CN205999411U - A kind of oxygen rifle pipette tips - Google Patents
A kind of oxygen rifle pipette tips Download PDFInfo
- Publication number
- CN205999411U CN205999411U CN201621027076.4U CN201621027076U CN205999411U CN 205999411 U CN205999411 U CN 205999411U CN 201621027076 U CN201621027076 U CN 201621027076U CN 205999411 U CN205999411 U CN 205999411U
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- CN
- China
- Prior art keywords
- pipette tips
- oxygen
- weather board
- outer housing
- jetting
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a kind of oxygen rifle pipette tips, including oxygen conveying pipe, weather board and pipette tips outer housing, between described oxygen conveying pipe, weather board and pipette tips outer housing, correspondence leaves cooling water circulation passage, and oxygen conveying pipe end is provided with several jetting oxygen tubes and jetting oxygen tube is passed through weather board and is connected with pipette tips outer housing；For conical surface termination and conical surface center offers main water hole for weather board termination, and main water hole periphery is provided with auxiliary water hole or crosses water seam；This pipette tips is passed through to arrange weather board end structure, has reached the purpose arranging pipette tips end flow field, controlling flow, has improve pipette tips end intensity of cooling and cooling uniformity；Also by one intermediate connector of increase; solve that steel plant's scene pipette tips, body of a gun copper steel heterogeneous material welding difficulty be big, poor welding quality the problems such as; in addition, the jetting oxygen tube exit of this pipette tips is provided with straight tube protection section, effective protection jetting oxygen tube outlet cone section exempts from scaling loss.
Description
Technical field
This utility model belongs to field of steel-making and in particular to a kind of oxygen rifle pipette tips.
Background technology
In pneumatic steelmaking, oxygen spray is entered converter molten pool and carries out smelting operation by oxygen rifle pipette tips.The work of oxygen rifle pipette tips
Environment is extremely severe, there is the extreme cases such as high temperature, intense radiant heat, molten steel and slag splashing, can affect pipette tips in converter
Service life.As the critical component of pneumatic steelmaking, simplify oxygen rifle structure, improve the service life of pipette tips, reduce smelting cost
Become the urgent needss of smelter.
In the face of severe working environment, existing oxygen rifle pipette tips mainly adopt the good red copper of heat conductivity passing through to forge or
The mode of casting manufactures, simultaneously cooling water cooling pipette tips in cooperation rifle；The oxygen rifle body of a gun is steel material, by pipette tips with the body of a gun even
It is connected together, traditional method is using copper-steel different-metal material welding.Due to the thermal conductivity of copper and steel, thermal coefficient of expansion and molten
The physical properties such as point difference is larger, and live copper-steel welding has very big difficulty.Therefore, find new technique or method is come
Connect the body of a gun to necessitate with pipette tips.
Although oxygen rifle pipette tips employ the good red copper of heat conductivity, but still fragile.Cause oxygen rifle deadline factor have with
Descend some：(1) in oxygen rifle exit, there is vigorous oxidation reaction in the high speed oxygen that pipette tips spray and the molten steel splashing, release big
The heat of amount, makes the easy ablation of pipette tips jetting oxygen tube outlet section, affects its metallurgical effect；(2) pipette tips are melted by high temperature and continuous splashing
The washing away and soak of slag and molten steel, little by little melting loss is thinning；Due to temperature continually rapid heat cycle so that shower nozzle end is easily produced
Raw cracking, with the continuity of use time, cracking progressively extends, until end infiltration or even leak are scrapped；(3) pipette tips runner sets
Meter is unreasonable, leads to pipette tips near wall water velocity to be unsatisfactory for heat exchange demand, local " water is boiled " phenomenon, makes heat exchange system
Number rapid drawdown, leads to pipette tips local to be burnt.
Content of the invention
In view of this, the purpose of this utility model is to provide that a kind of structure is simple, long service life, metallurgical effect are good
Oxygen rifle pipette tips, are difficult to ensure that with solving existing oxygen rifle pipette tips scene copper-steel welding weldquality, oxygen rifle pipette tips end intensity of cooling
Low, lack of homogeneity and pipette tips jetting oxygen tube export the problem of easy ablation.
For reaching above-mentioned purpose, this utility model provides following technical scheme：A kind of oxygen rifle pipette tips, including from the inside to the outside according to
The oxygen conveying pipe of minor tick setting, weather board and pipette tips outer housing, between described oxygen conveying pipe and weather board, weather board and pipette tips
Between outer housing, correspondence leaves cooling water circulation passage, and described oxygen conveying pipe end is provided with several jetting oxygen tubes, described jetting oxygen tube
It is connected through weather board and with pipette tips outer housing；For conical surface termination and conical surface center offers main water excessively for described weather board termination
Hole, described conical surface termination is interval with several auxiliary water holes around conical surface central periphery or crosses water seam, described assisted water
Hole or excessively water seam opening direction are consistent with cooling current direction.
Further, also include the intermediate connector being connected with pipette tips outer housing, described intermediate connector is Copper steel cladding material
Matter.
Further, described jetting oxygen tube is additionally provided with spray oxygen protection section.
Further, described spray oxygen protects section is to be arranged on the boss that jetting oxygen tube exit and center are straight tube.
Further, described spray oxygen protection section is to be arranged on the straight length in jetting oxygen tube exit.
Further, described pipette tips outer housing outer face is provided with antiradiation coating.
The beneficial effects of the utility model are：
(1) pass through to arrange weather board end structure it is achieved that the effective water conservancy diversion to cooling water and shunting, weather board termination is bored
Face cone degree and auxiliary water hole, number, size, position and the big I of main water hole of crossing water seam are according to circumstances selected
Select it is achieved that whole weather board termination is cooled down with the control of current direction and flow, reached arrangement pipette tips end flow field, controlling stream
The purpose of amount, improves pipette tips end intensity of cooling and cooling uniformity；
(2) additionally increase an intermediate connector, can easily realize the assembled in situ of pipette tips and the body of a gun, efficiently solve steel
Ironworks scene pipette tips, body of a gun copper steel heterogeneous material welding difficulty are big, poor welding quality the problems such as, greatly reduce pipette tips and gun body
Site Welding difficulty, improves bonding strength and service life；In addition, by intermediate connector is made different size, solving
The body of a gun leading to due to changing pipette tips during using shortens and makes the problem that whole oxygen rifle length shortens；
(3) jetting oxygen tube exit is provided with straight tube protection section, and the ablation can be made, effective protection spray oxygen to first occur at this position
Pipe outlet cone section exempts from scaling loss.
Brief description
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, this utility model provides as follows
Accompanying drawing illustrates：
Fig. 1 is structural representation of the present utility model.
Specific embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As illustrated, this is as illustrated, oxygen rifle pipette tips in this utility model, including spaced successively from the inside to the outside
Oxygen conveying pipe 1, weather board 2 and pipette tips outer housing 3, between described oxygen conveying pipe 1 and weather board 2, weather board 2 and pipette tips outer housing 3
Between correspondence leave cooling water circulation passage 4, described oxygen conveying pipe 1 end is provided with several jetting oxygen tubes 5, described jetting oxygen tube 5
It is connected through weather board 2 and with pipette tips outer housing 3；For conical surface termination and conical surface center offers master for described weather board 2 termination
Water hole 21, described conical surface termination is interval with several auxiliary water holes around conical surface central periphery or crosses water seam 22, described
It is consistent with cooling current direction that auxiliary water hole or excessively water stitch 22 opening directions.
Specifically, by weather board 2 termination is arranged to cone structure, and arrange on conical surface termination main water hole 21 and
Cross water seam 22, realize effective water conservancy diversion and shunting to cooling water so that cooling current are when by weather board 2 termination, a part
Along assisting water hole or crossing water seam 22 to flows, another part passes through main water hole 21 and flows to bottom centre, raising
Pipette tips end intensity of cooling and cooling uniformity；Simultaneously in the suitable water excessively of jetting oxygen tube 5 rear portion flow of cooling water the dead time
Hole, can improve the cooling uniformity of pipette tips end further.This weather board 2 can pass through adjustment end head conical degree of conical surface, adjustment auxiliary
Water hole or cross the number of water seam 22, the size of size, position and main water hole 21 controlling the cold of whole weather board 2 termination
But current direction and flow, thus reaching the purpose arranging pipette tips end flow field, controlling flow, is favorably improved the cooling of pipette tips end
Intensity and cooling uniformity.
The present embodiment also includes the intermediate connector 8 being connected with pipette tips outer housing 3, and described intermediate connector 8 is multiple for copper steel
Close material.Specifically, this intermediate connector 8 can be made using compression casting, is sawtooth using copper steel joint during compression casting
Shape；3D printing may also be employed make.Additionally increase an intermediate connector 8, can easily realize the assembled in situ of pipette tips and the body of a gun,
When being connected using intermediate connector 8, the copper end of intermediate connector 8 and pipette tips outer housing 3 weld, the steel end of intermediate connector 8 and rifle
Body 6 welds.Which efficiently solves that steel plant's scene pipette tips, body of a gun copper steel heterogeneous material welding difficulty be big, poor welding quality
The problems such as, greatly reduce pipette tips and gun body Site Welding difficulty, improve bonding strength and service life.In addition, also can lead to
Cross and intermediate connector 8 is made different size, make whole so that the body of a gun solving to lead to due to changing pipette tips during using shortens
The problem that individual oxygen rifle length shortens.
