CN205763829U - A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring - Google Patents
A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring Download PDFInfo
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- CN205763829U CN205763829U CN201620502862.9U CN201620502862U CN205763829U CN 205763829 U CN205763829 U CN 205763829U CN 201620502862 U CN201620502862 U CN 201620502862U CN 205763829 U CN205763829 U CN 205763829U
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Abstract
nullThis utility model belongs to metallurgical continuous casting technical field，It is specifically related to the device of a kind of argon for protecting pouring for continuous casting tundish submerged nozzle，Including the tundish lower nozzle cooperated and submersed nozzle，It is provided with annular air curtain at the gap of described tundish lower nozzle and submersed nozzle and forms pipe，On it, connection has argon pipeline，The other end of described argon pipeline connects the compressed air source unit for providing argon，Described annular air curtain is formed and air-vent is also distributed on the medial wall of pipe，Its simple in construction，Convenient and practical，Can effectively solve the problem that tundish protects cast weak effect，Argon is utilized to coordinate formation argon atmosphere at gap with submersed nozzle at tundish lower nozzle，Effectively completely cut off the duration，And then stop tundish lower nozzle and coordinate the problem causing potting syrup secondary oxidation at gap because of air-breathing with submersed nozzle.
Description
Technical field
This utility model belongs to metallurgical continuous casting technical field, is specifically related to the device of a kind of argon for protecting pouring for continuous casting tundish submerged nozzle.
Background technology
In continuous casting production process, the commonly used tundish lower nozzle of basket pouring is poured into a mould with submersed nozzle mating protection, and so both seam crossings easy invar stream aspirates air and causes secondary oxidation, causes basket pouring protected effect undesirable.At present, in actual production, this seam crossing does not has any argon protective device, has a strong impact on the inherent quality of continuous casting billet.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art; and the device of a kind of continuous casting tundish submerged nozzle argon for protecting pouring is provided; its simple in construction; convenient and practical; can effectively solve the problem that tundish protects cast weak effect; utilize argon to coordinate formation argon atmosphere at gap with submersed nozzle at tundish lower nozzle, effectively completely cut off the duration, and then stop tundish lower nozzle and coordinate the problem causing potting syrup secondary oxidation at gap because of air-breathing with submersed nozzle.
The technical scheme that this utility model is used: the device of a kind of continuous casting tundish submerged nozzle argon for protecting pouring; including the tundish lower nozzle cooperated and submersed nozzle; it is characterized in that: be provided with annular air curtain at the gap of described tundish lower nozzle and submersed nozzle and form pipe; on it, connection has argon pipeline; the other end of described argon pipeline connects the compressed air source unit for providing argon, and described annular air curtain is formed and air-vent is also distributed on the medial wall of pipe.
Described annular air curtain forms the external diameter bore more than or equal to submersed nozzle of pipe, and its internal diameter is less than the bore of submersed nozzle, and is more than the bore of tundish lower nozzle.
It is radial hole that described annular air curtain forms the air-vent of distribution on the medial wall of pipe, and it is evenly distributed on annular air curtain and is formed on the circumference of pipe medial wall.
The air-vent that described annular air curtain is formed on pipe is circular or oval.
Described annular air curtain forms a diameter of 2 ~ 5mm of the air-vent on pipe, and quantity is 10 ~ 50.
Described annular air curtain forms Guan Weiyi ring-shaped round pipe.
It is provided with effusion meter and/or Pressure gauge on described argon pipeline.
On described argon pipeline, the position near annular air curtain formation pipe is additionally provided with the fixture for being connected between wrapping by argon pipeline.
Described fixture is a metal hanger, and its one end is connected on argon pipeline, and the other end is connected between wrapping, thus is suspended on tundish by argon pipeline.
The beneficial effects of the utility model: this utility model uses annular air curtain to form pipe and forms argon shield air curtain at the gap that tundish lower nozzle and submersed nozzle coordinate; characteristic due to argon self; it will not cause potting syrup to aoxidize; and the argon air curtain formed can effectively stop that air enters crystallizer at the gap that tundish lower nozzle and submersed nozzle coordinate; thus effectively solve the problem that potting syrup secondary oxidation is caused because sucking air in the gap at tundish lower nozzle and submersed nozzle cooperation; its simple in construction, convenient and practical.
Accompanying drawing explanation
Fig. 1 is this utility model structure chart.
Fig. 2 is gas piping schematic diagram in this utility model.
In figure: 1, annular air curtain forms pipe, 2, metal hanger, 3, compressed air source unit, 4, argon pipeline, 5, air-vent, 6, effusion meter, 7, Pressure gauge, 8, tundish, 9, the lower mouth of a river, 10, submersed nozzle, 11, crystallizer.
Detailed description of the invention
nullSuch as Fig. 1、Shown in 2，A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring，Including the tundish lower nozzle 9 cooperated and submersed nozzle 10，It is provided with annular air curtain at the gap of tundish lower nozzle 9 and submersed nozzle 10 and forms pipe 1，Annular air curtain is formed and is evenly distributed with air-vent 5 on the medial wall circumference of pipe 1，Air-vent 5 is radial hole，Annular air curtain is formed and is also associated with argon pipeline 4 on pipe 1，The other end of argon pipeline 4 is connected on compressed air source unit 3，Compressed air source unit can form pipe 1 by argon pipeline 4 for annular air curtain and provide argon，Argon forms the air-vent on pipe 1 medial wall by annular air curtain and sprays，Formed at annular air curtain and inside pipe 1, form argon air curtain，Annular air curtain forms the external diameter bore more than or equal to submersed nozzle of pipe 1，Its internal diameter is less than the bore of submersed nozzle，And more than the bore of tundish lower nozzle，The air curtain that the argon sprayed by air-vent is formed just is blocked at the gap of tundish lower nozzle 9 and submersed nozzle 10 cooperation，Effective stop air enters submersed nozzle hence into crystallizer 11 at this gap，And then avoid the secondary oxidation of cast.
Further, the air-vent that annular air curtain is formed on pipe is circular or oval.
Further, annular air curtain forms a diameter of 2 ~ 5mm of the air-vent on pipe, and quantity is 10 ~ 50.
Further, annular air curtain forms Guan Weiyi ring-shaped round pipe.
Further, argon pipeline is provided with on effusion meter 6 or Pressure gauge 7, or argon pipeline and is simultaneously installed with effusion meter 6 and Pressure gauge 7.
Further, on argon pipeline, the position near annular air curtain formation pipe is additionally provided with the fixture for being connected between wrapping on 8 by argon pipeline, and fixture is a metal hanger 2, and its one end is connected on argon pipeline, the other end is connected between wrapping, thus is suspended on tundish by argon pipeline.
The using method of this utility model device:
First, before molten steel is opened and watered, mobile metal hanger 2 makes annular air curtain form the center of pipe just to tundish lower nozzle, and slowly moves up, and installs and is as the criterion not affecting submersed nozzle；
Secondly, described submersed nozzle is arranged on tundish lower nozzle, and to adjust submersed nozzle be plumbness, and annular air curtain formation pipe is slowly put down, it is placed on the upper edge of submersed nozzle, and be connected with metal hanger, adjust annular air curtain and form pipe for level, and with the gap uniformity of tundish lower nozzle；
Then, to annular air curtain, compressed air source unit being formed supply argon in the cavity of pipe by argon pipeline, argon is jetted to the seam crossing between tundish lower nozzle and submersed nozzle by air-vent, and submersed nozzle is opened before watering and started argon of jetting；
Finally, at the end of basket pouring, close argon, move down annular air curtain and form pipe so that it is depart from the mouth of a river, then carry out follow-up work.
In sum; this utility model solves a difficult problem for tundish unprotect cast; set annular air curtain in the bottom of tundish and form device, argon atmosphere can be formed at tundish lower nozzle with submersed nozzle junction, completely cut off air; stop owing to negative inspiratory pressure causes molten steel secondary oxidation; realize non-oxidation molding casting, reduce the harmful gas content in molten steel, improve Molten Steel Cleanliness; promote continuous casting billet quality, improve product performance index.
Claims (9)
1. the device of a continuous casting tundish submerged nozzle argon for protecting pouring; including the tundish lower nozzle cooperated and submersed nozzle; it is characterized in that: be provided with annular air curtain at the gap of described tundish lower nozzle and submersed nozzle and form pipe; on it, connection has argon pipeline; the other end of described argon pipeline connects the compressed air source unit for providing argon, and described annular air curtain is formed and air-vent is also distributed on the medial wall of pipe.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 1; it is characterized in that: described annular air curtain forms the external diameter bore more than or equal to submersed nozzle of pipe; its internal diameter is less than the bore of submersed nozzle, and is more than the bore of tundish lower nozzle.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 1; it is characterized in that: it is radial hole that described annular air curtain forms the air-vent of distribution on the medial wall of pipe, and it is evenly distributed on annular air curtain and is formed on the circumference of pipe medial wall.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 3, it is characterised in that: the air-vent that described annular air curtain is formed on pipe is circular or oval.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 4, it is characterised in that: described annular air curtain forms a diameter of 2 ~ 5mm of the air-vent on pipe, and quantity is 10 ~ 50.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 1, it is characterised in that: described annular air curtain forms Guan Weiyi ring-shaped round pipe.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 1, it is characterised in that: it is provided with effusion meter and/or Pressure gauge on described argon pipeline.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 1, it is characterised in that: on described argon pipeline, the position near annular air curtain formation pipe is additionally provided with the fixture for being connected between wrapping by argon pipeline.
The device of continuous casting tundish submerged nozzle argon for protecting pouring the most according to claim 8; it is characterized in that: described fixture is a metal hanger; its one end is connected on argon pipeline, and the other end is connected between wrapping, thus is suspended on tundish by argon pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620502862.9U CN205763829U (en) | 2016-05-30 | 2016-05-30 | A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620502862.9U CN205763829U (en) | 2016-05-30 | 2016-05-30 | A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring |
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| CN205763829U true CN205763829U (en) | 2016-12-07 |
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| CN201620502862.9U Active CN205763829U (en) | 2016-05-30 | 2016-05-30 | A kind of device of continuous casting tundish submerged nozzle argon for protecting pouring |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825462A (en) * | 2017-01-13 | 2017-06-13 | 北京科技大学 | One kind cast steel ingot protection device and application method |
| CN106881457A (en) * | 2017-03-28 | 2017-06-23 | 马鞍山钢铁股份有限公司 | Molten steel pours device and part is sealed with argon and the method that part carries out argon envelope is sealed using argon |
| CN106944609A (en) * | 2017-03-17 | 2017-07-14 | 华北理工大学 | A kind of outstanding flowing water mouthful and reduction molten steel are with being mingled with the method for corroding resistance to material |
| CN107737914A (en) * | 2017-12-06 | 2018-02-27 | 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 |
| CN113600773A (en) * | 2021-07-30 | 2021-11-05 | 南京钢铁股份有限公司 | Pouring process of low-oxygen-concentration continuous casting tundish |
-
2016
- 2016-05-30 CN CN201620502862.9U patent/CN205763829U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106825462A (en) * | 2017-01-13 | 2017-06-13 | 北京科技大学 | One kind cast steel ingot protection device and application method |
| CN106825462B (en) * | 2017-01-13 | 2018-11-27 | 北京科技大学 | A kind of casting steel ingot protective device |
| CN106944609A (en) * | 2017-03-17 | 2017-07-14 | 华北理工大学 | A kind of outstanding flowing water mouthful and reduction molten steel are with being mingled with the method for corroding resistance to material |
| CN106881457A (en) * | 2017-03-28 | 2017-06-23 | 马鞍山钢铁股份有限公司 | Molten steel pours device and part is sealed with argon and the method that part carries out argon envelope is sealed using argon |
| CN107737914A (en) * | 2017-12-06 | 2018-02-27 | 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 |
| CN113600773A (en) * | 2021-07-30 | 2021-11-05 | 南京钢铁股份有限公司 | Pouring process of low-oxygen-concentration continuous casting tundish |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180807 Address after: 459000 531 Industrial Park of tiger ridge industrial cluster, Jiyuan, Henan Patentee after: Henan Zhongyuan special steel equipment manufacturing Co., Ltd. Address before: 459000 Xiao Zhai, Jiyuan Town, Jiyuan City, Henan Patentee before: Zhongyuan Special Steel Co., Ltd. |
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| TR01 | Transfer of patent right |