CN202968620U - Double-hole rotary fire-resistant spray gun - Google Patents
Double-hole rotary fire-resistant spray gun Download PDFInfo
- Publication number
- CN202968620U CN202968620U CN2012206991790U CN201220699179U CN202968620U CN 202968620 U CN202968620 U CN 202968620U CN 2012206991790 U CN2012206991790 U CN 2012206991790U CN 201220699179 U CN201220699179 U CN 201220699179U CN 202968620 U CN202968620 U CN 202968620U
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- gun body
- double
- protective tube
- spray gun
- refractory
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The utility model belongs to the field of liquid iron desulfurization equipment and particularly relates to a double-hole rotary fire-resistant spray gun. The double-hole rotary fire-resistant spray gun comprises a gun body, wherein the gun body comprises a center spray pipe (1), a protective pipe (2), a refractory matter layer (4), a rotating mechanism (7), and a flange plate (3) which is fixedly connected with the center spray pipe (1), wherein the center spray pipe (1) is sleeved in the protective pipe (1); the refractory matter layer (4) is arranged out of the protective pipe (2); a skeleton (5) is fixedly arranged inside the refractory matter layer (4) and outside the protective pipe (2); two jet nozzles (6) are arranged at the lower end of the center spray pipe (1); the output power of the rotating mechanism (7) is transmitted to the flange plate (3); and the bottom end of the gun body is of a semispherical structure. The double-hole rotary fire-resistant spray gun is simple in structure, good in mixing effect of a desulfurizing agent and liquid iron, and low in sputtering strength.
Description
Technical field
The utility model belongs to the desulfurizing iron apparatus field, relates in particular to the rotary refractory lance of a kind of diplopore.
Background technology
Injection metallurgy typically refers to the fixed blowing process in industrial widespread use: spray gun is from furnace bottom, and furnace wall and furnace roof all remain static when jetting to the molten bath.When spray gun was upwards jetted from furnace bottom, fixed blowing process was unique method, and namely spray gun need be fixed in the flame retardant coating of furnace bottom.Insert winding-up when spray gun from the furnace wall, generally also remain static.In identical water model test, compare with fixing spray gun, find that rotary spray gun diminishes bubble, ascent rate is slack-off, and ascent rate is slack-off to diminish with bubble, and the intensity of foaming is relevant with the track that floats.Mass transfer coefficient CO between gas-liquid
2With the NaOH absorption measurement, find the uptake rate of rotary spray gun than fixedly spray gun is high, the change of uptake factor is relevant with the interfacial area of bubble and liquid phase.At present, find that not yet rotation class spray gun is applied to industrial practice.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art and provides a kind of simple in structure, sweetening agent and molten iron good mixing effect, the rotary refractory lance of the diplopore that Spitting intensity is low.
For achieving the above object, the utility model is to realize like this.
The rotary refractory lance of diplopore comprises gun body, it is characterized in that, described gun body comprises core jet pipe, protective tube, refractory masses, rotating mechanism and the ring flange that is fixedly connected with core jet pipe; Described core jet pipe is set in protective tube; Described refractory materials is placed on outside protective tube; In described refractory masses, be fixed with skeleton outside protective tube; The lower end of described core jet pipe is provided with two nozzles; The outputting power of described rotating mechanism transfers to ring flange.
As a kind of preferred version, the bottom of gun body described in the utility model is hemispherical dome structure.
As another kind of preferred version, be fixed with the Stirring blade on gun body described in the utility model.
Further, Stirring blade described in the utility model can be selected four, and is distributed in the gun body outer wall.
Further, the utility model is fixed with thermofin at the outer wall of described protective tube.
The utility model carries out industrial test in 65 t ladles data show, it can improve 25%～35% with desulfurization degree, reduce metal splash loss, and cooling reduces 50%.The utility model has improved the mix and blend of molten iron and sweetening agent, has changed the track of carrier gas stream floating, and bubble diminishes, and ascent rate is slack-off, and sweetening agent mixes better with molten iron, has improved desulfurization degree and Spitting intensity is reduced.The thermofin that the utility model is fixed with at the outer wall of protective tube can improve the stress distribution in gun body, has avoided the generation of refractory masses cracking phenomena.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is the utility model one-piece construction schematic diagram.
In figure: 1, core jet pipe; 2, protective tube; 3, ring flange; 4, refractory masses; 5, skeleton; 6, nozzle; 7, rotating mechanism; 8, Stirring blade; 9, thermofin.
Embodiment
As shown in the figure, the rotary refractory lance of diplopore, it comprises gun body; Described gun body comprises core jet pipe 1, protective tube 2, refractory masses 4, rotating mechanism 7 and the ring flange 3 that is fixedly connected with core jet pipe 1; Described core jet pipe 1 is set in protective tube 2; Described refractory masses 4 is placed in outside protective tube 2; In described refractory masses 4, be fixed with skeleton 5 outside protective tube 2; The lower end of described core jet pipe 1 is provided with two nozzles 6; The outputting power of described rotating mechanism 7 transfers to ring flange 3.
Be the structure of protection gun body bottom, extend the work-ing life of spray gun, the bottom of gun body described in the utility model can be designed to semisphere.
Can be fixed with Stirring blade 8 on gun body described in the utility model, described Stirring blade 8 is four, and is distributed in the gun body outer wall.
The thermofin 9 that the utility model is fixed with at the outer wall of protective tube can improve the stress distribution in gun body, has avoided the generation of refractory masses cracking phenomena.
The above is only preferred embodiment of the present utility model, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (5)
1. the rotary refractory lance of diplopore, comprise gun body, it is characterized in that, described gun body comprises core jet pipe (1), protective tube (2), refractory masses (4), rotating mechanism (7) and the ring flange (3) that is fixedly connected with core jet pipe (1); Described core jet pipe (1) is set in protective tube (2); Described refractory masses (4) is placed in outside protective tube (2); In described refractory masses (4), be fixed with skeleton (5) outside protective tube (2); The lower end of described core jet pipe (1) is provided with two nozzles (6); The outputting power of described rotating mechanism (7) transfers to ring flange (3).
2. the rotary refractory lance of diplopore according to claim 1, it is characterized in that: the bottom of described gun body is hemispherical dome structure.
3. the rotary refractory lance of diplopore according to claim 2, is characterized in that: be fixed with Stirring blade (8) on described gun body.
4. the rotary refractory lance of diplopore according to claim 3, it is characterized in that: described Stirring blade (8) is four, and is distributed in the gun body outer wall.
5. the rotary refractory lance of diplopore according to claim 4, it is characterized in that: the outer wall at described protective tube (2) is fixed with thermofin (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206991790U CN202968620U (en) | 2012-12-18 | 2012-12-18 | Double-hole rotary fire-resistant spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012206991790U CN202968620U (en) | 2012-12-18 | 2012-12-18 | Double-hole rotary fire-resistant spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202968620U true CN202968620U (en) | 2013-06-05 |
Family
ID=48509720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012206991790U Expired - Lifetime CN202968620U (en) | 2012-12-18 | 2012-12-18 | Double-hole rotary fire-resistant spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202968620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676344A (en) * | 2020-07-20 | 2020-09-18 | 攀钢集团攀枝花钢钒有限公司 | Rotary spray gun for molten iron desulphurization |
| CN112458238A (en) * | 2020-10-19 | 2021-03-09 | 宝钢工程技术集团有限公司 | Novel AOD spiral side gun |
-
2012
- 2012-12-18 CN CN2012206991790U patent/CN202968620U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111676344A (en) * | 2020-07-20 | 2020-09-18 | 攀钢集团攀枝花钢钒有限公司 | Rotary spray gun for molten iron desulphurization |
| CN112458238A (en) * | 2020-10-19 | 2021-03-09 | 宝钢工程技术集团有限公司 | Novel AOD spiral side gun |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 115100 Liaoning Yingkou City, Dashiqiao City, Dashiqiao City Development Zone Yingkou Dong Bang environmental protection Polytron Technologies Inc Patentee after: Yingkou Dong Bang environmental protection Polytron Technologies Inc. Address before: Dashiqiao City, Liaoning province 115100 Yingkou City Economic Development Zone Yingkou DONGBANG metallurgical refractories Co Ltd Patentee before: YINGKOU TOHO METALLURGICAL EQUIPMENT REFRACTORIES Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |