CN201354377Y - Adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking - Google Patents
Adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking Download PDFInfo
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- CN201354377Y CN201354377Y CNU2009200194853U CN200920019485U CN201354377Y CN 201354377 Y CN201354377 Y CN 201354377Y CN U2009200194853 U CNU2009200194853 U CN U2009200194853U CN 200920019485 U CN200920019485 U CN 200920019485U CN 201354377 Y CN201354377 Y CN 201354377Y
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- China
- Prior art keywords
- oxygen lance
- high power
- coherent jet
- converter steelmaking
- nozzle
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Abstract
The utility model relates to an adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking, which comprises a burner cap, wherein the burner cap comprises a cooling system and an oxygen jet system which is located inside the cooling system, and the oxygen jet system comprises an internal nozzle and a plurality of auxiliary holes, wherein the internal nozzle is movably connected on the center position of the burner cap, and the auxiliary holes are evenly arranged on the periphery of the internal nozzle, thereby guaranteeing the jet stream of the internal nozzle not to attenuate too early, forming a strong air flow column to impact the liquid water of molten metal, enabling to form a molten metal flow field in convection from the periphery to the inside, and making oxygen fully react with foreign matters in molten metal. The coherent jet oxygen lance burner cap can directly match with a currently-used oxygen lance only by replacing the burner cap. After trial, the coherent jet oxygen lance burner cap can increase 20% oxygen utilization ratio, reduces the cost of steelmaking, are not easy to generate the phenomena of splashing, adhesion and agglomeration in the process of steelmaking owing to high lance position, and can increase 3-5 times of service life of the oxygen lance.
Description
Technical field
The utility model relates to a kind of steel making oxygen gun sprayer, especially a kind of converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle.
Background technology
At present, converter steelmaking oxygen supply oxygen lance blow head mainly is the method manufacturing of casting or forge and press assembling with the center water-cooled with fine copper, structure formation is for evenly being provided with hole, 3-6 Lavalle on shower nozzle top disc shape housing, but development along with converter steeling technology, the type shower nozzle day by day shows its weak point, mainly shows:
1. in the converting process, be prone to phenomenons such as splash, sticking rifle, knot stone roller, production is caused detrimentally affect, when situation is serious, can only more renew rifle.
2. in the spray oxygen process, the speed of oxygen in the shower nozzle exit can reach two overtone speed, and the decay of oxygen flow thigh is too fast, and not enough to the stirring of molten steel, impact depth is shallow.This just causes the utilization ratio of oxygen on the low side, and energy consumption is big, makes tap to tap time longer.Because above-mentioned first point makes this phenomenon aggravate, the utilization ratio of oxygen significantly reduces.
3. because above-mentioned second point, the oxygen rifle in use, in order to satisfy the requirement of steel-making, reduction rifle position that can only be artificial, the distance of oxygen rifle and liquid level shortens, and makes phenomenons such as the splash in above-mentioned first, sticking rifle, knot stone roller aggravate again, and this has just caused a vicious cycle.
Present life-span of oxygen lance major cause on the low side that Here it is also is one of serious reason of steel mill's dust simultaneously.
Electric furnace is made up of rifle core and holster with the structure of coherent oxygen lance at present, and the rifle core is a spray oxygen system, and holster is a cooling system, separate on the two structure, and this structure is not suitable for the converter use.
Chinese patent ZL96210210.5 discloses a kind of mixing pass Multi-pore oxygen lance nozzle with rifle head, gun hole, its structure is to establish type hole, a Lavalle in the centre of rifle head, some straight cylindrical or sudden expansion shape hole are set on every side, but it is not the coherent oxygen lance shower nozzle, it is used for solutionization slag and carbon elimination intensification problem, and the oxygen rifle of this structure can not solve above-mentioned three problems mentioning.And this oxygen lance blow head has been eliminated.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, a kind of phenomenons such as splash, sticking rifle, knot stone roller that are not prone in steelmaking process are provided, can guarantee that the stream thigh that spray orifice sprays is unlikely to too early decay, can form a powerful air-flow column impact liquid steel level, life-span of oxygen lance is long, the converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle of efficient, energy-saving and environmental protection.
For achieving the above object, the utility model adopts following technical proposals:
A kind of converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle, comprise shower nozzle, described shower nozzle comprises cooling system and spray oxygen system, spray oxygen system is positioned at the inside of cooling system, spray oxygen system comprises an inner nozzle and some secondary holes, wherein, inner nozzle is movably connected on the central position of shower nozzle, and secondary hole evenly is arranged at around the inner nozzle.
Described inner nozzle is a Lavalle type nozzle.
Described secondary Kong Weizhi cylindrical.
Described cooling system comprises concentric outer tube and middle pipe, and middle pipe is arranged on the center of outer tube, and outer tube is the circular cylinder of forward end seal, and middle pipe front end and outer tube connect, in, be provided with preset pieces between the outer tube, in, the cavity between the outer tube is a circulation water channel.
Described secondary hole and outer tube are integral structure, and secondary hole evenly is positioned on the inwall of circular cylinder.
Described inner nozzle and secondary hole are positioned at shower nozzle central concave position, and the showerhead of inner nozzle and secondary hole front end divides formation one cylindrical channel.
Described shower nozzle end is provided with sealing member.
Described sealing member is the O RunddichtringO.
Described outer tube is to be welded by copper pipe and steel pipe.
It is step-like that described middle pipe is one-level, and its nose thickness is greater than end thickness.
The novel vesicular structure by the past of the utility model changes a main aperture (inner nozzle) into, some secondary holes are set around it according to demand, can guarantee that like this stream thigh that main aperture sprays is unlikely to too early decay, and can form a powerful air-flow column impact liquid steel level, according to liquid flow field characteristic and type of furnace structure, can form a molten metal flow field, make that oxygen can be fully and the reaction of the impurity in the molten steel by the inside convection current of periphery.Inner nozzle is made a series of forms that size does not wait according to actual needs, because inner nozzle is movable connection, can change different inner nozzles as required, thereby changes oxygen flow and oxygen supply intensity.
Principal feature of the present utility model:
1. be in a ratio of whole processing once-forming with traditional coherent oxygen lance.
2. only change inner nozzle according to different manufacturers and can satisfy steel-making requirements, accomplish the many usefulness of a rifle, promptly universal.
3. compare with traditional Oxygen Lance Nozzle for Converter, the utility model can solve nozzle interior cooling problem, promptly solves and easily burns rifle, and central part easily melts problem.
4. the utility model can directly mate with the oxygen rifle that uses at present, and promptly water coolant is constant, and oxygen system is constant, and whole oxygen rifle is constant, only needs to change shower nozzle and gets final product, and has reduced production cost.
Through test, utilize the utility model can make the utilization ratio of oxygen improve 20%, greatly reduce the cost of steel-making, and because the rifle position is high, be not prone to phenomenons such as splash, sticking rifle, knot stone roller in steelmaking process, life-span of oxygen lance can improve 3-5 doubly, saves and changes the time that rifle consumes.The utlity model has advantages such as efficient, energy-saving and environmental protection.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the left view of Fig. 1;
1. outer tubes wherein, 2. in pipe, 3. inner nozzle, 4. preset pieces A, 5. preset pieces B, 6.O RunddichtringO, 7. secondary hole, 8. cavity.
Embodiment
Below in conjunction with drawings and Examples the utility model is further specified.
Among Fig. 1, Fig. 2, shower nozzle comprises cooling system and spray oxygen system, and spray oxygen system is positioned at the inside of cooling system, spray oxygen system comprises an inner nozzle 3 and some secondary holes 7, wherein, inner nozzle 3 is movably connected on the central position of shower nozzle, and secondary hole 7 evenly is arranged at around the inner nozzle 3.Inner nozzle 3 is a Lavalle type nozzle.Acute hole 7 is straight cylindrical.
Cooling system comprises concentric outer tube 1 and middle pipe 2, middle pipe 2 is arranged on the center of outer tube 1, and outer tube 1 is the circular cylinder of forward end seal, and middle pipe 2 front ends and outer tube 1 connect, be provided with preset pieces A4 and preset pieces B5 between middle pipe 2 and the outer tube 1, the cavity 8 between middle pipe 2 and the outer tube 1 is a circulation water channel.
The shower nozzle end is provided with O RunddichtringO 6.
It is step-like that middle pipe 2 is one-level, and its nose thickness is greater than end thickness.
The novel vesicular structure by the past of the utility model changes a main aperture (inner nozzle 3) into, some secondary holes 7 are set around it according to demand, can guarantee that like this stream thigh that main aperture sprays is unlikely to too early decay, and can form a powerful air-flow column impact liquid steel level, according to liquid flow field characteristic and type of furnace structure, can form a molten metal flow field, make that oxygen can be fully and the reaction of the impurity in the molten steel by the inside convection current of periphery.
The utility model can directly mate with the oxygen rifle that uses at present, and promptly water coolant is constant, and oxygen system is constant, and whole oxygen rifle is constant, only needs to change shower nozzle and gets final product.
Claims (10)
1. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle, comprise shower nozzle, it is characterized in that: described shower nozzle comprises cooling system and spray oxygen system, spray oxygen system is positioned at the inside of cooling system, spray oxygen system comprises an inner nozzle and some secondary holes, wherein, inner nozzle is movably connected on the central position of shower nozzle, and secondary hole evenly is arranged at around the inner nozzle.
2. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1 is characterized in that: described inner nozzle is a Lavalle type nozzle.
3. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1 is characterized in that: described secondary Kong Weizhi cylindrical.
4. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1, it is characterized in that: described cooling system comprises concentric outer tube and middle pipe, middle pipe is arranged on the center of outer tube, outer tube is the circular cylinder of forward end seal, middle pipe front end and outer tube connect, in, be provided with preset pieces between the outer tube, in, the cavity between the outer tube is a circulation water channel.
5. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1 is characterized in that: described secondary hole and outer tube are integral structure, and secondary hole evenly is positioned on the inwall of circular cylinder.
6. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1 is characterized in that: described inner nozzle and secondary hole are positioned at shower nozzle central concave position, and the showerhead of inner nozzle and secondary hole front end divides formation one cylindrical channel.
7. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 1 is characterized in that: the shower nozzle end is provided with sealing member.
8. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 7 is characterized in that: described sealing member is the O RunddichtringO.
9. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 4 is characterized in that: described outer tube is to be welded by copper pipe and steel pipe.
10. converter steelmaking adjustable ultra high power coherent jet oxygen lance nozzle according to claim 4 is characterized in that: it is step-like that described middle pipe is one-level, and its nose thickness is greater than end thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200194853U CN201354377Y (en) | 2009-02-20 | 2009-02-20 | Adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200194853U CN201354377Y (en) | 2009-02-20 | 2009-02-20 | Adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201354377Y true CN201354377Y (en) | 2009-12-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200194853U Expired - Fee Related CN201354377Y (en) | 2009-02-20 | 2009-02-20 | Adjustable integrated ultra-high power coherent jet oxygen lance burner cap for converter steelmaking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201354377Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152635A (en) * | 2014-08-07 | 2014-11-19 | 中冶赛迪上海工程技术有限公司 | Top lance for RH vacuum refining |
-
2009
- 2009-02-20 CN CNU2009200194853U patent/CN201354377Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104152635A (en) * | 2014-08-07 | 2014-11-19 | 中冶赛迪上海工程技术有限公司 | Top lance for RH vacuum refining |
| CN104152635B (en) * | 2014-08-07 | 2016-02-03 | 中冶赛迪上海工程技术有限公司 | A kind of RH vacuum refinement top rifle |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091202 Termination date: 20110220 |