CN218586946U - Continuous casting emergency power supply device - Google Patents
Continuous casting emergency power supply device Download PDFInfo
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- CN218586946U CN218586946U CN202222825205.6U CN202222825205U CN218586946U CN 218586946 U CN218586946 U CN 218586946U CN 202222825205 U CN202222825205 U CN 202222825205U CN 218586946 U CN218586946 U CN 218586946U
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- circuit breaker
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Abstract
The utility model relates to a continuous casting emergency power supply device, which comprises a main power supply circuit breaker, a main power supply circuit breaker of a tension leveler, a bale revolving platform power supply circuit breaker, a bale nozzle hydraulic station UPS power supply circuit breaker, a UPS power supply, a first control switch and a second control switch, wherein the main power supply circuit breaker is respectively connected with the main power supply circuit breaker of the tension leveler and the bale revolving platform power supply circuit breaker; the main power supply breaker of the tension leveler is connected with a tension leveler frequency converter through a first control switch; the bale rotary table power circuit breaker is connected with a bale rotary table frequency converter through a second control switch; the UPS is connected with the main power supply breaker; the UPS power supply is respectively connected with a tension leveler UPS power supply circuit breaker, a bale rotary table UPS power supply circuit breaker and a bale water gap hydraulic station UPS power supply circuit breaker. The utility model discloses a UPS power, when the commercial power trouble, for drawing machine of rectifying, bale revolving platform and bale mouth of a river hydraulic pressure station power supply, make its quick recovery operation, shorten the fault handling time.
Description
Technical Field
The utility model belongs to the technical field of the continuous casting equipment, in particular to continuous casting emergency power supply device.
Background
An UPS (Uninterruptible Power Supply), that is, an Uninterruptible Power Supply including an energy storage device, supplies Power to electric devices after a battery pack in a system is inverted when a Power grid fails and a Power failure occurs. Under the condition of normal production, the UPS is in a charging state, and under the condition of sudden power failure, the UPS can be switched into a UPS power supply mode through switching operation, so that the key equipment can be ensured to work for at least 30 minutes.
The continuous casting production system comprises a continuous casting machine, a withdrawal and straightening machine, a bale rotary table and a bale water gap hydraulic station, wherein the withdrawal and straightening machine is used for pulling out a steel billet from the continuous casting machine, the bale rotary table is used for rotating a bale, and the bale water gap hydraulic station is used for opening and closing a bale water gap.
In the prior art, as shown in fig. 1, a main power supply is generally provided by connecting a main power supply circuit breaker 1 with a mains supply, a tension leveler is powered by a main power supply circuit breaker 2, a bale rotary table is powered by a bale rotary table power supply circuit breaker 3, and a bale water gap hydraulic station is powered by a bale water gap hydraulic station power supply circuit breaker 4.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a continuous casting emergency power supply device can make and draw machine of rectifying, bale revolving platform and bale mouth of a river hydraulic pressure station.
In order to achieve the purpose, the technical proposal adopted by the utility model is a continuous casting emergency power supply device, which comprises a main power supply breaker, a main power supply breaker of a tension leveler, a bale rotary table power supply breaker, a bale water gap hydraulic station power supply breaker, a UPS power supply, a first control switch and a second control switch,
the main power supply circuit breaker is electrically connected with the main power supply circuit breaker of the tension leveler and the bale rotary table power supply circuit breaker respectively; the main power supply breaker of the tension leveler is electrically connected with a tension leveler frequency converter through a first control switch; the tension leveler frequency converter is electrically connected with a plurality of motors of the tension leveler; the bale rotary table power circuit breaker is electrically connected with a bale rotary table frequency converter through a second control switch; the bale rotary table frequency converter is electrically connected with a motor of the bale rotary table;
the power supply end of the UPS is electrically connected with the main power supply circuit breaker through the UPS incoming line power supply circuit breaker; the load end of the UPS is respectively connected with a tension leveler UPS power supply circuit breaker, a bale rotary table UPS power supply circuit breaker and a bale water gap hydraulic station UPS power supply circuit breaker; the tension leveler UPS power supply circuit breaker and the bale rotary table UPS power supply circuit breaker are electrically connected with the first control switch and the second control switch respectively; and the UPS power circuit breaker of the bale water gap hydraulic station is electrically connected with the bale water gap hydraulic station.
Preferably, the first control switch comprises a mechanical interlock breaker; the first input end of the mechanical interlocking breaker is electrically connected with a main power supply breaker of the tension leveler, and the second input end of the mechanical interlocking breaker is electrically connected with a UPS (uninterrupted power supply) breaker of the tension leveler; and the output end of the mechanical interlocking breaker is electrically connected with the frequency converter of the withdrawal and straightening machine.
Preferably, the second control switch comprises a change-over switch, a bale rotary table commercial power contactor and a bale rotary table UPS power contactor, and a first input end and a second input end of the change-over switch are electrically connected with the bale rotary table power circuit breaker and the bale rotary table UPS power circuit breaker respectively; a first output end and a second output end of the change-over switch are respectively connected with a bale revolving platform commercial power contactor and a bale revolving platform UPS power supply contactor; the bale rotary table commercial power contactor and the bale rotary table UPS power supply contactor are electrically interlocked.
Preferably, a normally closed contact of the commercial power contactor of the bale rotary table is connected with a coil loop of the UPS power contactor of the bale rotary table; and a normally closed contact of the UPS power supply contactor of the bale rotary table is connected with a coil loop of the commercial power contactor of the bale rotary table.
Preferably, the emergency stop button is further included and is used for cutting off the mains supply control power supply and the UPS control power supply.
Preferably, the ladle nozzle hydraulic station comprises a main hydraulic station and a standby hydraulic station; the main hydraulic station and the standby hydraulic station are electrically connected with the main hydraulic station UPS power circuit breaker and the standby hydraulic station UPS power circuit breaker respectively; and the main hydraulic station UP S power circuit breaker and the standby hydraulic station UPS power circuit breaker are electrically connected with the bale water gap hydraulic station UPS power circuit breaker.
The utility model relates to a continuous casting emergency power supply device compares with prior art and has following advantage:
(1) The UPS power supply can supply power to the tension leveler, the ladle turret and the ladle nozzle hydraulic station when the mains supply fails, so that the problem of long emergency handling time after an emergency power failure accident is solved, the potential safety hazard caused by molten steel leakage due to the fact that a ladle nozzle cannot be closed in time is solved, the problem that the accident ladle molten steel cannot be processed in time is solved, and the problem of baking the casting machine equipment by a high-temperature casting blank is solved;
(2) The mains supply and UPS supply modes of the tension leveler and the bale rotary table are respectively controlled through a mechanical interlocking breaker and an electrical interlocking, so that the situation that the mains supply and the UPS supply are electrified simultaneously is avoided;
(3) Simple design, simple operation, labour saving and time saving.
Drawings
FIG. 1 is a schematic diagram of a prior art circuit;
FIG. 2 is a schematic circuit diagram of the present invention;
FIG. 3 is a schematic diagram of a circuit of a withdrawal and straightening unit;
FIG. 4 is a schematic circuit diagram of a bale turntable;
FIG. 5 is a schematic diagram of commercial power and UPS switching of a large-package turntable;
fig. 6 is a schematic circuit diagram of a hydraulic station of a bale outlet.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
As shown in figure 2, the continuous casting emergency power supply device comprises a main power supply breaker 1, a main power supply breaker 2 of a tension leveler, a bale rotary table power supply breaker 3, a bale water gap hydraulic station UPS power supply breaker 9, a UPS power supply 6, a first control switch and a second control switch,
the main power supply circuit breaker 1 is electrically connected with a main power supply circuit breaker 2 of the tension leveler and a power supply circuit breaker 3 of the bale revolving platform respectively, the main power supply circuit breaker 1 is connected with commercial power, and a main power supply is provided for the emergency power supply device through the main power supply circuit breaker 1; as shown in fig. 3, the main power circuit breaker 2 of the tension leveler is electrically connected with a tension leveler frequency converter 11 through a first control switch; the frequency converter 11 of the withdrawal and straightening machine is electrically connected with a plurality of motors in the withdrawal and straightening machine, and commercial power of the motors 12 and 13 of the withdrawal and straightening machine is supplied with power by the main power circuit breaker 1; as shown in fig. 4, the bale rotary table power circuit breaker 3 is electrically connected with a bale rotary table frequency converter 16 through a second control switch; the bale rotary table frequency converter 16 is electrically connected with a bale rotary table motor 17, and commercial power of the bale rotary table motor 17 is supplied by a main power circuit breaker 1;
as shown in fig. 2-4, the power source end of the UPS power source 6 is electrically connected to the main power breaker 1 through the UPS incoming line power breaker 5; the load end of the UPS power supply 6 is respectively connected with a tension leveler UPS power supply circuit breaker 7, a bale rotary table UPS power supply circuit breaker 8 and a bale water gap hydraulic station UPS power supply circuit breaker 9; the tension leveler UPS power circuit breaker 7 and the bale rotary table UPS power circuit breaker 8 are electrically connected with the first control switch and the second control switch respectively; the UPS power supply circuit breaker 9 of the bale water gap hydraulic station is electrically connected with the bale water gap hydraulic station, when a mains supply is normal, the tension leveler motors 12 and 13 and the bale revolving platform motor 17 are supplied with power by the mains supply, the UPS power supply 6 supplies mains supply to the bale water gap hydraulic station, simultaneously, an internal battery in the UPS power supply 6 is charged, when the mains supply fails and the power is cut off, the UPS power supply 6 continuously supplies 220V alternating current to the tension leveler motors 12 and 13, the bale revolving platform motor 17 and the bale water gap hydraulic station by an inversion conversion method to maintain normal work, and the tension leveler, the bale revolving platform and the bale water gap hydraulic station are supplied with power by the UPS power supply 6, the withdrawal and straightening unit can rapidly draw out accident blanks in the casting machine, so that the baking of high-temperature casting blanks to equipment is avoided, the time for manually processing the accident blanks in the casting machine due to accidents is shortened, the potential safety hazard caused by processing the accident blanks is avoided, the bale rotary table can rapidly rotate to the position above an accident bale, the condition that molten steel which is not poured can be lifted away from the rotary table by a crown block is ensured, the molten steel which is not poured can be timely processed, the normal turnover of a steel ladle is not influenced, the bale water gap hydraulic station can rapidly close a bale water gap, and the condition that the molten steel leaks to a production site and safety accidents occur is avoided.
In the present embodiment, as shown in fig. 3, the first control switch includes a mechanical interlock breaker 10; the first input end of the mechanical interlocking breaker 10 is electrically connected with the main power breaker 2 of the tension leveler, and the second input end is electrically connected with the UPS breaker 7 of the tension leveler; the output end of the mechanical interlocking breaker 10 is electrically connected with the tension leveler frequency converter 11, the power supply mode of the tension leveler is controlled through the mechanical interlocking breaker 10, when a mains supply is normal, the left side of the mechanical interlocking breaker 10 is in a closing state, the right side of the mechanical interlocking breaker 10 is in an opening state, the mains supply is sent to the tension leveler frequency converter 11 through the tension leveler master power circuit breaker 2 and the mechanical interlocking breaker 10, the tension leveler frequency converter 11 drives the tension leveler motors 12 and 13 to work, when the mains supply fails, the left side of the mechanical interlocking breaker 10 is opened, the right side of the mechanical interlocking breaker 10 is closed, as the mechanical interlocking breaker 10 is adopted, the closing state of the left side and the right side cannot occur, the UPS power supply 6 is sent to the tension leveler frequency converter 11 through the tension leveler power circuit breaker 7 and the mechanical interlocking breaker 10, and the tension leveler frequency converter 11 drives the tension leveler motors 12 and 13 to work.
In this embodiment, as shown in fig. 4 to 5, the second control switch includes a change-over switch 19, a bale turntable commercial power contactor 14 and a bale turntable UPS power contactor 15, and a first input end and a second input end of the change-over switch 19 are electrically connected to the bale turntable power circuit breaker 3 and the bale turntable UPS power circuit breaker 8, respectively; a first output end and a second output end of the change-over switch 19 are respectively connected with a bale revolving platform commercial power contactor 14 and a bale revolving platform UPS power supply contactor 15; the bale rotary table mains supply contactor 14 and the bale rotary table UPS power supply contactor 15 are electrically interlocked, and the bale rotary table mains supply contactor 14 and the bale rotary table UPS power supply contactor 15 are prevented from being closed simultaneously through the electrical interlocking; the bale rotary table mains supply contactor 14 and the bale rotary table UPS power supply contactor 15 are electrically connected with the bale rotary table frequency converter 16, the bale rotary table mains supply contactor 14 or the bale rotary table UPS power supply contactor 15 is powered on under the control of the change-over switch 19, the power supply mode of the bale rotary table frequency converter 16 is changed, and therefore the motor of the bale rotary table is changed from mains supply control power supply 20 to UPS control power supply 21.
In this embodiment, the normally closed contact 142 of the commercial power contactor 14 of the bale rotary table is connected with the coil 151 of the UPS power contactor 15 of the bale rotary table in a loop; normally closed contact 152 of big package revolving platform UPS power supply contactor 15 is connected with coil 141 loop of big package revolving platform commercial power contactor 14, when commercial power is normal, commercial power control power 20 of big package revolving platform power supply circuit breaker 3 has electricity, when change-over switch 19 is opened to the commercial power position, coil 141 of big package revolving platform commercial power contactor 14 gets electricity, main contact of big package revolving platform commercial power contactor 14 is closed, normally closed contact 142 of big package revolving platform commercial power contactor 14 serially connected in big package revolving platform UPS power supply contactor coil 151 loop is disconnected, control loop of big package revolving platform UPS power supply contactor 15 is disconnected, main contact disconnection of big package revolving platform UPS power supply contactor 15 is guaranteed, commercial power is sent to big package revolving platform frequency converter 16 through big package revolving platform power supply circuit breaker 3 and big package revolving platform commercial power contactor 14, big package revolving platform frequency converter 16 drives big package revolving platform motor 17 to work, when commercial power fails, change-over switch 19 is opened to the position, coil 151 of big package revolving platform commercial power supply contactor 15 gets electricity, big package revolving platform commercial power supply contactor 15 string of big package revolving platform commercial power supply contactor 152, commercial power supply contactor 15 is disconnected from main contact of big package revolving platform commercial power supply revolving platform 16, it guarantees that big package revolving platform UPS revolving platform 16 is disconnected from big package revolving platform UPS revolving platform 16 that commercial power supply contactor 14 is disconnected, when commercial power supply fault, the big package revolving platform commercial power supply contactor 15 is disconnected from big package revolving platform power supply circuit, it is disconnected from big package revolving platform 16, it guarantees that commercial power supply contactor 15 to work, the big package revolving platform 10 is disconnected from big package revolving platform 10 to the big package revolving platform that the big package revolving platform 10 is connected in the big package revolving platform power supply contactor 15, the big package revolving platform power supply contactor 6.
In this embodiment, the emergency stop button 18 is further included, the emergency stop button 18 is used for cutting off the mains control power supply 20 and the UPS control power supply 21, wherein the mains control power supply 20 and the UPS control power supply 21 are power supplies sent by the bale turntable power circuit breaker 3 and the bale turntable UPS power circuit breaker 8, and when the emergency stop button 18 is pressed, the mains control power supply 20 and the UPS control power supply 21 are cut off at the same time, so that the emergency stop button bale turntable can be stopped as long as the emergency stop button is pressed.
In this embodiment, as shown in fig. 6, the ladle nozzle hydraulic station includes a main hydraulic station 24 and a standby hydraulic station 25; the main hydraulic station 24 and the standby hydraulic station 25 are electrically connected with the main hydraulic station UPS power circuit breaker 22 and the standby hydraulic station UPS power circuit breaker 23 respectively; main hydraulic pressure station UPS power supply circuit breaker 22 and reserve hydraulic pressure station UPS power supply circuit breaker 23 and big package mouth of a river hydraulic pressure station UPS power supply circuit breaker 9 electric connection through setting up reserve hydraulic pressure station 25, prevent main hydraulic pressure station 24 trouble, the big package mouth of a river can't be closed.
The utility model discloses a use method: when the mains supply fails, firstly, the ladle nozzle is closed by using an operating handle of a main hydraulic station 24 of the ladle nozzle, secondly, a change-over switch 19 is switched to a UPS position, a UPS power supply 6 is sent to a ladle turret frequency converter 16 through a ladle turret UPS power supply circuit breaker 8 and a ladle turret UPS power supply contactor 15, the ladle turret frequency converter 16 drives a motor of the ladle turret to work, the ladle is rotated to the position above an accident ladle, the condition that a crown block can lift the molten steel which is not poured off the turret and process the molten steel which is not poured off in time is ensured, and thirdly, the left side of a mechanical interlocking circuit breaker 10 of a plurality of tension and straightening machines are switched on and the right side of the left side of the mechanical interlocking circuit breaker 10 is switched on, the tension and straightening machines are started, and the accident blank is sent out.
