CN206253642U - A kind of T-shaped tundish flow control device - Google Patents
A kind of T-shaped tundish flow control device Download PDFInfo
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- CN206253642U CN206253642U CN201621243056.0U CN201621243056U CN206253642U CN 206253642 U CN206253642 U CN 206253642U CN 201621243056 U CN201621243056 U CN 201621243056U CN 206253642 U CN206253642 U CN 206253642U
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- blocking wall
- slag blocking
- tundish
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Abstract
The utility model is related to a kind of T-shaped tundish flow control device, including U-shaped sidewall paneling and V-arrangement slag blocking wall, U-shaped sidewall paneling and V-arrangement slag blocking wall are arranged on the inner side of the containment wall working lining of T-shaped tundish beam impact zone, the open end of U-shaped sidewall paneling is mutually stitched together with the open end of V-arrangement slag blocking wall, all splicing seams carry out embedding using refractory material, the wall of V-arrangement slag blocking wall is provided with multiple pod apertures, the inwall of U-shaped sidewall paneling and V-arrangement slag blocking wall uses step structure wide at the top and narrow at the bottom, the bottom of U-shaped sidewall paneling and V-arrangement slag blocking wall underwrites lining work composition flow control cavity with tundish, it is the inclination accent towards chamber contract at the top of flow control cavity.The simple structure of this flow control device, easy to implement, and low cost, the accuracy of alignment requirement to big bag long nozzle is low, and can effectively reduce the liquid steel level disturbance of T-shaped tundish impact area, reduces slag risk, effectively improves the quality of steel billet.
Description
Technical field
The utility model is related to a kind of flow control device that can reduce T-shaped tundish impact area slag, it is adaptable to which multithread connects
Flow field control in the T-shaped tundish of casting machine, belongs to Ferrous Metallurgy continuous casting technology field.
Background technology
Tundish is one of key equipment of Ferrous Metallurgy continuous casting, which is connected ladle（Also referred to as big bag）And crystallization
Device, is mainly used in accepting molten steel, shunts, depressurizes and go to be mingled with, and realize sequence casting.MOLTEN STEEL FLOW state is shadow in tundish
One of factor of steel inclusion quantity is rung, some quality to the amount of inclusions extremely strict steel grade of requirement is had a strong impact on, such as
Increase wire broken rate etc. of the cord steel in drawing process.The flow control device being arranged in tundish is MOLTEN STEEL FLOW in influence tundish
The principal element of state, in the tundish without flow control device, beam speed causes liquid surface fluctuation big soon, is easily caused slag
Occur, sharply increased the amount of inclusions in steel.
" turbulence inhibitor+V-arrangement slag blocking wall " be in T-shaped tundish frequently with flow control structure, be installed on T-shaped tundish punching
Area is hit, after big bag long nozzle molten steel out suppresses through turbulence inhibitor to tubulence energy, then by leading on V-arrangement slag blocking wall
Discharge orifice flows to each flow export（That is middle water containing opening）.Lot of experiments shows, the use of turbulence inhibitor can reduce T-shaped
The disturbance of Metal in Tundish liquid level, reduces the generation of Metal in Tundish liquid level slag.But in actual production process, because being wrapped greatly
Deviations, tundish deviations when the perpendicularity of long nozzle, bale panoramic tables are turned round, turbulence inhibitor installation site are inclined
The influence of the factors such as difference, it is difficult to ensure that strict centering between big bag long nozzle and turbulence inhibitor.It is rapid in the case where misaligning
Stream controller can not play effective inhibitory action to turbulent flow, or even have the phenomenon of aggravation turbulent flow in regional area, to molten steel liquid
Face is locally caused compared with large disturbances, and the reasonability in its flow field is even not as good as the situation without turbulence inhibitor.Therefore, it is necessary to be directed to T
Type tundish develops a kind of new flow control device, is had with the complexity and energy stream field that realization can meet field condition
Imitate the purpose of control.
Utility model content
The utility model is just being directed to the technical problem for existing in the prior art, there is provided a kind of T-shaped tundish is filled with flow control
Put, the device overall construction design is ingenious, and simple structure is easy to implement, and low cost, using the present apparatus to big bag long nozzle
Accuracy of alignment requirement is relatively low, and can effectively reduce the liquid steel level disturbance of T-shaped tundish beam impact zone, reduces slag wind
Danger, effectively improves the quality of steel billet.
