CN1640583A - Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof - Google Patents
Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof Download PDFInfo
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- CN1640583A CN1640583A CN 200410015699 CN200410015699A CN1640583A CN 1640583 A CN1640583 A CN 1640583A CN 200410015699 CN200410015699 CN 200410015699 CN 200410015699 A CN200410015699 A CN 200410015699A CN 1640583 A CN1640583 A CN 1640583A
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Abstract
The present invention discloses a casting cooling process and its equipment, and is aimed at providing a gas cooling method for cooling casting blank obtained by continuous casting process by means of two cooling chambers. Said method includes the following steps: making gas be passed through a controller and a refrigerator, then utilizing nozzle to spray said gas on the surface of casting blank to cool said casting blank. Said invented equipment includes pipeline for gas flow, nozzle, a controller and a refrigerator.
Description
Technical field
The present invention relates to a kind of casting process for cooling and device thereof.More particularly, the present invention relates to a kind of continuous casting two cold chamber strand method for gas cooling and device thereof.
Background technology
In the continuous casting production process of steel casting, molten steel still need continue cooling after the crystallizer cooling, and the space of this part cooling is commonly referred to two cold houses.The quality of strand cooling effect in two cold houses is vital to the quality influence of strand.The cooling technology that uses mainly contains following two kinds at present:
First kind is the water cooling technology, and this is the most general cooling scheme, and utilization rate is more than 90% in present two cold house's types of cooling.The water cooling technology is that water is cooked cooling agent, and water injects directly on the strand by nozzle.This technology is simpler, but sprays because of belonging to rigidity, has the casting billet surface sensitive for damages, produce shrinkage cavity and crackle and loose, and water consumption is big, defectives such as nozzle is easily stifled, operating cost height, and the utilization of cooling medium simultaneously is subjected to the restriction of water resource.
Second kind is the aerosol cooling technology, and it is improved in addition on the basis of water cooling technology, promptly adopts two kinds of cooling medium water and gas simultaneously.This technology cooling effect is more better than water cooling technology, but its operating cost is higher, and nozzle quality is had relatively high expectations, and still exists and the same defective of water cooling technology.
Summary of the invention
Primary and foremost purpose of the present invention is to overcome deficiency of the prior art, and a kind of continuous casting two cold chamber strand method for gas cooling is provided.
The present invention also aims to provide a kind of continuous casting two cold chamber strand gas quench system.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The invention provides a kind of continuous casting two cold chamber strand method for gas cooling, comprise the steps:
Make gas pass through a controller, with the flow and the pressure of adjustments of gas;
Make gas pass through a refrigerator, to reduce the temperature of gas;
Make gas cool off strand at casting billet surface by nozzle ejection.
In this method for gas cooling, gas can carry out before gas is by controller by the step of refrigerator.
The present invention also provides a kind of continuous casting two cold chamber strand gas quench system, comprises pipeline, the nozzle of gas communication, and a controller also is installed on the gas communication pipeline, is used to control the pressure and the flow of gas; A refrigerator is used for refrigerating gas its temperature is reduced.
On the gas communication pipeline of gas quench system, a temperature monitoring can also be installed, be used to monitor cooled gas temperature.
Its middle controller can be one and have the Self controlling valve of regulating parts that refrigerator can be a semiconductor cooling device.Refrigerator can also be a heat exchanger.
Compared with prior art, the invention has the beneficial effects as follows:
Adopt gas cooling technology, can reduce cooling stress and concentrate and strand oxide skin, eliminate the face crack of strand and inherent shrinkage cavity, loose defective, thereby improve the strand lumber recovery; Can save great lot of water resources, remove water treatment technology equipment from, save the land used of laying relevant apparatus, save production cost.Using gases can also avoid answering aerosol, the visibility of raising work-yard, clean environment and the raising production safety coefficient of steam formation under the cold climate condition as cooling medium.
Description of drawings
Fig. 1 is the process schematic representation of method for gas cooling in the specific embodiment of the invention 1.
Fig. 2 is the structural representation of gas quench system in the specific embodiment of the invention 1.
The specific embodiment
With reference to the accompanying drawings, will describe the present invention below.
The technological process of method for gas cooling as shown in Figure 1 in the specific embodiments of the invention 1.
In the specific embodiment 1, cooling medium adopts the gas of low-pressure, can be air, also can adopt inert gas.Continuous casting two cold chamber strand method for gas cooling comprises the steps: at first to make gas to pass through a controller 2 through pipeline 1 among the present invention, and the flow and the pressure of gas are adjusted at this; Make gas pass through a refrigerator 3 then, to reduce the temperature of gas; Make gas pass through nozzle 6 at last.Molten steel enters two cold houses after crystallizer 7 coolings.Refrigerating gas is injected in strand 8 surfaces by nozzle 6 and cools off, and generates strand product 9.
In this method for gas cooling, gas can carry out before gas is by controller 2 by the step of refrigerator 3.
The structure of gas quench system as shown in Figure 2 in the specific embodiments of the invention 1.
Continuous casting two cold chamber strand gas quench system comprises pipeline 1, the nozzle 6 of gas communication in the specific embodiment 1, and the controller of installing on gas communication pipeline 12, is used to control the pressure and the flow of gas; Refrigerator 3 is used for refrigerating gas its temperature is reduced.
In the gas quench system of specific embodiment 1, a temperature monitoring 4 also is installed on gas communication pipeline 1, be used to monitor cooled gas temperature, its installation site is between refrigerator and nozzle, have a holding wire 5 that temperature signal is passed to refrigerator 3, refrigerator 3 is regulated the size of refrigerating capacity according to temperature information.Holding wire 5 passes to temperature signal controller 2 simultaneously, and controller 2 can be adjusted gas pressure and flow in the pipeline 1 according to temperature signal.
The shape adjustments of the strand that the quantity of nozzle 6 and shape can be processed as required can be circular single hole, also can be rectangle.
At last, it is also to be noted that what more than enumerate only is specific embodiments of the invention.Obviously, the invention is not restricted to above embodiment, many distortion can also be arranged.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed by the invention all should be thought protection scope of the present invention.
Claims (10)
1, a kind of continuous casting two cold chamber strand method for gas cooling is characterized in that comprising the steps:
Make gas pass through a controller, with the flow and the pressure of adjustments of gas;
Make gas pass through a refrigerator, to reduce the temperature of gas;
Make gas cool off strand at casting billet surface by nozzle ejection.
2, method for gas cooling according to claim 1 is characterized in that gas carried out before gas is by controller by the step of refrigerator.
3, any method for gas cooling according to claim 1 and 2 is characterized in that described gas is the gas of low pressure.
4, any method for gas cooling according to claim 3 is characterized in that described gas is air.
5, any method for gas cooling according to claim 3 is characterized in that described gas is inert gas.
6, a kind of continuous casting two cold chamber strand gas quench system comprises it is characterized in that the pipeline and the nozzle of gas communication also being equipped with on described gas communication pipeline
A controller is used to control the pressure and the flow of gas;
A refrigerator is used for refrigerating gas its temperature is reduced.
7, gas quench system as claimed in claim 6 is characterized in that a temperature monitoring also is installed on described gas communication pipeline, is used to monitor cooled gas temperature.
8, gas quench system as claimed in claim 6 is characterized in that described controller is one and has the Self controlling valve of regulating parts.
9, gas quench system as claimed in claim 6 is characterized in that described refrigerator is a semiconductor cooling device.
10, gas quench system as claimed in claim 6 is characterized in that described refrigerator is a heat exchanger, and its cooling medium is the liquid lower than gas temperature in the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015699 CN1640583A (en) | 2004-01-06 | 2004-01-06 | Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410015699 CN1640583A (en) | 2004-01-06 | 2004-01-06 | Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof |
Publications (1)
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| CN1640583A true CN1640583A (en) | 2005-07-20 |
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| CN 200410015699 Pending CN1640583A (en) | 2004-01-06 | 2004-01-06 | Continuous-casting two-cooling-chamber casting blank gas cooling method and apparatus thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542715C (en) * | 2007-10-19 | 2009-09-23 | 攀钢集团攀枝花钢铁研究院 | The continuous cast method of 450mm * 360mm medium carbon manganese steel bloom |
| CN111906267A (en) * | 2020-07-28 | 2020-11-10 | 北京科技大学 | Method and system for cooling full gas in continuous casting secondary cooling section |
| CN112157237A (en) * | 2020-09-30 | 2021-01-01 | 联峰钢铁（张家港）有限公司 | System and method for controlling surface defects of medium-high carbon continuous casting billet |
| CN114769546A (en) * | 2022-06-17 | 2022-07-22 | 北京科技大学 | Method for improving cooling uniformity of casting blank |
| CN115555531A (en) * | 2022-12-02 | 2023-01-03 | 北京科技大学 | Gas cooling device and process for square billet continuous casting secondary cooling area |
-
2004
- 2004-01-06 CN CN 200410015699 patent/CN1640583A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100542715C (en) * | 2007-10-19 | 2009-09-23 | 攀钢集团攀枝花钢铁研究院 | The continuous cast method of 450mm * 360mm medium carbon manganese steel bloom |
| CN111906267A (en) * | 2020-07-28 | 2020-11-10 | 北京科技大学 | Method and system for cooling full gas in continuous casting secondary cooling section |
| CN112157237A (en) * | 2020-09-30 | 2021-01-01 | 联峰钢铁（张家港）有限公司 | System and method for controlling surface defects of medium-high carbon continuous casting billet |
| CN114769546A (en) * | 2022-06-17 | 2022-07-22 | 北京科技大学 | Method for improving cooling uniformity of casting blank |
| CN115555531A (en) * | 2022-12-02 | 2023-01-03 | 北京科技大学 | Gas cooling device and process for square billet continuous casting secondary cooling area |
| CN115555531B (en) * | 2022-12-02 | 2023-03-07 | 北京科技大学 | Gas cooling device and process for square billet continuous casting secondary cooling area |
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