CN208628417U - A kind of list flowing plate base tundish flow control element - Google Patents
A kind of list flowing plate base tundish flow control element Download PDFInfo
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- CN208628417U CN208628417U CN201821058621.5U CN201821058621U CN208628417U CN 208628417 U CN208628417 U CN 208628417U CN 201821058621 U CN201821058621 U CN 201821058621U CN 208628417 U CN208628417 U CN 208628417U
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Abstract
The utility model relates to continuous casting technology fields, specifically provide a kind of single flowing plate base tundish flow control element, comprising: tundish ontology；The tundish bodies top is equipped with long nozzle, and shock plate is arranged on the bottom face Ying Gang of the tundish；Baffle body is arranged in the long nozzle side, and the other side is successively arranged one piece of slag weir and dam A and dam B；The slag weir is suspended vacantly at the top of tundish without deflector hole, bottom, and the slag weir and tundish bottom distance D1 are 100-300mm；The dam A and dam B shape are different, and the dam A is higher than dam B.Due to reasonable disposition slag weir and two dams and flow straightener etc., the flowing so that molten steel raises up extends flow path, to extend its residence time in tundish, so that pouring area molten steel flow is more steady, is conducive to the layering of slag and molten steel.
Description
Technical field
The utility model relates to continuous casting technology field, especially a kind of single stream tundish flow control element.
Background technique
With the demand that the supply side of the development of Ferrous Metallurgy technology, and country's proposition is reformed, how to smelt out more
Pure high-quality steel becomes the critical issue of major iron and steel enterprise's urgent need to resolve.
Tundish is the refractory material containers used in mini-mill steelmaking, receives to pour the steel to get off from ladle first
Then water is assigned in each crystallizer by middle water containing opening again.Tundish generally comprises the flow controls such as slag weir and dam member
Part, slag weir are built in the dry materials of impact zone, and the pouring area of slag weir two sides is arranged in dam；Slag weir separates tundish
At two regions, makes to open molten steel when pouring and pouring area is entered by foot passage again after mixing in impact zone, and will be big
Part Slag inclusion is blocked within tundish impact area, and dam can reduce the phenomenon that tying cold steel generation.
Currently, tundish has become the crucial metallurgical reaction for improving continuous casting billet quality.By being arranged in tundish
Various flow control elements optimize Tundish Flow Field characteristic, can achieve and promote inclusion floating, uniform liquid steel temperature and other effects.But
It is that this makes many steel mills blindly add flow control element in tundish, not only does not have the effect of optimization steel quality sometimes,
It will increase erosion to refractory material instead or form dead zone, cause field trash to increase, the adverse effect such as slag, the cold steel of knot,
The result is just the contrary for it.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model provides a kind of single flowing plate base tundish flow control element.
The technical solution that the utility model is taken to achieve the above object are as follows:
A kind of list flowing plate base tundish flow control element, which includes tundish ontology；Tundish ontology top
Portion is equipped with long nozzle, and shock plate is arranged on the bottom face Ying Gang of the tundish；Baffle body is arranged in the long nozzle side, another
Side is successively arranged one piece of slag weir and dam A and dam B；The slag weir is suspended vacantly without deflector hole, bottom in tundish
Top, the slag weir and tundish bottom distance D1 are 100-300mm；The dam A and dam B shape are different, the gear
Dam A is higher than dam B.
Preferably, the slag weir and tundish bottom distance D1 are 150-200mm.
As a further improvement, the slag weir and the dam A horizontal space D2 are 100-300mm.Preferably, described
Slag weir and the dam A horizontal space D2 are 150mm.
As a further improvement, the dam A height is higher than D1 20-70mm.Preferably, the dam A height is higher than D1
50mm。
As a further improvement, the dam A and the mutual corresponding face dam B cannot be parallel to each other, the dam A and gear
The mutual corresponding face dam B and tundish bottom angle are 91 ° -135 °.
As a further improvement, the tundish ontology packet bottom meets and also sets up flow straightener on steel face.
