CN204185509U - Bottom-blowing of converter nitrogen valve valve blow-by proofing unit - Google Patents
Bottom-blowing of converter nitrogen valve valve blow-by proofing unit Download PDFInfo
- Publication number
- CN204185509U CN204185509U CN201420690600.0U CN201420690600U CN204185509U CN 204185509 U CN204185509 U CN 204185509U CN 201420690600 U CN201420690600 U CN 201420690600U CN 204185509 U CN204185509 U CN 204185509U
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- nitrogen
- valve
- trip valve
- converter
- blow
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of bottom-blowing of converter nitrogen valve valve blow-by proofing unit for converter steelmaking, be difficult to detect to solve converter current bottom blowing nitrogen valve valve blow-by the problem causing molten steel nitrogen pick-up.It comprises nitrogen transfer lime in parallel and argon delivery lines, blow to converter with bottom blown gas placed in series again after nitrogen transfer lime is in parallel with argon delivery lines, argon delivery lines has argon gas trip valve, nitrogen transfer lime is in series with the first nitrogen trip valve and the second nitrogen trip valve successively, nitrogen transfer lime between first nitrogen trip valve and the second nitrogen trip valve connects nitrogen discharge pipe, nitrogen discharge pipe is equipped with the 3rd nitrogen trip valve and rate of flow meter.The utility model can detect nitrogen valve valve blow-by situation in time, organized processing, effectively reduces the nitrogen increased amount of converter production process, improves steel quality.
Description
Technical field
The utility model relates to a kind of bottom-blowing of converter nitrogen valve valve blow-by proofing unit for converter steelmaking.
Background technology
In order to reduce argon gas cost consumption, converter current bottom blown gas adopts nitrogen argon to switch master mode, and bessemerize process mid-early stage employing nitrogen as bottom blown gas, the later stage adopts argon gas as bottom blown gas.Nitrogen is objectionable constituent for the emphasis variety steel of steel-making as auto sheet, pipe line steel, needs to reduce nitrogen in steel content.
Current nitrogen ar system shifter is blown to converter with bottom blown gas placed in series after adopting nitrogen transfer lime in parallel with argon delivery lines again, and nitrogen transfer lime and argon delivery lines have trip valve respectively, switches selection delivering gas by trip valve.But in actually operating, if nitrogen trip valve is not closed tight during conveying argon gas, nitrogen will be blown into molten steel by pipeline, affect steel quality, and whether nitrogen trip valve is closed tight and is not easy discovery, is difficult to timely disposal.
Summary of the invention
The purpose of this utility model is to overcome prior art defect, provides a kind of bottom-blowing of converter nitrogen valve valve blow-by proofing unit.
The technical solution of the utility model is achieved in that bottom-blowing of converter nitrogen valve valve blow-by proofing unit, comprise nitrogen transfer lime in parallel and argon delivery lines, blow to converter with bottom blown gas placed in series again after nitrogen transfer lime is in parallel with argon delivery lines, nitrogen transfer lime and argon delivery lines have nitrogen trip valve and argon gas trip valve respectively, selection delivering gas is switched by nitrogen trip valve and argon gas trip valve, it is, nitrogen transfer lime is in series with the first nitrogen trip valve and the second nitrogen trip valve successively, nitrogen transfer lime between first nitrogen trip valve and the second nitrogen trip valve connects nitrogen discharge pipe, nitrogen discharge pipe is equipped with the 3rd nitrogen trip valve and rate of flow meter.
The utility model can detect nitrogen valve valve blow-by situation in time, organized processing, effectively reduces the nitrogen increased amount of converter production process, improves steel quality.
Accompanying drawing explanation
Fig. 1 is former bottom-blowing of converter nitrogen ar system shifter schematic diagram.
Fig. 2 is the utility model structural representation.
In figure, 1-nitrogen transfer lime; 2-argon delivery lines; 3-bottom blown gas pipeline; 4-first nitrogen trip valve; 5-second nitrogen trip valve; 6-the 3rd nitrogen trip valve; 7-nitrogen discharge pipe; 8-rate of flow meter; 9-tensimeter; 10-argon gas trip valve.
Embodiment
Be further described below in conjunction with accompanying drawing:
As shown in Figure 1, current nitrogen ar system shifter adopts nitrogen transfer lime 1 to blow with connecting to converter with bottom blown gas pipeline 3 after argon delivery lines 2 parallel connection again, nitrogen transfer lime 1 with argon delivery lines 2 there is trip valve respectively, switches selection delivering gas by trip valve.But in actually operating, if nitrogen trip valve is not closed tight during conveying argon gas, nitrogen will be blown into molten steel by pipeline, affect steel quality, and whether nitrogen trip valve is closed tight and is not easy discovery, is difficult to timely disposal.
As shown in Figure 2, bottom-blowing of converter nitrogen valve valve blow-by proofing unit, comprise nitrogen transfer lime 1 in parallel and argon delivery lines 2, nitrogen transfer lime 1 is blown with connecting to converter with bottom blown gas pipeline 3 after argon delivery lines 2 parallel connection again, bottom blown gas pipeline 3 is equipped with tensimeter 9 and rate of flow meter 8, argon delivery lines 2 has argon gas trip valve 10, nitrogen transfer lime is in series with the first nitrogen trip valve 4 and the second nitrogen trip valve 5 successively, nitrogen transfer lime 1 between first nitrogen trip valve 4 and the second nitrogen trip valve 5 welds nitrogen discharge pipe 7, nitrogen discharge pipe 7 is equipped with the 3rd nitrogen trip valve 6 and rate of flow meter 8.
In converter Argon process, first nitrogen trip valve 4 and the second nitrogen trip valve 5 are all closed, 3rd nitrogen trip valve 6 is opened, can be checked by the rate of flow meter 8 on nitrogen discharge pipe 7 and judge whether the first nitrogen trip valve 4 is closed tight, as do not closed tight, nitrogen is discharged by the 3rd nitrogen trip valve 6 direction by nitrogen discharge pipe 7, and the rate of flow meter 8 on nitrogen discharge pipe 7 detects flow indication, can organized processing in time.When Argon process terminates to switch nitrogen flushing, the first nitrogen trip valve 4 and the second nitrogen trip valve 5 are all opened, and the 3rd nitrogen trip valve 6 cuts out, and nitrogen passes into bottom blown gas pipeline 3 by the first nitrogen trip valve 4 and the second nitrogen trip valve 5 direction.The utility model does simple transformation on former pipeline can detect nitrogen valve valve blow-by situation, organized processing in time, effectively reduces the nitrogen increased amount of converter production process, improves steel quality.
Claims (1)
1. bottom-blowing of converter nitrogen valve valve blow-by proofing unit, comprise nitrogen transfer lime in parallel and argon delivery lines, blow to converter with bottom blown gas placed in series again after nitrogen transfer lime is in parallel with argon delivery lines, nitrogen transfer lime and argon delivery lines have nitrogen trip valve and argon gas trip valve respectively, selection delivering gas is switched by nitrogen trip valve and argon gas trip valve, it is characterized in that: on nitrogen transfer lime, be in series with the first nitrogen trip valve and the second nitrogen trip valve successively, nitrogen transfer lime between first nitrogen trip valve and the second nitrogen trip valve connects nitrogen discharge pipe, nitrogen discharge pipe is equipped with the 3rd nitrogen trip valve and rate of flow meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690600.0U CN204185509U (en) | 2014-11-18 | 2014-11-18 | Bottom-blowing of converter nitrogen valve valve blow-by proofing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420690600.0U CN204185509U (en) | 2014-11-18 | 2014-11-18 | Bottom-blowing of converter nitrogen valve valve blow-by proofing unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204185509U true CN204185509U (en) | 2015-03-04 |
Family
ID=52617521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420690600.0U Expired - Fee Related CN204185509U (en) | 2014-11-18 | 2014-11-18 | Bottom-blowing of converter nitrogen valve valve blow-by proofing unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204185509U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408739A (en) * | 2019-07-22 | 2019-11-05 | 北京首钢股份有限公司 | A kind of bottom-blowing of converter method and device |
| CN112126745A (en) * | 2020-09-27 | 2020-12-25 | 江油市长祥特殊钢制造有限公司 | Nitrogen increasing method for stainless steel |
-
2014
- 2014-11-18 CN CN201420690600.0U patent/CN204185509U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110408739A (en) * | 2019-07-22 | 2019-11-05 | 北京首钢股份有限公司 | A kind of bottom-blowing of converter method and device |
| CN110408739B (en) * | 2019-07-22 | 2022-01-14 | 北京首钢股份有限公司 | Converter bottom blowing method and device |
| CN112126745A (en) * | 2020-09-27 | 2020-12-25 | 江油市长祥特殊钢制造有限公司 | Nitrogen increasing method for stainless steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170721 Address after: 430083, Gate No. 2, Qingshan District, Hubei, Wuhan Patentee after: Wuhan iron and Steel Company Limited Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: Wuhan Iron & Steel (Group) Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150304 Termination date: 20191118 |