CN205020776U - A molten steel is cooling device in advance for high -speed continuous casting machine - Google Patents
A molten steel is cooling device in advance for high -speed continuous casting machine Download PDFInfo
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- CN205020776U CN205020776U CN201520641229.3U CN201520641229U CN205020776U CN 205020776 U CN205020776 U CN 205020776U CN 201520641229 U CN201520641229 U CN 201520641229U CN 205020776 U CN205020776 U CN 205020776U
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- molten steel
- rotating disc
- bucket
- cooled
- rotary disk
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Abstract
The utility model provides a molten steel is cooling device in advance for high -speed continuous casting machine, including molten steel precooling bucket, rotary disk and rotary disk transmission system, be equipped with the rotary disk in molten steel precooling bucket, rotary disk transmission system links to each other with the rotary disk, has seted up cooling inert gas air inlet at rotary disk transmission system with the junction of rotary disk, is equipped with the gas outlet on molten steel precooling bucket wall, and the bottom of molten steel precooling bucket is equipped with the molten steel export, and the molten steel export links to each other with the long mouth of a river of crystallizer. The beneficial effects of the utility model are that: being rotary disk provide mechanical power through rotary disk transmission system, smashing the molten steel, the molten steel after smashing is close curing temperature with cooling gas's heat exchange with the temperature cooling of molten steel, reduces the super -heated rate of liquid molten steel, forms the crystal nucleus of molten steel simultaneously, and the lower part of molten steel precooling bucket keeps necessary liquid level, guarantees that the molten steel pours into the stability of crystallizer into to accelerate setting rate and the grain refinement of molten steel in the crystallizer, improve the steel speed of drawing.
Description
Technical field
The utility model belongs to conticaster field, especially relates to the pre-cooled device of a kind of molten steel for high-speed continuous casting machine.
Background technology
As everyone knows, continuous casting installation for casting is generally made up of steel ladle, turret, pans, crystallizer, secondary cooling zone and withdrawal straightening machine etc.Continuous casting operation principle is: the molten steel provided by steelshop by steel ladle handling on the turret of conticaster, molten steel injects intermediate tank of continuous casting machine by the steel ladle mouth of a river, molten steel is injected conticaster crystallizer by immersion long nozzle by the molten steel in pans, forms continuous casting billet after molten steel cools crust in a crystallizer from the pull-out of crystallizer lower end.It can thus be appreciated that the process of molten steel solidification is: molten steel cools-formation nucleus-nuclei growth-solidify completely.In general, the nucleus that early solidification is formed is more, and refinement got over by the crystal grain after molten steel solidification, and steel quality is better.Therefore, the main cause of restriction pulling speed of continuous casting is that molten steel cooling velocity in crystallizer is slow, crust is slow, and one of the slow reason that crusts to be exactly the degree of superheat of molten steel too high, affect setting rate.In the prior art, normally between crystallizer and steel billet, increase heat transfer efficiency, accelerate the cooling velocity of molten steel in crystallizer with this, but this kind of method not can solve this type of technical problem.
Summary of the invention
In view of this, the inventive point of this patent is not increase heat transfer efficiency between crystallizer and steel billet, but makes improvement in the overtemperature of molten steel, namely between tundish and crystallizer, increases a pre-cooled device of the molten steel for high-speed continuous casting machine.
For achieving the above object, the technical solution of the utility model is achieved in that
The pre-cooled device of a kind of molten steel for high-speed continuous casting machine, comprise the pre-cooled bucket of molten steel, rotating disc and rotating disc transmission system, the pre-cooled bucket of described molten steel is positioned at the bottom of tundish, molten steel in tundish enters the pre-cooled bucket of molten steel by the molten steel entrance at molten steel pre-cooled bucket top, the below being positioned at described molten steel entrance in the pre-cooled bucket of described molten steel is provided with described rotating disc, described rotating disc transmission system is connected with described rotating disc, driven rotary disc spins, molten steel is broken into vaporific by machine power, graininess, the junction that described molten steel pre-cooled bucket wall is positioned at described rotating disc transmission system and rotating disc offers and cools inert gas air inlet, for passing into cooling inert gas, by the heat exchange of the molten steel after pulverizing and refrigerating gas, the temperature of molten steel is cooled close to solidification temperature, reduce the degree of superheat of liquid molten steel, form the nucleus of molten steel simultaneously, described molten steel pre-cooled bucket wall is positioned at above described rotating disc and is provided with gas outlet, for discharging cooling inert gas, molten steel outlet is provided with in the bottom of the pre-cooled bucket of described molten steel, described molten steel outlet is connected with the long nozzle of crystallizer.
Further, described rotating disc transmission system comprises motor, reductor, power transmission shaft and umbrella gear box, described motor, reductor are positioned at the outside of the pre-cooled bucket of molten steel, described motor is connected with reductor, described umbrella gear box is connected with rotating disc, described power transmission shaft is through the bucket wall of the pre-cooled bucket of described molten steel, and described reductor is connected with umbrella gear box by power transmission shaft, driven rotary disc spins.
Further, described rotating disc is manufactured by heat resisting steel, is covered with insulation material in its outside.
Further, the anglec of rotation of described rotating disc is between 45-90 degree.
Further, described rotating disc transmission system is manufactured by heat resisting steel, is covered with insulation material in its outside.
Further, in order to ensure that molten steel injects the stable of crystallizer, molten steel needs the liquid level according to drawing steel speed to keep certain in the pre-cooled bucket of molten steel, thus accelerates molten steel setting rate in a crystallizer and grain refinement, thus improves pulling rate.
Relative to prior art, the pre-cooled device of molten steel for high-speed continuous casting machine described in the utility model has following advantage: by rotating disc transmission system for rotating disc provides machine power, molten steel is smashed, by the heat exchange of the molten steel after pulverizing and refrigerating gas, the temperature of molten steel is cooled close to solidification temperature, reduce the degree of superheat of liquid molten steel, form the nucleus of molten steel simultaneously, reduce the length of orientation crystalline substance and wait the diameter of axle No yield point crystalline substance, reduce the precipitation of harmful substance in molten steel, the bottom of the pre-cooled bucket of molten steel keeps necessary liquid level equally, ensure that molten steel injects the stable of crystallizer, thus accelerate molten steel setting rate in a crystallizer and grain refinement, improve and draw steel speed, there is novel structure, improve continuous casting billet quality, improve the advantages such as pulling speed of continuous casting.
Accompanying drawing explanation
The accompanying drawing forming a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is structural representation of the present utility model.
Description of reference numerals:
The pre-cooled bucket of 1-molten steel, 2-rotating disc, 3-tundish, 4-motor, 5-reductor, 6-power transmission shaft, 7-umbrella gear box, 8-cools inert gas air inlet, 9-gas outlet, 10-molten steel outlet.
Detailed description of the invention
It should be noted that, when not conflicting, the embodiment in the utility model and the feature in embodiment can combine mutually.
Below with reference to the accompanying drawings and describe the utility model in detail in conjunction with the embodiments.
As shown in Figure 1, the pre-cooled device of a kind of molten steel for high-speed continuous casting machine, comprise the pre-cooled bucket 1 of molten steel, rotating disc 2 and rotating disc transmission system, the pre-cooled bucket 1 of described molten steel is positioned at the bottom of tundish 3, molten steel in tundish 3 enters the pre-cooled bucket 1 of molten steel by the molten steel entrance at molten steel pre-cooled bucket 1 top, the below being positioned at described molten steel pre-cooled bucket 1 molten steel entrance in the pre-cooled bucket of described molten steel 1 is provided with described rotating disc 2, described rotating disc 2 is manufactured by heat resisting steel, insulation material is covered with in its outside, the anglec of rotation of described rotating disc 2 is between 45-90 degree, described rotating disc transmission system comprises motor 4, reductor 5, power transmission shaft 6 and umbrella gear box 7, described motor 4, reductor 5 is positioned at the outside of the pre-cooled bucket 1 of molten steel, described motor 4 is connected with reductor 5, described umbrella gear box 7 is connected with rotating disc 2, described power transmission shaft 6 is through the bucket wall of the pre-cooled bucket 1 of described molten steel, described reductor 5 is connected with umbrella gear box 7 by power transmission shaft 6, driven rotary dish 2 rotates, molten steel is broken into vaporific by machine power, graininess, described rotating disc transmission system is manufactured by heat resisting steel, insulation material is covered with in its outside, described molten steel pre-cooled bucket wall is positioned at described power transmission shaft 6 place and is provided with cooling inert gas air inlet 8, for passing into cooling inert gas, first cool rotating disc transmission system and enter the pre-cooled bucket 1 of molten steel again, by the heat exchange of the molten steel after pulverizing and refrigerating gas, the temperature of molten steel is cooled close to solidification temperature, reduce the degree of superheat of liquid molten steel, form the nucleus of molten steel simultaneously, described molten steel pre-cooled bucket wall is positioned at above described rotating disc 2 and is provided with gas outlet 9, for discharging cooling inert gas, molten steel outlet 10 is provided with in the bottom of the pre-cooled bucket 1 of described molten steel, described molten steel outlet 10 is connected with the long nozzle of crystallizer, in order to ensure that molten steel injects the stable of crystallizer, molten steel needs the liquid level according to drawing steel speed to keep certain in the pre-cooled bucket of molten steel 1, thus accelerate molten steel setting rate in a crystallizer and grain refinement, thus raising pulling rate.
During work, molten steel in tundish 3 enters the pre-cooled bucket 1 of molten steel, described rotating disc transmission system driven rotary dish 2 rotates, molten steel is broken into vaporific by machine power, graininess, cooling inert gas is passed into by the cooling inert gas air inlet 8 on the pre-cooled bucket wall of molten steel, the temperature of molten steel cools close to solidification temperature by the molten steel after pulverizing and the heat exchange of refrigerating gas, reduce the degree of superheat of liquid molten steel, form the nucleus of molten steel simultaneously, cooling inert gas is discharged by gas outlet 9, molten steel enters crystallizer by molten steel outlet 10, in order to ensure that molten steel injects the stable of crystallizer, molten steel needs the liquid level according to drawing steel speed to keep certain in the pre-cooled bucket of molten steel, thus accelerate molten steel setting rate in a crystallizer and grain refinement.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (6)
1. the pre-cooled device of the molten steel for high-speed continuous casting machine, it is characterized in that: comprise the pre-cooled bucket of molten steel, rotating disc and rotating disc transmission system, the pre-cooled bucket of described molten steel is positioned at the bottom of tundish, molten steel in tundish enters the pre-cooled bucket of molten steel by the molten steel entrance at molten steel pre-cooled bucket top, the below being positioned at described molten steel entrance in the pre-cooled bucket of described molten steel is provided with described rotating disc, described rotating disc transmission system is connected with described rotating disc, the junction that described molten steel pre-cooled bucket wall is positioned at described rotating disc transmission system and rotating disc offers and cools inert gas air inlet, described molten steel pre-cooled bucket wall is positioned at above described rotating disc and is provided with gas outlet, molten steel outlet is provided with in the bottom of the pre-cooled bucket of described molten steel, described molten steel outlet is connected with the long nozzle of crystallizer.
2. the pre-cooled device of a kind of molten steel for high-speed continuous casting machine according to claim 1, it is characterized in that: described rotating disc transmission system comprises motor, reductor, power transmission shaft and umbrella gear box, described motor, reductor are positioned at the outside of the pre-cooled bucket of molten steel, described motor is connected with reductor, described umbrella gear box is connected with rotating disc, described power transmission shaft is through the bucket wall of the pre-cooled bucket of described molten steel, and described reductor is connected with umbrella gear box by power transmission shaft.
3. the pre-cooled device of a kind of molten steel for high-speed continuous casting machine according to claim 1 and 2, is characterized in that: described rotating disc is manufactured by heat resisting steel, is covered with insulation material in its outside.
4. the pre-cooled device of a kind of molten steel for high-speed continuous casting machine according to claim 3, is characterized in that: the anglec of rotation of described rotating disc is between 45-90 degree.
5. the pre-cooled device of a kind of molten steel for high-speed continuous casting machine according to claim 4, is characterized in that: described rotating disc transmission system is manufactured by heat resisting steel, is covered with insulation material in its outside.
6. the pre-cooled device of a kind of molten steel for high-speed continuous casting machine according to claim 5, is characterized in that: molten steel needs the liquid level according to drawing steel speed to keep certain in the pre-cooled bucket of molten steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641229.3U CN205020776U (en) | 2015-08-21 | 2015-08-21 | A molten steel is cooling device in advance for high -speed continuous casting machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520641229.3U CN205020776U (en) | 2015-08-21 | 2015-08-21 | A molten steel is cooling device in advance for high -speed continuous casting machine |
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| Publication Number | Publication Date |
|---|---|
| CN205020776U true CN205020776U (en) | 2016-02-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520641229.3U Withdrawn - After Issue CN205020776U (en) | 2015-08-21 | 2015-08-21 | A molten steel is cooling device in advance for high -speed continuous casting machine |
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| CN (1) | CN205020776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014027A (en) * | 2015-08-21 | 2015-11-04 | 天津市中重科技工程有限公司 | Molten steel pre-cooling device for high speed continuous casting machine |
-
2015
- 2015-08-21 CN CN201520641229.3U patent/CN205020776U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014027A (en) * | 2015-08-21 | 2015-11-04 | 天津市中重科技工程有限公司 | Molten steel pre-cooling device for high speed continuous casting machine |
| CN105014027B (en) * | 2015-08-21 | 2017-03-22 | 天津市中重科技工程有限公司 | Molten steel pre-cooling device for high speed continuous casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160210 Effective date of abandoning: 20171114 |
|
| AV01 | Patent right actively abandoned |