CN207255235U - A kind of crystallizer immersion rotates the mouth of a river - Google Patents
A kind of crystallizer immersion rotates the mouth of a river Download PDFInfo
- Publication number
- CN207255235U CN207255235U CN201721262503.1U CN201721262503U CN207255235U CN 207255235 U CN207255235 U CN 207255235U CN 201721262503 U CN201721262503 U CN 201721262503U CN 207255235 U CN207255235 U CN 207255235U
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- mouth
- river
- molten steel
- crystallizer
- screw type
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The purpose of this utility model is to solve the problems, such as that mold gap exists in continuous casting extra-thick plate blank production in the prior art, there is provided a kind of crystallizer immersion rotates the mouth of a river, belongs to field of iron and steel smelting.The crystallizer immersion rotates the mouth of a river, is cylindrical type, and the top of the cylinder is equipped with molten steel water inlet, and bottom is equipped with molten steel water outlet, and the screw type runner for connecting the molten steel water inlet and water outlet is provided with cylinder.The mouth of a river uses spiral flow channel, the temperature of the big special heavy plate crystallizer corner of section can preferably be supplemented, so that Mold mobility strengthens, temperature gradient diminishes, isothermal level expands, and is conducive to the floating of field trash and bubble so that molten steel component more homogenizes, the shrinkage cavity at dead angle in crystallizer is reduced, improves the quality of extra-thick plate blank.
Description
Technical field
The utility model belongs to field of iron and steel smelting, and in particular to rotates the mouth of a river to a kind of crystallizer immersion.
Background technology
Crystallizer is the heart of casting process, and the mouth of a river is then the throat of crystallizer.Submersed nozzle is not only by
Between the molten steel that wraps drain into crystallizer, more important is the flow field of molten steel in a crystallizer is changed, unreasonable flow field can be led
Component mixing is uneven in cause molten steel, and Slag inclusion and bubble are not easy to float, and temperatures at localized regions gradient is excessive, or even slag etc. is tight
The phenomenon that ghost image rings slab quality occurs.
General mold gap all contains base, and the molten steel for flowing through the mouth of a river directly washes away base, adds in crystallizer
The field trash of molten steel.And in the strand production of big cross section, since pulling rate reduces so that blocking often occurs in the mouth of a river originally
Or the situation of bias current, cause crystallizer flow field disorderly, cause wide face direction temperature gradient excessive so that molten steel temperature and into
Point uneven, its result drastically influence the quality of extra-thick plate blank and there are very big security risk.
In the prior art, the Chinese patent of Patent No. CN203610664U, by using sectionally assembled crystallizer water
Although mouth can reduce the direction washed away and change crystallizer flow field of the molten steel to the mouth of a river, stream stock can not add to wide face side
Boundary, can not meet the temperature feeding at big cross section casting blank crystallizer edge；The Chinese patent of Patent No. CN201603852U, is adopted
It can improve slag phenomenon in the case of certain flow rate with the mesoporous and the side opening mouth of a river of optimization, but since water outlet side opening only dips down
Tiltedly, stock impact side-lower is flowed, can not make it that the horizontal wide face direction temperature of water outlet is quickly supplemented, and in the big situation of flow velocity
Under be also possible to wash away solidified shell and produce security risk；A kind of Chinese patent of Patent No. CN2737488Y, there is provided endoporus
It is obvious for wide and thick slab crystallizer flow field improvement for oval or pancake mouth of a river, but due to its mouth of a river flat horizontal surface
Biggest size of element is greater than slab thickness, and during continuous casting of ultra-thick plate, strand its thickness is larger, process the mouth of a river into
This is higher, its economic benefit is relatively low.
Utility model content
The purpose of this utility model is existed to solve mold gap in continuous casting extra-thick plate blank production in the prior art
The problem of, there is provided a kind of crystallizer immersion rotates the mouth of a river.The mouth of a river uses spiral flow channel, and is not provided with base, can be more
The temperature of the big special heavy plate crystallizer corner of good supplement section so that Mold mobility strengthens, and temperature gradient becomes
Small, isothermal level expands, and is conducive to the floating of field trash and bubble so that molten steel component more homogenizes, and reduces in crystallizer
The shrinkage cavity at dead angle, improves the quality of extra-thick plate blank.
A kind of crystallizer immersion rotates the mouth of a river, is cylindrical type, the top of the cylinder is equipped with molten steel water inlet, and bottom is set
There is molten steel water outlet, the screw type runner for connecting the molten steel water inlet and water outlet is provided with cylinder；
Further, the internal diameter of the screw type runner, molten steel water inlet and water outlet is round；
Further, the helix of the screw type runner center line composition is circular helix；
Further, when the mouth of a river is used for wide and thick slab continuous casting, the internal diameter of the screw type runner is 45-85mm；
When the mouth of a river is used for sheet billet, round billet or billet continuous casting, the internal diameter of the screw type runner is 15-35mm；
Further, when the mouth of a river is used for wide and thick slab continuous casting, center line and the water of the screw type runner
The angle of the center line of mouth cylinder is 30 °≤α≤60 °；It is described when the mouth of a river is used for sheet billet, round billet or billet continuous casting
The center line of screw type runner and the angle of the center line of the mouth of a river cylinder are 0 ° of 30 ° of ＜ α ＜.
Compared with prior art, the advantage of the utility model is：
Screw-shaped flow paths are furnished with inside the mouth of a river of the utility model, therefore, the molten steel come out from tundish flows through the mouth of a river
When, stream stock flow direction from being changed into spiral helicine circular motion straight down, after water outlet flow stock under effect of inertia still
Make spiral circular motion, so that multi-direction stirring molten steel, also, flow through helical flow path under the effect of gravity and can produce the dynamic of bigger
Energy, can preferably supplement the temperature of the big special heavy plate crystallizer corner of section so that Mold mobility strengthens, temperature
Gradient diminishes, and isothermal level expands, and is conducive to the floating of field trash and bubble so that molten steel component more homogenizes, and decrease is finished
The shrinkage cavity at dead angle in brilliant device, improves the quality of extra-thick plate blank.
Brief description of the drawings
The mouth of a river diagrammatic cross-section of Fig. 1, the utility model embodiment 1；
Fig. 2, the utility model embodiment 1 stream stock-traders' know-how water outlet after flow direction；
The mouth of a river top view of Fig. 3, the utility model embodiment 1；
Wherein, 1, water inlet, 2, water outlet, 3, the mouth of a river, 4, screw type runner.
Embodiment
Embodiment 1
A kind of crystallizer immersion for wide and thick slab continuous casting rotates the mouth of a river 3, is cylindrical type as shown in Figures 1 to 3, institute
The top for stating cylinder is equipped with molten steel water inlet 1, and bottom is equipped with molten steel water outlet 2, be provided with cylinder the connection molten steel into
The mouth of a river and the screw type runner 4 of water outlet；
Wherein, the internal diameter of the screw type runner, molten steel water inlet and water outlet is round；The screw type runner center
The helix of line composition is circular helix；The internal diameter of the screw type runner is 45-85mm；The center of the screw type runner
The angle of line and the center line of the mouth of a river cylinder is 30 °≤α≤60 °.
Screw type runner is furnished with inside the mouth of a river of the utility model, therefore, the molten steel come out from tundish flows through the mouth of a river
When, stream stock flow direction from being changed into spiral helicine circular motion straight down, after water outlet flow stock under effect of inertia still
Make spiral circular motion, so that multi-direction stirring molten steel, also, flow through helical flow path under the effect of gravity and can produce the dynamic of bigger
Energy, can preferably supplement the temperature of the big special heavy plate crystallizer corner of section so that Mold mobility strengthens, temperature
Gradient diminishes, and isothermal level expands, and is conducive to the floating of field trash and bubble so that molten steel component more homogenizes, and decrease is finished
The shrinkage cavity at dead angle in brilliant device, improves the quality of extra-thick plate blank.
Embodiment 2
A kind of crystallizer immersion for sheet billet, round billet or billet continuous casting rotates the mouth of a river, is cylindrical type, the cylinder
Top be equipped with molten steel water inlet, bottom is equipped with molten steel water outlet, and the connection molten steel water inlet is provided with cylinder and is gone out
The screw type runner at the mouth of a river；
Wherein, the internal diameter of the screw type runner, molten steel water inlet and water outlet is round；The screw type runner center
The helix of line composition is circular helix；The internal diameter of the screw type runner is 15-35mm；The center of the screw type runner
The angle of line and the center line of the mouth of a river cylinder is 0 ° of 30 ° of ＜ α ＜.
Claims (5)
- It is cylindrical type 1. a kind of crystallizer immersion rotates the mouth of a river, it is characterised in that the top of the cylinder intakes equipped with molten steel Mouthful, the bottom of the cylinder is equipped with molten steel water outlet, also, the connection molten steel water inlet and steel are provided with the cylinder The screw type runner of liquid water outlet.
- A kind of 2. crystallizer immersion rotation mouth of a river according to claim 1, it is characterised in that the screw type runner, The internal diameter of molten steel water inlet and molten steel water outlet is round.
- 3. a kind of crystallizer immersion rotation mouth of a river according to claim 1, it is characterised in that in the screw type runner The helix that heart line is formed is circular helix.
- 4. a kind of crystallizer immersion rotation mouth of a river according to claim 1, it is characterised in that when the mouth of a river is used for width During slab CC machine, the internal diameter of the screw type runner is 45-85mm；Connect when the mouth of a river is used for sheet billet, round billet or square billet During casting, the internal diameter of the screw type runner is 15-35mm.
- 5. a kind of crystallizer immersion rotation mouth of a river according to claim 1, it is characterised in that when the mouth of a river is used for width During slab CC machine, the center line of the screw type runner and the angle of the mouth of a river cylinder axis are 30 °≤α≤60 °；Work as institute When stating the mouth of a river for sheet billet, round billet or billet continuous casting, the center of the center line of the screw type runner and the mouth of a river cylinder The angle of line is 0 ° of 30 ° of ＜ α ＜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721262503.1U CN207255235U (en) | 2017-09-29 | 2017-09-29 | A kind of crystallizer immersion rotates the mouth of a river |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721262503.1U CN207255235U (en) | 2017-09-29 | 2017-09-29 | A kind of crystallizer immersion rotates the mouth of a river |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207255235U true CN207255235U (en) | 2018-04-20 |
Family
ID=61919541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721262503.1U Expired - Fee Related CN207255235U (en) | 2017-09-29 | 2017-09-29 | A kind of crystallizer immersion rotates the mouth of a river |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207255235U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723348A (en) * | 2018-06-11 | 2018-11-02 | 江苏集萃先进金属材料研究所有限公司 | A kind of devices and methods therefor improving vacuum induction melting ingot mould undermining |
| CN114535558A (en) * | 2022-03-09 | 2022-05-27 | 河南省西交轻质合金新材料研究院有限公司 | Control device and method for liquid flow during magnesium alloy semi-continuous casting starting |
-
2017
- 2017-09-29 CN CN201721262503.1U patent/CN207255235U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108723348A (en) * | 2018-06-11 | 2018-11-02 | 江苏集萃先进金属材料研究所有限公司 | A kind of devices and methods therefor improving vacuum induction melting ingot mould undermining |
| CN114535558A (en) * | 2022-03-09 | 2022-05-27 | 河南省西交轻质合金新材料研究院有限公司 | Control device and method for liquid flow during magnesium alloy semi-continuous casting starting |
| CN114535558B (en) * | 2022-03-09 | 2024-06-07 | 河南省西交轻质合金新材料研究院有限公司 | Control device and method for liquid flow during starting of magnesium alloy semi-continuous casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180420 Termination date: 20200929 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |