B3/12—Working chambers or casings; Supports therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D11/00—Arrangement of elements for electric heating in or on furnaces
- F27D11/08—Heating by electric discharge, e.g. arc discharge
- F27D11/10—Disposition of electrodes
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B7/00—Heating by electric discharge
- H05B7/02—Details
- H05B7/11—Arrangements for conducting current to the electrode terminals
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Discharge Heating (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Description
15 20 25 55 f79u21?s-a oz mantel eller vägg, uppdelad i två partier, ett omfattande en del av om- kretsen, bl a den del, åt vilken tilledarna till bottenkontakten och eventuellt elektroden är dragna, vilken består av ferromagznetiskt mate- rial, samt en del, omfattande resten av Omkretsen, bestående av icke- ferromagxzetiskt material. Härigenom erhålles ett osymmetriskt fält lcring - elektroden, vilket motverkar nvssnämnda fält från tilledarna till botten- kontakten och eventuellt elektroden, och ett resulterande fält erhålles kring elektroden, vilket icke förorsakar den tidigare föreliggande sned- ställningen av ljuebågen. man erhåller på detta eat: en symmetrisk, rem, ned riktad ljusbåge och slipper ifrån det ojämna slitaget och de andra ovan nämnda nackdelarna. 15 20 25 55 f79u21? Sa oz jacket or wall, divided into two portions, comprising a part of the circumference, including the part to which the conductors of the bottom contact and possibly the electrode are drawn, which consists of ferromagnetic material, and a part, comprising the rest of the Circumference, consisting of non-ferro-magnetic material. As a result, an asymmetrical field is obtained around the electrode, which counteracts the aforementioned field from the conductors to the bottom contact and possibly the electrode, and a resulting field is obtained around the electrode, which does not cause the previously present skew of the arc. you get on this eat: a symmetrical, strap, downward-directed arc and avoid the uneven wear and the other above-mentioned disadvantages.
- Uppfinningen är närmare illustrerad i bifogade figurer, av vilka fig 1 visar en ljusbågsugn, sedd från sidan, och fig 2 en sektion tvärs igenom samma ljusbågsugl. Ugnen i föreliggande fall, som är likströmsmatad, har en ljusbågselektrod 1, vilken är symmetriskt dragen genom ugnens valv 6.The invention is further illustrated in the accompanying figures, of which Fig. 1 shows an arc furnace, seen from the side, and Fig. 2 a section across the same arc furnace. The furnace in the present case, which is supplied with direct current, has an arc electrode 1, which is symmetrically drawn through the arches 6 of the furnace.
Elektroden är ansluten till en likströmskällas negativa pol och tilledaren till elektroden visas vid 2. Ugnen är även försedd med en aymmetriskt an- ordnad bottenkontakt 7, och även till den är dragna tilledare 3 från lik- strömskällan, anslutna till dennas pluspol. Antalet tilledare är här två stycken, men givetvis kan även andra antal förekomma.The electrode is connected to the negative pole of a direct current source and the conductor to the electrode is shown at 2. The oven is also equipped with an asymmetrically arranged bottom contact 7, and conductors 3 from the direct current source are also connected to it, connected to its positive pole. The number of conductors is two here, but of course other numbers can also occur.
Ugnslcroppen 8 är försedd med en mantel eller vägg, uppdelad i två partier 4, H5. Det ena partiet 4 placeras _symmetriskt kring det parti av ugzskroppen, som är vänt mot tilledarna 2, 3, och detta parti 4 är utfört i ferromagrle- tiskt material. Detta ferrómagzzetiska material kan omfatta olika stor del av ugnslcroppens omkrets, men företrädesvis bör det omfatta mer 180°, . såsom visas i fig 2.The oven body 8 is provided with a jacket or wall, divided into two portions 4, H5. One portion 4 is placed symmetrically around the portion of the ugz body which faces the conductors 2, 3, and this portion 4 is made of ferromagrlic material. This ferromagnetic material may comprise different sizes of the circumference of the furnace body, but preferably it should comprise more than 180 °. as shown in Fig. 2.
Det andra partiet 5 är utfört i icke ferromagzetiskt material, och såsom» _ lämpliga material kan nämnas ferromagnetisk plåt i partiet 4 och rostfri plåt i partiet 5. Partiet 4 komer att verka kortslutande på fältet lcring elektroden 1 och kommer att medföra en osymmetrisk fördelning av detta fält, vilket i' sin tur kommer att motverka fältet från tilledarna 2, 3, vilket eljest skulle medföra nämnda snedställning av ljusbågen. Med ett rätt av- passat hölje eller parti 4 kan detta upphävande bli fullständigt och en helt verktikal ljusbåge kan erhållas. Den omagnetiska delen 5 omfattar i det visade fallet en fjärdedel av Omkretsen, men i princip kan man säga. att denna del kan omfatta mellan en tiondel och hälften av omloretsen,The second portion 5 is made of non-ferromagetic material, and as suitable materials may be mentioned ferromagnetic plate in the portion 4 and stainless steel in the portion 5. The portion 4 will act short-circuiting the field around the electrode 1 and will result in an asymmetrical distribution of this field, which in turn will counteract the field from the conductors 2, 3, which would otherwise lead to said skew of the arc. With a properly fitted housing or portion 4, this cancellation can be complete and a completely vertical arc can be obtained. The non-magnetic part 5 comprises in the case shown a quarter of the circumference, but in principle it can be said. that this part may comprise between one tenth and half of the omloretsen,
Claims (3)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7902178A SE416229B (en) | 1979-03-12 | 1979-03-12 | DC SUPPLY LIGHT BAG OVEN |
| JP2394580A JPS55122387A (en) | 1979-03-12 | 1980-02-27 | Dc arc furnace |
| DE19803007879 DE3007879A1 (en) | 1979-03-12 | 1980-03-01 | ARC OVEN SUPPLIED WITH DC CURRENT |
| IT67372/80A IT1129418B (en) | 1979-03-12 | 1980-03-10 | DIRECT CURRENT ELECTRIC ARC OVEN |
| GB8008159A GB2046560B (en) | 1979-03-12 | 1980-03-11 | Direct current arc furnace |
| US06/129,261 US4356340A (en) | 1979-03-12 | 1980-03-11 | DC Arc furnace having a shielded arc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE7902178A SE416229B (en) | 1979-03-12 | 1979-03-12 | DC SUPPLY LIGHT BAG OVEN |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE7902178L SE7902178L (en) | 1980-09-13 |
| SE416229B true SE416229B (en) | 1980-12-08 |
Family
ID=20337507
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE7902178A SE416229B (en) | 1979-03-12 | 1979-03-12 | DC SUPPLY LIGHT BAG OVEN |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPS55122387A (en) |
| SE (1) | SE416229B (en) |
-
1979
- 1979-03-12 SE SE7902178A patent/SE416229B/en unknown
-
1980
- 1980-02-27 JP JP2394580A patent/JPS55122387A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| SE7902178L (en) | 1980-09-13 |
| JPS55122387A (en) | 1980-09-20 |
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