To achieve these goals, the technical solution adopted in the utility model is, a kind of T-shaped tundish flow control device,
Including U-shaped sidewall paneling and V-arrangement slag blocking wall, the U-shaped sidewall paneling and V-arrangement slag blocking wall are arranged on T-shaped tundish beam impact zone
The inner side of containment wall working lining, open end and the open end of V-arrangement slag blocking wall of the U-shaped sidewall paneling are mutually stitched together,
All splicing seams carry out embedding using refractory material, and the wall of the V-arrangement slag blocking wall is provided with multiple pod apertures, the U-shaped side
The inwall of wallboard and V-arrangement slag blocking wall uses step structure wide at the top and narrow at the bottom, the bottom of U-shaped sidewall paneling and V-arrangement slag blocking wall with
Tundish underwrites lining work composition flow control cavity, is the inclination accent towards chamber contract at the top of the flow control cavity.
As it is of the present utility model it is a kind of improve, the inwall working face of the U-shaped sidewall paneling and V-arrangement slag blocking wall it is transversal
Face is shaped as inverted L-shaped, and can prevent steel stream from rising directly impact slag interface along working face causes slag.
As it is of the present utility model it is a kind of improve, the U-shaped sidewall paneling be made magnesia of an one cast molding or
The calcareous prefabricated component of magnesium.
Used as a kind of improvement of the present utility model, the wall of the V-arrangement slag blocking wall is using the casting of anti-erosion refractory material
Into the pod apertures are arranged on the bottom of V-arrangement slag blocking wall, in the both sides cavity wall of flow control cavity.
Used as a kind of improvement of the present utility model, the inwall working face of the U-shaped sidewall paneling and V-arrangement slag blocking wall is including upper
Working face, intermediate transition surface and lower working face, the intermediate transition surface are inclined between working face and lower working face.
Used as a kind of improvement of the present utility model, the vertical height of the upper working face is 300 ~ 600mm, the lower work
The vertical height in face is 300 ~ 600mm.
As it is of the present utility model it is a kind of improve, the thickness difference between the upper working face and lower working face for 40 ~
100mm。
As it is of the present utility model it is a kind of improve, the angle of inclination of the inclination accent at the top of the flow control cavity for 30 ~
60°。
As a kind of improvement of the present utility model, 3 pod apertures are equipped with every piece of wall of the V-arrangement slag blocking wall.
Used as a kind of improvement of the present utility model, in big Baogang's water casting process, the big bag long nozzle is arranged on U
In the U-shaped region that shape sidewall paneling is surrounded.
Relative to prior art, advantage of the present utility model is as follows, and 1）Overall construction design is ingenious, simple structure, to applying
Work required precision is not high, and dismounting assembling convenient maintenance and replacement, cost is relatively low, can be prevented effectively from T-shaped tundish beam impact zone volume
The generation of slag, while the negative effect that existing turbulence inhibitor is misaligned with big bag long nozzle is it also avoid, it is easy to use and reliable；
2）Due to being applied in combination the U-shaped sidewall paneling and V-arrangement slag blocking wall that inwall is step structure wide at the top and narrow at the bottom, and both is interior
The shape of cross section of wall working face is in inverted L-shaped, so that the bottom of U-shaped sidewall paneling and V-arrangement slag blocking wall and tundish bag basic skill or training
Make lining composition flow control cavity, can effectively prevent high-speed steel stream from rising directly impact slag interface along straight working face causes slag；
3）Because U-shaped sidewall paneling and V-arrangement slag blocking wall use " inverted L " shape prefabricated component, with it is upper thick and lower thin the characteristics of, so as to by U-shaped side
The slag lining of wallboard and V-arrangement pushing off the slag inner wall（Refer to the resistance to material position being in contact with Tundish Slag when tundish is used, the portion
Position is vulnerable to the erosion of Tundish Slag）It is thickening, effectively extend the service life of T-shaped tundish.
Brief description of the drawings
The flow control apparatus structure schematic diagram that Fig. 1 is used by existing T-shaped tundish.
Fig. 2 is the A-A cross-sectional views in Fig. 1.
Fig. 3 is MOLTEN STEEL FLOW in T-shaped tundish in the case of big bag long nozzle in the prior art and the non-centering of turbulence inhibitor
Schematic diagram.
Fig. 4 is the position view of big bag long nozzle and turbulence inhibitor in Fig. 3.
The structural representation of the flow control device that Fig. 5 is proposed by the utility model.
Fig. 6 is the A-A cross-sectional views of Fig. 5.
Fig. 7 is the schematic diagram using MOLTEN STEEL FLOW in T-shaped tundish after flow control device of the present utility model.
In figure：1- tundish containment wall working linings, 2- slag blocking walls, 3- turbulence inhibitors, 4- pod apertures, 5- middle water containing openings,
The big bag long nozzles of 6-, 7- tundish covering fluxs, 8- slags, 9-U shape sidewall panelings, 10-V shape slag blocking walls, 11- flow control cavitys, 12- inclines
Oblique accent, 13- tundish is underwrited lining work.
Specific embodiment
In order to deepen, to understanding and cognition of the present utility model, the utility model to be further described below in conjunction with the accompanying drawings
And introduction.
Embodiment 1：Such as Fig. 5-Fig. 6, a kind of T-shaped tundish flow control device, including U-shaped sidewall paneling 9 and V-arrangement slag blocking wall
10, the U-shaped sidewall paneling 9 and V-arrangement slag blocking wall 10 are installed in the inner side of the containment wall working lining 1 of T-shaped tundish beam impact zone.Institute
The open end and the open end of V-arrangement slag blocking wall 10 for stating U-shaped sidewall paneling 9 are mutually stitched together, the U-shaped sidewall paneling 9 and V
The bottom of shape slag blocking wall 10 underwrites lining work 13 and is brought into close contact with tundish, and all splicing seams and laminating seam are entered using refractory material
Row embedding.Selected refractory material is selected according to different steel grades, general many using magnesia or magnesite-dolomite refractories.Institute
The wall for stating V-arrangement slag blocking wall 10 is provided with multiple pod apertures 4, for water conservancy diversion molten steel.The U-shaped sidewall paneling 9 and V-arrangement slag blocking wall 10
Inwall use step structure wide at the top and narrow at the bottom, the bottom of U-shaped sidewall paneling 9 and V-arrangement slag blocking wall 10 and the bag bottom of tundish
The composition flow control of working lining 13 cavity 11, flow control cavity 11 is similar to existing turbulence inhibitor, can play similar effect.Institute
The top for stating flow control cavity 11 is the inclination accent 12 towards chamber contract, and inclining accent 12 can suppress in flow control chamber high-speed steel stream
In body 11, so as to steel stream can be prevented effectively from and be risen to slag interface and be produced slag.
Embodiment 2：Such as Fig. 5-Fig. 6, as it is of the present utility model it is a kind of improve, the U-shaped sidewall paneling 9 and V-arrangement slag blocking wall
10 inwall working face includes upper working face, intermediate transition surface and lower working face, and the intermediate transition surface is inclined at work
Make between face and lower working face.Remaining structure and advantage are identical with embodiment 1.
Embodiment 3：Such as Fig. 5-Fig. 6, improved as one kind of the present utility model, the vertical height H2 of the upper working face
It is 300 ~ 600mm, the vertical height H1 of the lower working face is 300 ~ 600mm.In actual design process, two vertical heights
Numerical value can be according to cast parameters such as the speed of depth and continuous casting throwing of the position of big bag long nozzle 6 and its embedment molten steel by water
Mould is tested or numerical simulation calculation determines, this design can reduce T-shaped tundish beam impact zone slag.Remaining structure and excellent
Point is identical with embodiment 2.
Embodiment 4：Such as Fig. 5-Fig. 6, as it is of the present utility model it is a kind of improve, the upper working face and lower working face it
Between thickness difference D be 40 ~ 100mm.Likewise, the thickness difference numerical value is also position and its embedment steel according to big bag long nozzle 6
The cast such as the depth of liquid and the speed of continuous casting throwing parameter is determined by hydraulic model trial or numerical simulation calculation.Remaining structure and
Advantage is identical with embodiment 3.
Embodiment 5：Such as Fig. 5-Fig. 6, improved as one kind of the present utility model, the inclination at the top of the flow control cavity 11
The angle of inclination a of accent 12 is 30 ~ 60 °.Likewise, position and its embedment steel of the angle parameter also according to big bag long nozzle 6
The cast such as the depth of liquid and the speed of continuous casting throwing parameter is determined by hydraulic model trial or numerical simulation calculation.Remaining structure and
Advantage is identical with embodiment 4.
Embodiment 6：Such as Fig. 5-Fig. 6, improved as one kind of the present utility model, every piece of wall of the V-arrangement slag blocking wall 10
On be equipped with 3 pod apertures 4.Multiple pod apertures 4 can be effectively increased the flow efficiency of molten steel.Remaining structure and advantage and embodiment
5 is identical.
Embodiment 7：Such as Fig. 5-Fig. 6, as it is of the present utility model it is a kind of improve, the U-shaped sidewall paneling 9 and V-arrangement slag blocking wall
The shape of cross section of 10 inwall working face is inverted L-shaped, and can prevent steel stream from rising directly impact slag interface along working face causes
Slag.Remaining structure and advantage are identical with embodiment 6.
Embodiment 8：Such as Fig. 5-Fig. 6, used as a kind of improvement of the present utility model, the U-shaped sidewall paneling 9 is an one
The calcareous prefabricated component of magnesia or magnesium that cast molding is made.It is easy to construction.Remaining structure and advantage are identical with embodiment 7.
Embodiment 9：Such as Fig. 5-Fig. 6, used as a kind of improvement of the present utility model, the wall of the V-arrangement slag blocking wall 10 is to adopt
The prefabricated component cast with anti-erosion refractory material, the pod apertures 4 are arranged on the bottom of V-arrangement slag blocking wall 10, positioned at flow control
In the both sides cavity wall of cavity 11.Remaining structure and advantage are identical with embodiment 8.
Embodiment 10：As shown in fig. 7, as a kind of improvement of the present utility model, it is described in big Baogang's water casting process
Big bag long nozzle 6 is arranged in the U-shaped region that U-shaped sidewall paneling 9 is surrounded.Remaining structure and advantage are identical with embodiment 9.
Operation principle：
Referring to shown in Fig. 1 and 2, by existing T-shaped tundish and its flow control structure drawing of device for using, including it is T-shaped in
Between bag, slag blocking wall 2, turbulence inhibitor 3, slag blocking wall 2 is arranged on the inner side of the containment wall working lining 1 of T-shaped tundish beam impact zone,
Multiple middle water containing openings 5 are being provided with the T-shaped tundish outside slag blocking wall 2.During sequence casting, molten steel enters first
Enter T-shaped tundish impact area, molten steel agitation strong in impact zone easily causes impact zone slag, therefore requires steel high to field trash
Plant and typically place turbulence inhibitor 3 to reduce slag in impact zone.
Referring to shown in Fig. 3 and 4, when turbulence inhibitor 3 is with big 6 non-centering of bag long nozzle（There is eccentric throw d）, molten steel
Beam produces asymmetry quantum dot after entering turbulence inhibitor 3, causes steel flow stock impact slag interface（That is tundish covering flux 7
Bottom）Cause slag 8.
Referring to the T-shaped tundish for shown in 7, being the flow control device proposed using the utility model, in sequence casting process
In, high speed beam out enters impact zone afterwards from big bag long nozzle 6, and " inverted L-shaped " U is subject to along the molten steel stream stock that lower working face rises
Shape sidewall paneling 9, the limitation of V-arrangement slag blocking wall 10 and change direction, it is to avoid molten steel stream stock directly impact slag interface cause slag；
Simultaneously as the bottom of " inverted L-shaped " U-shaped sidewall paneling 9, V-arrangement slag blocking wall 10 composition and tundish underwrite lining work 13 composition flow controls
Cavity, impact zone bottom is limited in by high-speed steel stream, reduces impact zone upper steel flow velocity, reduces the generation of slag, is played
" current stabilization " is acted on.
The utility model can also by least one of technical characteristic described in embodiment 2,3,4,5,6,7,8,9,10 with
The combination of embodiment 1 forms new implementation method.
