CN211897021U - Drainage gun for enhancing molten steel flow - Google Patents
Drainage gun for enhancing molten steel flow Download PDFInfo
- Publication number
- CN211897021U CN211897021U CN202020211456.3U CN202020211456U CN211897021U CN 211897021 U CN211897021 U CN 211897021U CN 202020211456 U CN202020211456 U CN 202020211456U CN 211897021 U CN211897021 U CN 211897021U
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- China
- Prior art keywords
- jet
- inner tube
- molten steel
- propelled
- oxygen
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- Expired - Fee Related
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a drainage rifle that reinforcing molten steel flows, including jet-propelled pipe, the jet-propelled pipe outside is equipped with the inner tube, and the inner tube outside is equipped with the outer tube, forms the intake chamber between jet-propelled pipe and the inner tube, and the inner tube inboard is equipped with glossy arc lug from top to bottom along week, is equipped with the end of intaking on the intake chamber, forms out the basin between inner tube and the outer tube, is equipped with out the water outlet on going out the basin, and jet-propelled pipe one end is connected with the shower nozzle, sets up a plurality of air jet in the shower nozzle, and the air jet inboard scribbles the antioxidation layer, and the air jet end. The utility model discloses can carry out cooling treatment protection to the oxygen lance shower nozzle for oxygen distributes evenly in the molten steel, has improved the velocity of flow of oxygen, has reinforceed the molten steel stirring, high to the penetration depth of molten bath, has guaranteed the quality of steel, has shortened converter smelting time and production cycle.
Description
Technical Field
The utility model relates to a drainage rifle, concretely relates to drainage rifle that reinforcing molten steel flows.
Background
The drainage gun is also called oxygen gun, is used for equipment for blowing oxygen into molten steel in the converter steelmaking process, is designed for improving oxygen flow rate and changing oxygen flow direction, and mainly has the functions of heating and dephosphorizing by blowing oxygen into molten steel.
After oxygen in the oxygen lance is introduced into molten iron in the converter, the temperature in the converter is very high, and if the oxygen lance nozzle is not cooled, the oxygen lance nozzle in the converter can be damaged quickly, so that the service life is very short.
Under the condition of certain pressure of an oxygen main pipe, the diameter of a throat and an outlet of an oxygen lance nozzle determines the flow velocity and the flow direction of oxygen, the flow velocity and the flow direction of the oxygen play a decisive role in stirring molten steel and slagging of a converter in the smelting process of the converter, and the existing oxygen lance has the defects of weak stirring on the molten steel, low penetration depth on a molten pool and uneven distribution of the oxygen in the molten steel due to larger diameter of the throat and the diameter of the outlet and single outlet, so that the quality of steel is seriously influenced; and the smelting time of the converter is prolonged due to small oxygen flow, so that the production period is prolonged.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model provides a drainage rifle that reinforcing molten steel flows can solve the problem among the above-mentioned background art.
The utility model discloses a realize through following technical scheme: the utility model provides a drainage rifle that reinforcing molten steel flows, includes jet-propelled pipe, the jet-propelled pipe outside is equipped with the inner tube, the inner tube outside is equipped with the outer tube, form the intake chamber between jet-propelled pipe and the inner tube, the inner tube inboard is equipped with glossy arc lug from top to bottom along week, be equipped with the end of intaking on the intake chamber, form out the basin between inner tube and the outer tube, it is equipped with out the water end on the basin to go out, jet-propelled pipe one end is connected with the shower nozzle, set up a plurality of air jet in the shower nozzle, the air jet inboard scribbles the antioxidation layer, the air jet end of air jet just is equipped with a plurality.
The arc-shaped convex block and the inner pipe are integrally formed.
The plurality of air nozzles are arranged in the vertical direction and the inclined direction.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model is provided with the water inlet groove and the water outlet groove to form a complete water flow loop to carry out cooling treatment protection on the oxygen lance nozzle, and the smooth arc-shaped convex blocks are arranged along the circumference of the inner side of the inner pipe from top to bottom, so that the water flow speed can be improved and the heat transfer efficiency can be enhanced; set up a plurality of vertical direction and incline direction in the shower nozzle of jet-propelled pipe one end and set up the air jet, the air jet is equipped with a plurality of ventholes, has guaranteed the even entering molten steel of the many flow directions of oxygen for oxygen distributes evenly in the molten steel, and the jet-propelled end of air jet is the toper structure, under the certain condition of oxygen flow, has improved the velocity of flow of oxygen, has reinforceed to the molten steel stirring, high to the depth of penetration in molten bath, has guaranteed the quality of steel, has shortened converter smelting time and production cycle.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a cross-sectional view of the air vent of the present invention.
In the drawings: 1. a gas ejector tube; 2. an inner tube; 3. an outer tube; 4. a water inlet groove; 5. an arc-shaped bump; 6. a water inlet end; 7. a water outlet groove; 8. a water outlet end; 9. a spray head; 10. an air jet; 11. an anti-oxidation layer; 12. and an air outlet.
Detailed Description
As shown in figures 1 to 2 of the attached drawings of the specification, the drainage gun for enhancing molten steel flow comprises an air injection pipe 1, an inner pipe 2 is arranged outside the air injection pipe 1, an outer pipe 3 is arranged outside the inner pipe 2, a water inlet groove 4 is formed between the air injection pipe 1 and the inner pipe 2, a smooth arc-shaped bump 5 is arranged on the inner side of the inner pipe 2 from top to bottom along the circumference, a water inlet end 6 is arranged on the water inlet groove 4, a water outlet groove 7 is formed between the inner pipe 2 and the outer pipe 3, a water outlet end 8 is arranged on the water outlet groove 7,
the water inlet groove 4 and the water outlet groove 7 are communicated with each other to form a water inlet and outlet loop so as to cool the end part of the oxygen lance nozzle, in the using process, the water inlet groove 4 is connected with a cooling water supply device through a water inlet end 6, and the water outlet groove 7 is connected with a drainage device through a water outlet end 8, so that cooling water is always introduced into the whole loop to cool and protect the oxygen lance nozzle, the arc-shaped convex block 5 and the inner pipe 2 are integrally formed, and the smooth arc-shaped convex block can improve the water flow speed under the condition of certain water flow so as to enhance the heat transfer efficiency;
one end of the gas injection pipe 1 is connected with a spray head 9, a plurality of gas injection ports 10 are arranged in the spray head 9, the inner sides of the gas injection ports 10 are coated with an oxidation resistant layer 11 which can play an oxidation resistant role to prolong the working time of the gas injection ports 10, the gas injection ends of the gas injection ports 10 are of a conical structure, the flow rate of oxygen is improved under the condition of certain oxygen flow, the stirring of molten steel is strengthened, the penetration depth of the molten pool is high, and the quality of steel is ensured;
the plurality of air nozzles 10 are arranged in the vertical direction and the inclined direction, and each air nozzle 10 is provided with a plurality of air outlet holes 12, so that oxygen can uniformly enter molten steel in multiple flow directions, and the oxygen can be uniformly distributed in the molten steel.
In summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and all equivalent changes and modifications of the shapes, structures, features and spirit described in the claims of the present invention should be included in the scope of the present invention.
Claims (3)
1. The utility model provides a drainage rifle that reinforcing molten steel flows which characterized in that: including jet-propelled pipe (1), jet-propelled pipe (1) outside is equipped with inner tube (2), inner tube (2) outside is equipped with outer tube (3), form intake chamber (4) between jet-propelled pipe (1) and inner tube (2), inner tube (2) inboard is equipped with glossy arc lug (5) from top to bottom along week, be equipped with into water end (6) on intake chamber (4), form out basin (7) between inner tube (2) and outer tube (3), be equipped with on out basin (7) and go out water end (8), jet-propelled pipe (1) one end is connected with shower nozzle (9), set up a plurality of jet-propelled mouth (10) in shower nozzle (9), jet-propelled mouth (10) inboard scribbles oxidation resisting layer (11), the jet-propelled end of jet-propelled mouth (10) just is equipped with a plurality of ventholes (12) for the toper structure.
2. The lance defined in claim 1 wherein: the arc-shaped convex block (5) and the inner pipe (2) are integrally formed.
3. The lance defined in claim 1 wherein: the plurality of air outlets (10) are arranged in the vertical direction and the inclined direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211456.3U CN211897021U (en) | 2020-02-25 | 2020-02-25 | Drainage gun for enhancing molten steel flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020211456.3U CN211897021U (en) | 2020-02-25 | 2020-02-25 | Drainage gun for enhancing molten steel flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211897021U true CN211897021U (en) | 2020-11-10 |
Family
ID=73292057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020211456.3U Expired - Fee Related CN211897021U (en) | 2020-02-25 | 2020-02-25 | Drainage gun for enhancing molten steel flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211897021U (en) |
-
2020
- 2020-02-25 CN CN202020211456.3U patent/CN211897021U/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 |
Granted publication date: 20201110 Termination date: 20210225 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |