CN201321469Y - Nitrogen sealing stopper end for converter oxygen lance - Google Patents
Nitrogen sealing stopper end for converter oxygen lance Download PDFInfo
- Publication number
- CN201321469Y CN201321469Y CNU2008201573570U CN200820157357U CN201321469Y CN 201321469 Y CN201321469 Y CN 201321469Y CN U2008201573570 U CNU2008201573570 U CN U2008201573570U CN 200820157357 U CN200820157357 U CN 200820157357U CN 201321469 Y CN201321469 Y CN 201321469Y
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- nitrogen purging
- flow guiding
- guiding plates
- hole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 58
- 239000001301 oxygen Substances 0.000 title claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 30
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 title claims abstract description 24
- 241001088417 Ammodytes americanus Species 0.000 title abstract 3
- 238000010926 purge Methods 0.000 claims abstract description 33
- 210000001331 Nose Anatomy 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 10
- 238000000034 method Methods 0.000 abstract description 5
- 238000003723 Smelting Methods 0.000 abstract description 4
- 229910001873 dinitrogen Inorganic materials 0.000 abstract description 3
- 230000001629 suppression Effects 0.000 abstract description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 3
- 239000004071 soot Substances 0.000 abstract 3
- 210000003284 Horns Anatomy 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000003500 flue dust Substances 0.000 description 7
- 239000002893 slag Substances 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000003245 working Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a nitrogen sealing stopper end for a converter oxygen lance. The stopper end comprises a main body, flow guiding plates and upper and lower groups of nitrogen purging holes, the upper and the lower flow guiding plates adjacent to the upper group of nitrogen purging holes and the upper and the lower flow guiding plates adjacent to the lower group of nitrogen purging holes are all of a horn structure with a declivous inner hole end, and the rest flow guiding plates are of a circular ring structure. Under the action of respective flow guiding plates, nitrogen gas from the two groups of nitrogen purging holes can form an airflow crossing point in the space between the oxygen lance and the inner wall of the main body, and the nitrogen airflow creates an eddy-flow effect, which has better suppressing effect on soot produced in smelting process, so that the nitrogen sealing effect is improved, and a large amount of soot is restrained, not only the circumstance is improved, but only the potential safety hazards are eliminated. The whole inner holes of the flow guiding plates are of circular truncated cone shape, so that the press-down damping action of the nitrogen gas to the soot is generated and the sealing performance is effectively improved.
Description
Technical field
The utility model relates to the packing technique of converter oxygen gun, more particularly, relates to a kind of nitrogen sealing plug of converter oxygen gun, and the sealing chock plug can improve its nitrogen-sealed effect.
Background technology
See also shown in Figure 1ly, the nitrogen sealing plug 10 of converter oxygen gun comprises body 11, flow deflector 12 and nitrogen purging hole 13, and body 11 internal vertical have through hole; Several layers of identical circular ring type flow deflector 12 be coaxial to be arranged in the through hole of body 11, and is connected to a fixed with body 11 inwalls; The one group of nitrogen purging hole 13 that is in same level evenly is opened in wherein on body 11 inwalls between two flow deflectors 12, thereby can spray and oxygen rifle 1 vertical nitrogen by being connected with transport pipe, is used for sealing.This chock plug 10 is located on the oxygen rifle 1 by the inner hole sleeve of flow deflector 12, and fixing with the welding of oxygen rifle 1 outer wall by three iron angle 14 of body 11 bottoms, thereby can move up and down with oxygen rifle 1.In converter steelmaking process, because coal gas is up to go here and there out along the direction parallel with oxygen rifle 1, and flow deflector 12 endoporus of whole chock plug 10 are round straight barrel type, and all the rifle body is vertical purges with oxygen rifle 1 for nitrogen, therefore stream of nitrogen gas and coal gas are 90 ° of angles and carry out shutoff, its sealing effectiveness is relatively poor, can not seal the volume of smoke of going here and there out when smelting fully at all, the volume of smoke chock plug 10 of emerging is always arranged, influenced operating environment, and the content of CO is greater than 40% in the flue dust, and a large amount of leakages are very easily blasted, and therefore has serious potential safety hazard.In addition, when the slag splashing operation is carried out in converter, spatter slag iron angle 14 places that can bond in a large number, and, finally cause scrapping of oxygen rifle 1 shower nozzle, greatly reduce its work-ing life toward the development of oxygen rifle 1 shower nozzle place.
The utility model content
At the above-mentioned shortcoming that exists in the prior art, the purpose of this utility model provides a kind of nitrogen sealing plug of converter oxygen gun, and this chock plug can help improving sealing property, avoids emerging of converter dust.
For achieving the above object, the utility model adopts following technical scheme:
The nitrogen sealing plug of this converter oxygen gun comprise inside have the body of through hole, vertically with being located in several layers of flow deflector in the through hole and being opened in nitrogen purging hole on the inner body wall, described nitrogen purging hole comprises upper and lower two groups, up and down two flow deflectors adjacent with last group of nitrogen purging hole and with adjacent two flow deflectors up and down in group nitrogen purging hole down, the downward-sloping horn-type structure of nose end in all being; All the other flow deflectors all are the circular ring type structure.
Downward-sloping 25～35 ° of the interior nose end of two flow deflectors up and down that described and last group of nitrogen purging hole is adjacent.
Downward-sloping 15～20 ° of the interior nose end of two flow deflectors up and down that described and following group nitrogen purging hole is adjacent.
The endoporus integral body of described whole flow deflectors is a circular platform type structure, and the diameter of bore of top flow deflector is less than the diameter of bore of bottom flow deflector.
Described body upper end is connected with the chain sling that is used for this chock plug of lifting.
In technique scheme, the nitrogen sealing plug of converter oxygen gun of the present utility model comprises body, flow deflector and nitrogen purging hole, the nitrogen purging hole comprises upper and lower two groups, up and down two flow deflectors adjacent with last group of nitrogen purging hole and with adjacent two flow deflectors up and down in group nitrogen purging hole down, the downward-sloping horn-type structure of nose end in all being; All the other flow deflectors all are the circular ring type structure.The nitrogen that two groups of nitrogen purging holes blow out can be under flow deflector effect separately, form the air-flow joining in the space between oxygen rifle and inner body wall, and make stream of nitrogen gas form turbulent effect, the flue dust that produces in the smelting process there is better suppression, improved nitrogen envelope effect, thereby restrain emerging in a large number of flue dust, not only improved environment, also eliminated potential safety hazard.And flow deflector endoporus integral body is circular platform type, and nitrogen is produced toward the damping action that presses down flue dust, more helps improving sealing property.
Description of drawings
Fig. 1 is the structural representation of nitrogen sealing plug of the converter oxygen gun of prior art;
Fig. 2 is the structural representation of the nitrogen sealing plug of converter oxygen gun of the present utility model;
Fig. 3 is the A portion enlarged diagram among Fig. 2.
Embodiment
Further specify the technical solution of the utility model below in conjunction with drawings and Examples.
See also Fig. 2～shown in Figure 3, the nitrogen sealing plug 20 of converter oxygen gun of the present utility model is basic identical with the chock plug 10 of prior art, equally also comprise inside have the body 21 of through hole, vertically with being located in several layers of flow deflector in the through hole and being opened in nitrogen purging hole on body 21 inwalls.Different is, this nitrogen purging hole comprises upper and lower two groups of 23a, 23b, and every group all has several to be in same level and equally distributed nitrogen purging hole.The upper and lower two flow deflector 22as adjacent with last group of nitrogen purging hole 23a and with adjacent upper and lower two flow deflector 22b of group nitrogen purging hole 23b down, the downward-sloping horn-type structure of nose end in all being; All the other flow deflector 22c all are the circular ring type structure.And the interior nose end of the upper and lower two flow deflector 22as adjacent with last group of nitrogen purging hole 23a is preferable for downward-sloping 25～35 °; And the interior nose end of the up and down two flow deflector 22bs adjacent with following group nitrogen purging hole 23b is preferable for downward-sloping 15～20 °.Like this, can make nitrogen that upper and lower two groups of nitrogen purging hole 23a, 23b blow out under flow deflector 22a, 22b effect separately, form the air-flow joining in the space between oxygen rifle 1 and body 21 inwalls, and under the acting in conjunction of several layers of flow deflector 22a, 22b, 22c, make stream of nitrogen gas form turbulent effect, thereby the flue dust that produces in the smelting process there is better suppression, improved nitrogen envelope effect, can effectively restrain emerging in a large number of converter dust, not only improve operating environment, also eliminated potential safety hazard.And the endoporus integral body of whole flow deflectors 22 of this chock plug 20 is a circular platform type structure, and the diameter of bore of top flow deflector 22c is less than the diameter of bore of bottom flow deflector 22c.Such structure can play the function of similar " cover ", and whole purging nitrogen is produced toward the damping action that presses down flue dust, more helps improving sealing property, can avoid emerging of flue dust fully.In addition, compare with existing chock plug 20, this chock plug 20 has also been cancelled three iron angle 14 that weld mutually with oxygen rifle 1 of body 21 bottoms, is used for the chain sling 24 of this chock plug 20 of lifting but increase by one respectively in both sides, body 21 upper end, thereby this chock plug 20 is hung setting.When the splashing slag in converter operation, because the removal of iron angle 14 makes this place become smooth, and under the effect that nitrogen purging presses down, the dry slag development point at this place has obtained effective control, thereby has solved the dry slag problem, improved the work-ing life of oxygen rifle 1 shower nozzle, provided cost savings.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the utility model, and be not to be used as qualification of the present utility model, as long as in connotation scope of the present utility model, all will drop in claims scope of the present utility model variation, the modification of the above embodiment.
Claims (5)
1. the nitrogen sealing plug of a converter oxygen gun, this chock plug comprise inside have the body of through hole, vertically with being located in several layers of flow deflector in the through hole and being opened in nitrogen purging hole on the inner body wall, it is characterized in that:
Described nitrogen purging hole comprises upper and lower two groups, up and down two flow deflectors adjacent with last group of nitrogen purging hole and with adjacent two flow deflectors up and down in group nitrogen purging hole down, the downward-sloping horn-type structure of nose end in all being; All the other flow deflectors all are the circular ring type structure.
2. the nitrogen sealing plug of converter oxygen gun as claimed in claim 1 is characterized in that:
Downward-sloping 25～35 ° of the interior nose end of two flow deflectors up and down that described and last group of nitrogen purging hole is adjacent.
3. the nitrogen sealing plug of converter oxygen gun as claimed in claim 1 is characterized in that:
Downward-sloping 15～20 ° of the interior nose end of two flow deflectors up and down that described and following group nitrogen purging hole is adjacent.
4. the nitrogen sealing plug of converter oxygen gun as claimed in claim 1 is characterized in that:
The endoporus integral body of described whole flow deflectors is a circular platform type structure, and the diameter of bore of top flow deflector is less than the diameter of bore of bottom flow deflector.
5. the nitrogen sealing plug of converter oxygen gun as claimed in claim 1 is characterized in that:
Described body upper end is connected with the chain sling that is used for this chock plug of lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573570U CN201321469Y (en) | 2008-12-18 | 2008-12-18 | Nitrogen sealing stopper end for converter oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201573570U CN201321469Y (en) | 2008-12-18 | 2008-12-18 | Nitrogen sealing stopper end for converter oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321469Y true CN201321469Y (en) | 2009-10-07 |
Family
ID=41158855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201573570U Expired - Fee Related CN201321469Y (en) | 2008-12-18 | 2008-12-18 | Nitrogen sealing stopper end for converter oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201321469Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
-
2008
- 2008-12-18 CN CNU2008201573570U patent/CN201321469Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102181600A (en) * | 2011-05-24 | 2011-09-14 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN102181600B (en) * | 2011-05-24 | 2012-07-25 | 中冶京诚工程技术有限公司 | Follow-up oxygen lance nitrogen seal device |
| CN106399623A (en) * | 2016-05-24 | 2017-02-15 | 江苏永钢集团有限公司 | Oxygen lance nitrogen sealing plug |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20161218 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |