CN101948942A - Novel desulfurization spray gun - Google Patents
Novel desulfurization spray gun Download PDFInfo
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- CN101948942A CN101948942A CN 201010287976 CN201010287976A CN101948942A CN 101948942 A CN101948942 A CN 101948942A CN 201010287976 CN201010287976 CN 201010287976 CN 201010287976 A CN201010287976 A CN 201010287976A CN 101948942 A CN101948942 A CN 101948942A
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- spray gun
- swivel joint
- desulphurization
- pipe
- material layer
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a novel desulfurization spray gun. The novel desulfurization spray gun comprises an internal spray gun inner pipe, an external refractory material layer and a body arranged between the spray gun inner pipe and the refractory material layer, wherein a plurality of spray gun holes communicated with inner holes of the spray gun inner pipe are reserved on the lower part of the refractory material layer. The novel desulfurization spray gun is characterized by further comprising a swivel joint arranged between the body and an injection hose, wherein the swivel joint is a hollow stepped shaft; the upper part of the swivel joint is fixedly connected with the hose, while the lower part is connected with the body; and the swivel joint can rotate together with the body. The spray gun can freely move in a molten pool by means of spraying gas acting force of the spray gun when spraying by adding the swivel joint, so that the stirring function is added to the molten bath; a desulfurizing agent is more dispersedly sprayed into molten iron, the contact area of the desulfurizing agent and sulphur in the molten iron is increased, the desulfurization efficiency is greatly improved, the consumption of the desulfurizing agent is reduced, and the slopping iron loss is effectively reduced.
Description
Technical field
The present invention relates to a kind of hot metal pretreatment desulphurization spray gun.
Background technology
At present, in order to improve the cost of steel grade quality, expansion kind, reduction steel making working procedure, desulfurizing iron has become the important means that technical process is optimized in modern steel industry.Desulphurization spray gun has great influence as the key part in the hot metal pretreatment system for the safety operation of sweetening process and the quality of molten iron.Between the winding-up flexible pipe of existing spray gun and the body for fixedlying connected, whole spray gun is fixed by top, makes spray gun maintain static in the winding-up process and is static state, and the contact area of sulphur is less in sweetening agent and the molten iron, desulfuration efficiency is low, has increased the consumption of sweetening agent; Because sweetening agent only concentrates on the middle portion of molten iron, make desulphurization reaction inhomogeneous simultaneously, desulfurization time is long, temperature drop is big, and splash easily causes iron loss.The long service life of lance that reduced of winding-up time.Therefore, use desulphurization spray gun aspect sweetening effectiveness and splash, to compare obvious deficiency with the KR stirring desulphurization.But the KR stirring desulphurization mainly is useful on 180 tons of hot metal ladle, and can not use on torpedo tank car, is subjected to certain restriction.
Summary of the invention
Problem to be solved by this invention provides a kind of novel desulphurization spray gun, and it can be rotated in the winding-up process, thereby reduces the molten iron splash, improves sweetening effectiveness.
Desulphurization spray gun of the present invention, comprise pipe in the inner spray gun, outside refractory masses, be arranged on the body between the pipe and refractory masses in the spray gun, have several gun holes in the bottom of refractory masses, communicate with the endoporus of pipe in the spray gun, it is characterized in that: further comprising the swivel joint that is arranged between body and the winding-up flexible pipe, swivel joint is hollow step shaft, fixedlys connected with flexible pipe in its top, its underpart is connected with body, and can rotate with body.
The present invention is by increasing swivel joint between the body of existing desulphurization spray gun and winding-up flexible pipe, make spray gun injection gas reactive force by self when winding-up, can in the molten bath, do free movement, thereby given more than the molten bath agitating function, sweetening agent is jetted more dispersedly in molten iron, increase the contact area of sulphur in sweetening agent and the molten iron, improved desulfuration efficiency greatly, reduced the consumption of sweetening agent; Simultaneously because desulphurization reaction is even, make that desulfurization time is short, temperature drop is little, reduced the splash iron loss effectively; In addition under the same conditions, the winding-up time that reaches with the same sweetening effectiveness of existing desulphurization spray gun shortens, and has correspondingly also improved service life of lance.
Description of drawings
Fig. 1 is the structural representation of desulphurization spray gun of the present invention;
Fig. 2 is the winding-up design sketch 1 of desulphurization spray gun of the present invention;
Fig. 3 is the winding-up design sketch 2 of desulphurization spray gun of the present invention.
Embodiment
Desulphurization spray gun of the present invention, comprise pipe 1 in the inner spray gun, outside refractory masses 3, be arranged on the body 2 between the pipe 1 and refractory masses 3 in the spray gun, have several gun holes in the bottom of refractory masses 3, communicate with the endoporus of pipe 1 in the spray gun, it is characterized in that: further comprising the swivel joint 4 that is arranged between body 2 and the winding-up flexible pipe 5; Swivel joint 4 is hollow step shaft, fixedlys connected with flexible pipe 5 in its top, and its underpart is connected with body 2, and can be with body 2 rotations.Desulphurization spray gun of the present invention is by being connected with swivel joint between winding-up flexible pipe 5 and body 2, like this when winding-up by the injection gas reactive force of self, free movement can be done in the bottom of spray gun in the molten bath, spray gun give the molten bath many an agitating function.
Wherein, swivel joint 4 can also can be connected by flange by being threaded with flexible pipe 5.Swivel joint 4 can directly match with body 2, also can be provided with bearing by between.
As a kind of optimal way of the present invention, desulphurization spray gun also comprises the axial direction positioning device that is arranged on body 2 middle parts.Axial direction positioning device is made up of the exterior and interior axle sleeves 6,7 and the strongback 8 that cooperatively interact; The internal diameter of internal axle sleeve 6 is slightly larger than the external diameter of body 2, and outer shaft 7 is fixed on the clamping device; Strongback 8 is fixed on the body 2, and its external diameter is greater than the external diameter of outer shaft 7.Device had herein both guaranteed that spray gun can rotate freely when spraying, make spray gun slow down platform vibration and gunjet rack shake again when winding-up.Thereby further improved the effect of winding-up, improved service life of lance.
The present invention is by increasing swivel joint and axial direction positioning device at existing desulphurization spray gun, make spray gun injection gas reactive force by self when winding-up, can in the molten bath, do free movement, thereby given more than the molten bath agitating function, sweetening agent is jetted more dispersedly in molten iron, increase the contact area of sulphur in sweetening agent and the molten iron, improved desulfuration efficiency greatly, reduced the consumption of sweetening agent; Simultaneously because desulphurization reaction is even, make that desulfurization time is short, temperature drop is little, reduced the splash iron loss effectively; In addition under the same conditions, the winding-up time that reaches with the same sweetening effectiveness of existing desulphurization spray gun shortens, and has correspondingly also improved service life of lance.Wherein the rotating speed of spray gun is adjustable.The range of movement of spray gun depends on the injection rate of gas, and speed is big more, and the range of movement of free spray gun is wide more.Practice shows, uses desulphurization spray gun of the present invention desulfuration efficiency can be improved 20～30%, the metal minimizing of splashing, and temperature drop reduces 30～40%.
Claims (5)
1. novel desulphurization spray gun, comprise pipe (1) in the inner spray gun, outside refractory masses (3), be arranged on the body (2) between the pipe (1) and refractory masses (3) in the spray gun, bottom at refractory masses (3) has several gun holes, communicate with the endoporus of pipe (1) in the spray gun, it is characterized in that: further comprising the swivel joint (4) that is arranged between body (2) and the winding-up flexible pipe (5); Swivel joint (4) is hollow step shaft, fixedlys connected with flexible pipe (5) in its top, and its underpart is connected with body (2), and can rotate with body (2).
2. desulphurization spray gun according to claim 1 is characterized in that: swivel joint (4) can also can be connected by flange by being threaded with flexible pipe (5).
3. desulphurization spray gun according to claim 1 is characterized in that: swivel joint (4) can directly match with body (2), also can be provided with bearing by between.
4. desulphurization spray gun according to claim 1 is characterized in that: desulphurization spray gun also comprises the axial direction positioning device that is arranged on body (2) middle part.
5. desulphurization spray gun according to claim 4 is characterized in that: described axial direction positioning device is made up of the exterior and interior axle sleeves that cooperatively interacts (6), (7) and strongback (8); The internal diameter of internal axle sleeve (6) is slightly larger than the external diameter of body (2), and outer shaft (7) is fixed on the clamping device; Strongback (8) is fixed on the body (2), and its external diameter is greater than the external diameter of outer shaft (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010287976A CN101948942B (en) | 2010-09-17 | 2010-09-17 | Novel desulfurization spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010287976A CN101948942B (en) | 2010-09-17 | 2010-09-17 | Novel desulfurization spray gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101948942A true CN101948942A (en) | 2011-01-19 |
| CN101948942B CN101948942B (en) | 2012-10-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010287976A Expired - Fee Related CN101948942B (en) | 2010-09-17 | 2010-09-17 | Novel desulfurization spray gun |
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| Country | Link |
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| CN (1) | CN101948942B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344994A (en) * | 2011-09-22 | 2012-02-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization spray gun |
| CN102766720A (en) * | 2012-06-28 | 2012-11-07 | 攀钢集团研究院有限公司 | Desulphurization spray gun and desulphurization method thereof |
| CN107739777A (en) * | 2017-10-30 | 2018-02-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary desulfurization spray gun flange connection |
| CN112973561A (en) * | 2021-03-16 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Molten iron desulfurization equipment and clamping device for rotary desulfurization of molten iron desulfurization equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254763A (en) * | 1998-11-25 | 2000-05-31 | 鞍山钢铁集团公司 | Desulfurizing method and equipment by co-stirring of machine and gas |
| CN2701872Y (en) * | 2004-04-27 | 2005-05-25 | 宝山钢铁股份有限公司 | Hot metal desulfurization lance |
| CN2782702Y (en) * | 2005-03-10 | 2006-05-24 | 钢铁研究总院 | Rotary jet gun with agitator |
| CN201801545U (en) * | 2010-09-17 | 2011-04-20 | 马鞍山市鑫海耐火材料有限责任公司 | Novel desulfurizing spray gun |
-
2010
- 2010-09-17 CN CN201010287976A patent/CN101948942B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1254763A (en) * | 1998-11-25 | 2000-05-31 | 鞍山钢铁集团公司 | Desulfurizing method and equipment by co-stirring of machine and gas |
| CN2701872Y (en) * | 2004-04-27 | 2005-05-25 | 宝山钢铁股份有限公司 | Hot metal desulfurization lance |
| CN2782702Y (en) * | 2005-03-10 | 2006-05-24 | 钢铁研究总院 | Rotary jet gun with agitator |
| CN201801545U (en) * | 2010-09-17 | 2011-04-20 | 马鞍山市鑫海耐火材料有限责任公司 | Novel desulfurizing spray gun |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102344994A (en) * | 2011-09-22 | 2012-02-08 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization spray gun |
| CN102766720A (en) * | 2012-06-28 | 2012-11-07 | 攀钢集团研究院有限公司 | Desulphurization spray gun and desulphurization method thereof |
| CN107739777A (en) * | 2017-10-30 | 2018-02-27 | 攀钢集团攀枝花钢铁研究院有限公司 | Rotary desulfurization spray gun flange connection |
| CN112973561A (en) * | 2021-03-16 | 2021-06-18 | 攀钢集团攀枝花钢铁研究院有限公司 | Molten iron desulfurization equipment and clamping device for rotary desulfurization of molten iron desulfurization equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101948942B (en) | 2012-10-03 |
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Address after: 243000 Anhui city of Ma'anshan Province Economic and Technological Development Zone West Road No. 155 Patentee after: ANHUI XINHAI ENVIRONMENTAL PROTECTION NEW MATERIAL CO., LTD. Address before: 243000 Anhui city of Ma'anshan Province Economic and Technological Development Zone West Road No. 155 Patentee before: Maanshan Xinhai Refractory Material Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20190917 |
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| CF01 | Termination of patent right due to non-payment of annual fee |