CN201376085Y - Tundish dual effect flow-stabilizing cushion - Google Patents
Tundish dual effect flow-stabilizing cushion Download PDFInfo
- Publication number
- CN201376085Y CN201376085Y CN200920118163U CN200920118163U CN201376085Y CN 201376085 Y CN201376085 Y CN 201376085Y CN 200920118163 U CN200920118163 U CN 200920118163U CN 200920118163 U CN200920118163 U CN 200920118163U CN 201376085 Y CN201376085 Y CN 201376085Y
- Authority
- CN
- China
- Prior art keywords
- tundish
- molten steel
- inner cavity
- inner chamber
- outlet
- 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.)
- Expired - Fee Related
Links
- 230000009977 dual effect Effects 0.000 title abstract description 4
- 230000000694 effects Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 abstract description 31
- 239000010959 steel Substances 0.000 abstract description 31
- 239000002893 slag Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 238000009749 continuous casting Methods 0.000 description 13
- 238000005516 engineering process Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000011819 refractory material Substances 0.000 description 4
- 230000035939 shock Effects 0.000 description 3
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The utility model discloses a tundish dual effect flow-stabilizing cushion, which comprises a hollow chamber body having a contracted structure with large bottom and small upper opening, the upper end of the body is provided with an outlet, the bottom of the hollow chamber inside the body is also provided with an inner cavity with an inner chamber, the sidewall of the inner cavity is evenly, circumferentially provided with four diversion holes, the upper end of the inner cavity is provided with an inlet and the upper end face of the inner cavity is not higher than the upper end face of the body. The tundish dual effect flow-stabilizing cushion of the utility model is mounted at the bottom of an impact area of a tundish and then tightly combined with an lining material of the tundish, molten steel enters the inner chamber from the inlet of the inner cavity, then rises along outer cavity wall after passing through the diversion holes of the inner chamber and in the end flows out of the outlet, which varies procedures of the molten steel, reduces turbulence and vortex of the molten steel and enhances separation effect of slag; owing to the prolonged staying time of the molten steel, the molten steel within the tundish is even in temperature, thus improving free-opening rate and avoiding blockage of the outlet for molten steel.
Description
Technical field
The utility model relates to the amorphous refractory field, relates in particular to a kind of tundish double effect constant-current pad.
Background technology
Important key equipment of high efficiency continuous casting technology that the continuous casting tundish generally adopts as current international steel industry plays an important role to stabilizing continuous casting production and raising continuous casting billet quality.Therefore, the exploitation of novel refractory relevant with the continuous casting tundish and goods, development are emphasis of metallurgical refractories industry always.Over past ten years, the needs of continuous casting new technology and development of new techniques have been satisfied in continually developing and upgrading of the magnesia slag weir of tundish, liner refractory materials such as (material) and goods.Along with connecting the level of watering, China's continuous casting production improves constantly, the working life of continuous casting tundish working lining prolongs significantly, developed into more than 20 to 30 hours of today from original 5 hours, thus middle job contract effect refractory material and goods have been had higher requirement.The wherein design of tundish constant-current pad, exploitation and production have more and more caused the attention of each associated production producer.In high efficiency continuous casting technology, molten steel is very important from the screening of the structural design at the impact zone position of undertaking tundish greatly and refractory material, because it is concerning the control of tundish turbulent flow, steel stream and the key point that molten steel separates with slag.Over past ten years, experienced from early stage simple shock plate, slag weir etc. by the development that molten steel is entered change behind the tundish stroke route to reach the current stabilization product that separates field trashes such as slag, and developed to the tundish constant-current pad.At present, domestic most iron and steel enterprise is general to adopt traditional continuous casting tundish shock plate, slag weir to carry out subduing of molten steel turbulent flow, but since its structure comparatively simple, improving the flow regime of molten steel, slacken the eddy current energy and self anti-resistance to elevated temperatures of washing away is relatively poor, therefore, the service life of this series products is also shorter, be difficult to reach the continuous casting tundish instructions for use of casting time more than 30 hours, this just makes this class continuous casting tundish shock plate, slag weir be difficult to satisfy large-scale iron and steel enterprise and produces the high variety steel of the continuous casting institute condition demand of raising day by day.Meanwhile, the tundish constant-current pad progressively becomes the fire resistive material product that generally uses when carrying out the control of tundish turbulent flow.
The utility model content
Technical problem to be solved in the utility model just provides a kind of tundish double effect constant-current pad that can improve the slag separating effect, change flow process, the turbulent flow of subduing molten steel and the eddy current of molten steel.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme, the tundish double effect constant-current pad, it is characterized in that: comprise the body that is provided with hollow chamber, the body upper end is provided with outlet, described intrinsic hollow chamber bottom also is provided with the inner chamber body of band inner cavity chamber, and inner chamber body sidewall uniform ring is provided with some tap holes, and the inner chamber body upper end is provided with inlet.
Preferably, described body be the bottom big, go up young, as to be collapsed shape structure.
Preferably, the tap hole of described inner chamber body sidewall is four.
Improved, described inner chamber body upper surface is not higher than the body upper surface.
The utility model uses the dual cavity structural design, molten steel enters inner cavity chamber from the inner chamber body inlet, behind inner cavity chamber's tap hole, flow out along the outer chamber wall rising and from outlet, molten steel is shunted, reduce the mutual impact of molten steel and change the flow field, further improve the turbulent flow and the eddy current of molten steel, have good steady flow result, the slag good separating effect, the steel quality tool improves a lot.The present invention compares with other flow straightener, have the intensity height, anti-ly wash away that resistance to elevated temperatures is good, heat endurance is high, erosion-resisting characteristics, scour resistance be good, characteristics such as obvious prolongation in service life, and, bag stops up in can reducing, improve flow process, the turbulent flow of subduing molten steel and the eddy current of slag separating effect, change molten steel, help improving the molten steel degree of purity.Can prolong simultaneously the heat-insulating shield in the tundish and the life-span of coating, thereby prolong tundish service life.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further described:
Fig. 1 is the vertical view of the utility model tundish double effect constant-current pad;
Fig. 2 is an A-A cutaway view among Fig. 1.
The specific embodiment
As Fig. 1 and Fig. 2, be the utility model tundish double effect constant-current pad, comprise the body 1 that is provided with hollow chamber 11, body 1 is big for the bottom, go up young, as to be collapsed shape structure, body 1 upper end is provided with outlet 12, and described intrinsic hollow chamber 11 bottoms also are provided with the inner chamber body 2 of band inner cavity chamber 21, and inner chamber body 2 sidewall uniform ring are provided with four tap holes 22, inner chamber body 2 upper ends are provided with inlet 23, and described inner chamber body upper surface is not higher than the body upper surface.
The utility model tundish double effect constant-current pad is installed in tundish impact zone bottom, combine closely with the tundish inner lining material, molten steel enters inner cavity chamber from the inner chamber body inlet, flows out along the outer chamber wall rising and from outlet behind inner cavity chamber's tap hole, has changed the flow process of molten steel, subdue the turbulent flow and the eddy current of molten steel, improved the effect that slag separates, because the prolongation of the molten steel time of staying, the liquid steel temperature temperature is even in the middle bag, improve the casting rate of middle bag, avoided the obstruction at the mouth of a river.
Claims (4)
1, tundish double effect constant-current pad, it is characterized in that: comprise the body (1) that is provided with hollow chamber (11), body (1) upper end is provided with outlet (12), hollow chamber (11) bottom in the described body (1) also is provided with the inner chamber body (2) of band inner cavity chamber (21), inner chamber body sidewall uniform ring is provided with some tap holes (22), and the inner chamber body upper end is provided with inlet (23).
2, tundish double effect constant-current pad according to claim 1 is characterized in that: described body be the bottom big, go up young, as to be collapsed shape structure.
3, tundish double effect constant-current pad according to claim 1 and 2 is characterized in that: the tap hole of described inner chamber body sidewall is four.
4, tundish double effect constant-current pad according to claim 1 and 2 is characterized in that: described inner chamber body upper surface is not higher than the body upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920118163U CN201376085Y (en) | 2009-04-21 | 2009-04-21 | Tundish dual effect flow-stabilizing cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920118163U CN201376085Y (en) | 2009-04-21 | 2009-04-21 | Tundish dual effect flow-stabilizing cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201376085Y true CN201376085Y (en) | 2010-01-06 |
Family
ID=41516180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920118163U Expired - Fee Related CN201376085Y (en) | 2009-04-21 | 2009-04-21 | Tundish dual effect flow-stabilizing cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201376085Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917817A (en) * | 2010-07-19 | 2013-02-06 | 里弗雷克特里知识产权两合公司 | Fireproof ceramic impact absorber |
| CN112207268A (en) * | 2020-10-21 | 2021-01-12 | 武汉钢铁有限公司 | Circular vortex-resisting device for bottom of steel ladle |
-
2009
- 2009-04-21 CN CN200920118163U patent/CN201376085Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102917817A (en) * | 2010-07-19 | 2013-02-06 | 里弗雷克特里知识产权两合公司 | Fireproof ceramic impact absorber |
| CN102917817B (en) * | 2010-07-19 | 2015-07-22 | 里弗雷克特里知识产权两合公司 | Fireproof ceramic impact absorber |
| CN112207268A (en) * | 2020-10-21 | 2021-01-12 | 武汉钢铁有限公司 | Circular vortex-resisting device for bottom of steel ladle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100106 Termination date: 20120421 |