CN217948184U - Air curtain dust sealing device for ladle argon blowing station - Google Patents
Air curtain dust sealing device for ladle argon blowing station Download PDFInfo
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- CN217948184U CN217948184U CN202123206525.5U CN202123206525U CN217948184U CN 217948184 U CN217948184 U CN 217948184U CN 202123206525 U CN202123206525 U CN 202123206525U CN 217948184 U CN217948184 U CN 217948184U
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- ladle
- argon blowing
- blowing station
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Abstract
The utility model belongs to the field of environmental pollution prevention and control in a steel-making workshop in the metallurgical industry, in particular to a gas curtain dust sealing device of a ladle argon blowing station, which comprises a centrifugal fan, an air supply pipeline, a dust collection cover and a gas curtain generator for forming an air curtain above a ladle to prevent smoke dust from overflowing the argon blowing station; the centrifugal fan is connected with the air curtain generator through an air supply pipeline; the air curtain generator and the dust hood are both arranged above the ladle, and the dust hood is positioned on the inner side of the air curtain formed by the air curtain generator. The utility model adopts the method of air curtain dust sealing to quickly form an invisible air curtain around the dust hood above the steel ladle, completely and hermetically cover the flue gas flow generated during the desulfurization production, isolate the loss heat dissipation flue gas diffusion channel, improve the smoke dust collecting efficiency, improve the collecting effect of the dust hood, improve the surrounding environment of a workshop and provide health guarantee for field workers; and the method has the advantages of low investment, short period, safety and reliability, and is suitable for new construction or reconstruction projects.
Description
Technical Field
The utility model belongs to a metallurgical industry steelmaking workshop internal environment pollution prevention and cure field, concretely relates to ladle argon blowing station gas curtain seals dirt device.
Background
The argon blowing of the ladle is an important means for the external refining of the molten steel, the gas with a certain flow rate is blown from the bottom of the ladle, so that the molten steel has uniform components and uniform temperature, and the bubbles can promote inclusions in the steel to float upwards, thereby being beneficial to purifying the quality of the molten steel. During the production process of the ladle argon blowing station, a large amount of smoke is generated during the technological operations of ladle argon blowing stirring, blanking and the like, and the smoke components are mainly ferric oxide powder and the like. If the dust removal system has limited suction capacity, a large amount of high-temperature smoke is easily dispersed in a workshop, so that the regional working environment of the argon blowing station is deteriorated, and the production safety and the personnel health are seriously threatened.
At present, the commonly adopted solution is to improve the effective trapping rate of the smoke dust through reasonable matching of the air volume of a fan and the optimized design of a dust collecting cover above a ladle. The methods have the defects that the original dust removal system needs to be greatly modified, the primary investment amount is high, the modification period is long, and the influence on the existing production is large.
Disclosure of Invention
In order to overcome the not enough of above-mentioned prior art existence, the utility model aims at providing a ladle blows argon station gas curtain and seals dirt device can solve in the ladle argon blowing production process, the smoke and dust loss problem of the unable entrapment of flue gas dust pelletizing system and processing when especially blowing argon operation.
In order to achieve the purpose, the technical scheme of the utility model is that the air curtain dust sealing device for the argon blowing station of the ladle comprises a centrifugal fan, an air supply pipeline, a dust collection cover and an air curtain generator which is used for forming an air curtain above the ladle so as to prevent smoke dust from overflowing the argon blowing station; the centrifugal fan is connected with the air curtain generator through an air supply pipeline; the air curtain generator and the dust hood are both arranged above the ladle, and the dust hood is positioned on the inner side of an air curtain formed by the air curtain generator.
Furthermore, the air curtain generator is arranged around the dust hood, and a certain number of air supply holes are formed in the bottom of the air curtain generator at intervals along the circumferential direction.
Further, the air curtain generator is in a square ring shape or a circular ring shape.
Furthermore, the air supply holes are circular holes or strip-shaped holes.
Further, the centrifugal fan is arranged on a workshop terrace beside the argon blowing station or a steel structure platform above the steel ladle treatment position.
Further, the centrifugal fan is driven by a variable frequency motor.
Furthermore, the dust hood is in a horn shape, and the large opening of the dust hood faces downwards, and the small opening faces upwards and is connected with the dust outlet pipe.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) The utility model adopts the gas curtain dust sealing method to quickly form a continuous invisible gas curtain around the dust hood above the steel ladle, completely seals and covers the flue gas flow generated during the desulfurization production, isolates the loss heat dissipation flue gas diffusion channel, improves the smoke dust collecting efficiency, improves the collecting effect of the dust hood, improves the surrounding environment of a workshop, and provides health guarantee for field workers;
(2) The utility model adopts the air curtain dust sealing method, which is simple, safe and reliable, and because the compressed air is adopted as the working medium, the potential danger of explosion caused by mechanical water is avoided;
(3) The utility model discloses a gas curtain seals dirt method small investment, and the cycle is short, both applicable dust pelletizing system in newly-built ladle argon blowing station also is applicable to the technological transformation to current ladle argon blowing station system.
Drawings
In order to illustrate the embodiments of the present invention or the technical solutions in the prior art more clearly, the drawings used in the description of the embodiments or the prior art will be briefly introduced, obviously, the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural view of a gas curtain dust sealing device of a ladle argon blowing station provided by an embodiment of the utility model;
in the figure: 1. a centrifugal fan; 2. an air supply duct; 3. an air curtain generator; 4. a ladle; 5. a dust collection cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature; in the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1, an embodiment of the present invention provides a gas curtain dust sealing device for a ladle argon blowing station, which includes a centrifugal fan 1, a blast pipe 2, a dust collecting cover 5, and a gas curtain generator 3 for forming an air curtain above a ladle 4 to prevent smoke dust from overflowing the argon blowing station; the centrifugal fan 1 is connected with the air curtain generator 3 through an air supply pipeline 2; the air curtain generator 3 and the dust hood 5 are both arranged above the ladle 4, and the dust hood 5 is positioned at the inner side of the air curtain formed by the air curtain generator 3. This embodiment forms a continuous gas curtain barricade all around the dust cage 5 of ladle 4 top through gas curtain generator 3, can cover the whole of flue gas stream that produce during desulfurization production, blocks its loss passageway that rises to form relative inclosed environment, the flue gas can be taken away by the department of induced drafting from the dust cage 5 of ladle 4 top smoothly, improves the entrapment efficiency of smoke and dust, has improved the workshop surrounding environment, provides health guarantee for the on-the-spot workman.
In this embodiment, air curtain generator 3 encircles dust cage 5 arranges all around, air curtain generator 3's bottom is provided with the blast hole of a certain amount along the hoop interval, and the blast hole can be circular port or bar hole, and compressed air sprays and forms annular continuous air curtain barricade one from the blast hole to prevent that the smoke and dust of ladle 4 top from spilling over and blowing argon station region. The annular air curtain generator 3 is formed by welding a steel structure, can adopt a steel plate to form a square annular pipeline structure by welding, and can also adopt a circular steel pipe.
In this embodiment, the centrifugal fan 1 is arranged nearby on a workshop terrace beside an argon blowing station or on a steel structure platform above a treatment position of a steel ladle 4, and the centrifugal fan 1 provides compressed air with certain pressure and flow for the air curtain generator 3 through the air supply pipeline 2 to serve as an air source. Optimally, the centrifugal fan 1 is driven by a variable frequency motor. Generally, the treatment period of the ladle argon blowing station is 15min, and the working time of a dust removal system required for stirring, charging and the like is about 10min, so that the centrifugal fan 1 of the embodiment is preferably driven by a variable frequency motor, and energy conservation and consumption reduction can be realized. In the practical use of the device of the embodiment, in order to ensure good dust sealing effect, the outlet pressure of the centrifugal fan 1 is recommended to be not lower than 0.4-0.6 MPa.
In this embodiment, the dust collecting cover 5 is in a horn shape, and the large opening of the dust collecting cover 5 faces downward, and the small opening faces upward and is connected with the dust outlet pipe.
The process and the principle for solving the problem of smoke dust dissipation of the ladle argon blowing station by adopting the device of the embodiment are as follows: when technological operations such as ladle 4 stirring, unloading, open centrifugal fan 1 high-speed operation, compressed air gets into air curtain generator 3 through supply-air duct 2, the blast hole production that passes through air curtain generator 3 bottom has certain amount of wind, the jet stream of wind speed and wind pressure, form continuous intangible transparent protective screen one, can cover all seals the flue gas stream that produces during desulfurization production, block its loss passageway that rises, thereby form relative inclosed environment, guarantee that the flue gas is taken out smoothly from ladle 4 top dust cage 5 suction opening department.
The device of this embodiment is particularly useful for the transformation to current ladle argon-blowing station dust pelletizing system, is favorable to reducing the investment and shortening the transformation cycle, reduces the influence to current production simultaneously, also can be used for newly-built ladle argon-blowing station's dust pelletizing system.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a ladle argon blowing station gas curtain seals dirt device which characterized in that: comprises a centrifugal fan, an air supply pipeline, a dust collection cover and an air curtain generator which is used for forming an air curtain above a ladle to prevent smoke dust from overflowing an argon blowing station; the centrifugal fan is connected with the air curtain generator through an air supply pipeline; the air curtain generator and the dust collecting cover are arranged at a certain height above the ladle, the air curtain generator surrounds the dust collecting cover and is arranged at the periphery of the dust collecting cover, a certain distance is reserved between the air curtain generator and the dust collecting cover, a certain number of air supply holes are formed in the bottom of the air curtain generator at intervals in the circumferential direction, and the dust collecting cover is located on the inner side of an annular air curtain formed by the air curtain generator.
2. The ladle argon blowing station gas curtain dust sealing device as claimed in claim 1, characterized in that: the air curtain generator is in a square ring shape or a circular ring shape.
3. The gas curtain dust sealing device for the ladle argon blowing station as claimed in claim 1, characterized in that: the air supply hole is a circular hole or a strip-shaped hole.
4. The ladle argon blowing station gas curtain dust sealing device as claimed in claim 1, characterized in that: the centrifugal fan is arranged on a workshop terrace beside the argon blowing station or a steel structure platform above the steel ladle treatment position.
5. The gas curtain dust sealing device for the ladle argon blowing station as claimed in claim 1, characterized in that: the centrifugal fan is driven by a variable frequency motor.
6. The ladle argon blowing station gas curtain dust sealing device as claimed in claim 1, characterized in that: the dust collection cover is in a horn shape, and the large opening of the dust collection cover faces downwards, and the small opening of the dust collection cover faces upwards and is connected with the dust outlet pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123206525.5U CN217948184U (en) | 2021-12-20 | 2021-12-20 | Air curtain dust sealing device for ladle argon blowing station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123206525.5U CN217948184U (en) | 2021-12-20 | 2021-12-20 | Air curtain dust sealing device for ladle argon blowing station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217948184U true CN217948184U (en) | 2022-12-02 |
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ID=84208977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123206525.5U Active CN217948184U (en) | 2021-12-20 | 2021-12-20 | Air curtain dust sealing device for ladle argon blowing station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217948184U (en) |
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2021
- 2021-12-20 CN CN202123206525.5U patent/CN217948184U/en active Active
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