CN210615053U - Residual secondary cooling water blowing device on surface of casting blank - Google Patents
Residual secondary cooling water blowing device on surface of casting blank Download PDFInfo
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- CN210615053U CN210615053U CN201921605626.XU CN201921605626U CN210615053U CN 210615053 U CN210615053 U CN 210615053U CN 201921605626 U CN201921605626 U CN 201921605626U CN 210615053 U CN210615053 U CN 210615053U
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Abstract
The utility model discloses a two remaining cold water in casting blank surface sweep device, including the connecting hose that is used for connecting compressed air source with be used for fixed position the support steel pipe and be used for sweeping the pipe that sweeps of casting blank surface residual water, connecting hose links to each other with the one end that supports the steel pipe, sweep the pipe for relative a pair of that sets up, a pair of pipe that sweeps is established on the other end that supports the steel pipe, the direction slope that blows of sweeping the pipe is downward. And blowing the residual secondary cooling water on the surface of the casting blank by using compressed air, so that the residual secondary cooling water is blown to the edge from the middle of the casting blank and flows out, and the continuous cooling of the casting blank by the residual secondary cooling water is avoided, so that the straightening temperature of the casting blank is increased, the casting blank is uniformly cooled, a third brittle zone of the casting blank is avoided, and the transverse crack defect of the casting blank is controlled.
Description
Technical Field
The utility model belongs to the technical field of the casting technique and specifically relates to a casting blank surface residual two cold water sweep device is related to.
Background
At present, the casting blank produced by an extra-thick slab continuous casting machine has a large section and a slow drawing speed, although the secondary cooling adopts weak cooling, the specific water amount is only 0.33L/Kg, about 30 percent of water amount is vaporized and volatilized after the secondary cooling atomized water is sprayed to the inner arc surface of the casting blank, the rest 70 percent of water amount flows downwards along the length direction of the casting blank, most of the water amount is concentrated at about 1/4 parts of the width direction of the casting blank at the lower part of a spray gun, the rest water amount stays at the inner arc surface of the casting blank and continuously cools the casting blank, so that the surface temperature of the casting blank is lower, the casting blank is cooled unevenly, and the transverse.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model aims to solve the technical problem that a remaining two cold water in casting blank surface sweep device is provided, it sweeps out remaining two cold water fast, can improve casting blank aligning temperature, reduces the horizontal crack defect.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the casting blank surface residual secondary cooling water purging device comprises a connecting hose used for being connected with a compressed air source, a supporting steel pipe used for fixing a position and a purging pipe used for purging residual water on the surface of a casting blank, wherein the connecting hose is connected with one end of the supporting steel pipe, the purging pipes are in a pair which are oppositely arranged, the pair of purging pipes are arranged at the other end of the supporting steel pipe, and the blowing direction of the purging pipes is inclined downwards.
Furthermore, the purging pipes are symmetrically arranged on two sides of the supporting steel pipe.
The distance between the blowing opening of the blowing pipe and the surface of the casting blank is 8-12 mm.
The downward inclination angle of the blowing direction of the blowing pipe is 8-12 degrees.
The supporting steel pipe and the purging pipe are both stainless steel pipes.
The bottom of the purging pipe is provided with a group of purging holes which are inclined outwards.
Compared with the prior art, the utility model, have following advantage:
the device for purging the residual secondary cooling water on the surface of the casting blank is reasonable in structural design, and the residual secondary cooling water on the surface of the casting blank is purged by using compressed air, so that the residual secondary cooling water is blown to the edge from the middle of the casting blank to flow out, the continuous cooling of the casting blank by the residual secondary cooling water is avoided, the straightening temperature of the casting blank is improved, the casting blank is uniformly cooled, a third brittle zone of the casting blank is avoided, and the transverse crack defect of the casting blank is controlled.
Drawings
The contents of the description and the references in the drawings are briefly described as follows:
fig. 1 is the schematic view of the purging device of the present invention.
In the figure:
1. the method comprises the following steps of connecting a hose, 2 supporting steel pipes, 3 purging pipes and 4 casting blanks.
Detailed Description
The following description of the embodiments of the present invention will be made in detail with reference to the accompanying drawings.
As shown in fig. 1, the casting blank surface residual secondary cooling water purging device comprises a connecting hose 1 for connecting a compressed air source, a supporting steel pipe 2 for fixing a position and a purging pipe 3 for purging residual water on the surface of a casting blank 4; one end of the connecting hose 1 is connected with a compressed air source, the other end of the connecting hose is connected with one end of the supporting steel pipe 2, the purging pipes 3 are oppositely arranged, one pair of purging pipes are arranged at the other end of the supporting steel pipe, and the blowing direction of the purging pipes is inclined downwards.
And blowing the residual secondary cooling water on the surface of the casting blank by using compressed air, so that the residual secondary cooling water is blown to the edge from the middle of the casting blank and flows out, and the continuous cooling of the casting blank by the residual secondary cooling water is avoided, so that the straightening temperature of the casting blank is increased, the casting blank is uniformly cooled, a third brittle zone of the casting blank is avoided, and the transverse crack defect of the casting blank is controlled.
Preferred specific examples are:
the supporting steel pipe 2 and the blowing pipe 3 are of a T-shaped structure, the blowing pipes are a pair, the blowing pipes are symmetrically welded at one end of the supporting steel pipe and communicated with each other, and the blowing pipes are located on two sides of the supporting steel pipe.
The supporting steel pipe and the purging pipe are both stainless steel pipes. The distance between a blowing opening of the blowing pipe and the surface of the casting blank is 8-12 mm; the downward inclination angle of the blowing direction of the blowing pipe is 8-12 degrees, and the bottom of the blowing pipe is provided with a group of blowing holes which are inclined outwards; the purging effect is good.
In particular to a method for preparing a high-performance nano-silver alloy,
the blowing device is made by welding stainless steel pipes with the diameter of 16mm, the length of 400mm and the height of 2m into a T shape, compressed air is introduced into the T-shaped vertical connecting leather pipe, the T-shaped transverse part is close to the surface of the casting blank and is about 10mm away from the surface of the casting blank, and the T-shaped transverse part is 10 degrees below the T-shaped transverse part, so that the compressed air is blown to the surface of the casting blank from two sides of the T-shaped device, residual secondary cooling water can be blown out from the surface of the casting blank to the edge part, and the surface temperature of the casting blank is.
After the residual secondary cooling water is used for blowing the device, the surface temperature of the casting blank can be improved by 80-100 ℃ through actual measurement compared with that before the casting blank is used, and the casting blank can successfully avoid a third brittle zone for straightening, so that the transverse crack defect of the surface of the casting blank is reduced; statistics shows that after the residual secondary cooling water purging device is used, the incidence rate of transverse cracks on the surface of the casting blank is reduced to 3.1% from 8.3%, the defective rate of the transverse cracks is reduced to 0.8% from 1.9%, and the quality of the casting blank is greatly improved.
The above-mentioned features are merely for describing preferred embodiments of the present invention and may be arbitrarily combined to form a plurality of embodiments of the present invention.
The present invention has been described in detail with reference to the accompanying drawings, and it is apparent that the present invention is not limited by the above embodiments, and various insubstantial improvements can be made without modification to the present invention.
Claims (6)
1. The utility model provides a residual two cold water purge device in casting blank surface which characterized in that: the blowing device comprises a connecting hose used for connecting a compressed air source, a supporting steel pipe used for fixing a position and a blowing pipe used for blowing residual water on the surface of a casting blank, wherein the connecting hose is connected with one end of the supporting steel pipe, the blowing pipes are a pair of blowing pipes which are oppositely arranged, one pair of blowing pipes are arranged at the other end of the supporting steel pipe, and the blowing direction of the blowing pipes is inclined downwards.
2. The residual secondary cooling water blowing device for the surface of the casting blank according to claim 1, which is characterized in that: the blowing pipes are symmetrically arranged on two sides of the supporting steel pipe.
3. The residual secondary cooling water blowing device for the surface of the casting blank according to claim 1, which is characterized in that: the distance between the blowing opening of the blowing pipe and the surface of the casting blank is 8-12 mm.
4. The residual secondary cooling water blowing device for the surface of the casting blank according to claim 1, which is characterized in that: the downward inclination angle of the blowing direction of the blowing pipe is 8-12 degrees.
5. The residual secondary cooling water blowing device for the surface of the casting blank according to claim 1, which is characterized in that: the supporting steel pipe and the purging pipe are both stainless steel pipes.
6. The residual secondary cooling water blowing device for the surface of the casting blank according to claim 1, which is characterized in that: the bottom of the purging pipe is provided with a group of purging holes which are inclined outwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605626.XU CN210615053U (en) | 2019-09-25 | 2019-09-25 | Residual secondary cooling water blowing device on surface of casting blank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921605626.XU CN210615053U (en) | 2019-09-25 | 2019-09-25 | Residual secondary cooling water blowing device on surface of casting blank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210615053U true CN210615053U (en) | 2020-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921605626.XU Active CN210615053U (en) | 2019-09-25 | 2019-09-25 | Residual secondary cooling water blowing device on surface of casting blank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210615053U (en) |
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2019
- 2019-09-25 CN CN201921605626.XU patent/CN210615053U/en active Active
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