CN203048978U - Desulphurization spray gun for refining molten iron - Google Patents
Desulphurization spray gun for refining molten iron Download PDFInfo
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- CN203048978U CN203048978U CN 201220719300 CN201220719300U CN203048978U CN 203048978 U CN203048978 U CN 203048978U CN 201220719300 CN201220719300 CN 201220719300 CN 201220719300 U CN201220719300 U CN 201220719300U CN 203048978 U CN203048978 U CN 203048978U
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- molten iron
- desulphurization
- air
- spray gun
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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 molten iron desulphurization equipment and in particular relates to a desulphurization spray gun for refining molten iron. The desulphurization spray gun for refining molten iron comprises a central spray tube (1), an air-cooled cyclonic mixing tube (2), a refractory material layer (3), a protection tube (5) and a skeleton (4), wherein the refractory material layer (3) is arranged outside the air-cooled cyclonic mixing tube (2); the central spray tube (1) is arranged inside the air-cooled cyclonic mixing tube (2); the air-cooled cyclonic mixing tube (2) is sheathed in the protection tube (5); the skeleton (4) is arranged inside the refractory material layer (3) and is fixedly connected with the outer wall of the protection tube (5); vortex sheets (6) are fixedly arranged on the outer wall of the central spray tube (1); a power supply wiring port assembly (7) is fixedly arranged at the upper part of the protection tube (5); and the signal port of the power supply wiring port assembly (7) is connected with the protection tube (5). The desulphurization spray gun for refining molten iron can improve utilization rate of a desulphurization agent directly applied to desulphurization, heat loss can be reduced, melt splashing in a molten iron desulphurization process can be effectively reduced, and desulphurization efficiency is high.
Description
Technical field
the utility model belongs to the desulfurizing iron apparatus field, relates in particular to a kind of molten iron refining desulphurization spray gun.
Background technology
from the 1950's, development is widely used external desulfurization of hot metal blowing desulfurization technology so far.This technology can adapt to various sweetening agent preferably, gives full play to the sweetening power of sweetening agent, reaches good sweetening effectiveness.
adopt powder material to carry out desulfurizing iron, such as with magnesium or magnesium based mixtures (limy, carbide of calcium, rhombspar and other add composition), mixture can improve bag top slag take in sulphur ability (Sulfur capacity), realize that aforesaid method equipment used comprises gun shot, sweetening agent feed pipeline, hot metal ladle splash guard, dust excluding hood and supervisory control desk that gauger, spray sweetening agent and monitoring feeding system, submerged type refractory lance and the tubulose interior passageway made from metallic substance thereof, mobile spray gun with material feeder are used.Although aforesaid method and equipment by wide-scale adoption, remain in following three problems: (1) sweetening agent is not fully absorbed, related to this is directly use the utilization ratio in desulfurization and the peak use rate that may reach between also have gap; (2) during the processing, hot metal temperature drop is obvious; (3) enter slag with the abrasive grit form and the iron loss lost with skimming is quite large after end treatment.
in addition, existing spray gun is because the winding-up rabbling door concentrates on gun head substantially, and it can not effectively destroy the winding-up bubble of rising, and spray orifice easily stops up and is difficult to safeguard and processes, and lance head is deteriorated, and reduce work-ing life.
secondly, due to desulphurization spray gun, when in running order, inhomogeneous because of the internal temperature field distribution, differing materials is affected by the factor such as stress conduction to cause rifle body refractory materials cracking to come off.Some gun heads, with a sweetening agent vaporizing chamber, to strengthen the vaporization effect of sweetening agent, improve desulfuration efficiency, but, because vaporizing chamber is larger, the pressure that it has reduced nozzle, are easy to form large bubble, causes the melt splash.
in view of above-mentioned factor, eliminate these shortcomings and guarantee that obtaining new benefit is problem to be solved in the utility model.
Summary of the invention
the utility model is intended to overcome the deficiencies in the prior art part and provides a kind of, can improve the utilization ratio that sweetening agent is directly used in sulphur removal, reduce thermosteresis, be convenient to safeguard, can effectively reduce melt splash in the desulfurizing iron process, improve the rifle body stress and distribute, a kind of molten iron refining desulphurization spray gun that desulfuration efficiency is high.
for solving the problems of the technologies described above, the utility model is to realize like this.
a kind of molten iron refining desulphurization spray gun, it comprises core jet pipe, air-cooled cyclone stirring pipe, refractory masses, pillar and skeleton; Described refractory masses is assigned in the outside of air-cooled cyclone stirring pipe; Described core jet pipe is placed in air-cooled cyclone stirring pipe; Described air-cooled cyclone stirring pipe is set in pillar; Described skeleton is positioned at refractory masses and is fixedly connected with the outer wall of pillar; Outer wall at described core jet pipe is fixed with the vortex sheet; On the top of described pillar, be fixed with power supply wiring port assembly in refractory masses; Signal port and the pillar of described power supply wiring port assembly join.
as a kind of preferred version, power supply wiring port assembly described in the utility model comprises refractory insulating layer and power wiring seat; Described power wiring seat is consolidated in refractory insulating layer.
as another kind of preferred version, skeleton described in the utility model can adopt transverse annular muscle and longitudinal rib to intersect fixedly reticulated structure.
the utility model is by the structures such as vortex sheet that are fixed with at the fixedly sleeved air-cooled cyclone stirring pipe of core jet pipe central region and core jet pipe outer wall, the vortex effect of the air-flow of can realizing jetting.Desulfurization powder, forms downward jet and causes bubble floating on backward from gun head spray orifice ejection through core jet pipe, and the sulphur in molten iron is deviate from bubble sweetening agent and melt effect in floating-upward process.Air-cooled cyclone stirs gas and sprays from jet pipe, the floating of dusting bubble smashes and slows down ascent rate, can adopt vortex effect simultaneously due to airflow passes vortex sheet the time, the winding-up air-flow is under the effect of vortex effect, the desulfuration efficiency of sweetening agent greatly improves, in addition, the winding-up air-flow flows and also can play cooling effect to metal gun core in air-cooled cyclone stirring pipe.
the utility model, by slipping into the molten iron depths, imports electric current at its outlet position, due to the importing of having accelerated electronics or derivation speed, thereby has strengthened the effect of potential energy to desulphurization reaction chemistry component.Bubbles of carrier gas is in effective stirring of sweetening agent feed zone, in strengthening fluid kinetic exchange process, refining process is converted into to active status exchange from the dispersion state exchange, this just contributes to whole molten iron space in bag is all attracted to sweetening process, be finally to have accelerated desulfuration operations, guaranteed the utilization ratio that reduces temperature loss and improved sweetening agent.
The accompanying drawing explanation
below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
fig. 1 is one-piece construction schematic diagram of the present utility model.
in figure: 1, core jet pipe; 2, cold air revolves stirring pipe; 3, refractory masses; 4, skeleton; 5, pillar; 6, vortex sheet; 7, power supply wiring port assembly; 8, refractory insulating layer; 9, power wiring seat.
Embodiment
as shown in the figure, a kind of molten iron refining desulphurization spray gun, it comprises core jet pipe 1, air-cooled cyclone stirring pipe 2, refractory masses 3, pillar 5 and skeleton 4; Described refractory masses 3 is assigned in the outside of air-cooled cyclone stirring pipe 2; Described core jet pipe 1 is placed in air-cooled cyclone stirring pipe 2; Described air-cooled cyclone stirring pipe 2 is set in pillar 5; Described skeleton 4 is positioned at refractory masses 3 and is fixedly connected with the outer wall of pillar 5; Outer wall at described core jet pipe 1 is fixed with vortex sheet 6; On the top of described pillar 5, be fixed with power supply wiring port assembly 7 in refractory masses 3; Signal port and the pillar 5 of described power supply wiring port assembly 7 join.
power supply wiring port assembly 7 described in the utility model comprises refractory insulating layer 8 and power wiring seat 9; Described power wiring seat 9 is consolidated in refractory insulating layer 8.
for improving the stress distribution between rifle body differing materials, improve the work-ing life of spray gun, skeleton 4 described in the utility model can adopt transverse annular muscle and longitudinal rib to intersect fixedly reticulated structure.
the metal construction in the conduction pipeline in the utility model spray gun and rifle and the hardware of equipment and workshop is carried out electrical isolation, and what to molten iron, apply that electric current and migration current afterwards adopt is electrode special, the stick electrode of using the material that electric conductivity is high (such as graphite, iron-carbon) to make.
the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, 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 (3)
1. a molten iron refining desulphurization spray gun, is characterized in that, comprises core jet pipe (1), air-cooled cyclone stirring pipe (2), refractory masses (3), pillar (5) and skeleton (4); Described refractory masses (3) is assigned in the outside of air-cooled cyclone stirring pipe (2); Described core jet pipe (1) is placed in air-cooled cyclone stirring pipe (2); Described air-cooled cyclone stirring pipe (2) is set in pillar (5); Described skeleton (4) is positioned at refractory masses (3) and is fixedly connected with the outer wall of pillar (5); Outer wall at described core jet pipe (1) is fixed with vortex sheet (6); Top in described pillar (5) is fixed with power supply wiring port assembly (7) in refractory masses (3); The signal port of described power supply wiring port assembly (7) and pillar (5) join.
2. a kind of molten iron refining desulphurization spray gun according to claim 1, it is characterized in that: described power supply wiring port assembly (7) comprises refractory insulating layer (8) and power wiring seat (9); Described power wiring seat (9) is consolidated in refractory insulating layer (8).
3. a kind of molten iron refining desulphurization spray gun according to claim 2 is characterized in that: described skeleton (4) adopts transverse annular muscle and longitudinal rib to intersect fixedly reticulated structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719300 CN203048978U (en) | 2012-12-24 | 2012-12-24 | Desulphurization spray gun for refining molten iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220719300 CN203048978U (en) | 2012-12-24 | 2012-12-24 | Desulphurization spray gun for refining molten iron |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203048978U true CN203048978U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220719300 Expired - Fee Related CN203048978U (en) | 2012-12-24 | 2012-12-24 | Desulphurization spray gun for refining molten iron |
Country Status (1)
| Country | Link |
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| CN (1) | CN203048978U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978341A (en) * | 2012-12-24 | 2013-03-20 | 营口戴斯玛克科技发展有限公司 | Desulfuration spray gun for molten iron refining |
| CN103642983A (en) * | 2013-12-24 | 2014-03-19 | 辽宁新邦科技有限公司 | Molten metal stirrer |
| CN104060014A (en) * | 2013-09-27 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization spray gun and desulfurization method |
| CN108374070A (en) * | 2018-05-04 | 2018-08-07 | 北京京科名创工程技术有限公司 | It is blown injecting agitating device |
-
2012
- 2012-12-24 CN CN 201220719300 patent/CN203048978U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102978341A (en) * | 2012-12-24 | 2013-03-20 | 营口戴斯玛克科技发展有限公司 | Desulfuration spray gun for molten iron refining |
| CN104060014A (en) * | 2013-09-27 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Desulfurization spray gun and desulfurization method |
| CN103642983A (en) * | 2013-12-24 | 2014-03-19 | 辽宁新邦科技有限公司 | Molten metal stirrer |
| CN108374070A (en) * | 2018-05-04 | 2018-08-07 | 北京京科名创工程技术有限公司 | It is blown injecting agitating device |
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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: 20130710 Termination date: 20171224 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |