CN102433411A - Swinging molten iron desulfurization pretreatment spray gun - Google Patents
Swinging molten iron desulfurization pretreatment spray gun Download PDFInfo
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- CN102433411A CN102433411A CN2011104345290A CN201110434529A CN102433411A CN 102433411 A CN102433411 A CN 102433411A CN 2011104345290 A CN2011104345290 A CN 2011104345290A CN 201110434529 A CN201110434529 A CN 201110434529A CN 102433411 A CN102433411 A CN 102433411A
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- spray gun
- molten iron
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- pipe
- jet pipe
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention belongs to the field of molten iron desulfurization equipment, and in particular relates to a swinging molten iron desulfurization pretreatment spray gun. The spray gun comprises a flange (1), a spray pipe (2), a framework (3) fixedly arranged on the spray pipe (2) and a refractory material layer (4); one end of the spray pipe (2) is fixedly connected with the flange (1); the spray pipe (2) is arranged in the refractory material layer (4); a three-way gas carrying pipe (5) is fixedly arranged on the flange (1); the gas outlet of the three-way gas carrying pipe (5) is communicated with the gas inlet of the spray pipe (2); a swinging mechanism (6) is fixedly arranged on the flange (1); and a flared vaporization chamber (7) is formed at the lower end of the spray pipe (2). Through the spray gun, the mixing and stirring effects of molten iron and a desulfurization agent can be improved, the floating track of carrier gas flow is changed, the desulfurization rate is improved, and the splashing strength is reduced.
Description
Technical field
the invention belongs to the desulfurizing iron apparatus field, relate in particular to a kind of swing type desulfurizing spray gun for pretreating molten iron.
Background technology
injection metallurgy typically refers to the fixed blowing process of widespread use in industry: spray gun is from furnace bottom, and furnace wall and furnace roof all remain static when jet in the molten bath.When spray gun when furnace bottom is upwards jetted, fixed blowing process is unique method, promptly spray gun need be fixed in the flame retardant coating of furnace bottom.When spray gun inserts winding-up from the furnace wall, generally also remain static.
spray gun blowing process has become one of main method of desulfurizing iron; But used fixed blowing process improvable place on kinetics mixing condition of decades more limited, be not easy further to improve desulfuration efficiency and the utilization ratio that improves sweetening agent.It is very big that high speed jet and molten iron rock the vibration that makes spray gun, when winding-up, need adopt fixedly spray gun of clamper, not only requires spray gun physical strength height, but also require jacking equipment that stronger supporting capacity is arranged.
Characteristics such as
existing desulfurizing spray gun for pretreating molten iron all adopts the static spray gun of column type, and it is big that this type of spray gun exists sweetening agent splash intensity, and sweetening agent and molten iron mixed effect are poor, and desulfuration efficiency is low.
Summary of the invention
the present invention is intended to overcome the weak point of prior art and a kind of mixing effect that mixes that improves molten iron and sweetening agent is provided; Change carrier gas stream come-up track, the swing type desulfurizing spray gun for pretreating molten iron that improves desulfurization degree and splash intensity is reduced.
for solving the problems of the technologies described above, the present invention is achieved in that a kind of swing type desulfurizing spray gun for pretreating molten iron, and it comprises flange 1, jet pipe 2, is fixedly arranged on skeleton 3 and refractory masses 4 on the jet pipe 2; One end and the flange 1 of said jet pipe 2 are fixedly connected; Said jet pipe 2 places within the refractory masses 4; On said flange 1, be fixed with triplet type carrier gas pipe 5; The air outlet of said triplet type carrier gas pipe 5 communicates with the air intake of jet pipe 2.
as a kind of preferred version, the present invention can be fixed with tilting mechanism 6 on said flange 1.
as another kind of preferred version, the present invention is provided with hydraucone vaporizing chamber 7 in the lower end of said jet pipe 2.
compared with prior art, the present invention has following characteristics.
(1) when winding-up, spray gun is in dynamical state.Need not technological process, injection system are changed; In when operation, with the top of refractory lance with can swing mechanism and connect, do not have clamper on the spray gun; When winding-up, lean on the injection gas reactive force of self, spray gun bottom spout can freely move about in molten iron at random.
(2) the present invention spray gun that freely swings turns to the whole random walk of spray gun to the fixing vibrations of spray gun, has reduced the internal stress of spray gun, has prolonged the work-ing life of spray gun.
(3) under the condition of no drive unit, swing type spray gun of the present invention is given the stirring in molten bath.If carrier gas flux is certain, the rifle position is certain, and spray gun can move about in certain scope, changes if spray gun moves about, and explains that winding-up or iron bath have change.Static spray gun is sprayed on sweetening agent on the point of fixity at iron bath center, and spray gun of the present invention is injected in sweetening agent on the face, and sweetening agent homodisperse and molten iron are mixed, and has enlarged conversion zone, and the continuous and undressed molten iron of sweetening agent is contacted.
(4) are under the impact of molten iron; Sweetening agent separates with carrier gas under spout more easily and gets into molten iron; In the sweetening agent floating-upward process, also receive mixing of spray gun; Sweetening agent whole in molten iron blow down with floating-upward process in all receive influence from the spray gun swing, the reaction times of sweetening agent in molten iron prolonged and mix better with molten iron.
(5) fixedly the HS winding-up of spray gun can cause molten iron splash and damage furnace bottom, and moving about of spray gun of swing can be slowed down these negative impacts.
Description of drawings
are described further the present invention below in conjunction with accompanying drawing and embodiment.
Fig. 1 is one embodiment of the present invention structural representation.
Fig. 2 is the another embodiment of the present invention structural representation.
Among
figure: 1, flange; 2, jet pipe; 3, skeleton; 4, refractory masses; 5, triplet type carrier gas pipe; 6, tilting mechanism.
Embodiment
are as shown in Figure 1, the swing type desulfurizing spray gun for pretreating molten iron, and it comprises flange 1, jet pipe 2, is fixedly arranged on skeleton 3 and refractory masses 4 on the jet pipe 2; One end and the flange 1 of said jet pipe 2 are fixedly connected; Said jet pipe 2 places within the refractory masses 4; On said flange 1, be fixed with triplet type carrier gas pipe 5; The air outlet of said triplet type carrier gas pipe 5 communicates with the air intake of jet pipe 2.
the present invention can be fixed with tilting mechanism 6 on said flange 1.When carrying out desulfuration operations,, can tilting mechanism 6 be connected with related work mechanism when the swing of needs rifle body.Like this, in jet pipe 2 blowing desulfurization agent, the rifle body also plays the mixing stirring action to molten iron and sweetening agent.
Insert from furnace roof at spray gun
, when spray gun and furnace roof are gapped, just can realize the swing or the rotation of spray gun.The ladle of desulfurizing iron and torpedo car all are upper opening formula containers, and furnace roof inserts spray gun has the swing space, and dynamically the Desulfurization Application of spray gun has had possibility.In identical water model test, compare with fixing spray gun, the contriver finds that rotary spray gun diminishes bubble, and ascent rate is slack-off, and ascent rate is slack-off to diminish with bubble, and blistered intensity is relevant with the track that floats.
referring to Fig. 2, according to actual needs, the present invention also can be provided with hydraucone vaporizing chamber 7 in the lower end of said jet pipe 2.
The above is merely the preferred embodiments of the present invention
, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the swing type desulfurizing spray gun for pretreating molten iron is characterized in that, comprises flange (1), jet pipe (2), is fixedly arranged on skeleton (3) and refractory masses (4) on the jet pipe (2); One end of said jet pipe (2) and flange (1) are fixedly connected; Said jet pipe (2) places within the refractory masses (4); On said flange (1), be fixed with triplet type carrier gas pipe (5); The air outlet of said triplet type carrier gas pipe (5) communicates with the air intake of jet pipe (2).
2. swing type desulfurizing spray gun for pretreating molten iron according to claim 1 is characterized in that: on said flange (1), be fixed with tilting mechanism (6).
3. swing type desulfurizing spray gun for pretreating molten iron according to claim 2 is characterized in that: be provided with hydraucone vaporizing chamber (7) in the lower end of said jet pipe (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104345290A CN102433411A (en) | 2011-12-22 | 2011-12-22 | Swinging molten iron desulfurization pretreatment spray gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104345290A CN102433411A (en) | 2011-12-22 | 2011-12-22 | Swinging molten iron desulfurization pretreatment spray gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102433411A true CN102433411A (en) | 2012-05-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011104345290A Pending CN102433411A (en) | 2011-12-22 | 2011-12-22 | Swinging molten iron desulfurization pretreatment spray gun |
Country Status (1)
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| CN (1) | CN102433411A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463148A (en) * | 2015-12-05 | 2016-04-06 | 武汉科技大学 | Torpedo ladle molten iron desulphurization spray gun device capable of changing injection angle and desulphurization method of torpedo ladle molten iron desulphurization spray gun device |
-
2011
- 2011-12-22 CN CN2011104345290A patent/CN102433411A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105463148A (en) * | 2015-12-05 | 2016-04-06 | 武汉科技大学 | Torpedo ladle molten iron desulphurization spray gun device capable of changing injection angle and desulphurization method of torpedo ladle molten iron desulphurization spray gun device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C05 | Deemed withdrawal (patent law before 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120502 |