CN104275480A - Submerged nozzle - Google Patents
Submerged nozzle Download PDFInfo
- Publication number
- CN104275480A CN104275480A CN201310281299.8A CN201310281299A CN104275480A CN 104275480 A CN104275480 A CN 104275480A CN 201310281299 A CN201310281299 A CN 201310281299A CN 104275480 A CN104275480 A CN 104275480A
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- CN
- China
- Prior art keywords
- molten steel
- runner
- steel
- annular boss
- diameter
- Prior art date
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a submerged nozzle. The submerged nozzle comprises a body, a molten steel runner and a steel outlet, wherein the body is provided with the molten steel runner and the steel outlet, and at least one annular boss is arranged on the inner wall of the molten steel runner. Due to the fact that the molten steel runner of the submerged nozzle is provided with the annular bosses, and the diameter of a through hole formed by the annular bosses is smaller than the diameter of the molten steel runner, the flow path, flow state and flow speed of molten steel can be changed during actual application, steel flow in the runner of the submerged nozzle is corrected, influence of throttling and bias current of a sliding plate is eliminated, a stagnant area is eliminated, the possibility of plugging is reduced, the state of steel flow in a crystallizer is improved, a molten steel flow field is stabilized, floating of inclusion particles and bubbles is facilitated, and the quality of continuously cast steel billets is improved.
Description
?
Technical field
The present invention relates to a kind of refractory for continuous casting, particularly a kind of immersion water gap for continuously casting.
Background technology
In continuous casting process operating process, the important function of submersed nozzle is that a molten steel is delivered in crystallizer reposefully, traditional submersed nozzle molten steel runner is straight barrel type, this submersed nozzle is in actual application, due to the throttling action of slide plate, the flow velocity of molten steel in submersed nozzle molten steel runner there occurs change, forms the irregular flowing of molten steel, thus disturb the flowing of molten steel in crystallizer, and then have impact on the quality of continuous casting steel billet.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of novel submersed nozzle, the technical scheme that it adopts is: a kind of submersed nozzle, comprise body, be positioned at molten steel runner on body and tapping hole, it is characterized in that: described molten steel runner inner wall is provided with at least one annular boss, and the through-hole diameter that described annular boss is formed is less than the diameter of molten steel runner.
The further technical characterstic of the present invention is:
The through-hole diameter 10-30mm less of the diameter of molten steel runner that described annular boss is formed.
Described annular boss and submersed nozzle body are monolithic construction.
The longitudinal inwall of described tapping hole and molten steel runner tangent.
The invention has the beneficial effects as follows: owing to being provided with at least one annular boss on the molten steel runner of submersed nozzle, therefore molten steel flow path, fluidised form and flow velocity can be changed in actual applications, steel stream in submersed nozzle runner is corrected, eliminate the impact of slide plate throttling bias current, eliminate stagnant area, reduce blocking, improve the steel stream mode in crystallizer, stabilized steel water flow field, is conducive to the floating of inclusion particle and bubble, improves the quality of continuous casting steel billet.
Accompanying drawing explanation
Fig. 1 is one embodiment of the invention structure sectional view;
Fig. 2 is another embodiment of the present invention structure sectional view;
Fig. 3 is the cutaway view Amplified image in A-A direction in Fig. 2.
Detailed description of the invention
Embodiment one:
As shown in Figure 1, a kind of submersed nozzle, comprise body 1, be positioned at molten steel runner 2 on body and tapping hole 3, wherein said molten steel runner inner wall is provided with one annular boss 4, in the present embodiment, the through-hole diameter 13mm less of the diameter of molten steel runner 2 that described annular boss 4 is formed, and described annular boss 4 and submersed nozzle body 1 are monolithic construction.In certain practical application, the through-hole diameter that described annular boss 4 is formed also can than the little 10mm of the diameter of molten steel runner, 15 mm, 20 mm, 25 mm or 30mm.
In the present embodiment, owing to being provided with one annular boss 4 on the molten steel runner 2 of submersed nozzle, and the through-hole diameter that described annular boss 4 is formed is less than the diameter of molten steel runner 2, therefore molten steel flow path, fluidised form and flow velocity can be changed in actual applications, steel stream in submersed nozzle molten steel runner 2 is corrected, eliminate the impact of slide plate throttling bias current, eliminate stagnant area, reduce blocking, improve the steel stream mode in crystallizer, stabilized steel water flow field, is conducive to the floating of inclusion particle and bubble, improves the quality of continuous casting steel billet.
Embodiment two:
As shown in Figure 2, a kind of submersed nozzle, comprise body 1, be positioned at molten steel runner 2 on body and tapping hole 3, wherein said molten steel runner inner wall is provided with twice annular boss 4, in the present embodiment, the through-hole diameter that described twice annular boss 4 is formed is equal, and 13mm less of the diameter of molten steel runner 2, and described annular boss 4 and submersed nozzle body 1 are monolithic construction.In certain practical application, described annular boss 4 can arrange three roads, four roads or more, and the through-hole diameter that formed of annular boss 4 also can than the little 10mm of the diameter of molten steel runner, 15 mm, 20 mm, 25 mm or 30mm, and the through-hole diameter that per pass annular boss 4 is formed can not wait.In addition, in the present embodiment, as shown in Figure 3, the longitudinal inwall of tapping hole 3 301,302 and molten steel runner 2 tangent.
In the present embodiment, owing to being provided with twice annular boss 4 on the molten steel runner 2 of submersed nozzle, and the through-hole diameter that described annular boss 4 is formed is less than the diameter of molten steel runner 2, therefore repeatedly can be corrected the bias current of self molten steel runner 2 by the change of molten steel flow path in actual applications, change molten steel fluidised form and flow velocity simultaneously, successful, therefore the impact of slide plate throttling bias current can be eliminated, eliminate stagnant area, reduce blocking, improve the steel stream mode in crystallizer, stabilized steel water flow field, be conducive to the floating of inclusion particle and bubble, improve the quality of continuous casting steel billet.In addition due to the longitudinal inwall of tapping hole 3 301,302 and molten steel runner 2 tangent, this connection is more level and smooth, more steady when therefore steel stream flows through tapping hole 3, more easily reduces blocking, improve the steel stream mode in crystallizer, thus improve the quality of continuous casting steel billet further.
Although describe detailed description of the invention herein, coverage of the present invention is not limited thereto.All technical schemes that the present invention falls in fact within the scope of the claims under containing all instructions on literal or in equivalents.Protection scope of the present invention is as the criterion with claims.
Claims (4)
1. a submersed nozzle, comprises body, is positioned at molten steel runner on body and tapping hole, it is characterized in that: described molten steel runner inner wall is provided with at least one annular boss, and the through-hole diameter that described annular boss is formed is less than the diameter of molten steel runner.
2. submersed nozzle as claimed in claim 1, is characterized in that: the through-hole diameter 10-30mm less of the diameter of molten steel runner that described annular boss is formed.
3. submersed nozzle as claimed in claim 1 or 2, is characterized in that: described annular boss and submersed nozzle body are monolithic construction.
4. submersed nozzle as claimed in claim 3, is characterized in that: the longitudinal inwall of described tapping hole and molten steel runner tangent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310281299.8A CN104275480A (en) | 2013-07-05 | 2013-07-05 | Submerged nozzle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310281299.8A CN104275480A (en) | 2013-07-05 | 2013-07-05 | Submerged nozzle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104275480A true CN104275480A (en) | 2015-01-14 |
Family
ID=52251094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310281299.8A Pending CN104275480A (en) | 2013-07-05 | 2013-07-05 | Submerged nozzle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104275480A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107983943A (en) * | 2017-12-07 | 2018-05-04 | 安徽工业大学 | A kind of system and method for improving tundish Cleanliness of Molten Steel under unstable state state |
| CN109396410A (en) * | 2017-08-18 | 2019-03-01 | 江苏奥能耐火材料有限公司 | A kind of continuous casting current stabilization mouth of a river and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112656A (en) * | 1994-10-12 | 1996-05-07 | Nippon Steel Corp | Nozzle for continuously casting steel |
| CN101189088A (en) * | 2005-05-02 | 2008-05-28 | 朝鲜耐火株式会社 | Submerged entry nozzle for continuous casting |
| CN201346620Y (en) * | 2009-01-06 | 2009-11-18 | 首钢总公司 | Blockage proof submerged nozzle for square billet continuous casting |
| CN101890495A (en) * | 2010-06-04 | 2010-11-24 | 北京科技大学 | Pinwheel-shaped and tree root-shaped quarter section tangential water gap for continuous casting |
| CN203030884U (en) * | 2013-01-01 | 2013-07-03 | 北京利尔高温材料股份有限公司 | Multihole type immersive type water port for continuous casting |
| CN203401077U (en) * | 2013-07-05 | 2014-01-22 | 苏州宝明高温陶瓷有限公司 | Submersed nozzle |
-
2013
- 2013-07-05 CN CN201310281299.8A patent/CN104275480A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08112656A (en) * | 1994-10-12 | 1996-05-07 | Nippon Steel Corp | Nozzle for continuously casting steel |
| CN101189088A (en) * | 2005-05-02 | 2008-05-28 | 朝鲜耐火株式会社 | Submerged entry nozzle for continuous casting |
| CN201346620Y (en) * | 2009-01-06 | 2009-11-18 | 首钢总公司 | Blockage proof submerged nozzle for square billet continuous casting |
| CN101890495A (en) * | 2010-06-04 | 2010-11-24 | 北京科技大学 | Pinwheel-shaped and tree root-shaped quarter section tangential water gap for continuous casting |
| CN203030884U (en) * | 2013-01-01 | 2013-07-03 | 北京利尔高温材料股份有限公司 | Multihole type immersive type water port for continuous casting |
| CN203401077U (en) * | 2013-07-05 | 2014-01-22 | 苏州宝明高温陶瓷有限公司 | Submersed nozzle |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109396410A (en) * | 2017-08-18 | 2019-03-01 | 江苏奥能耐火材料有限公司 | A kind of continuous casting current stabilization mouth of a river and preparation method thereof |
| CN107983943A (en) * | 2017-12-07 | 2018-05-04 | 安徽工业大学 | A kind of system and method for improving tundish Cleanliness of Molten Steel under unstable state state |
| CN107983943B (en) * | 2017-12-07 | 2019-07-05 | 安徽工业大学 | A kind of system and method improving tundish Cleanliness of Molten Steel under unstable state state |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150114 |