CN101440418A - Desulfuring spray gun - Google Patents
Desulfuring spray gun Download PDFInfo
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- CN101440418A CN101440418A CNA200710158391XA CN200710158391A CN101440418A CN 101440418 A CN101440418 A CN 101440418A CN A200710158391X A CNA200710158391X A CN A200710158391XA CN 200710158391 A CN200710158391 A CN 200710158391A CN 101440418 A CN101440418 A CN 101440418A
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- pipeline
- spray gun
- desulphurization
- desulphurization spray
- gun according
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Abstract
The invention belongs to the field of hot metal desulphurization treatment devices, and in particular relates to a desulphurization spray gun. The spray gun comprises a gun body (2), a pipeline (1), a refractory material layer (4), a frame (3), a support pipe bundle (5), wherein the pipeline (1) is arranged in the gun body (2); the refractory material layer (4) is positioned outside the pipeline (1); the frame (3) is arranged in the refractory material layer and is fixedly connected with the pipeline (1); and the support pipe bundle (5) is fixedly connected with the outside of the pipeline (1). Raw material by weight percentage content of the refractory material layer (4) comprises the following components: 10 to 40 percent of mullite, 10 to 35 percent of corundum, 15 to 28 percent of three-line stone, 8 to 12 percent of micropowder, 3 to 12 percent of refractory cement and 1.5 to 3 percent of steel fiber. The spray gun has the advantages of high desulfurizer utilization ratio, low operation cost, good desulphurization effect and capability of leading granular magnesium into hot metal and obtaining high desulphurization index.
Description
Technical field
The invention belongs to desulfurizing iron treatment unit field, relate in particular to a kind of desulphurization spray gun.
Background technology
At present, before the steel-making, generally all will carry out the desulfurization pre-treatment to molten iron in smelting industry, the used major equipment of above-mentioned technology is exactly a desulphurization spray gun.Existing molten iron desulfuring spray gun is not owing to take into full account the physical difference of pipeline and refractory masses in skeleton and the design of rifle body, spray gun when colding and heat succeed each other the state use, phenomenon such as refractory masses easily causes cracking, come off.In addition, because the selection of refractory materials is unreasonable, make equipment when actual motion, it is low to exist sorbent utilization, and the material consumption is high, and refractory masses lost efficacy, spray gun body heaviness, characteristics such as desulphurization cost height.Owing to there is above-mentioned shortcoming, cause successfully carrying out secondary desulfurization, especially in large-scale (being equal to or greater than 160t) hot metal ladle, its structural defective is more obvious.
Summary of the invention
The present invention is intended to overcome the deficiencies in the prior art part and a kind of sorbent utilization height is provided, and running cost is cheap, and sweetening effectiveness is good, the desulphurization spray gun of rifle body long service life.
For achieving the above object, the present invention is achieved in that
Desulphurization spray gun, it comprises: gun body, pipeline, refractory masses, skeleton, support tube bank; Described pipeline is assigned in the gun body; Described refractory masses is positioned at the outside of pipeline; Described skeleton places in the refractory masses and with pipeline and fixedly connects; The described support tube bank and the pipeline outside fixedly connect.
As a kind of preferred version, support tube bank of the present invention is three; The line of its cross section is equilateral triangle.
As another kind of preferred version, the exit end of pipeline of the present invention can be designed to the hydraucone structure.
As the third preferred version, the present invention is furnished with belt stress and adjusts muscle in the refractory masses in the described gun body outside; It is affixed through dowel and pipeline that described belt stress is adjusted muscle.
For increasing pull-out capacity, skeleton of the present invention can be selected the claw type structure.
As the 4th kind of preferred version, the present invention can fixedly be furnished with the winding-up pipe in described pipeline.
The raw material thing of refractory masses of the present invention contains following component in weight percentage:
Mullite 10～40%
Corundum 10～35%
Three-way stone 15～28%
Micro mist 8～12%
Steel fiber 1.5～3%.
Above-mentioned micro mist is α-Al
2O
3, silicon powder or α-Al
2O
3And the mixture of silicon powder; Refractory cements is an aluminate cement; Three-way stone is kyanite, andaluzite or sillimanite.
The present invention the time fully takes into account colding and heat succeed each other stress distribution situation in the process of unlike material in design, more can embody the barrier propterty of spray gun under the condition of high temperature in the selection of raw material for refractory thing.Sorbent utilization height of the present invention, working cost is cheap, and sweetening effectiveness is good, can be stably imports particle magnesium in the molten iron and obtains very high desulfurization index.
The present invention compared with prior art has following characteristics:
1, lance body structure of the present invention is reasonable, and is easily manufactured.
2, the present invention adds belt stress and adjusts muscle because skeleton adopts the claw type structure in refractory masses, this thinking has been improved the stress distribution situation of rifle body and refractory masses, thereby has alleviated the generation of phenomenons such as the surperficial refractory materials of spray gun ftractures, comes off.
3, support tube bank of the present invention has certain positive effect for the stress distribution situation of improving between pipeline and the refractory masses.
4, refractory materials of the present invention has the favorable protection performance under the condition of high temperature.
Description of drawings
The invention will be further described below in conjunction with the drawings and specific embodiments.Protection scope of the present invention will not only be confined to the statement of following content.
Fig. 1 is a desulphurization spray gun one-piece construction synoptic diagram of the present invention;
Fig. 2 is that desulphurization spray gun A-A of the present invention is to sectional view.
Embodiment
As shown in Figure 1, 2, desulphurization spray gun comprises: gun body 2, pipeline 1, refractory masses 4, skeleton 3, support tube bank 5; Described pipeline 1 is assigned in the gun body 2; Described refractory masses 4 is positioned at the outside of pipeline 1; Described skeleton 3 places in the refractory masses and with pipeline 1 and fixedly connects; Described support tube bank 5 fixedly connects with pipeline 1 outside.From the stress distribution angle, the described support tube bank 5 of desulphurization spray gun of the present invention is three, and the line of its cross section is equilateral triangle.Certainly, also can select the support more than three to restrain according to actual needs.In addition, for strengthening the stress distribution effect, the present invention can add the stress buffer agent in above-mentioned support tube bank 5.The exit end of the described pipeline 1 of desulphurization spray gun of the present invention is the hydraucone structure.This structure design that has vaporizing chamber has been strengthened the sweetening effectiveness of spray gun.For improving the stress distribution situation of rifle body and refractory masses, the present invention is furnished with belt stress and adjusts muscle 6 in the refractory masses 4 in described gun body 2 outsides; It is affixed through dowel 7 and pipeline 1 that described belt stress is adjusted muscle 6.The phenomenon that this structure design can effectively solve the refractory masses longitudinal cracking, come off.Skeleton 3 of the present invention is selected the claw type structure, can effectively improve the pull-out capacity of refractory masses.The present invention is furnished with winding-up pipe 8 at described pipeline 1 internal fixing.Winding-up pipe 8 is apart arrangement with pipeline 1, can effectively cushion spray gun winding-up pipe 8 like this in the process of winding-up magnesium grain, the severe vibration that causes owing to air-flow velocity is excessive.In addition, 1 pair of winding-up pipe 8 of pipeline also plays the certain protection effect.
Embodiment 1
The raw material thing of refractory masses 4 of the present invention contains following component in weight percentage:
Mullite 10%
Corundum 35%
Kyanite 28%
α-Al
2O
3Micro mist 12%
Aluminate cement 12%
Embodiment 2
The raw material thing of refractory masses 4 of the present invention contains following component in weight percentage:
Mullite 40%
Corundum 22%
Andaluzite 20%
Silicon powder 10%
Aluminate cement 6%
Steel fiber 2%.
The raw material thing of refractory masses 4 of the present invention contains following component in weight percentage:
Mullite 30%
Corundum 25%
Sillimanite 25%
α-Al
2O
3And the mixture 9% of silicon powder
Aluminate cement 8%
The raw material thing of refractory masses 4 of the present invention contains following component in weight percentage:
Mullite 25%
Corundum 30%
Andaluzite 21%
Silicon powder 11%
Aluminate cement 11%
Steel fiber 2%.
Be understandable that; more than about the specific descriptions of desulphurization spray gun; only also unrestricted the present invention in order to explanation the present invention; those of ordinary skill in the art is to be understood that; to the present invention can make amendment or etc. watch replacement; to reach identical technique effect, use needs as long as satisfy, the adjustment that the above-mentioned means of any foundation are made is all within protection scope of the present invention.
