CN2518869Y - Beam jet oxygen gun for steelmaking - Google Patents
Beam jet oxygen gun for steelmaking Download PDFInfo
- Publication number
- CN2518869Y CN2518869Y CN 02202907 CN02202907U CN2518869Y CN 2518869 Y CN2518869 Y CN 2518869Y CN 02202907 CN02202907 CN 02202907 CN 02202907 U CN02202907 U CN 02202907U CN 2518869 Y CN2518869 Y CN 2518869Y
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- Prior art keywords
- oxygen
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- utility
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- pipe
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- Expired - Lifetime
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Abstract
The utility model relates to a beam jet oxygen gun for steelmaking and belongs to the steel-making field, in particular applicable to the steel-making of the electric cookers. An oxygen gun comprises a main oxygen shooting stream channel 1, a water inlet mouth 2, a water outlet mouth 3, a water inlet pipe 4, a water outlet pipe 5 and an oxygen gushing hole 6. The utility model is characterized in that: The outer layer of the main oxygen shooting stream channel 1 is provided with a main oxygen protecting system which consists of a fuel gushing and blowing pipe 7, an assistant oxygen inlet 8 and a fuel entering mouth 9. The utility model has the advantages that: the gases after the fuel gas(oil) and the assistant oxygen are burned can be used as the protecting gas, the main oxygen can be positioned under the low vacuum condition, the concentrations of the gas in the spaces of the main oxygen and the assistant oxygen are greatly reduced which supplies the good conditions to the gushing and blowing of the main pipe oxygen; thereby, the original wallop and the speed in the main pipe oxygen can be still kept in the distance of 800 to 2000 millimeters away with the exit of the gushing gun; the utility model can be quickly mixed; the penetrating ability of the melting pool can be made strong; the utility model has quick decarbonization and elevates the utilizing efficiency of the oxygen.
Description
Technical field:
The utility model belongs to field of steel-making, is specially adapted to Electric furnace steel making.
Background technology:
Common supersonic jet is normally adopted in Electric furnace steel making furnace wall oxygen blast now, because the velocity attenuation of supersonic jet is fast, short and the dispersion relatively of jet winding-up distance, when jet arrives the molten bath, a little less than the lower and surging force of speed, can not penetrate weld pool surface and carry out effective decarburizing reaction, the availability of oxygen is low.
Summary of the invention:
The utility model relates to a kind of steel-making cluster fluidic oxygen gun; comprise main oxygen fluidic channel 1, water inlet tap 2, faucet 3, water inlet pipe 4, rising pipe 5, oxygen spray orifice 6; it is characterized in that main oxygen fluidic channel 1 skin is provided with main oxygen securing system, main oxygen securing system is entered mouth 9 and is formed by fuel winding-up pipe 7, secondary oxygen inlet 8, fuel.
The utility model is compared with existing supersonic velocity oxygen rifle; its advantage is to use gas after the burning of combustion gas (oil) and secondary oxygen as shielding gas; can make main oxygen be in the rough vacuum condition; main oxygen and subsidiary oxygen space gas concentration reduce greatly; for the winding-up of being responsible for oxygen provides good condition, therefore can make in the distance of spray gun outlet 800-2000mm still to keep being responsible for original surging force of oxygen and speed.Because it is all bigger to be responsible for the intensity and the speed of oxygen, can short mix, molten bath penetrativity grow, quick decarburization has improved the utilising efficiency of oxygen.
Description of drawings:
Fig. 1 comprises that primary oxygen jets passage 1, water inlet tap 2, faucet 3, water inlet pipe 4, rising pipe 5, oxygen spray orifice 6, fuel winding-up pipe 7, secondary oxygen inlet 8, fuel enter mouth 9
Embodiment:
The utility model is made up of main oxygen injection system, secondary oxygen injection system, fuel winding-up, water-cooling system four parts.Main oxygen injection system is positioned at the central position of cluster fluidic oxygen gun; Main oxygen securing system is positioned at the skin of main oxygen injection system, is provided with the winding-up of combustion gas (oil) and secondary oxygen; Water-cooling system is positioned at the spray gun outermost layer, is provided with into water and water outlet at oxygen rifle one end.
A kind of steel-making cluster fluidic oxygen gun, the exit diameter 25.98mm of oxygen rifle, throat diameter is 20mm, the length of oxygen rifle is 1000mm, and the oxygen rifle inserts the central authorities of electric arc furnace, and the external diameter of main oxygen tube is 45mm, the external diameter of auxiliary oxygen tube is 70mm, the external diameter of gas pipe is 57mm, and the external diameter of water inlet pipe is 89mm, and the external diameter of rising pipe is 108mm.
Claims (1)
1. the utility model relates to a kind of steel-making cluster fluidic oxygen gun; comprise main oxygen fluidic channel (1), water inlet tap (2), faucet (3), water inlet pipe (4), rising pipe (5), oxygen spray orifice (6); it is characterized in that main oxygen fluidic channel (1) skin is provided with main oxygen securing system, main oxygen securing system is entered mouth (9) and is formed by fuel winding-up pipe (7), secondary oxygen inlet (8), fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202907 CN2518869Y (en) | 2002-02-01 | 2002-02-01 | Beam jet oxygen gun for steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02202907 CN2518869Y (en) | 2002-02-01 | 2002-02-01 | Beam jet oxygen gun for steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518869Y true CN2518869Y (en) | 2002-10-30 |
Family
ID=33685292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02202907 Expired - Lifetime CN2518869Y (en) | 2002-02-01 | 2002-02-01 | Beam jet oxygen gun for steelmaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518869Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063037A (en) * | 2012-12-26 | 2013-04-24 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Accelerated flash furnace ignition device of ore concentrate |
| CN109609722A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter oxygen lance with burning and two kinds of functions of oxygen blast |
| CN109777912A (en) * | 2019-02-28 | 2019-05-21 | 南京钢铁股份有限公司 | A kind of cluster fluidic oxygen gun and EBT electric arc furnaces |
| CN114410883A (en) * | 2021-12-30 | 2022-04-29 | 钢铁研究总院 | Oxygen lance for cooperatively injecting oxygen, powder and inert gas and injection method |
-
2002
- 2002-02-01 CN CN 02202907 patent/CN2518869Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103063037A (en) * | 2012-12-26 | 2013-04-24 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Accelerated flash furnace ignition device of ore concentrate |
| CN109609722A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter oxygen lance with burning and two kinds of functions of oxygen blast |
| CN109777912A (en) * | 2019-02-28 | 2019-05-21 | 南京钢铁股份有限公司 | A kind of cluster fluidic oxygen gun and EBT electric arc furnaces |
| CN114410883A (en) * | 2021-12-30 | 2022-04-29 | 钢铁研究总院 | Oxygen lance for cooperatively injecting oxygen, powder and inert gas and injection method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120201 Granted publication date: 20021030 |