CN202576472U - Air hole type anti-sticking oxygen lance - Google Patents
Air hole type anti-sticking oxygen lance Download PDFInfo
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- CN202576472U CN202576472U CN 201220189631 CN201220189631U CN202576472U CN 202576472 U CN202576472 U CN 202576472U CN 201220189631 CN201220189631 CN 201220189631 CN 201220189631 U CN201220189631 U CN 201220189631U CN 202576472 U CN202576472 U CN 202576472U
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- air hole
- oxygen
- rifle
- oxygen lance
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Abstract
The utility model discloses an air hole type anti-sticking oxygen lance used for steel making, and belongs to the field of oxygen lances. The air hole type anti-sticking oxygen lance comprises an oxygen lance nozzle, an outer tube, a middle tube, an inner tube and an air hole tube, wherein an air hole is arranged on a tube wall of the air hole tube, the air hole tube is located at the outer layer of the outer tube, the air hole is in a round shape, or an oval shape or a square shape, and the air hole tube is connected with an air delivery system, an oxygen delivery system or a nitrogen delivery system. According to the air hole type anti-sticking oxygen lance, air is continuously blew into the inside of the air hole tube, the air is ejected outwards through the air hole, residual iron attached on an oxygen lance body is quickly separated from the oxygen lance body under the effect of an air flow ejected through the air hole, so that the oxygen lance is effectively prevented from sticking; not only effects on normal production of the steel making caused by sticking oxygen lance are avoided, but also production safety is avoided; design is reasonable, manufacturing is easy, and effects are remarkable.
Description
Technical field
The utility model relates to a kind of oxygen rifle of making steel usefulness, more particularly, relates to a kind of oxygen rifle that prevents sticking rifle with stoma tube structure.
Background technology
The oxygen rifle is the key equipment of steel-making, and the design of oxygen rifle, manufacturing and service condition are particularly important to improving steel quality, output and production cost.The oxygen rifle can be blown into metal pool top in the converter with hypersonic velocity with the high pressure high-purity oxygen, and has the tubular equipment of high pressure water cooling protection system, is spray gun again.It is the visual plant of top-blown oxygen steelmaking, and in converting process, the oxygen rifle not only will bear the thermal radiation of the high-temperature zone of about 2500 ℃ of fire points, and also will bear the fierceness of steel and slag washes away, and working conditions is very abominable.Therefore the oxygen rifle will have firm metal construction and strong water-cooling system, to guarantee that it can tolerate high temperature, antiscour corrodes and the opposing vibration.The oxygen rifle is applied to the oxygen blast of openhearth steelmaking furnace roof at first, nineteen fifty-two Linz-Donawitz process appearance, and the oxygen rifle becomes its key equipment.After this, the range of application of oxygen rifle expands fields such as electric arc furnace and ladle refining furnace again to; Function also develops into slag making pulvis, the composite oxygen rifle of burning pulvis and shunting or the double-current method multilayer oxygen rifle with secondary combustion function of jetting of holding concurrently from single winding-up oxygen.
At present, the phenomenon of the sticking rifle of frequent presence of oxygen rifle when using the oxygen rifle to make steel, the oxygen rifle is in converting process; The body of a gun can adhere to slag inevitably, and the slag difficult drop-off needs to adopt manual removal to handle; Working strength of workers is very big, operating environment is poor; Need use the cutting of acetylene torch rifle when serious, have slightly to be easy to because of carelessness to damage oxygen gun body, cutting Lou, the accident of oxygen rifle also happens occasionally.When rifle is glued in processing, need to stop production, so just reduced the operating rate of converter steelmaking, influenced output of steel.In process of production, sticking rifle has caused mental burden for the converter workman, impels behaviour's rifle workman to hang and blows, and has therefore promptly prolonged oxygen blow duration, has also influenced technological effects such as intensification, carbon drop, change slag.
Chinese patent Granted publication CN 201224738Y, Granted publication day is on April 22nd, 2009, invention and created name is: large-cone oxygen blowing lance special for steelmaking; This application case relates to a kind of converter steelmaking and uses oxygen lance with conical; Being particularly related to a kind of large-cone oxygen blowing lance special for steelmaking, is to be made up of: oxygen lance blow head, outer tube, middle tube, interior pipe, outer adapter bonnet, the outer straight tube of oxygen rifle, and large-cone oxygen blowing lance special for steelmaking adopts three layers of sleeve structure; The outer tube of oxygen-blowing gun is unitary tapered pipe below outer adapter bonnet; Tapering is 1 degree ~ 5 degree, and upper coarse and lower fine, length is 4 ~ 9 meters; Middle tube and interior pipe are straight tubes.Its weak point is: when only adhering to the big quantity of slag on the oxygen rifle, just can under the taper outer tube, slip out by the gravity of slag body self, when adhere on the oxygen rifle the quantity of slag hour; Slag body self gravitation is not enough to overcome the bounding force between itself and the oxygen rifle, and is difficult to glide, and still can be bonded on the oxygen rifle; Accumulation along with the time; Oxygen rifle surface can be not smoothly, and slag is known from experience long-pending more thick more, and more serious sticking rifle still can take place.
Summary of the invention
The technical problem that utility model will solve
The utility model has overcome the technical deficiency that the oxygen rifle is prone to glue rifle in the prior art, has offered a kind of antiseized rifle oxygen rifle with pore formula of stoma tube structure.
Technical scheme
For achieving the above object, the technical scheme that the utility model provides is:
The antiseized rifle oxygen rifle of a kind of pore formula of the utility model comprises oxygen lance blow head, outer tube, intervalve and interior pipe, also comprises stoma tube, and the tube wall of this stoma tube is provided with pore, and described stoma tube is positioned at the skin of outer tube.When the steel-making blowing, the inner gas that constantly feeds of stoma tube, gas constantly outwards sprays from pore, and under the effect of the air-flow that in pore, ejects, the slag iron that is attached on the oxygen gun body can promptly break away from the rifle body;
A nearlyer step ground, described pore to be shaped as circle oval or square.The size of pore, shape and distribute can be according to the demand of oxygen rifle different sites and difference to some extent.
A nearlyer step ground, described stoma tube is connected with air conveying system, oxygen delivery system or nitrogen delivery system.Can select suitable gas according to concrete smelting condition.
Beneficial effect
The technical scheme that adopts the utility model to provide is compared with existing known technology, has following beneficial effect:
(1) the antiseized rifle oxygen rifle of a kind of pore formula of the utility model, the skin of outer tube is provided with stoma tube, and under the effect of sparging gases, slag iron can promptly break away from the rifle body in pore, effectively prevents the generation of sticking rifle;
(2) the antiseized rifle oxygen rifle of a kind of pore formula of the utility model, pore to be shaped as circle oval or square, the size of pore, shape and distribution density can be carried out choose reasonable according to the dry slag situation of oxygen gun body different sites;
(3) the antiseized rifle oxygen rifle of a kind of pore formula of the utility model can feed pressurized air in the stoma tube, can prevent to generate a large amount of foamy slags, and cost is lower.
Description of drawings
Fig. 1 is the structural representation of antiseized rifle oxygen rifle of a kind of pore formula of the utility model.
Label declaration in the synoptic diagram: 1-oxygen lance blow head; 2-stoma tube; 3-outer tube; 4-intervalve; 5-interior pipe; 6-pore.
Embodiment
For further understanding the content of the utility model, the utility model is described in detail in conjunction with accompanying drawing.
In conjunction with Fig. 1, the antiseized rifle oxygen rifle of a kind of pore formula of the utility model is made up of oxygen lance blow head 1, stoma tube 2, outer tube 3, intervalve 4 and interior pipe 5.
In the antiseized rifle oxygen rifle of a kind of pore formula of the utility model, the tube wall of described stoma tube 2 is provided with pore 6, described pore 6 to be shaped as circle oval or square; Described stoma tube 2 is positioned at the skin of outer tube 3, and described stoma tube 2 is connected with air conveying system, oxygen delivery system or nitrogen delivery system.
Below in conjunction with embodiment the utility model is done further to describe.
In the antiseized rifle oxygen rifle of a kind of pore formula of present embodiment, be made up of oxygen lance blow head 1, stoma tube 2, outer tube 3, intervalve 4 and interior pipe 5, the tube wall of described stoma tube 2 is provided with pore 6, described pore 6 be shaped as circle; Described stoma tube 2 is positioned at the skin of outer tube 3, and described stoma tube 2 is connected with air conveying system, and the gas that is fed is pressurized air, can prevent to generate a large amount of foamy slags, and cost is lower.
In the antiseized rifle oxygen rifle of a kind of pore formula of present embodiment, be made up of oxygen lance blow head 1, stoma tube 2, outer tube 3, intervalve 4 and interior pipe 5, the tube wall of described stoma tube 2 is provided with pore 6, described pore 6 be shaped as ellipse; Described stoma tube 2 is positioned at the skin of outer tube 3, and described stoma tube 2 is connected with oxygen delivery system, and the gas that is fed is oxygen.
In the antiseized rifle oxygen rifle of a kind of pore formula of present embodiment, be made up of oxygen lance blow head 1, stoma tube 2, outer tube 3, intervalve 4 and interior pipe 5, the tube wall of described stoma tube 2 is provided with pore 6, and being shaped as of described pore 6 is square; Described stoma tube 2 is positioned at the skin of outer tube 3, and described stoma tube 2 is connected with the nitrogen delivery system, and the gas that is fed is nitrogen.
Among the embodiment 1 ~ 3, when bessemerizing, feed gas in the stoma tube 2; Gas outwards sprays from pore 6 and goes out, and is attached under the effect of the slag iron jet-stream wind in pore on the oxygen gun body, hightails the rifle body; Fall in the converter, thereby reached the effect that prevents sticking rifle.
Below schematically the utility model and embodiment thereof are described, this description does not have restricted, and shown in the accompanying drawing also is one of embodiment of the utility model, and practical structure is not limited thereto.So,, under the situation that does not break away from the utility model creation aim,, all should belong to the protection domain of the utility model without creationary frame mode similar and the embodiment of designing with this technical scheme if those of ordinary skill in the art is enlightened by it.
Claims (3)
1. the antiseized rifle oxygen rifle of a pore formula; Comprise oxygen lance blow head (1), outer tube (3), intervalve (4) and interior pipe (5); It is characterized in that: also comprise stoma tube (2); The tube wall of this stoma tube (2) is provided with pore (6), and described stoma tube (2) is positioned at the skin of outer tube (3).
2. the antiseized rifle oxygen rifle of a kind of pore formula according to claim 1 is characterized in that: described pore (6) to be shaped as circle oval or square.
3. the antiseized rifle oxygen rifle of a kind of pore formula according to claim 1 and 2 is characterized in that: described stoma tube (2) is connected with air conveying system, oxygen delivery system or nitrogen delivery system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189631 CN202576472U (en) | 2012-04-29 | 2012-04-29 | Air hole type anti-sticking oxygen lance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220189631 CN202576472U (en) | 2012-04-29 | 2012-04-29 | Air hole type anti-sticking oxygen lance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202576472U true CN202576472U (en) | 2012-12-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220189631 Expired - Fee Related CN202576472U (en) | 2012-04-29 | 2012-04-29 | Air hole type anti-sticking oxygen lance |
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| Country | Link |
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| CN (1) | CN202576472U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188338A (en) * | 2021-05-18 | 2021-07-30 | 云南驰宏锌锗股份有限公司 | Metallurgical stove gas safety, spray gun interlocking control protection system |
| CN113337650A (en) * | 2021-06-18 | 2021-09-03 | 唐山市嘉恒实业有限公司 | Metallurgical slag treatment equipment and method |
-
2012
- 2012-04-29 CN CN 201220189631 patent/CN202576472U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113188338A (en) * | 2021-05-18 | 2021-07-30 | 云南驰宏锌锗股份有限公司 | Metallurgical stove gas safety, spray gun interlocking control protection system |
| CN113337650A (en) * | 2021-06-18 | 2021-09-03 | 唐山市嘉恒实业有限公司 | Metallurgical slag treatment equipment and method |
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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: 20121205 Termination date: 20130429 |