Technological means disclosed in the utility model scheme is not limited only to the technological means disclosed in above-mentioned implementation method, also
Including being combined constituted technical scheme by above technical characteristic.It should be pointed out that for the ordinary skill of the art
For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (10)
1. a kind of T-shaped tundish flow control device, it is characterised in that：Including U-shaped sidewall paneling and V-arrangement slag blocking wall, U-shaped side wall
Plate and V-arrangement slag blocking wall are arranged on the inner side of the containment wall working lining of T-shaped tundish beam impact zone, the opening of the U-shaped sidewall paneling
End is mutually stitched together with the open end of V-arrangement slag blocking wall, and all splicing seams carry out embedding, the V using refractory material
The wall of shape slag blocking wall is provided with multiple pod apertures, and the inwall of the U-shaped sidewall paneling and V-arrangement slag blocking wall is using wide at the top and narrow at the bottom
The bottom of step structure, U-shaped sidewall paneling and V-arrangement slag blocking wall underwrites lining work composition flow control cavity, the flow control with tundish
It is the inclination accent towards chamber contract at the top of cavity.
2. a kind of T-shaped tundish flow control device as claimed in claim 1, it is characterised in that the U-shaped sidewall paneling and V-arrangement
The shape of cross section of the inwall working face of slag blocking wall is inverted L-shaped.
3. a kind of T-shaped tundish flow control device as claimed in claim 1, it is characterised in that the U-shaped sidewall paneling and V-arrangement
The inwall working face of slag blocking wall includes upper working face, intermediate transition surface and lower working face, and the intermediate transition surface is inclined at
Between upper working face and lower working face.
4. a kind of T-shaped tundish flow control device as claimed in claim 3, it is characterised in that the upper working face it is vertical
Highly it is 300 ~ 600mm, the vertical height of the lower working face is 300 ~ 600mm.
5. a kind of T-shaped tundish flow control device as claimed in claim 4, it is characterised in that the upper working face and lower work
It is 40 ~ 100mm to make the thickness difference between face.
6. a kind of T-shaped tundish flow control device as described in claim any one of 1-5, it is characterised in that the flow control chamber
The angle of inclination of the inclination accent at the top of body is 30 ~ 60 °.
7. a kind of T-shaped tundish flow control device as claimed in claim 6, it is characterised in that every piece of the V-arrangement slag blocking wall
3 pod apertures are equipped with wall.
8. a kind of T-shaped tundish flow control device as claimed in claim 7, it is characterised in that the U-shaped sidewall paneling is
The calcareous prefabricated component of magnesia or magnesium that one cast molding is made.
9. a kind of T-shaped tundish flow control device as claimed in claim 8, it is characterised in that the wall of the V-arrangement slag blocking wall
Formed using the casting of anti-erosion refractory material, the pod apertures are arranged on the bottom of V-arrangement slag blocking wall, positioned at the both sides of flow control cavity
In cavity wall.
10. a kind of T-shaped tundish flow control device as claimed in claim 9, it is characterised in that in big Baogang's water casting process
In, the big bag long nozzle is arranged in the U-shaped region that U-shaped sidewall paneling is surrounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243056.0U CN206253642U (en) | 2016-11-21 | 2016-11-21 | A kind of T-shaped tundish flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621243056.0U CN206253642U (en) | 2016-11-21 | 2016-11-21 | A kind of T-shaped tundish flow control device |
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| Publication Number | Publication Date |
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| CN206253642U true CN206253642U (en) | 2017-06-16 |
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ID=59025189
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621243056.0U Active CN206253642U (en) | 2016-11-21 | 2016-11-21 | A kind of T-shaped tundish flow control device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623879A (en) * | 2016-11-21 | 2017-05-10 | 张家港联峰钢铁研究所有限公司 | Flow control device for T-shaped tundish |
| CN111318682A (en) * | 2020-04-01 | 2020-06-23 | 湖北金盛兰冶金科技有限公司 | Tundish structure for square billet continuous casting and casting blank purity analysis process |
-
2016
- 2016-11-21 CN CN201621243056.0U patent/CN206253642U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106623879A (en) * | 2016-11-21 | 2017-05-10 | 张家港联峰钢铁研究所有限公司 | Flow control device for T-shaped tundish |
| CN111318682A (en) * | 2020-04-01 | 2020-06-23 | 湖北金盛兰冶金科技有限公司 | Tundish structure for square billet continuous casting and casting blank purity analysis process |
| CN111318682B (en) * | 2020-04-01 | 2022-01-25 | 湖北金盛兰冶金科技有限公司 | Tundish structure for continuous casting of square billets |
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