CN204912741U - Package in middle of five classes of billet casting - Google Patents
Package in middle of five classes of billet casting Download PDFInfo
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- CN204912741U CN204912741U CN201520679000.9U CN201520679000U CN204912741U CN 204912741 U CN204912741 U CN 204912741U CN 201520679000 U CN201520679000 U CN 201520679000U CN 204912741 U CN204912741 U CN 204912741U
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Abstract
The utility model provides a package in middle of five classes of billet casting, include the inclusion and fix the U type pushing off the slag wall at the inclusion middle part, centre, both sides and the both ends of the bottom of inclusion are equipped with the tapping hole respectively, the side wall of barricade both sides in the middle of the pushing off the slag wall includes middle barricade and is located, two side walls are obtuse angle, its characterized in that with the contained angle that middle barricade becomes: it has four stream steel holes to open on the middle barricade, two stream steel holes have been opened on two side walls respectively, it is 10-20 to flow the hole axis in steel hole and the contained angle between the horizontal direction. The utility model discloses a middle package simple structure, can optimize in the middle of in the package molten steel distribution of temperature, improvement molten steel tie the cleanliness factor.
Description
Technical field
The utility model relates to Ferrous Metallurgy continuous-casting art, refers to a kind of five stream billet continuous casting tundish particularly.
Background technology
In field of iron and steel smelting, conticaster is used for the molten steel solidification of liquid state to become solid-state strand, and conticaster is divided into slab caster and billet caster, and slab caster is generally single current or double fluid, greatly, large can reach more than eight streams in the fluxion change of billet caster.In order to molten steel is evenly distributed to each stream, the structure of tundish serves key effect.
Continuous casting production is a transitional container between ladle and crystallizer, and its major function is: store, shunt molten steel, reduce ferrostatic pressure, stablize molten steel flow, realize sequence casting and removal of inclusions.
What employing made steel by Wuhan Iron and Steel Plant one is five strand casting machine, its tundish structure adopted is T-shaped tundish, slag blocking wall is with outside impact zone, slag blocking wall has 13 holes, the hole on slag blocking wall is vertical with pushing off the slag metope, and this structure tundish is when casting, molten steel flow regime in tundish is not ideal enough, through measuring, the liquid steel temperature difference between each stream is 10 ~ 13 DEG C, and the temperature difference is larger.
Summary of the invention
The purpose of this utility model is to provide the five stream billet continuous casting tundish that a kind of structure is simple, can optimize liquid steel temperature distribution in tundish, improve molten steel knot cleanliness factor.
For achieving the above object, five stream billet continuous casting tundish designed by the utility model, comprise inclusion and be fixed on the U-shaped slag blocking wall in the middle part of inclusion, the centre of the bottom of described inclusion, both sides and two ends are respectively equipped with tapping hole, described slag blocking wall comprises middle barricade and is positioned at the side wall of middle barricade both sides, formed by described two side walls and middle barricade, angle is obtuse angle, it is characterized in that: described middle barricade has four steel outlet holes, described two side walls have two steel outlet holes, angle between the axially bored line of described steel outlet hole and horizontal direction is 10 ~ 20 °.
Further, the axially bored line of the steel outlet hole on described side wall is 20 ~ 30 ° with being positioned at this steel outlet hole homonymy, being arranged at the axis angle of the tapping hole of inclusion end.
Further, four steel outlet holes on described middle barricade are symmetrical about middle barricade central shaft, and two steel outlet holes on described side wall are vertically distributed on side wall.
Further, turbulent flow suppressor is provided with bottom the inclusion in region that the middle part of described inclusion and described slag blocking wall surround.
The utility model has the advantage of:
Compared with prior art, the one five that the utility model proposes flows billet continuous casting tundish, the region surrounded in the middle part of U-shaped slag blocking wall and tundish inclusion is molten steel injection region, axially bored line and the slag blocking wall mask of steel outlet hole have certain inclination angle, steel outlet hole has point flow velocity perpendicular to injection direction when molten steel is flowed out, molten steel is intersected mutually, heat flux distribution is even, the simultaneously direction out of plumb injected of steel outlet hole and molten steel, molten steel flows out and slows, molten steel is fully stopped in injection region, the floating being conducive to field trash is removed, reduce the amount of inclusions in molten steel, improve molten steel knot cleanliness factor.Through measuring and calculating, the liquid steel temperature difference between each stream is reduced to about 5 DEG C, and heavy rail field trash qualification rate can bring up to 98.5%, and flaw detection qualification rate can bring up to more than 99%.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of five stream billet continuous casting tundish;
Fig. 2 is the open-celled structure schematic diagram of slag blocking wall in Fig. 1;
In figure: inclusion 1, slag blocking wall 2, turbulent flow suppressor 3, steel outlet hole 5, tapping hole 6, middle barricade 11, side wall 12.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
One five designed by the utility model flows billet continuous casting tundish, the U-shaped slag blocking wall 2 comprising inclusion 1 and be fixed in the middle part of inclusion 1, the centre of the bottom of described inclusion 1, both sides and two ends are respectively equipped with tapping hole 6, described slag blocking wall 2 comprises middle barricade 11 and is positioned at the side wall 12 of middle barricade 11 both sides, described two side walls 12 are obtuse angle with angle formed by middle barricade 11, it is characterized in that: described middle barricade 11 has four steel outlet holes 5, described two side walls 12 have two steel outlet holes 5, angle between the axially bored line of described steel outlet hole 5 and horizontal direction is 10 ~ 20 °.
The region surrounded in the middle part of U-shaped slag blocking wall 2 and tundish inclusion 1 is molten steel injection region, the axially bored line of steel outlet hole 5 and pushing off the slag metope are set certain inclination angle, there is when then steel outlet hole 5 makes molten steel flow out point flow velocity perpendicular to injection direction, molten steel is intersected mutually, heat flux distribution is even, the simultaneously direction out of plumb injected of steel outlet hole 5 and molten steel, molten steel flows out and slows, molten steel is fully stopped in injection region, the floating being conducive to field trash is removed, reduce the amount of inclusions in molten steel, improve molten steel knot cleanliness factor.While change steel outlet hole 5 angle, the hole number of steel outlet hole 5 on middle barricade 11 is set as four, on side wall 12, hole number is all set as 2 two, better can optimize the heat flow field distribution of molten steel, make more uniform temperature, the floating better effects if of field trash, through measuring and calculating, liquid steel temperature difference between each stream is reduced to about 5 DEG C, and heavy rail field trash qualification rate can bring up to 98.5%, and flaw detection qualification rate can bring up to more than 99%.
Further, the axially bored line of the steel outlet hole 5 on described side wall 12 is 20 ~ 30 ° with being positioned at this steel outlet hole homonymy, being arranged at the axis angle of the tapping hole 6 of inclusion 1 end.
Further, four steel outlet holes 5 on described middle barricade 11 are symmetrical about middle barricade 11 central shaft, and two steel outlet holes 5 on described side wall 12 are vertically distributed on side wall 12.
Further, turbulent flow suppressor 3 is provided with bottom the inclusion 1 in region that the middle part of described inclusion 1 and described slag blocking wall 2 surround.Turbulent flow suppressor 3 can suppress turbulent flow, reduces the impulsive force of molten steel.
The above is only preferred embodiment of the present utility model; should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle; can also design some changes and retouching, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (4)
1. a stream billet continuous casting tundish, comprise inclusion (1) and be fixed on the U-shaped slag blocking wall (2) in the middle part of inclusion (1), the centre of the bottom of described inclusion (1), both sides and two ends are respectively equipped with tapping hole (6), described slag blocking wall (2) comprises middle barricade (11) and is positioned at the side wall (12) of middle barricade (11) both sides, described two side walls (12) are obtuse angle with the formed angle of middle barricade (11), it is characterized in that: described middle barricade (11) has four steel outlet holes (5), described two side walls (12) have two steel outlet holes (5), angle between the axially bored line of described steel outlet hole (5) and horizontal direction is 10 ~ 20 °.
2. five stream billet continuous casting tundish according to claim 1, is characterized in that: the axially bored line of the steel outlet hole (5) on described side wall (12) is 20 ~ 30 ° with being positioned at this steel outlet hole homonymy, being arranged at the axis angle of the tapping hole (6) of inclusion (1) end.
3. five stream billet continuous casting tundish according to claim 1, it is characterized in that: four steel outlet holes (5) on described middle barricade (11) are symmetrical about middle barricade (11) central shaft, two steel outlet holes (5) on described side wall (12) are vertically distributed on side wall (12).
4. five stream billet continuous casting tundish according to claim 1 or 2 or 3, is characterized in that: inclusion (1) bottom in the region that the middle part of described inclusion (1) and described slag blocking wall (2) surround is provided with turbulent flow suppressor (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520679000.9U CN204912741U (en) | 2015-09-01 | 2015-09-01 | Package in middle of five classes of billet casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520679000.9U CN204912741U (en) | 2015-09-01 | 2015-09-01 | Package in middle of five classes of billet casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204912741U true CN204912741U (en) | 2015-12-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520679000.9U Active CN204912741U (en) | 2015-09-01 | 2015-09-01 | Package in middle of five classes of billet casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204912741U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024862A (en) * | 2020-08-21 | 2020-12-04 | 大冶特殊钢有限公司 | Preparation method of tundish permanent lining and construction tire membrane thereof |
-
2015
- 2015-09-01 CN CN201520679000.9U patent/CN204912741U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024862A (en) * | 2020-08-21 | 2020-12-04 | 大冶特殊钢有限公司 | Preparation method of tundish permanent lining and construction tire membrane thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170710 Address after: 430083, Hubei Wuhan Qingshan District Factory No. 2 Gate joint stock company organs Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuchang, Hubei Friendship Road, No. A, block, floor 999, 15 Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| TR01 | Transfer of patent right |