CN203593767U - Non-stick steel RH vacuum furnace oxygen lance - Google Patents
Non-stick steel RH vacuum furnace oxygen lance Download PDFInfo
- Publication number
- CN203593767U CN203593767U CN201320801121.7U CN201320801121U CN203593767U CN 203593767 U CN203593767 U CN 203593767U CN 201320801121 U CN201320801121 U CN 201320801121U CN 203593767 U CN203593767 U CN 203593767U
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- CN
- China
- Prior art keywords
- steel
- lance
- rifle
- shell
- pipe
- 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 - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 30
- 239000010959 steel Substances 0.000 title claims abstract description 30
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 25
- 239000001301 oxygen Substances 0.000 title claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 12
- 230000007704 transition Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims 2
- 230000003749 cleanliness Effects 0.000 abstract description 5
- 238000007789 sealing Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000005261 decarburization Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model discloses a non-stick steel RH vacuum furnace oxygen lance which is composed of a lance shell, a short pipe connected with the lance shell, a lance head connected with the short pipe; a cold water pipe mounted in the lance shell, a return pipe mounted in the cold water pipe; a gas pipe mounted in the return pipe, and an oxygen pipe mounted in the gas pipe, wherein the outline of the part from the lance head, via the short pipe, to the lance shell is a smooth inverted cone transitional section. The non-stick steel RH vacuum furnace oxygen lance has the following characteristics: the surface of the lance shell is prevented from being steel-sticking, the oxygen lance is prevented from affecting the cleanliness of the molten steel of other types of steel when used next time, and the non-stick steel RH vacuum furnace oxygen lance is easy to implement.
Description
Technical field
The utility model relates to a kind of steel making oxygen lance, specifically belongs to a kind of RH vacuum oven oxygen rifle of not being stained with steel.
Background technology
RH-MFB top rifle in the time of oxygen decarburization because the splash of reaction between carbon and oxygen molten steel is very severe.But because this Lance burner is from the about 2.5-3m of molten steel face; the molten steel of splash is very easily bonded on rifle head; the residual steel being bonded in the process of carrying rifle on rifle head very easily draws bad by the Expansion sealing circle that is fixed on vacuum chamber top; cause system gas leakage to destroy system vacuum degree; thereby impact is produced, be bonded in addition residual steel on rifle head in process of production residual steel come off affecting next stove molten steel composition, easily produce component segregation and cleanliness factor; often there will be waste product, cause qualification rate to reduce.The steel bonding phenomenon causing on the surface of oxygen rifle, through analysis and research in a large number, this is mainly because the external shape of this rifle is due to vertical barrel type.
Utility model content
The purpose of this utility model is to overcome the deficiency that prior art exists, provide a kind of and can prevent that rifle shell surface is not stained with steel, the Expansion sealing circle that is fixed on vacuum chamber top is drawn bad, cause system gas leakage to destroy system vacuum degree, and prevent from affecting the RH vacuum oven oxygen rifle of not being stained with steel of oxygen rifle Cleanliness of Molten Steel to other steel grades in the time that used next time.
Realize the technical measures of above-mentioned purpose:
A kind of RH vacuum oven oxygen rifle of not being stained with steel, the short tube, the rifle head being connected with short tube that are connected by rifle shell, with rifle shell, be contained in cold water pipe in rifle shell, be contained in return water pipe in cold water pipe, be contained in the gas pipe in return water pipe, the oxygen hose being contained in gas pipe forms, it is: be level and smooth back taper transition section from rifle head through short tube to the profile of rifle shell part.
It is characterized in that: the length of back taper transition section is no more than 600mm.
Feature of the present utility model is: can prevent that rifle shell surface is not stained with steel, prevent from affecting oxygen rifle Cleanliness of Molten Steel to other steel grades in the time that used next time, easily implement.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure: 1-rifle shell, 2-short tube, 3-rifle head, 4-return water pipe, 5-cold water pipe, 6-oxygen hose, 7-back taper transition section, 8-gas pipe.
Embodiment
Be described further below in conjunction with accompanying drawing:
A kind of RH vacuum oven oxygen rifle of not being stained with steel, the short tube 2, the rifle head 3 being connected with short tube 2 that are connected by rifle shell 1, with rifle shell 1, be contained in cold water pipe 5 in rifle shell 1, be contained in return water pipe 4 in cold water pipe 5, be contained in the gas pipe 8 in return water pipe 4, the oxygen hose 6 being contained in gas pipe 8 forms, it is level and smooth back taper transition section 7 from rifle head 3 through short tube 2 to the profile of rifle shell 1 part; The length of back taper transition section 7 is no more than 600mm.
Due to the front end of oxygen rifle body is done to level and smooth back taper, under the effect of water-cooled, be bonded in the residual steel energy self falling on rifle.Thereby prevent from the Expansion sealing circle that is fixed on vacuum chamber top being drawn bad and causing system gas leakage to destroy system vacuum degree, and affected the problem of oxygen rifle impact of the Cleanliness of Molten Steel on other steel grades in the time that used next time.
This embodiment only exemplifies for the best, not the restricted enforcement to technical solutions of the utility model.
Claims (2)
1. be not stained with the RH vacuum oven oxygen rifle of steel for one kind, the short tube, the rifle head being connected with short tube that are connected by rifle shell, with rifle shell, be contained in return water pipe in water cooling tube, the water cooling tube in rifle shell, be contained in the gas pipe in return water pipe, the oxygen hose being contained in gas pipe forms, it is characterized in that: be level and smooth back taper transition section from rifle head through short tube to the profile of rifle shell part.
2. a kind of RH vacuum oven oxygen rifle of not being stained with steel as claimed in claim 1, is characterized in that: the length of back taper transition section is no more than 600mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801121.7U CN203593767U (en) | 2013-12-09 | 2013-12-09 | Non-stick steel RH vacuum furnace oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320801121.7U CN203593767U (en) | 2013-12-09 | 2013-12-09 | Non-stick steel RH vacuum furnace oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203593767U true CN203593767U (en) | 2014-05-14 |
Family
ID=50674665
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320801121.7U Expired - Lifetime CN203593767U (en) | 2013-12-09 | 2013-12-09 | Non-stick steel RH vacuum furnace oxygen lance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203593767U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660275A (en) * | 2018-05-30 | 2018-10-16 | 北京科技大学 | A method of steel-making supersonic jet oxygen rifle and its reduction injection jet noise |
-
2013
- 2013-12-09 CN CN201320801121.7U patent/CN203593767U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108660275A (en) * | 2018-05-30 | 2018-10-16 | 北京科技大学 | A method of steel-making supersonic jet oxygen rifle and its reduction injection jet noise |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171221 Address after: No. 12, No. four, metallurgical Avenue, Qingshan District, Wuhan, Hubei Province, attached to four Patentee after: WUHAN HANWEI SECONDARY REFINING ENGINEERING Co.,Ltd. Address before: 430080 Wuhan, Hubei Friendship Road, No. 999, Wuchang Patentee before: WUHAN IRON AND STEEL (GROUP) Corp. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140514 |