CN204396818U - Tundish filtration, gettering current divider - Google Patents
Tundish filtration, gettering current divider Download PDFInfo
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- CN204396818U CN204396818U CN201420795804.0U CN201420795804U CN204396818U CN 204396818 U CN204396818 U CN 204396818U CN 201420795804 U CN201420795804 U CN 201420795804U CN 204396818 U CN204396818 U CN 204396818U
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- font
- tundish
- filtration members
- current divider
- gettering
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Abstract
The utility model relates to the filtration of a kind of tundish, gettering current divider, comprise tundish body, permanent layer and working lining, middle water containing opening, slag blocking wall, turbulence inhibitor and partial flow filter, it is characterized in that described partial flow filter is arranged on the below of slag blocking wall, by partial flow filter body, be embedded in intrinsic several of partial flow filter formed with through hole and in the filtration members of " V " font or " U " font, compound one deck adsorption layer on the inwall of described " V " font or " U " font filtration members.The utility model has the advantages that: the specific area increasing current divider unit volume and steel contacts to greatest extent, the probability that raising field trash and current divider collide, on the other hand, substantially improve the nowed forming of molten steel in tundish, the impurity effect removed in molten steel can be improved further.
Description
Technical field
The utility model relates to a kind for the treatment of facility of motlten metal, particularly a kind of tundish filtration, gettering current divider.
Background technology
Tundish is an intermediate receptacle between ladle and crystallizer, effect is decompression, current stabilization, slagging-off, Chu Gang shunting and realize tundish metallurgy.Along with more and more higher to steel products quality requirement, modern metallurgical more and more higher to Molten Steel Cleanliness requirement.Field trash is present in steel as independent entry, destroys the continuity of steel matrix, increases the inhomogeneities organized in steel, has had a strong impact on the various performances of steel, and meanwhile, steel inclusion also easily causes continuous casting billet and stocking defect, causes waste product.Therefore, removal of inclusions, to improve Cleanliness of Molten Steel be an important goal of modern technical field of smelting.Tundish has been not merely a transition container, but strives further removal of inclusions in tundish, prevents the secondary pollution of molten steel from improving the degree of purity of molten steel further.
In order to reach the object of clean molten steel, from the 70's of 20th century, metallargist just begins one's study by arranging the flow control devices such as dam, weir, turbulence inhibitor in tundish, change the flow regime of molten steel, eliminate the short-circuit flow in tundish, extend the time of staying of molten steel in tundish, promote the removal of field trash, finally reach the object improving Cleanliness of Molten Steel; To the 80's of 20th century, people on the basis arranging weir and dam, start the research of installing water conservancy diversion partition wall, filter etc. in tundish again, thus change and optimize the flow regime of molten steel further, improve the removal effect of field trash; After the 90's of 20th century, Argon in tundish, uses stirring of inert gas molten steel, promotes molecule is mingled with in steel collision, grows up and float; To 21st century, various molten steel flow control device is widely used.
Such as disclosed in Chinese patent literature CN2863314Y about tundish air blowing shelves dam, wherein relate to employing band pressure nitrogen gas and in continuous casting production, form gear dam of blowing to remove the tundish air blowing gear dam device of steel impurities in water through air brick, relate to a kind of turbulence inhibitor in document CN2863315Y, employing be that access can make by air brick wherein anti-turbulence device by insufflation nitrogen bottom controller.Disclose a kind of continuous casting production with guiding device in Chinese patent literature CN265824Y, this patent is provided with " bottom pouring type " flow-guiding channel between the impact zone and pouring area of tundish.Reduce in steel and be mingled with content, improve the cleannes of molten steel.But due to flow-guiding channel and mozzle smooth interior surfaces, still Inclusion Problem in steel can not be solved.
CN201030436Y discloses a kind of tundish filter, comprises matrix, and matrix is provided with some special-shaped through holes with poly-slag aperture.This special-shaped through hole has the poly-slag aperture of a small-bore directly over clear opening.This filter adds filter bores adsorbance, but processed complex, and poly-slag aperture is easily blocked.
CN 201124222 Y discloses a kind of tundish filter of multiple filtration column combination, adopts on base plate and many Filter columns are housed, form Filter column sub-assembly, and multiple Filter column sub-assembly is superimposed together up and down and forms multiple filtration column combination part.This filter has considered metal fluidity and Impurity removal effect, and everyway improves to some extent, but this apparatus structure relative complex, cost of manufacture is higher, in actual production process, easily broken up layer by molten steel.Disclose a kind of continuous casting production with guiding device in Chinese patent literature CN265824Y, this patent is provided with " bottom pouring type " flow-guiding channel between the impact zone and pouring area of tundish.Reduce in steel and be mingled with content, improve the cleannes of molten steel.But due to flow-guiding channel and mozzle smooth interior surfaces, easily occur turbulent flow during onsite application, slagging-off effect is undesirable, and catheter length is single, easily occurs dross, to being mingled with, removal of floating is unfavorable.
Therefore, in fact there is a kind of demand in prior art, expect that the injection stream molten steel time of staying that can solve tundish extends to some extent; Also expect that the molten steel dead space volume of tundish reduces as far as possible; The metallurgical effect of tundish is improved, improves billet quality.
Summary of the invention
The purpose of this utility model is to provide a kind of specific area increasing current divider unit volume and steel contacts to greatest extent, the probability that raising field trash and current divider collide, on the other hand, substantially improve the nowed forming of molten steel in tundish, the tundish filtration of the impurity effect removed in molten steel, gettering current divider can be improved further.
The purpose of this utility model is realized by following technical proposals:
A kind of tundish of the present utility model filters, gettering current divider, comprise tundish body, tundish body there are permanent layer and working lining, be arranged on the middle water containing opening on tundish body bottom surface, the intrinsic slag blocking wall of tundish is set, tundish body is divided into impact zone and pouring area by described slag blocking wall, turbulence inhibitor is positioned at the below of tundish impact area long nozzle, described pouring area is provided with the partial flow filter being communicated with impact zone, it is characterized in that described partial flow filter is arranged on the below of slag blocking wall, and by partial flow filter body, be embedded in intrinsic several of partial flow filter formed with the filtration members that through hole is also " V " font or " U " font, described in " V " font or the entrance point of the filtration members of " U " font be arranged on impact zone, and opening upwards, the port of export being the filtration members of " V " font or " U " font is upwards arranged on pouring area with tilting, at described compound one deck adsorption layer in " V " font or on the inwall of the filtration members of " U " font.
Described in " V " font or the filtration members cross section of " U " font be square, circular, ellipse or polygon.
Described in " V " font or the inwall of the filtration members of " U " font be convex-concave structure.
Described convex-concave structure is quincunx or female thread.
Described in V " length of the filtration members of font or " U " font is 100 mm-600mm.
Described in " V " font or the aperture of the filtration members through hole of " U " font be φ 10 mm-90mm.
Described in " V " font or the port of export of the filtration members of " U " font angle that is inclined upwardly be 15 °-35 °, the angle that tilts is 8 °-15 °
The material of described adsorption layer is alumina graphite material, carbon-free material or calcareous material.
Described alumina graphite material percentage by weight is Al
2o
3, wherein Al
2o
3content is 46-63 and C content is 8-20.
Described carbon-free material percentage by weight is ZnO content is 80-85, Al
2o
3content is 80-86, magnesium aluminate spinel or CaO content are 15-23.
The utility model has the advantages that:
1) in tundish, have employed above-mentioned partial flow filter due to of the present utility model, in " liquid metals making to enter pouring area forms the collision of stoke phase, allows be mingled with chance collision and grow up;
2) in addition, also because the inwall of filtration members of the present utility model adopts convex-concave structure, limits ground increases the specific area of filter unit volume and steel contacts, the probability that raising field trash and filter collide, substantially improve the nowed forming of molten steel in tundish, be conducive to inclusion floating, thus purify hot metal;
3) adsorption layer adopts different sorbing materials, effectively can improve the effect of different liquids metal gettering.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the A-A sectional view of Fig. 1.
Fig. 3 is that filtration members adopts the office of square structure to cut open amplification.
Fig. 4 is that filtration members adopts the office of circular configuration to cut open amplification.
The schematic diagram of Fig. 5 to be the filtration members of the utility model partial flow filter be U-shaped structure.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail.
As Fig. 1-5 shows, a kind of tundish of the present utility model filters, gettering current divider, comprise tundish body 1, tundish body 1 there are permanent layer 7 and working lining 8, be arranged on the middle water containing opening 9 on tundish body 1 bottom surface, the intrinsic slag blocking wall 2 of tundish is set, tundish body 1 is divided into impact zone and pouring area by described slag blocking wall 2, turbulence inhibitor 3 is positioned at the below of tundish impact area long nozzle 4, described pouring area is provided with the partial flow filter being communicated with impact zone, it is characterized in that described partial flow filter is arranged on the below of slag blocking wall 2, and by partial flow filter body 5, several being embedded in partial flow filter body 5 formed with through hole and in the filtration members 6 of " V " font or " U " font, described in " V " font or the entrance point of the filtration members 6 of " U " font be arranged on impact zone, and opening upwards, the port of export being the filtration members 6 of " V " font or " U " font is upwards arranged on pouring area with tilting, at described compound one deck adsorption layer 6-1 in " V " font or on the inwall of the filtration members 6 of " U " font.
Preferably, the material of adsorption layer 6-1 described in the utility model is alumina graphite material, carbon-free material or calcareous material.
Described alumina graphite material percentage by weight is Al
2o
3, wherein Al
2o
3content is 46-63 and C content is 8-20.
Described carbon-free material percentage by weight is ZnO content is 80-85, Al
2o
3content is 80-86, magnesium aluminate spinel or CaO content are 15-23.
When straight carbon steel, the high-carbon steel of casting metal: the adsorption layer 6-1 selecting alumina graphite material.
When the high-quality steel of casting metal: select Al
2o
3content is the adsorption layer 6-1 of 80-86 or magnesium aluminate spinel.
When the clean steel of casting metal: select calcareous CaO content to be the adsorption layer 6-1 of 15-23 or carbon-free material.
The setting of the utility model adsorption layer 6-1 improves the effect of adsorbing and being mingled with effectively.
Preferably, the filtration members 6 in " V " font or " U " font described in the utility model can be square, circular, ellipse or polygon.According to casting metal characteristic deoxidation system, filtration members can be designed to square, circular, oval or polygon.
Fig. 3 gives filtration members and adopts the office of square structure to cut open Fang great Tu, and straight carbon steel, high-carbon steel can select the filtration members 6 of circle or ellipse; Square or polygonal filtration members 6 selected by high-quality steel or clean steel.
Preferably, the inwall of the filtration members 6 in " V " font or " U " font described in the utility model is convex-concave structure.Described convex-concave structure is quincunx or female thread.Fig. 4 gives filtration members employing circular configuration and enlarged drawing cuts open in the office that inwall is convex-concave structure, inwall be convex-concave structure limits increase the specific area of filter unit volume and steel contacts, the probability that raising field trash and filter collide, substantially improve the nowed forming of molten steel in tundish, be conducive to inclusion floating, thus purify hot metal.
Preferably, the length of the filtration members 6 in " V " font or " U " font described in the utility model is 100 mm-600mm.High-quality steel selects length to be the filtration members of 260-300 mm, and clean steel selects length to be the filtration members of 300-600mm, and straight carbon steel selects length to be the filtration members of 100-300mm.
Preferably, described in " V " font or the aperture of filtration members 6 through hole of " U " font be φ 10 mm-90mm, the size in its aperture is determined according to the section of Blang's collision, velocity gradient collision, Stokes collision and strand, mouth of a river diameter, cast steel grade.During cast high-quality steel, the aperture of filtration members 6 through hole adopts φ 60 mm-φ 68 mm; During cast clean steel, the aperture of filtration members 2 through hole adopts φ 70mm-φ 90 mm; During cast straight carbon steel, the aperture of filtration members 2 through hole adopts φ 10 mm-φ 60 mm.
Described in " V " font or the port of export of the filtration members 6 of " U " font angle that is inclined upwardly be 15 °-35 °, the angle that tilts is 8 °-15 °, when pouring basket liquid level is higher than 1.3 meters, the port of export of the filtration members in " V " font or " U " font angle that is inclined upwardly is 12 °-35 °; When middle water containing opening diameter is greater than φ 65mm, the port of export of the filtration members 6 in " V " font or " U " font and middle water containing opening form the angle of inclination of 8 °-12 °, when middle water containing opening diameter is less than φ 65mm, the port of export of the filtration members 6 in " V " font or " U " font and middle water containing opening form the angle of inclination of 10 °-15 °.
The utility model is also applicable to the cast of other liquid metal.
Claims (8)
1. a tundish filters, gettering current divider, comprise tundish body, tundish body there are permanent layer and working lining, be arranged on the middle water containing opening on tundish body bottom surface, the intrinsic slag blocking wall of tundish is set, tundish body is divided into impact zone and pouring area by described slag blocking wall, turbulence inhibitor is positioned at the below of tundish impact area long nozzle, described pouring area is provided with the partial flow filter being communicated with impact zone, it is characterized in that described partial flow filter is arranged on the below of slag blocking wall, by partial flow filter body, be embedded in intrinsic several of partial flow filter formed with the filtration members that through hole is also " V " font or " U " font, described in " V " font or the entrance point of the filtration members of " U " font be arranged on impact zone, and opening upwards, the port of export being the filtration members of " V " font or " U " font is upwards arranged on pouring area with tilting, compound one deck adsorption layer on the inwall of described " V " font or " U " font filtration members.
2. tundish according to claim 1 filter, gettering current divider, it is characterized in that described in " V " font or the filtration members cross section of " U " font be square, circular, ellipse or polygon.
3. tundish according to claim 1 filter, gettering current divider, it is characterized in that described in " V " font or the inwall of the filtration members of " U " font be convex-concave structure.
4. tundish filtration according to claim 3, gettering current divider, is characterized in that described convex-concave structure is quincunx or female thread.
5. tundish according to claim 1 filter, gettering current divider, it is characterized in that described in " V " font or the length of the filtration members of " U " font be 100 mm-600mm.
6. tundish according to claim 1 filter, gettering current divider, it is characterized in that described in " V " font or the aperture of the filtration members through hole of " U " font be φ 10 mm-90mm.
7. tundish according to claim 1 filter, gettering current divider, it is characterized in that be the port of export of the filtration members of " V " font or " U " font angle that is inclined upwardly be 15 °-35 °, the angle that tilts is 8 °-15 °.
8. tundish filtration according to claim 1, gettering current divider, is characterized in that the material of described adsorption layer is alumina graphite material, carbon-free material or calcareous material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795804.0U CN204396818U (en) | 2014-12-17 | 2014-12-17 | Tundish filtration, gettering current divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420795804.0U CN204396818U (en) | 2014-12-17 | 2014-12-17 | Tundish filtration, gettering current divider |
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| Publication Number | Publication Date |
|---|---|
| CN204396818U true CN204396818U (en) | 2015-06-17 |
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ID=53420716
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420795804.0U Active CN204396818U (en) | 2014-12-17 | 2014-12-17 | Tundish filtration, gettering current divider |
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| Country | Link |
|---|---|
| CN (1) | CN204396818U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439136A (en) * | 2014-12-17 | 2015-03-25 | 谢玉红 | Impurity filtering and absorbing flow divider for tundish |
| CN111014581A (en) * | 2019-12-31 | 2020-04-17 | 安徽应流航源动力科技有限公司 | Investment precision casting turbine mold and turbine preparation method |
| CN111470854A (en) * | 2020-04-12 | 2020-07-31 | 辽宁科技大学 | Composite tundish slag absorption filter and production method thereof |
-
2014
- 2014-12-17 CN CN201420795804.0U patent/CN204396818U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104439136A (en) * | 2014-12-17 | 2015-03-25 | 谢玉红 | Impurity filtering and absorbing flow divider for tundish |
| CN111014581A (en) * | 2019-12-31 | 2020-04-17 | 安徽应流航源动力科技有限公司 | Investment precision casting turbine mold and turbine preparation method |
| CN111470854A (en) * | 2020-04-12 | 2020-07-31 | 辽宁科技大学 | Composite tundish slag absorption filter and production method thereof |
| CN111470854B (en) * | 2020-04-12 | 2022-03-08 | 辽宁科技大学 | Composite tundish slag absorption filter and production method 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 | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210625 Address after: 114000 No.3, Huifeng Road, Tengao Town, Haicheng City, Anshan City, Liaoning Province Patentee after: ANSHAN HUAXING METALLURGY FURNACE CHARGE Co.,Ltd. Address before: 114002 no.240-400, Shuguang Road, Lishan District, Anshan City, Liaoning Province Patentee before: Xie Yuhong |