RU2003725C1 - Method of charging burden for melting ferroalloys in arc furnace - Google Patents
Method of charging burden for melting ferroalloys in arc furnaceInfo
- Publication number
- RU2003725C1 RU2003725C1 SU925063726A SU5063726A RU2003725C1 RU 2003725 C1 RU2003725 C1 RU 2003725C1 SU 925063726 A SU925063726 A SU 925063726A SU 5063726 A SU5063726 A SU 5063726A RU 2003725 C1 RU2003725 C1 RU 2003725C1
- Authority
- RU
- Russia
- Prior art keywords
- slag
- arc furnace
- ferroalloys
- mass
- alloying
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims 3
- 229910001021 Ferroalloy Inorganic materials 0.000 title claims 2
- 238000002844 melting Methods 0.000 title 1
- 230000008018 melting Effects 0.000 title 1
- 239000002893 slag Substances 0.000 claims description 9
- 238000005275 alloying Methods 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 239000002361 compost Substances 0.000 claims 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 14
- 229910052759 nickel Inorganic materials 0.000 description 7
- 229910000863 Ferronickel Inorganic materials 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 239000003760 tallow Substances 0.000 description 1
- 238000009966 trimming Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Description
выражением 1,05expression of 1.05
шлак, попада на мемого защитного шлакового сло , и тем самым защитные функции не выполн ютс .slag falling into the alleged protective slag layer, and thus the protective functions are not performed.
При отношении массы шихты, содержащей легирующий материал, к массе заливаемого шлака более величины,определ емой Сг С,When the ratio of the mass of the mixture containing the alloying material to the mass of the slag being poured is more than the value determined by Cr C,
талл, моментально затвердевает, тер ет свою жидкотекучесть и не образует по всей боковой поверхности шихты, содержащей легирующий материал, защитного сло , что также не предотвращает испарени легирующего элемента.the tallow instantly hardens, loses its fluidity and does not form a protective layer over the entire lateral surface of the charge containing the alloying material, which also does not prevent the alloying element from evaporating.
Пример. При производстве ферроникел используют в качестве материала, содержащего легирующий элемент, легковесную обрезь катодного никел . На подину печи загружали 2,8 т обрези и заливали шлаком от предыдущей плавки массой 1,35 т (величина отношени удельной теплоемко- сти шлака к удельной теплоемкости никел Example. In the production of ferronickel, a lightweight trim of the cathode nickel is used as a material containing an alloying element. 2.8 tons of trimmings were loaded onto the bottom of the furnace and filled with slag from the previous smelting weighing 1.35 tons (the ratio of the specific heat capacity of slag to the specific heat capacity of nickel
;й ; th
20 twenty
ЮYU
15fifteen
равна 2,14). Затем производили завалку 7 т металлолома. В результате получили ферроникель с содержанием никел 27,28%. При этом угар никел составил 4,73%, а коэффициент , характеризующий соотношение масс и удельных теплоемкостей обрези никел , был равен 1. Последующие плавки провели при величине этого коэффициента 0,80, 0,95, 1,05, 1.10. Основные показатели этих плавок приведены в таблице (см.опыты 2,3,5,6). Дл сравнени провели плавку по той же технологии, только без заливки шлака . Обрезь никел была загружена согласно рекомендаци м прототипа {опыт Ns 1). Во всех случа х определ ли величину угара никел .equal to 2.14). Then 7 tons of scrap metal were filled. The result was ferronickel with a nickel content of 27.28%. At the same time, nickel burn-off amounted to 4.73%, and the coefficient characterizing the ratio of mass and specific heat capacity of nickel trim was 1. The subsequent melts were carried out at a value of this coefficient 0.80, 0.95, 1.05, 1.10. The main indicators of these heats are given in the table (see experiments 2,3,5,6). For comparison, smelting was carried out using the same technology, but without slag pouring. Nickel trim was loaded according to the recommendations of the prototype (experiment Ns 1). In all cases, nickel fumes were determined.
Из приведенных данных следует, что использование предлагаемого технического решени снижает yiap легирующего элемента более чем на 20% по сравнению с прототипом.From the above data it follows that the use of the proposed technical solution reduces the yiap of the alloying element by more than 20% compared with the prototype.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU925063726A RU2003725C1 (en) | 1992-09-30 | 1992-09-30 | Method of charging burden for melting ferroalloys in arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU925063726A RU2003725C1 (en) | 1992-09-30 | 1992-09-30 | Method of charging burden for melting ferroalloys in arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2003725C1 true RU2003725C1 (en) | 1993-11-30 |
Family
ID=21614002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU925063726A RU2003725C1 (en) | 1992-09-30 | 1992-09-30 | Method of charging burden for melting ferroalloys in arc furnace |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2003725C1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2238995C2 (en) * | 2002-04-01 | 2004-10-27 | Открытое акционерное общество "Ульбинский металлургический завод" | Method of preparing ferroniobium by out-of furnace reductive smelting |
-
1992
- 1992-09-30 RU SU925063726A patent/RU2003725C1/en active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2238995C2 (en) * | 2002-04-01 | 2004-10-27 | Открытое акционерное общество "Ульбинский металлургический завод" | Method of preparing ferroniobium by out-of furnace reductive smelting |
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