CN202571273U - Tundish flow control device - Google Patents
Tundish flow control device Download PDFInfo
- Publication number
- CN202571273U CN202571273U CN 201220149767 CN201220149767U CN202571273U CN 202571273 U CN202571273 U CN 202571273U CN 201220149767 CN201220149767 CN 201220149767 CN 201220149767 U CN201220149767 U CN 201220149767U CN 202571273 U CN202571273 U CN 202571273U
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- CN
- China
- Prior art keywords
- tundish
- retaining dam
- molten steel
- control device
- flow control
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Abstract
The utility model relates to the technical field of a tundish, and discloses a tundish flow control device. The flow control device comprises a retaining wall and a retaining dam, which are arranged orderly in the direction of a molten steel entrance in the tundish, wherein the retaining dam is located on the bottom of the tundish; the retaining wall is located above the oblique side of the retaining dam; one side face of the retaining dam is provided with a projection; the projection resists against the side face of the lower part of the retaining wall; the projection is located between the molten steel entrance and a stopper; two ends of the retaining dam and two ends of the retaining wall are closely clamped in the inner side of the tundish wall respectively; and the bottom of the retaining dam is closely clamped on the bottom of the tundish. With the adoption of the tundish flow control device, the flow track of molten steel is divided into two parts by the projection, so that the stopper is prevented from being directly scoured by the molten steel, and can not be easily damaged; since the two ends of the retaining dam and the two ends of the retaining wall are closely clamped in the inner side of the tundish wall respectively, and the bottom of the retaining dam is closely clamped on the bottom of the tundish, the molten steel in the tundish flows to water gaps at two sides of the tundish after the liquid level of the molten steel rises to a certain height; and therefore, the pouring rate of the water gaps at the two sides of the tundish can be effectively improved.
Description
Technical field
The utility model relates to the Tundish Technology field, particularly relates to a kind of tundish flow control device.
Background technology
Along with the development of continuous casting technology, steel mill had higher requirement to the life-span of tundish, how to water steel smoothly and how to improve billet quality and throwing speed is the key issue that will constantly capture in the continuous casting production.Molten steel in the bag directly washes away stopper, makes and the stopper sensitive for damages has reduced its service life; Solidify rapidly behind the molten steel contact working lining because the online roasting bag temperature of tundish between 1000～1400 ℃, is opened when watering, cause the mouth of a river to tie cold steel easily, cause to open and water failure; The molten steel time of staying is too short in the tundish in addition, makes the slag inclusion thing can not fully float with mouth of a river outflow, thereby has influenced the quality of steel billet, has shortened the life-span at the mouth of a river simultaneously; Simultaneously since the residual volume of molten steel in can't strict control tundish when stopping to water steel make and turn over the bag difficulty.
The utility model content
The technical problem that (one) will solve
The technical problem that the utility model will solve is that the mouth of a river that solves tundish is prone to the cold steel of knot and causes to open and water failure and stopper is prone to impaired problem.
(2) technical scheme
In order to solve the problems of the technologies described above; The utility model provides a kind of tundish flow control device, and the barricade that in tundish, sets gradually on the molten steel Way in is positioned at the bag end with retaining dam, said retaining dam; Said barricade is positioned at the oblique upper on retaining dam; One side on said retaining dam is provided with projection, and said projection props up the side of the bottom of said barricade, and said projection is between molten steel inlet and stopper; It is inboard that the two ends on said retaining dam and the two ends of barricade closely are stuck in the bag wall respectively, and the bottom on said retaining dam closely is stuck in bag at the end.
Wherein, the another side on said retaining dam is the inclined-plane.
Wherein, the top of said barricade is higher than the liquid level of molten steel in the bag.
Wherein, the width of said projection is less than or equal to the diameter of stopper.
Wherein, between the two ends on said retaining dam and the bag wall, reality is smeared in the bottom and the employing coating filling of bag at the end on retaining dam.
Wherein, the angle of said inclined-plane and horizontal plane is 105 °～120 °.
Wherein, the height on the height of said projection and inclined-plane equates.
(3) beneficial effect
A kind of tundish flow control device that technique scheme provided; Adopt barricade and retaining dam structure combining; And projection retaining is divided into two the molten steel flow track on the steel flow Inbound of stopper, avoids molten steel directly to wash away stopper and easily stopper is caused damage; And because the two ends of the two ends on retaining dam and barricade closely are stuck in bag wall inboard respectively; The bottom on retaining dam closely is stuck in bag at the end, makes molten steel flow into from the top of barricade and can only upwards flow out from the both sides of projection, makes liquid steel level in the bag rise to the mouth of a river that flows to the tundish both sides behind the certain altitude again; Can improve the casting rate at the mouth of a river, tundish both sides effectively; Reduce and to open when watering, improved the quality of steel billet, reduced steel-making cost the temperature requirement of the first stove molten steel; Simultaneously projection has played the supporting role to barricade, can prevent owing to molten steel causes collapsing of barricade to the impulsive force of barricade is excessive; Further, the utility model can guarantee when stopping watering residual fraction molten steel in the bag, helps turning over bag, particularly when the tundish flow control device is out of control, can guarantee the surplus of the interior molten steel of tundish, is beneficial to stop watering turn over bag.
Description of drawings
Fig. 1 is the Facad structure sketch map of a kind of tundish flow control device of the utility model;
Fig. 2 is the side structure sketch map of a kind of tundish flow control device of the utility model.
Wherein, 1, barricade; 2, retaining dam; 2a, projection; 2b, inclined-plane.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment, the specific embodiment of the utility model is described in further detail.Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Like Fig. 1, a kind of tundish flow control device of the utility model, barricade 1 that in tundish, sets gradually on the molten steel Way in and retaining dam 2; Retaining dam 2 is positioned at the bag end, and barricade 1 is positioned at the oblique upper on retaining dam 2, and a side on retaining dam 2 is provided with projection 2a; This projection 2a props up the side of the bottom of barricade 1; Projection 2a is between molten steel inlet and stopper, and it is inboard that the two ends on retaining dam 2 and the two ends of barricade 1 closely are stuck in the bag wall respectively, and the bottom on retaining dam 2 closely is stuck in bag at the end.The tundish flow control device that the utility model adopts barricade 1 and retaining dam 2 to combine, projection 2a keeps off on the steel flow Inbound of stopper, and the molten steel flow track is divided into two, and avoids molten steel directly to wash away stopper and easily stopper is caused damage; Simultaneously projection 2a has played the supporting role to barricade 1, can prevent owing to molten steel causes collapsing of barricade 1 to the impulsive force of barricade 1 is excessive; And because two ends a1, the b1 of two ends a2, b2 and the barricade 1 on retaining dam 2 closely are stuck in bag wall inboard respectively; The bottom on retaining dam 2 closely is stuck in bag at the end; Make molten steel from the top inflow of barricade 1 and the outflow that can only make progress from the both sides of projection 2a; Make liquid steel level in the bag rise to the mouth of a river that flows to the tundish both sides behind the certain altitude again, can improve the casting rate at the mouth of a river, tundish both sides effectively, reduce the temperature requirement of opening when watering the first stove molten steel; Improve billet quality, reduced steel-making cost; Further, the utility model can guarantee when stopping watering residual fraction molten steel in the bag, helps turning over bag, particularly when the tundish flow control device is out of control, can guarantee the surplus of the interior molten steel of tundish, is beneficial to stop watering turn over bag.The utility model is simple in structure, easy construction, and dismounting easily is fit to produce in batches.
Preferably, the angle of inclined-plane 2b and horizontal plane is 105 °～120 °; The height of the height of projection 2a and inclined-plane 2b equates, can increase the erosion resistibility of projection 2a.
Further, for make between two ends and bottom and the bag wall of baffle plate 2 contact tightr, in case backstop dam 2 levitating in the course of the work, the two ends a2 on retaining dam 2, b2 and and the bag wall between, the bottom and the employing coating filling of bag at the end on retaining dam 1 smear reality.
In order to make MOLTEN STEEL FLOW mild; To optimize the bag flow field, avoid that dying appears in molten steel in the tundish, make molten steel raise up simultaneously to increase the time of staying of molten steel in tundish; Promote the come-up of slag inclusion thing in the molten steel; Thereby carry out purifying the second time after making molten steel flow out impact zone, preferably, 2 another sides relative and projection 2a, retaining dam of present embodiment are inclined-plane 2b.
Flow out impact zone and when watering steel, influence billet quality for fear of slag, make before the level district is dashed in the molten steel outflow and carry out the catharsis first time, preferably, the top of the barricade 1 of present embodiment is higher than the liquid level of the interior molten steel of bag.
In order more effectively to reduce the scouring capability of molten steel to stopper, preferably, the width of the projection 2a of present embodiment is less than or equal to the diameter of stopper.
The concrete construction work of a kind of tundish flow control device that above technical scheme provided is: material is mixed by a certain percentage, put into the moulding of mould tire after mixing; Earlier barricade 1 is installed and fixed during site operation; On lying against retaining dam 2 at the bottom of the bag of tundish working lining; The bottom of the non-impact zone of outstanding 2a and the barricade 1 on retaining dam 2 is adjacent to; It is real that two ends and the Bao Bi on retaining dam 2 is adjacent to card, at last with coating two ends that will keep off dam 2 and the slit of wrapping wall, keep off the bottom on dam 2 and reality is smeared in the slit filling of wrapping at the end, in case backstop dam 2 levitating in use.
The above only is the preferred implementation of the utility model; Should be understood that; For those skilled in the art; Under the prerequisite that does not break away from the utility model know-why, can also make some improvement and replacement, these improvement and replacement also should be regarded as the protection domain of the utility model.
Claims (7)
1. a tundish flow control device is characterized in that, is included in the barricade and retaining dam that set gradually on the molten steel Way in the tundish; Said retaining dam is positioned at the bag end, and said barricade is positioned at the oblique upper on retaining dam, and a side on said retaining dam is provided with projection; Said projection props up the side of the bottom of said barricade; Said projection is between molten steel inlet and stopper, and it is inboard that the two ends on said retaining dam and the two ends of barricade closely are stuck in the bag wall respectively, and the bottom on said retaining dam closely is stuck in bag at the end.
2. tundish flow control device as claimed in claim 1 is characterized in that, the another side on said retaining dam is the inclined-plane.
3. tundish flow control device as claimed in claim 1 is characterized in that, the top of said barricade is higher than the liquid level of molten steel in the bag.
4. tundish flow control device as claimed in claim 1 is characterized in that, the width of said projection is less than or equal to the diameter of stopper.
5. tundish flow control device as claimed in claim 1 is characterized in that, between the two ends on said retaining dam and the bag wall, the bottom and the employing coating filling of bag between the end on retaining dam smear reality.
6. tundish flow control device as claimed in claim 2 is characterized in that, the angle of said inclined-plane and horizontal plane is 105 °～120 °.
7. tundish flow control device as claimed in claim 2 is characterized in that, the height of said projection and the height on inclined-plane equate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149767 CN202571273U (en) | 2012-04-10 | 2012-04-10 | Tundish flow control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220149767 CN202571273U (en) | 2012-04-10 | 2012-04-10 | Tundish flow control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202571273U true CN202571273U (en) | 2012-12-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220149767 Expired - Lifetime CN202571273U (en) | 2012-04-10 | 2012-04-10 | Tundish flow control device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202571273U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184647A1 (en) * | 2018-03-30 | 2019-10-03 | 宝山钢铁股份有限公司 | Flow-controllable tundish structure capable of filtering inclusions in molten steel |
-
2012
- 2012-04-10 CN CN 201220149767 patent/CN202571273U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019184647A1 (en) * | 2018-03-30 | 2019-10-03 | 宝山钢铁股份有限公司 | Flow-controllable tundish structure capable of filtering inclusions in molten steel |
| US11273488B2 (en) | 2018-03-30 | 2022-03-15 | Baoshan Iron & Steel Co., Ltd. | Flow-controllable tundish structure capable of filtering inclusions in molten steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
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| CX01 | Expiry of patent term |