CN203534144U - Vacuum consumable electro-arc furnace control system - Google Patents
Vacuum consumable electro-arc furnace control system Download PDFInfo
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- CN203534144U CN203534144U CN201320584370.5U CN201320584370U CN203534144U CN 203534144 U CN203534144 U CN 203534144U CN 201320584370 U CN201320584370 U CN 201320584370U CN 203534144 U CN203534144 U CN 203534144U
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Abstract
The utility model discloses a vacuum consumable electro-arc furnace control system. The system comprises an upper computer, a lower computer, a consumable electrode smelting speed detecting unit, a power detecting unit, an electric-arc current regulating unit and a consumable electrode lifting control unit, wherein an interface network is connected between the upper computer and the lower computer, and the interface network is composed of a communication card and a communication interface in series. The vacuum consumable electro-arc furnace control system is simple in structure, convenient to install and lay and low in input cost, communication between the upper computer and the lower computer is achieved by calling a dynamic link library of a Prodave software package, the transmission speed of data is high, and the accuracy rate is high; real-time chart and flash display can be generated in the smelting process, and a duration database is formed for a user to inquire; meanwhile, smelting process parameters can be automatically optimized by the upper computer according to historical data, an electro-arc furnace can be controlled in a full-automatic mode, and the problems that an existing control system is high in equipment fault rate, large in maintenance amount and unstable in product quality and can be greatly influenced by human factors can be effectively solved.
Description
Technical field
The utility model relates to automatic control technology field, especially relates to a kind of Control system of consumable vacuum arc furnace.
Background technology
Vacuum consumable electrode arc furnace is the key equipment in the rare metal smelting processes such as titanium or titanium alloy, although China has obtained certain achievement in titanium or titanium alloy field of smelting, but its overall product quality is on the low side, capacity is little, energy consumption is high, expect that high-quality product is mainly by the external production equipment of import product even, its cost is high, be subject to restriction large., field apparatus large for volume of transmitted data in vacuum consumable electrode arc furnace fusion process disperses, fusion process is complicated, signal disturbs the features such as strong, the control system structure of application of advanced, the problem that solution equipment exists, improves system control efficiency and control accuracy extremely urgent.
During vacuum consumable arc-melting is controlled, the control of comsumable melt speed and the control of monitor system are two important links, are the keys that improves ingot quality.Existing Control system of consumable vacuum arc furnace is unreasonable because system forms, and is difficult to realize the control object of permanent molten speed, permanent power, has that equipment failure rate is high, maintenance large, unstable product quality, is affected by human factors the problems such as larger.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of Control system of consumable vacuum arc furnace is provided, it is simple in structure, automaticity is high, work can guarantee comsumable melt speed and monitor system constant, effectively the existing control system equipment fault rate of solution is high, maintenance large, unstable product quality, is affected by human factors the problems such as larger.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of Control system of consumable vacuum arc furnace, is characterized in that: comprise host computer, slave computer, consumbuble-electrode melting speed detecting unit, power detecting unit, arc current regulon and consutrode elevating control unit, between described host computer and slave computer, be connected with interface network, described interface network is formed by address card and communication interface serial connection, described consumbuble-electrode melting speed detecting unit comprises the temperature sensor that the temperature on consutrode top is carried out to real-time detection, the hot-fluid on consutrode top is carried out to the heat flow transducer detecting in real time, the filter circuit joining with temperature sensor and heat flow transducer respectively, the A/D converter joining with filter circuit and draw the processor of the solid-liquid interface position forming after the fusing of consutrode bottom according to temperature sensor and the measured signal of heat flow transducer, described processor carries out transfer of data by wireless communication module and host computer, described processor joins with wireless communication module and A/D converter respectively, the reactive power compensation module that described power detecting unit comprises the power signal acquisition module that joins with consutrode, join with power signal acquisition module and the holding circuit of joining and reactive power compensation module is protected with slave computer and reactive power compensation module respectively, described arc current regulon comprises and is serially connected in the thyristor supply of Circuit Fault on Secondary Transformer and is serially connected in successively amplifying circuit and the control circuit between slave computer and thyristor supply, a side joint high voltage source of described transformer, described thyristor supply and consutrode join, the frequency converter that described consutrode elevating control unit comprises and slave computer joins and be serially connected in inverter output terminal and consutrode input between rise fall of electrodes circuit.
Above-mentioned a kind of Control system of consumable vacuum arc furnace, is characterized in that: also comprise the Alarm Unit joining with host computer.
Above-mentioned a kind of Control system of consumable vacuum arc furnace, is characterized in that: described host computer is computer.
Above-mentioned a kind of Control system of consumable vacuum arc furnace, is characterized in that: described slave computer is Siemens S7-200PLC.
Above-mentioned a kind of Control system of consumable vacuum arc furnace, is characterized in that: described processor is dsp processor.
Above-mentioned a kind of Control system of consumable vacuum arc furnace, is characterized in that: described address card is Siemens CP5711 card.
The utility model compared with prior art has the following advantages:
1, simple in structure, to install and lay conveniently, input cost is low.
2, the data transfer rate between host computer and slave computer is fast, and accuracy rate is high.
3, high to monitor system signal and easy, rapid, the intelligent degree of burn-off rate signals collecting.
4, in fusion process, can generate Real time graph and animation and show, and formation lasts database for user's inquiry; Host computer can, according to historical data Automatic Optimal smelting technology parameter, be realized the Automatic Control to electric arc furnaces simultaneously.
In sum, the utility model is simple in structure, installation is laid conveniently, intelligent degree is high, work can guarantee comsumable melt speed and monitor system constant, effectively the existing control system equipment fault rate of solution is high, maintenance large, unstable product quality, is affected by human factors the problems such as larger.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is schematic block circuit diagram of the present utility model.
Description of reference numerals:
1-host computer; 2-slave computer; 3-address card;
4-communication interface; 5-consutrode; 6-temperature sensor;
7-heat flow transducer; 8-filter circuit; 9-A/D converter;
10-processor; 11-wireless communication module; 12-power signal acquisition module;
13-reactive power compensation module; 14-holding circuit; 15-transformer;
16-thyristor supply; 17-amplifying circuit; 18-control circuit;
19-high voltage source; 20-frequency converter; 21-rise fall of electrodes circuit;
22-Alarm Unit.
The specific embodiment
As shown in Figure 1, the utility model comprises host computer 1, slave computer 2, consumbuble-electrode melting speed detecting unit, power detecting unit, arc current regulon and consutrode elevating control unit; Between described host computer 1 and slave computer 2, be connected with interface network, described interface network is formed by address card 3 and communication interface 4 serial connections.Described consumbuble-electrode melting speed detecting unit comprises the temperature sensor 6 that the temperature on consutrode 5 tops is carried out to real-time detection, the hot-fluid on consutrode 5 tops is carried out to the heat flow transducer 7 detecting in real time, the filter circuit 8 joining with temperature sensor 6 and heat flow transducer 7 respectively, the A/D converter 9 joining with filter circuit 8 and draw the processor 10 of the solid-liquid interface positions that form after consutrode 5 bottoms fusings according to temperature sensor 6 and the measured signal of heat flow transducer 7, described processor 10 carries out transfer of data by wireless communication module 11 and host computer 1, described processor 10 joins with wireless communication module 11 and A/D converter 9 respectively.Described power detecting unit comprises the power signal acquisition module 12 that joins with consutrode 5, the reactive power compensation module 13 of joining with power signal acquisition module 12 and the holding circuit 14 of joining with slave computer 2 and reactive power compensation module 13 and reactive power compensation module 13 is protected respectively.Described arc current regulon comprise be serially connected in the thyristor supply 16 of transformer 15 secondary sides and be serially connected in successively slave computer 2 and thyristor supply 16 between amplifying circuit 17 and control circuit 18.A side joint high voltage source 19 of described transformer 15, described thyristor supply 16 is joined with consutrode 5.The frequency converter 20 that described consutrode elevating control unit comprises and slave computer 2 joins and be serially connected in frequency converter 20 outputs and consutrode 5 inputs between rise fall of electrodes circuit 21.
In the present embodiment, also comprise the Alarm Unit 22 joining with host computer 1.
In the present embodiment, in the present embodiment, described host computer 1 is computer.
In the present embodiment, described slave computer 2 is Siemens S7-200PLC.
In the present embodiment, described processor 10 is dsp processor.Described address card 3 is Siemens CP5711 card.
Described processor 10 is according to temperature sensor 6 and the measured signal of heat flow transducer 7 and adopt existing solid-liquid interface position calculation software to draw the solid-liquid interface position forming after consutrode 5 bottom fusings.Wherein, the solid-liquid interface position calculation software adopting is the algorithm that the Enthalpy method of solid liquid interface track algorithm or Beckermann and Viskanta is calculated the interface location of different nondimensional times.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (6)
1. a Control system of consumable vacuum arc furnace, is characterized in that: comprise host computer (1), slave computer (2), consumbuble-electrode melting speed detecting unit, power detecting unit, arc current regulon and consutrode elevating control unit, between described host computer (1) and slave computer (2), be connected with interface network, described interface network is formed by address card (3) and communication interface (4) serial connection, described consumbuble-electrode melting speed detecting unit comprises the temperature sensor (6) that the temperature on consutrode (5) top is carried out to real-time detection, the hot-fluid on consutrode (5) top is carried out to the heat flow transducer (7) detecting in real time, the filter circuit (8) joining with temperature sensor (6) and heat flow transducer (7) respectively, the A/D converter (9) joining with filter circuit (8) and draw the processor (10) of the solid-liquid interface position forming after the fusing of consutrode (5) bottom according to temperature sensor (6) and the measured signal of heat flow transducer (7), described processor (10) carries out transfer of data by wireless communication module (11) and host computer (1), described processor (10) joins with wireless communication module (11) and A/D converter (9) respectively, described power detecting unit comprises the power signal acquisition module (12) that joins with consutrode (5), the reactive power compensation module (13) of joining with power signal acquisition module (12) and the holding circuit (14) of joining with slave computer (2) and reactive power compensation module (13) and reactive power compensation module (13) is protected respectively, described arc current regulon comprise be serially connected in the thyristor supply (16) of transformer (15) secondary side and be serially connected in successively slave computer (2) and thyristor supply (16) between amplifying circuit (17) and control circuit (18), a side joint high voltage source (19) of described transformer (15), described thyristor supply (16) is joined with consutrode (5), the frequency converter (20) that described consutrode elevating control unit comprises and slave computer (2) joins and be serially connected in frequency converter (20) output and consutrode (5) input between rise fall of electrodes circuit (21).
2. according to a kind of Control system of consumable vacuum arc furnace claimed in claim 1, it is characterized in that: also comprise the Alarm Unit (22) joining with host computer (1).
3. according to a kind of Control system of consumable vacuum arc furnace described in claim 1 or 2, it is characterized in that: described host computer (1) is computer.
4. according to a kind of Control system of consumable vacuum arc furnace described in claim 1 or 2, it is characterized in that: described slave computer (2) is Siemens S7-200PLC.
5. according to a kind of Control system of consumable vacuum arc furnace described in claim 1 or 2, it is characterized in that: described processor (10) is dsp processor.
6. according to a kind of Control system of consumable vacuum arc furnace described in claim 1 or 2, it is characterized in that: described address card (3) is Siemens CP5711 card.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584370.5U CN203534144U (en) | 2013-09-20 | 2013-09-20 | Vacuum consumable electro-arc furnace control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320584370.5U CN203534144U (en) | 2013-09-20 | 2013-09-20 | Vacuum consumable electro-arc furnace control system |
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| Publication Number | Publication Date |
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| CN203534144U true CN203534144U (en) | 2014-04-09 |
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| CN201320584370.5U Expired - Fee Related CN203534144U (en) | 2013-09-20 | 2013-09-20 | Vacuum consumable electro-arc furnace control system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995515A (en) * | 2014-05-27 | 2014-08-20 | 东北大学 | Method for detecting operation faults of electro-fused magnesia furnace based on public subspace separation |
| CN105716416A (en) * | 2014-12-03 | 2016-06-29 | 冯志权 | Variable-frequency electric arc furnace |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
| CN111880401A (en) * | 2020-06-17 | 2020-11-03 | 上海鑫蓝海自动化科技有限公司 | Control system of vacuum consumable arc remelting furnace |
-
2013
- 2013-09-20 CN CN201320584370.5U patent/CN203534144U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995515A (en) * | 2014-05-27 | 2014-08-20 | 东北大学 | Method for detecting operation faults of electro-fused magnesia furnace based on public subspace separation |
| CN103995515B (en) * | 2014-05-27 | 2016-08-17 | 东北大学 | A kind of electric melting magnesium furnace operation troubles detection method separated based on public subspace |
| CN105716416A (en) * | 2014-12-03 | 2016-06-29 | 冯志权 | Variable-frequency electric arc furnace |
| CN105716416B (en) * | 2014-12-03 | 2018-09-18 | 冯志权 | A kind of frequency conversion type electric arc furnaces |
| CN107703977A (en) * | 2017-09-26 | 2018-02-16 | 东北大学秦皇岛分校 | The control method of electrometallurgy furnace control system and electrometallurgy stove electrode |
| CN111880401A (en) * | 2020-06-17 | 2020-11-03 | 上海鑫蓝海自动化科技有限公司 | Control system of vacuum consumable arc remelting furnace |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140409 Termination date: 20140920 |
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| EXPY | Termination of patent right or utility model |