CN107716882A - A kind of crystallizer with impinging cooling structure - Google Patents
A kind of crystallizer with impinging cooling structure Download PDFInfo
- Publication number
- CN107716882A CN107716882A CN201711259849.0A CN201711259849A CN107716882A CN 107716882 A CN107716882 A CN 107716882A CN 201711259849 A CN201711259849 A CN 201711259849A CN 107716882 A CN107716882 A CN 107716882A
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- CN
- China
- Prior art keywords
- crystallizer
- cooling water
- slit
- water spout
- crystallizer copper
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/055—Cooling the moulds
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Nozzles (AREA)
Abstract
It is a kind of to be used for steel-making continuous casting, the crystallizer with impinging cooling structure：Position, horizontally disposed slit cooling water spout below crystallizer meniscus, are trapped among crystallizer copper pipe surrounding；Between cooling water spout and crystallizer copper wall, provided with the flat tube as impact passage；High-Pressure Water sprays from slit cooling water spout, by impacting passage, in a manner of the high impinging cooling of Local Heat Transfer rate, heat flow and temperature highest crystallizer meniscus is strengthened with lower portion and cooled down.
Description
Technical field
The invention belongs to make steel continuously casting field, more particularly to a kind of crystallizer with impinging cooling structure.
Background technology
During continuous casting steel machine, high-temperature molten steel is continuously injected into crystallizer, and cooling, solidification give off heat, and heat passes through knot
Brilliant device copper wall, by the cooling water for flowing through crystallizer copper wall outer surface heat is taken away.Close to crystallizer copper wall molten steel solidification into
Shell, with shell wick-containing depart from crystallizer.
Crystallizer copper wall should strengthen this area the heat flow of meniscus region below is maximum, copper wall temperature highest during continuous casting
The cooling in domain.Production small billet, garden base and the widely used water seam crystallizer of slab at present, cooling water is outside crystallizer copper wall
Flowed through from bottom to top in the water seam formed between surface and diversion water jacket inner surface and crystallizer copper wall is cooled down, to crystallizer
The intensity of cooling difference at each position of copper wall is little.
To solve the above problems, many of prior art solution.For example, Chinese patent " 97107310.4 " is open
A kind of solution of spray mold：Cooled down, sprayed to crystallizer copper tube outer surface injection water using water injector
Jet density the distribution that top is big, bottom is small is longitudinally presented along crystallizer copper pipe, be laterally presented that middle part is big, corner is small along it
Distribution, such spray crystallizer use water-spraying control mode, and jet density can be distributed according to crystallizer hot-fluid rule, but
Because spray water flow array is arranged, the interference of adjacent current, limits intensity of cooling after crystallizer copper pipe surface is ejected into
Further raising.
Chinese patent " 95225036.5 " discloses a kind of improvement project for spraying crystallizer：By the cooling of crystallizer copper pipe
Be divided into two parts, upper part up and down and use spraying cooling, lower part using the cooling of water seam, used between two parts dividing plate every
Open, this scheme avoids the influence that top shower water cools down to bottom, but still does not solve the interference problem of adjacent current.
Chinese patent " 03154548.3 " discloses a kind of scheme：The tube wall on copper pipe top is thinned, to reduce the heat of tube wall
Resistance, the cooling effectiveness of the high heat flow province of copper pipe is improved, but because the thickness that the thermal conductivity factor of copper is high and is thinned is small, to reducing tube wall heat
It is limited to hinder effect.
Chinese patent " 200610163731.3 " discloses a kind of scheme：Set in the outer surface on crystallizer copper pipe top cold
But groove, except the mm regions of elongation portion 10~15, cooling bath adds heat exchange area and the coefficient of heat transfer, but cooling effectiveness improves
Limited extent, cooling bath will cause stress concentration, reduce copper pipe intensity, shorten the service life of crystallizer copper pipe.
The content of the invention
Present invention aim to address the deficiency in above-mentioned technology, there is provided a kind of crystallizer with impinging cooling structure,
Emphasis improves the intensity of cooling of crystallizer meniscus region below.
The technical scheme is that surrounding crystallizer copper tube outer surface meniscus region below, slit cooling water is set
Spout, cooling water are sprayed from the slit of spout, crystallizer copper pipe surface are impacted in a manner of jet, strengthens the cooling at this position.
Realizing the structure of the reinforcing cooler crystallizer of technical solution of the present invention is：A kind of crystallization with impinging cooling structure
Device, including crystallizer copper wall, it is characterised in that be provided with slit cooling water spout outside crystallizer copper wall, the slit cooling water
Spout is relative with the outer surface interval of the cooled part of the crystallizer copper wall.
Slit cooling water spout of the present invention, it is characterised in that：Described slit cooling water spout is away from crystallization
In the range of device copper wall 10 to 400 height suitable for reading.
Crystallizer of the present invention, it is characterised in that：Sprayed using High-Pressure Water from slit cooling water spout, with
The mode of jet impulse heat convection is forced to cool down crystallizer copper wall.
Crystallizer of the present invention, it is characterised in that：Between the slit cooling water spout and crystallizer copper wall,
Impact passage is provided with, described impact passage is flat gradually to be expanded from slit cooling water spout to crystallizer copper wall direction
Pipe, the flat tube one end are connected with slit cooling water spout, and the other end leaves high pressure water flow strikes between crystallizer copper wall
The gap flowed out after crystallizer copper wall, described gap is in 5~80 mm scopes.
From after the ejection of slit cooling water spout, the width of jet becomes larger cooling water, is sprayed after a segment distance
To crystallizer copper pipe surface.
Crystallizer of the present invention, it is characterised in that：The distance of the slit cooling water spout and crystallizer copper wall
In the range of 2~260 mm.
Slit cooling water spout of the present invention, it is characterised in that：The width of slit is in the range of 1~60 mm.
High-Pressure Water of the present invention, it is characterised in that：It can also be the high-pressure fluid of the gentle mixed aerosol of water.
Slit cooling water spout of the present invention, it is characterised in that：The slit cooling water spout is horizontally disposed with,
It is trapped among crystallizer copper pipe surrounding.
Crystallizer of the present invention, it is characterised in that：Slit cooling water corresponding to the outer surface of each crystallizer copper wall
Spout can be one or multiple.
Slit cooling water spout of the present invention, it is characterised in that：The slit of the slit cooling water spout can
To be grid shape.
The present invention has the positive effect that.
A kind of crystallizer with impinging cooling structure of the present invention is using the high slit impinging cooling side of localized heat transfer rate
Formula, strengthen the cooling to heat flow and temperature highest crystallizer meniscus position, significantly improve the cooling effect of whole crystallizer
Rate.
Brief description of the drawings
Fig. 1 is a kind of crystallizer longitudinal profile schematic diagram with impinging cooling structure.
In figure, 1 is cooling water spout, and 2 be cooling water spout import, and 3 be cooling water spout outlet, and 4 be crystallizer copper pipe,
5 be crystallizer water jacket, and 6 be that crystallizer water stitches, and arrow is flow of cooling water direction in figure.
Embodiment
The invention will be further described with reference to the accompanying drawings and detailed description.
Embodiment.
By taking 150 square blank crystallizers as an example, copper pipe length 900mm, meniscus are away from crystallizer 50mm suitable for reading, in crystallizer bent moon
The maximum position of 50mm heat flows uses slit impinging cooling mode under face, and meniscus below and above still uses water seam knot
Structure.
Fig. 1 be the present invention a kind of crystallizer with impinging cooling structure in, the structure of slit impinging cooling part shows
It is intended to.In crystallizer copper pipe meniscus position, 4 cooling water spouts are set（1）, it is trapped among crystallizer copper pipe（4）Surrounding, Mei Gejie
Brilliant device copper pipe（4）The corresponding 1 cooling water nozzle outlet in surface（3）, slit distance between center line crystallizer copper pipe 100mm suitable for reading..
Cooling water spout（1）It is flat annular channel, cooling water spout import（2）For slit, slit is horizontally disposed with, slit mouth
Face crystallizer copper pipe（4）, slit width 10mm, slit length 130mm, cooling water spout import（2）Slit and crystallizer
Copper pipe（4）The distance of outer surface is 100mm.
The width of the flat annular channel of its spout becomes larger from import to export direction.By cooling water nozzle import（2）Arrive
Cooling water nozzle exports（3）Axis and crystallizer copper pipe（4）Outer surface is vertical.
Using the described cooling water spout of the present invention, the cooling water with pressure sprays from the slit of spout, jet
Width is become larger, and the position of crystallizer copper pipe surface heat maximum flow is ejected into after 100mm stream distance, strengthens this
The cooling at position.
Claims (10)
1. a kind of crystallizer with impinging cooling structure, including crystallizer copper wall, it is characterised in that set outside crystallizer copper wall
There is slit cooling water spout, the slit cooling water spout and the outer surface interval phase of the cooled part of the crystallizer copper wall
It is right.
2. slit cooling water spout according to claim 1, it is characterised in that：Described slit cooling water spout away from
In crystallizer copper wall suitable for reading 10 to 400mm altitude ranges.
3. crystallizer according to claim 1, it is characterised in that：Sprayed using High-Pressure Water from slit cooling water spout
Go out, crystallizer copper wall is cooled down in a manner of forcing jet impulse heat convection.
4. crystallizer according to claim 1, it is characterised in that：In the slit cooling water spout and crystallizer copper wall
Between, impact passage is provided with, described impact passage is gradually to expand from slit cooling water spout to crystallizer copper wall direction
Flat tube, the flat tube one end be connected with slit cooling water nozzle mouth, the other end leaves high pressure between crystallizer copper wall
The gap flowed out after water impact crystallizer copper wall, described gap is in 5~80 mm scopes.
5. crystallizer according to claim 1, it is characterised in that：The slit cooling water spout and crystallizer copper wall
Distance is in the range of 2~260 mm.
6. slit cooling water spout according to claim 1, it is characterised in that：The width of slit is in 1~60 mm scopes
It is interior.
7. High-Pressure Water according to claim 2, it is characterised in that：It can also be the high-pressure spray of the gentle mixed aerosol of water
Body.
8. slit cooling water spout according to claim 1, it is characterised in that：The slit cooling water spout is horizontal
Set, be trapped among crystallizer copper pipe surrounding.
9. according to crystallizer described in claim 1, it is characterised in that：Slit cooling corresponding to the outer surface of each crystallizer copper wall
Water spout can be one or multiple.
10. slit cooling water spout according to claim 1, it is characterised in that：The slit cooling water spout
Slit can be grid shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259849.0A CN107716882A (en) | 2017-12-04 | 2017-12-04 | A kind of crystallizer with impinging cooling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711259849.0A CN107716882A (en) | 2017-12-04 | 2017-12-04 | A kind of crystallizer with impinging cooling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107716882A true CN107716882A (en) | 2018-02-23 |
Family
ID=61220303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711259849.0A Pending CN107716882A (en) | 2017-12-04 | 2017-12-04 | A kind of crystallizer with impinging cooling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107716882A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405171A (en) * | 2019-08-28 | 2019-11-05 | 东北大学 | Cooling procedure can precisely match the electromagnetism semi-continuous casting device and method of adjusting |
-
2017
- 2017-12-04 CN CN201711259849.0A patent/CN107716882A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110405171A (en) * | 2019-08-28 | 2019-11-05 | 东北大学 | Cooling procedure can precisely match the electromagnetism semi-continuous casting device and method of adjusting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |