CN203030854U - Non-linear liquid steel flowing channel - Google Patents
Non-linear liquid steel flowing channel Download PDFInfo
- Publication number
- CN203030854U CN203030854U CN 201220718365 CN201220718365U CN203030854U CN 203030854 U CN203030854 U CN 203030854U CN 201220718365 CN201220718365 CN 201220718365 CN 201220718365 U CN201220718365 U CN 201220718365U CN 203030854 U CN203030854 U CN 203030854U
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- liquid steel
- channel
- linear
- inner hole
- ladle canal
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Abstract
The utility model relates to a non-linear liquid steel flowing channel. The linear liquid steel flowing channel is arranged between a middle impact area and a casting area to guide liquid steel to flow, and comprises a channel inner hole and a channel outer wall. The channel inner hole is penetratingly arranged in the non-linear liquid steel flowing channel, a liquid steel inlet and a liquid steel outlet are respectively arranged on two sides of the non-linear liquid steel flowing channel, the channel inner hole is obliquely arranged in the vertical direction, the inclined angle of the channel inner hole is 0 degree to 30 degrees, the non-linear liquid steel flowing channel is arc-shaped or folded-linear shaped in the horizontal direction, and the channel inner hole is a circular hole or a polygonal hole. A flowing field and a temperature field for middle steeling liquid are optimized, occluded foreign substances are effectively driven to float upwards to be separated, liquid steel ingredients and temperature are leveled, the inclined angle of the non-linear liquid steel flowing channel helps to form a liquid steel upflow, and the occluded foreign substances are driven to float upwards to be absorbed by covering agents.
Description
Technical field
The utility model relates to smelts the continuous casting technology field, refers in particular to a kind of nonlinear type ladle canal of a kind of tundish channel-type electromagnetic induction heating and purifier.
Background technology
Along with the development of modern continuous casting Tundish Technology with to improving constantly that slab quality requires, steel mill and refractory material producer have taked several different methods, comprise containing amount in the increase, dam, weir, deflector are set; Big capacity tundish can improve slab quality to a certain extent, and under the certain situation of tundish capacity, dam and weir can prevent short-circuit flow, improves to open and waters success rate; Arranging of deflector is divided into impact zone and casting area with tundish, and simultaneously the guide molten steel direction stops the surface to be refluxed, and can farthest improve also deslagging to greatest extent just of the time of staying of molten steel in tundish.
In actual production, molten steel flow field is inhomogeneous in the tundish, some places are fast, and some places are slow, and especially there is sluggish molten steel stagnant wake in the tundish bottom section, the inclusion floating difficulty, dam, weir, deflector are set improve the tundish flow field and distribute, but the many long temperature drop of its molten steel stroke of tundish of fluxion is bigger, causes the interior temperature field of tundish inhomogeneous, the inhomogeneous of temperature field has in various degree influence to pulling rate and slab quality, may tie conductance when serious and cause and stop watering.
Summary of the invention
The purpose of this utility model is improved and is innovated at the defective that exists in the background technology and problem, a kind of flow field and temperature field of optimizing the tundish molten steel is provided, promote inclusion floating to separate effectively, and a kind of nonlinear type ladle canal of even molten steel composition and temperature.
The technical solution of the utility model is a kind of being arranged between tundish impact zone and the casting area of structure, and the flow direction of guide molten steel comprises a kind of nonlinear type ladle canal of access bore 1 and channel outer wall 2, wherein:
Advantage of the present utility model and beneficial effect:
The utility model advantage is to optimize temperature field and the flow field of molten steel in the tundish, shortens the stroke of molten steel in tundish, makes the interior liquid steel temperature of tundish even, and promotes that inclusion floating is adsorbed by surface dopant in the molten steel, and purify hot metal improves slab quality.
The utility model biggest advantage is to design the ladle canal at difformity and varying level inclination angle according to the different fluxions of tundish, temperature field and the flow field of molten steel in the maximum optimization tundish, the inclination angle of ladle canal helps molten steel to form upwelling, promotes the capped agent absorption of inclusion floating.
Description of drawings
Fig. 1 is front view of the present utility model.
Fig. 2 is vertical view of the present utility model.
Fig. 3 is side view of the present utility model.
The specific embodiment
By Fig. 1 to Fig. 3 as can be known, the utility model is arranged between tundish impact zone and the casting area, and the flow direction of guide molten steel comprises access bore 1 and channel outer wall 2, wherein:
The body that described access bore 1 and channel outer wall 2 constitute is global formation or multistage assembly unit moulding.
Described access bore 1 and channel outer wall 2 adopt the composite of refractory material or refractory material and metal.
The passage length of described access bore 1 is 50-3000mm.
Structural principle of the present utility model:
The utility model is placed between tundish impact zone and the casting area, has the effect of molten steel water conservancy diversion, is made up of high temperature resistant erosion resistant access bore 1 and channel outer wall 2.
Its access bore 1 is circular hole or rectangular opening or square hole or polygonal hole, and there are the inclination angle of 0-30 degree in endoporus and horizontal direction, makes the molten steel formation upwelling of the passage of flowing through be conducive to floating foreign in the molten steel, thus purify hot metal.
The passage length of access bore 1 is 50-3000mm, is nonlinear types such as arc and broken line shape.
The preparation of ladle canal can global formation, also can multistage assembly unit moulding.
This nonlinear type ladle canal can be refractory material, also can be the composite of refractory material and metal.
Contrast test when 4 machines 4 that the utility model and domestic certain company produce flow 280x320mm large square bland continuous-casting machine integral bearing steel:
One of them water time use two arc ladle canals as for the tundish impact zone to the casting area both sides, and the passway, both sides points to the center lines and the 3rd of the 1st, 2 streams, the center lines of 4 streams respectively, another one is watered time common slag blocking wall perforate water conservancy diversion molten steel of use;
Use the interior liquid steel temperature field of the inferior tundish of watering of arc ladle canal even, the liquid steel temperature fluctuation range is 1470-1475 ℃ in the tundish, and the liquid steel temperature fluctuation range is 1465-1480 ℃ in the inferior tundish of watering of common slag blocking wall perforate water conservancy diversion and use; There is the horizontal tilt angle of 10 degree in the arc ladle canal, the molten steel that is conducive to the ladle canal outlet forms upwelling, promote inclusion floating purify hot metal in the molten steel, tundish uses inferior the comparing of watering of arc ladle canal to use time molten steel oxygen content of watering of slag blocking wall perforate water conservancy diversion to reduce by 20%.
Embodiment described in the utility model only is the description that preferred embodiment of the present utility model is carried out; be not that the utility model design and scope are limited; under the prerequisite that does not break away from the utility model design philosophy; engineers and technicians make the technical solution of the utility model in this area various modification and improvement; all should fall into protection domain of the present utility model; the technology contents that the utility model is asked for protection all is documented in claims.
Claims (3)
1. a nonlinear type ladle canal is characterized in that this nonlinear type ladle canal is arranged between tundish impact zone and the casting area, and the flow direction of guide molten steel comprises access bore (1) and channel outer wall (2), wherein:
Access bore (1) runs through and is arranged in this nonlinear type ladle canal, and its molten steel is imported and exported the both sides that are separately positioned on the nonlinear type ladle canal; Access bore (1) is obliquely installed in the vertical direction, and the inclination angle is the 0-30 degree; Its passage is arc or broken line shape in the horizontal direction; Its endoporus is circular hole or polygonal hole.
2. a kind of nonlinear type ladle canal according to claim 1 is characterized in that the body that described access bore (1) and channel outer wall (2) constitute is global formation or multistage assembly unit moulding.
3. a kind of nonlinear type ladle canal according to claim 1, the passage length that it is characterized in that described access bore (1) is 50-3000mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718365 CN203030854U (en) | 2012-12-24 | 2012-12-24 | Non-linear liquid steel flowing channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220718365 CN203030854U (en) | 2012-12-24 | 2012-12-24 | Non-linear liquid steel flowing channel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203030854U true CN203030854U (en) | 2013-07-03 |
Family
ID=48682995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220718365 Expired - Lifetime CN203030854U (en) | 2012-12-24 | 2012-12-24 | Non-linear liquid steel flowing channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203030854U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374069A (en) * | 2018-04-03 | 2018-08-07 | 中冶赛迪工程技术股份有限公司 | A kind of electric furnace lacks slag tapping method and skimming device |
| CN110052596A (en) * | 2019-05-27 | 2019-07-26 | 东北大学 | Butterfly induction heating tundish |
| CN114789237A (en) * | 2022-04-22 | 2022-07-26 | 新兴铸管股份有限公司 | Molten iron guiding gutter device |
-
2012
- 2012-12-24 CN CN 201220718365 patent/CN203030854U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108374069A (en) * | 2018-04-03 | 2018-08-07 | 中冶赛迪工程技术股份有限公司 | A kind of electric furnace lacks slag tapping method and skimming device |
| CN108374069B (en) * | 2018-04-03 | 2024-02-23 | 中冶赛迪工程技术股份有限公司 | Slag-less tapping method and slag blocking device for electric furnace |
| CN110052596A (en) * | 2019-05-27 | 2019-07-26 | 东北大学 | Butterfly induction heating tundish |
| CN110052596B (en) * | 2019-05-27 | 2021-03-26 | 东北大学 | Butterfly type induction heating tundish |
| CN114789237A (en) * | 2022-04-22 | 2022-07-26 | 新兴铸管股份有限公司 | Molten iron guiding gutter device |
| CN114789237B (en) * | 2022-04-22 | 2023-09-05 | 新兴铸管股份有限公司 | Molten iron guiding groove device |
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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: 20130703 |
|
| CX01 | Expiry of patent term |