CN208829589U - A kind of tedge waste-heat recovery device - Google Patents
A kind of tedge waste-heat recovery device Download PDFInfo
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- CN208829589U CN208829589U CN201821594313.4U CN201821594313U CN208829589U CN 208829589 U CN208829589 U CN 208829589U CN 201821594313 U CN201821594313 U CN 201821594313U CN 208829589 U CN208829589 U CN 208829589U
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- inner cylinder
- coke oven
- tedge
- heat
- raw coke
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- 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
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- Coke Industry (AREA)
Abstract
The utility model discloses a kind of tedge waste-heat recovery devices, including tedge, raw coke oven gas air deflector, radiation blinds, the tedge includes outer cylinder, inner cylinder, the annular closed cavity between outer cylinder and inner cylinder, annular closed cavity bottom is equipped with water inlet, water out is equipped at the top of closed cavity, the inner cylinder lower end is connect with oven top of coke oven, inner cylinder upper end is connect with bridge tube, raw coke oven gas air deflector is equipped at the inner cylinder lower entrances, it is equipped with disc at inner cylinder upper outlet and radiates blinds, is coated with thermostable heat-conductive coating on inner cylinder inner wall.The utility model sufficiently recycles radiant heat, improve heat exchanger integrated heat transfer coefficient, strengthen in terms of thermally conductive, convective heat transfer, radiant heat transfer three, solve the problems, such as that high temperature raw coke oven gas waste heat recovery efficiency is low, it can farthest Mist heat recovering, it can guarantee that heat exchanger continuously works normally under complex working condition again, to realize the purpose of raw coke oven gas heat recovery.
Description
Technical field
The utility model relates to a kind of tedge waste-heat recovery devices.
Background technique
According to national " 12th Five-Year Plan " planning for circular economic development and Economic Sustainable Development Strategy related industry policy, carry out
The technical research that residual heat and energy in steel and iron industry process utilizes, for currently without the residual heat and energy utilized or utilization efficiency is low
Efficient the problem of utilizing is carried out, the efficient ideasand methods utilized are designed and is implemented as an extremely urgent task.
Coking coal is isolated air in coke oven and heats destructive distillation, generates coke, while generating a large amount of raw coke oven gas.It is released from coke furnace carbonization chamber
The waste heat taken out of of 950 DEG C~1050 DEG C red cokes account for the 37% of coke oven expenditure heat；650 DEG C~800 DEG C coal oven dithio-gas are taken out of remaining
Heat accounts for the 36% of coke oven expenditure heat；180 DEG C~230 DEG C coke oven flue exhaust gas take 17% that heat accounts for coke oven expenditure heat out of；Furnace body table
Face heat loss accounts for the 10% of coke oven expenditure heat.For the waste heat that coke is taken out of, it there is now the dry coke quenching auxiliary recycling of mature and reliable；
It can be used for coal damping to stack gases to utilize；The consumption of this part can be reduced by heat preservation technology for furnace body heat dissipation；And it is right
In the waste heat of raw coke oven gas, the main recovery process in coke-oven plant mainly has following 4 kinds at present:
1. recycling ammonia cooling technology
Using the cooling raw coke oven gas of a large amount of 70 DEG C~75 DEG C cyclic ammonia waters of sprinkling, a large amount of steamings of the high temperature raw coke oven gas because of cyclic ammonia water
It sends out and is cooled to 82 DEG C~85 DEG C, then be cooled to 22 DEG C~35 DEG C through primary cooler, dropped the temperature of raw coke oven gas using recirculated water
Down to 21 DEG C or so, chemical products is finally recycled.
Technical disadvantages: this method cannot make full use of the raw coke oven gas waste heat that tedge escapes, and handle
The energy mediums such as a large amount of cyclic ammonia water, coal gas primary cooler circulating water for cooling and electric energy, this kind of method are also wasted in the process
The latent heat in raw coke oven gas has mainly been recycled, and it is very few to Exposure degree, while resource is also greatly wasted, it is unfavorable for sustainable
Development.
2. Ascension Pipe Gasification cooling technology
Coke oven coke oven uprising tube is changed to tedge water leg waste heat recovery device, coal oven dithio-gas passes through in tedge
Wall delivers heat to heat exchanger, absorbs the steam water interface that heat generates and leads to drum by carbonated drink connecting pipe, comes out from drum
Low-pressure saturated steam is incorporated to coke-oven plant's low-pressure steam pipe network by jet chimney.
Technical disadvantages: replacement coke oven coke oven uprising tube is water leg tedge, by water and raw coke oven gas in the heat exchange for rising pipeline section
The method for carrying out recovery waste heat is very few to the recycling of radiant heat, and the coefficient of heat transfer is lower, and a large amount of waste heat is scattered and disappeared by way of radiation
Fall；Easily dry combustion method occur since liquid to steam ratio is too small on tedge top leads to equipment damage, and leads lower part is cold since raw coke oven gas gathers
Cause graphite deposits are serious, tar is precipitated, and are unfavorable for the operation of coking equipment safety and steady.
3. thermally conductive oil lagging technology
It transform tedge as spirally-wound type heat exchanger, using conduction oil as heat transferring medium, makes conduction oil circulation by oil pump
With the waste heat for being recovered to conduction oil is used to dry coking coal.
Technical disadvantages: conduction oil is also easy to produce thermal metamorphism in use, influences system operation；System investments operating cost
It is high；Conduction oil leakage will cause serious pollution.
4. heat pipe heat exchanging technology
Separate heat pipe is set in tedge flame retardant coating inner wall, heat pipe upper/lower terminal, which is connected at upper and lower header, to converge
Collection, upper header pass through pressure line with lower collecting box respectively and are connected with separate heat pipe, thus constitute a raw coke oven gas waste heat recycling
System.Circulating water in system becomes vapor after heat absorption, separate heat pipe release end of heat in drum is sent into along pipeline, into vapour
Circulation canal；It is evacuated in heat pipe, and is passed through the water centainly interrogated as a heat transfer medium；Water is changed with heat pipe heat absorption end in contact
Heat generates steam and is used.
Technical disadvantages: the technology is also easy to produce bonding and blocks serious phenomenon；System cost is excessively high.
Main several ways are recycled at present by analyzing raw coke oven gas, and traditional raw coke oven gas heat recovery technology all exists
Certain limitation.
Summary of the invention
In order to solve the above-mentioned technical problem, the utility model is provided more than the tedge that a kind of structure is simple, work efficiency is high
Heat recovery apparatus.
The technical solution that the utility model solves the above problems is: a kind of tedge waste-heat recovery device, including tedge,
Raw coke oven gas air deflector, radiation blinds, the tedge include outer cylinder, inner cylinder, the annular closed sky between outer cylinder and inner cylinder
Chamber, closed cavity bottom are equipped with water inlet, are equipped with water out at the top of closed cavity, and the inner cylinder lower end is connect with oven top of coke oven,
Inner cylinder upper end is connect with bridge tube, and raw coke oven gas air deflector is equipped at the inner cylinder lower entrances, is equipped with disk at inner cylinder upper outlet
Shape radiates blinds, is coated with thermostable heat-conductive coating on inner cylinder inner wall.
Above-mentioned tedge waste-heat recovery device, the radiation blinds uses multi-layer circular blinds Boulez, to constitute multiple
Co-annular passages, radiate blinds and raw coke oven gas air deflector is fixed on tedge inner cylinder by clamp device.
Above-mentioned tedge waste-heat recovery device, every layer of louver vane form an angle with horizontal plane, which can be according to famine
The mobility status of coal gas and change, the effect of water conservancy diversion and reflected radiation heat is played to flue gas.
Above-mentioned tedge waste-heat recovery device, the inner cylinder are made using elastic material, raw coke oven gas air deflector and circle
Dish type radiates blinds using not viscous oil material, slagging prevention and extension oil.
The utility model has the beneficial effects that:
1, the utility model sufficiently recycles radiant heat in tedge, improves heat exchanger integrated heat transfer coefficient, from it is thermally conductive,
Three convective heat transfer, radiant heat transfer aspects are strengthened, and solve the problems, such as that high temperature raw coke oven gas waste heat recovery efficiency is low, can
Farthest Mist heat recovering, and can guarantee that heat exchanger continuously works normally under complex working condition, to realize more than flue gas
The purpose that recuperation of heat utilizes.
2, the utility model adds a disc radiation blinds in tedge exit, and radiation blinds carries raw coke oven gas
Radiant heat reflexes to tedge heat exchange wall surface, increases radiation heat transfer area and radiations heat energy；Disc radiates what blinds was formed
Annular channel outlet flows out raw coke oven gas in pipe uniformly, reduces raw coke oven gas transverse temperature difference in tedge, improves heat exchanger heat exchange temperature
Difference, at the same in also constant tedge raw coke oven gas mean temperature, prevent " coking ", " hanging oil " phenomenon from generating.
3, the utility model adds a raw coke oven gas air deflector in tedge inlet, and raw coke oven gas air deflector makes raw coke oven gas upper
It is rotated and is risen with certain rotation speed in riser inner cylinder, increase residence time of the raw coke oven gas in tedge inner cylinder, so that
Raw coke oven gas exchanges heat more abundant with tedge inner cylinder.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the top view of the utility model tedge.
Fig. 3 is the structural schematic diagram that blinds is radiated in Fig. 1.
Fig. 4 is the scheme of installation that blinds is radiated in Fig. 1.
Fig. 5 is the installation partial enlarged view that blinds is radiated in Fig. 1.
Fig. 6 is the installation top view that blinds is radiated in Fig. 1.
Fig. 7 is the structural schematic diagram of raw coke oven gas air deflector in Fig. 1.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and examples.
As Figure 1-Figure 2, a kind of tedge waste-heat recovery device, including tedge, raw coke oven gas air deflector 11, radiation hundred
Leaf 4, the tedge include outer cylinder 1, inner cylinder 3, the annular closed cavity 2 between outer cylinder 1 and inner cylinder 3,2 bottom of closed cavity
Portion is equipped with water inlet, and water out is equipped at the top of closed cavity 2, and the inner cylinder 3 is made using elastic material, 3 lower end of inner cylinder,
Upper end is connect with 9 furnace roof of coke oven, bridge tube 8 respectively by ring flange 7, and raw coke oven gas air deflector is equipped at 3 lower entrances of inner cylinder
11, it is equipped with disc at 3 upper outlet of inner cylinder and radiates blinds 4, is coated with thermostable heat-conductive coating 5(for example on 3 inner wall of inner cylinder:
RLHY-2339), to form one layer of hard Ceramic glaze hard shell in 3 inner wall of tedge inner cylinder, play protection furnace body, extend
The thermally conductive effect of furnace life, enhancing, significantly improves the heat transfer effect of heat exchanger, energy conservation 5%~30%.The outer cylinder 1, inner cylinder 3,
Thermostable heat-conductive coating 5, radiation blinds 4 collectively form heat exchanger.
As shown in figures 3 to 6, the radiation blinds 4 is using seven layers of round blinds Boulez, every layer of louver vane and horizontal plane
Shape forms an angle, which can change according to the mobility status of raw coke oven gas, to flue gas play water conservancy diversion and reflected radiation heat
Effect has thermal insulation property.Seven layers of round blinds constitute multiple co-annular passages, and four clamp devices 10 are fixed on inner cylinder 3
Inner wall radiates blinds 4 and is fixed on tedge inner cylinder 3 by four clamp devices 10 close to exit.
Thermostable heat-conductive coating 5(is coated with for example in the high temperature side heat exchange surface: RLHY-2339), rising tube passage
Inner wall forms one layer of hard Ceramic glaze hard shell, plays and protects furnace body, prolonging furnace age, enhancing thermally conductive.Significantly improve heat exchanger
Heat transfer effect, energy conservation 5%~30%.
The utility model is anti-using the radiant heat that disc radiation blinds 4 carries raw coke oven gas with the blade of certain angle
It is incident upon tedge heat exchange wall surface (and 3 wall surface of inner cylinder), increases radiation heat transfer area and radiations heat energy；Disc radiates blinds 4
The annular channel outlet of formation flows out raw coke oven gas in pipe uniformly, reduces raw coke oven gas transverse temperature difference in tedge, improves and change
Hot device heat transfer temperature difference, at the same in also constant tedge raw coke oven gas mean temperature, prevent " coking ", " hanging oil " phenomenon from generating；
The radiant emissivity with higher of thermostable heat-conductive coating 5, improves radiation heat transfer ability, while it is intraluminal to improve rising
Temperature；Raw coke oven gas air deflector 11 makes raw coke oven gas rotate rising in tedge inner cylinder 3, increases raw coke oven gas in tedge inner cylinder 3
In residence time so that raw coke oven gas and tedge inner cylinder 3 sufficiently exchange heat；The utility model improves heat exchanger using a variety of methods
Heat transfer coefficient increases the recycling of radiant heat, improves the stability and safety of waste-heat recovery device operation, can be maximum
Recycle to degree the waste heat of discharge raw coke oven gas.
The working process of the utility model is as follows: raw coke oven gas enters annular closed cavity 2 from the raw coke oven gas entrance of 9 furnace roof of coke oven
(raw coke oven gas flow region), softened water enter cavity 6(softened water water flowing region from the water inlet of 2 bottom of closed cavity), circle
Dish type radiates blinds 4 and raw coke oven gas from bottom to top is shunted uniformly export, and in radiant heat entrained by raw coke oven gas reflexed to
3 inner walls of cylinder, heat pass to softened water by inner cylinder 3, and steam water interface is generated after softened water heat absorption and completes heat exchange, water changes
Supply user utilizes after the water out at 2 top of closed cavity after heat, and raw coke oven gas is then exported into chemical products from raw coke oven gas and returned
Knock off skill.Clamp device 10 is fixed on 3 inner wall of tedge inner cylinder, and is disposed adjacent to exit, and disc radiation disk passes through
Nut on clamp device 10 is connect with tedge inner cylinder 3.Raw coke oven gas air deflector 11 is arranged in 3 inner wall entrance of tedge inner cylinder
Place, for raw coke oven gas when tedge flows through raw coke oven gas air deflector 11 from the bottom to top, raw coke oven gas air deflector 11 provides a rotation speed
Degree, raw coke oven gas, which is rotated in tedge inner cylinder 3 with certain rotation speed, to be risen, and path of the raw coke oven gas in tedge inner cylinder 3 increases
Add, increase the residence time in tedge inner cylinder 3, so that the heat that raw coke oven gas is transmitted to inner cylinder 3 increases.
Claims (4)
1. a kind of tedge waste-heat recovery device, it is characterised in that: described including tedge, raw coke oven gas air deflector, radiation blinds
Tedge includes outer cylinder, inner cylinder, the annular closed cavity between outer cylinder and inner cylinder, and closed cavity bottom is equipped with water inlet,
Water out is equipped at the top of closed cavity, the inner cylinder lower end is connect with oven top of coke oven, and inner cylinder upper end is connect with bridge tube, the inner cylinder
It is equipped with raw coke oven gas air deflector at lower entrances, disc is equipped at inner cylinder upper outlet and radiates blinds, is coated on inner cylinder inner wall resistance to
High-temperature heat-conductive coating.
2. tedge waste-heat recovery device according to claim 1, it is characterised in that: the radiation blinds is using multilayer circle
Shape blinds Boulez radiates blinds and raw coke oven gas air deflector is fixed on by clamp device to constitute multiple co-annular passages
On tedge inner cylinder, radiation blinds makes the temperature inside tedge more uniform, reduces the laterally temperature of tedge inner cylinder inner wall
Difference.
3. tedge waste-heat recovery device according to claim 2, it is characterised in that: every layer of louver vane and horizontal plane shape
It forms an angle, which can change according to the mobility status of raw coke oven gas, and the work of water conservancy diversion and reflected radiation heat is played to flue gas
With.
4. tedge waste-heat recovery device according to claim 1, it is characterised in that: the inner cylinder uses elastic material system
It forms, raw coke oven gas air deflector and disc radiation blinds are using not viscous oil material, slagging prevention and extension oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594313.4U CN208829589U (en) | 2018-09-28 | 2018-09-28 | A kind of tedge waste-heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821594313.4U CN208829589U (en) | 2018-09-28 | 2018-09-28 | A kind of tedge waste-heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208829589U true CN208829589U (en) | 2019-05-07 |
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ID=66317236
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821594313.4U Expired - Fee Related CN208829589U (en) | 2018-09-28 | 2018-09-28 | A kind of tedge waste-heat recovery device |
Country Status (1)
| Country | Link |
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| CN (1) | CN208829589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268466A (en) * | 2020-10-28 | 2021-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | Process device and method for recovering metallurgical waste heat |
| CN112284146A (en) * | 2020-10-28 | 2021-01-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for recovering metallurgical waste heat |
-
2018
- 2018-09-28 CN CN201821594313.4U patent/CN208829589U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112268466A (en) * | 2020-10-28 | 2021-01-26 | 攀钢集团攀枝花钢铁研究院有限公司 | Process device and method for recovering metallurgical waste heat |
| CN112284146A (en) * | 2020-10-28 | 2021-01-29 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for recovering metallurgical waste heat |
| CN112284146B (en) * | 2020-10-28 | 2022-03-22 | 攀钢集团攀枝花钢铁研究院有限公司 | Device and method for recovering metallurgical waste heat |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190507 Termination date: 20200928 |
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| CF01 | Termination of patent right due to non-payment of annual fee |