CN204108297U - A kind of tundish current stabilizer - Google Patents
A kind of tundish current stabilizer Download PDFInfo
- Publication number
- CN204108297U CN204108297U CN201420593859.3U CN201420593859U CN204108297U CN 204108297 U CN204108297 U CN 204108297U CN 201420593859 U CN201420593859 U CN 201420593859U CN 204108297 U CN204108297 U CN 204108297U
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- Prior art keywords
- tundish
- inner cavity
- flow
- molten steel
- diversion
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 239000003381 stabilizer Substances 0.000 title claims abstract description 28
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 38
- 239000010959 steel Substances 0.000 claims abstract description 38
- 238000002347 injection Methods 0.000 claims abstract description 16
- 239000007924 injection Substances 0.000 claims abstract description 16
- 239000002893 slag Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000009749 continuous casting Methods 0.000 description 4
- 238000009851 ferrous metallurgy Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000033764 rhythmic process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Continuous Casting (AREA)
Abstract
The utility model discloses a kind of tundish current stabilizer, be connected with tundish, described flow straightener comprises: pod apertures, inner chamber; Wherein, described pod apertures is arranged on the bottom of described inner chamber; Described inner chamber is connected with described tundish by described pod apertures, and molten steel is flowed in the injection zone of described tundish by described pod apertures.
Description
Technical Field
The utility model relates to a ferrous metallurgy continuous casting equipment field especially relates to a tundish current regulator.
Background
In the field of ferrous metallurgy continuous casting equipment, the structure of a flow stabilizer influences the flowing form of molten steel in a tundish to a great extent, and the reasonable structure of the flow stabilizer can ensure the rationalization of the whole flowing form of the molten steel in the tundish so as to reduce the dead zone proportion of the corner boundary of the tundish, wherein the dead zone proportion is caused by the imbalance of the actual residence time of the molten steel in the tundish.
However, the conventional flow stabilizer used at present cuts off the impact of molten steel injection flow on the boundary of the tundish corner, so that the molten steel flow velocity of two corners of the tundish injection area is very low, the boundary of the tundish corner becomes a dead zone, and the tundish injection area is subjected to the upward return action of the molten steel flow to form turbulent flow, so that the slag entrapment phenomenon occurs, and the molten steel quality is seriously influenced.
SUMMERY OF THE UTILITY MODEL
To the problem that prior art exists, the utility model discloses a various embodiments provide a middle package current regulator, can effectively reduce middle package and annotate the regional surperficial torrent of class, avoid appearing the molten steel slag entrapment phenomenon, improve the casting blank quality.
The technical scheme of the utility model is realized like this:
the embodiment of the utility model provides a middle package current stabilizer is connected with the middle package, current stabilizer includes: a diversion hole and an inner cavity; wherein,
the flow guide hole is arranged at the bottom of the inner cavity;
the inner cavity is connected with the tundish through the diversion holes, so that the molten steel flows into the injection area of the tundish through the diversion holes.
In the above-mentioned scheme, the water conservancy diversion hole includes:
the first flow guide hole is formed in one side of the bottom of the inner cavity;
the other side of the bottom of the inner cavity is provided with a second flow guide hole;
the outlet of the first diversion hole is connected to one corner of the pouring area of the tundish, and the outlet of the second diversion hole is connected to the other corner of the pouring area of the tundish.
In the above scheme, the opening direction of the diversion hole is the horizontal direction.
In the above scheme, the height of the flow guide hole is at least one sixth of the height of the inner cavity; the length of the diversion hole is at least one time of the height of the inner cavity.
In the above scheme, the shape of the cross section of the diversion hole includes: square, triangular, circular, and rectangular.
In the above scheme, the inner cavity is cylindrical.
The embodiment of the utility model provides a tundish current stabilizer is connected with the tundish, the current stabilizer includes: a diversion hole and an inner cavity; the flow guide hole is formed in the bottom of the inner cavity; the inner cavity is connected with the tundish through the diversion holes, so that the molten steel flows into an injection area of the tundish through the diversion holes; therefore, the upward return flow of the molten steel in the flow stabilizer is effectively divided, the impact force of the molten steel on the corner of the pouring area of the tundish is enhanced, the proportion of the dead zone of the corner of the pouring area of the tundish is reduced, the time of the molten steel reaching the free liquid level is prolonged, the liquid level fluctuation and slag entrapment probability are reduced, the inclusion percent of pass is improved, and the quality of the molten steel is ensured.
Drawings
Fig. 1 is an overall structural schematic diagram of a tundish current regulator provided by an embodiment of the present invention.
Description of reference numerals:
11-diversion holes; 12-lumen; 111-a first flow guiding hole; 112-second diversion holes.
Detailed Description
In order to better understand the technical scheme of the utility model, the concept of the tundish is introduced first. The tundish is a transition container connecting the steel ladle and the continuous casting crystallizer, bears basic tasks of receiving, distributing and rhythm buffering of molten steel, has the functions of uniformly mixing the temperature and the components of the molten steel, promoting inclusions to float upwards and the like, and is important equipment for improving the yield and the quality of steel. The structure of the tundish is as follows: one side is the injection area and the other side is the pouring area. Generally, a flow stabilizer is used in an injection area to stabilize the flow of molten steel in the injection area of a tundish, prevent steel slag from being involved in the molten steel to cause quality defects in a continuous casting billet, promote inclusions to float upwards and ensure the metallurgical effect of the tundish. However, the conventional flow stabilizer causes the molten steel to return to a free liquid surface after being poured into the flow stabilizer in the tundish, so that the impact of molten steel pouring flow on the boundary of the tundish corner is cut off, the molten steel flow velocity of two corners of a pouring area of the tundish is small and becomes a dead zone, and then the pouring area is subjected to the upward return action of the molten steel to form turbulent flow to generate slag entrapment, so that the molten steel quality is influenced.
Based on this, in the various embodiments of the present invention, a tundish current stabilizer is provided, which is connected to the tundish, the current stabilizer includes: a diversion hole and an inner cavity; the flow guide hole is formed in the bottom of the inner cavity; the inner cavity is connected with the tundish through the diversion holes, so that the molten steel flows into the injection area of the tundish through the diversion holes.
The technical solution of the present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
The embodiment of the utility model provides a tundish current stabilizer, as shown in figure 1, the current stabilizer includes: a diversion hole 11 and an inner cavity 12; the diversion hole 11 is arranged at the bottom of the inner cavity 12; the inner cavity 12 is connected with the tundish through the guide holes 11, so that the molten steel flows into an injection area of the tundish through the guide holes 11.
Specifically, the guide hole 11 includes: a first guide hole 111 and a second guide hole 112; wherein,
a first diversion hole 111 is formed in one side of the bottom of the inner cavity 12, and a second diversion hole 112 is formed in the other side of the bottom of the inner cavity 12.
Here, the inner cavity 12 is a cavity structure composed of a circular truncated cone and a cylinder, and the opening direction of the diversion hole 11 is a horizontal direction or a slightly downward inclined direction; wherein the inclination angle is not more than 15 °.
When ferrous metallurgy is carried out, the flow stabilizer is arranged right below a tundish water injection area, so that the outlet of the first diversion hole 111 is connected to one corner of the tundish injection area, and the outlet of the second diversion hole 112 is connected to the other corner of the tundish injection area.
Here, the heights of the first and second guide holes 111 and 112 are one sixth to one third of the height of the inner cavity 12; the lengths of the first flow guide hole 111 and the second flow guide hole 112 are 1 to 1.5 times of the height of the inner cavity 12, and when molten steel flows into the corner of the pouring area of the tundish through the first flow guide hole 111 and the second flow guide hole 112, the impact force of the molten steel on the corner of the pouring area of the tundish can be enhanced, so that the dead zone of the corner of the pouring area can be effectively reduced, the path of the molten steel reaching the free liquid level is prolonged, and slag entrapment is prevented. The specific length and width of the first flow guiding hole 111 and the second flow guiding hole 112 may be set according to actual conditions.
In addition, the cross-sectional shapes of the first guide holes 111 and the second guide holes 112 may include: square, triangular, circular, rectangular, polygonal, etc.
The tundish current stabilizer provided by the embodiment of the utility model can reduce the dead zone proportion of the corner part of the tundish injection area and make the molten steel component and the temperature more uniform due to the addition of two flow guide holes at the bottom of the cavity of the current stabilizer; as the upward steel flow of the molten steel in the flow stabilizer is effectively shunted, the path of the molten steel reaching the free liquid level is prolonged, the stable flow control effect can be ensured, and the fluctuation of the liquid level and slag entrapment are reduced.
During practical application, through using traditional current regulator and to a certain steel mill casting machine the utility model provides a flow field contrast calculation of middle package current regulator can obviously obtain the use the embodiment of the utility model provides a during the middle package current regulator, the middle package is annotated and is flowed regional bight speed and increased 2 times, has obviously reduced bight blind spot proportion. The embodiment of the utility model provides a tundish current stabilizer simple structure, spreading value is high.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. A tundish current regulator is connected with a tundish, and is characterized in that the current regulator comprises: a diversion hole and an inner cavity; wherein,
the flow guide hole is arranged at the bottom of the inner cavity;
the inner cavity is connected with the tundish through the diversion holes, so that the molten steel flows into the injection area of the tundish through the diversion holes.
2. The flow stabilizer of claim 1, wherein the flow guide hole comprises:
the first flow guide hole is formed in one side of the bottom of the inner cavity;
the other side of the bottom of the inner cavity is provided with a second flow guide hole;
the outlet of the first diversion hole is connected to one corner of the pouring area of the tundish, and the outlet of the second diversion hole is connected to the other corner of the pouring area of the tundish.
3. The flow stabilizer according to claim 1 or 2, wherein the opening direction of the flow guide hole is a horizontal direction.
4. The flow stabilizer according to claim 1 or 2, wherein the height of the flow guide hole is at least one sixth of the height of the inner cavity; the length of the diversion hole is at least one time of the height of the inner cavity.
5. The flow stabilizer of claim 1 or 2, wherein the shape of the deflector orifice cross-section comprises: square, triangular, circular, and rectangular.
6. The flow stabilizer of claim 1 or 2, wherein the inner cavity is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593859.3U CN204108297U (en) | 2014-10-14 | 2014-10-14 | A kind of tundish current stabilizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593859.3U CN204108297U (en) | 2014-10-14 | 2014-10-14 | A kind of tundish current stabilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204108297U true CN204108297U (en) | 2015-01-21 |
Family
ID=52325655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593859.3U Expired - Fee Related CN204108297U (en) | 2014-10-14 | 2014-10-14 | A kind of tundish current stabilizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204108297U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985148A (en) * | 2015-06-03 | 2015-10-21 | 辽宁科技大学 | Tundish turbulence inhibitor for inhibiting short circuit current |
| TWI615219B (en) * | 2016-12-28 | 2018-02-21 | China Steel Corp | Diversion brick |
-
2014
- 2014-10-14 CN CN201420593859.3U patent/CN204108297U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104985148A (en) * | 2015-06-03 | 2015-10-21 | 辽宁科技大学 | Tundish turbulence inhibitor for inhibiting short circuit current |
| TWI615219B (en) * | 2016-12-28 | 2018-02-21 | China Steel Corp | Diversion brick |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee after: SHOUGANG GROUP Co.,Ltd. Address before: 100041 Shijingshan Road, Beijing, No. 68, No. Patentee before: SHOUGANG Corp. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150121 |