CN205329103U - High -efficiency molten iron desulphurization spraying gun - Google Patents
High -efficiency molten iron desulphurization spraying gun Download PDFInfo
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- CN205329103U CN205329103U CN201620001790.XU CN201620001790U CN205329103U CN 205329103 U CN205329103 U CN 205329103U CN 201620001790 U CN201620001790 U CN 201620001790U CN 205329103 U CN205329103 U CN 205329103U
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- gas distribution
- molten iron
- gas injection
- distribution bin
- spray gun
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model belongs to a hot metal pretreatment sweetener field especially relates to a high -efficiency molten iron desulphurization spraying gun, including the spray gun body, the spray gun body includes central nozzle (1), air receiver (2) and gas distribution storehouse (3), air receiver (2) are passed in central nozzle (1), and meet rather than fixed, be equipped with gas injection pipe (4) in gas distribution storehouse (3), last port and air receiver (2) of gas injection pipe (4) communicate with each other, and the port communicates with each other with gas distribution storehouse (3) under it, the lateral wall of gas distribution storehouse (3) is equipped with several gas injection mouth (5), the external fixation of gas distribution storehouse (3) is equipped with refractory material protective layer (6). The utility model discloses simple structure, the stirring reinforce, the desulfurization is efficient.
Description
Technical field
This utility model belongs to molten iron pretreatment desulfurizing apparatus field, particularly relates to a kind of efficiently molten iron desulfuring spray gun。
Background technology
Along with modern industry produces and scientific and technical developing rapidly, the requirement of steel product quality is improved day by day。Such as, in order to avoid steel billet produces underbead crack and obtains good surface quality, it is desirable to the sulfur content of ordinary steel is less than 0.020%；In order to make structural steel have uniform mechanical performance (namely reducing anisotropy), it is desirable in steel, sulfur content is less than 0.010%；In order to make oil and natural gas conveying pipe, petroleum refining unit steel, offshore production platform steel, cryogenic steel, medium-thickness ship plate steel and aviation steel etc. have the impact flexibility of hydrogen induced cracking resistance, energy, mechanical performance evenly and Geng Gao, silicon steel has good electromagnetic performance, sheet steel has excellent deep drawability etc., it is desirable in steel, sulfur content is less than 0.005%。Require the steel of such low-sulfur, smelt iron what a converter steelmaking process was difficult to produce with traditional blast furnace continuous casting steel machine, only could produce plus furnace outer refining process plus after molten iron pre-desulfurization operation, steel-making before steel-making。Molten iron pre-desulfurization has become one of indispensable operation of optimization metallurgical production process, and it can reduce continuous casting steel machine | and the coke ratio of ironmaking and raising productivity ratio, reduce lime consumption amount and the quantity of slag etc. of steel-making, thus reducing production cost。
The desulfuring spray gun that existing blowing process adopts, mixing power direction is single, mixing power is not enough, causing some desulfurization powders, not participate in desulfurization and just floated in slag, some desulfurization products float insufficient still in molten iron, do not have the effect of desulfurization, mixing power is weak, causes that desulphurization reaction speed is slow, and desulfuration efficiency is low。
Utility model content
This utility model is intended to overcome the deficiencies in the prior art part to provide a kind of simple in construction, and mixing power is strong, the efficient molten iron desulfuring spray gun that desulfuration efficiency is high。
For solving above-mentioned technical problem, this utility model is realized in。
A kind of efficiently molten iron desulfuring spray gun, it includes gun body；Described gun body includes core jet pipe, air storage chamber and gas distribution bin；Described core jet pipe is through air storage chamber, and is secured to connect；It is provided with Gas injection pipe in described gas distribution bin；The upper port of described Gas injection pipe communicates with air storage chamber, and its lower port communicates with gas distribution bin；Sidewall in described gas distribution bin is provided with several Gas injection mouth；External stability in described gas distribution bin is provided with refractory material protective layer。
As a kind of preferred version, this utility model is fixed with refractory material protection set in the bottom of described core jet pipe。
Further, the bottom of gun body described in the utility model is semi-circular structure。
This utility model Gas injection pipe by being provided with in gas distribution bin, one runner is to blowing desulfurization powder in molten iron, carrier gas adopts nitrogen (or other noble gas), another runner is blown into nitrogen (or other noble gas) by the Gas injection pipe of gas distribution bin in molten iron simultaneously, improve mixing power, make Sulfur Content in Hot Iron weight content be reduced to target call。Converter terminal tapping sulfur is less than less than 0.004% target, by acquirement desulfurization degree >=90% that ferrum water-magnesium desulfurization is employed new technology, return sulfur low, take off damage≤24kg/t ferrum, temperature drop≤26 DEG C, desulfurization cycle≤35min, and spray gun, the slag rake effect such as life-span raising, achieve ferrum water-magnesium desulfurization efficient, meet clean steel and produce needs。
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail。Protection domain of the present utility model is not only limited to the statement of following content。
Fig. 1 is overall structure schematic diagram of the present utility model。
In figure: 1, core jet pipe；2, air storage chamber；3, gas distribution bin；4, Gas injection pipe；5, Gas injection mouth；6, refractory material protective layer；7, refractory material protection set。
Detailed description of the invention
As it can be seen, efficient molten iron desulfuring spray gun, including gun body；Described gun body includes core jet pipe 1, air storage chamber 2 and gas distribution bin 3；Described core jet pipe 1 is through air storage chamber 2, and is secured to connect；It is provided with Gas injection pipe 4 in described gas distribution bin 3；The upper port of described Gas injection pipe 4 communicates with air storage chamber 2, and its lower port communicates with gas distribution bin 3；Sidewall in described gas distribution bin 3 is provided with several Gas injection mouth 5；External stability in described gas distribution bin 3 is provided with refractory material protective layer 6。
This utility model is fixed with refractory material protection set 7 in the bottom of described core jet pipe 1。The bottom of gun body described in the utility model is semi-circular structure。
Compared with tradition single channel hot metal pretreatment spray gun, it is to avoid the shortcoming that carrier gas mixing direction narrow scope, stirring intensity are not enough, it is achieved that 360 degree of comprehensive stirrings in molten iron, stirring intensity doubles。
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations。All within spirit of the present utility model and principle, any amendment of making, equivalent replacement, improvement etc., should be included within protection domain of the present utility model。
Claims (3)
1. an efficient molten iron desulfuring spray gun, including gun body；It is characterized in that, described gun body includes core jet pipe (1), air storage chamber (2) and gas distribution bin (3)；Described core jet pipe (1) is through air storage chamber (2), and is secured to connect；It is provided with Gas injection pipe (4) in described gas distribution bin (3)；The upper port of described Gas injection pipe (4) communicates with air storage chamber (2), and its lower port communicates with gas distribution bin (3)；Sidewall described gas distribution bin (3) is provided with several Gas injection mouth (5)；External stability described gas distribution bin (3) is provided with refractory material protective layer (6)。
2. efficient molten iron desulfuring spray gun according to claim 1, it is characterised in that: refractory material protection set (7) it is fixed with in the bottom of described core jet pipe (1)。
3. efficient molten iron desulfuring spray gun according to claim 2, it is characterised in that: the bottom of described gun body is semi-circular structure。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620001790.XU CN205329103U (en) | 2016-01-04 | 2016-01-04 | High -efficiency molten iron desulphurization spraying gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620001790.XU CN205329103U (en) | 2016-01-04 | 2016-01-04 | High -efficiency molten iron desulphurization spraying gun |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205329103U true CN205329103U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201620001790.XU Active CN205329103U (en) | 2016-01-04 | 2016-01-04 | High -efficiency molten iron desulphurization spraying gun |
Country Status (1)
| Country | Link |
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| CN (1) | CN205329103U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702071A (en) * | 2016-12-27 | 2017-05-24 | 营口东邦冶金设备耐材有限公司 | KR powder spraying melt desulfuration mixer |
-
2016
- 2016-01-04 CN CN201620001790.XU patent/CN205329103U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106702071A (en) * | 2016-12-27 | 2017-05-24 | 营口东邦冶金设备耐材有限公司 | KR powder spraying melt desulfuration mixer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 115100 Liaoning Yingkou City, Dashiqiao City, Dashiqiao City Development Zone Yingkou Dong Bang environmental protection Polytron Technologies Inc Patentee after: Yingkou Dong Bang environmental protection Polytron Technologies Inc Address before: 115100 Liaoning city of Yingkou province Dashiqiao City Development Zone Yingkou DONGBANG metallurgical refractories Co Ltd Patentee before: Yingkou Dongbang Metallurgical Refractory Co., Ltd. |