CN109470072A - A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven - Google Patents
A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven Download PDFInfo
- Publication number
- CN109470072A CN109470072A CN201811251717.8A CN201811251717A CN109470072A CN 109470072 A CN109470072 A CN 109470072A CN 201811251717 A CN201811251717 A CN 201811251717A CN 109470072 A CN109470072 A CN 109470072A
- Authority
- CN
- China
- Prior art keywords
- heat
- waste heat
- working medium
- decoking
- coke oven
- 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.)
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- 239000002918 waste heat Substances 0.000 title claims abstract description 73
- 239000000571 coke Substances 0.000 title claims abstract description 46
- 238000004064 recycling Methods 0.000 title claims abstract description 26
- 238000004939 coking Methods 0.000 title claims abstract description 17
- 239000000779 smoke Substances 0.000 title claims abstract description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 83
- 238000011084 recovery Methods 0.000 claims abstract description 54
- 238000001179 sorption measurement Methods 0.000 claims abstract description 39
- 238000005235 decoking Methods 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000003546 flue gas Substances 0.000 claims abstract description 24
- 238000001035 drying Methods 0.000 claims abstract description 22
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 6
- 230000023556 desulfurization Effects 0.000 claims abstract description 6
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000003610 charcoal Substances 0.000 claims abstract 2
- 239000007789 gas Substances 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 12
- 229910052751 metal Inorganic materials 0.000 claims description 12
- 239000007787 solid Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000003818 cinder Substances 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 8
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 6
- 229930195733 hydrocarbon Natural products 0.000 claims description 6
- 150000002430 hydrocarbons Chemical class 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 6
- 239000007924 injection Substances 0.000 claims description 6
- 239000007791 liquid phase Substances 0.000 claims description 6
- 238000007363 ring formation reaction Methods 0.000 claims description 6
- 239000002893 slag Substances 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 239000003507 refrigerant Substances 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 4
- FYIRUPZTYPILDH-UHFFFAOYSA-N 1,1,1,2,3,3-hexafluoropropane Chemical compound FC(F)C(F)C(F)(F)F FYIRUPZTYPILDH-UHFFFAOYSA-N 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 3
- 230000008901 benefit Effects 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000007792 gaseous phase Substances 0.000 claims description 3
- 239000012071 phase Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 230000007812 deficiency Effects 0.000 claims 1
- 239000000428 dust Substances 0.000 claims 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 6
- 239000005864 Sulphur Substances 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 239000011269 tar Substances 0.000 description 6
- 238000012546 transfer Methods 0.000 description 5
- 241000196324 Embryophyta Species 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 235000011114 ammonium hydroxide Nutrition 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 1
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 description 1
- 235000000100 Hibiscus rosa sinensis Nutrition 0.000 description 1
- 235000000664 Rosa chinensis Nutrition 0.000 description 1
- 235000016785 Rosa della China Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 239000011280 coal tar Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000002641 tar oil Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000002912 waste gas Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0003—Recuperative heat exchangers the heat being recuperated from exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/30—Sulfur compounds
- B01D2257/302—Sulfur oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0056—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for ovens or furnaces
Abstract
A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven provided by the invention, including coke oven (1), bag filter (2), decoking device (3), desulfurizer (4), waste heat recovery device (5), filter device (6), chimney (7).The present invention also provides a kind of anticorrosion anti-coking waste heat of coke-oven flue gas recovery methods.The flue gas waste heat recovery apparatus utilizes the decoking system using special construction, flue gas is devoked before treatment, it is enriched in equipment to largely avoided the tar in flue gas in subsequent denitration, waste heat recycling, desulfurization, influence the service life of equipment, simultaneously, using activated carbon adsorption sulphur removal and nitrogen oxides, while using the active carbon washed in charcoal adsorption process to the low grade residual heat drying of the waste heat of active carbon heating and recycling, the energy has been saved.
Description
Technical field
The invention belongs to coke oven for iron field, in particular to a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven.
Background technique
Coke oven can do high-temperature retorting processing to coal, be efficiently converted to coke, coke-stove gas, coal tar, crude benzol
Equal products are efficient energy conversion kilns.Hanker in coke oven expenditure, the heat of taking out of of 650 DEG C of -700 DEG C of raw coke oven gas accounts for about
36%, it is worth with high recycling.Currently, the industrial application for cooling down treatment process to realize raw coke oven gas is generallyd use,
Traditional handicraft are as follows: Xiang Gaowen raw coke oven gas, which sprays a large amount of 70 DEG C of -75 DEG C of cyclic ammonia waters, makes its cooling, realizes waste heat recycling, however, this
Will lead to high temperature raw coke oven gas take out of heat wasted because of a large amount of evaporations of cyclic ammonia water.
In the 1980s, conduction oil is once used for tedge recycling raw coke oven gas by major part coke-oven plant, Japan takes heat out of:
Tedge is made into jacketed pipe by them, and conduction oil is by jacketed pipe and high temperature raw coke oven gas indirect heat exchange, the high-temperature heat-conductive being heated
Oil can be used for multiple use, such as ammonia still process, Doak Tar Oil, dry as-fired coal etc..Later, Ji hole steel Zeng Wu in China's rose
Pipe has carried out similar test；China's Wuhan Iron and Steel Plant, Ma Gang, Anshan iron and steel plant, ripples steel, Beijing coke-oven plant, two factory of Shenyang coal gas, one iron of this steel,
The many enterprises such as table mountain coke-oven plant once recycled this partial heat using water vapor cooling technology in tedge；In addition, also there is enterprise
Industry is used using nitrogen as the method for medium and high temperature raw coke oven gas indirect heat exchange.
The recycling of existing coke oven coke oven uprising tube raw coke oven gas waste heat takes the structure of thermal, in overall point, in, outer three layers of basic knot
Structure.Internal layer is the cylinder of high temperature resistant, corrosion resistant alloy steel, and raw coke oven gas flows through from bottom to top in cylinder.Centre is core
Heart heat transfer layer, with high thermal conductivity ability, certain thickness high temperature resistant solid dielectric layer are closely attached to the outer wall of inner cylinder, heat transfer
Pipe is in close contact across solid dielectric layer, and with the solid dielectric layer, and flowing through in heat-transfer pipe is to take thermal medium, is being flowed over
The thermal discharge of raw coke oven gas in inner cylinder is absorbed in journey, temperature increases in flow process from bottom to top.On heat-transfer pipe or spiral
It rises and spirals in the solid dielectric, or be uprightly arranged in the solid dielectric layer from bottom to top, solid dielectric layer need to cover entire biography
The outer surface of heat pipe；Outer layer is heat insulation protecting layer, and metal material cylinder posts thermal insulation material on inner wall, to inner cylinder and centre
Core heat transfer layer plays the role of heat preservation and protection, reduces heat loss, is not hit.
However, existing coke oven coke oven uprising tube raw coke oven gas waste heat recycling takes thermal more or less to have the following problems: passing
The unreasonable structural design of thermal process, circulation is not unobstructed enough, heat exchange efficiency is low, raw coke oven gas side wall surface tar bonding causes blocking waste
Gas passage, easily by medium etc. is corroded or not can effectively solve driving and parking and ran at conduction oil coking and blocking conduction oil channel
The problem of expanding with heat and contract with cold of journey, this makes above method perhaps be difficult to successful implementation or is difficult to realize satisfactory effect.
Summary of the invention
Technical problem: in order to solve the defects of prior art, the present invention provides a kind of anticorrosion anti-coking coke oven flue gas
Waste-heat recovery device.
Technical solution: a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven provided by the invention, including coke oven
(1), bag filter (2), decoking device (3), desulfurizer (4), waste heat recovery device (5), filter device (6), cigarette
Chimney (7)；The desulfurizer (4) includes the heat-exchanger rig (33) for being sequentially connected in series cyclization, water washing device (34), drying unit
(35), the first activated carbon adsorption device (31), the second activated carbon adsorption device (32) being arranged in parallel, the heat-exchanger rig (33)
It is inside equipped with the first heat exchanger tube, sets the second heat exchanger tube and third heat exchanger tube in the drying unit (35), first heat exchanger tube,
Second heat exchanger tube connect cyclization with cryogenic fluid pump (36)；Flue and working medium are set in the waste heat recovery device (5)
The working medium pipeline of pipeline, the waste heat recovery device (5) is connect with the working medium inlet pipeline of drum (51)；The drum
It (51) include working medium inlet pipeline, liquid-phase outlet pipeline and gas phase outlet conduit, the gaseous phase outlet pipeline of the drum (51),
Auxiliary heater (52), steam turbine (53) are sequentially connected, liquid-phase outlet pipeline and drying unit (35) of the drum (51)
Third heat exchanger tube connection, the sender property outlet of the steam turbine (53) connect with the third heat exchanger tube of drying unit (35) after again with height
Warm working medium pump (54), waste-heat recovery device (5) working medium pipeline be sequentially connected, formed heat recovery circuit；The coke oven
(1) exhanst gas outlet, bag filter (2), decoking device (3), the first activated carbon adsorption device (31) being arranged in parallel and
Two activated carbon adsorption devices (32), the flue of waste heat recovery device (5), filter device (6), chimney (7) successively connect
It connects.
As an improvement, the decoking device (3) include from top to bottom sequentially connected canyon (31), adsorption chamber (32),
Room (33), cinder chamber (34) are devoked, are equipped with the driving wheel (35) connecting with driving motor, the decoking in the canyon (31)
It is equipped with driven wheel (36) and one group of flame injection device (37) in room (33), is set between the driving wheel (35) and driven wheel (36)
There is the metal mesh (38) that can be rotated around driving wheel (35) and driven wheel (36), be equipped in the cinder chamber (34) and deposit slag box (39),
Movable hermatic door (30) are equipped between the decoking room (33), cinder chamber (34).
As an improvement, the waste-heat recovery device (1) includes flue (11) and working medium pipeline (15), the fume pipe
The side wall in road (11) from outer to inner successively include outer tube wall (12), insulating layer (13), solid dielectric layer (14), inner tube wall (16),
The working medium pipeline (15) is twist set in solid dielectric layer (14), and one group of fin is equipped in the inner tube wall (16)
(17), one group of flow-disturbing ring (18) is equipped in the flue (11), the middle part of the outer tube wall (12) is equipped with expansion joint (19).
As an improvement, using 100 DEG C of critical-temperature or less in the circuit that first heat exchanger tube and the second heat exchanger tube are formed
Medium use following hydrofluorocarbon (HFC) or hydro carbons (HC): R23, R32, R41, R116, R125, R134a, R143a, R152a,
R218,R227ea,R236ea,R236fa,RC318,R404A,R407A,R407B,R407C,R407D, R407E,R410A,
R410B,R413A,R417A,R419A,R421A,R421B,R422A,R422B,R422C, R422D,R423A,R424A,
R425A, R427A, R428A, R507A, R1150, R170, R1270, R290, R744 are as cycle fluid, or by above each work
The multicomponent mixture of matter composition is as cycle fluid.
As an improvement, using water as working medium in the waste heat recovery device (5).
The present invention also provides a kind of anticorrosion anti-coking waste heat of coke-oven flue gas recovery methods, using above-mentioned apparatus, including
Following steps:
(1) coke oven (1) flue gas from outlet discharge after enter bag filter (2) dedusting after enter decoking device (3) in take off
Coke, the tar contained in flue gas are enriched on the metal mesh (38) in decoking device (3), and metal mesh (38) is such as enriched more multifocal
After oil, rotary driving wheel (35) enters metal mesh (38) in decoking room (33), opens flame injection device (37), makes tar
Burning falls to bottom, opens hermatic door (30), and lime-ash, which is fallen into, to be deposited slag box (39), closes hermatic door (30)；
(2) first activated carbon adsorption devices (31), the second activated carbon adsorption device (32) alternating open, the flue gas after decoking
Into in the first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), after sulfur dioxide is tightly held by activated carbon,
Into waste heat recovery device (5) interior recovery waste heat；The active carbon of adsorption saturation is discharged into heat-exchanger rig (33), is changed with first
Working medium heat exchange in heat pipe, then be discharged into water washing device (34), the sulfur-containing compound of lower absorption is washed, then be discharged into drying unit
(35) in, the low grade residual heat pair for heat and waste heat recovery device (5) recycling adsorbed in heat-exchanger rig (33) is utilized
Wet active carbon drying, then be discharged into the first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), circulation
It utilizes；
(3) flue gas after desulfurization enters waste heat recovery device (5) interior recovery waste heat: the work of waste-heat recovery device (5)
Interior into drum (51) after working medium in matter pipeline is heated, the gas of high temperature enters in auxiliary heater (52), and temperature is not
Auxiliary heater (52) are opened when sufficient, close auxiliary heater (52) when temperature is enough, the gas of high temperature enters back into steam turbine
(53) acting in, forms steam exhaust or liquid；The liquid of slightly lower temperature enters in the third heat exchanger tube of heat-exchanger rig (33) to wet
Active carbon drying；Liquid after heat exchange is pumped into the working medium pipeline of waste-heat recovery device (5) through high temperature refrigerant pump (54)；
(4) flue gas after recovery waste heat is discharged after filtering.
The utility model has the advantages that flue gas waste heat recovery apparatus provided by the invention utilizes the decoking system using special construction, locating
Flue gas is devoked before reason, to largely avoided tar in flue gas in subsequent denitration, waste heat recycling, desulfurization in equipment
Interior enrichment influences the service life of equipment, meanwhile, it is inhaled using activated carbon adsorption sulphur removal and nitrogen oxides, while using active carbon
The active carbon washed during attached to the low grade residual heat drying of the waste heat of active carbon heating and recycling, has saved the energy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of anticorrosion anti-coking smoke waste heat recycling device for coke oven of the present invention.
Fig. 2 is the structural schematic diagram of decoking device.
Fig. 3 is the structural schematic diagram of waste-heat recovery device.
Fig. 4 is the partial enlarged view of waste-heat recovery device.
Specific embodiment
The present invention is further illustrated below.
Anticorrosion anti-coking smoke waste heat recycling device for coke oven, including coke oven (1), bag filter (2), decoking device
(3), desulfurizer (4), waste heat recovery device (5), filter device (6), chimney (7)；The desulfurizer (4) include according to
The heat-exchanger rig (33) of secondary series connection cyclization, water washing device (34), drying unit (35), the first activated carbon adsorption dress being arranged in parallel
(31), the second activated carbon adsorption device (32) are set, is equipped with the first heat exchanger tube, the drying unit in the heat-exchanger rig (33)
(35) the second heat exchanger tube and third heat exchanger tube are set in, first heat exchanger tube, the second heat exchanger tube are connect with cryogenic fluid pump (36)
Cyclization；Flue and working medium pipeline are set in the waste heat recovery device (5), the waste heat recovery device (5)
Working medium pipeline is connect with the working medium inlet pipeline of drum (51)；The drum (51) includes working medium inlet pipeline, liquid-phase outlet pipe
Road and gas phase outlet conduit, gaseous phase outlet pipeline, auxiliary heater (52), the steam turbine (53) of the drum (51) successively connect
It connects, the liquid-phase outlet pipeline of the drum (51) is connect with the third heat exchanger tube of drying unit (35), the steam turbine (53)
Sender property outlet connect with the third heat exchanger tube of drying unit (35) after again with high temperature refrigerant pump (54), waste-heat recovery device (5)
Working medium pipeline is sequentially connected, and forms heat recovery circuit；The exhanst gas outlet of the coke oven (1), takes off bag filter (2)
Coke installation (3), the first activated carbon adsorption device (31) being arranged in parallel and the second activated carbon adsorption device (32), waste heat recycling benefit
It is sequentially connected with the flue of device (5), filter device (6), chimney (7).
The waste-heat recovery device (1) includes flue (11) and working medium pipeline (15), the flue (11)
Side wall successively includes outer tube wall (12), insulating layer (13), solid dielectric layer (14), inner tube wall (16), the working medium from outer to inner
Pipeline (15) is twist set in solid dielectric layer (14), and one group of fin (17) is equipped in the inner tube wall (16), described
One group of flow-disturbing ring (18) is equipped in flue (11), the middle part of the outer tube wall (12) is equipped with expansion joint (19).
The decoking device (3) includes sequentially connected canyon (31) from top to bottom, adsorption chamber (32), decoking room
(33), cinder chamber (34), the canyon (31) is interior to be equipped with the driving wheel (35) connecting with driving motor, the decoking room (33)
Interior to be equipped with driven wheel (36) and one group of flame injection device (37), being equipped between the driving wheel (35) and driven wheel (36) can
The metal mesh (38) rotated around driving wheel (35) and driven wheel (36), interior be equipped with of the cinder chamber (34) is deposited slag box (39), described
It devokes and is equipped with movable hermatic door (30) between room (33), cinder chamber (34).
It is used in the circuit that first heat exchanger tube and the second heat exchanger tube are formed using 100 DEG C of critical-temperature media below
Following hydrofluorocarbon (HFC) or hydro carbons (HC): R23, R32, R41, R116, R125, R134a, R143a, R152a, R218,
R227ea,R236ea,R236fa,RC318,R404A,R407A,R407B,R407C,R407D,R407E,R410A, R410B,
R413A,R417A,R419A,R421A,R421B,R422A,R422B,R422C,R422D,R423A, R424A,R425A,
R427A, R428A, R507A, R1150, R170, R1270, R290, R744 are as cycle fluid, or are made of above each working medium
Multicomponent mixture is as cycle fluid.The recovery efficiency of waste heat can be greatly improved using these working medium.
Using water as working medium in the waste heat recovery device (5).
Utilize above-mentioned apparatus Mist heat recovering, comprising the following steps:
(1) coke oven (1) flue gas from outlet discharge after enter bag filter (2) dedusting after enter decoking device (3) in take off
Coke, the tar contained in flue gas are enriched on the metal mesh (38) in decoking device (3), and metal mesh (38) is such as enriched more multifocal
After oil, rotary driving wheel (35) enters metal mesh (38) in decoking room (33), opens flame injection device (37), fires tar
Burn-up drops down onto bottom, opens hermatic door (30), and lime-ash, which is fallen into, to be deposited slag box (39), closes hermatic door (30)；
(2) first activated carbon adsorption devices (31), the second activated carbon adsorption device (32) alternating open, the flue gas after decoking
Into in the first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), after sulfur dioxide is tightly held by activated carbon,
Into waste heat recovery device (5) interior recovery waste heat；The active carbon of adsorption saturation is discharged into heat-exchanger rig (33), is changed with first
Working medium heat exchange in heat pipe, then be discharged into water washing device (34), the sulfur-containing compound of lower absorption is washed, then be discharged into drying unit
(35) in, the low grade residual heat pair for heat and waste heat recovery device (5) recycling adsorbed in heat-exchanger rig (33) is utilized
Wet active carbon drying, then be discharged into the first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), circulation
It utilizes；
(3) flue gas after desulfurization enters waste heat recovery device (5) interior recovery waste heat: the work of waste-heat recovery device (5)
Interior into drum (51) after working medium in matter pipeline is heated, the gas of high temperature enters in auxiliary heater (52), and temperature is not
Auxiliary heater (52) are opened when sufficient, close auxiliary heater (52) when temperature is enough, the gas of high temperature enters back into steam turbine
(53) acting in, forms steam exhaust or liquid；The liquid of slightly lower temperature enters in the third heat exchanger tube of heat-exchanger rig (33) to wet
Active carbon drying；Liquid after heat exchange is pumped into the working medium pipeline of waste-heat recovery device (5) through high temperature refrigerant pump (54)；
(4) flue gas after recovery waste heat is discharged after filtering.
Claims (6)
1. a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven, it is characterised in that: including coke oven (1), bag filter
(2), decoking device (3), desulfurizer (4), waste heat recovery device (5), filter device (6), chimney (7)；The desulfurization
Device (4) include the heat-exchanger rig (33) for being sequentially connected in series cyclization, water washing device (34), drying unit (35), be arranged in parallel the
One activated carbon adsorption device (31), the second activated carbon adsorption device (32), the heat-exchanger rig (33) is interior to be equipped with the first heat exchanger tube,
The second heat exchanger tube and third heat exchanger tube, first heat exchanger tube, the second heat exchanger tube and low temperature work are set in the drying unit (35)
Matter pumps (36) connection cyclization；Flue and working medium pipeline, the waste heat recycling benefit are set in the waste heat recovery device (5)
It is connect with the working medium pipeline of device (5) with the working medium inlet pipeline of drum (51)；The drum (51) include working medium inlet pipeline,
Liquid-phase outlet pipeline and gas phase outlet conduit, gaseous phase outlet pipeline, the auxiliary heater (52), steam turbine of the drum (51)
(53) it is sequentially connected, the liquid-phase outlet pipeline of the drum (51) is connect with the third heat exchanger tube of drying unit (35), the vapour
The sender property outlet of turbine (53) is recycled with high temperature refrigerant pump (54), waste heat again after connecting with the third heat exchanger tube of drying unit (35)
The working medium pipeline of device (5) is sequentially connected, and forms heat recovery circuit；Exhanst gas outlet, the bag-type dust of the coke oven (1)
It is device (2), decoking device (3), the first activated carbon adsorption device (31) being arranged in parallel and the second activated carbon adsorption device (32), remaining
Flue, filter device (6), the chimney (7) of heat reclamation utilization apparatus (5) are sequentially connected.
2. a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven according to claim 1, it is characterised in that: described
Decoking device (3) includes sequentially connected canyon (31) from top to bottom, adsorption chamber (32), decoking room (33), cinder chamber (34),
It is equipped with the driving wheel (35) connecting with driving motor in the canyon (31), is equipped with driven wheel (36) in the decoking room (33)
With one group of flame injection device (37), being equipped between the driving wheel (35) and driven wheel (36) can be around driving wheel (35) and driven
The metal mesh (38) of (36) rotation is taken turns, is equipped with and deposits slag box (39) in the cinder chamber (34), the decoking room (33), cinder chamber
(34) movable hermatic door (30) are equipped between.
3. a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven according to claim 1, it is characterised in that: described
Waste-heat recovery device (1) includes flue (11) and working medium pipeline (15), and the side wall of the flue (11) is from outer to inner
It successively include outer tube wall (12), insulating layer (13), solid dielectric layer (14), inner tube wall (16), the working medium pipeline (15) is in spiral shell
Rotation shape is set in solid dielectric layer (14), and one group of fin (17), the flue (11) are equipped in the inner tube wall (16)
It is inside equipped with one group of flow-disturbing ring (18), the middle part of the outer tube wall (12) is equipped with expansion joint (19).
4. a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven according to claim 1, it is characterised in that: described
Following hydrofluorocarbon is used using 100 DEG C of media below of critical-temperature in the circuit that first heat exchanger tube and the second heat exchanger tube are formed
(HFC) or hydro carbons (HC): R23, R32, R41, R116, R125, R134a, R143a, R152a, R218, R227ea, R236ea,
R236fa,RC318,R404A,R407A,R407B,R407C,R407D,R407E,R410A,R410B,R413A,R417A,
R419A,R421A,R421B,R422A,R422B,R422C,R422D,R423A,R424A,R425A,R427A,R428A,
R507A, R1150, R170, R1270, R290, R744 make as cycle fluid, or by the multicomponent mixture that above each working medium forms
For cycle fluid.
5. a kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven according to claim 1, it is characterised in that: described
Using water as working medium in waste heat recovery device (5).
6. a kind of anticorrosion anti-coking waste heat of coke-oven flue gas recovery method, it is characterised in that: utilize any one of claim 1 to 5
The device, comprising the following steps:
(1) coke oven (1) flue gas enters decoking device (3) interior decoking, cigarette after entering bag filter (2) dedusting after outlet discharge
The tar contained in gas is enriched on the metal mesh (38) in decoking device (3), after metal mesh (38) is such as enriched more tar,
Rotary driving wheel (35) enters metal mesh (38) in decoking room (33), opens flame injection device (37), burns tar
Bottom is dropped down onto, is opened hermatic door (30), lime-ash, which is fallen into, to be deposited slag box (39), is closed hermatic door (30)；
(2) first activated carbon adsorption devices (31), the second activated carbon adsorption device (32) alternating open, the flue gas after decoking enter
In first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), after sulfur dioxide is tightly held by activated carbon, enter
Waste heat recovery device (5) interior recovery waste heat；The active carbon of adsorption saturation is discharged into heat-exchanger rig (33), with the first heat exchanger tube
Interior working medium heat exchange, then be discharged into water washing device (34), the sulfur-containing compound of lower absorption is washed, then be discharged into drying unit (35),
Using the low grade residual heat for heat and waste heat recovery device (5) recycling adsorbed in heat-exchanger rig (33) to wet work
Property charcoal drying, then be discharged into the first activated carbon adsorption device (31) or the second activated carbon adsorption device (32), recycle；
(3) flue gas after desulfurization enters waste heat recovery device (5) interior recovery waste heat: the working medium tube of waste-heat recovery device (5)
After working medium in road is heated, into drum (51), the gas of high temperature enters in auxiliary heater (52), and when temperature deficiency opens
Auxiliary heater (52) are opened, close auxiliary heater (52) when temperature is enough, the gas of high temperature is entered back into steam turbine (53) and done
Function forms steam exhaust or liquid；The liquid of slightly lower temperature, which enters in the third heat exchanger tube of heat-exchanger rig (33), dries wet active carbon
It is dry；Liquid after heat exchange is pumped into the working medium pipeline of waste-heat recovery device (5) through high temperature refrigerant pump (54)；
(4) flue gas after recovery waste heat is discharged after filtering.
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| CN201811251717.8A CN109470072A (en) | 2018-10-25 | 2018-10-25 | A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven |
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| CN201811251717.8A CN109470072A (en) | 2018-10-25 | 2018-10-25 | A kind of anticorrosion anti-coking smoke waste heat recycling device for coke oven |
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