CN110722148A - Tundish argon gas replacement device and tundish argon gas replacement method - Google Patents
Tundish argon gas replacement device and tundish argon gas replacement method Download PDFInfo
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- CN110722148A CN110722148A CN201911005818.1A CN201911005818A CN110722148A CN 110722148 A CN110722148 A CN 110722148A CN 201911005818 A CN201911005818 A CN 201911005818A CN 110722148 A CN110722148 A CN 110722148A
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- argon
- tundish
- argon gas
- argon blowing
- package
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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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/50—Pouring-nozzles
- B22D41/58—Pouring-nozzles with gas injecting means
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The invention discloses a tundish argon displacement device and a tundish argon displacement method, wherein the tundish argon displacement device comprises a hollow H-shaped argon blowing head, an argon blowing pipe communicated with the hollow structure of the H-shaped argon blowing head, and a fixed support arranged on the outer wall of the argon blowing pipe, wherein the other end of the argon blowing pipe is communicated with an argon source; wherein, a plurality of argon blowing holes communicated with the hollow structure are distributed on the side wall of the H-shaped argon blowing head; wherein, H type blows argon head can toast the hole through middle package and get into middle package inside, and, the fixed bolster can block to be located the outside that the hole was toasted to middle package. This package in argon gas replacement device not only can follow the package in and toast the hole and get into package in the inside below and replace the air, has great area of contact moreover, has improved the package and has opened the argon gas replacement effect before watering, has strengthened the casting blank internal quality of continuous casting first stove.
Description
Technical Field
The invention relates to optimization of casting process equipment, in particular to a tundish argon gas replacement device and a tundish argon gas replacement method.
Background
At present, the internal quality of a casting blank cast by a first furnace in continuous casting is often poorer than that of a casting blank obtained by a subsequent furnace in continuous casting, and a conventional solution is that more additives are added into the first furnace than other subsequent furnaces in a ladle so as to ensure that the internal quality of a first furnace billet is good. We have conducted various research and exploration and found that the problem may be caused by the poor effect of first-furnace argon replacement: at present, the foundry continuous casting workshop uses the self-made argon blowing pipe, blows argon after connecting the stopper stick, but, in the use, we verify through the practice of system, and the discovery is wrapped the air replacement effect of bottom relatively poor in for the protection pouring effect of opening and watering heat can not obtain the guarantee.
Through many verification, we find that the position of the middle ladle argon blowing before casting is not easy to fix due to the influence of a stopper rod mechanism, and the argon blowing pipe cannot stretch into the casting ladle too long due to the safety angle, so that the air above the middle ladle can be replaced only by 200mm or so after argon blowing due to the limitation of the stretching length, the air replacement effect at the bottom of the middle ladle is poor, and the casting protection effect of the casting furnace is not guaranteed. And the branch pipe is formed by welding, and the influence of the quality of welding on the argon blowing effect is large.
Disclosure of Invention
The invention aims to overcome the technical problem of poor internal quality of a casting blank cast by a first furnace in continuous casting in the prior art, and provides a tundish argon replacement device and a tundish argon replacement method.
In order to achieve the purpose, the invention provides a tundish argon gas replacement device which comprises a hollow H-shaped argon blowing head, an argon blowing pipe and a fixed support, wherein the argon blowing pipe is communicated with the hollow structure of the H-shaped argon blowing head; wherein, a plurality of argon blowing holes communicated with the hollow structure are distributed on the side wall of the H-shaped argon blowing head; wherein, H type blows argon head can toast the hole through middle package and get into middle package inside, and, the fixed bolster can block to be located the outside that the hole was toasted to middle package.
Preferably, the argon blowing pipe is connected with the middle part of the transverse part of the H-shaped argon blowing head.
Preferably, adjacent argon blowing holes are spaced 40-60mm apart.
Preferably, the argon-blowing holes have a diameter of 4-6 mm.
Preferably, the distance between the fixing bracket and the top of the H-shaped argon blowing head is 650-690 mm.
Preferably, the H-type argon blowing head is 350-450mm in length and 280-320mm in width, wherein the length of the cross section of the H-type argon blowing head is 210-230 mm.
Preferably, the H-shaped argon blowing head is formed by welding stainless steel plates with the thickness of 4-6 mm.
Preferably, the pipe diameter of the argon blowing pipe is 9-11 mm.
The invention also provides a tundish argon replacement method, which comprises the step of performing argon replacement on a tundish by blowing argon before casting by using the tundish argon replacement device.
Preferably, the method comprises the following steps: before casting, blow the argon head with the H type and follow well package baking hole stretch into well package inside, locate the fixed bolster card the outside in well package baking hole, the intercommunication blows argon pipe 1 and argon gas source, carries out the argon filling replacement to the air in the well package.
Like this, before casting, blow the argon head with the H type and bake the hole and stretch into well package inside from well package, locate the fixed bolster card the outside in package baking hole, the intercommunication blows argon pipe and argon gas source, carries out the argon filling replacement to the air in the package. The H type blows the argon head and toasts the hole from well package and stretch into well package inside and can replace the air of well package inside below, H type blows and has arranged a plurality ofly on the argon head lateral wall and blow the argon hole that link up with hollow structure, make argon can discharge from a plurality of holes, change into the face contact from the point contact with well package air, increase area of contact, the argon replacement effect before the well package is opened and is watered has been improved, the casting blank internal quality of the first stove of continuous casting has been strengthened, make the steel blank internal quality that the first stove obtained in the continuous casting and the steel blank internal quality that the follow-up stove obtained not have obvious difference.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic front view of a tundish argon gas replacement device in a preferred embodiment of the invention;
fig. 2 is a schematic side view of a tundish argon gas replacement device in a preferred embodiment of the invention.
Description of the reference numerals
1 argon blowing pipe 2 fixed bolster
3H type argon blowing head 4 argon blowing hole
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, unless otherwise specified, the directional words "upper, lower, top, side" and the like included in a term merely represent the orientation of the term in a conventional use state or a colloquial meaning understood by those skilled in the art, and should not be construed as limiting the term.
As shown in fig. 1 and 2, the invention provides a tundish argon gas replacement device, which comprises a hollow H-shaped argon blowing head 3, an argon blowing pipe 1 communicated with the hollow structure of the H-shaped argon blowing head 3, and a fixed support 2 arranged on the outer wall of the argon blowing pipe 1, wherein the other end of the argon blowing pipe 1 is communicated with an argon gas source; wherein, a plurality of argon blowing holes 4 communicated with the hollow structure are distributed on the side wall of the H-shaped argon blowing head 3; wherein, H type blows argon head 3 can toast the hole through the package and get into inside the package, and, fixed bolster 2 can block locate the outside that the hole was toasted to the package. Like this, before casting, blow the argon head 3 with the H type and stretch into well package inside from the package baking hole, locate fixed bolster 2 card the outside in package baking hole, the intercommunication blows argon pipe 1 and argon gas source, carries out the argon filling replacement to the air in the package. H type blows argon head 3 and stretches into the air of well package inside below to well package from well package baking hole inside and replace, H type blows and has arranged a plurality ofly on 3 lateral walls of argon head and blows argon hole 4 with hollow structure link up, make argon can discharge from a plurality of holes, change into the face contact from the point contact with well package air, increase area of contact, the argon replacement effect before the well package is opened and is watered has been improved, the casting blank internal quality of the first stove of continuous casting has been strengthened, make the steel blank internal quality that the first stove obtained steel blank and the subsequent stove obtained in the continuous casting have not obvious difference.
The size of the invention can be flexibly adjusted according to the size of the tundish and the size of the tundish baking hole, and is not limited to the size marked in figures 1 and 2.
In a preferred embodiment of the present invention, the argon blowing pipe 1 is connected to a middle portion of a lateral portion of an H-type argon blowing head 3. Thus, after the H-shaped argon blowing head 3 extends into the tundish, the argon in the tundish can be replaced more uniformly.
In order to increase the contact area and enhance the displacement effect, in a preferred embodiment of the invention, adjacent argon blowing holes 4 are spaced apart by 40-60 mm.
In order to increase the contact area and enhance the displacement effect, in a preferred embodiment of the invention the argon blowing holes 4 have a diameter of 4-6 mm.
In a preferred embodiment of the invention, the distance between the fixed bracket 2 and the top of the H-shaped argon blowing head 3 is 650-690 mm.
In order to enhance the replacement effect, in a preferred embodiment of the invention, the H-type argon blowing head 3 is 350-450mm long and 280-320mm wide, wherein the length of the cross section of the H-type argon blowing head 3 is 210-230 mm.
In a preferred embodiment of the invention, the H-shaped argon blowing head 3 is formed by welding stainless steel plates with the thickness of 4-6 mm. The use of high-strength materials reduces the replacement frequency of the device and the labor intensity of personnel
In order to enhance the replacement effect, in a preferred embodiment of the present invention, the tube diameter of the argon blowing tube 1 is 9-11 mm.
The invention also provides a tundish argon replacement method, which comprises the step of performing argon replacement on a tundish by blowing argon before casting by using the tundish argon replacement device.
In a preferred embodiment of the present invention, the method comprises: before casting, blow the argon head 3 with the H type and stretch into well package inside from the middle package baking hole, locate fixed bolster 2 card the outside in well package baking hole, the intercommunication blows argon pipe 1 and argon gas source, carries out the argon filling replacement to the air in the well package.
Like this, before casting, blow the argon head 3 with the H type and stretch into well package inside from the package baking hole, locate fixed bolster 2 card the outside in package baking hole, the intercommunication blows argon pipe 1 and argon gas source, carries out the argon filling replacement to the air in the package. H type blows argon head 3 and stretches into the air of well package inside below from the well package baking hole and replace, and H type blows and has arranged a plurality ofly on 3 lateral walls of argon head and blows argon hole 4 that link up with hollow structure for argon can be discharged from a plurality of holes, changes the face contact from the point contact with well package air, and increase area of contact has improved well package and has opened the argon replacement effect before watering, has strengthened the inside quality of casting blank of the first stove of continuous casting.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The tundish argon gas replacement device is characterized by comprising a hollow H-shaped argon blowing head (3), an argon blowing pipe (1) communicated with the hollow structure of the H-shaped argon blowing head (3), and a fixing support (2) arranged on the outer wall of the argon blowing pipe (1), wherein the other end of the argon blowing pipe (1) is communicated with an argon gas source; wherein, a plurality of argon blowing holes (4) which are communicated with the hollow structure are distributed on the side wall of the H-shaped argon blowing head (3);
the H-shaped argon blowing head (3) can enter the middle ladle through the middle ladle baking hole, and the fixing support (2) can be clamped outside the middle ladle baking hole.
2. The tundish argon gas replacement device according to claim 1, wherein the argon blowing pipe (1) is connected to the middle of the transverse part of the H-shaped argon blowing head (3).
3. The tundish argon gas replacement device according to claim 1, wherein adjacent argon blowing holes (4) are spaced 40-60mm apart.
4. The tundish argon gas replacing device according to claim 4, characterized in that the diameter of the argon blowing hole (4) is 4-6 mm.
5. The tundish argon gas replacing device according to any one of claims 1 to 4, characterized in that the distance from the fixing support (2) to the top of the H-shaped argon blowing head (3) is 650-690 mm.
6. The tundish argon gas replacement device according to claim 5, wherein the H-type argon blowing head (3) is 450mm long and 320mm wide, and the cross section of the H-type argon blowing head (3) is 230mm long.
7. The tundish argon gas replacement device according to claim 1, wherein the H-shaped argon blowing head (3) is formed by welding stainless steel plates with the thickness of 4-6 mm.
8. The tundish argon gas replacement device according to claim 1, wherein the tube diameter of the argon blowing tube (1) is 9-11 mm.
9. A tundish argon gas replacement method is characterized by comprising the step of performing argon gas replacement on a tundish by blowing argon gas before casting by using the tundish argon gas replacement device according to any one of claims 1 to 8.
10. The method for replacing argon in a tundish according to claim 9, comprising:
before casting, blow argon head (3) with the H type and stretch into well package inside from middle package baking hole, locate fixed bolster (2) card the outside in well package baking hole, the intercommunication blows argon pipe (1) and argon gas source, carries out the argon filling replacement to the air in the well package.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911005818.1A CN110722148A (en) | 2019-10-22 | 2019-10-22 | Tundish argon gas replacement device and tundish argon gas replacement method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911005818.1A CN110722148A (en) | 2019-10-22 | 2019-10-22 | Tundish argon gas replacement device and tundish argon gas replacement method |
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| CN110722148A true CN110722148A (en) | 2020-01-24 |
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| CN201911005818.1A Pending CN110722148A (en) | 2019-10-22 | 2019-10-22 | Tundish argon gas replacement device and tundish argon gas replacement method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922309A (en) * | 2020-07-17 | 2020-11-13 | 中天钢铁集团有限公司 | Method for protecting pouring of continuous casting tundish |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004001013A (en) * | 2002-05-30 | 2004-01-08 | Toshiba Mach Co Ltd | Method and device for flameproofing molten magnesium alloy and its melting furnace |
| CN204018701U (en) * | 2014-07-21 | 2014-12-17 | 马钢(集团)控股有限公司 | Continuous casting T shape tundish impact area argon-blowing device |
| CN205393522U (en) * | 2016-03-07 | 2016-07-27 | 常熟市龙腾特种钢有限公司 | Middle package blows argon gas device |
| CN107824751A (en) * | 2017-11-13 | 2018-03-23 | 马钢(集团)控股有限公司 | Bag internal oxidition atmosphere method of replacing in opening before pouring |
| CN207592770U (en) * | 2017-12-06 | 2018-07-10 | 江苏永钢集团有限公司 | It is a kind of to be used to prevent molten steel in the argon seal ring of casting process secondary oxidation |
| CN208583985U (en) * | 2018-08-13 | 2019-03-08 | 石钢京诚装备技术有限公司 | Packet argon gas emptier in a kind of continuous casting |
-
2019
- 2019-10-22 CN CN201911005818.1A patent/CN110722148A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004001013A (en) * | 2002-05-30 | 2004-01-08 | Toshiba Mach Co Ltd | Method and device for flameproofing molten magnesium alloy and its melting furnace |
| CN204018701U (en) * | 2014-07-21 | 2014-12-17 | 马钢(集团)控股有限公司 | Continuous casting T shape tundish impact area argon-blowing device |
| CN205393522U (en) * | 2016-03-07 | 2016-07-27 | 常熟市龙腾特种钢有限公司 | Middle package blows argon gas device |
| CN107824751A (en) * | 2017-11-13 | 2018-03-23 | 马钢(集团)控股有限公司 | Bag internal oxidition atmosphere method of replacing in opening before pouring |
| CN207592770U (en) * | 2017-12-06 | 2018-07-10 | 江苏永钢集团有限公司 | It is a kind of to be used to prevent molten steel in the argon seal ring of casting process secondary oxidation |
| CN208583985U (en) * | 2018-08-13 | 2019-03-08 | 石钢京诚装备技术有限公司 | Packet argon gas emptier in a kind of continuous casting |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111922309A (en) * | 2020-07-17 | 2020-11-13 | 中天钢铁集团有限公司 | Method for protecting pouring of continuous casting tundish |
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Application publication date: 20200124 |