CN108754065A - A kind of selection system and method for oxygen lance nozzle parameter - Google Patents
A kind of selection system and method for oxygen lance nozzle parameter Download PDFInfo
- Publication number
- CN108754065A CN108754065A CN201810865514.1A CN201810865514A CN108754065A CN 108754065 A CN108754065 A CN 108754065A CN 201810865514 A CN201810865514 A CN 201810865514A CN 108754065 A CN108754065 A CN 108754065A
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- CN
- China
- Prior art keywords
- parameter
- nozzle
- heat size
- type
- converter
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/30—Regulating or controlling the blowing
- C21C5/35—Blowing from above and through the bath
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4606—Lances or injectors
- C21C5/462—Means for handling, e.g. adjusting, changing, coupling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The invention discloses a kind of selection system and methods of oxygen lance nozzle parameter, including：Thicknesser probe, the furnace body thickness for measuring converter；And controller, for prestoring parameter preset, the controller obtains the dischargeable capacity of the converter according to the furnace body thickness；The heat size ratio of the converter is obtained according to the dischargeable capacity；Nozzle parameter according to the heat size than determining oxygen rifle with parameter preset.The system provided through the invention enables to the nozzle parameter of oxygen rifle to be consistent with the type of furnace, stabilizes converter indices, to reduce splash, return the abnormal conditions occurrence frequency such as dry, has prevented the security risk therefore brought.
Description
Technical field
The present invention relates to steelmaking technical field, the selection system more specifically to a kind of oxygen lance nozzle parameter and side
Method.
Background technology
With the development of top and bottom combined blown converter, key equipment of the oxygen rifle as steel-making, design parameter necessarily affects smelting
The quality of technical-economic index, the Rational choice of oxygen lance nozzle parameter, fine processing and manufacturing technology are to realize that high efficiency smooth is blown
The necessary ways of refining.
Currently, major steel mill's Oxygen Lance Nozzle for Converter parameter is built the type of furnace by laying bricks or stones according to new stove and is designed, procedure parameter is basic
It remains unchanged.But converter profile is continually changing in entire smelting process, what converter profile variation was directly brought is exactly
Converter heat size than variation.After converter is normally smelted, as slag splashing starts, slag blanket progressive additive is splashed in converter, furnace bottom rising,
Converter dischargeable capacity reduces, and heat size ratio becomes smaller；With the increase in furnace life, furnace body refractory brick is corroded by molten steel, physics washes away
Influence gradually falls off, and dischargeable capacity, heat size ratio incrementally increase.After converter profile variation, if oxygen rifle parameter constant, behaviour is shown
It is exactly that smelting process returns dry serious, slugging is difficult, splash is serious etc., severe exacerbation converter indices, big spray even band on work
To glue the safety accidents such as flue, personnel's scald.
Therefore, how to stablize converter indices, become those skilled in the art's technical problem urgently to be resolved hurrily.
Invention content
In view of this, the technical problem to be solved by the present invention is to how stablize converter indices, for this purpose, the present invention carries
A kind of selection system and method for oxygen lance nozzle parameter is supplied.
To achieve the above object, the present invention provides the following technical solutions：
A kind of selection system of oxygen lance nozzle parameter, including：
Thicknesser probe, the furnace body thickness for measuring converter；And
Controller, for prestoring parameter preset, the controller obtains the converter according to the furnace body thickness
Dischargeable capacity；The heat size ratio of the converter is obtained according to the dischargeable capacity；Oxygen is determined according to the heat size ratio and parameter preset
The nozzle parameter of rifle.
Preferably, in the selection system of above-mentioned oxygen lance nozzle parameter, the nozzle parameter includes throat diameter, exports directly
Diameter, angle and Mach number.
Preferably, in the selection system of above-mentioned oxygen lance nozzle parameter, the parameter preset includes nozzle type and heat size
Than, the nozzle type and the heat size than correspondence be：
| Nozzle type | Heat size ratio | Aditus laryngis mm | Export mm | Angle ° | Mach number |
| Leveling style | 0.85-0.87 | 35.6 | 47.2 | 13 | 2.05 |
| Low splash type | 0.85-0.82 | 35.2 | 47.4 | 13.5 | 2.1 |
| Slugging type | 0.8-0.82 | 36.1 | 46.9 | 13 | 2 |
| Heavy duty detergent | > 0.87 | 34.8 | 47.2 | 14 | 2.1 |
| Dephosphorization type | / | 31.7 | 36.7 | 14 | 1.7 |
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
Preferably, in the selection system of above-mentioned oxygen lance nozzle parameter, the nozzle type is according to furnace life and heat size ratio
Correspondence determines；The correspondence of the furnace life and heat size ratio is：
The invention also discloses a kind of selection method of oxygen lance nozzle parameter, this method applies oxygen described in any one of the above embodiments
The selection system of gun sprayer parameter, the method includes：
Measure the furnace body thickness of converter；
The dischargeable capacity of the converter is obtained according to the furnace body thickness；
The heat size ratio of the converter is obtained according to the dischargeable capacity；
Nozzle parameter according to the heat size than determining oxygen rifle with parameter preset.
Preferably, in the selection method of above-mentioned oxygen lance nozzle parameter, the nozzle parameter includes throat diameter, exports directly
Diameter, angle and Mach number.
Preferably, in the selection method of above-mentioned oxygen lance nozzle parameter, the parameter preset includes nozzle type and heat size
Than, the nozzle type and the heat size than correspondence be：
| Nozzle type | Heat size ratio | Aditus laryngis mm | Export mm | Angle ° | Mach number |
| Leveling style | 0.85-0.87 | 35.6 | 47.2 | 13 | 2.05 |
| Low splash type | 0.85-0.82 | 35.2 | 47.4 | 13.5 | 2.1 |
| Slugging type | 0.8-0.82 | 36.1 | 46.9 | 13 | 2 |
| Heavy duty detergent | > 0.87 | 34.8 | 47.2 | 14 | 2.1 |
| Dephosphorization type | / | 31.7 | 36.7 | 14 | 1.7 |
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
Preferably, in the selection method of above-mentioned oxygen lance nozzle parameter, the nozzle type is according to furnace life and heat size ratio
Correspondence determines；The correspondence of the furnace life and heat size ratio is：
It can be seen from the above technical scheme that the system provided through the invention, enables to the nozzle parameter of oxygen rifle
It is consistent with the type of furnace, stabilizes converter indices, to reduce splash, return the abnormal conditions occurrence frequency such as dry, has prevented therefore
The security risk brought.
Description of the drawings
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 technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
A kind of structural schematic diagram of the selection system for oxygen lance nozzle parameter that Fig. 1 is provided by the embodiment of the present invention；
A kind of flow diagram of the selection method for oxygen lance nozzle parameter that Fig. 2 is provided by the embodiment of the present invention；
Wherein, 100 be the device in order to control of Thicknesser probe, 200.
Specific implementation mode
For this purpose, core of the invention is to provide a kind of selection system of oxygen lance nozzle parameter, referred to stablizing converter items
Mark.
In addition, embodiments illustrated below does not play any restriction effect to the invention described in the claims content.In addition,
The full content of composition represented by following example is not limited to must as the solution of the invention described in the claims
It needs.
Referring to Fig. 1, the selection system of the oxygen lance nozzle parameter disclosed in the embodiment of the present invention, including：
Calibrator, the furnace body thickness for measuring converter；Calibrator is measured using thickness measurement with laser probe, and
Controller, for prestoring parameter preset, the controller obtains the converter according to the furnace body thickness
Dischargeable capacity；The heat size ratio of the converter is obtained according to the dischargeable capacity；Oxygen is determined according to the heat size ratio and parameter preset
The nozzle parameter of rifle.
The system provided through the invention enables to the nozzle parameter of oxygen rifle to be consistent with the type of furnace, stabilizes converter items
Index has prevented the security risk therefore brought to reduce splash, return the abnormal conditions occurrence frequency such as dry.
Nozzle parameter includes throat diameter, outlet diameter, angle and Mach number, and the nozzle type of different types of oxygen rifle has
It is a variety of.The parameter preset includes nozzle type and heat size ratio, the nozzle type and the heat size than correspondence be：
| Nozzle type | Heat size ratio | Aditus laryngis mm | Export mm | Angle ° | Mach number |
| Leveling style | 0.85-0.87 | 35.6 | 47.2 | 13 | 2.05 |
| Low splash type | 0.85-0.82 | 35.2 | 47.4 | 13.5 | 2.1 |
| Slugging type | 0.8-0.82 | 36.1 | 46.9 | 13 | 2 |
| Heavy duty detergent | > 0.87 | 34.8 | 47.2 | 14 | 2.1 |
| Dephosphorization type | / | 31.7 | 36.7 | 14 | 1.7 |
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
The nozzle type is determined according to the correspondence of furnace life and heat size ratio；The correspondence in the furnace life and heat size ratio
Relationship is：
Referring to Fig. 2, the invention also discloses a kind of selection method of oxygen lance nozzle parameter, this method is using any of the above-described
The selection system of oxygen lance nozzle parameter described in, the method includes：
Step S1：Measure the furnace body thickness of converter；
Step S:2：The dischargeable capacity of the converter is obtained according to the furnace body thickness；
Step S3：The heat size ratio of the converter is obtained according to the dischargeable capacity；
Step S4：Nozzle parameter according to the heat size than determining oxygen rifle with parameter preset.The nozzle parameter includes larynx
Mouth diameter, outlet diameter, angle and Mach number.
The parameter preset includes nozzle type and heat size ratio, the nozzle type and the heat size than correspondence
For：
| Nozzle type | Heat size ratio | Aditus laryngis mm | Export mm | Angle ° | Mach number |
| Leveling style | 0.85-0.87 | 35.6 | 47.2 | 13 | 2.05 |
| Low splash type | 0.85-0.82 | 35.2 | 47.4 | 13.5 | 2.1 |
| Slugging type | 0.8-0.82 | 36.1 | 46.9 | 13 | 2 |
| Heavy duty detergent | > 0.87 | 34.8 | 47.2 | 14 | 2.1 |
| Dephosphorization type | / | 31.7 | 36.7 | 14 | 1.7 |
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
Preferably, in the selection method of above-mentioned oxygen lance nozzle parameter, the nozzle type is according to furnace life and heat size ratio
Correspondence determines；The correspondence of the furnace life and heat size ratio is：
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (8)
1. a kind of selection system of oxygen lance nozzle parameter, which is characterized in that including：
Thicknesser probe, the furnace body thickness for measuring converter；And
Controller, for prestoring parameter preset, the controller obtains the effective of the converter according to the furnace body thickness
Volume；The heat size ratio of the converter is obtained according to the dischargeable capacity；According to the heat size than determining oxygen rifle with parameter preset
Nozzle parameter.
2. the selection system of oxygen lance nozzle parameter as described in claim 1, which is characterized in that the nozzle parameter includes aditus laryngis
Diameter, outlet diameter, angle and Mach number.
3. the selection system of oxygen lance nozzle parameter as claimed in claim 2, which is characterized in that the parameter preset includes nozzle
Type and heat size ratio, the nozzle type and the heat size than correspondence be：
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
4. the selection system of oxygen lance nozzle parameter as claimed in claim 3, which is characterized in that the nozzle type is according to furnace life
It is determined with the correspondence of heat size ratio；The correspondence of the furnace life and heat size ratio is：
5. a kind of selection method of oxygen lance nozzle parameter, which is characterized in that application is according to any one of claims 1 to 4
The selection system of oxygen lance nozzle parameter, the method includes：
Measure the furnace body thickness of converter；
The dischargeable capacity of the converter is obtained according to the furnace body thickness；
The heat size ratio of the converter is obtained according to the dischargeable capacity；
Nozzle parameter according to the heat size than determining oxygen rifle with parameter preset.
6. the selection method of oxygen lance nozzle parameter as claimed in claim 5, which is characterized in that the nozzle parameter includes aditus laryngis
Diameter, outlet diameter, angle and Mach number.
7. the selection method of oxygen lance nozzle parameter as claimed in claim 6, which is characterized in that the parameter preset includes nozzle
Type and heat size ratio, the nozzle type and the heat size than correspondence be：
It is described to be than determining the nozzle parameter of oxygen rifle with parameter preset according to the heat size：
Nozzle parameter according to the heat size than determining oxygen rifle with the correspondence of default nozzle type and heat size ratio.
8. the selection method of oxygen lance nozzle parameter as claimed in claim 7, which is characterized in that the nozzle type is according to furnace life
It is determined with the correspondence of heat size ratio；The correspondence of the furnace life and heat size ratio is：
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865514.1A CN108754065B (en) | 2018-08-01 | 2018-08-01 | Oxygen lance nozzle parameter selection system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810865514.1A CN108754065B (en) | 2018-08-01 | 2018-08-01 | Oxygen lance nozzle parameter selection system and method |
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| Publication Number | Publication Date |
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| CN108754065A true CN108754065A (en) | 2018-11-06 |
| CN108754065B CN108754065B (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810865514.1A Active CN108754065B (en) | 2018-08-01 | 2018-08-01 | Oxygen lance nozzle parameter selection system and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074038A (en) * | 2019-12-27 | 2020-04-28 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01129920A (en) * | 1987-11-13 | 1989-05-23 | Nkk Corp | Oxygen lance |
| CN201006882Y (en) * | 2007-02-06 | 2008-01-16 | 宝山钢铁股份有限公司 | Oxygen spray pistol of revolving furnace structure |
| JP2011084789A (en) * | 2009-10-16 | 2011-04-28 | Sumitomo Metal Ind Ltd | Converter blowing method |
| CN106435085A (en) * | 2016-09-23 | 2017-02-22 | 河钢股份有限公司邯郸分公司 | Method for solving problem about unstable working oxygen pressure of oxygen lance for automated steelmaking in converter |
-
2018
- 2018-08-01 CN CN201810865514.1A patent/CN108754065B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01129920A (en) * | 1987-11-13 | 1989-05-23 | Nkk Corp | Oxygen lance |
| CN201006882Y (en) * | 2007-02-06 | 2008-01-16 | 宝山钢铁股份有限公司 | Oxygen spray pistol of revolving furnace structure |
| JP2011084789A (en) * | 2009-10-16 | 2011-04-28 | Sumitomo Metal Ind Ltd | Converter blowing method |
| CN106435085A (en) * | 2016-09-23 | 2017-02-22 | 河钢股份有限公司邯郸分公司 | Method for solving problem about unstable working oxygen pressure of oxygen lance for automated steelmaking in converter |
Non-Patent Citations (5)
| Title |
|---|
| 刘宁: "浅论转炉氧枪喷头的选取", 《科技经济导刊》 * |
| 李炳源: "转炉氧枪的选取与使用 ", 《炼钢》 * |
| 李炳源: "转炉氧枪的选取与使用", 《炼钢》 * |
| 毕永杰等: "高效氧枪喷头优化设计改造与应用 ", 《山东冶金》 * |
| 毕永杰等: "高效氧枪喷头优化设计改造与应用", 《山东冶金》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111074038A (en) * | 2019-12-27 | 2020-04-28 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
| CN111074038B (en) * | 2019-12-27 | 2022-03-08 | 安徽工业大学 | Converter slag splashing protection targeted slag splashing gun position control method |
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| Publication number | Publication date |
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| CN108754065B (en) | 2021-02-09 |
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| CB03 | Change of inventor or designer information |
Inventor after: Xue Zhi Inventor after: Guo Weida Inventor after: Li Qiangdu Inventor after: Ren Keshe Inventor after: Gao Zhibin Inventor before: Xue Zhi Inventor before: Guo Weida Inventor before: Li Qiangdu Inventor before: Ren Keshe Inventor before: Gao Zhibin |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210629 Address after: 250000 Shuangquan Road, Gangcheng District, Jinan City, Shandong Province Patentee after: LAIGANG GROUP YINSHAN SHAPED STEEL Co.,Ltd. Address before: 271104 No.99, Fuqian street, Gangcheng District, Laiwu City, Shandong Province Patentee before: SHANDONG IRON AND STEEL Co.,Ltd. |
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| TR01 | Transfer of patent right |