CN221117491U - Structure for secondary dust removal around converter - Google Patents
Structure for secondary dust removal around converter Download PDFInfo
- Publication number
- CN221117491U CN221117491U CN202322788249.0U CN202322788249U CN221117491U CN 221117491 U CN221117491 U CN 221117491U CN 202322788249 U CN202322788249 U CN 202322788249U CN 221117491 U CN221117491 U CN 221117491U
- Authority
- CN
- China
- Prior art keywords
- converter
- dust
- suction
- platform
- hood
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000428 dust Substances 0.000 title claims abstract description 178
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 14
- 239000010959 steel Substances 0.000 claims description 14
- 238000000576 coating method Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- 238000004873 anchoring Methods 0.000 claims description 6
- 239000011248 coating agent Substances 0.000 claims description 5
- 229910001018 Cast iron Inorganic materials 0.000 claims description 3
- 230000009970 fire resistant effect Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000005272 metallurgy Methods 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 description 20
- 238000000034 method Methods 0.000 description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 229910052742 iron Inorganic materials 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000003973 paint Substances 0.000 description 4
- 238000010079 rubber tapping Methods 0.000 description 4
- 238000009834 vaporization Methods 0.000 description 4
- 230000008016 vaporization Effects 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000011819 refractory material Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000012720 thermal barrier coating Substances 0.000 description 1
Landscapes
- Carbon Steel Or Casting Steel Manufacturing (AREA)
Abstract
The utility model relates to the technical field of metallurgy, and discloses a structure for secondary dust removal around a converter, which comprises the following components: a furnace front gate, a furnace rear gate, a protection plate, a converter upper platform, a furnace front top dust-absorbing and removing cover, a platform top dust-absorbing and removing cover and a side dust-absorbing and removing pipe; a converter accommodating space is formed among the front gate, the rear gate and the protective plate, and a platform above the converter is positioned on the upper side of the converter accommodating space; the furnace front top dust suction cover is arranged at the side of the furnace front gate; the platform top suction dust hood is fixed on the platform above the converter and is arranged adjacent to the rear door of the converter; the side suction dust removing pipe is positioned on the protective plate. The secondary dust removal structure around the converter greatly improves the working environment and reduces the energy consumption.
Description
Technical Field
The utility model relates to the technical field of metallurgy, in particular to a structure for secondary dust removal around a converter.
Background
When the converter is in production, when the hot metal ladle is used for adding iron to the converter, the scrap steel trough is used for adding scrap steel to the converter, steel tapping from the converter and other production operations, a large amount of smoke dust can be instantaneously generated, smoke overflowed from a smoke hood port is also present in the production process, and a large amount of smoke generated by the converter in the production process is dissipated into the atmosphere through a factory building, so that serious pollution is caused to the environment, and the secondary dust removal of the converter is mainly arranged for treating the smoke dust. With the implementation of the new environmental protection method of 1 month and 1 day in 2015 and the opinion about the ultra-low emission of the steel industry of the advanced implementation issued by the ecological environment department [ 2019 ] 35, the requirement on environmental protection is higher and higher. If the secondary dedusting effect of the converter is poor, smoke dust in a workshop is serious, and even a tertiary dedusting system is required to be arranged to ensure environmental protection emission.
According to the simulated trend of the flue gas, the top suction dust removal effect is better than the side suction dust removal effect, but the area near the converter consists of a side protection plate, a platform plate and a front door, a dust removal cover is arranged in front of the converter in the conventional design and is influenced by the process arrangement of the platform plate and an upper platform, and the side suction dust removal effect is still limited when the side protection plate is arranged around.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the background art.
The utility model provides a structure for secondary dust removal around a converter, which comprises the following components:
A furnace front gate, a furnace rear gate, a protection plate, a converter upper platform, a furnace front top dust-absorbing and removing cover, a platform top dust-absorbing and removing cover and a side dust-absorbing and removing pipe;
The protection plate is fixedly arranged, a converter accommodating space is formed among the front gate, the rear gate and the protection plate, and a platform above the converter is positioned on the upper side of the converter accommodating space;
the furnace front top dust suction cover is arranged beside the furnace front gate;
the platform top suction dust hood is fixed on the platform above the converter and is arranged adjacent to the rear gate of the converter;
the dust collection opening of the side-suction dust collection pipe is arranged on the protection plate.
As some sub-aspects of the above technical solution, the front top suction dust removing hood is transversely erected above the converter accommodating space, and the front top suction dust removing hood includes a front open portion located above the converter accommodating space.
As some sub-schemes of the above technical scheme, the front opening part is positioned between the converter upper platform and the front gate, and two ends of the front opening part are respectively close to the side surface of the converter upper platform and the side surface of the front gate.
As some sub-versions of the above-described solution, the inner side surface of the stokehole opening portion is coated with a refractory heat-insulating coating.
As some sub-schemes of the technical scheme, the dust collection opening of the platform top suction dust hood is arranged on the platform above the converter, and the platform top suction dust hood is connected with the platform above the converter.
As some sub-schemes of the technical scheme, the material of the protective plate is cast iron plate or sprayed steel plate.
As some sub-aspects of the above technical solution, the material of the protective plate is a refractory material.
As some sub-schemes of the technical scheme, anchoring parts are arranged in the furnace front top dust suction hood, the platform top dust suction hood or the side dust suction pipe, the furnace front top dust suction hood and the side dust suction pipe are connected with the protection plate through the anchoring parts, and the surfaces of the anchoring parts are provided with fire-resistant heat-insulating coatings.
As some sub-schemes of the technical scheme, the protection plate is also provided with an avoidance hole, and the side suction dust removal pipe penetrates through the avoidance hole to be connected into the secondary dust removal system.
As some sub-schemes of the technical scheme, the number of the side suction dust removing pipes is two, the side suction dust removing pipes are arranged on the protection plate, and the electric valves are arranged on the furnace front top suction dust removing cover, the platform top suction dust removing cover and the side suction dust removing pipes.
The utility model has the beneficial effects that:
1. dust removal hoods and dust removal pipelines are arranged around and in front of the converter, and when a front gate and a rear gate of the converter are closed, dust is removed by the dust removal pipelines, so that the working environment of a main platform is improved;
2. The upper platform of the converter is provided with holes, the top suction dust hood is arranged above the converter, and when the front gate and the rear gate of the converter are opened, the dust hood and the flue gas travel upwards in a consistent direction, so that the dust removal effect is ensured, the working environment of the high-rise platform is improved, and the labor intensity is reduced;
3. When the front gate/rear gate of the furnace needs to be opened in the working procedure operation, the dust removal arrangement mode of roof suction and side suction of surrounding protection boards on the front and the platform of the furnace increases the dust removal effect more effectively, reduces the three times of dust removal pressure of a workshop, reduces the total energy consumption of the workshop, improves the environment in the whole workshop, and particularly improves the working environment of crane workers in front of the converter;
4. When other auxiliary working procedures are produced in the converter, the electric valve on the nearby dust removing pipeline can be opened or combined to carry out dust removing treatment, so that green production is realized by utilizing the existing dust removing facilities, and the working environment of workers is improved.
5. According to the requirements of the converter production process, the dust removal combination modes of different positions and modes can meet the requirements of the converter process dust removal, and the air quantity of the secondary dust removal system is effectively utilized and distributed through reasonable process layout, so that the energy consumption is reduced, and the production is green.
Drawings
The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic top view of a secondary dedusting structure around a converter;
Fig. 2 is a schematic view of one of the end faces of a secondary dust removal structure around a converter.
In the accompanying drawings: 1-a furnace rear gate; 2-a protective plate; 3-a platform top suction dust removal cover; 4-a dust removal pipeline; 5-side dust removing pipe; 6-a furnace front top dust suction hood; 7-a stokehole gate; 8-a vaporization flue main body device and auxiliary devices; 9-a refractory thermal barrier coating; 10-electric valve.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.
In the description of the present utility model, the meaning of a number is not quantitative, and the meaning of a number is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated. Appear throughout and/or represent three parallel schemes, e.g., a and/or B represent a scheme that is met by a, a scheme that is met by B, or a scheme that is met by a and B simultaneously.
In the description of the utility model, there are phrases containing a plurality of parallel features, where the phrase defines a feature that is closest, for example: b, C provided on A, E connected with D, which means that B is provided on A, E connected with D, and C is not limited; but for the words representing the relationship between features, such as "spaced arrangement", "annular arrangement", etc., do not belong to this category. The phrase preceded by a "homonym" indicates that all features in the phrase are defined, e.g., B, C, D, all disposed on a, and B, C and D are both disposed on a. The sentence of the subject is omitted, and the omitted subject is the subject of the previous sentence, namely, B is arranged on A and comprises C, B is arranged on A, and A comprises C.
In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.
Embodiments of the present utility model are described below with reference to fig. 1 to 2.
The embodiment relates to a structure for secondary dust removal around a converter so as to more effectively solve the problem of secondary dust removal smoke in a workshop and achieve ultra-low standard emission.
A structure for secondary dedusting around a converter, comprising:
a front gate 7, a rear gate 1, a protection plate 2, a platform above the converter, a top dust-absorbing and removing cover 6, a top dust-absorbing and removing cover 3 and a side dust-absorbing and removing pipe 5;
the protection plate 2 is fixedly arranged, a converter accommodating space is formed among the front gate 7, the rear gate 1 and the protection plate 2, and a platform above the converter is positioned on the upper side of the converter accommodating space;
The furnace front top dust suction hood 6 is arranged beside the furnace front gate 7;
the platform top suction dust hood 3 is fixed on a platform above the converter and is arranged adjacent to the rear door 1;
The dust suction opening of the side dust suction pipe 5 is arranged on the protection plate 2.
The secondary dust removing structure around the converter is simultaneously provided with the front top dust removing cover 6, the platform top dust removing cover 3 and the side dust removing pipe 5, when the hot metal ladle charges iron to the converter, the scrap steel trough charges scrap steel to the converter, the converter tapping and other procedures produce smoke dust or overflows smoke dust from a smoke hood port, the escape of the smoke dust is greatly reduced through the front top dust removing cover 6, the platform top dust removing cover 3 and the side dust removing pipe 5, the working environment of workers is improved, the energy consumption is reduced, and the three dust removing pressure of workshops is lightened. In addition, the device has the advantages of simple structure, easy manufacture, high operation reliability, reduced energy consumption and good use effect.
According to the requirements of actual production environment, a dust hood can be further arranged on the side dust suction pipe 5 so as to increase the coverage range of the smoke suction. In addition, further side dust suction pipes 5 can be arranged on the two protection boards 2, so that the effect of sucking smoke can be further improved.
The front top dust absorbing and removing cover 6 is transversely erected above the converter accommodating space, and the front top dust absorbing and removing cover 6 comprises a front opening part positioned above the converter accommodating space. The furnace front top dust-absorbing and removing cover 6 is erected above the converter accommodating space, the furnace front top dust-absorbing and removing cover 6 can be conveniently fixed on the upper side of the protection plate 2, and meanwhile, the escape of smoke between the furnace front top dust-absorbing and removing cover 6 and the protection plate 2 is reduced. And only the front opening part above the converter accommodating space is arranged, so that the suction port of the front top dust suction and removal cover 6 can be enlarged as much as possible, and the flue gas can be sucked as much as possible.
The open part of the furnace front is positioned between the platform above the converter and the furnace front gate 7, and two ends of the open part of the furnace front are respectively close to the side surface of the platform above the converter and the side surface of the furnace front gate 7. The open front part is positioned between the converter upper platform and the front gate 7, and two ends of the open front part are respectively close to the side surface of the converter upper platform and the side surface of the front gate 7, so that a gap between the converter upper platform and the front gate 7 can be closed, and flue gas can be greatly prevented from flowing to the upper platform from the gap. The width of the stokehold roof dust removal hood 6 is set as large as possible to reduce the escape of flue gas to remove more flue gas. The width of the stokehole top dust removing cover 6 is set as large as possible, and the precondition accords with the limit of charging molten iron for lifting molten iron by a crane. The height direction of the front opening part is as high as possible, so that the escape of smoke is further reduced, more smoke is absorbed, and the rotary position of the converter and the disassembly and assembly space of the vaporization flue are avoided.
The inner side surface of the open front part is coated with a refractory heat-insulating coating 9. The refractory heat-insulating coating 9 is coated in the open part of the furnace front, so that the service life of the furnace front top dust suction hood 6 can be prolonged.
The dust collection opening of the platform top suction dust hood 3 is arranged on the platform above the converter, and the platform top suction dust hood 3 is connected with the platform above the converter. The holes are formed in the upper platform of the converter in the coverage area of the platform top suction dust hood 3, and flue gas generated during production of the converter enters the top suction dust hood along the dust collection opening of the platform top suction dust hood 3, so that escape and external scattering of the flue gas can be effectively reduced.
The material of the protection board 2 is cast iron plate or sprayed steel plate. Or the material of the protective plate 2 is a refractory material. The sprayed steel plate is the steel plate with fireproof or high temperature resistant paint sprayed on the surface. The fireproof paint or the high temperature resistant paint can be common paint existing in the market.
The furnace front top dust removing cover 6, the platform top dust removing cover 3 or the side dust removing pipe 5 are respectively internally provided with an anchor, the furnace front top dust removing cover 6 and the side dust removing pipe 5 are respectively connected with the protection plate 2 through the anchors, and the surfaces of the anchors are provided with a fireproof heat-insulating coating 9.
The protection board 2 is also provided with an avoidance hole, and the side suction dust removal pipe 5 passes through the avoidance hole and is connected with a secondary dust removal system. The avoidance holes are formed in the protection plate 2 for the dust removing pipelines 4 to pass through, so that the arrangement difficulty of the dust removing pipelines 4 can be reduced. In addition, the platform top suction dust hood 3 and the stokehold top suction dust hood 6 are also connected into a secondary dust removal system through the dust removal pipeline 4. And the electric valves 10 are arranged on the furnace front top dust suction hood 6, the platform top dust suction hood 3 and the side dust suction dust removal pipes 5 so as to conveniently control the opening and closing of each dust suction hood/dust removal pipe.
In the structure for secondary dust removal around the converter, a front gate 7 and a rear gate 1 travel on respective rails to form a relatively closed converter space together with a protection plate 2. The converter is operated by opening or closing the front gate 7 and the rear gate 1 according to different working conditions. The side suction dust removing pipe 5 is arranged on the side surface of the protective plate 2 and is connected into a secondary dust removing system through the dust removing pipeline 4; the furnace front top dust absorbing and removing cover 6 is arranged at one side of the converter space near the furnace front gate 7. The secondary dust removal system comprises a main body device of the vaporization flue and an auxiliary device 8 for treating the flue gas. The size arrangement of the furnace front top dust removing cover 6 is combined with the arrangement of the main body equipment of the vaporization flue and the auxiliary equipment 8, so that the rationality of the process arrangement is ensured.
The specific process of using the secondary dust removal structure is as follows: when the procedures of adding iron to the converter by the hot metal ladle, adding steel scrap to the converter by the steel scrap trough and the like are carried out, the front gate 7 is opened, the electric valve 10 of the front top dust suction hood 6 is opened, the electric valve 10 of the platform top dust suction hood 3 is opened, the electric valve 10 of the side dust suction pipe 5 is closed, the two top suction works simultaneously, most of smoke dust of the iron and steel scrap trough is pumped away, and a small part of the dust which is not pumped away by the front top dust suction hood 6 is diffused into the protection plate 2 around the converter and is pumped away by the platform top dust suction hood 3 above the platform above the converter;
When the converter is in a tapping working condition, the electric valve 10 of the side suction dust removing pipe 5 on the side surface of the protection plate 2 around the converter after the converter is opened, the electric valve 10 of the top suction dust removing cover above the platform above the converter is opened, the electric valve 10 of the top suction dust removing cover 6 in front of the converter is closed, the side suction and the top suction behind the converter work simultaneously, so that most of the smoke dust in tapping is removed, and a small part of the side suction dust removing pipe 5 on the side surface of the protection plate 2 around the converter is not removed, and the smoke dust is diffused into the protection plate 2 around the converter and is removed through the platform top suction dust removing cover 3 above the platform above the converter.
When the converter front slag is subjected to working procedures, before the working procedures are carried out, the electric valve 10 of the front top dust suction hood 6 is opened, the electric valve 10 of the platform top dust suction hood 3 is opened, the electric valve 10 on the side dust suction pipe 5 on the protection plate 2 around the converter behind the converter is closed, the two top suction works simultaneously, and a small part of dust which is not removed by the front top dust suction hood 6 is diffused into the protection plate 2 around the converter and is pumped out through the platform top dust suction hood 3;
When slag is discharged after the converter is subjected to working procedures, an electric valve 10 on a side suction dust removing pipe 5 of a protection plate 2 around the converter after the converter is opened, an electric valve 10 of a platform top suction dust removing cover 3 of a platform above the converter is opened, an electric valve 10 of a front top suction dust removing cover 6 of the converter is closed, side suction (the side suction dust removing pipe 5) and rear top suction (the platform top suction dust removing cover 3) work simultaneously, and a small part of dust which is not removed by the side suction dust removing pipe 5 on the protection plate 2 around the converter is diffused into the protection plate 2 around the converter and is sucked through the platform top suction dust removing cover 3 of the platform above the converter;
In the structure for secondary dust removal around the converter of the embodiment, the electric valves 10 are arranged in each dust hood or dust removal pipe, and when other auxiliary operations generate smoke dust around the converter, the opening and closing conditions of the electric valves 10 are freely combined according to specific conditions, and each electric valve 10 is opened or closed for dust removal treatment, so that the dust removal effect is realized.
While the preferred embodiment of the present utility model has been described in detail, the utility model is not limited to the embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the utility model, and these equivalent modifications and substitutions are intended to be included in the scope of the utility model as defined in the appended claims.
Claims (10)
1. The utility model provides a structure around converter secondary dust removal which characterized in that: comprising the following steps:
A front gate (7), a rear gate (1), a protection plate (2), a converter upper platform, a front top suction dust hood (6), a platform top suction dust hood (3) and a side suction dust pipe (5);
The protection plate (2) is fixedly arranged, a converter accommodating space is formed among the front gate (7), the rear gate (1) and the protection plate (2), and a platform above the converter is positioned on the upper side of the converter accommodating space;
The furnace front top suction dust hood (6) is arranged beside a furnace front gate (7);
the platform top suction dust hood (3) is fixed on the platform above the converter and is arranged adjacent to the rear door (1);
the dust collection opening of the side dust collection and removal pipe (5) is arranged on the protection plate (2).
2. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the front top suction dust hood (6) is transversely erected above the converter accommodating space, and the front top suction dust hood (6) comprises a front opening part positioned above the converter accommodating space.
3. A structure for secondary dedusting around a converter as claimed in claim 2, wherein: the open part in front of the furnace is positioned between the platform above the converter and the front gate (7), and two ends of the open part in front of the furnace are respectively close to the side surface of the platform above the converter and the side surface of the front gate (7).
4. A structure for secondary dedusting around a converter as claimed in claim 2, wherein: the inner side surface of the open part of the furnace front is coated with a fire-resistant heat-insulating coating (9).
5. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the dust collection opening of the platform top suction dust hood (3) is arranged on the platform above the converter, and the platform top suction dust hood (3) is connected with the platform above the converter.
6. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the material of the protective plate (2) is cast iron plate or sprayed steel plate.
7. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the material of the protection plate (2) is fireproof material.
8. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the furnace front top dust suction hood (6), the platform top dust suction hood (3) or the side dust suction and removal pipe (5) are internally provided with anchoring parts, the furnace front top dust suction hood (6) and the side dust suction and removal pipe (5) are connected with the protection plate (2) through the anchoring parts, and the surfaces of the anchoring parts are provided with fire-resistant heat-insulating coatings (9).
9. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the protection board (2) is also provided with an avoidance hole, and the side suction dust removal pipe (5) passes through the avoidance hole and is connected with a secondary dust removal system.
10. A structure for secondary dedusting around a converter as claimed in claim 1, wherein: the number of the side suction dust removing pipes (5) is one or two, the side suction dust removing pipes (5) are arranged on the protection plate (2), and the electric valves (10) are arranged on the furnace front top suction dust removing cover (6), the platform top suction dust removing cover (3) and the side suction dust removing pipes (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322788249.0U CN221117491U (en) | 2023-10-17 | 2023-10-17 | Structure for secondary dust removal around converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322788249.0U CN221117491U (en) | 2023-10-17 | 2023-10-17 | Structure for secondary dust removal around converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221117491U true CN221117491U (en) | 2024-06-11 |
Family
ID=91337816
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322788249.0U Active CN221117491U (en) | 2023-10-17 | 2023-10-17 | Structure for secondary dust removal around converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221117491U (en) |
-
2023
- 2023-10-17 CN CN202322788249.0U patent/CN221117491U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110306003A (en) | Cast house totally enclosed type dust excluding hood before a kind of State of Blast Furnace | |
| CN221117491U (en) | Structure for secondary dust removal around converter | |
| CN210420015U (en) | Blast furnace front cast house totally enclosed dust excluding hood | |
| CN201969720U (en) | Smoke gathering device for ladle refining furnace | |
| CA1157263A (en) | Blast furnace cast house pollutant suppression | |
| CN207828338U (en) | A kind of detachable dust excluding hood of blast furnace iron notch | |
| CN216404443U (en) | Metallurgical equipment desulfurization system spray gun dust removal sealing device | |
| CN216073885U (en) | Masonry fixing device for taphole | |
| CN112410500B (en) | Smoke and dust anti-overflow device, movable smoke cover and converter steelmaking equipment | |
| CN210796513U (en) | Blast furnace foundation gas leakage plugging structure | |
| CN114134273A (en) | Dust hood for blast furnace casting house | |
| CN106807930A (en) | A kind of large ladle furnace hot repair is tumbled a dust collection method | |
| CN218270261U (en) | Guiding device suitable for metallurgical furnace melt discharge | |
| CN220564660U (en) | Novel refining furnace unloading pipe gas shutoff device | |
| CN220432867U (en) | Stepped air-cooled sealing cover plate for cast house | |
| CN2673879Y (en) | Furnace wall carbon oxygen spray gun for novel super high power electric steel-smelting furnace | |
| CN211255978U (en) | Iron-adding aerial fog dust-suppression fire-control device in front of converter | |
| CN219972362U (en) | Device for preventing nitrogen and hydrogen increase in LF refining process | |
| CN114713811B (en) | Ferroalloy casting smoke dust recycling device and recycling method | |
| CN214881619U (en) | Device for preventing gas leakage at oxygen lance port | |
| CN219560861U (en) | Movable dust hood for molten iron ladle | |
| CN211400822U (en) | Remote control gas seal device for smoke dust of electric arc furnace | |
| CN215177026U (en) | Ferroaluminum is smelted and is used fire prevention subassembly and gas cleaning system | |
| CN217709532U (en) | Anti-splashing residual iron discharging device for blast furnace | |
| CN210683825U (en) | Device for preventing slag iron from splashing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |