CN202226813U - Device for recycling flue gas heat during coke dry quenching - Google Patents
Device for recycling flue gas heat during coke dry quenching Download PDFInfo
- Publication number
- CN202226813U CN202226813U CN2011203778933U CN201120377893U CN202226813U CN 202226813 U CN202226813 U CN 202226813U CN 2011203778933 U CN2011203778933 U CN 2011203778933U CN 201120377893 U CN201120377893 U CN 201120377893U CN 202226813 U CN202226813 U CN 202226813U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- waste heat
- dry quenching
- coke
- heat boiler
- 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 - Fee Related
Links
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
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Coke Industry (AREA)
Abstract
The utility model relates to a device for recycling flue gas heat during coke dry quenching. The device comprises a dry quenching boiler; the top of the dry quenching boiler is communicated with a suction pipe; the suction pipe is communicated with a ceramic multi-tube dust cleaner; the dry quenching boiler is communicated with the top of a waste heat boiler through the suction pipe and the ceramic multi-tube dust cleaner; at the bottom of the waste heat exchanger, a high-temperature flue gas passage of the waste heat boiler is communicated with a high-temperature flue gas passage of a soft water heat exchanger; a water outlet of the soft water heat exchanger is communicated with a water inlet of the upper part of the waste heat boiler; the soft water heat exchanger is communicated with a water heat exchanger which is communicated with a fan; the fan is communicated with a gas tube which is communicated with cold nitrogen pipes which are arranged on the dry quenching boiler; and a coke drying quenching technology is used for cooling hot formed coke.
Description
Technical field
The utility model relates to a kind of dry quenching(of coke) flue gas heat retrieving arrangement, belongs to coal chemical technology.
Background technology
Dry Quenching Technology is to utilize the low temperature rare gas element to put out in the stove and the burnt heat exchange of pattern of fever dried, thereby reduces the technology of formed coke temperature.The general means that adopt are that the low temperature rare gas element is blasted dried putting out in the stove; The burnt heat exchange of low temperature rare gas element and pattern of fever; Take away the burnt heat of pattern of fever; The burnt cooling of pattern of fever obtains cold mould Jiao, and the low temperature rare gas element absorbs heat simultaneously becomes high-temperature gas, and the entrained heat of high-temperature gas can reclaim or further utilize.
In the prior art; Chinese patent CN201598261U discloses a kind of dry quenching(of coke) system, comprises coke oven and quenching car, and said quenching car communicates with the dried stove that puts out; The dried stove that puts out is communicated with waste heat boiler; Waste heat boiler is communicated with rare gas element treatment unit and generator respectively, and the rare gas element treatment unit is communicated with blower fan, and blower fan is communicated with the dried stove that puts out again.In the above-mentioned technology; Dried put out the high-temperature gas of discharging in the stove with heat transferred behind the soft water in the waste heat boiler; The high-pressure water vapor that boiler produces can generate electricity by pushing generator; Gas after waste heat boiler conducts heat is blown into dried putting out in the stove by recirculation blower and further uses after the rare gas element treatment unit is handled; In fact; In said process; Gas after waste heat boiler conducts heat still has considerable heat, it is input in the rare gas element treatment unit, if the rare gas element treatment unit has carried out the secondary cooling to gas; The heat of the gas that is then exchanged out does not turn back to and carries out reuse in the system, and system does not carry out optimized utilization with the heat of self; If the rare gas element treatment unit does not cool off gas once more; Then the surplus heat of gas does not obtain utilizing; Wasted energy; And the gas with certain temperature driedly puts out that its certain temperature that has of back can impact the cooling forming of formed coke in the stove getting into, thereby has influence on the quality of formed coke.
Secondly, in above-mentioned technology, the dried high-temperature gas of discharging in the stove that puts out is directly to enter into waste heat boiler; From the composition of this high-temperature gas, it is not simple gas, but has mixed the high-temperature flue gas of the solid particulate matter that produces in the formed coke decomposition course; After this high-temperature flue gas gets into waste heat boiler, life-time service, settled solid particulate is the easy blocking pipeline not only; And, reduce the work-ing life of pipeline easily because of solid particulate slippage in pipeline damage tube wall of swiping.
The utility model content
The utility model first technical problem to be solved is that the gas after waste heat boiler conducts heat still has considerable heat in the prior art; It is input in the rare gas element treatment unit; If the rare gas element treatment unit has carried out the secondary cooling to gas; The heat of the gas that is then exchanged out does not turn back to and carries out reuse in the system, and system does not carry out optimized utilization with the heat of self; If the rare gas element treatment unit do not cool off gas once more, then the surplus heat of gas does not obtain utilizing, and wasted energy, and the temperature of gas is low inadequately, gets into that dried to put out in the stove cooling performance to formed coke not good; And then proposed a kind ofly can fully cool off the high-temperature gas of discharging and collected heat is back to use the dry coke quenching flue gas heat retrieving arrangement in the system by waste heat boiler;
The utility model second technical problem to be solved is that what put out that stove enters into waste heat boiler is not simple gas by dried; But mixed the high-temperature flue gas of the solid particulate matter that produces in the formed coke decomposition course; After high-temperature flue gas gets into waste heat boiler; Solid particulate wherein not only can blocking pipe, and can swipe because of slippage in pipeline and be damaged to tube wall; And then propose a kind of can be to getting into the dry coke quenching flue gas heat retrieving arrangement that high-temperature flue gas in the waste heat boiler carry out dust removal process.
For solving the problems of the technologies described above, the utility model provides a kind of dry quenching(of coke) flue gas heat retrieving arrangement, comprising: extraction pipe, and said extraction pipe is connected with the dried stove that puts out; Waste heat boiler, said waste heat boiler one end is connected with said extraction pipe, and the other end is connected with blower fan; Gas-filled valve, said gas-filled valve inlet end is connected with said blower fan, and said gas-filled valve outlet side is connected with the said dried cold nitrogen tube that is provided with on the stove of putting out.
Said waste heat boiler is connected through first interchanger with said blower fan, and said first interchanger heat transferring medium outlet is connected with the import of said residual heat boiler for exchanging heat medium.
Also comprise second interchanger that is arranged between said first interchanger and the said blower fan.
Be provided with fly-ash separator between said extraction pipe and the said waste heat boiler; Said fly-ash separator is a ceramic multicyclone dust collector.
Said extraction pipe is connected with said dried top of putting out stove.
Said extraction pipe is connected with the top of said waste heat boiler.
The high temperature gas passage of said waste heat boiler is connected with the high temperature gas passage of said first interchanger.
The high temperature gas passage of said first interchanger is connected with the high temperature gas passage of said waste heat boiler in the bottom of said waste heat boiler.
The heat transferring medium import of said waste heat boiler is arranged on the top of said waste heat boiler.
Said first interchanger is the soft water interchanger, and said second interchanger is a water-to-water heat exchanger, and said heat transferring medium is a soft water.
The utility model is compared with the prior art scheme has following beneficial effect:
(1) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; Between said waste heat boiler and said blower fan, be communicated with first interchanger; The heat transferring medium outlet of said first interchanger is connected with the heat transferring medium import of said waste heat boiler; Such first interchanger has further reduced the temperature of gas to carried out cooling once more by the waste heat boiler expellant gas, guarantees that cooled gas circulation Hui Gan puts out the purpose that stove can reach the cooling formed coke; Temperature raise after heat transferring medium in first interchanger absorbed gas heat simultaneously; But its temperature still is lower than the high-temperature gas in the waste heat boiler, therefore the heat transferring medium after the heat absorption in first interchanger is offered waste heat boiler and uses as heat-eliminating medium, and the heat of high-temperature gas fully is back to use in the system.
(2) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; Between said first interchanger and said blower fan, be provided with second interchanger; Purpose is the gas of further cooling after the cooling of first interchanger, so that the gas that finally obtains can cool off the dried formed coke that puts out in the stove better.
(3) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; Between said extraction pipe and said waste heat boiler, be communicated with fly-ash separator; To put out gas that stove enters into waste heat boiler be the high-temperature flue gas that has mixed the solid particulate matter that formed coke resolves into by dried, and high-temperature flue gas is after fly-ash separator takes off dirt, and solid particulate matter wherein has been removed; Only remaining high-temperature gas; Avoided the solid particulate matter blocking pipe in the high-temperature flue gas, scraping to damage the generation of tube wall phenomenon like this, further, said fly-ash separator is a ceramic multicyclone dust collector; The fly-ash separator of ceramic material can tolerate higher temperature, by the dried not fragile fly-ash separator equipment of high-temperature flue gas that puts out in the stove to be discharged.
(4) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; Extraction pipe is connected with said dried top of putting out stove; The dried high-temperature flue gas that puts out in the stove rises owing to temperature is high and accumulates in dried top of putting out stove, can directly be discharged by the dried extraction pipe that puts out furnace roof portion.
(5) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; Extraction pipe is connected with the top of said waste heat boiler; High-temperature gas is got into by the top of waste heat boiler; In waste heat boiler, from top to bottom flow, can carry out uniform heating, avoid taking place the uneven phenomenon of heat exchange medium temperature in the waste heat boiler the whole heat transferring mediums in the waste heat boiler.
(6) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; The high temperature gas passage of first interchanger is connected with the high temperature gas passage of said waste heat boiler in the bottom of said waste heat boiler; High-temperature gas from top to bottom flows and the heat transferring medium heat exchange in the high temperature gas passage of waste heat boiler; The heat exchange of gas and heat transferring medium that flow to the waste heat boiler bottom is more; Temperature is lower, gets into the temperature that heat exchange in first interchanger can further reduce gas again, makes that finally to enter into the dried gas that puts out stove better to the cooling performance of formed coke.
(7) the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement; The heat transferring medium import of said waste heat boiler is arranged on the top of said waste heat boiler; The heat transferring medium of being introduced by waste heat boiler top matches with the high-temperature gas that is got into by the waste heat boiler top and is convenient to carry out thermal exchange, simultaneously heat transferring medium by the top of waste heat boiler introduce prolonged itself and from top to bottom the mobile high-temperature gas carry out time of thermal exchange.
Description of drawings
For the content that makes the utility model is understood more easily, the utility model combines accompanying drawing and embodiment that the content of the utility model is further explained;
Fig. 1 is the structural representation of the said dry quenching(of coke) flue gas heat of the utility model retrieving arrangement;
Be labeled as in the accompanying drawing: the dried stove that puts out of 1-, the cold nitrogen tube of 2-, 3-extraction pipe, 4-ceramic multicyclone dust collector, 5-waste heat boiler, 6-soft water interchanger, 7-water-to-water heat exchanger, 8-blower fan, 9-gas-filled valve, 10-waste heat boiler water-in, 11-soft water interchanger water outlet.
Embodiment
The structure of the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement is as shown in Figure 1, and it comprises:
On the basis of the above, be back to use the dried temperature of putting out gas in the stove 1, also between said first interchanger and said blower fan 8, be provided with second interchanger in order further to reduce.
As disposable embodiment,, between said extraction pipe 3 and said waste heat boiler 5, be provided with fly-ash separator in order to remove solid particulate matter in the said high-temperature flue gas to obtain high-temperature gas; Preferably, said fly-ash separator is a ceramic multicyclone dust collector 4, said ceramic multicyclone dust collector 4 be arbitrary commercially available prod all can, it adopts the cyclonic separation principle that flue gas is carried out dedusting.
Further, the high temperature gas passage of said waste heat boiler 5 is connected with the high temperature gas passage of said first interchanger; Preferably, the high temperature gas passage of said first interchanger is connected with the high temperature gas passage of said waste heat boiler 5 in the bottom of said waste heat boiler 5.
Wherein, the import of said residual heat boiler for exchanging heat medium can select to be arranged on the top of said waste heat boiler 5, as the embodiment that can select, also can be arranged on arbitrary position of said waste heat boiler 5 according to the actual requirements; Preferably, said first interchanger is a soft water interchanger 6, and said second interchanger is a water-to-water heat exchanger 7, and said heat transferring medium is a soft water.
The working process of the described dry quenching(of coke) flue gas heat of the utility model retrieving arrangement is: the dried high-temperature flue gas that puts out in the stove 1 is drawn in the coupled ceramic multicyclone dust collector that connects 4 through the dried extraction pipe 3 that puts out stove 1 top; After ceramic multicyclone dust collector 4 dedustings; High-temperature gas gets in the waste heat boiler 5 along the top of pipeline by waste heat boiler 5; Flow and carry out thermal exchange along high temperature gas passage with cold soft water in the waste heat boiler 5; Gas after the cooling is got into by waste heat boiler 5 bottoms and carries out the secondary cooling in the soft water interchanger 6; Soft water in soft water interchanger 6 after the heat absorption is discharged by soft water interchanger water outlet 11 and is entered reuse in the waste heat boiler 5 by the coupled waste heat boiler water-in 10 that connects; Enter into water-to-water heat exchanger 7 by soft water interchanger 6 expellant gas and cool off for the third time, by blower fan 8 gas is blown in the gas-filled valve 9 afterwards, gas is input to the dried reuse in the stove 1 of putting out through the cold nitrogen tube 2 that is connected with gas-filled valve 9.
Though the utility model has carried out detailed elaboration through above-mentioned specific embodiment to it; But; Those skilled in the art should be understood that; Any form of being made on this basis that does not exceed the claim protection domain and the variation of details all belong to the claimed scope of the utility model.
Claims (10)
1. dry quenching(of coke) flue gas heat retrieving arrangement comprises:
Extraction pipe (3), said extraction pipe (3) is connected with the dried stove (1) that puts out;
Waste heat boiler (5), said waste heat boiler (5) one ends are connected with said extraction pipe (3), and the other end is connected with blower fan (8);
Gas-filled valve (9), said gas-filled valve (9) inlet end is connected with said blower fan (8), and said gas-filled valve (9) outlet side is connected with the said dried last cold nitrogen tube (2) that is provided with of stove (1) of putting out;
It is characterized in that,
Said waste heat boiler (5) is connected through first interchanger with said blower fan (8), and said first interchanger heat transferring medium outlet is connected with the import of said residual heat boiler for exchanging heat medium.
2. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 1 is characterized in that, also comprises second interchanger that is arranged between said first interchanger and the said blower fan (8).
3. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 1 and 2 is characterized in that, is provided with fly-ash separator between said extraction pipe (3) and the said waste heat boiler (5).
4. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 3 is characterized in that, said fly-ash separator is ceramic multicyclone dust collector (4).
5. according to claim 1 or 2 or 4 described dry quenching(of coke) flue gas heat retrieving arrangements, it is characterized in that said extraction pipe (3) is connected with said dried top of putting out stove (1).
6. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 5 is characterized in that, said extraction pipe (3) is connected with the top of said waste heat boiler (5).
7. according to claim 1 or 2 or 4 or 6 described dry quenching(of coke) flue gas heat retrieving arrangements, it is characterized in that the high temperature gas passage of said waste heat boiler (5) is connected with the high temperature gas passage of said first interchanger.
8. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 7 is characterized in that, the high temperature gas passage of said first interchanger is connected with the high temperature gas passage of said waste heat boiler (5) in the bottom of said waste heat boiler (5).
9. according to claim 1 or 2 or 4 or 6 or 8 described dry quenching(of coke) flue gas heat retrieving arrangements, it is characterized in that the import of said residual heat boiler for exchanging heat medium is arranged on the top of said waste heat boiler (5).
10. dry quenching(of coke) flue gas heat retrieving arrangement according to claim 9 is characterized in that, said first interchanger is soft water interchanger (6), and said second interchanger is water-to-water heat exchanger (7), and said heat transferring medium is a soft water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203778933U CN202226813U (en) | 2011-09-29 | 2011-09-29 | Device for recycling flue gas heat during coke dry quenching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203778933U CN202226813U (en) | 2011-09-29 | 2011-09-29 | Device for recycling flue gas heat during coke dry quenching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202226813U true CN202226813U (en) | 2012-05-23 |
Family
ID=46077411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203778933U Expired - Fee Related CN202226813U (en) | 2011-09-29 | 2011-09-29 | Device for recycling flue gas heat during coke dry quenching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202226813U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055089A (en) * | 2019-05-05 | 2019-07-26 | 山西平遥峰岩煤焦集团有限公司 | A kind of tunnel vehicle type Dry Quenching device |
-
2011
- 2011-09-29 CN CN2011203778933U patent/CN202226813U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055089A (en) * | 2019-05-05 | 2019-07-26 | 山西平遥峰岩煤焦集团有限公司 | A kind of tunnel vehicle type Dry Quenching device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101539371B (en) | First flue gas dust removal and waste heat recovery system for electric stove | |
| CN104930531B (en) | Tail recuperation of heat dedusting integral biomass boiler | |
| CN105276608A (en) | Lignite drying residual heat and water recovery system | |
| CN202284894U (en) | Energy-saving environment-friendly cupola furnace | |
| CN202902252U (en) | Water feeding device using tail gas waste heat of boiler to heat boiler | |
| CN203489244U (en) | Boiler smoke waste-heat applicable system | |
| CN202226813U (en) | Device for recycling flue gas heat during coke dry quenching | |
| CN101539370B (en) | First flue gas dust-removal and waste heat recovery system for electric stove without water cooling flue gas path | |
| CN202390367U (en) | Dry method coke quenching smoke heat recovery device with nitrogen replenisher | |
| CN202246731U (en) | Waste heat recovery and cloth bag dust removing system | |
| CN204153759U (en) | A kind of boiler residual heat recovery chamber | |
| CN202267376U (en) | High-temperature furnace gas purification and recovery device | |
| CN205990424U (en) | Coal gas of converter processing system | |
| CN104383754A (en) | Combined heat-exchange dust remover for production of expanded perlite | |
| CN210570060U (en) | Flue gas waste heat utilization system of steel plant | |
| CN201653168U (en) | Heat pipe type waste heat recovery special apparatus for high temperature high dust laden smoke in metallurgy furnace | |
| CN204007180U (en) | A kind of waste gas residual heat recycling and processing device | |
| CN202675905U (en) | Sedimentation bin cooling and temperature regulating device | |
| CN102304603A (en) | Waste heat recovery and bag-type dust removal system | |
| CN202246548U (en) | Dry quenching preheater | |
| CN205102163U (en) | Dry waste heat of brown coal and water recovery system | |
| CN219390569U (en) | Metallurgical waste heat recovery device for auxiliary heating of dust remover | |
| CN216897271U (en) | Circulating fluidized bed boiler | |
| CN201535621U (en) | Heat accumulating type inclined bottom heating furnace | |
| CN205014401U (en) | Waste heat, coal tar recovery system for boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120523 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |