CN203582891U - Movable smoke hood - Google Patents
Movable smoke hood Download PDFInfo
- Publication number
- CN203582891U CN203582891U CN201320761471.5U CN201320761471U CN203582891U CN 203582891 U CN203582891 U CN 203582891U CN 201320761471 U CN201320761471 U CN 201320761471U CN 203582891 U CN203582891 U CN 203582891U
- Authority
- CN
- China
- Prior art keywords
- gas hood
- movable gas
- petticoat pipe
- pipe body
- water
- 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.)
- Expired - Lifetime
Links
- 239000000779 smoke Substances 0.000 title abstract description 9
- 239000002918 waste heat Substances 0.000 claims abstract description 18
- 239000007789 gas Substances 0.000 claims description 75
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000007789 sealing Methods 0.000 claims description 17
- 210000004907 gland Anatomy 0.000 claims description 15
- 239000000725 suspension Substances 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 9
- 239000003546 flue gas Substances 0.000 description 8
- 238000001816 cooling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003818 cinder Substances 0.000 description 2
- 239000003034 coal gas Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model provides a movable smoke hood which is arranged on a waste heat boiler. The movable smoke hood comprises a smoke hood body, wherein a plurality of hangers are arranged on the outer side of the smoke hood body; the hangers are circumferentially distributed along the four sides of the smoke hood body; a guide wheel is arranged at the top of each hanger; the guide wheels are arranged in a manner of protruding towards a lifting track arranged in an opening of the waste heat boiler; the guide wheels are lifted up and down inside the lifting track. The movable smoke hood disclosed by the utility model can overcome inconvenience and defects of the existing movable smoke hood, prolongs the service life, and is convenient to dismount, overhaul and replace.
Description
Technical field
The utility model relates to a kind of movable gas hood, relates in particular to a kind of Converter Residual Heat Boiler water-cooling movable smoke hood.
Background technology
In iron and steel metallurgical industry, Converter Residual Heat Boiler is the visual plant that carries out coal-gas recovering, and the operation condition of Converter Residual Heat Boiler is generating period, variation tempestuously with the smelting technology of converter.When bessemerizing, a large amount of high-temperature flue gas are by waste heat boiler, and waste heat boiler thermal load sharply increases, when blowing stops, waste heat boiler thermal load sharply reduces, severe operational conditions affects the work-ing life of waste heat boiler, and at present, the work-ing life of Converter Residual Heat Boiler is very short, according to statistics, the mean lifetime of the epimere cooling stack of existing Converter Residual Heat Boiler is about 6 years, and the life-span of hypomere cooling stack is 2～3 years, and the life-span of movable gas hood only had about 1 year.
At present, converter steelmaking fume recovery system adopts the design of not combustion method more, with the carbon monoxide of trying one's best in recovered flue gas, this kind of design will be controlled high-temperature furnace gas at the combustion share at fire door place, improves the quality of coal-gas recovering, when bessemerizing, fall movable gas hood, reduce the air capacity entering from the gap between converter mouth and flue, avoid flue gas to spill from this gap simultaneously, when converter inclining, rise movable gas hood, do not hinder converter operation.
Fig. 1 is the structural representation of existing Converter Residual Heat Boiler movable gas hood.As shown in Figure 1, the heating part of existing movable gas hood is the tube bank 14 of being heated, the tube bank 14 of being heated adopts vertical pipe iris type, the design of the lower umbrella hood with shirt rim, its lower collecting box 13 is positioned at petticoat pipe bottom, this movable gas hood also needs to configure water distribution header 11, distribution piping 12, upper header 15, manifold trunk 16, collects header 17, the location of this movable gas hood adopts guidepost 19 forms, for this device can be sling, on this device, be provided with suspension bracket 18, its shortcoming having of such movable gas hood is:
(1) its complex structure, weight of equipment is large, has increased the load of lifting gear;
(2) lower collecting box 13 is arranged on the lowermost end of petticoat pipe, and the shortcoming of this position is to make lower collecting box 13 always in the baking of high-temperature flue gas is washed away, and produces periodic alternating thermal stress, and the tube bank 14 that easily makes to be heated is affected the petticoat pipe life-span by drawing crack;
(3) the be heated groove at tube bank 14 pipe iris type structure median septum place, easily slagging scorification, slagging scorification region is conducted heat bad, causes be heated uneven so that local superheating of heat pipe to damage; During scarfing cinder, cause heat pipe physical abuse, even make heat pipe by drawing crack;
(4) this device adopts water seal arrangement 20 to seal, the sealing property of water seal is more reliable than sand seal, but in water sealed tank, easily fall into lime-ash, cleaning is trouble, complex structure, and after safety guard is blocked in installing, structure is more complicated, and because water sealed tank is fixed on movable gas hood, increased the load of lifting gear;
(5) for middle-size and small-size Converter Residual Heat Boiler, according to process for making, repair stove requirement and be arranged to consolidated form more, for reducing factory building height, how revolving furnace body is made to short and stout shape, originally by converter inclining simultaneously, movable gas hood is temporarily fixed in converter, the mode of removing again replacing can not realize, need to be by the design of movable gas hood distinguish, to facilitate maintenance to change, vertically to pipe iris type movable gas hood because of its complex structure, so distinguish design and manufacture is difficult.
As can be seen here, above-mentioned Converter Residual Heat Boiler movable gas hood has inconvenience and defect in structure and use.
Summary of the invention
In order to address the above problem, the utility model provides a kind of movable gas hood, and it can overcome inconvenience and the defect of existing movable gas hood, improves the life-span of movable gas hood, and for convenience detach, inspect and change.
To achieve these goals, the utility model provides a kind of movable gas hood, be arranged on waste heat boiler, movable gas hood includes petticoat pipe body, the arranged outside of petticoat pipe body has a plurality of suspension brackets, and suspension bracket circumferentially distributes along the surrounding of petticoat pipe body, at the top of each suspension bracket, is provided with guide deflection sheave, guide deflection sheave arranges to the fluctuating orbit that is arranged on waste heat boiler fire door place is outstanding, and guide deflection sheave is oscilaltion in fluctuating orbit.
Further, be provided with many endothermic tubes that are superimposed together on petticoat pipe body, endothermic tube is ring pipe, is provided with the annular round steel that can play fixed action between adjacent endothermic tube.
Further, the top of petticoat pipe body is provided with annular sealing gland header, on sealing gland header, be circumferentially arranged at intervals with a plurality of gas ejector pipes for uperize and nitrogen, one end of gas ejector pipe is communicated with sealing gland header, and the other end is deep into the inner side of petticoat pipe bodies top.
Further, movable gas hood also include be arranged on petticoat pipe body exterior go out water manifold and water-inlet header, each endothermic tube is by going out water manifold and water-inlet header.
Further, petticoat pipe body is split-type, is provided with forebody and latter half of, forebody with latter half of between by flange mounting block, be connected.
Further, be provided with one and go out water manifold and a water-inlet header on the forebody of movable gas hood, be provided with one and go out water manifold and a water-inlet header on movable gas hood latter half of, flange mounting block is welded on out on water manifold and water-inlet header.
Further, petticoat pipe body is all-in-one-piece truncated cone-shaped.
Further, the top of petticoat pipe body is provided with annular cover plate.
Further, suspension bracket and guide deflection sheave are 4.
The advantage that the utility model has compared to prior art is:
1, the horizontal endless tube solid matter of heating part is arranged, has increased effective heating surface long-pending, has improved the intensity of petticoat pipe integral body;
2, movable gas hood structure of the present utility model does not have the groove at traditional pipe iris type structure median septum place, and to compare petticoat pipe inwall comparatively smooth with conventional membrane wall, reduces slagging scorification, and scarfing cinder is easy, thereby has reduced the impact of slagging scorification on the petticoat pipe life-span;
3, Inlet and outlet water header of the present utility model is arranged in petticoat pipe outside, and header is not directly subject to sweep of gases, has improved its life-span;
4, in the utility model, the decoration form of header makes petticoat pipe lower-most point that blowdown offlet is set to become possibility, improves the deposition of dirt in header and heat pipe;
5, the utility model has improved compensate for heat expansion performance, particularly radial thermal expansion;
6, the utility model adopts distinguish design, replacing for convenience detach;
7, the utility model adopts sealing gland pipeline to carry out sealing gland, simple in structure, is difficult for falling into lime-ash, has alleviated the load of lifting gear, guarantees that sealing is tight, does not make flue gas leak outside;
8, the utility model adopts guide deflection sheave location, and simple in structure, loading is light, is difficult for bite.
Accompanying drawing explanation
Fig. 1 is the structural representation of movable gas hood in prior art;
Fig. 2 is the vertical view of movable gas hood in the utility model;
Fig. 3 is the structural representation of A-A in Fig. 2;
Fig. 4 is the partial enlarged drawing at H place in Fig. 3;
Fig. 5 is the structural representation of B-B in Fig. 2;
Fig. 6 is the vertical view of Fig. 3.
Embodiment
Below, by exemplary embodiment, the utility model is specifically described.Yet should be appreciated that element, structure and the feature in an embodiment also can be attached in other embodiments valuably in the situation that further not narrating.
Referring to Fig. 2-Fig. 6, wherein Fig. 2 is the vertical view of movable gas hood in the utility model, and Fig. 3 is the structural representation of A-A in Fig. 2, and Fig. 4 is the structural representation of A-A in Fig. 2, and Fig. 5 is the structural representation of B-B in Fig. 2, and Fig. 6 is the vertical view of structure in Fig. 3.The utility model provides two kinds of embodiments altogether, wherein the first embodiment is split-type movable gas hood, this kind of petticoat pipe used when waste heat boiler is fixed installation, as shown in the figure, this movable gas hood is arranged on waste heat boiler, movable gas hood comprises petticoat pipe body, on petticoat pipe body, be provided with many endothermic tubes that are superimposed together 1, this endothermic tube 1 is ring pipe, between adjacent endothermic tube 1, be provided with annular round steel 2, to play fixing effect, wherein welding between endothermic tube 1 and annular round steel 2, the top of petticoat pipe body is provided with annular sealing gland header 5, on sealing gland header 5, be circumferentially arranged at intervals with a plurality of gas ejector pipes 6 for uperize and nitrogen, one end of gas ejector pipe 6 is communicated with sealing gland header 5, and the other end is deep into the inner side of petticoat pipe bodies top, prevents that flue gas from leaking, this movable gas hood also include be arranged on petticoat pipe body exterior go out water manifold 3 and water-inlet header 4, each endothermic tube 1 is by going out water manifold 3 and water-inlet header 4, by water-inlet header 3 and go out the outside benefit that water manifold 4 is arranged on petticoat pipe body and be, such setting just makes two headers avoid flue gas directly to wash away baking, reduce thermal distortion, improved work-ing life, for the ease of changing movable gas hood, movable gas hood is set to split-type, be divided into forebody and latter half of, wherein forebody with latter half of between by flange mounting block 10, be connected, so that the dismounting of movable gas hood, flange mounting block 10 is welded on out on water manifold 3 and water-inlet header 4, simultaneously in order better to process water inlet and water outlet, preferably, the forebody of movable gas hood and latter half of on be respectively arranged with one and go out water manifold 3 and a water-inlet header 4, on movable gas hood now, be provided with altogether two and go out water manifold 3 and two water-inlet headers 4, also two pump circulation have just been formed.
In order to move up and down movable gas hood to carry out descending operation, arranged outside at petticoat pipe body has a plurality of suspension brackets 7, surrounding along petticoat pipe body circumferentially distributes, in the upper end of each suspension bracket 7, be provided with guide deflection sheave 8, guide deflection sheave 8 arranges to the fluctuating orbit that is arranged on waste heat boiler fire door place is outstanding, guide deflection sheave 8 oscilaltion in fluctuating orbit, wherein suspension bracket 7 and guide deflection sheave 8 are preferably 4.In order to prevent the leakage of flue gas and sealing gland gas, on the top of petticoat pipe body, be provided with annular cover plate 9.
It is more convenient for movable gas hood is used on waste heat boiler movably, the utility model provides the second embodiment, present embodiment and above-mentioned embodiment are basic identical, difference technology point is, the movable gas hood in present embodiment is monoblock type, does not need to arrange flange mounting block, because waste heat boiler is removable, just do not need movable gas hood dismounting also can take off movable gas hood, design is simple in structure like this, and thermal expansion distortion is less; Simultaneously in such cases, because movable gas hood is monoblock type, so do not need to be provided with two water-inlet headers and go out water manifold.
In sum, this movable gas hood is for being arranged on waste heat boiler, on movable gas hood, be provided with fixedly petticoat pipe, movable gas hood includes petticoat pipe body, the arranged outside of petticoat pipe body has a plurality of suspension brackets 7, suspension bracket 7 circumferentially distributes along the surrounding of petticoat pipe body, in the upper end of each suspension bracket 7, is provided with guide deflection sheave 8, and guide deflection sheave 8 is along the fluctuating orbit oscilaltion that is arranged on movable gas hood surrounding; On petticoat pipe body, be provided with many endothermic tubes that are superimposed together, endothermic tube is ring pipe, between adjacent endothermic tube, be provided with the annular round steel of fixed action, the top of petticoat pipe body is provided with annular sealing gland header 5, on sealing gland header 5, be circumferentially arranged at intervals with a plurality of gas ejector pipes 6 for uperize and nitrogen, one end of gas ejector pipe 6 is communicated with sealing gland header 5, and the other end is deep into the inner side of petticoat pipe bodies top; Movable gas hood also include be arranged on petticoat pipe body exterior go out water manifold 3 and water-inlet header 4, each endothermic tube 1 is by going out water manifold 3 and water-inlet header 4.
When movable gas hood is arranged on hard-wired waste heat boiler, petticoat pipe body is split-type, be provided with forebody and latter half of, forebody with latter half of between by flange mounting block 10, be connected, on the forebody of movable gas hood, be provided with one and go out water manifold 3 and a water-inlet header 4, on movable gas hood latter half of, be provided with one and go out water manifold 3 and a water-inlet header 4, flange mounting block 10 is welded on out on water manifold 3 and water-inlet header 4.
When movable gas hood is arranged on movably on waste heat cigarette stove, petticoat pipe body is all-in-one-piece truncated cone-shaped.
In order to improve the stopping property of petticoat pipe body, on the top of above-mentioned petticoat pipe body, be provided with annular cover plate 9.
Be appreciated that the utility model is described by some embodiment, those skilled in the art know, in the situation that not departing from spirit and scope of the present utility model, can carry out various changes or equivalence replacement to these features and embodiment.In addition, under instruction of the present utility model, can modify to adapt to concrete situation and material and can not depart from spirit and scope of the present utility model these features and embodiment.Therefore, the utility model is not subject to the restriction of specific embodiment disclosed herein, and the embodiment within the scope of all the application's of falling into claim belongs in the scope that the utility model protects.
Claims (9)
1. a movable gas hood, be arranged on waste heat boiler, it is characterized in that, movable gas hood includes petticoat pipe body, the arranged outside of petticoat pipe body has a plurality of suspension brackets (7), and suspension bracket (7) circumferentially distributes along the surrounding of petticoat pipe body, at the top of each suspension bracket (7), is provided with guide deflection sheave (8), guide deflection sheave (8) arranges to the fluctuating orbit that is arranged on waste heat boiler fire door place is outstanding, guide deflection sheave (8) oscilaltion in fluctuating orbit.
2. movable gas hood according to claim 1, is characterized in that, is provided with many endothermic tubes that are superimposed together (1) on petticoat pipe body, and endothermic tube (1) is ring pipe, is provided with the annular round steel (2) that can play fixed action between adjacent endothermic tube (1).
3. movable gas hood according to claim 2, it is characterized in that, the top of petticoat pipe body is provided with annular sealing gland header (5), on sealing gland header (5), be circumferentially arranged at intervals with a plurality of gas ejector pipes for uperize and nitrogen (6), one end of gas ejector pipe (6) is communicated with sealing gland header (5), and the other end is deep into the inner side of petticoat pipe bodies top.
4. movable gas hood according to claim 3, it is characterized in that, movable gas hood also include be arranged on petticoat pipe body exterior go out water manifold (3) and water-inlet header (4), each endothermic tube (1) is by going out water manifold (3) and water-inlet header (4).
5. movable gas hood according to claim 4, is characterized in that, petticoat pipe body is split-type, is provided with forebody and latter half of, forebody with latter half of between by flange mounting block (10), be connected.
6. movable gas hood according to claim 5, it is characterized in that, on the forebody of movable gas hood, be provided with one and go out water manifold (3) and a water-inlet header (4), on movable gas hood latter half of, be provided with one and go out water manifold (3) and a water-inlet header (4), flange mounting block (10) is welded on out on water manifold (3) and water-inlet header (4).
7. movable gas hood according to claim 4, is characterized in that, petticoat pipe body is all-in-one-piece truncated cone-shaped.
8. according to the movable gas hood described in claim 6 or 7, it is characterized in that, the top of petticoat pipe body is provided with annular cover plate (9).
9. according to the movable gas hood described in claim 6 or 7, it is characterized in that, suspension bracket (7) and guide deflection sheave (8) are 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761471.5U CN203582891U (en) | 2013-11-27 | 2013-11-27 | Movable smoke hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320761471.5U CN203582891U (en) | 2013-11-27 | 2013-11-27 | Movable smoke hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203582891U true CN203582891U (en) | 2014-05-07 |
Family
ID=50580838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320761471.5U Expired - Lifetime CN203582891U (en) | 2013-11-27 | 2013-11-27 | Movable smoke hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203582891U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604122A (en) * | 2017-10-10 | 2018-01-19 | 苏州海陆重工股份有限公司 | Converter Residual Heat Boiler movable gas hood |
| CN109338031A (en) * | 2018-11-30 | 2019-02-15 | 湖南华菱湘潭钢铁有限公司 | Converter movable hood |
| CN109652608A (en) * | 2018-12-30 | 2019-04-19 | 洛阳博华实业有限公司 | Track is used in a kind of petticoat pipe translation of included clearing function |
| CN110423857A (en) * | 2019-08-22 | 2019-11-08 | 中冶赛迪技术研究中心有限公司 | Waste heat boiler fire door segment structure |
| WO2023138040A1 (en) * | 2022-01-20 | 2023-07-27 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
-
2013
- 2013-11-27 CN CN201320761471.5U patent/CN203582891U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107604122A (en) * | 2017-10-10 | 2018-01-19 | 苏州海陆重工股份有限公司 | Converter Residual Heat Boiler movable gas hood |
| CN109338031A (en) * | 2018-11-30 | 2019-02-15 | 湖南华菱湘潭钢铁有限公司 | Converter movable hood |
| CN109652608A (en) * | 2018-12-30 | 2019-04-19 | 洛阳博华实业有限公司 | Track is used in a kind of petticoat pipe translation of included clearing function |
| CN109652608B (en) * | 2018-12-30 | 2023-11-24 | 洛阳博华实业有限公司 | From track for petticoat pipe translation of taking clearance function |
| CN110423857A (en) * | 2019-08-22 | 2019-11-08 | 中冶赛迪技术研究中心有限公司 | Waste heat boiler fire door segment structure |
| WO2023138040A1 (en) * | 2022-01-20 | 2023-07-27 | 中冶南方工程技术有限公司 | Flue of converter waste heat boiler |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |