CN2872785Y - Controller of are furnace with AC-DC conversion - Google Patents
Controller of are furnace with AC-DC conversion Download PDFInfo
- Publication number
- CN2872785Y CN2872785Y CNU2006200809233U CN200620080923U CN2872785Y CN 2872785 Y CN2872785 Y CN 2872785Y CN U2006200809233 U CNU2006200809233 U CN U2006200809233U CN 200620080923 U CN200620080923 U CN 200620080923U CN 2872785 Y CN2872785 Y CN 2872785Y
- Authority
- CN
- China
- Prior art keywords
- arc furnace
- electric arc
- power supply
- positive terminal
- negative terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- 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
Abstract
The utility model relates to an electric control device for AC/DC switching of electric arc furnace used in metallurgy industry, and aims to solve the technical problem in prior art, i.e. in existing electric arc furnace equipped with AC power supply, due to the characteristic of AC power supply, inductance will be generated to hinder current output, thus causing waste of energy low efficiency of electric arc furnace, and degraded smelting quality. Technical solution to the above problem is: through a diverter switch, a three-phase AC power supply is connected with corresponding electrodes via a circuit composed of rectifier and DC distribution switch or directly. The utility model can be used to reconstruct three-phase electric arc furnace into AC/DC switching electric arc furnace to save energy and allow coexistence of AC/DC power supplies.
Description
Technical field: the utility model belongs to the electric control gear that smelting industry uses a kind of arc furnace AC-DC conversion in the arc furnace equipment, particularly is fit to the electric control gear of the eaf renovation of original configuration AC power for a kind of arc furnace AC-DC conversion of interchange, direct current coexistence.
Background technology: the arc furnace of existing configuration AC power is that alternating current output is used.Obviously, because the characteristic of alternating current can produce the output of inductive obstacle electric current, the waste electric energy, arc furnace efficient is low, influences smelting quality.And the arc furnace of existing configuring direct current power supply can not satisfy the performance characteristics that alternating current has.Transform the arc furnace of original configuration AC power the arc furnace of alternating current and dc power supply coexistence as scientifically and rationally, the needs that satisfy various smelting processes are problem demanding prompt solutions in the practice.
Summary of the invention: the purpose of this utility model is exactly the technical scheme that proposes a kind of electric control gear of arc furnace AC-DC conversion, the characteristic of alternating current exists with the solution background technology: owing to can produce the output of inductive obstacle electric current, the waste electric energy, arc furnace efficient is low, influences smelting quality.And the arc furnace of existing configuring direct current power supply can not satisfy the performance characteristics that alternating current has.
Addressing this problem the technical scheme that is adopted is: a kind of electric control gear of arc furnace AC-DC conversion, form by three-phase electrode, it is characterized in that selecting to connect the circuit of forming by rectifier and direct current dispense switch by diverter switch between three-phase alternating-current supply and the counter electrode that is connected, perhaps select and electrode direct-connected.Wherein, the direct current dispense switch comprises positive terminal and negative terminal, and some moving contacts can be connected with positive terminal or negative terminal touching, and moving contact connects the moving contact binding post.Positive terminal is positioned at the centre, and negative terminal is positioned at peripheral position, forms the space that moving contact can be connected with its touching between positive terminal and the negative terminal.
The beneficial effect that the utility model and background technology comparison are had is: according to technique scheme, the arc furnace that has the configuration three-phase alternating-current supply now can be become direct current and alternating current coexistence, realize the output of direct current or alternating current according to the smelting process needs.Solved the inductive obstacle electric current that arc furnace the produced output of existing configuration AC power effectively, the waste electric energy has significantly improved arc furnace efficient, has guaranteed smelting quality.Both can adapt to that needs use alternating current, need to use galvanic smelting process needs again.
Description of drawings: Fig. 1 is an overall schematic of the present utility model.Fig. 2 is the schematic diagram of direct current dispense switch in the utility model.
Embodiment: with reference to figure 1, Fig. 2, a kind of electric control gear of arc furnace AC-DC conversion, form by three-phase electrode 3, it is characterized in that selecting to connect the circuit of forming by rectifier 1 and direct current dispense switch 2 by diverter switch 4 between three-phase alternating-current supply and the counter electrode that is connected, perhaps select and electrode direct-connected; Direct current dispense switch 2 comprises positive terminal 5 and negative terminal 6, and some moving contacts 7 can be connected with positive terminal 5 or negative terminal 6 touchings, and moving contact 7 connects moving contact binding post 8; Positive terminal 5 is positioned at the centre, and negative terminal 6 is positioned at peripheral position, forms the space that moving contact 7 can be connected with its touching between positive terminal 5 and the negative terminal 6.
Claims (3)
1, a kind of electric control gear of arc furnace AC-DC conversion, form by three-phase electrode (3), it is characterized in that between three-phase alternating-current supply and the counter electrode that is connected by diverter switch (4), select to connect the circuit of forming by rectifier (1) and direct current dispense switch (2), or selection and counter electrode are direct-connected.
2, according to the electric control gear of the described a kind of arc furnace AC-DC conversion of claim 1, it is characterized in that direct current dispense switch (2) comprises positive terminal (5) and negative terminal (6), some moving contacts (7) can be connected with positive terminal (5) or negative terminal (6) touching, and moving contact (7) connects moving contact binding post (8).
3, according to claim 1 or 2 described a kind of arc furnace dc power supply dispense switch, it is characterized in that positive terminal (5) is positioned at the centre, negative terminal (6) is positioned at peripheral position, forms the space that moving contact (7) can be connected with its touching between positive terminal (5) and the negative terminal (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200809233U CN2872785Y (en) | 2006-02-09 | 2006-02-09 | Controller of are furnace with AC-DC conversion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200809233U CN2872785Y (en) | 2006-02-09 | 2006-02-09 | Controller of are furnace with AC-DC conversion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2872785Y true CN2872785Y (en) | 2007-02-21 |
Family
ID=37741125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200809233U Expired - Lifetime CN2872785Y (en) | 2006-02-09 | 2006-02-09 | Controller of are furnace with AC-DC conversion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2872785Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363886A (en) * | 2020-04-17 | 2020-07-03 | 中冶京诚工程技术有限公司 | Method and device for controlling operation of electric arc furnace |
| CN111394539A (en) * | 2020-04-17 | 2020-07-10 | 中冶京诚工程技术有限公司 | DC control method and device for three-phase AC electric arc furnace |
| CN111486700A (en) * | 2020-04-17 | 2020-08-04 | 中冶京诚工程技术有限公司 | Method and device for controlling AC arc furnace |
-
2006
- 2006-02-09 CN CNU2006200809233U patent/CN2872785Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111363886A (en) * | 2020-04-17 | 2020-07-03 | 中冶京诚工程技术有限公司 | Method and device for controlling operation of electric arc furnace |
| CN111394539A (en) * | 2020-04-17 | 2020-07-10 | 中冶京诚工程技术有限公司 | DC control method and device for three-phase AC electric arc furnace |
| CN111486700A (en) * | 2020-04-17 | 2020-08-04 | 中冶京诚工程技术有限公司 | Method and device for controlling AC arc furnace |
| CN111363886B (en) * | 2020-04-17 | 2022-02-25 | 中冶京诚工程技术有限公司 | Method and device for controlling operation of electric arc furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070221 |
|
| EXPY | Termination of patent right or utility model |