CN108555262A - A kind of tundish method for automatic controlling liquid level and system - Google Patents
A kind of tundish method for automatic controlling liquid level and system Download PDFInfo
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- CN108555262A CN108555262A CN201810534889.XA CN201810534889A CN108555262A CN 108555262 A CN108555262 A CN 108555262A CN 201810534889 A CN201810534889 A CN 201810534889A CN 108555262 A CN108555262 A CN 108555262A
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- Prior art keywords
- tundish
- molten steel
- control
- weight
- crystallizer
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/18—Controlling or regulating processes or operations for pouring
- B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
- B22D11/183—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by measuring molten metal weight
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a kind of tundish method for automatic controlling liquid level and systems, including tundish liquid-level auto-control device, the automatic control device includes PLC controller, display, middle control machine, control box, great Bao, tundish, long water pipe, big packet slide plate, crystallizer and strand, big packet slide plate is provided on the liquid outlet of the bottoms great Bao, the bottoms great Bao liquid outlet is connected by long water pipe with tundish, the tundish bottom is connected with crystallizer, and the crystallizer is internally provided with strand；The tundish is internally provided with weight sensor.The present invention carries out the speed of notice control injection molten steel by PLC controller and middle control machine by weight sensor, to control within the scope of the preset weight that the molten steel content in the tundish is worth on the basis of the predetermined weight value；Molten Steel Cleanliness is improved, and then improves recovery rate of iron, stability contorting tundish weight is gone back, reduces influence of the level fluctuation to slab quality of tundish.
Description
Technical field
The present invention relates to a kind of tundish method for automatic controlling liquid level and systems.
Background technology
In the production process of continuous casting, with the decline of casting later stage liquid steel level, due to by deflecting force of the earth (Coriolis
Power) effect, steel-slag interface can generate conflux vortex in ladle, vortex be easy to cause slag, when molten steel height is less than vortex
When critical altitude, vortex is even involved in gas, and recessed whirlpool is more and more obvious, and swirl velocity is also increasing, until the perforation mouth of a river, this
When liquid level be known as penetrate through height, lead to a large amount of clinker entry nozzle, it is very unfavorable to the production of clean steel.Ladle revolves
Scrollwork slag brings larger harm：(1) opourability for deteriorating molten steel, makes nozzle blocking, casting that cannot be normally carried out；(2) it causes
Alloying element oxidation in molten steel, and generate the degree of purity of field trash influence molten steel；(3) aluminium content is dissolved in strand to decline, in
Between wrap and long nozzle Eroded；(4) big cinder inclusion, which enters tundish, causes slag in tundish to gather, and is caused not to casting process
Good influence.
In conventional produce, Lower proterozoic group device is installed usually near the ladle bottom mouth of a river, when in entrance molten steel stream
When the quantity of slag accounts for certain proportion, by closing slide gate nozzle in advance to reduce the lower quantity of slag, but residual in ladle can be made excessive
Molten steel, and then result in reduction recovery rate of iron.
Invention content
To solve the above problems, the present invention provides a kind of tundish method for automatic controlling liquid level and systems.
To achieve the above object, the technical solution that the present invention takes is：
A kind of tundish method for automatic controlling liquid level and system, operation are specific as follows：Including tundish liquid automatic control
Device, the automatic control device includes PLC controller, display, middle control machine, control box, great Bao, tundish, long water pipe, big
Packet slide plate, crystallizer and strand are provided with big packet slide plate on the liquid outlet of the bottoms great Bao, and the bottoms great Bao liquid outlet passes through
Long water pipe is connected with tundish, and the tundish bottom is connected with crystallizer, and the crystallizer is internally provided with strand；
The tundish is internally provided with weight sensor, and the weight sensor is connected by signal wire with PLC controller, described big
Packet slide plate is connected with hydraulic cylinder by mechanical arm, and pulse switch is provided on the big packet slide plate, and the pulse switch is logical
It crosses signal wire with middle control machine to be connected, control box is connected on the middle control machine, the display and middle control machine pass through signal
Line is connected with PLC controller respectively；
Steps are as follows for the control method of the tundish liquid-level auto-control device：
S1, there is molten steel in big packet storage inside；After ladle opens cast, molten steel is from big packet by bottom liquid outlet through length
Water pipe injects molten steel to tundish；During injecting molten steel, tundish is monitored by the weight sensor of tundish in real time
Weight whether reach predetermined weight value；
S2, when monitoring that the weight of the tundish reaches the predetermined weight value, by PLC controller notify it is described in
Between unwrap and pour, to carry out pouring strand to crystallizer injection molten steel；
S3, when the current weight value of the tundish monitored be more than predetermined weight value when, PLC controller by adjusting
Middle control machine operates big packet slide plate outlet aperture to adjust the flow of molten steel by control box；And then it controls to tundish and injects molten steel
Speed, to control within the scope of the preset weight that the molten steel content in the tundish is worth on the basis of the predetermined weight value.
Further, a kind of tundish automatic Control Systems of Liquids Height, including PLC control modules, middle control module, display mould
Block, monitoring weight module, notification unit, poring rate control module；
The monitoring weight module is connected with PLC control modules；After opening cast for ladle, noted to tundish in ladle
Whether the weight that the tundish is monitored during entering molten steel reaches predetermined weight value；
The display module is connected by signal wire with PLC control modules；It is shown for field data；
The middle control module is connected by signal wire with PLC control modules；Aperture is exported for big packet slide plate to adjust steel
The flow of water；And then control the speed that molten steel is injected to tundish；
The PLC control modules notify the centre is unwrapped to pour by notification unit, to inject steel to the crystallizer
Liquid；
The poring rate control module is used for during the tundish injects molten steel to the crystallizer, according to
The current weight value of the tundish monitored adjusts the speed that the ladle injects molten steel to the tundish, to control
It states within the scope of the preset weight that the molten steel content in tundish is worth on the basis of the predetermined weight value.
Further, the tundish automatic Control Systems of Liquids Height further includes：It opens and pours control unit, for by the steel
On packet tapping recoil after turntable, the sled mechanism that the ladle taken after turntable is opened in control makes the ladle open to pour, with
Molten steel is injected to the tundish.
The configuration of the present invention is simple, it is easy to operate, when the weight for monitoring tundish reaches predetermined weight value among notice
It unwraps and pours, to inject molten steel to crystallizer；It is connected with PLC control modules by monitoring weight module；Cast is opened for ladle
Afterwards, whether the weight for the tundish being monitored during ladle injects molten steel to tundish reaches predetermined weight value, middle control
Module is connected by signal wire with PLC control modules；Aperture is exported for big packet slide plate to adjust the flow of molten steel；And then it controls
The speed of molten steel is injected to tundish；The preset weight being worth on the basis of predetermined weight value by controlling the molten steel content in tundish
In range；Poring rate control module is used for during the tundish injects molten steel to the crystallizer, according to monitoring
To the tundish current weight value adjust the ladle to the tundish inject molten steel speed, with control it is described in
Between wrap in the preset weight that is worth on the basis of the predetermined weight value of molten steel content within the scope of, to interfere vortex in ladle
It generates, so as to effectively eliminate the whirlpool slag of ladle, to improve Molten Steel Cleanliness, therefore ladle need not be closed in advance
Cast, and then recovery rate of iron is improved, stability contorting tundish weight is gone back, reduces the level fluctuation of tundish to strand
The influence of quality.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings；
Fig. 1 is the structural schematic diagram of the tundish method for automatic controlling liquid level of the present invention；
Fig. 2 is the module map of the tundish automatic Control Systems of Liquids Height of the present invention.
Specific implementation mode
The preferred embodiment of the present invention is described in detail below in conjunction with the accompanying drawings, so that advantages and features of the invention energy
It is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
As shown in Figs. 1-2, a kind of tundish method for automatic controlling liquid level of the present invention and system include that tundish liquid level is automatic
Control device, the automatic control device include PLC controller 1, display 2, middle control machine 3, control box 4, greatly packet 5, tundish
6, long water pipe 7, big packet slide plate 8, crystallizer 9 and strand 10 are provided with big packet slide plate 8 on 5 bottom liquid outlets of the big packet, described
5 bottom liquid outlets of big packet are connected by long water pipe 7 with tundish 6, and 6 bottom of the tundish is connected with crystallizer 9, institute
It states crystallizer 9 and is internally provided with strand 10；The tundish 6 is internally provided with weight sensor, and the weight sensor passes through
Signal wire is connected with PLC controller 1, and the big packet slide plate 8 is connected with hydraulic cylinder, the big packet slide plate 8 by mechanical arm
On be provided with pulse switch, the pulse switch is connected by signal wire with middle control machine 3, is connected on the middle control machine 3
Control box 4, the display 2 and middle control machine 3 are connected with PLC controller 1 respectively by signal wire；
Steps are as follows for the control method of the tundish liquid-level auto-control device：
S1, there is molten steel in 5 storage insides of packet greatly；After ladle opens cast, molten steel is passed through from big packet 5 by bottom liquid outlet
Long water pipe 7 injects molten steel to tundish 6；During injecting molten steel, in being monitored in real time by the weight sensor of tundish 6
Between packet 6 weight whether reach predetermined weight value；
S2, when monitoring that the weight of the tundish 6 reaches the predetermined weight value, notified by PLC controller 1 described
Tundish 6, which is opened, to be poured, and carries out pouring strand to inject molten steel to the crystallizer 9；
S3, when the current weight value of the tundish 6 monitored be more than predetermined weight value when, PLC controller 1 passes through tune
Whole middle control machine 3 operates the big outlet aperture of packet slide plate 8 to adjust the flow of molten steel by control box 4；And then it controls and is injected to tundish 6
The speed of molten steel, the preset weight range being worth on the basis of the predetermined weight value by controlling the molten steel content in the tundish
It is interior.
A kind of tundish automatic Control Systems of Liquids Height, including PLC control modules, middle control module, display module, monitoring weight
Module, notification unit, poring rate control module；
The monitoring weight module is connected with PLC control modules；After opening cast for ladle, noted to tundish in ladle
Whether the weight that the tundish is monitored during entering molten steel reaches predetermined weight value；
The display module is connected by signal wire with PLC control modules；It is shown for field data；
The middle control module is connected by signal wire with PLC control modules；Aperture is exported for big packet slide plate 8 to adjust steel
The flow of water；And then control the speed that molten steel is injected to tundish 6；
The PLC control modules notify the centre is unwrapped to pour by notification unit, to inject steel to the crystallizer
Liquid；
The poring rate control module is used for during the tundish injects molten steel to the crystallizer, according to
The current weight value of the tundish monitored adjusts the speed that the ladle injects molten steel to the tundish, to control
It states within the scope of the preset weight that the molten steel content in tundish is worth on the basis of the predetermined weight value.
The tundish automatic Control Systems of Liquids Height further includes：It opens and pours control unit, for after the ladle is tapped
It takes after turntable, control, which opens the sled mechanism of the ladle taken after turntable the ladle is made to open, pours, in described
Between packet injection molten steel.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of ripe in the prior art bolt, rivet, welding etc.
Conventional means, machinery, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (3)
1. a kind of tundish method for automatic controlling liquid level, it is characterised in that：Including tundish liquid-level auto-control device, it is described from
Dynamic control device includes PLC controller (1), display (2), middle control machine (3), control box (4), big packet (5), tundish (6), length
Water pipe (7), big packet slide plate (8), crystallizer (9) and strand (10) are provided with big packet slide plate on big packet (5) bottom liquid outlet
(8), described big packet (5) bottom liquid outlet is connected by long water pipe (7) with tundish (6), tundish (6) the bottom connection
It is provided with crystallizer (9), the crystallizer (9) is internally provided with strand (10)；The tundish (6) is internally provided with weight biography
Sensor, the weight sensor are connected by signal wire with PLC controller (1), and the big packet slide plate (8) is connected by mechanical arm
It is provided with hydraulic cylinder, is provided with pulse switch on the big packet slide plate (8), the pulse switch passes through signal wire and middle control machine
(3) it is connected, control box (4) is connected on the middle control machine (3), the display (2) and middle control machine (3) pass through signal wire
It is connected respectively with PLC controller (1)；
Steps are as follows for the control method of the tundish liquid-level auto-control device：
S1, in great Bao (5), storage inside has molten steel；After ladle opens cast, molten steel is passed through from great Bao (5) by bottom liquid outlet
Long water pipe (7) injects molten steel to tundish (6)；During injecting molten steel, the weight sensor by tundish (6) is real-time
Whether the weight of monitoring tundish (6) reaches predetermined weight value；
S2, when monitoring that the weight of the tundish (6) reaches the predetermined weight value, by PLC controller (1) notice described in
Tundish (6), which is opened, to be poured, to carry out pouring strand to the crystallizer (9) injection molten steel；
S3, when the current weight value of the tundish (6) monitored be more than predetermined weight value when, PLC controller (1) passes through tune
Whole middle control machine (3) operates big packet slide plate (8) outlet aperture to adjust the flow of molten steel by control box (4)；And then it controls to centre
The speed for wrapping (6) injection molten steel is worth by control the molten steel content in the tundish on the basis of predetermined weight value pre-
If in weight range.
2. a kind of tundish automatic Control Systems of Liquids Height, it is characterised in that：Including PLC control modules, middle control module, display mould
Block, monitoring weight module, notification unit, poring rate control module；
The monitoring weight module is connected with PLC control modules；After opening cast for ladle, steel is injected to tundish in ladle
Whether the weight that the tundish is monitored during liquid reaches predetermined weight value；
The display module is connected by signal wire with PLC control modules；It is shown for field data；
The middle control module is connected by signal wire with PLC control modules；Aperture is exported for big packet slide plate (8) to adjust molten steel
Flow；And then control the speed that molten steel is injected to tundish (6)；
The PLC control modules notify the centre is unwrapped to pour by notification unit, to inject molten steel to the crystallizer；
The poring rate control module is used for during the tundish injects molten steel to the crystallizer, according to monitoring
To the tundish current weight value adjust the ladle to the tundish inject molten steel speed, with control it is described in
Between wrap in the preset weight that is worth on the basis of the predetermined weight value of molten steel content within the scope of.
3. a kind of tundish automatic Control Systems of Liquids Height as claimed in claim 2, it is characterised in that：The tundish liquid level is certainly
Autocontrol system further includes：It opens and pours control unit, after the turntable on recoil that the ladle is tapped, control is opened and taken
The sled mechanism of the ladle after turntable makes the ladle open to pour, to inject molten steel to the tundish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534889.XA CN108555262A (en) | 2018-05-23 | 2018-05-23 | A kind of tundish method for automatic controlling liquid level and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810534889.XA CN108555262A (en) | 2018-05-23 | 2018-05-23 | A kind of tundish method for automatic controlling liquid level and system |
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| CN108555262A true CN108555262A (en) | 2018-09-21 |
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| CN201810534889.XA Pending CN108555262A (en) | 2018-05-23 | 2018-05-23 | A kind of tundish method for automatic controlling liquid level and system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110586885A (en) * | 2019-10-24 | 2019-12-20 | 广东工业大学 | Automatic liquid supplementing device |
| CN111250672A (en) * | 2018-11-30 | 2020-06-09 | 上海梅山钢铁股份有限公司 | Continuous casting ladle final pouring method based on steel passing amount comparison |
| CN111496212A (en) * | 2020-06-08 | 2020-08-07 | 洛阳理工学院 | Automatic control method and system for liquid level of tundish |
| CN112139467A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Water gap action control method based on prolonging service life of sliding water gap |
| CN112276070A (en) * | 2020-10-16 | 2021-01-29 | 联峰钢铁（张家港）有限公司 | Automatic tundish weight regulating and controlling method |
| CN113102711A (en) * | 2021-04-01 | 2021-07-13 | 中国第一重型机械股份公司 | Method and device for producing forged piece |
| CN114460894A (en) * | 2021-12-27 | 2022-05-10 | 日照钢铁控股集团有限公司 | Tundish control management system and method |
| CN115138832A (en) * | 2021-03-29 | 2022-10-04 | 宝山钢铁股份有限公司 | Method for prolonging number of pure steel pouring furnaces based on molten steel weight information |
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| CN105057609A (en) * | 2015-09-22 | 2015-11-18 | 武汉钢铁(集团)公司 | Control method of liquid level of liquid steel in tundish during continuous casting |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111250672A (en) * | 2018-11-30 | 2020-06-09 | 上海梅山钢铁股份有限公司 | Continuous casting ladle final pouring method based on steel passing amount comparison |
| CN112139467A (en) * | 2019-06-28 | 2020-12-29 | 宝山钢铁股份有限公司 | Water gap action control method based on prolonging service life of sliding water gap |
| CN112139467B (en) * | 2019-06-28 | 2021-09-17 | 宝山钢铁股份有限公司 | Water gap action control method based on prolonging service life of sliding water gap |
| CN110586885A (en) * | 2019-10-24 | 2019-12-20 | 广东工业大学 | Automatic liquid supplementing device |
| CN111496212A (en) * | 2020-06-08 | 2020-08-07 | 洛阳理工学院 | Automatic control method and system for liquid level of tundish |
| CN111496212B (en) * | 2020-06-08 | 2021-09-07 | 洛阳理工学院 | Automatic control method and system for liquid level of tundish |
| CN112276070A (en) * | 2020-10-16 | 2021-01-29 | 联峰钢铁（张家港）有限公司 | Automatic tundish weight regulating and controlling method |
| CN115138832A (en) * | 2021-03-29 | 2022-10-04 | 宝山钢铁股份有限公司 | Method for prolonging number of pure steel pouring furnaces based on molten steel weight information |
| CN115138832B (en) * | 2021-03-29 | 2024-01-09 | 宝山钢铁股份有限公司 | Method for prolonging number of pure steel pouring furnaces based on molten steel weight information |
| CN113102711A (en) * | 2021-04-01 | 2021-07-13 | 中国第一重型机械股份公司 | Method and device for producing forged piece |
| CN114460894A (en) * | 2021-12-27 | 2022-05-10 | 日照钢铁控股集团有限公司 | Tundish control management system and method |
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Application publication date: 20180921 |