SU556181A1 - Method for automatic control of a six-electrode ore-smelting electric furnace - Google Patents
Method for automatic control of a six-electrode ore-smelting electric furnaceInfo
- Publication number
- SU556181A1 SU556181A1 SU2140913A SU2140913A SU556181A1 SU 556181 A1 SU556181 A1 SU 556181A1 SU 2140913 A SU2140913 A SU 2140913A SU 2140913 A SU2140913 A SU 2140913A SU 556181 A1 SU556181 A1 SU 556181A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- electrode
- automatic control
- active power
- electric furnace
- 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
- Y02P10/20—Recycling
-
- 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
Landscapes
- Discharge Heating (AREA)
Description
НИИ, что приводит к повышению технико-экономических показателей процессов плавки.Research Institute, which leads to an increase in technical and economic indicators of smelting processes.
Эта цель достигаетс за счет измерени активной мощности каждого электрода и отработки отклонени от заданного значени мощности каждого электрода перемещением второго электрода, подключенного к тому же трансформатору. Дл обеспечени работы нечи на восход 1цей ветви электрической характеристики при высоких электрическом КПД и coscp предусмотрено ограничение тока электродов по верхнему пределу. При отработке отклонени активной мощности одного электрода перемещением вниз второго и достижени тока электродов предельного верхнего значени отработка отклонени осуществл етс переключением печного трансформатора на более высокую ступень напр жени . Аналогично вводитс ограничение тока электродов но нижнему пределу дл работы печн с высоким тепловым КПД. В последнем случае, нри достижении тока электродов предельного нижнего значени , отработка отклонени активной мощности осуществл етс переключением трансформатора на более низкую ступень напр жени .This goal is achieved by measuring the active power of each electrode and testing the deviation from the target power of each electrode by moving the second electrode connected to the same transformer. In order to ensure the operation of the non-rise, the 1 st branch of the electrical characteristic with high electrical efficiency and coscp provides for limiting the current of the electrodes on the upper limit. When practicing the deviation of the active power of one electrode by moving down the second one and achieving the electrode current the upper limit value, the deviation is tested by switching the furnace transformer to a higher voltage level. Similarly, the current limit of the electrodes is introduced but the lower limit for the operation of furnaces with high thermal efficiency. In the latter case, when the current of the electrodes reaches the lower limit value, the deviation of the active power is performed by switching the transformer to a lower voltage level.
При изменении сопротивлени иод какимлибо электродом, а следовательно, и тока измен етс активна мощность под обоими электродами , подключенными к соответствующему печному трансформатору. Однако активна мощность под вторым электродом измен етс сильнее, чем иод электродом, где произошло изменение сопротивлени , при этом зависимость активной мощности второго электрода от изменени сопротивлени под первым не имеет экстремума в отличии от первого.When the resistance of an iodine changes by any electrode, and consequently, of the current, the active power under both electrodes connected to the corresponding furnace transformer changes. However, the active power under the second electrode varies more strongly than the iodine electrode, where the resistance changes, while the active power of the second electrode depends on the resistance change under the first one and has no extremum in contrast to the first one.
Таким образом, изменение сопротивлени под одним электродом сильнее измен ет активную мощность, под другим электродом данного трансформатора, а это значит, что отклонение активной мощности от заданного значени под каким-либо электродом необходи5 МО отрабатывать перемещением второго электрода данного трансформатора. При соблюдении этого правила отработка возмущений ио активной мощности шестиэлектродной руднотермической печи будет происходить приThus, the change in resistance under one electrode changes the active power more strongly, under another electrode of this transformer, and this means that the deviation of the active power from a predetermined value under some electrode must be done by moving the second electrode of this transformer. With the observance of this rule, the testing of disturbances and active power of a six-electrode ore-smelting furnace will occur at
0 минимальном количестве перемещений электродов .0 the minimum number of movements of the electrodes.
На чертеже показана схема реализации способа регулировани активной мощности только дл одного электрода.The drawing shows the implementation of the method of regulating the active power for only one electrode.
5 Схема состоит из блока 1 измерени активной мощности, автоматического регул тора 2, печного трансформатора 3, трансформатора 4 тока, первого 5 и второго 6 электродов одной фазы.5 The circuit consists of an active power measurement unit 1, an automatic regulator 2, a furnace transformer 3, a current transformer 4, the first 5 and second 6 electrodes of one phase.
0 Сигнал, пропорциональный активной мощности Pol электрода 5, иоступает иа автоматический регул тор 2, с выхода которого иостуиает сигнал, рав.ный /(А/:,2, на перемещение второго электрода 6.0 A signal is proportional to the active power Pol of electrode 5, and comes with an automatic controller 2, from the output of which the signal equal to / (A / :, 2, signals the movement of the second electrode 6.
5 five
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2140913A SU556181A1 (en) | 1975-06-05 | 1975-06-05 | Method for automatic control of a six-electrode ore-smelting electric furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2140913A SU556181A1 (en) | 1975-06-05 | 1975-06-05 | Method for automatic control of a six-electrode ore-smelting electric furnace |
Publications (1)
Publication Number | Publication Date |
---|---|
SU556181A1 true SU556181A1 (en) | 1977-04-30 |
Family
ID=20621606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2140913A SU556181A1 (en) | 1975-06-05 | 1975-06-05 | Method for automatic control of a six-electrode ore-smelting electric furnace |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU556181A1 (en) |
-
1975
- 1975-06-05 SU SU2140913A patent/SU556181A1/en active
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