Spray oxygen protection section 7 is additionally provided with the jetting oxygen tube 5 in the present embodiment, this spray oxygen protection section 7 is to be arranged on jetting oxygen tube 5 to go out
Kou Chuqie center is the boss of straight tube, certainly, is alternatively arranged on the straight length in jetting oxygen tube 5 exit, now straight length and oxygen
Rifle pipette tips outer housing 3 is integrated.When pipette tips jetting oxygen tube 5 outlet cone section occurs ablation, due to the presence of this protection section, burning can be made
Erosion first occurs at this position, and effective protection jetting oxygen tube 5 outlet cone section exempts from scaling loss；This protection section be straight length it is ensured that
The aerodynamic performance of jetting oxygen tube, plays an important role to the metallurgical effect ensureing oxygen rifle.
As the improvement further of such scheme, described pipette tips outer housing 3 outer face is provided with antiradiation coating.This coating can
Effectively reflection molten steel radiations heat energy, fundamentally reduces the energy that pipette tips obtain, and reduces pipette tips temperature.
In oxygen rifle pipette tips, including spaced oxygen conveying pipe 1, weather board 2 and pipette tips outer housing successively from the inside to the outside
3, described oxygen conveying pipe 1 is corresponding between weather board 2, between weather board 2 and pipette tips outer housing 3 to leave cooling water circulation passage 4, described
Oxygen conveying pipe 1 end is provided with several jetting oxygen tubes 5, and described jetting oxygen tube 5 is passed through weather board 2 and is connected with pipette tips outer housing 3；
For conical surface termination and conical surface center offers main water hole 21, on described conical surface termination in the conical surface for described weather board 2 termination
Heart periphery be interval with several auxiliary water holes or cross water seam 22, described auxiliary water hole or cross water stitch 22 opening directions with cold
But current direction is consistent.
Specifically, by weather board 2 termination is arranged to cone structure, and arrange on conical surface termination main water hole 21 and
Cross water seam 22, realize effective water conservancy diversion and shunting to cooling water so that cooling current are when by weather board 2 termination, a part
Along assisting water hole or crossing water seam 22 to flows, another part passes through main water hole 21 and flows to bottom centre, raising
Pipette tips end intensity of cooling and cooling uniformity；Simultaneously in the suitable water excessively of jetting oxygen tube 5 rear portion flow of cooling water the dead time
Hole, can improve the cooling uniformity of pipette tips end further.This weather board 2 can pass through adjustment end head conical degree of conical surface, adjustment auxiliary
Water hole or cross the number of water seam 22, the size of size, position and main water hole 21 controlling the cold of whole weather board 2 termination
But current direction and flow, thus reaching the purpose arranging pipette tips end flow field, controlling flow, is favorably improved the cooling of pipette tips end
Intensity and cooling uniformity.
The present embodiment also includes the intermediate connector 8 being connected with pipette tips outer housing 3, and described intermediate connector 8 is multiple for copper steel
Close material.Specifically, this intermediate connector 8 can be made using compression casting, is sawtooth using copper steel joint during compression casting
Shape；3D printing may also be employed make.Additionally increase an intermediate connector 8, can easily realize the assembled in situ of pipette tips and the body of a gun,
When being connected using intermediate connector 8, the copper end of intermediate connector 8 and pipette tips outer housing 3 weld, the steel end of intermediate connector 8 and rifle
Body 6 welds.Which efficiently solves that steel plant's scene pipette tips, body of a gun copper steel heterogeneous material welding difficulty be big, poor welding quality
The problems such as, greatly reduce pipette tips and gun body Site Welding difficulty, improve bonding strength and service life.In addition, also can lead to
Cross and intermediate connector 8 is made different size, make whole so that the body of a gun solving to lead to due to changing pipette tips during using shortens
The problem that individual oxygen rifle length shortens.
Spray oxygen protection section 7 is additionally provided with the jetting oxygen tube 5 in the present embodiment, this spray oxygen protection section 7 is to be arranged on jetting oxygen tube 5 to go out
Kou Chuqie center is the boss of straight tube, certainly, is alternatively arranged on the straight length in jetting oxygen tube 5 exit, now straight length and oxygen
Rifle pipette tips outer housing 3 is integrated.When pipette tips jetting oxygen tube 5 outlet cone section occurs ablation, due to the presence of this protection section, burning can be made
Erosion first occurs at this position, and effective protection jetting oxygen tube 5 outlet cone section exempts from scaling loss；This protection section be straight length it is ensured that
The aerodynamic performance of jetting oxygen tube, plays an important role to the metallurgical effect ensureing oxygen rifle.
As the improvement further of such scheme, described pipette tips outer housing 3 outer face is provided with antiradiation coating.This coating can
Effectively reflection molten steel radiations heat energy, fundamentally reduces the energy that pipette tips obtain, and reduces pipette tips temperature.
Finally illustrate, preferred embodiment above only in order to the technical solution of the utility model to be described and unrestricted, to the greatest extent
Gutron is crossed above preferred embodiment and this utility model is described in detail, but those skilled in the art should manage
Solution, can make various changes, in the form and details without departing from this utility model claims institute to it
The scope limiting.
Claims (6)
1. a kind of oxygen rifle pipette tips it is characterised in that：Including spaced oxygen conveying pipe, weather board and rifle successively from the inside to the outside
Head outer housing, described oxygen conveying pipe is corresponding between weather board, between weather board and pipette tips outer housing to leave cooling water circulation passage, described
Oxygen conveying pipe end is provided with several jetting oxygen tubes, and described jetting oxygen tube is passed through weather board and is connected with pipette tips outer housing；Described
For conical surface termination and conical surface center offers main water hole, on described conical surface termination around between conical surface central periphery for weather board termination
Every be provided with several auxiliary water holes or cross water seam, described auxiliary water hole or cross water seam opening direction with cooling current direction one
Cause.
2. oxygen rifle pipette tips according to claim 1 it is characterised in that：The centre also including being connected with pipette tips outer housing is connected
Part, described intermediate connector is Copper steel cladding material.
3. the oxygen rifle pipette tips according to any one of claim 1～2 it is characterised in that：Spray oxygen is additionally provided with described jetting oxygen tube
Protection section.
4. oxygen rifle pipette tips according to claim 3 it is characterised in that：Described spray oxygen protection section is to be arranged on jetting oxygen tube outlet
Chu Qie center is the boss of straight tube.
5. oxygen rifle pipette tips according to claim 3 it is characterised in that：Described spray oxygen protection section is to be arranged on jetting oxygen tube outlet
The straight length at place.
6. oxygen rifle pipette tips according to claim 1 it is characterised in that：Described pipette tips outer housing outer face is provided with antiradiation and applies
Layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027076.4U CN205999411U (en) | 2016-08-31 | 2016-08-31 | A kind of oxygen rifle pipette tips |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621027076.4U CN205999411U (en) | 2016-08-31 | 2016-08-31 | A kind of oxygen rifle pipette tips |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999411U true CN205999411U (en) | 2017-03-08 |
Family
ID=58193718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621027076.4U Withdrawn - After Issue CN205999411U (en) | 2016-08-31 | 2016-08-31 | A kind of oxygen rifle pipette tips |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999411U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222358A (en) * | 2016-08-31 | 2016-12-14 | 中冶赛迪工程技术股份有限公司 | A kind of oxygen rifle rifle head |
| JP2020190029A (en) * | 2019-05-20 | 2020-11-26 | Ｊｆｅスチール株式会社 | Top-blown lance and refining method of molten iron therewith |
| CN114144533A (en) * | 2019-09-24 | 2022-03-04 | 西门子（中国）有限公司 | Oxygen gas transfer device, method for manufacturing oxygen gas transfer device, laval nozzle, and method for manufacturing laval nozzle |
-
2016
- 2016-08-31 CN CN201621027076.4U patent/CN205999411U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106222358A (en) * | 2016-08-31 | 2016-12-14 | 中冶赛迪工程技术股份有限公司 | A kind of oxygen rifle rifle head |
| CN106222358B (en) * | 2016-08-31 | 2018-10-02 | 中冶赛迪工程技术股份有限公司 | A kind of oxygen rifle pipette tips |
| JP2020190029A (en) * | 2019-05-20 | 2020-11-26 | Ｊｆｅスチール株式会社 | Top-blown lance and refining method of molten iron therewith |
| JP7067585B2 (en) | 2019-05-20 | 2022-05-16 | Ｊｆｅスチール株式会社 | Top-blown lance and refining method of molten iron using it |
| CN114144533A (en) * | 2019-09-24 | 2022-03-04 | 西门子（中国）有限公司 | Oxygen gas transfer device, method for manufacturing oxygen gas transfer device, laval nozzle, and method for manufacturing laval nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170308 Effective date of abandoning: 20181002 |