CN110423857A - Waste heat boiler fire door segment structure - Google Patents
Waste heat boiler fire door segment structure Download PDFInfo
- Publication number
- CN110423857A CN110423857A CN201910779753.XA CN201910779753A CN110423857A CN 110423857 A CN110423857 A CN 110423857A CN 201910779753 A CN201910779753 A CN 201910779753A CN 110423857 A CN110423857 A CN 110423857A
- Authority
- CN
- China
- Prior art keywords
- fire door
- heat boiler
- waste heat
- collecting box
- segment structure
- 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.)
- Granted
Links
- 239000002918 waste heat Substances 0.000 title claims abstract description 19
- 230000002093 peripheral effect Effects 0.000 claims abstract description 6
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000004927 clay Substances 0.000 claims description 14
- 239000010865 sewage Substances 0.000 claims description 13
- 239000002893 slag Substances 0.000 abstract description 8
- 238000001816 cooling Methods 0.000 abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 239000007789 gas Substances 0.000 description 14
- 238000010586 diagram Methods 0.000 description 5
- 230000001771 impaired effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005453 pelletization Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/006—Systems for reclaiming waste heat using a boiler
-
- 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
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Special Wing (AREA)
- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The present invention relates to a kind of Converter Residual Heat Boiler fire door segment structures, belong to waste heat boiler field.The waste heat boiler fire door segment structure, including fire door section ontology, the distribution header being circumferentially positioned at fire door section body peripheral, the lower collecting box being arranged in below distribution header and several distribution pipes that distribution header is connected with lower collecting box；The tube wall lower end of fire door section ontology is located at least significant end；Lower collecting box is circumferentially positioned at the least significant end outer edge of fire door section ontology.In the fire door segment structure, lower collecting box has been arranged at the minimum point of water cooling tube wall, avoid traditional fire door section because caused by U-shaped curved collection slag can not effectively blowdown and then the case where damage, the significant service life for extending waste heat boiler fire door section.
Description
Technical field
The invention belongs to waste heat boiler fields, and in particular to a kind of Converter Residual Heat Boiler fire door segment structure.
Background technique
About 2000 DEG C of high-temperature flue gas can be generated in convertor steelmaking process, these high-temperature flue gas are cold by Converter Residual Heat Boiler
But enter dust pelletizing system afterwards.Converter Residual Heat Boiler is constituted by several sections, wherein the worst fire door for Converter Residual Heat Boiler of operating condition
Section.Since Converter Residual Heat Boiler lower part is movable gas hood 1, movable gas hood 1 needs to be promoted in converter charging and tapping process, converter
Large quantity of air enters burning coal gas in order to prevent in converting process, and movable gas hood 1 then needs to drop cover.Therefore in order to cooperate movable cigarette
The lifting and sealing of cover, traditional Converter Residual Heat Boiler fire door section (as shown in Figure 1) are arranged distribution header 2, lower collecting box 3 upper
Portion, there are minimum points U-shaped curved 4 for the water screen tube of such fire door section.Since this U-shaped curved 4 can not carry out effective blowdown, often collect
Slag can reduce cooling effect, so that the fire door section damage frequency of Converter Residual Heat Boiler is high.
Summary of the invention
In view of this, eliminating fire door section minimum point the purpose of the present invention is to provide a kind of waste heat boiler fire door segment structure
It is U-shaped curved, caused by avoiding because of minimum point set slag fire door section damage problem.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of waste heat boiler fire door segment structure, including fire door section ontology, point being circumferentially positioned at fire door section body peripheral
With header, the lower collecting box being arranged in below distribution header and several distribution pipes that distribution header is connected with lower collecting box；
The tube wall lower end of fire door section ontology is located at least significant end；Lower collecting box is circumferentially positioned at the least significant end outer edge of fire door section ontology.
Further, distribution pipe quantity is no less than four, is arranged in same circumference evenly and at intervals around fire door section body peripheral
On face.
Further, be connected with guiding steel plate between adjacent distribution pipe, be oriented to steel plate upper and lower end it is corresponding with distribution header with
And lower collecting box connect it is integral.
Further, it is oriented in steel plate outside wall surface and is coated with fire clay.
Further, distribution pipe is coated in fire clay.
It further, further include sewage pipe, the Single port of sewage pipe extends into lower collecting box and can form dewatering in siphon type.
Further, fire clay is coated in the outside wall surface of sewage pipe.
The beneficial effects of the present invention are:
In the fire door segment structure, lower collecting box has been arranged at the minimum point of water cooling tube wall, avoids traditional fire door section because U-shaped
Caused by curved collection slag can not effectively blowdown, and then damage the case where；It is welded with guiding steel plate between distribution pipe simultaneously, is oriented to steel plate
Outside is equipped with fire clay, so that movable gas hood still is able to smoothly go up and down in the case where changing fire door section body construction；Siphon
The sewage pipe of formula can guarantee the smooth blowdown of lower collecting box.In this way, being avoided U-shaped curved while movable gas hood can smoothly be gone up and down
Collect fire door section caused by slag to damage, the significant service life for extending waste heat boiler fire door section.
