CN102022917A - Top gun applied to steel production - Google Patents
Top gun applied to steel production Download PDFInfo
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- CN102022917A CN102022917A CN 201110000083 CN201110000083A CN102022917A CN 102022917 A CN102022917 A CN 102022917A CN 201110000083 CN201110000083 CN 201110000083 CN 201110000083 A CN201110000083 A CN 201110000083A CN 102022917 A CN102022917 A CN 102022917A
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- rifle
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- inlet pipe
- pipe
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Abstract
The invention provides a top gun applied to steel production in the technical field of steel production. The top gun comprises a Laval gun head (1), a gun head center pipe (2), a fuel pipe (3), a marine riser (4), an outer pipe (5), an oxygen pipe (6), a flame detector installing hole (7), an isolation device (8), a gun body flexibility regulating device (9), a hanging device I (10), a cooling water outlet pipe (11), a cooling water inlet pipe (12), a combusting oxygen inlet pipe (13), a fuel inlet pipe (14), a nitrogen inlet pipe (15), a hanging device II (16) and a center oxygen inlet pipe(17), wherein the Laval gun head (1) of the top gun is made of TU2 oxygen-free copper materials, and a chromium electroplating hard layer is additionally arranged on the inner surface of the gun head center pipe (2). The top gun can prolong the service life of the gun head, can increase the powder injecting and oxygen blowing quantity in unit time, shorten the power injecting and oxygen blowing time, and lower the manufacture cost of the top gun.
Description
Technical field
The invention belongs to the steel production technical field, more particularly, relate to a kind of top rifle that steel are produced that is applied to.
Background technology
The top rifle that is applied to electrical sheet production of the prior art, it has burning intensification, oxygen decarburization, powder injection desulphurization, scarfing cinder and goes to slip multiple function, but in actual use, there is following several problem in the top rifle of this structure: what 1) adopt because of electrical sheet production is " simply connected " technology, dust in unit interval, blowing oxygen quantity is big, produce two problems thus: the one, aditus laryngis aperture, Lavalle is less than normal, dusts, oxygen blow duration is longer relatively; The 2nd, rifle head body is a TU2 oxygen-free copper spare, and the central tube inner surface is directly to be processed by mother metal, causes the hole surface wear extent big greatly in the amount of dusting, and influences rifle head service life; 2) bigger than normal because of the spray-hole angle design of rifle head, when dusting the anti-material in the vacuum tank is corroded, washes away with oxygen blast, influence the service life of vacuum tank; 3) outer tube of top rifle and rifle head weld are to form with the two joint TU2 no-oxygen copper plates welding production that curls, and weld seam is many, and shaping processing and welding difficulty are big, and cylindricity, linearity are poor, easily and the Expansion sealing friction, cause transducer wall ' s abrasion to leak; 4) top rifle spare part, reparation rely on import fully, and the order cycle time is long, price is expensive.
Summary of the invention
Technical problem to be solved by this invention is: provide in a kind of increasing unit interval dust, blowing oxygen quantity, and can alleviate the top rifle that application steel that the anti-material in the vacuum tank is corroded are produced.
Solve above-described technical problem, the technical scheme that the present invention takes is:
The present invention is a kind of top rifle that is applied to steel production, comprise Lavalle rifle head, Lavalle rifle head central tube, Gas Pipe, marine riser, outer tube, oxygen hose, flame detector installing hole, spacer assembly, rifle body extension adjustment device, suspension apparatus I, cooling water outlet tube, the cooling water inlet pipe, burning oxygen inlet pipe, combustion gas inlet pipe, nitrogen inlet pipe, suspension apparatus II, center oxygen inlet pipe, the described Lavalle rifle head that is applied to the top rifle of steel production is set to the TU2 oxygenless copper material, increases the durionise layer on the inner surface of Lavalle rifle head central tube.
The angle of the jet angle of described Lavalle rifle head is set to: the structure of 13＜jet angle＜15 degree.
The thickness of described durionise layer is set to the structure between 0.3～0.5mm.
The best angle of the jet angle of described Lavalle rifle head is set to 14 ± 0.05 degree.
Described outer tube adopts TU2 oxygen-free copper pipe material.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
1) Lavalle rifle head centre bore inner surface increases wearing layer, thereby prolongs the service life of rifle head;
2) can strengthen in the unit interval dust, blowing oxygen quantity, shorten dust, oxygen blow duration;
3) change of Lavalle rifle head spray-hole angle can alleviate the anti-material in the vacuum tank is corroded;
4) improve the external pipe of rifle, improve the machining accuracy of the external pipe of rifle, reduce gun barrel and leak;
5) under the prerequisite that satisfies electrical sheet and other high-quality steel grade manufacturing technique requirents, can realize top rifle production domesticization manufacturing, thereby reduce the manufacturing cost of top rifle.