Claims (6)
1. A continuous casting emergency power supply device is characterized by comprising a main power supply breaker (1), a main power supply breaker (2) of a tension leveler, a bale rotary table power supply breaker (3), a bale water gap hydraulic station UPS power supply breaker (9), a UPS power supply (6), a first control switch and a second control switch,
the main power supply circuit breaker (1) is electrically connected with a main power supply circuit breaker (2) of the tension leveler and a power supply circuit breaker (3) of the bale rotary table respectively; the main power supply breaker (2) of the tension leveler is electrically connected with a tension leveler frequency converter (11) through a first control switch; the tension leveler frequency converter (11) is electrically connected with a plurality of motors of the tension leveler; the bale rotary table power circuit breaker (3) is electrically connected with a bale rotary table frequency converter (16) through a second control switch; the bale rotary table frequency converter (16) is electrically connected with a motor (17) of the bale rotary table;
the power supply end of the UPS (6) is electrically connected with the main power supply breaker (1) through the UPS incoming line power supply breaker (5); the load end of the UPS (6) is respectively connected with a tension leveler UPS power circuit breaker (7), a bale rotary table UPS power circuit breaker (8) and a bale water gap hydraulic station UPS power circuit breaker (9); the tension leveler UPS power supply circuit breaker (7) and the bale rotary table UPS power supply circuit breaker (8) are electrically connected with the first control switch and the second control switch respectively; and the big ladle water gap hydraulic station UPS power supply circuit breaker (9) is electrically connected with the big ladle water gap hydraulic station.
2. A continuous casting emergency power supply unit according to claim 1, characterized in that said first control switch comprises a mechanical interlock breaker (10); the first input end of the mechanical interlocking breaker (10) is electrically connected with the main power breaker (2) of the tension leveler, and the second input end of the mechanical interlocking breaker is electrically connected with the UPS (uninterrupted power supply) breaker (7) of the tension leveler; the output end of the mechanical interlocking breaker (10) is electrically connected with a tension leveler frequency converter (11).
3. The continuous casting emergency power supply device according to claim 1, wherein the second control switch comprises a transfer switch (19), a bale turntable commercial power contactor (14) and a bale turntable UPS power contactor (15), and a first input end and a second input end of the transfer switch (19) are electrically connected with the bale turntable power circuit breaker (3) and the bale turntable UPS power circuit breaker (8), respectively; a first output end and a second output end of the change-over switch (19) are respectively connected with a bale rotary table commercial power contactor (14) and a bale rotary table UPS power supply contactor (15); the bale rotary table commercial power contactor (14) and the bale rotary table UPS power supply contactor (15) are electrically interlocked.
4. A continuous casting emergency power supply unit according to claim 3, characterized in that the normally closed contact (142) of the turret mains contactor (14) is loop connected to the coil (151) of the turret UPS mains contactor (15); and a normally closed contact (152) of the UPS power contactor (15) of the bale rotary table is connected with a loop of a coil (141) of a commercial power contactor (14) of the bale rotary table.
5. A continuous casting emergency power supply device according to claim 1, further comprising an emergency stop button (18), the emergency stop button (18) being configured to disconnect the mains control power supply (20) and the UPS control power supply (21).
6. A continuous casting emergency power supply unit according to claim 1, characterized in that said ladle nozzle hydraulic station comprises a main hydraulic station (24) and a backup hydraulic station (25); the main hydraulic station (24) and the standby hydraulic station (25) are electrically connected with the main hydraulic station UPS power circuit breaker (22) and the standby hydraulic station UPS power circuit breaker (23) respectively; and the main hydraulic station UPS power circuit breaker (22) and the standby hydraulic station UPS power circuit breaker (23) are electrically connected with the bale water gap hydraulic station UPS power circuit breaker (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222825205.6U CN218586946U (en) | 2022-10-26 | 2022-10-26 | Continuous casting emergency power supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222825205.6U CN218586946U (en) | 2022-10-26 | 2022-10-26 | Continuous casting emergency power supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218586946U true CN218586946U (en) | 2023-03-07 |
Family
ID=85375293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222825205.6U Active CN218586946U (en) | 2022-10-26 | 2022-10-26 | Continuous casting emergency power supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218586946U (en) |
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2022
- 2022-10-26 CN CN202222825205.6U patent/CN218586946U/en active Active
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