CN204865486U - Fuel catalyst desulfurization dust collector - Google Patents
Fuel catalyst desulfurization dust collector Download PDFInfo
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- CN204865486U CN204865486U CN201520638003.8U CN201520638003U CN204865486U CN 204865486 U CN204865486 U CN 204865486U CN 201520638003 U CN201520638003 U CN 201520638003U CN 204865486 U CN204865486 U CN 204865486U
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- burner
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- tower
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The utility model provides a fuel catalyst desulfurization dust collector, includes burner, waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidification purifying column, fan, chimney, its characterized in that: burner connects waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidification purifying column, fan, chimney in proper order, the burner top is equipped with flue gas inlet, and the burner bottom is equipped with the ash bucket, and the burner upper end is equipped with two air intlet, and air intlet is volute -shaped helical structure, and the burner lower extreme is equipped with the exhanst gas outlet, and burner is total inside and outside two layers, and the inlayer is light pouring material flame retardant coating. The utility model discloses SO2's effluent concentration 60mgNm3, dust effluent concentration 10mgNm3 can adsorb harmful pollutants such as dioxin in the flue gas, heavy metal, makes flue gas discharge to reach standard, avoids causing the pollution to the environment.
Description
Technical field
The utility model relates to a kind of desulfation dust-extraction device of flue gas, especially relates to a kind of fuel catalyst desulfation dust-extraction device, belongs to environmental technology field.
Background technology
It is one of bottleneck restricting economic development that industrial waste gas pollutes, containing a large amount of SO in industrial waste gas
2, CO, NOx and harmful substance, at present SO in flue gas out from fuel catalyst rotary kiln
2, CO, NOx do not burn completely, is just discharged in air, produces serious harm to ecological environment.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned weak point, thus a kind of fuel catalyst desulfation dust-extraction device is provided, the flue gas out do not burnt completely from fuel catalyst rotary kiln, through after burner, allows its Thorough combustion make CO, NOx in flue gas drop to minimum level; The flue-gas temperature of discharging from after burner is higher, and adopt the mode of cogeneration, the thermal energy to greatest extent in recovered flue gas is high-grade electric energy, can reduce the exhaust temperature of flue gas simultaneously, improve dust collection capacity, obtain good environment protecting; Doctor solution consumption is few and utilization rate is high, and in cyclic process, sorbent particle is under mutual rubbing action, constantly the exposed surface that makes new advances, and desulphurization reaction is constantly carried out fully, and desulfurization degree is high; Have desulfuration efficiency high, investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life, SO
2concentration of emission 60mg/Nm
3, dust emission concentration 10mg/Nm
3, the noxious pollutants such as the dioxin in flue gas, heavy metal can be adsorbed, make flue gas qualified discharge, avoid environment.
The technical solution of the utility model is: a kind of fuel catalyst desulfation dust-extraction device, comprise burner, waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidifying purifying column, blower fan, chimney, it is characterized in that: described burner is linked in sequence waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidifying purifying column, blower fan, chimney, described burner top is provided with gas approach, ash bucket is provided with bottom burner, burner upper end is provided with two air intlets, air intlet is scroll casing shape helical structure, burner lower end is provided with exhanst gas outlet, burner has inside and outside two layers, internal layer is lightening casting material flame retardant coating, skin is glass fibre thermal insulation layer, in described waste heat regenerator, finned heat exchanger is installed, the entrance point of finned heat exchanger is connected with the high-pressure outlet end of organic working medium circulating pump, the port of export of finned heat exchanger is connected with the upper flange interface of organic working medium steam turbine after pipeline, the lower interface of organic working medium steam turbine is connected with the air inlet of shell-and-tube cooler by pipeline, the liquid-phase outlet of shell-and-tube cooler is connected with the low pressure inlet end of organic working medium circulating pump by pipeline, organic working medium steam turbine is connected with threephase generator, an end flange interface of shell-and-tube cooler is connected with water circulating pump, another end of shell-and-tube cooler connects lithium-bromide absorption-type refrigerating machine, lithium-bromide absorption-type refrigerating machine is connected with water circulating pump, waste heat regenerator gas outlet is connected with reaction tower air intake, reaction tower air intake bottom is connected with taper ash collection slot, taper ash collection slot connects electric cinder valve, reaction tower air intake top is connected with trunnion, the trunnion top calcium hydroxide that has been linked in sequence dusts mouth, water jet, water jet connects water pump by pipeline, water pump connects water tank, water jet top is connected with exhanst gas outlet, exhanst gas outlet passes through to connect sack cleaner into sack cleaner pipeline, enter on sack cleaner pipeline and be provided with active carbon entrance, active carbon entrance connects mixture generator by active carbon playpipe, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects active carbon feed bin, sack cleaner bottom connects air flume, roots blower is pressed in connecting bottom air flume, air flume side coupled reaction tower circulating line, reaction tower circulating line one tunnel connects recycle feed valve, another road connects ash silo motor-driven valve, ash silo motor-driven valve connects ash silo, ash silo bottom connects electric cinder valve, reaction tower calcium hydroxide dusts mouth by calcium hydroxide playpipe connection mixture generator, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects calcium hydroxide dry powder feed bin, connecting bypass pipeline between described sack cleaner and electronic air inlet valve import, by-pass line is connected with fan inlet, by-pass line is provided with by-passing valve, described electronic air inlet valve outlet is connected with desulfurizing tower air intake, desulfurizing tower air intake lower sides is provided with PH detection control instrument, PH detection control instrument is connected with desulfur pump by control cables, desulfurizing tower air intake bottom connects aeration displacement reaction pond by pipeline, aeration displacement reaction pond connects sedimentation basin, side, aeration displacement reaction pond is provided with roots blower, opposite side is provided with calcium hydroxide feed bin, calcium hydroxide feed bin connects discharger, discharger connects electron helical scale, electron helical scale connects frequency conversion rotary feeder, frequency conversion rotary feeder connects aeration displacement reaction pond, aeration displacement reaction pond pool side is provided with aeration displacement reaction pond PH detection control instrument, aeration displacement reaction pond PH detection control instrument is connected with frequency conversion rotary feeder by control cables, sedimentation basin connects regulating reservoir, sedimentation basin bottom is provided with the outer discharge pipe of waste liquid, regulating reservoir opposite side is provided with NaOH storage tank, regulating reservoir pool side is provided with regulating reservoir PH detection control instrument, regulating reservoir PH detection control instrument is connected with electric charging valve by control cables, desulfurizing tower air intake top is provided with nozzle, nozzle top is provided with demister, demister top is provided with exhanst gas outlet, exhanst gas outlet connects dehumidifying purifying column, damp proof air cleaner is provided with in dehumidifying purifying column, the outer discharge pipe of dehumidifying purifying column waste liquid is provided with bottom dehumidifying purifying column, nozzle is connected with the hose adapter of desulfurizing tower outer wall through desulfurizing tower inwall, hose adapter is connected with shower, shower is fixed on desulfurizing tower outer wall by support, shower is connected with feed tube, feed tube is connected with desulfur pump, desulfur pump connects regulating reservoir.
It is further characterized in that: adopt R717 to be circulation organic working medium.
The beneficial effects of the utility model are: the utility model provides a kind of fuel catalyst desulfation dust-extraction device, the flue gas out do not burnt completely from fuel catalyst rotary kiln, through after burner, allows its Thorough combustion make CO, NOx in flue gas drop to minimum level; The flue-gas temperature of discharging from after burner is higher, and adopt the mode of cogeneration, the thermal energy to greatest extent in recovered flue gas is high-grade electric energy, can reduce the exhaust temperature of flue gas simultaneously, improve dust collection capacity, the environment protecting obtained; Doctor solution consumption is few and utilization rate is high, and in cyclic process, sorbent particle is under mutual rubbing action, constantly the exposed surface that makes new advances, and desulphurization reaction is constantly carried out fully, and desulfurization degree is high; Have desulfuration efficiency high, investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life, SO
2concentration of emission 60mg/Nm
3, dust emission concentration 10mg/Nm
3, the noxious pollutants such as the dioxin in flue gas, heavy metal can be adsorbed, make flue gas qualified discharge, avoid environment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is A-A place sectional view in Fig. 1.
Fig. 3 is B-B place sectional view in Fig. 1.
Fig. 4 is C-C place sectional view in Fig. 1.
Fig. 5 is D-D place sectional view in Fig. 4.
Fig. 6 is E place enlarged drawing in Fig. 1.
Fig. 7 is F place enlarged drawing in Fig. 1.
Fig. 8 is G place enlarged drawing in Fig. 1.
Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, in Fig. 8, 1. burner, 2. waste heat regenerator, 3. reaction tower air intake, 4. taper ash collection slot, 5. electric cinder valve, 6. trunnion, 7. calcium hydroxide dusts mouth, 8. water jet, 9. water pump, 10. water tank, 11. reaction towers, 12. exhanst gas outlets, 13. recycle feed valves, 14. reaction tower circulating lines, 15. ash silo motor-driven valves, 16. ash silos, 17. electric cinder valves, 18. sack cleaners, 19. air flumes, roots blower is pressed in 20., 21. calcium hydroxide dry powder feed bins, 22. dischargers, 23. electron helical scales, 24. frequency conversion rotary feeders, 25. high pressure roots blower fans, 26. mixture generators, 27. calcium hydroxide playpipes, 28. by-passing valves, 29. active carbon feed bins, 30. dischargers, 31. electron helical scales, 32. frequency conversion rotary feeders, 33. high pressure roots blower fans, 34. mixture generators, 35. active carbon playpipes, 36. active carbon entrances, 37. enter sack cleaner pipeline, 38. electronic air inlet valves, 39. blower fans, 40. chimneys, 41. gas approach, 42. air intlets, 43. exhanst gas outlets, 44. ash buckets, 45. lightening casting material flame retardant coatings, 46. glass fibre thermal insulation layers, 47. finned heat exchangers, 48. organic working medium steam turbines, 49. threephase generators, 50. organic working medium circulating pumps, 51. water circulating pumps, 52. shell-and-tube coolers, 53. lithium-bromide absorption-type refrigerating machines, 54. desulfurizing tower air intakes, 55. desulfurizing towers, 56. demisters, 57. exhanst gas outlets, 58. showers, 59. supports, 60. hose adapters, 61. nozzles, 62. feed tubes, 63. damp proof air cleaners, 64. dehumidifying purifying columns, 65. calcium hydroxide feed bins, 66. dischargers, 67. electron helical scales, 68. frequency conversion rotary feeders, 69. aeration displacement reaction ponds, 70. aeration displacement reaction pond PH detection control instrument, 71. roots blowers, 72.PH detection control instrument, 73. desulfur pumps, 74. sedimentation basins, the outer discharge pipe of 75. waste liquids, the outer discharge pipe of 76. dehumidifying purifying column waste liquid, 77. NaOH storage tanks, 78. electric charging valves, 79. regulating reservoir PH detection control instrument, 80. regulating reservoirs.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, shown in Fig. 8, the utility model is a kind of fuel catalyst desulfation dust-extraction device, comprise burner 1, waste heat regenerator 2, reaction tower 11, sack cleaner 18, electronic air inlet valve 38, desulfurizing tower 55, dehumidifying purifying column 64, blower fan 39, chimney 40, it is characterized in that: described burner 1 is linked in sequence waste heat regenerator 2, reaction tower 11, sack cleaner 18, electronic air inlet valve 38, desulfurizing tower 55, dehumidifying purifying column 64, blower fan 39, chimney 40, described burner 1 top is provided with gas approach 41, ash bucket 44 is provided with bottom burner 1, burner 1 upper end is provided with two air intlets 42, air intlet 42 is scroll casing shape helical structure, burner 1 lower end is provided with exhanst gas outlet 43, burner 1 has inside and outside two layers, internal layer is lightening casting material flame retardant coating 45, skin is glass fibre thermal insulation layer 46, in described waste heat regenerator 2, finned heat exchanger 47 is installed, the entrance point of finned heat exchanger 47 is connected with the high-pressure outlet end of organic working medium circulating pump 50, the port of export of finned heat exchanger 47 is connected with the upper flange interface of organic working medium steam turbine 48 after pipeline, the lower interface of organic working medium steam turbine 48 is connected by the air inlet of pipeline with shell-and-tube cooler 52, the liquid-phase outlet of shell-and-tube cooler 52 is connected with the low pressure inlet end of organic working medium circulating pump 50 by pipeline, organic working medium steam turbine 48 is connected with threephase generator 49, an end flange interface of shell-and-tube cooler 52 is connected with water circulating pump 51, another end of shell-and-tube cooler 52 connects lithium-bromide absorption-type refrigerating machine 53, lithium-bromide absorption-type refrigerating machine 53 is connected with water circulating pump 51, waste heat regenerator 2 gas outlet is connected with reaction tower air intake 3, reaction tower air intake 3 bottom is connected with taper ash collection slot 4, taper ash collection slot 4 connects electric cinder valve 5, reaction tower air intake 3 top is connected with trunnion 6, the trunnion 6 top calcium hydroxide that has been linked in sequence dusts mouth 7, water jet 8, water jet 8 connects water pump 9 by pipeline, water pump 9 connects water tank 10, water jet 8 top is connected with exhanst gas outlet 12, exhanst gas outlet 12 passes through to connect sack cleaner 18 into sack cleaner pipeline 37, enter on sack cleaner pipeline 37 and be provided with active carbon entrance 36, active carbon entrance 36 connects mixture generator 34 by active carbon playpipe 35, mixture generator 34 1 tunnel connects high pressure roots blower fan 33, frequency conversion rotary feeder 32 is connected above mixture generator 34, frequency conversion rotary feeder 32 connects electron helical scale 31, electron helical scale 31 connects discharger 30, discharger 30 connects active carbon feed bin 29, sack cleaner 18 bottom connects air flume 19, roots blower 20 is pressed in connecting bottom air flume 19, air flume 19 side coupled reaction tower circulating line 14, reaction tower circulating line 14 1 tunnel connects recycle feed valve 13, another road connects ash silo motor-driven valve 15, ash silo motor-driven valve 15 connects ash silo 16, ash silo 16 bottom connects electric cinder valve 17, the reaction tower calcium hydroxide mouth 7 that dusts connects mixture generator 26 by calcium hydroxide playpipe 27, mixture generator 26 1 tunnel connects high pressure roots blower fan 25, frequency conversion rotary feeder 24 is connected above mixture generator 26, frequency conversion rotary feeder 24 connects electron helical scale 23, electron helical scale 23 connects discharger 22, discharger 22 connects calcium hydroxide dry powder feed bin 21, connecting bypass pipeline between described sack cleaner 18 and electronic air inlet valve 38 import, by-pass line is connected with blower fan 39 import, by-pass line is provided with by-passing valve 28, described electronic air inlet valve 38 outlet is connected with desulfurizing tower air intake 54, desulfurizing tower air intake 54 lower sides is provided with PH detection control instrument 72, PH detection control instrument 72 is connected with desulfur pump 73 by control cables, desulfurizing tower air intake 54 bottom connects aeration displacement reaction pond 69 by pipeline, aeration displacement reaction pond 69 connects sedimentation basin 74, side, aeration displacement reaction pond 69 is provided with roots blower 71, opposite side is provided with calcium hydroxide feed bin 65, calcium hydroxide feed bin 65 connects discharger 66, discharger 66 connects electron helical scale 67, electron helical scale 67 connects frequency conversion rotary feeder 68, frequency conversion rotary feeder 68 connects aeration displacement reaction pond 69, aeration displacement reaction pond 69 pool side is provided with aeration displacement reaction pond PH detection control instrument 70, aeration displacement reaction pond PH detection control instrument 70 is connected with frequency conversion rotary feeder 68 by control cables, sedimentation basin 74 connects regulating reservoir 80, sedimentation basin 74 bottom is provided with the outer discharge pipe 75 of waste liquid, regulating reservoir 80 opposite side is provided with NaOH storage tank 77, regulating reservoir 80 pool side is provided with regulating reservoir PH detection control instrument 79, regulating reservoir PH detection control instrument 79 is connected with electric charging valve 78 by control cables, desulfurizing tower air intake 54 top is provided with nozzle 61, nozzle 61 top is provided with demister 56, demister 56 top is provided with exhanst gas outlet 57, exhanst gas outlet 57 connects dehumidifying purifying column 64, damp proof air cleaner 63 is provided with in dehumidifying purifying column 64, the outer discharge pipe 76 of dehumidifying purifying column waste liquid is provided with bottom dehumidifying purifying column 64, nozzle 61 is connected with the hose adapter 60 of desulfurizing tower 55 outer wall through desulfurizing tower 55 inwall, hose adapter 60 is connected with shower 58, shower 58 is fixed on desulfurizing tower 55 outer wall by support 59, shower 58 is connected with feed tube 62, feed tube 62 is connected with desulfur pump 73, desulfur pump 73 connects regulating reservoir 80.
It is further characterized in that: adopt R717 to be circulation organic working medium.
Described organic working medium is R717, and the power pressure entering low boiling working fluid steam turbine is 1.8MPa, and when the power pressure after expansion work is 0.65MPa, system electromotive power output is 500KW, and Rankine cycle efficiency is 15.5%, and the flue-gas temperature that system is discharged is 80 DEG C.
The course of work of the present utility model:
The flue gas flow 40 × 10 out do not burnt completely from fuel catalyst rotary kiln
4nm
3/ h, temperature 1000 DEG C, dust content 15g/Nm
3enter burner 1 by gas approach 41, be mixed into air through air intlet 42, air mass flow 30 × 10
4nm
3/ h, air and flue gas mixed combustion, the big dust particle sedimentation of carrying in flue gas falls into ash bucket 44, finally burns CO gas, and the flue gas after burning is discharged from exhanst gas outlet 43, and outlet temperature 500 DEG C, enters waste heat regenerator 2;
Simultaneously, organic working medium is driven by organic working medium circulating pump 50, in the finned heat exchanger 47 be installed in waste heat regenerator 2, first absorb the heat of fume afterheat carrier, become saturated vapor, after pressure regulator valve, working substance steam is expansion work in organic working medium steam turbine 48, and drive threephase generator 49 to generate electricity, the working substance steam of discharging from organic working medium steam turbine 48 is condensed into saturated liquid by shell-and-tube cooler 52, send in finned heat exchanger 47 after worker quality liquid being pressurizeed by organic working medium circulating pump 50 again, start new round circulation, from shell-and-tube cooler 52 recirculated water out, cooled by lithium-bromide absorption-type refrigerating machine 53, send in shell-and-tube cooler 52 through water circulating pump 51, start new round circulation, the electric energy that system sends is three-phase alternating current, rated voltage is 380V, electrical network in factory is incorporated to after pressure regulation, or directly give electrical equipment use,
Enter reaction tower 11 from waste heat regenerator 2 flue gas out by the suction function of blower fan 39, accelerated at trunnion 6 place after flue gas enters reaction tower 11, high velocity air forms strong turbulent flow in reaction tower 11, produces efficient sufficient gas-solid contact, through desulfurization process containing high concentrate dust flue gas from reaction tower 11 top exhanst gas outlet 12 out after, udst separation is carried out in the sack cleaner 18 entering rear portion, prevent dust from entering desulfurizing tower 55 and produce blocking, flue gas through sack cleaner 18 enters desulfurizing tower 55 by the effect of blower fan 39, flue gas from bottom to top, when the nozzle 61 by being laid in the middle part of desulfurizing tower 55, due to gas-liquid counter current, the doctor solution that nozzle 61 is sprayed is fluidized state, gas-liquid is fully contacted, flue gas is after nozzle 61 sprays, water smoke is removed by high efficiency demister, in demister exiting flue gas, the concentration of droplet is less than 75mg/m
3, prevent water droplet corrode chimney 40, then through dehumidifying purifying column 64 in damp proof air cleaner 63, collect the fine solid particle in gas, purify air, remove water droplet further, through flowing out dehumidifying purifying column 64 except the flue gas of wet purification, finally entering chimney 40 and being discharged in air,
When the flue-gas temperature entering desulfurizing tower 55 exceedes the allowable temperature of desulfurizing tower, open by-passing valve 28, close electronic air inlet valve 38, make flue gas enter blower fan 39 by by-pass line, discharged by chimney 40, protection desulfurizing tower;
The calcium hydroxide injection apparatus be made up of calcium hydroxide dry powder feed bin 21, discharger 22, electron helical scale 23, frequency conversion rotary feeder 24, high pressure roots blower fan 25, mixture generator 26, calcium hydroxide playpipe 27 etc., according to the exhaust gas volumn of burner 1 and the amount of generation sulfide, calculate Ca (OH)
2consumption, after electron helical scale 23 Weighing, by frequency conversion rotary feeder 24, according to operating mode, powder delivering amount is adjusted by the mode changing rotating speed, powder delivering amount sends into mixture generator 26, from the wind-force of high pressure roots blower fan 25, the powder falling into mixture generator 26 is sent into the calcium hydroxide mouth 7 that dusts by calcium hydroxide playpipe 27 to be entered in reaction tower 11, in reaction tower 11, spread in calcium hydroxide particle in flue gas under mutual rubbing action, constantly (Asia) sulphur sulphur calcium of calcium hydroxide particle Surface Creation is removed, make the calcium hydroxide of the granule interior constantly exposed surface that makes new advances, desulphurization reaction is constantly gone on fully, SO in flue gas
2removal efficiency high, due to SO
3, the sulphur gas such as HF, HCL compares SO
2easier and calcium hydroxide reacts, SO in reaction tower 11
3, HF, HCL removal efficiency can reach more than 98%, in reaction tower 11, reacted calcium hydroxide is by air flume 19, reaction tower circulating line 14 and reaction tower 11 carry out calcium hydroxide iterative cycles, its internal circulating load is controlled by recycle feed valve 13, middle pressure roots blower 20 is provided with bottom air flume 19, calcium hydroxide in air flume 19 is in suspended state all the time, that guarantees to have occurred removes reaction, when after desulfurization operation a period of time, open ash silo motor-driven valve 15, by desulfurization product, dust in flue gas enters ash silo 16, the circulatory system is discharged by electric cinder valve 17, calcium hydroxide induction system is by calcium hydroxide iterative cycles and smoke contacts, circulating ratio reaches 100 ~ 200 times, calcium hydroxide utilization rate is high,
A series of chemical change is there is in above-mentioned technical process:
Ca(OH)
2+SO
2+1/2H
2O→CaSO
3.1/2H
2O+H
2O
Ca(OH)
2+SO
3+H
2O→CaSO
4.2H
2O
Ca(OH)
2+2HCL→CaCL
2.2H
2O
Ca(OH)
2+2HF→CaF
2.2H
2O
CaSO
3.1/2H
2O+1/2O
2+2/3H
2O→CaSO
4.2H
2O
Ca(OH)
2+CO
2→CaCO
3+H
2O
In reaction tower 11, the drying of mixture is relatively uniform, and recycle hydrogen calcium oxide has fabulous mobility, can guarantee the stable of operating mode in reaction tower 11; The particle becoming thicker in sweetening process because of conglomeration drops in reaction tower taper ash collection slot 4 under gravity, and bottom reaction tower, electric cinder valve 5 is discharged;
Secondary desulfuration reaction on cloth bag: under the effect of negative pressure, Ca (OH)
2powder adsorption forms one deck Ca (OH) on cloth bag surface
2bisque, reacts further with the sulfur-containing smoke gas entering deduster.In course of reaction, adopt deduster import and export pressure differential to control deashing frequency, prescribe a time limit when pressure differential exceedes the upper of setting, deashing is carried out to cloth bag, so that Ca (OH)
2powder is constantly adsorbed on cloth bag surface and reacts with sulfur-containing smoke gas.Ca (OH)
2iterative cycles and smoke contacts, Ca (OH)
2utilization rate is high, improves desulfuration efficiency;
The injection apparatus of active carbon is made up of active carbon feed bin 29, discharger 30, electron helical scale 31, frequency conversion rotary feeder 32, high pressure roots blower fan 33, mixture generator 34, active carbon playpipe 35 etc., according to exhaust gas volumn and the generation dioxin of burner 1, the amount of the harmful substances such as heavy metal, the consumption of calculated activity charcoal, after electron helical scale 31 Weighing, by frequency conversion rotary feeder 32, according to operating mode, active carbon conveying capacity is adjusted by the mode changing rotating speed, active carbon sends into mixture generator 34, from the wind-force of high pressure roots blower fan 33, the active carbon falling into mixture generator 34 is sent into active carbon entrance 36 by active carbon playpipe 35 to be entered in sack cleaner pipeline 37, the active carbon sprayed into adsorbs harmful substances such as the dioxin in flue gas and heavy metals,
Water for industrial use in water tank 10 pumps in the water jet 8 of reaction tower 11 by water pump 9, and water, with vaporific ejection, improves Ca (OH)
2with SO
2, SO
3, the heat transfer of the sour gas such as HF, HCL, mass transfer rate, there is neutralization reaction, remove the sour gas in flue gas, improve desulfuration efficiency;
Secondary desulfuration reacts:
Adopt NaOH as desulfurization absorbent, desulfurizing agent is squeezed into desulfurizing tower 55 through desulfur pump 73 and fully contacts with flue gas, make the sulfur dioxide in flue gas and desulfurizing agent NaOH carry out reaction and generate Na
2sO
3, from the Na that desulfurizing tower 55 is discharged
2sO
3solution, through aerating oxidation, generates Na
2sO
4, by adding the regeneration of calcium hydroxide to absorbing liquid and the precipitation of solid by-product, through aeration and sodium, the mixed liquor of calcium displacement flows into sedimentation basin 74, supernatant after precipitation Ash Water Separator, send into regulating reservoir 80, in regulating reservoir 80, when pH value is reduced to a certain degree, after measuring the pH value in regulating reservoir 80 by regulating reservoir PH detection control instrument 79, controlling electric charging valve 78 adds in regulating reservoir 80 by constantly supplementary for the NaOH in NaOH storage tank 77, in desulfurizing tower 55, when pH value is reduced to a certain degree, after measuring the pH value in desulfurizing tower 55 by PH detection control instrument 72, in desulfurizing tower 55, desulfurizing agent is added by controlling desulfur pump 73, circulation like this, heavy ash in sedimentation basin 74 is regularly removed, pick up outward transport,
The conveying device of calcium hydroxide is made up of calcium hydroxide feed bin 65, discharger 66, electron helical scale 67, frequency conversion rotary feeder 68, in aeration displacement reaction pond 69, when pH value is reduced to a certain degree, after measuring the pH value in aeration displacement reaction pond 69 by aeration displacement reaction pond PH detection control instrument 70, after electron helical scale 67 Weighing, by frequency conversion rotary feeder 68, according to the pH value in aeration displacement reaction pond 69, adjust the conveying capacity of calcium hydroxide by the mode changing rotating speed, calcium hydroxide is sent in aeration displacement reaction pond 69;
Desulfurization chemical reaction formula:
SO is absorbed in absorption tower
2:
2NaOH+SO
2→Na
2SO
3+H
2O
Na
2SO
3+SO
2+H
2O→2NaHSO
3
SO will be absorbed
2absorbing liquid deliver to aeration displacement reaction pond 69, carry out the precipitation of the oxidation of inferior sulfate radical, the regeneration of absorbing liquid and solid by-product;
Blast air by roots blower 71, in aeration displacement reaction pond 69, oxidation reaction occurs;
Oxidation reaction: Na
2sO
3+ 0.5O
2→ Na
2sO
4
By adding the regeneration of calcium hydroxide to absorbing liquid and the precipitation of solid by-product.
Displacement reaction: Ca (OH)
2+ Na
2sO
4+ 2H
2o → NaOH+CaSO
42H
2o
Ca(OH)
2+Na
2SO
3→2NaOH+CaSO
3
Ca(OH)
2+2NaHSO
3→Na
2SO
3+CaSO
3·0.5H
2O+0.5H
2O
NaOH and Na of regeneration
2sO
3can recycle Deng desulfurizing agent, NaOH consumes fewer here, and after the circulation of Systemic absorption liquid, in fact main consumption is calcium hydroxide, and therefore operating cost is lower.
As can be seen here, the utility model provides a kind of fuel catalyst desulfation dust-extraction device, and the flue gas out do not burnt completely from fuel catalyst rotary kiln, through after burner, allows its Thorough combustion make CO, NOx in flue gas drop to minimum level; The flue-gas temperature of discharging from after burner is higher, and adopt the mode of cogeneration, the thermal energy to greatest extent in recovered flue gas is high-grade electric energy, can reduce the exhaust temperature of flue gas simultaneously, improve dust collection capacity, obtain good environment protecting; Doctor solution consumption is few and utilization rate is high, and in cyclic process, sorbent particle is under mutual rubbing action, constantly the exposed surface that makes new advances, and desulphurization reaction is constantly carried out fully, and desulfurization degree is high; Have desulfuration efficiency high, investment operating cost is low, and reliability is high, and energy consumption is low, safeguards easily, the advantages such as floor space is little, system long service life, SO
2concentration of emission 60mg/Nm
3, dust emission concentration 10mg/Nm
3, the noxious pollutants such as the dioxin in flue gas, heavy metal can be adsorbed, make flue gas qualified discharge, avoid environment.
Claims (2)
1. a fuel catalyst desulfation dust-extraction device, comprise burner, waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidifying purifying column, blower fan, chimney, it is characterized in that: described burner is linked in sequence waste heat regenerator, reaction tower, sack cleaner, electronic air inlet valve, desulfurizing tower, dehumidifying purifying column, blower fan, chimney, described burner top is provided with gas approach, ash bucket is provided with bottom burner, burner upper end is provided with two air intlets, air intlet is scroll casing shape helical structure, burner lower end is provided with exhanst gas outlet, burner has inside and outside two layers, internal layer is lightening casting material flame retardant coating, skin is glass fibre thermal insulation layer, in described waste heat regenerator, finned heat exchanger is installed, the entrance point of finned heat exchanger is connected with the high-pressure outlet end of organic working medium circulating pump, the port of export of finned heat exchanger is connected with the upper flange interface of organic working medium steam turbine after pipeline, the lower interface of organic working medium steam turbine is connected with the air inlet of shell-and-tube cooler by pipeline, the liquid-phase outlet of shell-and-tube cooler is connected with the low pressure inlet end of organic working medium circulating pump by pipeline, organic working medium steam turbine is connected with threephase generator, an end flange interface of shell-and-tube cooler is connected with water circulating pump, another end of shell-and-tube cooler connects lithium-bromide absorption-type refrigerating machine, lithium-bromide absorption-type refrigerating machine is connected with water circulating pump, waste heat regenerator gas outlet is connected with reaction tower air intake, reaction tower air intake bottom is connected with taper ash collection slot, taper ash collection slot connects electric cinder valve, reaction tower air intake top is connected with trunnion, the trunnion top calcium hydroxide that has been linked in sequence dusts mouth, water jet, water jet connects water pump by pipeline, water pump connects water tank, water jet top is connected with exhanst gas outlet, exhanst gas outlet passes through to connect sack cleaner into sack cleaner pipeline, enter on sack cleaner pipeline and be provided with active carbon entrance, active carbon entrance connects mixture generator by active carbon playpipe, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects active carbon feed bin, sack cleaner bottom connects air flume, roots blower is pressed in connecting bottom air flume, air flume side coupled reaction tower circulating line, reaction tower circulating line one tunnel connects recycle feed valve, another road connects ash silo motor-driven valve, ash silo motor-driven valve connects ash silo, ash silo bottom connects electric cinder