CN210151146U - Converter tertiary dust excluding hood and converter tertiary dust excluding system - Google Patents
Converter tertiary dust excluding hood and converter tertiary dust excluding system Download PDFInfo
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- CN210151146U CN210151146U CN201920519111.1U CN201920519111U CN210151146U CN 210151146 U CN210151146 U CN 210151146U CN 201920519111 U CN201920519111 U CN 201920519111U CN 210151146 U CN210151146 U CN 210151146U
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- hood
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- 239000000428 dust Substances 0.000 title claims abstract description 135
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 53
- 239000010959 steel Substances 0.000 claims abstract description 53
- 230000002146 bilateral effect Effects 0.000 claims description 8
- 239000003973 paint Substances 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 9
- 238000009434 installation Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000005453 pelletization Methods 0.000 abstract description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 9
- 239000000779 smoke Substances 0.000 description 7
- 229910052742 iron Inorganic materials 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 239000002994 raw material Substances 0.000 description 3
- 238000009628 steelmaking Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000001314 paroxysmal effect Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Abstract
The utility model discloses a converter cubic dust excluding hood and converter cubic dust pelletizing system. The converter tertiary dust hood comprises two lower hoods and an upper hood of a steel structure; wherein, lower cover includes: the lower cover comprises a lower cover front plate, a lower cover back plate, a lower cover side plate, a lower cover top plate and a skirt plate; the top plate of the lower cover is provided with a dust exhaust port; the skirt board is flush with the bottom end of the lower cover side board and extends backwards from the lower part of the rear end surface of the lower cover side board; the bottom end of the lower cover back plate is flush with the top end of the skirt plate; the upper shield is the structure of opening size convergent from bottom to top, and it includes: an upper cover front plate, an upper cover back plate, an upper cover side plate and an upper cover top plate; the upper cover is provided with a dust suction port; the two lower covers are arranged in parallel left and right, the upper cover is positioned at the tops of the two lower covers, and the bottom cover openings of the upper cover the dust exhaust openings of the two lower covers; the lower cover is provided with a lower lifting lug, and the upper cover is provided with an upper lifting lug. The converter three-time dust hood has the advantages of good dust removal effect, compact structure, convenience in transportation and installation, stable structure and low cost.
Description
Technical Field
The utility model relates to the technical field of steel, especially, relate to a converter cubic dust excluding hood and converter cubic dust pelletizing system.
Background
The steel industry plays an important role in national economy, can provide raw materials of all tools and mechanical equipment, and is a material basis for the production and expanded reproduction of the current society.
Flue gas discharged from a converter steelmaking workshop is one of the main sources of dust emission in the steel industry. Part of the smoke is dispersed in a workshop, so that the workshop operation environment and the health of workers are influenced; the other part of the smoke is discharged into the atmosphere through a vertical air shaft and a high-span skylight, so that a large amount of yellow smoke is intermittently emitted from the roof of the steel plant, and the environment is seriously polluted. In order to solve the problem, steel mills are basically matched with primary and secondary dust removal facilities of the converter. The primary dust discharge refers to a treatment process of cooling, purifying and recycling coal gas through high-temperature flue gas generated in the converter converting process by a flue, and a wet process or a semi-dry process is generally adopted. The secondary dust removal is a treatment process of collecting the flue gas in the production process of all converters including part of the flue gas overflowing from an inlet (a primary dust removal flue gas inlet) of a converter vaporization cooling flue by adopting a closed dust collecting hood, and discharging the flue gas into the atmosphere after bag dust removal. The secondary dust removal is an environmental protection measure adopted for making up the deficiency of the primary dust removal.
However, in recent years, with the improvement of modern steelmaking technology and the acceleration of molten iron charging speed of a converter and the aging of an original dedusting system, a large amount of paroxysmal flue gas still overflows from a furnace mouth in certain steelmaking processes, is difficult to be completely collected by the existing dedusting facilities, and has adverse effects on the health of operators and the environment.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a converter cubic dust excluding hood and converter cubic dust pelletizing system.
The utility model provides a converter tertiary dust hood which comprises two lower hoods and an upper hood of a steel structure; wherein,
the lower cover includes: the lower cover comprises a lower cover front plate, a lower cover back plate, a lower cover side plate, a lower cover top plate and a skirt plate; the top plate of the lower cover is provided with a dust exhaust port; the skirt board is flush with the bottom end of the lower cover side board and extends backwards from the lower part of the rear end face of the lower cover side board; the bottom end of the lower cover back plate is flush with the top end of the skirt plate;
the upper shield is the structure of opening size convergent from bottom to top, and it includes: an upper cover front plate, an upper cover back plate, an upper cover side plate and an upper cover top plate; the upper cover is provided with a dust suction port;
the two lower covers are arranged in parallel left and right, the upper cover is positioned at the tops of the two lower covers, and the bottom cover openings of the upper cover the dust exhaust openings of the two lower covers;
the lower cover is provided with a lower lifting lug, and the upper cover is provided with an upper lifting lug.
Furthermore, a lower cover front plate, a lower cover back plate, a lower cover side plate, a lower cover top plate and a skirt side plate of the lower cover are welded with a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks; h-shaped steel is welded at the connecting parts of the lower cover front plate, the lower cover back plate, the lower cover side plate and the lower cover top plate;
the upper cover front plate, the upper cover back plate, the upper cover side plate and the upper cover top plate of the upper cover are welded with a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks; h-shaped steel is welded at the connecting parts of the upper cover front plate, the upper cover back plate, the upper cover side plate and the upper cover top plate.
Further, in the two lower covers:
the dust exhaust port arranged on the lower cover top plate of the lower cover positioned on the left side is positioned between the right side of the lower cover top plate and the lower cover front plate;
the dust exhaust port arranged on the lower cover top plate of the lower cover positioned on the right side is positioned between the left side of the lower cover top plate and the lower cover front plate.
Furthermore, two groups of first lower lifting lugs are welded on the lower cover in a bilateral symmetry mode at the connecting part of the lower cover front plate and the lower cover top plate, and two groups of second lower lifting lugs are welded on the connecting part of the lower cover back plate and the lower cover side plate in a bilateral symmetry mode;
two groups of first upper lifting lugs are welded on the upper cover in a bilateral symmetry mode at the connecting part of the upper cover front plate and the upper cover top plate, and two groups of second upper lifting lugs are welded on the connecting part of the upper cover back plate and the upper cover side plate in a bilateral symmetry mode.
Further, the length of a bottom cover opening of the lower cover is 10-12 m, and the width of the bottom cover opening of the lower cover is 5.5-6.5 m; the height of the lower cover is 6-7 m, the length of the skirt is 3.5-4 m, and the height is 1.5-2 m; the length of a bottom cover opening of the upper cover is 11-13 m, the width of the bottom cover opening of the upper cover is 3-4 m, and the height of the upper cover is 3.5-4.5 m; the divergence angle of the upper cover is 40-45 degrees.
Furthermore, the distance between the transverse angle steel frameworks of the lower cover is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m;
the distance between the transverse angle steel frameworks of the upper cover is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m.
Further, paint layers are sprayed on the surfaces of the lower cover and the upper cover; and/or the converter tertiary dust hood also comprises a middle hood which is positioned between the bottom end of the upper hood and the two lower hood top plates and is used for sealing a gap between the bottom hood opening of the upper hood and the dust exhaust opening of the lower hood.
The utility model also provides a converter tertiary dust removal system, which comprises the converter tertiary dust hood; and the converter tertiary dust hood is arranged below the charging cross roof and is positioned above the converter.
Furthermore, the number of the converter three-time dust removal covers is two, and the two three-time dust removal covers are arranged on the two sides of the charging span beam in parallel.
Further, the height of the bottom end of the converter tertiary dust hood from the ground is 32-33 m.
The utility model provides a converter cubic dust excluding hood and converter cubic dust pelletizing system. The utility model provides a converter cubic dust excluding hood has following advantage:
1, consists of two lower covers and an upper cover. Wherein, two lower covers are used for guaranteeing mechanical strength when increasing the area of gathering dust, reduce the transportation degree of difficulty. The upper cover is arranged above the two lower covers, and the bottom openings of the upper cover are communicated with the dust exhaust openings of the two lower covers to form a dust removal channel.
2, the lower cover and the upper cover are both steel structures, so that the strength is high, the heat resistance is good, and the dust removal effect can be stably exerted above the converter for a long time.
And 3, lugs are arranged on the lower cover and the upper cover, so that the hoisting and installation are convenient.
4, the raw materials are easy to obtain, the processing is convenient, and the equipment cost is favorably reduced.
To sum up, the utility model provides a converter cubic dust excluding hood has that dust removal effect is good, compact structure, and the installation of conveniently transporting, structure and stable performance, advantage with low costs.
Drawings
Fig. 1 is a schematic front view of a converter tertiary dust hood provided by the present invention;
FIG. 2 is a schematic side view of a converter tertiary dust hood provided by the present invention;
FIG. 3 is a schematic structural view of a lower cover back plate in the three-time dust excluding cover of the converter provided by the present invention;
FIG. 4 is a side view of a lower cover of a converter tertiary dust hood provided by the present invention;
fig. 5 is a schematic top view of two lower covers in a converter tertiary dust hood provided by the present invention;
FIG. 6 is a schematic structural view of an upper cover front plate in a converter three-time dust hood provided by the present invention;
FIG. 7 is a schematic structural view of an upper cover side plate in a converter three-time dust hood provided by the present invention;
fig. 8 is a schematic structural view of an upper cover back plate in a converter tertiary dust excluding cover provided by the present invention;
fig. 9 is a schematic structural diagram of a converter tertiary dust removal system provided by the present invention.
Description of reference numerals:
1-lower cover
11-lower cover front plate
12-lower cover back plate
13-lower cover side plate
14-lower hood ceiling
15-skirt board
16-dust exhaust port
2-upper cover
21-front upper cover
22-Upper cover backboard
23-upper hood side panel
24-Top plate of upper cover
25-dust absorption port
Three-time dust removing cover of 100-converter
200-charging cross roof beam
Detailed Description
The inventor of the application finds that the reason for incomplete dust removal is mainly as follows:
when molten iron is added, the fire door in front of the furnace is in an open state, when a molten iron ladle is added and is withdrawn, a new chemical reaction occurs in the ladle to emit a large amount of smoke from a ladle port, and the ladle is gradually far away from a dog house, so that the smoke partially overflows and disperses in a workshop and enters the atmosphere through a vertical air shaft. In addition, when the molten iron mixing speed is increased or low-quality scrap steel doped with a large amount of hydrocarbon is added, the existing secondary dust removal capacity is limited, and a large amount of flue gas can overflow in front of the furnace.
Based on this, this application provides a converter cubic dust excluding hood, and this dust excluding hood is used for setting up in reinforced crossing roofing below, and is located the converter top. So as to solve the problem of the flue gas which can not be collected by secondary dust removal.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 8, the third converter dust excluding hood according to an embodiment of the present invention is shown, which includes two lower hoods 1 and an upper hood 2 of a steel structure; wherein,
the lower cover 1 includes: a lower cover front plate 11, a lower cover back plate 12, a lower cover side plate 13, a lower cover top plate 14 and a skirt plate 15; the lower cover top plate 14 is provided with a dust exhaust port 16; the skirt board 15 is formed by extending backwards from the lower part of the rear end surface of the lower cover side board 13, and is flush with the bottom end of the lower cover side board 13; the bottom end of the lower cover back plate 12 is level with the top end of the skirt edge plate 15;
the upper shield 2 is a structure with an opening tapered from bottom to top, and comprises: an upper cover front plate 21, an upper cover back plate 22, an upper cover side plate 23 and an upper cover top plate 24; the upper cover 2 is provided with a dust suction port 25; the dust suction opening 25 may be provided on any one of the upper cover front plate 21, the upper cover back plate 22, the upper cover side plate 23 and the upper cover top plate 24, which is provided on the upper cover front plate 21 in this embodiment;
the two lower covers 1 are arranged in parallel left and right, the upper cover 2 is positioned at the tops of the two lower covers 1, and the bottom cover openings of the upper cover 2 cover the dust exhaust openings 16 of the two lower covers 1;
the lower cover 1 is provided with a lower lifting lug, and the upper cover 2 is provided with an upper lifting lug.
The utility model provides a converter cubic dust excluding hood comprises two lower covers 1 and an upper shield 2. Wherein, two lower covers 1 are used for guaranteeing mechanical strength when increasing the area of gathering dust, reduce the transportation degree of difficulty. The upper cover 2 is arranged above the two lower covers 1, and the bottom openings of the upper cover 2 are communicated with the dust exhaust openings of the two lower covers 1 to form a dust removal channel. The lower cover 1 and the upper cover 2 are both steel structures, have high strength and good heat resistance, and are beneficial to stably exerting the dust removal effect above the converter for a long time. In addition, all install the lug on lower cover 1 and the upper shield 2, and then conveniently hoist and mount the installation. The lower cover 1 is provided with a skirt board 15, which functions as: the position of the cover opening of the lower cover can be conveniently positioned after the lower cover is contacted with fixed objects such as a wall surface and the like. The skirt board 15 may be integrally formed with the lower cover side plate 13 or may be welded separately.
As a preferred scheme of the utility model, a lower cover front plate 11, a lower cover back plate 12, a lower cover side plate 13, a lower cover top plate 14 and a skirt plate 15 of the lower cover 1 are welded with a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks; h-shaped steel is welded at the connecting parts of the lower cover front plate 11, the lower cover back plate 12, the lower cover side plate 13 and the lower cover top plate 14; a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks are welded on an upper cover front plate 21, an upper cover back plate 22, an upper cover side plate 23 and an upper cover top plate 24 of the upper cover 2; h-shaped steel is welded at the connecting parts of the upper cover front plate 21, the upper cover back plate 22, the upper cover side plate 23 and the upper cover top plate 24.
The dust hood is an H-shaped steel frame, an angle steel framework and a steel plate skin structure. Adopt H shaped steel frame and angle steel skeleton to consolidate, further promote the mechanical strength of dust excluding hood. Specifically, the steel plate may be a Q235B steel plate, and the angle steel may be an L75 angle steel.
Further, referring to fig. 5, in the two lower covers 1: a dust exhaust port 16 formed in the lower cover top plate 1 of the lower cover 1 positioned on the left side is positioned between the right side of the lower cover top plate 1 and the lower cover front plate 11; the dust exhaust port 16 opened in the lower cover top plate 1 of the lower cover 1 on the right side is located between the left side of the lower cover top plate 1 and the lower cover front plate 11. Therefore, on one hand, the processing of the lower cover top plate 14 is convenient, on the other hand, dust collection dead corners are not easy to form, and the dust removal efficiency is improved.
Because the lower cover 1 and the upper cover 2 of the dust excluding hood are both installed at the high position, the lower cover 1 and the upper cover 2 are both provided with lifting lugs for the convenience of hoisting, positioning and installing. Preferably, two groups of first lower lifting lugs are welded on the lower cover 1 in a bilateral symmetry mode at the connecting part of the lower cover front plate 11 and the lower cover top plate 14, and two groups of second lower lifting lugs are welded on the connecting part of the lower cover back plate 12 and the lower cover side plate 13 in a bilateral symmetry mode; two groups of first upper lifting lugs are symmetrically welded on the upper cover 2 in the left-right direction at the connecting part of the upper cover front plate 21 and the upper cover top plate 24, and two groups of second upper lifting lugs are symmetrically welded on the connecting part of the upper cover back plate 22 and the upper cover side plate 23 in the left-right direction. The structure is favorable for the stability of the position of the cover body during hoisting and the determination of the installation position.
As the preferred scheme of the utility model, the size design of this converter cubic dust excluding hood is as follows:
the length of a bottom cover opening of the lower cover 1 is 10-12 m, and the width is 5.5-6.5 m (the size of the skirt edge is not calculated); the height of the lower cover 1 is 6-7 m, the length of the skirt is 3.5-4 m, and the height is 1.5-2 m;
the length of a bottom cover opening of the upper cover 2 is 11-13 m, the width of the bottom cover opening is 3-4 m, and the height of the upper cover 2 is 3.5-4.5 m; the divergence angle of the upper cover 2 is 40-45 degrees.
The lower cover 1 and the upper cover 2 in the size have the advantages that the structural stability is guaranteed, the dust removal effect is excellent, the performance is stable, and the service life is long on the premise that the requirement for huge dust collection size is met.
Furthermore, the distance between the transverse angle steel frameworks of the lower cover 1 is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m; the distance between the transverse angle steel frameworks of the upper cover 2 is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m.
More preferably, the surfaces of the lower cover 1 and the upper cover 2 are sprayed with paint layers. On one hand, the steel plate can be prevented from being corroded and rusted, and on the other hand, the requirement of attractive appearance is met.
In addition, the tertiary dust hood for the converter preferably comprises an intermediate hood located between the bottom end of the upper hood 2 and the two lower hood top plates 14 for sealing a gap between the bottom hood opening of the upper hood 2 and the dust exhaust opening 16 of the lower hood 1. Preventing the smoke dust from leaking out through the gaps.
The utility model provides a converter cubic dust excluding hood has following advantage:
1, consists of two lower covers and an upper cover. Wherein, two lower covers are used for guaranteeing mechanical strength when increasing the area of gathering dust, reduce the transportation degree of difficulty. The upper cover is arranged above the two lower covers, and the bottom openings of the upper cover are communicated with the dust exhaust openings of the two lower covers to form a dust removal channel.
2, the lower cover and the upper cover are both steel structures, so that the strength is high, the heat resistance is good, and the dust removal effect can be stably exerted above the converter for a long time.
And 3, lugs are arranged on the lower cover and the upper cover, so that the hoisting and installation are convenient.
4, the raw materials are easy to obtain, the processing is convenient, and the equipment cost is favorably reduced.
To sum up, the utility model provides a converter cubic dust excluding hood has that dust removal effect is good, compact structure, and the installation of conveniently transporting, structure and stable performance, advantage with low costs.
Correspondingly, the utility model also provides a converter tertiary dust removal system, which comprises the converter tertiary dust hood; and the converter tertiary dust hood is arranged below the charging cross roof and is positioned above the converter. The dust suction opening of the converter tertiary dust hood can be directly connected with dust removal equipment or connected into a dust removal channel of a primary or secondary dust removal system.
Preferably, referring to fig. 9, in order to meet the requirement of dust removal of iron charging and dust raising of a 120t converter, the number of the three-time dust removal 100 of the converter is two, and the three-time dust removal is arranged on two sides of the charging bay beam 200 in parallel.
Further, the height of the bottom end of the converter tertiary dust hood from the ground is 32-33 m. The height is beneficial to trapping effective smoke while reducing the energy consumption of the system.
The converter tertiary dust removal system is provided with the converter tertiary dust removal cover, and accordingly has the advantages of good dust removal effect, compact structure, convenience in transportation and installation, stable structure and performance and low cost.
The converter three-time dust hood and the converter three-time dust removing system provided by the utility model are introduced in detail. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the method and its core ideas of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. A converter three-time dust hood is characterized by comprising two lower hoods and an upper hood which are of steel structures; wherein,
the lower cover includes: the lower cover comprises a lower cover front plate, a lower cover back plate, a lower cover side plate, a lower cover top plate and a skirt plate; the top plate of the lower cover is provided with a dust exhaust port; the skirt board is flush with the bottom end of the lower cover side board and extends backwards from the lower part of the rear end face of the lower cover side board; the bottom end of the lower cover back plate is flush with the top end of the skirt plate;
the upper shield is the structure of opening size convergent from bottom to top, and it includes: an upper cover front plate, an upper cover back plate, an upper cover side plate and an upper cover top plate; the upper cover is provided with a dust suction port;
the two lower covers are arranged in parallel left and right, the upper cover is positioned at the tops of the two lower covers, and the bottom cover openings of the upper cover the dust exhaust openings of the two lower covers;
the lower cover is provided with a lower lifting lug, and the upper cover is provided with an upper lifting lug.
2. The converter tertiary dust excluding hood according to claim 1,
a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks are welded on a lower cover front plate, a lower cover back plate and a lower cover side plate of the lower cover, a lower cover top plate and a skirt plate; h-shaped steel is welded at the connecting parts of the lower cover front plate, the lower cover back plate, the lower cover side plate and the lower cover top plate;
the upper cover front plate, the upper cover back plate, the upper cover side plate and the upper cover top plate of the upper cover are welded with a plurality of transverse angle steel frameworks and longitudinal angle steel frameworks; h-shaped steel is welded at the connecting parts of the upper cover front plate, the upper cover back plate, the upper cover side plate and the upper cover top plate.
3. The converter tertiary dust excluding hood according to claim 2, wherein, of the two lower hoods:
the dust exhaust port arranged on the lower cover top plate of the lower cover positioned on the left side is positioned between the right side of the lower cover top plate and the lower cover front plate;
the dust exhaust port arranged on the lower cover top plate of the lower cover positioned on the right side is positioned between the left side of the lower cover top plate and the lower cover front plate.
4. The converter tertiary dust hood according to claim 3, wherein two groups of first lower lifting lugs are symmetrically welded on the lower hood at the connecting part of the front lower hood plate and the top lower hood plate, and two groups of second lower lifting lugs are symmetrically welded on the connecting part of the back lower hood plate and the side lower hood plate;
two groups of first upper lifting lugs are welded on the upper cover in a bilateral symmetry mode at the connecting part of the upper cover front plate and the upper cover top plate, and two groups of second upper lifting lugs are welded on the connecting part of the upper cover back plate and the upper cover side plate in a bilateral symmetry mode.
5. The converter tertiary dust excluding hood according to claim 4,
the length of a bottom cover opening of the lower cover is 10-12 m, and the width of the bottom cover opening of the lower cover is 5.5-6.5 m; the height of the lower cover is 6-7 m, the length of the skirt is 3.5-4 m, and the height is 1.5-2 m;
the length of a bottom cover opening of the upper cover is 11-13 m, the width of the bottom cover opening of the upper cover is 3-4 m, and the height of the upper cover is 3.5-4.5 m; the divergence angle of the upper cover is 40-45 degrees.
6. The converter tertiary dust excluding hood according to claim 5,
the distance between the transverse angle steel frameworks of the lower cover is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m;
the distance between the transverse angle steel frameworks of the upper cover is 0.8-1 m, and the distance between the longitudinal angle steel frameworks is 0.7-0.9 m.
7. The converter tertiary dust hood according to any one of claims 1 to 6, wherein paint layers are sprayed on the surfaces of the lower hood and the upper hood; and/or the converter tertiary dust hood also comprises a middle hood which is positioned between the bottom end of the upper hood and the two lower hood top plates and is used for sealing a gap between the bottom hood opening of the upper hood and the dust exhaust opening of the lower hood.
8. A converter tertiary dust removal system, which is characterized by comprising the converter tertiary dust removal cover of any one of claims 1 to 7; and the converter tertiary dust hood is arranged below the charging cross roof and is positioned above the converter.
9. The converter tertiary dust removal system according to claim 8, wherein the number of the converter tertiary dust hoods is two, and the two converter tertiary dust hoods are arranged on two sides of the charging bay beam in parallel.
10. The converter tertiary dust removal system of claim 9, wherein the height of the bottom end of the converter tertiary dust hood from the ground is 32-33 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519111.1U CN210151146U (en) | 2019-04-17 | 2019-04-17 | Converter tertiary dust excluding hood and converter tertiary dust excluding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920519111.1U CN210151146U (en) | 2019-04-17 | 2019-04-17 | Converter tertiary dust excluding hood and converter tertiary dust excluding system |
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| Publication Number | Publication Date |
|---|---|
| CN210151146U true CN210151146U (en) | 2020-03-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920519111.1U Expired - Fee Related CN210151146U (en) | 2019-04-17 | 2019-04-17 | Converter tertiary dust excluding hood and converter tertiary dust excluding system |
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| CN (1) | CN210151146U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116179789A (en) * | 2023-02-27 | 2023-05-30 | 中冶京诚工程技术有限公司 | Three-time dust removal end system of converter |
-
2019
- 2019-04-17 CN CN201920519111.1U patent/CN210151146U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116179789A (en) * | 2023-02-27 | 2023-05-30 | 中冶京诚工程技术有限公司 | Three-time dust removal end system of converter |
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Granted publication date: 20200317 |