CN105728680B - Conticaster air water balances dynamic control method - Google Patents
Conticaster air water balances dynamic control method Download PDFInfo
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- CN105728680B CN105728680B CN201610287622.6A CN201610287622A CN105728680B CN 105728680 B CN105728680 B CN 105728680B CN 201610287622 A CN201610287622 A CN 201610287622A CN 105728680 B CN105728680 B CN 105728680B
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- water
- air
- pressure
- cooling
- nozzle
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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
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/124—Accessories for subsequent treating or working cast stock in situ for cooling
Abstract
Dynamic control method is balanced it is an object of the invention to provide a kind of conticaster air water, the pressure by the cold compression air of dynamic regulation two can be realized, realize that the secondary cooling water pressure change caused to a variety of causes such as difference in height, dynamic runoff investigations carries out real time reaction, air water balance is set to be maintained at optimal atomizing effect required value, its technological means is：Pass through the cold and hot experimental data of nozzle first in nozzle type selecting, determine that nozzle realizes the air water poised state required for optimal atomization cooling effect, so as to set the setting curve of air pressure water in each cooling section, then by setting pressure-regulating valve and pressure transmitter in the compressed air inlet pipe road of each cooling branch road, using P I D regulative modes, curve is set according to air pressure water in identified each cooling section, using the current water of each branch road as independent variable, the compressed air admission pressure of its respective branch of dynamic control, air water balance is set to remain at optimum state.
Description
Technical field
The present invention relates to a kind of adjusting method of metallurgical continuous casting air water balance, more particularly to a kind of conticaster air water balanced dynamic
State control method.
Background technology
In the secondary cooling process of modern conticaster, to keep, cooling is uniform, improve cc billet surface quality, uses mostly
Dynamic vapor-water cooling, due in cooling procedure, using air water nozzle by being passed through compressed air come atomization cooling water, although
Atomization can be realized in a range of gas-water ratio by the optimization design of nozzle, but in actual production process be up to
To optimal atomizing effect, it is still necessary to optimize air water by Field adjustment and balance；
On the other hand, due to conticaster, height is general at more than ten meters in itself, and front end cooling section and the rear portion of conticaster are cooled down
The hydraulic pressure of section there will be due to difference in height after 0.1-0.2MPa difference, current installation of conticaster, generally by waterway tube
Road interior installing hole plate is poor come the water pressure for balancing front and rear section, and its method is complicated and regulation is difficult；
During continuous casting progress, because dynamic water allocation requires cooling water inflow with pulling rate dynamic change.The tune of cooling water inflow
Festival-gathering causes the dynamic change of nozzle-end hydraulic pressure, and traditional air water regulation can only adapt to certain static hydraulic pressure, in water mistake
Big or water easily influences atomizing effect when too small；
Current Static Gas water balance mode ensures atomization during maximum amount of water due to the compressed air pressure for needing to use
Effect, the air pressure generally used is higher, and two cold compression air excess will be caused to discharge when cooling water inflow is smaller, huge wave is caused
Take.
The content of the invention
Dynamic control method is balanced it is an object of the invention to provide a kind of conticaster air water, can be realized by dynamic tune
The pressure of two cold compression air is saved, the secondary cooling water pressure change caused to a variety of causes such as difference in height, dynamic runoff investigations is realized
Real time reaction is carried out, air water balance is maintained at optimal atomizing effect required value.
The purpose of the present invention is realized with following technological means：Design for continuous casting machine calculating is carried out first, and it is cold according to two
The result selection nozzle that water distribution is calculated, in nozzle type selecting by the cold and hot experimental data of nozzle, determines that nozzle is realized optimal
The air water poised state required for cooling effect is atomized, so as to set the setting curve of air pressure-water in each cooling section, then
By setting pressure-regulating valve and pressure transmitter in the compressed air inlet pipe road of each cooling branch road, adjusted using P I D
Section mode, curve is set according to air pressure in identified each cooling section-water, using the current water of each branch road as independent variable, is moved
State controls the compressed air admission pressure of its respective branch, air water balance is remained at optimum state.
The present invention conticaster air water balance dynamic control method beneficial effect be：Become by pressure-regulating valve and pressure
Device is sent, dynamic regulation is carried out to two cold compression air according to water in each cooling section-air pressure setting curve, can dynamically, surely
Surely the air water balance of vapor-water cooling is maintained at theoretical optimum state, method is simple, it is stable to adjust easy, cooling effect, together
When, due to taking the accurate dynamic regulation of air pressure-water, greatly reduce the use of two cold compression air under small water state
Amount, reduces a ton steel compressed air consumption, exemplified by shown in Fig. 3, under certain model nozzle characteristic, under identical cooling water inflow,
The dynamic gas water balance control method of the present invention is compared with Static Gas water balance control method, and its compressed air consumption is reduced about
50%。
Brief description of the drawings
Fig. 1 balances the control flow chart of dynamic control method for the conticaster air water of the present invention.
Fig. 2 is air pressure-water setting curve.
Fig. 3 is that compressed air consumption compares.
Embodiment
Referring to Fig. 1, Fig. 2, certain conticaster air water balance kinetic-control system first calculates progress two cold according to design for continuous casting machine
Water distribution is calculated, so as to carry out nozzle model specification selection, by the cold and hot experimental data of nozzle, determines that nozzle realizes optimal mist
Change the air water poised state required for cooling effect, so as to set the setting curve of air pressure-water in N number of cooling section, Ran Houtong
Cross in the compressed air inlet pipe road in each cooling branch road and pressure-regulating valve and pressure transmitter are set, adjusted using P I D
Mode, curve is set according to air pressure in identified each cooling section-water, and giving each branch road with two cold dynamic water allocation systems works as
Preceding water is independent variable, the compressed air admission pressure of its respective branch of dynamic control, and uses P I D regulative modes with same
The branch road actual amount of water of control forms optimal atomization cooling water and sprayed, so that air water balance remains at optimal shape
State.
Claims (2)
1. a kind of conticaster air water balances dynamic control method, it is characterised in that：Determine that nozzle realizes optimal atomization cooling first
Air water poised state required for effect, so that air pressure in each cooling section-water setting curve is set, then by each
Cool down and pressure-regulating valve and pressure transmitter are set in the compressed air inlet pipe road of branch road, using P I D regulative modes, according to
Air pressure in identified each cooling section-water setting curve, using the current water of each branch road as independent variable, its is corresponding for dynamic control
The compressed air admission pressure of branch road, makes air water balance remain at optimum state.
2. a kind of conticaster air water balance dynamic control method according to claim 1, it is characterised in that：Described gas
Pressure-water setting curve is to be determined in nozzle type selecting by the cold and hot experimental data of nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287622.6A CN105728680B (en) | 2016-05-04 | 2016-05-04 | Conticaster air water balances dynamic control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610287622.6A CN105728680B (en) | 2016-05-04 | 2016-05-04 | Conticaster air water balances dynamic control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105728680A CN105728680A (en) | 2016-07-06 |
| CN105728680B true CN105728680B (en) | 2017-09-22 |
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ID=56288605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610287622.6A Active CN105728680B (en) | 2016-05-04 | 2016-05-04 | Conticaster air water balances dynamic control method |
Country Status (1)
| Country | Link |
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| CN (1) | CN105728680B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107671252A (en) * | 2017-09-29 | 2018-02-09 | 四川德胜集团钒钛有限公司 | A kind of Continuous Casting Secondary Cooling system |
| CN110625080B (en) * | 2019-09-23 | 2022-04-26 | 中冶南方连铸技术工程有限责任公司 | Intelligent detection and control method for online working state of continuous casting secondary cooling system |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58184047A (en) * | 1982-04-20 | 1983-10-27 | Nippon Steel Corp | Secondary cooling method of ingot in continuous casting installation |
| JPS59185557A (en) * | 1983-04-05 | 1984-10-22 | Sumitomo Metal Ind Ltd | Device for spraying cooling water to continuous casting billet |
| JP2006326625A (en) * | 2005-05-25 | 2006-12-07 | Kogi Corp | Cast iron bar having deformed cross section, and continuous casting method and apparatus therefor |
| DE102009034847A1 (en) * | 2009-07-27 | 2011-02-03 | Sms Siemag Ag | Apparatus and method for controlled secondary cooling of a continuous casting plant |
| CN102814481B (en) * | 2012-08-29 | 2014-04-02 | 重庆大学 | Continuous casting secondary cooling dynamic control method based on online temperature measuring and heat transferring model |
| KR101421841B1 (en) * | 2012-12-21 | 2014-07-22 | 주식회사 포스코 | Hybrid nozzle cooling apparatus and method of control of nozzle in continuous casting installation |
| CN103008579B (en) * | 2012-12-28 | 2014-12-03 | 哈尔滨工业大学 | Continuous casting and directional solidification method of titanium aluminum alloy suspended cold crucible |
| CN104525885B (en) * | 2014-12-31 | 2016-06-15 | 中冶东方工程技术有限公司 | A kind of strong cold water spray system of cast steel and strong refrigerating technology |
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2016
- 2016-05-04 CN CN201610287622.6A patent/CN105728680B/en active Active
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| CN105728680A (en) | 2016-07-06 |
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