CN109570484A - A kind of ventilative submersed nozzle of bottom blowing - Google Patents
A kind of ventilative submersed nozzle of bottom blowing Download PDFInfo
- Publication number
- CN109570484A CN109570484A CN201910071808.1A CN201910071808A CN109570484A CN 109570484 A CN109570484 A CN 109570484A CN 201910071808 A CN201910071808 A CN 201910071808A CN 109570484 A CN109570484 A CN 109570484A
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- CN
- China
- Prior art keywords
- river
- mouth
- side opening
- ventilation part
- air flue
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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
- 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 proposes a kind of bottom blowing permeability type mouths of a river, including mouth of a river ontology and the mouth of a river liner for being compounded in mouth of a river inner body wall, the lower part of mouth of a river ontology is equipped with side opening, the side opening bottom is provided with a cylindric ventilation part, the ventilation part is connected to gas chamber via air flue, gas chamber is communicated via external interface with argon gas pipeline, and the external interface is horizontally disposed, and the air flue is between mouth of a river ontology and mouth of a river liner.When the mouth of a river uses, the argon gas of certain pressure and flow is input to mouth of a river gas chamber via Argon pipeline and is transported to mouth of a river bottom ventilation part through air flue, and argon gas bubbles air curtain is formed in side opening bottom, Argon Bubble can carry the field trashes such as aluminium oxide and float to liquid steel level or more in molten steel, to avoid inclusion content in melting steel in side opening bottom deposit, reduce aluminate and enter slab, reduces slab and be mingled with, help to improve slab quality.
Description
Technical field
The present invention relates to the diligent fire-resistant Material Fields of continuous casting, particularly relate to a kind of ventilative submersed nozzle of bottom blowing.
Background technique
Submersed nozzle is a kind of crucial continuous casting functional refractory material, and the vital function of last part of steel making working procedure is resistance to
Fiery material is the ladle canal between middle packet and crystallizer, possesses conveying molten steel, and supports molten steel optimizes in a crystallizer to divide
The function of cloth.As structure of China's iron and steel industryization upgrades and its develops, continuous casting Metallurgical Industry Development goes out the special steel grade of various different characteristics,
In practical steel pouring process, due to process for making feature, when such as continuous casting containing aluminum killed steel, titaniferous and rare metal steel, in the mouth of a river
Chamber and its bottom can generate a large amount of accumulation, wherein in the majority with tufted aluminium oxide accumulation.The tufted aluminium oxide of deposition is in water
Mouth side opening bottom is largely gathered, and is resulted in blockage, tufted aluminium oxide accumulation can be involved in crystallizer by steel stream when serious, into casting
In base green shell, forms large-scale hardness and be mingled with, seriously threaten slab quality.
Currently, mostly using compound anti-clogging material, the material when continuous casting to solve submersed nozzle dross blockage problem
Compound suppressing is expected on the barrel of mouth of a river inner cavity, to be unfavorable for Alumina build-up or form the side such as low melting point with aluminium oxide in steel
Formula, to realize the purpose for preventing dross blocking.However in actual production, the anti-dross anti-clogging effect of above-mentioned material and pay no attention to
Think, mouth of a river ladle canal middle and upper part is solved well, but no very good solution is gathered to the attachment of mouth of a river side opening bottom and is done
Method, the deposits such as aluminium oxide of side opening bottom tufted accumulation are still the significant threat source of slab quality, are unfavorable for high-quality casting
Steel continuous casting.
Therefore, against the above deficiency, the present invention provides a kind of ventilative submersed nozzles in bottom.
Summary of the invention
The present invention proposes a kind of ventilative submersed nozzle of bottom blowing, solves submersed nozzle continuous casting in the prior art
When, the accumulations such as side opening bottom tufted aluminium oxide deposit the problem of blocking, threatening slab quality.
The technical scheme of the present invention is realized as follows:
A kind of bottom blowing permeability type mouth of a river, including mouth of a river ontology and the mouth of a river liner for being compounded in mouth of a river inner body wall, mouth of a river sheet
The lower part of body is equipped with side opening, which is provided with a cylindric ventilation part, and the ventilation part is connected to gas chamber via air flue,
Gas chamber is communicated via external interface with argon gas pipeline, and the external interface is horizontally disposed, and the air flue is located at mouth of a river ontology and water
Between mouth liner.
Preferably, the ventilation part is made by porous air pervious material, and apparent porosity is in 20-30%.
Preferably, the air flue is by making with ventilation part gas permeable material of the same race, is diameter 5mm cylindrical body.
The invention has the benefit that
The mouth of a river of the invention is in use, the argon gas of certain pressure and flow is input to mouth of a river gas chamber via argon gas pipeline and passes through
Air flue is transported to mouth of a river bottom ventilation part, and forms argon gas bubbles air curtain in side opening bottom, and Argon Bubble can carry the folder such as aluminium oxide
Sundries floats to liquid steel level or more in molten steel, to avoid inclusion content in melting steel in side opening bottom deposit, reduces oxidation
Aluminum inclusion enters slab, meanwhile, external interface is horizontally disposed, it can be ensured that the air curtain of mouth of a river inner body wall is in Ar Pressure masterpiece
It will not guarantee the degree of purity of molten steel under steel flow direction when moving upwards under.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without any creative labor, may be used also for those of ordinary skill in the art
To obtain other drawings based on these drawings.
Fig. 1 is argon-blowing immersion type water nozzle schematic diagram in bottom of the present invention；
Fig. 2 is argon-blowing immersion type water nozzle schematic diagram in bottom of the present invention；
Fig. 3 is bottom argon-blowing immersion type water nozzle of the present invention bottom ventilating structure enlarged diagram.
Fig. 4 is the ventilative air flue of bottom argon-blowing immersion type water nozzle of the present invention and air chamber structure enlarged diagram.
Wherein, 1. ventilation part, 2. air flues, 3. gas chambers, 4. argon gas pipelines, 5. mouth of a river ontologies, 6. mouth of a river liners.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
A kind of bottom blowing permeability type mouth of a river, as shown in Figs 1-4, including mouth of a river ontology 5 and the water for being compounded in 5 inner wall of mouth of a river ontology
Mouth liner 6, the lower part of mouth of a river ontology 5 are equipped with side opening, which is provided with a cylindric ventilation part 1, and the ventilation part 1 passes through
Gas chamber 3 is connected to by air flue 2, gas chamber 3 is communicated via external interface with argon gas pipeline 4, and the external interface is horizontally disposed, described
Air flue 2 is between mouth of a river ontology 5 and mouth of a river liner 6.
Based on the above technical solution, ventilation part 1 is made by porous air pervious material, and apparent porosity is in 20-30%.
Based on the above technical solution, the air flue 2 is by making with ventilation part gas permeable material of the same race, is diameter
5mm cylindrical body.
The mouth of a river is in use, the argon gas of certain pressure and flow is input to gas chamber 3 via argon gas pipeline 4 and conveys through air flue 2
Argon gas bubbles air curtain is formed to mouth of a river bottom ventilation part 1, and in side opening bottom, Argon Bubble can carry the field trashes such as aluminium oxide in steel
Liquid steel level or more is floated in water, to avoid inclusion content in melting steel in side opening bottom deposit, reduces aluminate
Into slab, reduces slab and be mingled with, help to improve slab quality.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of bottom blowing permeability type mouth of a river, which is characterized in that including mouth of a river ontology and be compounded in the mouth of a river of mouth of a river inner body wall
The lower part of lining, mouth of a river ontology is equipped with side opening, which is provided with a cylindric ventilation part, and the ventilation part connects via air flue
It is connected to gas chamber, gas chamber is communicated via external interface with argon gas pipeline, and the external interface is horizontally disposed, and the air flue is located at the mouth of a river
Between ontology and mouth of a river liner.
2. a kind of bottom blowing permeability type mouth of a river as described in claim 1, which is characterized in that the ventilation part is by porous air pervious material
Production, apparent porosity is in 20-30%.
3. a kind of bottom blowing permeability type mouth of a river as described in claim 1, which is characterized in that the air flue is by of the same race with ventilation part
Gas permeable material production is diameter 5mm cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071808.1A CN109570484A (en) | 2019-01-24 | 2019-01-24 | A kind of ventilative submersed nozzle of bottom blowing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910071808.1A CN109570484A (en) | 2019-01-24 | 2019-01-24 | A kind of ventilative submersed nozzle of bottom blowing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109570484A true CN109570484A (en) | 2019-04-05 |
Family
ID=65918084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910071808.1A Pending CN109570484A (en) | 2019-01-24 | 2019-01-24 | A kind of ventilative submersed nozzle of bottom blowing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109570484A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148453A (en) * | 1980-04-18 | 1981-11-17 | Shinagawa Refract Co Ltd | Nozzle for continuous casting |
| US4487251A (en) * | 1982-03-08 | 1984-12-11 | Vesuvius Crucible Company | Continuous casting apparatus and a method of using the same |
| JPS62130754A (en) * | 1985-12-02 | 1987-06-13 | Akechi Ceramics Kk | Gas blowing type immersion nozzle |
| JPS62203666A (en) * | 1986-02-28 | 1987-09-08 | Kurosaki Refract Co Ltd | Nozzle for pouring molten metal and its production |
| JPH0890177A (en) * | 1994-09-22 | 1996-04-09 | Kobe Steel Ltd | Immersion nozzle for continuous casting |
| JP2009220150A (en) * | 2008-03-17 | 2009-10-01 | Kurosaki Harima Corp | Immersion nozzle |
| CN202010771U (en) * | 2011-03-04 | 2011-10-19 | 山东中齐耐火材料有限公司 | Immersion type water port for continuous casting machine |
| CN202490928U (en) * | 2012-03-31 | 2012-10-17 | 安徽工业大学 | Extended nozzle device capable of eliminating inclusions for tundish |
| CN102864283A (en) * | 2012-09-19 | 2013-01-09 | 中冶南方工程技术有限公司 | Argon-blowing long nozzle for clean steel |
| CN106216653A (en) * | 2016-09-26 | 2016-12-14 | 北京利尔高温材料股份有限公司 | A kind of long nozzle for continuous casting and manufacture method thereof |
-
2019
- 2019-01-24 CN CN201910071808.1A patent/CN109570484A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56148453A (en) * | 1980-04-18 | 1981-11-17 | Shinagawa Refract Co Ltd | Nozzle for continuous casting |
| US4487251A (en) * | 1982-03-08 | 1984-12-11 | Vesuvius Crucible Company | Continuous casting apparatus and a method of using the same |
| JPS62130754A (en) * | 1985-12-02 | 1987-06-13 | Akechi Ceramics Kk | Gas blowing type immersion nozzle |
| JPS62203666A (en) * | 1986-02-28 | 1987-09-08 | Kurosaki Refract Co Ltd | Nozzle for pouring molten metal and its production |
| JPH0890177A (en) * | 1994-09-22 | 1996-04-09 | Kobe Steel Ltd | Immersion nozzle for continuous casting |
| JP2009220150A (en) * | 2008-03-17 | 2009-10-01 | Kurosaki Harima Corp | Immersion nozzle |
| CN202010771U (en) * | 2011-03-04 | 2011-10-19 | 山东中齐耐火材料有限公司 | Immersion type water port for continuous casting machine |
| CN202490928U (en) * | 2012-03-31 | 2012-10-17 | 安徽工业大学 | Extended nozzle device capable of eliminating inclusions for tundish |
| CN102864283A (en) * | 2012-09-19 | 2013-01-09 | 中冶南方工程技术有限公司 | Argon-blowing long nozzle for clean steel |
| CN106216653A (en) * | 2016-09-26 | 2016-12-14 | 北京利尔高温材料股份有限公司 | A kind of long nozzle for continuous casting and manufacture method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |