CN203569131U - Desulphurization spraying gun - Google Patents
Desulphurization spraying gun Download PDFInfo
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- CN203569131U CN203569131U CN201320550559.2U CN201320550559U CN203569131U CN 203569131 U CN203569131 U CN 203569131U CN 201320550559 U CN201320550559 U CN 201320550559U CN 203569131 U CN203569131 U CN 203569131U
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- winding
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- cooled tube
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Abstract
The utility model discloses a desulphurization spraying gun, which comprises a central spraying gun core, a refractory material and a spiral cooling water pipe, wherein one or more spraying branch pipes are arranged at the lower part of the central spraying gun core; the central spraying gun core and the one or more spraying branch pipes are wrapped by the refractory material; the one or more spraying branch pipes are communicated with the outside of the desulphurization spraying gun; the spiral cooling water pipe is arranged in the refractory material, and is spirally and uniformly wound around the central spraying gun core outside the central spraying gun core. The desulphurization spraying gun is simple in structure, and the service life of the desulphurization spraying gun can be effectively prolonged.
Description
Technical field
The utility model belongs to steel desulfurization preprocessing technical field, relates to a kind of desulphurization spray gun.
Background technology
At present, at steelworks, by molten iron is carried out to pre-treatment, to improve clarity and the performance of steel, also promote the exploitation of new rolling shapes (for example, medium-thickness ship plate steel, anti-hydrogen induced cracking steel, IF steel etc.) simultaneously.
Desulphurization spray gun is the key equipment of hot metal pretreatment.Existing desulphurization spray gun serves as a contrast by metal gun core and fire proofed wood spray gun the complex body forming, and its effect is to utilize high pressure nitrogen to make molten iron carry out desulfurization among sweetening agent is imported to high temperature liquid iron.
The making processes of desulphurization spray gun is that general thick pouring fireproof material and the steel fiber of 200mm, is used for reducing the scaling loss of high temperature liquid iron to desulphurization spray gun like this on the circumferential surface ramming of metal gun core.The working conditions of desulphurization spray gun is that, under the immersion of the outside of desulphurization spray gun in 1300 ℃ of high temperature liquid irons, the central canal of desulphurization spray gun is under natural temperature, because the temperature difference causes greatly desulphurization spray gun work-ing life shorter (on average 500 minutes/left and right).
As a kind of intermittent type winding-up instrument, acutely usually there is the severe damaged forms of thermal stresses such as rifle lining peels off, longitudinal crack burns because of temperature variation in actual use in desulphurization spray gun, until desulphurization spray gun cannot normally be used.As can be seen here, how research suppresses the in use sharply variation of rifle temperature of desulphurization spray gun, significant work-ing life to improving desulphurization spray gun.In order to improve the work-ing life of desulphurization spray gun, according to the actual working conditions of current desulphurization spray gun, must change the resistance to elevated temperatures of desulphurization spray gun.
[prior art file]
(1) CN01251907.3 utility model patent;
(2) state of the art of document < < inverted T-shaped desulphurization spray gun and development trend > >
Utility model content
For this reason, the utility model provides a kind of desulphurization spray gun, to solve because the in use sharply variation of rifle temperature of desulphurization spray gun causes desulphurization spray gun short technical problem in work-ing life.
According to the utility model, provide a kind of desulphurization spray gun.This desulphurization spray gun comprises: central authorities' winding-up rifle core, is provided with one or more winding-up arms in the bottom of central authorities' winding-up rifle core; Refractory materials, parcel central authorities winding-up rifle core and described one or more winding-up arm, described one or more winding-up arms are communicated with the external world of desulphurization spray gun; Spiral water-cooled tube, is arranged in refractory materials, in the outer peripheral of central authorities winding-ups rifle core around central authorities' winding-up rifle core uniform winding spirally.
Described desulphurization spray gun also comprises cooling water intake and cooling water outlet.Cooling water intake and cooling water outlet are arranged on the top side water pipe of spiral water-cooled tube, are positioned at the outside of refractory materials.A water pipe in top side water pipe and the bottom side water pipe of cooling water intake and spiral water-cooled tube is connected.Another water pipe in top side water pipe and the bottom side water pipe of cooling water outlet and spiral water-cooled tube is connected.
Cooling water intake is connected with the bottom side water pipe of spiral water-cooled tube by middle water pipe, and cooling water outlet is directly connected with the top side water pipe of spiral water-cooled tube.
Middle water pipe is spaced a predetermined distance from central authorities winding-up rifle cores, and is arranged in abreast in the refractory materials in the internal space of spiral water-cooled tube or in the outside refractory materials of spiral water-cooled tube with central authorities winding-up rifle cores.
The direct bending of a water pipe in the top side water pipe of spiral water-cooled tube and bottom side water pipe extends up to the outside of refractory materials and as cooling water intake, another water pipe in top side water pipe and the bottom side water pipe of spiral water-cooled tube directly bending extends up to the outside of refractory materials and is used as cooling water outlet.
Central authorities' winding-up rifle core is from its underpart branch, to form described one or more winding-up arm.
The outlet of the each winding-up arm in described one or more winding-up arm is formed on the outside surface of refractory materials and is in communication with the outside.
The bottom side water pipe of spiral water-cooled tube separates predetermined distance with the each winding-up arm in described one or more winding-up arms.
Spiral water-cooled tube is around central authorities' winding-up rifle core and described one or more winding-up arms uniform winding spirally.
Gap in spiral water-cooled tube between adjacent two water pipes is greater than the size of the outlet of the each winding-up arm in described one or more winding-up arm.The outlet of each winding-up arm is arranged in the gap between bottom side water pipe and the water pipe adjacent with bottom side water pipe of spiral water-cooled tube.
According to the simple in structure of desulphurization spray gun of the present utility model and can effectively improve its work-ing life.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described, wherein:
Fig. 1 is the stereographic map according to desulphurization spray gun of the present utility model;
Fig. 2 is the skeleton view according to desulphurization spray gun of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As depicted in figs. 1 and 2, according to desulphurization spray gun of the present utility model, comprise: central authorities' winding-up rifle core 1, is provided with one or more winding-up arms 2 in the bottom of central authorities' winding-up rifle core 1; Refractory materials 3, parcel central authorities winding-up rifle core 1 and described one or more winding-up arm 2, described one or more winding-up arms 2 are in communication with the outside; Spiral water-cooled tube 4, is arranged in refractory materials 3, in the outer peripheral of central authorities winding-ups rifle core 1, around central authorities' winding-up rifle core 1 uniform winding spirally, central authorities' winding-up rifle core 1 is roughly medially arranged in the internal space of spiral water-cooled tube 4.
Described one or more winding-up arm 2 is communicated with the bottom of central authorities winding-ups rifle core 1, and sweetening agent is imported among the high temperature liquid iron of desulphurization spray gun outside so that molten iron carries out desulfurization at jet by central authorities rifle core 1 and described one or more winding-up arm 2 of high pressure nitrogen effect current downflow.Described one or more winding-up arm 2 can form with the jet bottom of rifle core 1 of central authorities.Alternatively, central authorities' winding-up rifle core 1 can be from its underpart branch, to form described one or more winding-up arm 2.
In addition, in described one or more winding-up arm 2, the outlet 21 of each winding-up arm 2 is formed on the outside surface of refractory materials 3 and is communicated with external world's (high temperature liquid iron) of desulphurization spray gun.For convenient, manufacture, preferably, in described one or more winding-up arms 2, the outlet 21 of each winding-up arm 2 forms at grade.In Fig. 1 and Fig. 2, show the situation of arranging symmetrically two such winding-up arms 2 in the bottom of central authorities' winding-up rifle core 1.
According to desulphurization spray gun of the present utility model, also comprise cooling water intake 5 and cooling water outlet 6.Cooling water intake 5 and cooling water outlet 6 are arranged on the top side water pipe 41 of spiral water-cooled tube 4, are positioned at the outside of refractory materials 3.In other words, cooling water intake 5 and cooling water outlet 6 are arranged as the top that approaches central authorities winding-ups rifle core 1, away from winding-up arm 2, but not approach the bottom in high temperature liquid iron that is immersed in of desulphurization spray gun.Like this, the water coolant of avoiding entering when the bottom of desulphurization spray gun is immersed in high temperature liquid iron in cooling water intake 5 is heated by high temperature liquid iron and weakens cooling performance.
In addition, a water pipe (41 or 42) in top side water pipe 41 and the bottom side water pipe 42 of cooling water intake 5 and spiral water-cooled tube 4 is connected, and another water pipe (42 or 41) in top side water pipe 41 and the bottom side water pipe 42 of cooling water outlet 6 and spiral water-cooled tube 4 is connected.In order to maximize cooling performance, cooling water intake 5 is connected with the bottom side water pipe 42 of spiral water-cooled tube 4 by middle water pipe 51, and cooling water outlet 6 is directly connected with the top side water pipe 41 of spiral water-cooled tube 4.Like this, water coolant enters from cooling water intake 5, in the middle of flowing through, water pipe 51 arrives the bottom side water pipe 42 of spiral water-cooled tube 4, then according to the winding direction of spiral water-cooled tube 4, in spiral water-cooled tube 4, flow clockwise or counterclockwise, arrive the top side water pipe 41 of spiral water-cooled tube 4, then through cooling water outlet 6, flow out.Middle water pipe 51 is spaced a predetermined distance from central winding-up rifle core 1, and be arranged in abreast in the refractory materials 3 in the internal space of spiral water-cooled tube 4 or in the outside refractory materials 3 of spiral water-cooled tube 4 with central authorities winding-ups rifle core 1, but middle water pipe 51 does not contact with the tube wall of spiral water-cooled tube 4, to guarantee cooling performance.
Alternatively, top side water pipe 41 can directly bend and extends up to the outside of refractory materials 3 and be connected with outside water-supply source (not shown) with a water pipe in bottom side water pipe 42, and top side water pipe 41 can directly bend and extends up to the outside of refractory materials 3 and be connected with outside water reservoir (not shown) with another water pipe in bottom side water pipe 42.Like this, the part pipeline that extends to refractory materials 3 outsides of a water pipe in top side water pipe 41 and bottom side water pipe 42 can directly be used as cooling water intake 5, the part pipeline that extends to refractory materials 3 outsides of another water pipe in top side water pipe 41 and bottom side water pipe 42 can directly be used as cooling water outlet 6, and can omit cooling water intake 5 and cooling water outlet 6.
In addition, the bottom side water pipe 42 of spiral water-cooled tube 4 can separate predetermined distance (for example, 5mm) with each winding-up arm 2 in described one or more winding-up arms 2, not disturb flowing of sweetening agent.Alternatively, spiral water-cooled tube 4 can be around central authorities jet rifle core 1 and described one or more winding-up arms 2 uniform winding spirally.In this case, in spiral water-cooled tube 4, the gap (seeing the label T of Fig. 2) between adjacent two water pipes is greater than the size of the outlet 21 of each winding-up arm 2 in described one or more winding-up arm 2.Like this, the outlet 21 of each winding-up arm 2 is arranged in the gap between bottom side water pipe 42 and the water pipe adjacent with bottom side water pipe 42 of spiral water-cooled tube 4, not disturb flowing of sweetening agent.
In addition, for convenient, manufacture, preferably, central authorities' winding-up rifle core 1, winding-up arm 2, spiral water-cooled tube 4, cooling water intake 5, cooling water outlet 6, middle water pipe 51 be all formed as rounded section.In order to make desulphurization spray gun attractive in appearance, refractory materials 3 is wrapped in the outside of central authorities' winding-up rifle core 1 and described one or more winding-up arms 2 according to cylinder form.Consider according to desulphurization spray gun of the present utility model and be applied to high temperature liquid iron environment, preferably, central authorities' winding-up rifle core 1, winding-up arm 2, spiral water-cooled tube 4, cooling water intake 5, cooling water outlet 6, middle water pipe 51 are ferrous metal pipe, with heat-resisting and not yielding.Certainly, the utility model is not limited to this.Can and select other heat-stable materials to form central authorities' winding-up rifle core 1, winding-up arm 2, refractory materials 3, spiral water-cooled tube 4, cooling water intake 5, cooling water outlet 6, middle water pipe 51 according to arbitrary shape.
Compared with prior art, according to the desulphurization spray gun of structure described above of the present utility model, in winding-up process, being evenly arranged of spiral water-cooled tube 4 reduced in the thermograde in desulphurization spray gun cross section in the radial direction, the temperature variation of the refractory materials 3 of desulphurization spray gun is comparatively mild, the temperature variation of desulphurization spray gun enters " quasi-steady state " relatively, has reduced thus thermal stresses, thereby has greatly improved the actual service life of desulphurization spray gun.
The utility model is not limited to this, but can carry out various modification.
Claims (8)
1. a desulphurization spray gun, is characterized in that, described desulphurization spray gun comprises:
Central authorities' winding-up rifle core, is provided with one or more winding-up arms in the bottom of central authorities' winding-up rifle core;
Refractory materials, parcel central authorities winding-up rifle core and described one or more winding-up arm, described one or more winding-up arms are communicated with the external world of desulphurization spray gun;
Spiral water-cooled tube, is arranged in refractory materials, in the outer peripheral of central authorities winding-ups rifle core around central authorities' winding-up rifle core and described one or more winding-up arms uniform winding spirally.
2. desulphurization spray gun according to claim 1, is characterized in that, described desulphurization spray gun also comprises cooling water intake and cooling water outlet,
Cooling water intake and cooling water outlet are arranged on the top side water pipe of spiral water-cooled tube, are positioned at the outside of refractory materials,
A water pipe in top side water pipe and the bottom side water pipe of cooling water intake and spiral water-cooled tube is connected,
Another water pipe in top side water pipe and the bottom side water pipe of cooling water outlet and spiral water-cooled tube is connected.
3. desulphurization spray gun according to claim 2, is characterized in that,
Cooling water intake is connected with the bottom side water pipe of spiral water-cooled tube by middle water pipe,
Cooling water outlet is directly connected with the top side water pipe of spiral water-cooled tube.
4. desulphurization spray gun according to claim 3, is characterized in that,
Middle water pipe is spaced a predetermined distance from central authorities winding-up rifle cores, and is arranged in abreast in the refractory materials in the internal space of spiral water-cooled tube or in the outside refractory materials of spiral water-cooled tube with central authorities winding-up rifle cores.
5. desulphurization spray gun according to claim 1, is characterized in that,
The direct bending of a water pipe in the top side water pipe of spiral water-cooled tube and bottom side water pipe extends up to the outside of refractory materials and as cooling water intake, another water pipe in top side water pipe and the bottom side water pipe of spiral water-cooled tube directly bending extends up to the outside of refractory materials and is used as cooling water outlet.
6. desulphurization spray gun according to claim 1, is characterized in that,
Central authorities' winding-up rifle core is from its underpart branch, to form described one or more winding-up arm.
7. desulphurization spray gun according to claim 1, is characterized in that,
The outlet of the each winding-up arm in described one or more winding-up arm is formed on the outside surface of refractory materials and is in communication with the outside.
8. desulphurization spray gun according to claim 1, is characterized in that, the gap in spiral water-cooled tube between adjacent two water pipes is greater than the size of the outlet of the each winding-up arm in described one or more winding-up arm,
The outlet of each winding-up arm is arranged in the gap between bottom side water pipe and the water pipe adjacent with bottom side water pipe of spiral water-cooled tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550559.2U CN203569131U (en) | 2013-09-05 | 2013-09-05 | Desulphurization spraying gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550559.2U CN203569131U (en) | 2013-09-05 | 2013-09-05 | Desulphurization spraying gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203569131U true CN203569131U (en) | 2014-04-30 |
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ID=50536874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550559.2U Expired - Fee Related CN203569131U (en) | 2013-09-05 | 2013-09-05 | Desulphurization spraying gun |
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| Country | Link |
|---|---|
| CN (1) | CN203569131U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022686A (en) * | 2017-05-19 | 2017-08-08 | 中国恩菲工程技术有限公司 | BOTTOM OXYGEN gun platform |
| CN112831626A (en) * | 2021-03-30 | 2021-05-25 | 马鞍山钢铁股份有限公司 | Molten iron pretreatment feeding system |
-
2013
- 2013-09-05 CN CN201320550559.2U patent/CN203569131U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107022686A (en) * | 2017-05-19 | 2017-08-08 | 中国恩菲工程技术有限公司 | BOTTOM OXYGEN gun platform |
| CN112831626A (en) * | 2021-03-30 | 2021-05-25 | 马鞍山钢铁股份有限公司 | Molten iron pretreatment feeding system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20180905 |
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| CF01 | Termination of patent right due to non-payment of annual fee |