CN201801545U - Novel desulfurizing spray gun - Google Patents
Novel desulfurizing spray gun Download PDFInfo
- Publication number
- CN201801545U CN201801545U CN2010205368515U CN201020536851U CN201801545U CN 201801545 U CN201801545 U CN 201801545U CN 2010205368515 U CN2010205368515 U CN 2010205368515U CN 201020536851 U CN201020536851 U CN 201020536851U CN 201801545 U CN201801545 U CN 201801545U
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- CN
- China
- Prior art keywords
- spray gun
- desulphurization
- rotary joint
- swivel joint
- pipe
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- Expired - Lifetime
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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 discloses a desulfurizing spray gun for liquid iron pretreatment, which comprises a spray gun inner pipe on the inside, an refractory material layer on the outside, and a body arranged between the spray gun inner pipe and the refractory material layer, wherein the lower part of the refractory material layer is provided with a plurality of spray gun bores which are communicated with inner bores of the spray gun inner pipe. The utility model is characterized by also comprising a rotary joint arranged between the body and a blowing hose; and the rotary joint is a hollow stepped shaft, the upper part of the rotary joint is fixedly connected with the hose, and the lower part is connected with the body and can rotate along with the body. By adding the rotary joint, in the blowing process, the spray gun can make a free motion in the melting bath under the acting force of the jetting gas, so that the melting bath has one more function of stirring; and thus, the desulfurizer can be blown in the liquid iron in a more dispersedly way, thereby increasing the contact area of desulfurizer with sulfur in liquid iron, greatly enhancing the desulfurizing efficiency, reducing the desulfurizer consumption and effectively lowering the splashing iron loss.
Description
Technical field
The utility model 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 in the utility model 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 utility model, 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 utility model 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 utility model;
Fig. 2 is the winding-up design sketch 1 of desulphurization spray gun of the present utility model;
Fig. 3 is the winding-up design sketch 2 of desulphurization spray gun of the present utility model.
Embodiment
Desulphurization spray gun of the present utility model, 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.The utility model desulphurization spray gun 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 utility model, 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 utility model 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 utility model 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 |
|---|---|---|---|
| CN2010205368515U CN201801545U (en) | 2010-09-17 | 2010-09-17 | Novel desulfurizing spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205368515U CN201801545U (en) | 2010-09-17 | 2010-09-17 | Novel desulfurizing spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201801545U true CN201801545U (en) | 2011-04-20 |
Family
ID=43871060
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205368515U Expired - Lifetime CN201801545U (en) | 2010-09-17 | 2010-09-17 | Novel desulfurizing spray gun |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201801545U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948942A (en) * | 2010-09-17 | 2011-01-19 | 马鞍山市鑫海耐火材料有限责任公司 | Novel desulfurization spray gun |
| CN109351511A (en) * | 2018-11-28 | 2019-02-19 | 东莞市昱联智能自动化有限公司 | A kind of rotatable spray gun and hot melt adhesive spray gun |
| CN110396572A (en) * | 2019-07-30 | 2019-11-01 | 钢铁研究总院 | A kind of the dephosphorization of molten iron device and dephosphorization method of smelting stainless steel |
-
2010
- 2010-09-17 CN CN2010205368515U patent/CN201801545U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101948942A (en) * | 2010-09-17 | 2011-01-19 | 马鞍山市鑫海耐火材料有限责任公司 | Novel desulfurization spray gun |
| CN101948942B (en) * | 2010-09-17 | 2012-10-03 | 马鞍山市鑫海耐火材料有限责任公司 | Novel desulfurization spray gun |
| CN109351511A (en) * | 2018-11-28 | 2019-02-19 | 东莞市昱联智能自动化有限公司 | A kind of rotatable spray gun and hot melt adhesive spray gun |
| CN110396572A (en) * | 2019-07-30 | 2019-11-01 | 钢铁研究总院 | A kind of the dephosphorization of molten iron device and dephosphorization method of smelting stainless steel |
| CN110396572B (en) * | 2019-07-30 | 2020-10-16 | 钢铁研究总院 | Molten iron dephosphorization device and dephosphorization method for smelting stainless steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110420 Effective date of abandoning: 20121003 |