CN202384772U - Mine hot furnace energy-saving control device - Google Patents
Mine hot furnace energy-saving control device Download PDFInfo
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- CN202384772U CN202384772U CN 201220016127 CN201220016127U CN202384772U CN 202384772 U CN202384772 U CN 202384772U CN 201220016127 CN201220016127 CN 201220016127 CN 201220016127 U CN201220016127 U CN 201220016127U CN 202384772 U CN202384772 U CN 202384772U
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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Abstract
The utility model relates to a mine hot furnace energy-saving control device, and relates to a mine hot furnace. The mine hot furnace energy-saving control device is characterized in that a power supply is respectively connected with one end of a voltage transformer (PT1), one end of a current limiting reactor (L) and one end of a breaker (QF2) through a breaker (QF1), and the other end of the current limiting reactor (L) is connected with an initial end of a pressure regulator (SCR); the tail end of the pressure regulator (SCR) is respectively connected with the other end of the breaker (QF2) and the other end of a current transformer(CT), and the current transformer(CT) is respectively connected with a trigger control unit, one end of a voltage transformer (PT2) and a tap of a transformer (TK); the other end of the voltage transformer (PT2) is connected with the trigger control unit, and the trigger control unit is connected with a pressure regulator trigger circuit (TSC); and the pressure regulator trigger circuit (TSC) is respectively connected with an auxiliary side of the transformer (TK) and the mine hot furnace (9). The mine hot furnace energy-saving control device can reduce the influence of an electric system when the hot furnace is operated, and can effectively improve production efficiency and system power factor.
Description
Technical field
The utility model relates to the hot stove in a kind of ore deposit, is specifically related to the hot stove energy-saving control device in a kind of ore deposit.
Background technology
[The hot stove in ore deposit is to lean on the electric arc that reaches between electrode and furnace charge between electrode to change electric energy into heat energy in order to melt raw-material a kind of process units; Can and melt raw material by the direct effect heating of radiation and electric arc, smelt a kind of smelting process of the products such as steel, alloy, calcium carbide, yellow phosphorus of various compositions.With the hot stove heating in ore deposit, the heat efficiency is high, floor space is little, easy to operate, so the mine heat furnace smelting development is very fast, because of the single-machine capacity of the hot stove in ore deposit is very big, has just brought a lot of problems.Wherein topmost problem, the one, to the influence of electric power system, the 2nd, thus self accurate control problem reduces the product specific loss.
Summary of the invention
The purpose of the utility model provides the hot stove energy-saving control device in a kind of ore deposit, and it can reduce the hot furnaceman in ore deposit influence to electric power system when doing, and can effectively improve the production efficiency of the hot stove in ore deposit, improves the system power factor.
In order to solve the existing problem of background technology; The utility model is taked following technical scheme: it comprises voltage regulator SCR, transformer TK, voltage regulator circuits for triggering TSC, current limiting reactor L, circuit breaker Q F1-circuit breaker Q F2, voltage transformer pt 1-voltage transformer pt 2, current transformer CT and trigger control unit; Power supply links to each other with voltage transformer pt 1 one ends, current limiting reactor L one end and circuit breaker Q F2 one end respectively through circuit breaker Q F1; The current limiting reactor L other end links to each other with the top of voltage regulator SCR; The end of voltage regulator SCR links to each other with circuit breaker Q F2 other end summation current transformer CT respectively; Current transformer CT links to each other with the tap of trigger control unit, voltage transformer pt 2 one ends, transformer TK respectively; Voltage transformer pt 2 other ends link to each other with trigger control unit, and trigger control unit links to each other with voltage regulator circuits for triggering TSC, and voltage regulator circuits for triggering TSC links to each other with the hot stove 9 of transformer TK secondary and ore deposit respectively.
Described trigger control unit comprises control unit 1, current transducer 2, voltage transmitter 3, triggers constant-current source 4 and trigger element 5; Control unit 1 links to each other with the trigger element 5 of voltage regulator SCR through triggering constant-current source 4; And control unit 1 links to each other with voltage regulator circuits for triggering TSC through control signal 8; The voltage signal 5 of voltage transformer pt 1, voltage transformer pt 2 all links to each other with control unit 1 through voltage transmitter 3, and the current signal 7 of current transformer CT links to each other with control unit 1 through current transducer 2.
Described voltage regulator SCR adopts a plurality of just antiparallel thyristors to be in series.
The secondary of described transformer TK is provided with reactive power automatic compensation device 6.