Description of drawings
Make briefly bright to each accompanying drawing of this specification expressed content and the mark among the figure below:
Fig. 1 is the structural representation that is applied to the top rifle of steel production of the present invention;
Fig. 2 is the local structure for amplifying schematic diagram of the described top of Fig. 1 rifle;
Fig. 3 is the A-A cross-sectional view of the described top of Fig. 1 rifle;
Mark among the figure: 1, Lavalle rifle head; 2, Lavalle rifle head central tube; 3, Gas Pipe; 4, marine riser; 5, outer tube; 6, oxygen hose; 7, flame detector installing hole; 8, spacer assembly; 9, rifle body extension adjustment device; 10, suspension apparatus I; 11, cooling water outlet tube; 12, cooling water inlet pipe; 13, burning oxygen inlet pipe; 14, combustion gas inlet pipe; 15, nitrogen inlet pipe; 16, suspension apparatus II; 17, center oxygen inlet pipe; 18, jet angle; 19, durionise layer.
The specific embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are described in further detail embodiment:
Shown in accompanying drawing 1-3, the present invention comprises Lavalle rifle head 1 for a kind of top rifle that is applied to steel production, Lavalle rifle head central tube 2, Gas Pipe 3, marine riser 4, outer tube 5, oxygen hose 6, flame detector installing hole 7, spacer assembly 8, rifle body extension adjustment device 9, suspension apparatus I 10, cooling water outlet tube 11, cooling water inlet pipe 12, burning oxygen inlet pipe 13, combustion gas inlet pipe 14, nitrogen inlet pipe 15, suspension apparatus II 16, center oxygen inlet pipe 17, the described Lavalle rifle head 1 that is applied to the top rifle of steel production is set to the TU2 oxygenless copper material, and (oxygen of TU2 oxygenless copper material and impurity content are extremely low, the purity height, thermal conductivity is fabulous, and ductility is good, and air penetrability is low; Processing characteristics and weldability are all good), increase durionise layer 19 (electroplating hard chromium process maturation, wearability good) on the inner surface of described Lavalle rifle head central tube 2.
The angle of the jet angle 18 of described Lavalle rifle head 1 is set to: the structure of 13＜jet angle＜15 degree.
It is structure between 0.3～0.5mm that the thickness of described durionise layer is set to.
The best angle of the jet angle 18 of described Lavalle rifle head 1 is 14 ± 0.05 degree.
Described outer tube 5 adopts TU2 oxygen-free copper pipe material.
In the present invention, rifle head 1 usefulness TU2 oxygen-free copper in described Lavalle forges and processes, and the inner surface of Lavalle rifle head central tube 2 adopts electroplating hard chromium process, and the thickness of coating is 0.3～0.5mm, thereby increase the wearability of Lavalle rifle head central tube 2, the service life of improving whole top rifle.
The jet angle of described Lavalle rifle head changes 14 ± 0.05 degree into, and the length of spray-hole changes 175mm into by former design 170mm, thereby alleviate oxygen blast the anti-material in the vacuum tank is corroded;
Simultaneously, Lavalle pore throat mouth changes φ 25mm into by former design φ 24mm, dusts in the unit interval and blowing oxygen quantity thereby can increase;
Outer tube directly adopts the TU2 oxygen-free copper pipe of φ 267 * 5mm, reduces weld seam, guarantees rifle body cylindricity, linearity, reduces the wearing and tearing of rifle body, the sealing at muzzle place when improving the lifting of rifle body and under the vacuum tank.
Adopt technical scheme of the present invention, can obtain following beneficial effect:
1) Lavalle rifle head centre bore inner surface increases wearing layer, thereby prolongs the service life of rifle head;
2) can strengthen in the unit interval dust, blowing oxygen quantity, shorten dust, oxygen blow duration;
3) change of Lavalle rifle head spray-hole angle can alleviate the anti-material in the vacuum tank is corroded;
4) improve the external pipe of rifle, improve the machining accuracy of the external pipe of rifle, reduce gun barrel and leak;
5) under the prerequisite that satisfies electrical sheet and other high-quality steel grade manufacturing technique requirents, can realize top rifle production domesticization manufacturing, thereby reduce the manufacturing cost of top rifle.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously the concrete realization of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technical scheme to carry out; or design of the present invention and technical scheme are directly applied to other occasions without improving, all in protection scope of the present invention.
Claims (5)
1. one kind is applied to the top rifle that steel are produced, comprise Lavalle rifle head (1), Lavalle rifle head central tube (2), Gas Pipe (3), marine riser (4), outer tube (5), oxygen hose (6), flame detector installing hole (7), spacer assembly (8), rifle body extension adjustment device (9), suspension apparatus I (10), cooling water outlet tube (11), cooling water inlet pipe (12), burning oxygen inlet pipe (13), combustion gas inlet pipe (14), nitrogen inlet pipe (15), suspension apparatus II (16), center oxygen inlet pipe (17) is characterized in that: the described Lavalle rifle head (1) that is applied to the top rifle of steel production is set to the TU2 oxygenless copper material, increases durionise layer (19) on the inner surface of described Lavalle rifle head central tube (2).
2. the top rifle that is applied to steel production according to claim 1, it is characterized in that: the angle of the jet angle (18) of described Lavalle rifle head (1) is set to: the structure of 13＜jet angle＜15 degree.
3. according to claim 1 and 2ly be applied to the top rifle that steel are produced, it is characterized in that: it is structure between 0.3～0.5mm that the thickness of described durionise layer is set to.
4. the top rifle that is applied to electrical sheet production according to claim 3 is characterized in that: the best angle of the jet angle (18) of described Lavalle rifle head (1) is 14 ± 0.05 degree.
5. the top rifle that is applied to steel production according to claim 4 is characterized in that: described outer tube (5) adopts TU2 oxygen-free copper pipe material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000083 CN102022917A (en) | 2011-01-04 | 2011-01-04 | Top gun applied to steel production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110000083 CN102022917A (en) | 2011-01-04 | 2011-01-04 | Top gun applied to steel production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102022917A true CN102022917A (en) | 2011-04-20 |
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|---|---|---|---|
| CN 201110000083 Pending CN102022917A (en) | 2011-01-04 | 2011-01-04 | Top gun applied to steel production |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145717A (en) * | 1983-02-04 | 1984-08-21 | ユジンヌ・アシエ | Oxygen jetting nozzle for jetting stable supersonic speed stream for decarbonizing cast iron, particularly chrome castiron |
| JP3410553B2 (en) * | 1994-07-27 | 2003-05-26 | 新日本製鐵株式会社 | Decarburization refining method of chromium-containing molten steel |
| CN201250250Y (en) * | 2008-08-14 | 2009-06-03 | 宝山钢铁股份有限公司 | Oxygen lance channel sealing device |
| CN201296766Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance for vacuum refining of liquid steel |
| CN201296765Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance head for vacuum refining of liquid steel |
| CN101649373A (en) * | 2008-08-14 | 2010-02-17 | 管序荣 | Multifunctional spray head of refining furnace |
| CN201949956U (en) * | 2011-01-04 | 2011-08-31 | 马鞍山钢铁股份有限公司 | Top lance applied to steel production |
-
2011
- 2011-01-04 CN CN 201110000083 patent/CN102022917A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59145717A (en) * | 1983-02-04 | 1984-08-21 | ユジンヌ・アシエ | Oxygen jetting nozzle for jetting stable supersonic speed stream for decarbonizing cast iron, particularly chrome castiron |
| JP3410553B2 (en) * | 1994-07-27 | 2003-05-26 | 新日本製鐵株式会社 | Decarburization refining method of chromium-containing molten steel |
| CN201250250Y (en) * | 2008-08-14 | 2009-06-03 | 宝山钢铁股份有限公司 | Oxygen lance channel sealing device |
| CN101649373A (en) * | 2008-08-14 | 2010-02-17 | 管序荣 | Multifunctional spray head of refining furnace |
| CN201296766Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance for vacuum refining of liquid steel |
| CN201296765Y (en) * | 2008-11-10 | 2009-08-26 | 王�华 | Multifunctional top lance head for vacuum refining of liquid steel |
| CN201949956U (en) * | 2011-01-04 | 2011-08-31 | 马鞍山钢铁股份有限公司 | Top lance applied to steel production |
Non-Patent Citations (1)
| Title |
|---|
| 《重型机械》 20101231 任彤等 RH多功能顶枪的研制与应用 第95-99页 1-5 , 第2010年S1期 * |
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Application publication date: 20110420 |