CN208517451U - It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel - Google Patents
It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel Download PDFInfo
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- CN208517451U CN208517451U CN201820734164.0U CN201820734164U CN208517451U CN 208517451 U CN208517451 U CN 208517451U CN 201820734164 U CN201820734164 U CN 201820734164U CN 208517451 U CN208517451 U CN 208517451U
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- blowing tube
- oxygen lance
- oxygen
- argon blowing
- annular groove
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Abstract
The utility model discloses a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel, oxygen lance including furnace bottom is arranged in, argon blowing tube is socketed on the outside of the oxygen lance, cooling water coil is provided between oxygen lance and argon blowing tube, the exit normal of oxygen lance is upward, the outlet of argon blowing tube tilts outward, the export direction of argon blowing tube and the export direction angle of oxygen lance are 50 °, annular groove is provided between oxygen lance and argon blowing tube, cooling water coil is located at the top of annular groove, refractory brick is equipped between annular groove and cooling water coil, channel is provided between annular groove and the lateral wall of argon blowing tube.The utility model can improve the deficiencies in the prior art, improve the uniformity for oxygen blowing in molten steel carbon removal treatment.
Description
Technical field
The utility model relates to metallurgical technology field, especially a kind of smelting furnace for producing super geneva stainless steel is blown
Oxygen device.
Background technique
SUP13Cr is super martensitic stainless steel, is that nickel and molybdenum member are added on the basis of 13Cr martensitic stain less steel
Element produces.In order to reduce the phosphorus content in molten steel, need to carry out oxygen blast in smelting furnace except carbon.Existing oxygen blowing device pair
In oxygen blowing in molten steel except the processing of carbon is not uniform enough, cause the quality fluctuation of stainless steel larger.
Utility model content
The smelting furnace that the technical problem to be solved by the present invention is to provide a kind of for producing super geneva stainless steel is blown
Oxygen device is able to solve the deficiencies in the prior art, improves the uniformity for oxygen blowing in molten steel carbon removal treatment.
In order to solve the above technical problems, technical solution adopted in the utility model is as follows.
It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel, the oxygen lance including furnace bottom is arranged in, institute
It states and is socketed with argon blowing tube on the outside of oxygen lance, cooling water coil, the exit normal of oxygen lance are provided between oxygen lance and argon blowing tube
Upwards, the outlet of argon blowing tube tilts outward, and the export direction of argon blowing tube and the export direction angle of oxygen lance are 50 °, oxygen blast
Annular groove is provided between pipe and argon blowing tube, cooling water coil is located at the top of annular groove, annular groove and cooling water pond
It is equipped with refractory brick between pipe, is provided with channel between annular groove and the lateral wall of argon blowing tube.
Preferably, the argon blowing tube outlet is located at the lower section of oxygen lance outlet, at a distance of 10~15cm.
Preferably, the flow of the argon blowing tube is 1.2~1.5 times of oxygen lance flow.
Preferably, several wolfram steel heat conductive rods are each provided with inside the oxygen lance and argon blowing tube, on wolfram steel heat conductive rod
Through-hole is offered, the top of wolfram steel heat conductive rod is in contact with cooling water coil.
Brought beneficial effect is by adopting the above technical scheme: the utility model is by improving oxygen lance and argon blowing tube
Purging structure, the driving force sprayed outward using argon gas is stirred molten steel, accelerates circulation effect of the molten steel in furnace
Rate improves the uniformity of oxygen and steel contacts.Position between argon gas stream and oxygen stream, due to the high velocity stream of outer sidewind
It is dynamic, this region can be made to form negative pressuren zone, so that the molten steel in outside constantly enters annular groove, and pass through channel to outflow
Out.The circulating path of this molten steel can effectively improve the cycle efficieny of molten steel near oxygen stream, significantly improve molten steel and oxygen
Contact uniformity.Since oxygen lance and argon blowing tube are using structure is arranged, to only be arranged one group using intercooled mode
Cooling protection while for inside and outside two groups of tracheaes can be realized in cooling water coil.By the way that refractory brick is arranged, molten steel can be reduced
Heat exchange between cooling water, to reduce temperature fluctuation when molten steel flows through oxygen blowing device.Wolfram steel heat conductive rod can be improved
The cooling efficiency of cooling water.
Detailed description of the invention
Fig. 1 is the structure chart of a specific embodiment in the utility model.
Fig. 2 is the structure chart of oxygen lance exit site in a specific embodiment in the utility model.
In figure: 1, oxygen lance；2, argon blowing tube；3, cooling water coil；4, annular groove；5, refractory brick；6, channel；7, wolfram steel
Heat conductive rod；8, through-hole；9, spiral stream guidance slot；10, outer cover；11, bolt；12, clathrum.
Specific embodiment
The standardized element used in the utility model can commercially, and shaped piece is according to specification and attached
The record of figure can carry out it is customized, the specific connection type of each part be all made of in the prior art mature bolt, rivet,
The conventional means such as welding, stickup, this will not be detailed here.
Referring to Fig.1-2, one specific embodiment of the utility model includes the oxygen lance 1 that furnace bottom is arranged in, the oxygen blast
It is socketed with argon blowing tube 2 on the outside of pipe 1, cooling water coil 3, the exit normal of oxygen lance 2 are provided between oxygen lance 1 and argon blowing tube 2
Upwards, the outlet of argon blowing tube 2 tilts outward, and the export direction of argon blowing tube 2 and the export direction angle of oxygen lance are 50 °, blows
Be provided with annular groove 4 between oxygen pipe 1 and argon blowing tube 2, cooling water coil 3 is located at the top of annular groove 4, annular groove 4 with
It is equipped with refractory brick 5 between cooling water coil 3, channel 6 is provided between annular groove 4 and the lateral wall of argon blowing tube 2.It is described to blow
The outlet of argon pipe 2 is located at the lower section that oxygen lance 1 exports, at a distance of 10cm.The flow of the argon blowing tube 2 is the 1.5 of 2 flow of oxygen lance
Times.It is each provided with several wolfram steel heat conductive rods 7 inside oxygen lance 1 and argon blowing tube 2, offers through-hole 8, tungsten on wolfram steel heat conductive rod 7
The top of steel heat conductive rod 7 is in contact with cooling water coil 3.
The utility model utilizes the negative pressuren zone formed between oxygen lance 1 and argon blowing tube 2, improves circulating for molten steel
Property, so that it be made adequately to be contacted with oxygen, improve the effect that oxygen blast removes carbon.
In addition, the inner wall in oxygen lance 1 is provided with spiral stream guidance slot 9, realize that the spiral of oxygen sprays, to improve oxygen
Stirring effect of the stream for molten steel itself.Pass through bolt 11 respectively in the exit of oxygen lance 1 and argon blowing tube 2 and is connected with outer cover
10, clathrum 12 is fixed in outer cover 10.Since the temperature in exit is lower, gather so that molten steel can generate solidification in exit
Collection, gradually leads to outlet obstruction.By the way that dismountable outer cover 10 is arranged, it is attached to cured steel slag on clathrum 12, then
It can guarantee the unimpeded of outlet by regularly replacing outer cover 10.
In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ",
The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on
Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to the utility model
Limitation.
The basic principles and main features of the present invention and the advantages of the present invention have been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only illustrate the principles of the present invention, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
It will have various changes and improvements, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (4)
1. a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel, the oxygen lance (1) including furnace bottom is arranged in,
It is characterized in that: being socketed with argon blowing tube (2) on the outside of the oxygen lance (1), be provided with cooling between oxygen lance (1) and argon blowing tube (2)
The exit normal of water coil (3), oxygen lance (1) is upward, and the outlet of argon blowing tube (2) tilts outward, the exporter of argon blowing tube (2)
It is 50 ° to the export direction angle with oxygen lance, is provided between oxygen lance (1) and argon blowing tube (2) annular groove (4), it is cooling
Water coil (3) is located at the top of annular groove (4), and refractory brick (5) are equipped between annular groove (4) and cooling water coil (3),
Channel (6) are provided between annular groove (4) and the lateral wall of argon blowing tube (2).
2. according to claim 1 for producing the smelting furnace oxygen blowing device of super geneva stainless steel, it is characterised in that: institute
The lower section that argon blowing tube (2) outlet is located at oxygen lance (1) outlet is stated, at a distance of 10~15cm.
3. according to claim 2 for producing the smelting furnace oxygen blowing device of super geneva stainless steel, it is characterised in that: institute
The flow for stating argon blowing tube (2) is 1.2~1.5 times of oxygen lance (1) flow.
4. according to claim 1 for producing the smelting furnace oxygen blowing device of super geneva stainless steel, it is characterised in that: institute
It states and is each provided with several wolfram steel heat conductive rods (7) inside oxygen lance (1) and argon blowing tube (2), offered on wolfram steel heat conductive rod (7) logical
The top in hole (8), wolfram steel heat conductive rod (7) is in contact with cooling water coil (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734164.0U CN208517451U (en) | 2018-05-17 | 2018-05-17 | It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820734164.0U CN208517451U (en) | 2018-05-17 | 2018-05-17 | It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208517451U true CN208517451U (en) | 2019-02-19 |
Family
ID=65339285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820734164.0U Active CN208517451U (en) | 2018-05-17 | 2018-05-17 | It is a kind of for producing the smelting furnace oxygen blowing device of super geneva stainless steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208517451U (en) |
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2018
- 2018-05-17 CN CN201820734164.0U patent/CN208517451U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 054800 No.16, Huagong Avenue, Qinghe County, Xingtai City, Hebei Province Patentee after: AVIC Shangda superalloy materials Co.,Ltd. Address before: 054800 No.16, Huagong Avenue, Qinghe County, Xingtai City, Hebei Province Patentee before: AVIC SHANGDA SUPER ALLOYS Co.,Ltd. |