CN209816188U - Online centering device for converter oxygen lance - Google Patents
Online centering device for converter oxygen lance Download PDFInfo
- Publication number
- CN209816188U CN209816188U CN201920112429.8U CN201920112429U CN209816188U CN 209816188 U CN209816188 U CN 209816188U CN 201920112429 U CN201920112429 U CN 201920112429U CN 209816188 U CN209816188 U CN 209816188U
- Authority
- CN
- China
- Prior art keywords
- nitrogen
- oxygen lance
- converter
- flue
- oxygen
- 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
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 64
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 64
- 239000001301 oxygen Substances 0.000 title claims abstract description 64
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 104
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 52
- 238000007789 sealing Methods 0.000 claims abstract description 20
- 239000000779 smoke Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 abstract description 7
- 229910000831 Steel Inorganic materials 0.000 abstract description 6
- 239000010959 steel Substances 0.000 abstract description 6
- 238000009628 steelmaking Methods 0.000 abstract description 5
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 2
- 238000003780 insertion Methods 0.000 description 7
- 230000037431 insertion Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to an online centering device of a converter oxygen lance, which belongs to the technical field of converter steelmaking equipment in the metallurgical industry. The technical scheme is as follows: establish in the top of converter (1) petticoat pipe (2), flue (8) are connected on petticoat pipe (2), be equipped with patchhole (3) with oxygen rifle (10) matched with on flue (8), nitrogen seals seat (4) and fixes on patchhole (3) of flue (8), be equipped with the round hole that is linked together with patchhole (3) in nitrogen seals seat (4), the round hole upper end in nitrogen seals seat (4) seals (6) for nitrogen, hollow round platform body (7) are fixed on nitrogen seals seat (4) through ring flange (5), oxygen rifle (10) are inserted perpendicularly in converter (1), the upper end of oxygen rifle (10) is equipped with nitrogen sealing cap (9). The utility model has the advantages that: effectively solves the equipment accidents of oxygen lance steel wire rope groove separation, metal hose damage and the like caused by the fact that the oxygen lance is supported on the nitrogen seal because the center line of the oxygen lance and the furnace mouth is not aligned, and ensures the smooth operation of steel-making production.
Description
Technical Field
The utility model relates to an online centering device of a converter oxygen lance, which belongs to the technical field of converter steelmaking equipment in the metallurgical industry.
Background
In modern steel enterprises, oxygen lance transmission equipment of a steel plant adopts a 'double-vehicle double-gun' type. Each oxygen lance is provided with a lifting trolley and a lifting system which are independent. The movable guide rail and the lifting system of the oxygen lance lifting trolley are fixed on the transverse moving trolley, and the transverse moving trolley is driven by the traveling device, so that the blowing gun and the standby gun can be rapidly replaced. The transverse moving trolley moves to enable the respective movable guide rails to be connected with the fixed guide rails respectively, so that the oxygen lance and the lifting trolley move between the upper limit position and the lower limit position.
The oxygen lance works in a high-temperature environment, so a circulating water-cooled sleeve component is adopted. The oxygen lance mainly comprises a tube body and a spray head, wherein each pipeline of the tube body is respectively connected with three metal hoses fixed on a lifting trolley through flanges, so that water inlet and outlet and oxygen supply are realized. The upper and lower bearing surfaces of the oxygen lance body are fixed on the lifting trolley, the upper bearing surface is connected in a plane flange mode, and the lower bearing surface is connected by a U-shaped snap ring. The center line of the oxygen lance centering furnace mouth is realized by adjusting the centering verticality of the oxygen lance by increasing and decreasing the cushion block with the thickness of 1mm on the upper bearing surface. Because the oxygen lance frequently moves during working, and the high-pressure water inlet and outlet metal hose and the high-pressure oxygen metal hose act by side tension, the cushion block is easy to shift and fall off, so that the oxygen lance does not center the center line of the furnace mouth, the oxygen lance is supported on the nitrogen seal, and equipment accidents such as steel wire rope groove falling of the oxygen lance, metal hose damage and the like are caused. In addition, the total length of the oxygen lance is 20.165m, the weight of the oxygen lance is 2.787 t, the oxygen lance is long and heavy, the oxygen lance needs 1-2 hours for secondary centering, centering adjustment is extremely difficult, the site space is narrow, the environment is severe, the labor intensity of workers is increased, steel making production can be influenced, and certain potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an online centering device of converter oxygen rifle can ensure that the converter oxygen rifle centers the fire door central line, avoids the oxygen rifle top on the nitrogen seals, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
an on-line centering device for a converter oxygen lance comprises a converter, a smoke hood, an insertion hole, a nitrogen seal seat, a flange plate, a nitrogen seal, a hollow circular truncated cone body, a flue, a nitrogen seal cap and an oxygen lance, wherein the smoke hood is arranged above the converter, the flue is connected to the smoke hood, the flue is provided with the insertion hole matched with the oxygen lance, the nitrogen seal seat is fixed on the insertion hole of the flue, a round hole communicated with the insertion hole is formed in the nitrogen seal seat, the upper end of the round hole in the nitrogen seal seat is sealed by nitrogen, the hollow circular truncated cone body is a hollow circular truncated cone with a large upper part and a small lower part, the hollow circular truncated cone body is fixed on the nitrogen seal seat through the flange plate, the oxygen lance sequentially penetrates through the hollow circular truncated cone body, the flange plate, the nitrogen seal seat, the flue and the smoke.
The hollow round platform body is welded on the flange plate, and the flange plate is fixed on the nitrogen seal seat through a fixing bolt.
The cone angle of the hollow round table body is 80 degrees.
Adopt the utility model discloses, the in-process of rifle under the oxygen rifle, no matter the skew any direction of oxygen rifle, as long as the oxygen rifle shower nozzle falls hollow round platform internally, relies on the reaction force of hollow round platform internal surface, just can accurate centering fire door central line to realize the online centering of oxygen rifle.
The utility model has the advantages that: the problems that the oxygen lance is supported on the nitrogen seal due to the fact that the oxygen lance is not aligned with the center line of the furnace mouth are effectively solved, equipment accidents such as steel wire rope groove separation of the oxygen lance and metal hose damage are caused, smooth steel-making production is guaranteed, labor intensity of workers is reduced, and potential safety hazards are eliminated. And the maintenance cost of oxygen lance spare parts such as an oxygen lance steel wire rope, a metal hose and the like is saved, and the annual benefit is created by 150 plus 200 ten thousand yuan.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial enlarged view of the present invention;
FIG. 3 is a top view of FIG. 2;
in the figure: 1. a converter; 2. a smoke hood; 3. an insertion hole; 4. a nitrogen sealing seat; 5. a flange plate; 6. sealing by nitrogen; 7. a hollow round table body; 8. a flue; 9. sealing a cap by nitrogen; 10. an oxygen lance; 11. and (5) fixing the bolt.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to attached drawings 1, 2 and 3, the on-line centering device for the converter oxygen lance comprises a converter 1, a smoke hood 2, an insertion hole 3, a nitrogen seal seat 4, a flange 5 and a nitrogen seal 6, the converter comprises a hollow circular truncated cone body 7, a flue 8, a nitrogen sealing cap 9 and an oxygen lance 10, wherein the flue 2 is arranged above the converter 1, the flue 8 is connected onto the flue 2, an inserting hole 3 matched with the oxygen lance 10 is formed in the flue 8, a nitrogen sealing seat 4 is fixed on the inserting hole 3 of the flue 8, a round hole communicated with the inserting hole 3 is formed in the nitrogen sealing seat 4, a nitrogen seal 6 is arranged at the upper end of the round hole in the nitrogen sealing seat 4, the hollow circular truncated cone body 7 is a hollow circular truncated cone with a large upper part and a small lower part, the hollow circular truncated cone body 7 is fixed on the nitrogen sealing seat 4 through a flange 5, the oxygen lance 10 sequentially penetrates through the hollow circular truncated cone body 7, the flange 5, the nitrogen seal 6, the nitrogen sealing seat 4, the flue 8 and the oxygen lance 2 and is vertically inserted into the converter 1, and the nitrogen sealing cap.
The specific embodiment is as follows:
in this embodiment, the hollow circular truncated cone body 7 and the flange 5 are both made of carbon steel castings, the hollow circular truncated cone body 7 is mounted on the flange on the nitrogen seal seat 4, the hollow circular truncated cone body 7 is a hollow circular truncated cone with a large upper part and a small lower part, the inner diameter of the small opening end at the lower part is 500 mm, and the diameter of the nitrogen seal 6 is 500 mm, and the two are equal. The outer diameter of the small opening end of the lower part of the hollow round table body 7 is equal to the diameter of the flange 5 arranged on the nitrogen seal seat 4, and the diameters are all 600 mm. The flange 5 and the nitrogen seal seat 4 are connected through a fixing bolt 11 and are installed at the insertion opening 3 of the flue 8. The inner diameter of the large opening end at the upper part of the hollow circular truncated cone body 7 is 800 mm, the outer diameter of the large opening end at the upper part of the hollow circular truncated cone body 7 is 900 mm, the height of the hollow circular truncated cone body 7 is 400 mm, and the radial included angle alpha between the outer surface of the hollow circular truncated cone body 7 and the flange plate 5 is 50 degrees.
The small opening end of the lower part of the hollow round table body 7 is welded on the flange 5, and the welding seam is required to be smooth and have no bulge during welding. The large opening end at the upper part of the hollow circular table body 7 receives an oxygen lance nozzle, so that the oxygen lance can be centered conveniently.
In the process of discharging the oxygen lance, no matter the oxygen lance deviates from any direction, as long as the oxygen lance nozzle drops into the hollow circular truncated cone body, the center line of the furnace mouth can be accurately centered by the reaction force of the inner surface of the hollow circular truncated cone body, thereby realizing the on-line centering of the oxygen lance.
Claims (3)
1. The utility model provides an online centering device of converter oxygen rifle which characterized in that: the nitrogen sealing device comprises a converter (1), a smoke hood (2), an inserting hole (3), a nitrogen sealing seat (4), a flange plate (5), a nitrogen sealing opening (6), a hollow circular truncated cone body (7), a flue (8), a nitrogen sealing cap (9) and an oxygen lance (10), wherein the smoke hood (2) is arranged above the converter (1), the flue (8) is connected onto the smoke hood (2), the flue (8) is provided with the inserting hole (3) matched with the oxygen lance (10), the nitrogen sealing seat (4) is fixed onto the inserting hole (3) of the flue (8), a round hole communicated with the inserting hole (3) is arranged in the nitrogen sealing seat (4), the upper end of the round hole in the nitrogen sealing seat (4) is the nitrogen sealing opening (6), the hollow circular truncated cone body (7) is a hollow circular truncated cone with a large upper part and a small lower part, the hollow circular truncated cone body (7) is fixed onto the nitrogen sealing seat (4) through the flange plate (5), and the oxygen lance (10), The nitrogen seal (6), the nitrogen seal seat (4), the flue (8) and the smoke hood (2) are vertically inserted into the converter (1), and the upper end of the oxygen lance (10) is provided with a nitrogen seal cap (9) which is matched with the hollow circular truncated cone body (7) and the nitrogen seal (6).
2. The on-line centering device for the oxygen lance of the converter as claimed in claim 1, which is characterized in that: the hollow round table body (7) is welded on the flange plate (5), and the flange plate (5) is fixed on the nitrogen seal seat (4) through a fixing bolt (11).
3. The on-line centering device for the oxygen lance of the converter as claimed in claim 1, which is characterized in that: the conical angle of the hollow round table body (7) is 80 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920112429.8U CN209816188U (en) | 2019-01-23 | 2019-01-23 | Online centering device for converter oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920112429.8U CN209816188U (en) | 2019-01-23 | 2019-01-23 | Online centering device for converter oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209816188U true CN209816188U (en) | 2019-12-20 |
Family
ID=68871781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920112429.8U Expired - Fee Related CN209816188U (en) | 2019-01-23 | 2019-01-23 | Online centering device for converter oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209816188U (en) |
-
2019
- 2019-01-23 CN CN201920112429.8U patent/CN209816188U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20191220 |