Other advantages, target and feature of the invention will be illustrated in the following description to a certain extent, and
And to a certain extent, based on will be apparent to those skilled in the art to investigating hereafter, Huo Zheke
To be instructed from the practice of the present invention.Target of the invention and other advantages can be realized by following specification and
It obtains.
Detailed description of the invention
To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention is made below in conjunction with attached drawing excellent
The detailed description of choosing, in which:
Fig. 1 is traditional Converter Residual Heat Boiler fire door segment structure schematic diagram；
Fig. 2 is the waste heat boiler fire door segment structure schematic diagram of this programme；
Fig. 3 is the A-A cross-sectional view of Fig. 2；
Fig. 4 is the portion the B enlarged drawing of Fig. 3.
Appended drawing reference:
Movable gas hood 1, distribution header 2, lower collecting box 3, U-shaped curved 4, fire door section ontology 5, distribution pipe 6, guiding steel plate 7, fire resisting
Mud 8, sewage pipe 9.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that diagram provided in following embodiment is only to show
Meaning mode illustrates basic conception of the invention, and in the absence of conflict, the feature in following embodiment and embodiment can phase
Mutually combination.
Wherein, the drawings are for illustrative purposes only and are merely schematic diagrams, rather than pictorial diagram, should not be understood as to this
The limitation of invention；Embodiment in order to better illustrate the present invention, the certain components of attached drawing have omission, zoom in or out, not
Represent the size of actual product；It will be understood by those skilled in the art that certain known features and its explanation may be omitted and be in attached drawing
It is understood that.
The same or similar label correspond to the same or similar components in the attached drawing of the embodiment of the present invention；It is retouched in of the invention
In stating, it is to be understood that if there is the orientation or positional relationship of the instructions such as term " on ", "lower", "left", "right", "front", "rear"
To be based on the orientation or positional relationship shown in the drawings, be merely for convenience of description of the present invention and simplification of the description, rather than indicate or
It implies that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore is described in attached drawing
The term of positional relationship only for illustration, is not considered as limiting the invention, for the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term can be understood as the case may be.
Fig. 2~Fig. 4 is please referred to, is a kind of waste heat boiler fire door segment structure, including fire door section ontology 5, be circumferentially positioned at furnace
Distribution header 2 at 5 periphery of mouthful section ontology, the lower collecting box 3 being arranged in below distribution header 2 and several will distribution headers 2
The distribution pipe 6 being connected with lower collecting box 3；The tube wall lower end of fire door section ontology 5 is located at least significant end；Lower collecting box 3 is circumferentially positioned at
The least significant end outer edge of fire door section ontology.By improving the structure of fire door section ontology 5 and the setting position of lower collecting box 3, from
And the U-shaped curved of fire door section minimum point is eliminated, avoid the U-shaped curved collection slag problem of traditional fire door section.
Specifically, fire door section ontology is the water cooling tube wall in revolving body, which is arranged in least significant end, at this point,
Then simultaneously outside expanding direction extends axially downward for the lower end (being also " big end ") of water cooling tube wall, and setting in this way eliminates water cooling
The back bending of tube wall port generates U-shaped curved；Lower collecting box is then set up directly on the outer edge of the port, and cooperating from structure realizes
U-shaped curved elimination.
Preferably, the quantity of distribution pipe 6 is no less than four, and each distribution pipe 6 is around fire door section body peripheral cloth evenly and at intervals
It sets on same periphery.At this point, distribution header 2 and lower collecting box 3 are connected to cylindric entirety by distribution pipe 6, it is used as and takes
Disappeared it is U-shaped it is curved after movable gas hood 1 installation foundation.And the distribution pipe 6 being evenly arranged on the same circumference can then make overall structure
It is more uniformly stressed, to guarantee that the operation of movable gas hood 1 is more steady.
As a further improvement of the foregoing solution, be connected between adjacent distribution pipe 6 guiding steel plate 7, guiding steel plate 7 it is upper,
Lower end is corresponding to connect integral with distribution header 2 and lower collecting box 3, and such movable gas hood 1 can be gone up and down along guiding steel plate,
It ensure that movable gas hood can be moved up and down smoothly.
As a further improvement of the foregoing solution, it is oriented in 7 outside wall surface of steel plate and is coated with fire clay 8, in this way, movable gas hood
1 goes up and down outside fire clay, and guiding 7 high temperature of steel plate can be prevented impaired.
Preferably, distribution pipe is coated on interior by fire clay, at this point, the outside wall surface of fire clay forms periphery, it will be movable
Petticoat pipe 1 is arranged outside fire clay, and it is impaired not only to have prevented internal duct and steel plate, but can guarantee movable gas hood 1 installation accuracy and
Running stability, to extend the service life of equipment.
It as a further improvement of the foregoing solution, further include sewage pipe 9, the Single port of sewage pipe 9 extends into lower collecting box 3
And dewatering in siphon type can be formed, to facilitate the blowdown of lower collecting box.It is also coated with fire clay in the outside wall surface of sewage pipe 9, can be prevented
9 high temperature of sewage pipe is impaired.
In the fire door segment structure, lower collecting box has been arranged at the minimum point of water cooling tube wall, avoids traditional fire door section because U-shaped
Caused by curved collection slag can not effectively blowdown, and then damage the case where；It is welded with guiding steel plate between distribution pipe simultaneously, is oriented to steel plate
Outside is equipped with fire clay, so that movable gas hood still is able to smoothly go up and down in the case where changing fire door section body construction；Siphon
The sewage pipe of formula can guarantee the smooth blowdown of lower collecting box.In this way, being avoided U-shaped curved while movable gas hood can smoothly be gone up and down
Collect fire door section caused by slag to damage, the significant service life for extending waste heat boiler fire door section.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with
Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of the technical program, should all be covered in the present invention
Scope of the claims in.
Claims (7)
1. a kind of waste heat boiler fire door segment structure, including fire door section ontology, the distribution being circumferentially positioned at fire door section body peripheral
Header, the lower collecting box being arranged in below distribution header and several distribution pipes that distribution header is connected with lower collecting box；Its
Be characterized in that: the tube wall lower end of fire door section ontology is located at least significant end；Lower collecting box is circumferentially positioned at the least significant end of fire door section ontology
Outer edge.
2. waste heat boiler fire door segment structure according to claim 1, it is characterised in that: distribution pipe quantity is no less than four,
It is arranged on same periphery evenly and at intervals around fire door section body peripheral.
3. waste heat boiler fire door segment structure according to claim 1 or 2, it is characterised in that: be connected between adjacent distribution pipe
Be oriented to steel plate, be oriented to steel plate upper and lower end it is corresponding with distribute header and lower collecting box connect it is integral.
4. waste heat boiler fire door segment structure according to claim 3, it is characterised in that: be coated in guiding steel plate outside wall surface
Fire clay.
5. waste heat boiler fire door segment structure according to claim 4, it is characterised in that: distribution pipe is coated in fire clay.
6. waste heat boiler fire door segment structure according to claim 1, it is characterised in that: it further include sewage pipe, sewage pipe
Single port extends into lower collecting box and can form dewatering in siphon type.
7. waste heat boiler fire door segment structure according to claim 6, it is characterised in that: be coated in the outside wall surface of sewage pipe
Fire clay.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779753.XA CN110423857B (en) | 2019-08-22 | 2019-08-22 | Furnace mouth section structure of waste heat boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910779753.XA CN110423857B (en) | 2019-08-22 | 2019-08-22 | Furnace mouth section structure of waste heat boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110423857A true CN110423857A (en) | 2019-11-08 |
| CN110423857B CN110423857B (en) | 2024-07-09 |
Family
ID=68415573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910779753.XA Active CN110423857B (en) | 2019-08-22 | 2019-08-22 | Furnace mouth section structure of waste heat boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110423857B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT258985B (en) * | 1961-07-26 | 1967-12-27 | Waagner Biro Ag | Pivoting extractor hood to divert the combustion gases from intermittently operating steel furnaces, especially converters |
| CN2811902Y (en) * | 2005-08-11 | 2006-08-30 | 首钢总公司 | Dry type seal device for moveable apron of rotary furnace |
| CN2910955Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Lower header lifting type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| CN2910949Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Surface hot spraying type evaporated cooling flue of steelmaking converter |
| CN203582891U (en) * | 2013-11-27 | 2014-05-07 | 中冶东方工程技术有限公司 | Movable smoke hood |
| CN206940936U (en) * | 2017-06-28 | 2018-01-30 | 承德建龙特殊钢有限公司 | A kind of flue protector |
| CN210765384U (en) * | 2019-08-22 | 2020-06-16 | 中冶赛迪技术研究中心有限公司 | Exhaust-heat boiler furnace mouth section structure |
-
2019
- 2019-08-22 CN CN201910779753.XA patent/CN110423857B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT258985B (en) * | 1961-07-26 | 1967-12-27 | Waagner Biro Ag | Pivoting extractor hood to divert the combustion gases from intermittently operating steel furnaces, especially converters |
| CN2811902Y (en) * | 2005-08-11 | 2006-08-30 | 首钢总公司 | Dry type seal device for moveable apron of rotary furnace |
| CN2910955Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Lower header lifting type chimney fixed at converter mouth of evaporated cooling flue of steelmaking converter |
| CN2910949Y (en) * | 2006-06-12 | 2007-06-13 | 江阴海陆冶金设备制造有限公司 | Surface hot spraying type evaporated cooling flue of steelmaking converter |
| CN203582891U (en) * | 2013-11-27 | 2014-05-07 | 中冶东方工程技术有限公司 | Movable smoke hood |
| CN206940936U (en) * | 2017-06-28 | 2018-01-30 | 承德建龙特殊钢有限公司 | A kind of flue protector |
| CN210765384U (en) * | 2019-08-22 | 2020-06-16 | 中冶赛迪技术研究中心有限公司 | Exhaust-heat boiler furnace mouth section structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110423857B (en) | 2024-07-09 |
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| PB01 | Publication | ||
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| GR01 | Patent grant |