The utility model utilization thyristor serial connection technology; Overcome high voltage and be difficult to control that the thyristor series connection is high-order triggers and the thyristor of sound attitude is all pressed equal flow problem; The AC voltage adjusting circuit that constitutes the thyristor series connection is applied to power control circuit, has proposed a new scheme that the thyristor series connection triggers, current-sharing is all pressed and has been applied in the middle of the hot stove voltage-regulation control in ore deposit.Open the AC voltage adjusting circuit of thyristor series connection formation and can realize constant current, constant voltage, the control of permanent power, can lighten the load greatly impact, voltage, current fluctuation reduce the harmful effect of the hot stove in ore deposit to electrical network; Reduce lead rupture, reduce consuming; Because closed-loop control overvoltage, overcurrent number of times significantly reduce, can significantly improve circuit breaker useful life; Power adjustments realizes with the phase control mode, and is precisely quick; The production efficiency of the hot stove in ore deposit is greatly improved, reduce unit consumption of product, save electric energy, and through the accurate temperature control of control algolithm, the lifting device power factor significantly of the Collaborative Control through system helps producing high-quality product simultaneously.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
With reference to Fig. 1; This embodiment is taked following technical scheme: it comprises voltage regulator SCR, transformer TK, voltage regulator circuits for triggering TSC, current limiting reactor L, circuit breaker Q F1-circuit breaker Q F2, voltage transformer pt 1-voltage transformer pt 2, current transformer CT and trigger control unit; Power supply links to each other with voltage transformer pt 1 one ends, current limiting reactor L one end and circuit breaker Q F2 one end respectively through circuit breaker Q F1; The current limiting reactor L other end links to each other with the top of voltage regulator SCR; The end of voltage regulator SCR links to each other with circuit breaker Q F2 other end summation current transformer CT respectively; Current transformer CT links to each other with the tap of trigger control unit, voltage transformer pt 2 one ends, transformer TK respectively; Voltage transformer pt 2 other ends link to each other with trigger control unit, and trigger control unit links to each other with voltage regulator circuits for triggering TSC, and voltage regulator circuits for triggering TSC links to each other with the hot stove 9 of transformer TK secondary and ore deposit respectively.
Described trigger control unit comprises control unit 1, current transducer 2, voltage transmitter 3, triggers constant-current source 4 and trigger element 5; Control unit 1 links to each other with the trigger element 5 of voltage regulator SCR through triggering constant-current source 4; And control unit 1 links to each other with voltage regulator circuits for triggering TSC through control signal 8; The voltage signal 5 of voltage transformer pt 1, voltage transformer pt 2 all links to each other with control unit 1 through voltage transmitter 3, and the current signal 7 of current transformer CT links to each other with control unit 1 through current transducer 2.
Described voltage regulator SCR adopts a plurality of just antiparallel thyristors to be in series.
The secondary of described transformer TK is provided with reactive power automatic compensation device 6.
The voltage regulator SCR top of this embodiment joins through current limiting reactor L and circuit breaker Q F1 and power supply, and end connects the respective taps of ore heat furnace transformer TK; Main control unit 2 is realized by DSP or ARM system with signal conditioning circuit; Its signal input part meets current transformer CT, voltage transformer pt 1, PT2 through the A/D conversion; Constant-current source 5 is sent out in the output contact; Trigger constant-current source 5 outputs and pass the triggering magnet ring through the high pressure Electricity Federation, the output of magnet ring secondary is handled through simple rectification and is connect the voltage regulator trigger end; Voltage regulator is that thyristor plays on-off action in circuit, in each half cycle intra of power supply once: can change the voltage in the load (the hot stove in ore deposit) from small to large through regulating the ON time of thyristor from small to large; The output current signal that DSP or ARM system constitute CON, gather the input voltage that come by voltage transformer pt 1 and PT2 and output voltage at any time, come by current transformer CT; Utilization Different control method (for example fuzzy control, PID control) realizes closed-loop control; Regulate the trigger angle of thyristor SCR, thus realize to the hot stove in ore deposit electric current, voltage, V/I when power control.
This embodiment utilization thyristor serial connection technology; Overcome high voltage and be difficult to control that the thyristor series connection is high-order triggers and the thyristor of sound attitude is all pressed equal flow problem; The AC voltage adjusting circuit that constitutes the thyristor series connection is applied to power control circuit, has proposed a new scheme that the thyristor series connection triggers, current-sharing is all pressed and has been applied in the middle of the hot stove voltage-regulation control in ore deposit.Open the AC voltage adjusting circuit of thyristor series connection formation and can realize constant current, constant voltage, the control of permanent power, can lighten the load greatly impact, voltage, current fluctuation reduce the harmful effect of the hot stove in ore deposit to electrical network; Reduce lead rupture, reduce consuming; Because closed-loop control overvoltage, overcurrent number of times significantly reduce, can significantly improve circuit breaker useful life; Power adjustments realizes with the phase control mode, and is precisely quick; The production efficiency of the hot stove in ore deposit is greatly improved, reduce unit consumption of product, save electric energy, and through the accurate temperature control of control algolithm, the lifting device power factor significantly of the Collaborative Control through system helps producing high-quality product simultaneously.
Claims (4)
1. the hot stove energy-saving control device in ore deposit; It is characterized in that it comprises voltage regulator (SCR), transformer (TK), voltage regulator circuits for triggering (TSC), current limiting reactor (L), circuit breaker (QF1)-circuit breaker (QF2), voltage transformer (PT1)-voltage transformer (PT2), current transformer (CT) and trigger control unit; Power supply links to each other with voltage transformer (PT1) end, current limiting reactor (L) end and circuit breaker (QF2) end respectively through circuit breaker (QF1); Current limiting reactor (L) other end links to each other with the top of voltage regulator (SCR); The end of voltage regulator (SCR) links to each other with circuit breaker (QF2) other end summation current transformer (CT) respectively; Current transformer (CT) links to each other with a tap of trigger control unit, voltage transformer (PT2) end, transformer (TK) respectively; Voltage transformer (PT2) other end links to each other with trigger control unit, and trigger control unit links to each other with voltage regulator circuits for triggering (TSC), and voltage regulator circuits for triggering (TSC) link to each other with the hot stove of transformer (TK) secondary and ore deposit (9) respectively.
2. the hot stove energy-saving control device in ore deposit according to claim 1; It is characterized in that described trigger control unit comprises control unit (1), current transducer (2), voltage transmitter (3), triggers constant-current source (4) and trigger element (5); Control unit (1) links to each other with the trigger element (5) of voltage regulator (SCR) through triggering constant-current source (4); And control unit (1) links to each other with voltage regulator circuits for triggering (TSC) through control signal (8); The voltage signal (5) of voltage transformer (PT1), voltage transformer (PT2) all links to each other with control unit (1) through voltage transmitter (3), and the current signal (7) of current transformer (CT) links to each other with control unit (1) through current transducer (2).
3. the hot stove energy-saving control device in ore deposit according to claim 1 is characterized in that described voltage regulator ((SCR)) adopts a plurality of just antiparallel thyristors to be in series.
4. the hot stove energy-saving control device in ore deposit according to claim 1 is characterized in that described transformer (TK) secondary is provided with reactive power automatic compensation device (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220016127 CN202384772U (en) | 2012-01-14 | 2012-01-14 | Mine hot furnace energy-saving control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220016127 CN202384772U (en) | 2012-01-14 | 2012-01-14 | Mine hot furnace energy-saving control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202384772U true CN202384772U (en) | 2012-08-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220016127 Expired - Fee Related CN202384772U (en) | 2012-01-14 | 2012-01-14 | Mine hot furnace energy-saving control device |
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| CN (1) | CN202384772U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777535A (en) * | 2014-01-23 | 2014-05-07 | 无锡北科自动化科技有限公司 | Submerged arc furnace load intelligent energy-saving control system |
| CN105259439A (en) * | 2015-10-19 | 2016-01-20 | 湖北华宏电力科技有限公司 | Submerged arc furnace molten pool operation electrical parameter on-line detection device |
| CN113051708A (en) * | 2021-02-03 | 2021-06-29 | 安徽大学 | Method for establishing electric kiln electric energy quality characteristic analysis model based on energy balance |
-
2012
- 2012-01-14 CN CN 201220016127 patent/CN202384772U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103777535A (en) * | 2014-01-23 | 2014-05-07 | 无锡北科自动化科技有限公司 | Submerged arc furnace load intelligent energy-saving control system |
| CN103777535B (en) * | 2014-01-23 | 2016-12-07 | 无锡北科自动化科技有限公司 | Mineral hot furnace load Intellectualized energy-saving control system |
| CN105259439A (en) * | 2015-10-19 | 2016-01-20 | 湖北华宏电力科技有限公司 | Submerged arc furnace molten pool operation electrical parameter on-line detection device |
| CN113051708A (en) * | 2021-02-03 | 2021-06-29 | 安徽大学 | Method for establishing electric kiln electric energy quality characteristic analysis model based on energy balance |
| CN113051708B (en) * | 2021-02-03 | 2022-10-25 | 安徽大学 | Method for establishing electric kiln electric energy quality characteristic analysis model based on energy balance |
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| Date | Code | Title | Description |
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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: 20120815 Termination date: 20150114 |
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| EXPY | Termination of patent right or utility model |