valve, reaction tower calcium hydroxide dusts mouth by calcium hydroxide playpipe connection mixture generator, mixture generator one tunnel connects high pressure roots blower fan, frequency conversion rotary feeder is connected above mixture generator, frequency conversion rotary feeder connects electron helical scale, electron helical scale connects discharger, discharger connects calcium hydroxide dry powder feed bin, connecting bypass pipeline between described sack cleaner and electronic air inlet valve import, by-pass line is connected with fan inlet, by-pass line is provided with by-passing valve, described electronic air inlet valve outlet is connected with desulfurizing tower air intake, desulfurizing tower air intake lower sides is provided with PH detection control instrument, PH detection control instrument is connected with desulfur pump by control cables, desulfurizing tower air intake bottom connects aeration displacement reaction pond by pipeline, aeration displacement reaction pond connects sedimentation basin, side, aeration displacement reaction pond is provided with roots blower, opposite side is provided with calcium hydroxide feed bin, calcium hydroxide feed bin connects discharger, discharger connects electron helical scale, electron helical scale connects frequency conversion rotary feeder, frequency conversion rotary feeder connects aeration displacement reaction pond, aeration displacement reaction pond pool side is provided with aeration displacement reaction pond PH detection control instrument, aeration displacement reaction pond PH detection control instrument is connected with frequency conversion rotary feeder by control cables, sedimentation basin connects regulating reservoir, sedimentation basin bottom is provided with the outer discharge pipe of waste liquid, regulating reservoir opposite side is provided with NaOH storage tank, regulating reservoir pool side is provided with regulating reservoir PH detection control instrument, regulating reservoir PH detection control instrument is connected with electric charging valve by control cables, desulfurizing tower air intake top is provided with nozzle, nozzle top is provided with demister, demister top is provided with exhanst gas outlet, exhanst gas outlet connects dehumidifying purifying column, damp proof air cleaner is provided with in dehumidifying purifying column, the outer discharge pipe of dehumidifying purifying column waste liquid is provided with bottom dehumidifying purifying column, nozzle is connected with the hose adapter of desulfurizing tower outer wall through desulfurizing tower inwall, hose adapter is connected with shower, shower is fixed on desulfurizing tower outer wall by support, shower is connected with feed tube, feed tube is connected with desulfur pump, desulfur pump connects regulating reservoir.
2. a kind of fuel catalyst desulfation dust-extraction device according to claim 1, is characterized in that: adopt R717 to be circulation organic working medium.
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| CN201520638003.8U CN204865486U (en) | 2015-08-19 | 2015-08-19 | Fuel catalyst desulfurization dust collector |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520638003.8U CN204865486U (en) | 2015-08-19 | 2015-08-19 | Fuel catalyst desulfurization dust collector |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432953A (en) * | 2018-11-27 | 2019-03-08 | 宁夏天宝炭素有限公司 | Environment protection-type electrode paste raw material calcines flue gas heat and utilizes system |
| CN110064303A (en) * | 2019-04-24 | 2019-07-30 | 南京航空航天大学 | Based on the supercritical carbon dioxide desulfurization integrated device and method of power generation peculiar to vessel |
| CN114280217A (en) * | 2021-12-24 | 2022-04-05 | 安徽科元精工科技发展有限公司 | Aviation fuel oil automatic ignition experimental device and experimental method thereof |
-
2015
- 2015-08-19 CN CN201520638003.8U patent/CN204865486U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432953A (en) * | 2018-11-27 | 2019-03-08 | 宁夏天宝炭素有限公司 | Environment protection-type electrode paste raw material calcines flue gas heat and utilizes system |
| CN109432953B (en) * | 2018-11-27 | 2023-12-29 | 宁夏天宝炭素有限公司 | Environment-friendly electrode paste raw material calcination flue gas heat utilization system |
| CN110064303A (en) * | 2019-04-24 | 2019-07-30 | 南京航空航天大学 | Based on the supercritical carbon dioxide desulfurization integrated device and method of power generation peculiar to vessel |
| CN114280217A (en) * | 2021-12-24 | 2022-04-05 | 安徽科元精工科技发展有限公司 | Aviation fuel oil automatic ignition experimental device and experimental method thereof |
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