CN201545871U - Converter mouth-dedicated oxygen lance sprayer - Google Patents
Converter mouth-dedicated oxygen lance sprayer Download PDFInfo
- Publication number
- CN201545871U CN201545871U CN2009202173527U CN200920217352U CN201545871U CN 201545871 U CN201545871 U CN 201545871U CN 2009202173527 U CN2009202173527 U CN 2009202173527U CN 200920217352 U CN200920217352 U CN 200920217352U CN 201545871 U CN201545871 U CN 201545871U
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- China
- Prior art keywords
- oxygen
- converter mouth
- converter
- steel
- oxygen lance
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Abstract
A converter mouth-dedicated oxygen lance sprayer belongs to the technical field of metallurgy steelmaking, and is used for solving the problem that the converter mouth adhered slag and cold steel is difficult to clean. The technical scheme is that the oxygen lance sprayer comprises a water outlet layer, a water outlet layer and an oxygen supply pipeline which are arranged from the outside and the inside; the outlet side of the sprayer is uniformly distributed with oxygen spray holes, and after improvement, the included angle Alpha of the axes of the oxygen spray hole and the horizontal direction is 0 to 45 degrees. In the utility model, the oxygen stream sprayed from the oxygen lance sprayer is mainly sprayed to the converter mouth, and can quickly burn after contacting with the steel slag coagulated on the converter mouth or the cold steel under the converter mouth, the steel slag or the cold steel is melted and flows into the converter or changes into gas to flow into the flue, so the converter mouth or the area under the converter mouth can be conveniently and fast cleaned, the converter mouth steel structure and the burner liner brick of the converter mouth can not be damaged, and the labor intensity of the operators and the accident rate can be greatly reduced.
Description
Technical field
The utility model relates to a kind of steel-making instrument, especially for the special-purpose oxygen lance blow head of steel-making converter fire door, belongs to metallurgical steelmaking technical field.
Background technology
Steel-making converter unavoidably can produce splash in converting process.The slag mixing splashings that produce in the stove are discharged in stove in company with gas, and through in the converter mouth, because temperature descends, the part slag just condenses on the fire door.Because condensing for a long time of slag, it is more and more littler that fire door can become, and need in time clear up.Also there are the problems referred to above in converter extracting vanadium in the vanadium extraction production process, higher because of its product vanadium slag viscosity, when converter extracting vanadium went out half steel, vanadium slag can be piled up at converter mouth.Moreover because of the furnace body temperature of converter extracting vanadium is lower, when it was converted iron or goes out half steel, molten iron or half steel can condensations below converter mouth, caused the converter mouth below to be stained with a large amount of cold steel of knot.Vanadium slag is piled up at converter mouth, the condensation below converter mouth of cold steel, and the lighter can influence converter operation and technical indicator, and the moment of fascinating that weight person can influence converter causes a serious accident.
At present, cleaning condenses in the slag on the converter mouth, and universal method is to adopt mechanical cleaning, as removing with the pneumatic pick of taking off the stove machine.The shortcoming of mechanical cleaning is that clearance time is long, influences the operating rate of converter, and damages the steel construction of fire door and the backup lining brick of converter easily.Be stained with a large amount of cold steel of knot for the converter mouth below, normally burn with oxygen lance, this method has a strong impact on the operating rate of converter equally, and simultaneously, operative employee's labour intensity also can increase.
No matter steel-making converter or converter extracting vanadium all can run into fire door in process of production and be stained with the situation that slag is stained with cold steel, but still do not have at present both at home and abroad the proven technique means to fire door be stained with slag, cold steel is effectively handled.Therefore, a kind of converter mouth is stained with the new technology that slag, cold steel effectively handle is very necessary in exploitation.
Summary of the invention
The utility model is used to solve the defective of above-mentioned prior art and provides a kind of converter fire door special-purpose oxygen lance blow head, utilizes this shower nozzle can clear up fire door fast and is stained with slag, cold steel, and do not damage fire door steel construction and converter lining brick.
The alleged problem of the utility model solves by the following technical programs:
The special-purpose oxygen lance blow head of a kind of converter fire door, its formation comprise water-yielding stratum, water inlet layer and the oxygen supply pipeline that ecto-entad is provided with, and at the uniform oxygen spraying hole of described shower nozzle outlet side, its special feature is: the angle α of described oxygen spraying hole axis and horizontal direction is 0-45 °.
The special-purpose oxygen lance blow head of above-mentioned converter fire door, the number of described oxygen spraying hole is 8-25.
The special-purpose oxygen lance blow head of above-mentioned converter fire door, the inwall of described oxygen spraying hole is straight tubular.
The utility model is stained with the problem that slag, cold steel be difficult to clear up at converter mouth and has been designed the special-purpose oxygen lance blow head of a kind of converter fire door, this shower nozzle to oxygen lance blow head structure commonly used improvement, according to the demand of oxygen blast slag, suitable oxygen spraying hole orientation, number and oxygen spraying hole shape have been determined.Through this improvement, the Oxygen Flow that change fire door oxygen lance blow head ejects mainly is ejected into converter mouth, can contact back burning rapidly with converter mouth agglomerative slag or with the cold steel of fire door below, fusing also flows in the stove, perhaps become gaseous state to enter flue, thereby easily and efficiently converter mouth or its lower zone are cleaned out.Changing fire door oxygen rifle simultaneously further reduces for the related requests such as temperature of oxygen pressure, cooling water flow, Inlet and outlet water.On probation showing, the utility model cleaning fire door speed is fast, cleans out, and does not damage the backup lining brick of fire door steel construction and converter, can also reduce operative employee's labour intensity and casualty ratio of accidents significantly.
Description of drawings
Fig. 1 is the utility model structural representation.
Label is as follows in the accompanying drawing: 1. oxygen lance blow head, 2. water-yielding stratum, 3. water inlet layer, 4. oxygen supply pipeline, 5. oxygen spraying hole.
Embodiment
Referring to Fig. 1, the special-purpose oxygen lance blow head 1 of converter fire door described in the utility model, its formation comprises water-yielding stratum 2, water inlet layer 3 and the oxygen supply pipeline 4 that ecto-entad is provided with, at the uniform oxygen spraying hole 5 of the outlet side of described oxygen lance blow head 1.This being exclusively used in of oxygen lance blow head fire door, the Oxygen Flow that shower nozzle ejects is answered level of approximation or downward with the horizontal direction Small angle, mainly is ejected into converter mouth.Therefore the scope of the angle α of oxygen spraying hole axis and horizontal direction is 0-45 °, and more suitable angle is 0-30 °.Oxygen lance blow head is used to clear up fire door, and the number of oxygen spraying hole is many more, and the dead angle is more little during the cleaning fire door, but the hole count increase, the aperture of oxygen spraying hole is corresponding will to be reduced, and the Oxygen Flow thigh is also little, is unfavorable for clearing up fire door.Above-mentioned combined factors considers that the number of oxygen spraying hole is 10-20.The inwall of oxygen spraying hole adopts straight tubular construction.
With the special-purpose oxygen rifle of 100T converter fire door is example: the water-yielding stratum outside dimension is Φ 245mm, water inlet layer outside dimension Φ 203mm, the oxygen supply pipeline outside dimension is Φ 159mm, the oxygen spraying hole number is 15, oxygen spraying hole aperture Φ 20mm, the angle α of oxygen spraying hole axis and horizontal direction is 15 °.
Claims (3)
1. the special-purpose oxygen lance blow head of a converter fire door, its formation comprises water-yielding stratum (2), water inlet layer (3) and the oxygen supply pipeline (4) that ecto-entad is provided with, at the uniform oxygen spraying hole of described shower nozzle outlet side (5), it is characterized in that: the angle α of described oxygen spraying hole axis and horizontal direction is 0-45 °.
2. the special-purpose oxygen lance blow head of converter fire door according to claim 1 is characterized in that: the number of described oxygen spraying hole (5) is 8-25.
3. the special-purpose oxygen lance blow head of converter fire door according to claim 1 and 2, it is characterized in that: the inwall of described oxygen spraying hole (5) is straight tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202173527U CN201545871U (en) | 2009-09-29 | 2009-09-29 | Converter mouth-dedicated oxygen lance sprayer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202173527U CN201545871U (en) | 2009-09-29 | 2009-09-29 | Converter mouth-dedicated oxygen lance sprayer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201545871U true CN201545871U (en) | 2010-08-11 |
Family
ID=42601040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202173527U Expired - Lifetime CN201545871U (en) | 2009-09-29 | 2009-09-29 | Converter mouth-dedicated oxygen lance sprayer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201545871U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215407A (en) * | 2013-04-23 | 2013-07-24 | 邯钢集团邯宝钢铁有限公司 | Method for cleaning dry slag of assistant muzzle by flame at converter mouth |
| CN109371197A (en) * | 2018-12-24 | 2019-02-22 | 山东崇盛冶金氧枪有限公司 | A kind of change fire door purging device for steelmaking converter |
| CN115386674A (en) * | 2022-08-02 | 2022-11-25 | 湖南华菱涟源钢铁有限公司 | Method for removing converter mouth slagging |
-
2009
- 2009-09-29 CN CN2009202173527U patent/CN201545871U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103215407A (en) * | 2013-04-23 | 2013-07-24 | 邯钢集团邯宝钢铁有限公司 | Method for cleaning dry slag of assistant muzzle by flame at converter mouth |
| CN109371197A (en) * | 2018-12-24 | 2019-02-22 | 山东崇盛冶金氧枪有限公司 | A kind of change fire door purging device for steelmaking converter |
| CN115386674A (en) * | 2022-08-02 | 2022-11-25 | 湖南华菱涟源钢铁有限公司 | Method for removing converter mouth slagging |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100811 |