SU851797A1 - Method of melting in electrode electric furnace - Google Patents
Method of melting in electrode electric furnace Download PDFInfo
- Publication number
- SU851797A1 SU851797A1 SU792799042A SU2799042A SU851797A1 SU 851797 A1 SU851797 A1 SU 851797A1 SU 792799042 A SU792799042 A SU 792799042A SU 2799042 A SU2799042 A SU 2799042A SU 851797 A1 SU851797 A1 SU 851797A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- furnace
- load
- transformer
- melting
- electrodes
- Prior art date
Links
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
- Y02P10/25—Process efficiency
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- Vertical, Hearth, Or Arc Furnaces (AREA)
- Furnace Details (AREA)
Description
tt
Изобретение относитс к электротермии и может быть использовано на руднотермических печах по производству фосфора, карбида кальци , ферросплавов и других продуктов, особенно на электропечных установках, осна ценных мощными трансформаторными агрегатами с большим диапазоном регулировани напр жени под нагрузкой .The invention relates to electrothermal and can be used in ore-smelting furnaces for the production of phosphorus, calcium carbide, ferroalloys and other products, especially in electric furnace installations, equipped with powerful transformer units with a large range of voltage regulation under load.
Технологическим регламентом предписываетс отключение руднотермической печи производить на низших ступен х напр жени трансформатс а при соответствующих плотност х тока, определ емых графиком разогрева электродов при простое (Ijl.The technological regulation requires that the ore-smelting furnace be switched off at the lower voltage levels of the transformer at appropriate current densities determined by the heating curve of the electrodes when idle (Ijl.
Однако такой способ отключени печной установки уменьшает надежность эксплуатации электрооборудовани , так как переключающее устройство рассчитано на 40-80 тыс. операций переключени под нагрузкой без смены контактной системы. Особенно это относитс к печам производства желтого фосфора, Оборудованных мощными трансформаторными агрегатами с переключакицими устройствами с большим количество ступеней регулиЕЮвани напр жени , достигакщим 43, и имею-.However, this method of shutting down the furnace installation reduces the reliability of electrical equipment operation, since the switching device is designed for 40-80 thousand switching operations under load without changing the contact system. This is especially true for yellow phosphorus-producing furnaces, Equipped with powerful transformer units with switching devices with a large number of voltage control stages, reaching 43, and I have.
щими по технологическим причинам значительное число циклов включение-отключение , привод щих к сокращению межремонтного пробега контактной системы переключакицего устройства и внеплановым просто м техноло- гических линий.For technological reasons, a significant number of on-off cycles, leading to a reduction in the overhaul mileage of the contact system of the switching device and unscheduled simple technological lines.
Наиболее близким по технической сущности к предлагаемому вл етс The closest in technical essence to the proposed is
to способ плавки в электродной электропечи , содержащей печной трансформатор с устройством переключени ступеней напр жени под нагрузкой и высоковольтный выключатель, при кото15 ром включают печь, увеличивают нагрузку до рабочей величины и поддерживают ее в период плавки путем перемещени электродов, перед отключением печи снижают нагрузку путем The method of melting in an electrode electric furnace containing a furnace transformer with a voltage step switch under load and a high-voltage switch, at which the furnace is turned on, increases the load to the working value and maintains it during the period of melting by moving the electrodes, before turning off the furnace, reduce the load by
20 подъема электродов, отключают печь высоковольтным выключателем на ступени трансформатора, соответствующей рабочей нагрузке, эатем на отключенной печи переключают трансформа25 тор на низшую ступень напр жени и повторное включение провод т на этой ступени ГзЦ.20 lifting electrodes, turn off the furnace with a high-voltage switch at the transformer stage corresponding to the operating load, then the transformer is switched to the lower voltage level on the disconnected furnace and the restarting is performed at this stage HzC.
Недостатком этого способа, обычно осуществл емого на,дуговых элект30 ропечах, вл етс снижение нагрузкиThe disadvantage of this method, usually carried out on electric arc furnaces, is to reduce the load
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792799042A SU851797A1 (en) | 1979-07-18 | 1979-07-18 | Method of melting in electrode electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792799042A SU851797A1 (en) | 1979-07-18 | 1979-07-18 | Method of melting in electrode electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU851797A1 true SU851797A1 (en) | 1981-07-30 |
Family
ID=20841817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792799042A SU851797A1 (en) | 1979-07-18 | 1979-07-18 | Method of melting in electrode electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU851797A1 (en) |
-
1979
- 1979-07-18 SU SU792799042A patent/SU851797A1/en active
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