As a further improvement, the slag weir and dam A and dam B are using high-grade refractory material.
Single flowing plate base tundish flow control element of the utility model can be by biggish turbulent flow due to being provided with slag weir
Dynamic control enhances the mixing effect of molten steel, is conducive to the ingredient and temperature of uniform molten steel, is also beneficial to field trash in beam area
Collision grow up.
When molten steel is flowed from the bottom of slag weir to pouring area, dam A changes the flow direction of molten steel, forces on molten steel
Flowing is raised, flow path is extended, its residence time in tundish can be extended, so that pouring area molten steel flow is relatively flat
Surely, be conducive to the layering of slag and molten steel.
And the main flow of packet long nozzle direction flowing concentrates near liquid level towards the middle, and what Collision coagulation generated is mingled with
Object is closer apart from slag liquid face, that is to say, that field trash climb is shorter, it is easy to it is adsorbed by the slag on slag liquid face, thus, it reaches
To the purpose of the field trash in removal molten steel.And between two dams of tundish bottom, due to the Involving velocity of main flow, out
The now reflux in packet beam area direction towards the middle forms race way, and the race way flow velocity is slow, and the aggregation for being conducive to field trash is raw
At.
And it after tundish packet bottom meets and a flow straightener is arranged on steel face (turbulence inhibitor), can manufacture on apparent
Flowing is raised, extends residence time of the molten steel in tundish, is conducive to the polymerization and removal of field trash, while slowing down molten steel
Impact, splash and as impact and caused by the speed that fluctuates and flow up, the probability for reducing molten steel slag, being involved in gas,
To reduce the secondary oxidation of molten steel, in addition, flow straightener is more prominent to the mixing effect of molten steel, be conducive to uniform molten steel
Ingredient and molten steel temperature, additionally it is possible to reduce to the washing away of tundish beam area refractory material, corrode, slow down the life of " conflux vortex "
At.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model list flowing plate base tundish flow control element；
Fig. 2 is the longitudinal cross-section flow field schematic diagram of the utility model list flowing plate base tundish flow control element molten steel.
Specific embodiment
A detailed description is done to specific embodiment of the present utility model with reference to the accompanying drawing.
As shown in Figure 1, a kind of single flowing plate base tundish flow control element of the utility model, which includes tundish
Ontology 1；The tundish bodies top is equipped with long nozzle 2, and shock plate is arranged on the bottom face Ying Gang of the tundish；It is described
Baffle body is arranged in long nozzle side, and the other side is successively arranged one piece of slag weir 3 and dam A4 and dam B5；3 nothing of slag weir
Deflector hole, bottom are suspended vacantly at the top of tundish, and the slag weir 3 and tundish bottom distance D1 are 100-300mm；Institute
It states dam A4 and dam B5 shape is different, the dam A4 is higher than dam B5.
Preferably, the slag weir 3 and tundish bottom distance D1 are 150-200mm.
As a further improvement, the slag weir 3 and the dam A4 horizontal space D2 are 100-300mm.Preferably, institute
It states slag weir 3 and the dam A4 horizontal space D2 is 150mm.
As a further improvement, the dam A4 height is higher than D1 20-70mm.Preferably, the dam A4 height is higher than
D1 50mm。
As a further improvement, the dam A4 and the mutual corresponding face dam B5 cannot be parallel to each other, the dam A4
It is 91 ° -135 ° with the mutual corresponding face dam B5 and tundish bottom angle.
As a further improvement, the tundish ontology packet bottom meets and also sets up flow straightener 6 on steel face.
As a further improvement, the slag weir 3 and dam A4 and dam B5 are using high-grade refractory material.
As shown in Fig. 2, molten steel impacts tundish bottom by long nozzle 2 with biggish speed, then along packet bottom to four
All diverging flows.It is flowed up after flowing to front and back wall surface along wall surface, is forming small recirculating zone at the wall surface of front and back.
Slag weir 3, which controls biggish turbulent flow, enhances the mixing effect of molten steel in beam area, is conducive to the ingredient of uniform molten steel
And temperature, the collision for being also beneficial to field trash are grown up.Molten steel is flowed from the bottom of slag weir 3 to pouring area, and dam A4 is changed
The flow direction of molten steel forces molten steel to raise up flowing, flow path is extended, when can extend its stop in tundish
Between, so that pouring area molten steel flow is more steady, be conducive to the layering of slag and molten steel.
And the main flow of packet long nozzle direction flowing concentrates near liquid level towards the middle, and what Collision coagulation generated is mingled with
Object is closer apart from slag liquid face, that is to say, that field trash climb is shorter, it is easy to it is adsorbed by the slag on slag liquid face, thus, it reaches
To the purpose of the field trash in removal molten steel.And between two dams of tundish bottom, due to the Involving velocity of main flow, out
The now reflux in packet beam area direction towards the middle forms race way, and the race way flow velocity is slow, and the aggregation for being conducive to field trash is raw
At.
Scheme as a further improvement meets one flow straightener 6 (turbulence inhibitor) of setting on steel face at tundish packet bottom,
And flow straightener 6 can manufacture the flowing that significantly raises up, and extend residence time of the molten steel in tundish, be conducive to the poly- of field trash
Close and removal, at the same slow down the impact of molten steel, splash and as impact and caused by the speed that fluctuates and flow up, reduce
Molten steel slag, the probability for being involved in gas, thus, the secondary oxidation of molten steel is reduced, in addition, flow straightener 6 makees the mixing of molten steel
With more protruding, be conducive to uniform molten steel component and molten steel temperature, additionally it is possible to which tundish beam area refractory material is rushed in reduction
Brush corrodes, and slows down the generation of " conflux vortex ".
Claims (8)
1. a kind of list flowing plate base tundish flow control element characterized by comprising
Tundish ontology；
The tundish bodies top is equipped with long nozzle, and shock plate is arranged on the bottom face Ying Gang of the tundish；
Baffle body is arranged in the long nozzle side, and the other side is successively arranged one piece of slag weir and dam A and dam B；
The slag weir is suspended vacantly at the top of tundish without deflector hole, bottom, the slag weir and tundish bottom distance
D1 is 100-300mm；
The dam A and dam B shape are different, and the dam A is higher than dam B.
2. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The slag weir and tundish bottom distance D1 are 150-200mm.
3. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The slag weir and the dam A horizontal space D2 are 100-300mm.
4. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The slag weir and the dam A horizontal space D2 are 150mm.
5. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The dam A height is higher than D1 20-70mm.
6. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The dam A height is higher than D1 50mm.
7. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The dam A and the mutual corresponding face dam B cannot be parallel to each other, and the dam A and the mutual corresponding face dam B are in
Between packet bottom angle be 91 ° -135 °.
8. list flowing plate base tundish flow control element according to claim 1, it is characterised in that:
The tundish ontology packet bottom, which is met, also sets up flow straightener on steel face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058621.5U CN208628417U (en) | 2018-07-05 | 2018-07-05 | A kind of list flowing plate base tundish flow control element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821058621.5U CN208628417U (en) | 2018-07-05 | 2018-07-05 | A kind of list flowing plate base tundish flow control element |
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| Publication Number | Publication Date |
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| CN208628417U true CN208628417U (en) | 2019-03-22 |
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| CN201821058621.5U Active CN208628417U (en) | 2018-07-05 | 2018-07-05 | A kind of list flowing plate base tundish flow control element |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399660A (en) * | 2021-06-24 | 2021-09-17 | 江苏沙钢集团有限公司 | Flow distribution type tundish and pouring system for thin strip continuous casting |
-
2018
- 2018-07-05 CN CN201821058621.5U patent/CN208628417U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113399660A (en) * | 2021-06-24 | 2021-09-17 | 江苏沙钢集团有限公司 | Flow distribution type tundish and pouring system for thin strip continuous casting |
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