Claims (10)
1, a kind of desulphurization spray gun is characterized in that, comprising: gun body (2), pipeline (1), refractory masses (4), skeleton (3), support tube bank (5); Described pipeline (1) is assigned in the gun body (2); Described refractory masses (4) is positioned at the outside of pipeline (1); Described skeleton (3) places in the refractory masses and with pipeline (1) and fixedly connects; Described support tube bank (5) fixedly connects with pipeline (1) outside.
2, desulphurization spray gun according to claim 1 is characterized in that: described support tube bank (5) is three; The line of its cross section is equilateral triangle.
3, desulphurization spray gun according to claim 1 and 2 is characterized in that: the exit end of described pipeline (1) is the hydraucone structure.
4, desulphurization spray gun according to claim 1 and 2 is characterized in that: be furnished with belt stress and adjust muscle (6) in the refractory masses (4) in described gun body (2) outside; It is affixed through dowel (7) and pipeline (1) that described belt stress is adjusted muscle (6).
5, desulphurization spray gun according to claim 4 is characterized in that: described skeleton (3) is the claw type structure.
6, desulphurization spray gun according to claim 4 is characterized in that: be furnished with winding-up pipe (8) at described pipeline (1) internal fixing.
7, desulphurization spray gun according to claim 1 and 2 is characterized in that: the raw material thing of described refractory masses (4) contains following component in weight percentage:
Mullite 10～40%
Corundum 10～35%
Three-way stone 15～28%
Micro mist 8～12%
Refractory cements 3～12%
Steel fiber 1.5～3%.
8, desulphurization spray gun according to claim 7 is characterized in that: described micro mist is α-Al
2O
3, silicon powder or α-Al
2O
3And the mixture of silicon powder.
9, desulphurization spray gun according to claim 8 is characterized in that: described refractory cements is an aluminate cement.
10, desulphurization spray gun according to claim 9 is characterized in that: described three-way stone is kyanite, andaluzite or sillimanite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710158391XA CN101440418A (en) | 2007-11-20 | 2007-11-20 | Desulfuring spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710158391XA CN101440418A (en) | 2007-11-20 | 2007-11-20 | Desulfuring spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101440418A true CN101440418A (en) | 2009-05-27 |
Family
ID=40725026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710158391XA Pending CN101440418A (en) | 2007-11-20 | 2007-11-20 | Desulfuring spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101440418A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906512A (en) * | 2010-08-19 | 2010-12-08 | 中冶赛迪工程技术股份有限公司 | Spray gun for desulfuration of single-spray particle magnesium molten iron |
| CN102826864A (en) * | 2012-09-13 | 2012-12-19 | 武汉钢铁(集团)公司 | Composite-material molten iron desulfurization spray gun and preparation technique thereof |
| CN112939586A (en) * | 2021-04-14 | 2021-06-11 | 邯郸市鑫禧冶金新材料有限公司 | Production method of refractory material for desulfurization spray gun and refractory material |
-
2007
- 2007-11-20 CN CNA200710158391XA patent/CN101440418A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906512A (en) * | 2010-08-19 | 2010-12-08 | 中冶赛迪工程技术股份有限公司 | Spray gun for desulfuration of single-spray particle magnesium molten iron |
| CN101906512B (en) * | 2010-08-19 | 2012-07-25 | 中冶赛迪工程技术股份有限公司 | Spray gun for desulfuration of single-spray particle magnesium molten iron |
| CN102826864A (en) * | 2012-09-13 | 2012-12-19 | 武汉钢铁(集团)公司 | Composite-material molten iron desulfurization spray gun and preparation technique thereof |
| CN102826864B (en) * | 2012-09-13 | 2013-09-25 | 武汉钢铁(集团)公司 | Composite-material molten iron desulfurization spray gun and preparation technique thereof |
| CN112939586A (en) * | 2021-04-14 | 2021-06-11 | 邯郸市鑫禧冶金新材料有限公司 | Production method of refractory material for desulfurization spray gun and refractory material |
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Open date: 20090527 |