CN108970358A - A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method - Google Patents

A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method Download PDF

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Publication number
CN108970358A
CN108970358A CN201810838710.XA CN201810838710A CN108970358A CN 108970358 A CN108970358 A CN 108970358A CN 201810838710 A CN201810838710 A CN 201810838710A CN 108970358 A CN108970358 A CN 108970358A
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smoke
guide pipe
fixedly connected
chamber
flue gas
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王振泽
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    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • 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
    • B01D53/04—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 with stationary adsorbents
    • 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
    • B01D53/14—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 absorption
    • B01D53/1456—Removing acid components
    • 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
    • B01D53/14—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 absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
    • F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • F23J15/04—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material using washing fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/102—Carbon
    • 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
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Treating Waste Gases (AREA)

Abstract

The present invention relates to a kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing methods, including shell, denitration chamber, desulfurization chamber, CO process chamber, first dirt pocket, second dirt pocket, smoke-intake pipe, water tank, water supply pipe, water pump, water cooling tube, partition, stomata, first smoke guide pipe, first motor, first rotating shaft, mounting blocks, desulfurization plate, second smoke guide pipe, third smoke guide pipe, second motor, second shaft, flabellum, mounting plate, aluminium column, copper wire, 4th smoke guide pipe, by-pass filtration plate, secondary filtration plate, three-stage filtration plate, smoke exhaust pipe, air valve, adsorb storehouse and adsorbing sphere.A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method of the present invention have the features such as recovery efficiency is high, and effect is good, and with strong points.

Description

A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method
Technical field
The present invention relates to thermal power station's technical field, specially a kind of thermal power station's Industrial Boiler off-gas recovery processing unit and place Reason method.
Background technique
Heat power station abbreviation thermal power station is using combustible (such as coal) as the factory of fuel production electric energy.It The basic process of production is: fuel heating water in burning generates steam, the chemical energy of fuel is transformed into thermal energy, vapour pressure is pushed Dynamic steam turbine rotation, thermal energy are converted into mechanical energy, and then steam turbine drives generator rotation, and mechanical energy is transformed into electric energy.? In the power generation process of thermal power station, Industrial Boiler is main thermal powerplant, and in boiler running process, energy consumption is high, dirty Contaminate the flue gas emission that one of the main reason for high is exactly boiler.On the one hand boiler smoke problem is excessively high exhaust gas temperature, separately It on the one hand is exactly the direct pollution of flue gas pollutant.Existing boiler smoke reclaimer recovery efficiency is low, and effect is poor, and nothing Method makees specific aim processing to various pollutants.
Summary of the invention
Present invention solves the technical problem that being to overcome the boiler smoke recovery efficiency of the prior art low, effect is poor, and The defect that various pollutants can not be made with specific aim processing provides a kind of thermal power station's Industrial Boiler off-gas recovery processing unit and place Reason method.A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method have recovery efficiency high, and effect is good, And the features such as with strong points.
To achieve the above object, the invention provides the following technical scheme: a kind of thermal power station's Industrial Boiler off-gas recovery is handled Device, including shell, the inner cavity of the shell are respectively arranged with denitration chamber, desulfurization chamber, CO2Process chamber, the first dirt pocket and Two dirt pockets, the denitration chamber, desulfurization chamber, CO2Process chamber, the first dirt pocket and the second dirt pocket from left to right successively adjacent row Column, the side side wall of the shell offer smoke-intake pipe, and the other end of the smoke-intake pipe runs through the side wall of shell and is fixedly connected Water tank is installed at the top of the side wall of denitration chamber, the shell, water supply pipe is fixedly connected at the top of the water tank, and described The side wall of water tank is equipped with water pump, and water cooling tube is fixedly connected on the water pump, and the water cooling tube runs through the top exterior walls of shell And it is wrapped on the tube wall of smoke-intake pipe, and the end of the water cooling tube is fixedly connected on the side wall of water tank, contains in the denitration chamber There is NH4OH solution, and the inner cavity of the denitration chamber is fixedly connected with partition, several stomatas are offered on the partition, it is described The first smoke guide pipe is fixedly connected at the top of denitration chamber, the other end of first smoke guide pipe is fixedly connected on the side of desulfurization chamber Wall, the inner cavity top of the desulfurization chamber are equipped with first motor, and the output end of the first motor is fixedly connected with first rotating shaft, The axle body two sides of the first rotating shaft are fixedly connected with several pieces of mounting blocks, and every piece of mounting blocks are bolted to connection There is desulfurization plate, the desulfurization chamber is fixedly connected with the second smoke guide pipe on the side wall far from the first smoke guide pipe side, described second leads The other end of smoke pipe runs through CO2The top exterior walls of process chamber simultaneously extend to CO2The inner cavity of process chamber, the CO2It is filled in process chamber Alcohol ammonia solution, and the CO2The top of process chamber is also fixedly connected with third smoke guide pipe, and the other side of third smoke guide pipe is fixed to be connected Connect the side wall in the first dirt pocket, the inner cavity top of first dirt pocket is equipped with the second motor, second motor it is defeated Outlet is fixedly connected with the second shaft, if the two sides axle body of second shaft is fixedly connected with dry plate flabellum, described first is removed The inner cavity two sides of dirt room are fixedly connected with several pieces of mounting plates, are fixedly connected to aluminium between every adjacent two pieces of mounting plates Column is wound with copper wire on the aluminium column, is fixedly connected on the side wall of first dirt pocket far from third smoke guide pipe side Four smoke guide pipes, the 4th smoke guide pipe run through the side wall of the second dirt pocket and extend in the second dirt pocket, second dedusting The inner cavity of room is respectively arranged with by-pass filtration plate, secondary filtration plate and three-stage filtration plate, the by-pass filtration plate, secondary filtration plate With inner cavity top and the bottom in the second dirt pocket are respectively fixedly connected at the top and bottom of three-stage filtration plate, the shell is separate Smoke exhaust pipe is fixedly connected on the side wall of smoke-intake pipe side, the nozzle of the smoke exhaust pipe, the first smoke guide pipe and third smoke guide pipe is equal Air valve is installed.
Preferably, the two sides plate face of the desulfurization plate is stained with granular activated carbon, and the desulfurization plate is rectangular slab, and It is equally distributed in first rotating shaft.
Preferably, it is mounted on HEPA high efficiency particulate air on the by-pass filtration plate, secondary filtration plate and three-stage filtration plate, Its mesh number is sequentially increased.
Preferably, several absorption storehouses are provided in the smoke exhaust pipe, the absorption storehouse is spherical shape chamber structure, and each institute It states in absorption storehouse filled with adsorbing sphere.
Preferably, the adsorbing sphere is sponge spherical structure, and outer diameter is equal to the internal diameter in absorption storehouse.
Preferably, a kind of processing method of thermal power station's Industrial Boiler off-gas recovery processing unit includes following step It is rapid:
S1: flue gas caused by thermal power station's boiler is directed into denitration chamber by smoke-intake pipe, while driving water pump by water Cold water in case is directed into water cooling tube, after flue gas after the denitration process of denitration chamber, opens the air valve in the first smoke guide pipe；
S2；Flue gas after denitration chamber denitration process enters in desulfurization chamber along the first smoke guide pipe, opens at this time Switch on one motor simultaneously drives first motor that its is made to drive first rotating shaft rotation, band after first rotating shaft rotation by external power supply Dynamic desulfurization plate rotation and and smoke contacts, to carry out desulfurization process to flue gas using desulfurization plate；
S3: the flue gas by desulfurization process enters CO along the second smoke guide pipe2Process chamber passes through CO to flue gas2Process chamber Processing after, open third smoke guide pipe on air valve；
S4: pass through CO2Treated that flue gas enters in the second dirt pocket along third smoke guide pipe for process chamber, opens at this time Switch on second motor simultaneously drives the second motor that its is made to drive the rotation of second shaft by external power supply, after the rotation of the second shaft Flabellum rotation is driven to accelerate the indoor flow of flue gas of the first dedusting, and utilizes powder contained in aluminium column and copper wire absorption flue gas The solid granulates such as dirt:
S5: the flue gas after the first dirt pocket preliminary dust removal enters in the second dirt pocket along the 4th smoke guide pipe, benefit It can make further dust removal process to flue gas with by-pass filtration plate, secondary filtration plate and three-stage filtration plate；
S6: the flue gas after the second dirt pocket final dusting enters smoke exhaust pipe, can remove in flue gas by adsorbing sphere Moisture, later open smoke exhaust pipe nozzle air valve, thus finally by the flue gas emission after the completion of processing into atmosphere.
Compared with prior art, the present invention have following several the utility model has the advantages that
1, apparatus of the present invention NO according to contained in the flue gas that thermal power station's boiler is dischargedx、SOx、CO2, dust solid granulates The various harmful components such as impurity, devise corresponding processing structure, therefore with strong points, processing it is high-efficient, effect is good.
2, cooling processing is carried out to flue gas by water cooling tube, the concentration of harmful ingredients in flue gas can be reduced, to improve place The efficiency of reason, and the circulating chilled water in water cooling tube can be made to flow using water pump, prevent cold water temperature from increasing, to save water Resource reduces costs.
3, using the granular activated carbon on desulfurization plate to the desulfurization degree of flue gas up to 95% or more, processing capacity is reachable 104Nm3/h.t。
4,5 μm or more of dust particles be can remove by the first dirt pocket, efficiency of dust collection is 50%~90%, and second removes Dirt room reaches 99.7% for 0.1 micron and 0.3 micron (the 1/200 of hair diameter) of contaminant particles removal effective percentage.
Detailed description of the invention
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is enlarged drawing at the A of Fig. 1；
Fig. 3 is enlarged drawing at the B of Fig. 1.
Figure label: 1 shell, 2 denitration chambers, 3 desulfurization chambers, 4 CO2Process chamber, 5 first dirt pockets, 6 second dirt pockets, 7 Smoke-intake pipe, 8 water tanks, 9 water supply pipes, 10 water pumps, 11 water cooling tubes, 12 partitions, 13 stomatas, 14 first smoke guide pipes, 15 first motors, 16 First rotating shaft, 17 mounting blocks, 18 desulfurization plates, 19 second smoke guide pipes, 20 third smoke guide pipes, 21 second motors, 22 second shafts, 23 Flabellum, 24 mounting plates, 25 aluminium columns, 26 copper wires, 27 the 4th smoke guide pipes, 28 by-pass filtration plates, 29 secondary filtration plates, 30 three-stage filtrations Plate, 31 smoke exhaust pipes, 32 air valves, 33 absorption storehouses, 34 adsorbing spheres.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of thermal power station's Industrial Boiler off-gas recovery processing unit And processing method, including shell 1, the inner cavity of shell 1 be respectively arranged with denitration chamber 2, desulfurization chamber 3, CO2Process chamber 4, the first dedusting Room 5 and the second dirt pocket 6, denitration chamber 2, desulfurization chamber 3, CO2Process chamber 4, the first dirt pocket 5 and the second dirt pocket 6 are from left to right Successively arranged adjacent, the side side wall of shell 1 offer smoke-intake pipe 7, and the other end of smoke-intake pipe 7 runs through the side wall of shell 1 and consolidates Surely it is connected to the side wall of denitration chamber 2, the top of shell 1 is equipped with water tank 8, and the top of water tank 8 is fixedly connected with water supply pipe 9, and The side wall of water tank 8 is equipped with water pump 10, water cooling tube 11 is fixedly connected on water pump 10, water cooling tube 11 is outside the top of shell 1 Wall is simultaneously wrapped on the tube wall of smoke-intake pipe 7, and the end of water cooling tube 11 is fixedly connected on the side wall of water tank 8, passes through water cooling tube 11 The temperature that flue gas can be reduced condenses the vapor in flue gas, so that the content of pernicious gas in flue gas is reduced using condensed water, NH is filled in denitration chamber 24OH solution, can be with the NO in flue gasxChemical reaction occurs to play the denitration to flue gas, and The inner cavity of denitration chamber 2 is fixedly connected with partition 12, several stomatas 13 are offered on partition 12, and the top of denitration chamber 2 is fixed to be connected It is connected to the first smoke guide pipe 14, the other end of the first smoke guide pipe 14 is fixedly connected on the side wall of desulfurization chamber 3, the inner cavity top of desulfurization chamber 3 Portion is equipped with first motor 15, and switch and external power supply are equipped in first motor 15, and the output end of first motor 15 is fixed to be connected It is connected to first rotating shaft 16, the axle body two sides of first rotating shaft 16 are fixedly connected with several pieces of mounting blocks 17, and every piece of mounting blocks 17 are logical It crosses bolt and is fixedly connected with desulfurization plate 18, the two sides plate face of desulfurization plate 18 is stained with granular activated carbon, can absorb in flue gas SOx, to play the desulfidation to flue gas, desulfurization plate 18 is rectangular slab, and is equally distributed in first rotating shaft 16, can be expanded The desulfurization scope of big desulfurization plate 18 improves the efficiency of desulfurization, fixed company on side wall of the desulfurization chamber 3 far from 14 side of the first smoke guide pipe It is connected to the second smoke guide pipe 19, the other end of the second smoke guide pipe 19 runs through CO2The top exterior walls of process chamber 4 simultaneously extend to CO2Process chamber 4 inner cavity, CO2Alcohol ammonia solution is filled in process chamber 4, it can be with the CO in flue gas2Occur to chemically react and absorbed, and CO2Place The top of reason room 4 is also fixedly connected with third smoke guide pipe 20, and the other side of third smoke guide pipe 20 is fixedly connected on the first dirt pocket 5 Side wall, the inner cavity top of the first dirt pocket 5 is equipped with the second motor 21, and switch and external electricity are equipped on the second motor 21 Source, the output end of the second motor 21 are fixedly connected with the second shaft 22, and the two sides axle body of the second shaft 22 is fixedly connected with several Piece flabellum 23, can accelerate the air flowing in the first dirt pocket 5 when flabellum 23 rotates, and the inner cavity two sides of the first dirt pocket 5 are solid Surely several pieces of mounting plates 24 are connected with, mounting plate 24 is powered to it by external power supply, between every adjacent two pieces of mounting plates 24 It is fixedly connected with aluminium column 25, copper wire 26 is wound on aluminium column 25, mounting plate 24 makes aluminium column 25 with positive electricity, copper wire 26 after being powered With negative electricity, it is fixedly connected with the 4th smoke guide pipe 27 on the first side wall of the dirt pocket 5 far from 20 side of third smoke guide pipe, the 4th leads Smoke pipe 27 runs through the side wall of the second dirt pocket 6 and extends in the second dirt pocket 6, and the inner cavity of the second dirt pocket 6 is respectively arranged with By-pass filtration plate 28, secondary filtration plate 29 and three-stage filtration plate 30, by-pass filtration plate 28, secondary filtration plate 29 and three-stage filtration plate 30 top and bottom are respectively fixedly connected with inner cavity top and bottom in the second dirt pocket 6, by-pass filtration plate 28, secondary filtration HEPA high efficiency particulate air is mounted on plate 29 and three-stage filtration plate 30, mesh number is sequentially increased, so as to improve step by step pair The adsorption effect of the solid granulates such as dust thoroughly removes the impurity particles such as the dust in flue gas, and shell 1 is far from 7 side of smoke-intake pipe Side wall on be fixedly connected with smoke exhaust pipe 31, several absorption storehouses 33 are provided in smoke exhaust pipe 31, absorption storehouse 33 is spherical storehouse knot Structure, and adsorbing sphere 34 is filled in each absorption storehouse 33, adsorbing sphere 34 is sponge spherical structure, and outer diameter is equal to absorption storehouse 33 Internal diameter can absorb the moisture in flue gas, the nozzle of smoke exhaust pipe 31, the first smoke guide pipe 14 and third smoke guide pipe 20 by adsorbing sphere 34 It is mounted on air valve 32.
A kind of processing method of thermal power station's Industrial Boiler off-gas recovery processing unit, comprising the following steps:
Flue gas generated in thermal power station's power generation process is directed into recovery processing dress by smoke-intake pipe 7 by contrived experiment In setting, the harmful components in flue gas include NOx、SOx、CO2, the solid granulates impurity such as dust, when flue gas enters in denitration chamber 2 When, it can be with the NH in denitration chamber 24OH solution chemically reacts, chemical equation are as follows: NH4OH→NH3+H2O, 4NH3+4NO+ O2→4N2+6H2O,8NH3+6NO2→7N2+12H2O, thus by harmful NOxConversion is harmless N2And H2O works as flue gas When entering in desulfurization chamber 3, by driving first motor 15 to make first rotating shaft 16 that desulfurization plate 18 be driven to rotate, the two of desulfurization plate 18 Lateral plates are stained with granular activated carbon, the SO caning absorb in flue gasx, when flue gas enters CO2When in process chamber 4, in flue gas CO2It can be only absorbed by the water, chemical equation are as follows: CO2+H2O=H2CO3, when flue gas enters in the first dirt pocket 5, pass through drive Dynamic second motor 21 makes the second shaft 22 that flabellum 23 be driven to rotate, to accelerate the air flowing in the first dirt pocket 5, and makes cigarette Gas is contacted with copper wire 26 and aluminium column 25, and copper wire 26 has negative electricity, can also be had when the dust particles of flue gas are contacted with copper wire 26 Negative electricity, and aluminium column 25 then has positive electricity, therefore the dust particles with negative electricity can be adsorbed on the aluminium column 25 with positive electricity, thus The part dust particles in flue gas can be removed, when flue gas enters in the second dirt pocket 6, by-pass filtration plate can be sequentially passed through 28, secondary filtration plate 29 and three-stage filtration plate 30 are respectively mounted on by-pass filtration plate 28, secondary filtration plate 29 and three-stage filtration plate 30 There is HEPA high efficiency particulate air, mesh number is sequentially increased, so as to improve the adsorption effect to solid granulates such as dust step by step, after And the impurity particles such as the dust in flue gas are thoroughly removed, when flue gas enters in smoke exhaust pipe 31, smoke exhaust pipe 31 is adsorbed in storehouse 33 Adsorbing sphere 34 can absorb the moisture in flue gas, so that flue gas is become drying, to be finally completed the recovery processing to flue gas.
Compared with prior art, the present invention have following several the utility model has the advantages that
1, apparatus of the present invention NO according to contained in the flue gas that thermal power station's boiler is dischargedx、SOx、CO2, dust solid granulates The various harmful components such as impurity, devise corresponding processing structure, therefore with strong points, processing it is high-efficient, effect is good.
2, cooling processing is carried out to flue gas by water cooling tube 11, can effectively reduce the concentration of harmful ingredients in flue gas, to mention The high efficiency of processing, and the circulating chilled water in water cooling tube 11 can be made to flow using water pump 10, prevent cold water temperature from increasing, from And water resource has been saved, it reduces costs.
3, using the granular activated carbon on desulfurization plate 18 to the desulfurization degree of flue gas up to 95% or more, processing capacity is reachable 104Nm3/h.t。
4,5 μm or more of dust particles be can remove by the first dirt pocket 5, efficiency of dust collection is 50%~90%, and second Dirt pocket 6 reaches 99.7% for 0.1 μm and 0.3 μm (the 1/200 of hair diameter) of contaminant particles removal effective percentage.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (6)

1. a kind of thermal power station's Industrial Boiler off-gas recovery processing unit, including shell (1), it is characterised in that: the shell (1) Inner cavity is respectively arranged with denitration chamber (2), desulfurization chamber (3), CO2Process chamber (4), the first dirt pocket (5) and the second dirt pocket (6), The denitration chamber (2), desulfurization chamber (3), CO2Process chamber (4), the first dirt pocket (5) and the second dirt pocket (6) are from left to right successively The side side wall of arranged adjacent, the shell (1) offers smoke-intake pipe (7), and the other end of the smoke-intake pipe (7) runs through shell (1) side wall and the side wall for being fixedly connected on denitration chamber (2) are equipped with water tank (8), the water tank at the top of the shell (1) (8) it is fixedly connected at the top of water supply pipe (9), and the side wall of the water tank (8) is equipped with water pump (10), on the water pump (10) It is fixedly connected with water cooling tube (11), the water cooling tube (11) runs through the top exterior walls of shell (1) and is wrapped in the pipe of smoke-intake pipe (7) On wall, and the end of the water cooling tube (11) is fixedly connected on the side wall of water tank (8), fills NH in the denitration chamber (2)4OH is molten Liquid, and the inner cavity of the denitration chamber (2) is fixedly connected with partition (12), offers several stomatas on the partition (12) (13), it is fixedly connected with the first smoke guide pipe (14) at the top of the denitration chamber (2), the other end of first smoke guide pipe (14) is solid Surely it is connected to the side wall of desulfurization chamber (3), the inner cavity top of the desulfurization chamber (3) is equipped with first motor (15), first electricity The output end of machine (15) is fixedly connected with first rotating shaft (16), and the axle body two sides of the first rotating shaft (16) are fixedly connected with several Block mounting blocks (17), every piece of mounting blocks (17) have been bolted to connection desulfurization plate (18), and the desulfurization chamber (3) is remote Be fixedly connected on side wall from the first smoke guide pipe (14) side the second smoke guide pipe (19), second smoke guide pipe (19) it is another CO is run through at end2The top exterior walls of process chamber (4) simultaneously extend to CO2The inner cavity of process chamber (4), the CO2It is filled in process chamber (4) Alcohol ammonia solution, and the CO2The top of process chamber (4) is also fixedly connected with third smoke guide pipe (20), third smoke guide pipe (20) The other side is fixedly connected on the side wall of the first dirt pocket (5), and the inner cavity top of first dirt pocket (5) is equipped with the second motor (21), the output end of second motor (21) is fixedly connected with the second shaft (22), two side axles of second shaft (22) If body is fixedly connected with dry plate flabellum (23), the inner cavity two sides of first dirt pocket (5) are fixedly connected with several pieces of mounting plates (24), it is fixedly connected to aluminium column (25) between every adjacent two pieces mounting plates (24), is wound with copper on the aluminium column (25) Silk (26), first dirt pocket (5) far from third smoke guide pipe (20) side side wall on be fixedly connected with the 4th smoke guide pipe (27), the 4th smoke guide pipe (27) through the second dirt pocket (6) side wall and extend in the second dirt pocket (6), described the The inner cavity of two dirt pockets (6) is respectively arranged with by-pass filtration plate (28), secondary filtration plate (29) and three-stage filtration plate (30), described It is respectively fixedly connected at the top and bottom of by-pass filtration plate (28), secondary filtration plate (29) and three-stage filtration plate (30) and is removed second The inner cavity top of dirt room (6) and bottom, the shell (1) far from smoke-intake pipe (7) side side wall on be fixedly connected with smoke exhaust pipe (31), the nozzle of the smoke exhaust pipe (31), the first smoke guide pipe (14) and third smoke guide pipe (20) is mounted on air valve (32).
2. a kind of thermal power station's Industrial Boiler off-gas recovery processing unit according to claim 1, it is characterised in that: described de- The two sides plate face of sulphur plate (18) is stained with granular activated carbon, and the desulfurization plate (18) is rectangular slab, and is equally distributed on the In one shaft (16).
3. a kind of thermal power station's Industrial Boiler off-gas recovery processing unit according to claim 1, it is characterised in that: described one HEPA high efficiency particulate air, mesh number are mounted on grade filter plate (28), secondary filtration plate (29) and three-stage filtration plate (30) It is sequentially increased.
4. a kind of thermal power station's Industrial Boiler off-gas recovery processing unit according to claim 1, it is characterised in that: the row It is provided with several absorption storehouse (33) in smoke pipe (31), the absorption storehouse (33) is spherical shape chamber structure, and each absorption storehouse (33) adsorbing sphere (34) are filled in.
5. a kind of thermal power station's Industrial Boiler off-gas recovery processing unit according to claim 4, it is characterised in that: the suction Attached ball (34) is sponge spherical structure, and outer diameter is equal to the internal diameter of absorption storehouse (33).
6. a kind of processing method of thermal power station's Industrial Boiler off-gas recovery processing unit according to claim 1, feature It is, comprising the following steps:
S1: flue gas caused by thermal power station's boiler is directed into denitration chamber (2) by smoke-intake pipe (7), while driving water pump (10) cold water in water tank (8) is directed into water cooling tube (11), after flue gas after the denitration process of denitration chamber (2), is opened Air valve (32) in first smoke guide pipe (14)；
S2；Flue gas after denitration chamber (2) denitration process enters in desulfurization chamber (3) along the first smoke guide pipe (14), at this time It opens the switch on first motor (15) and makes it that first rotating shaft (16) be driven to turn by external power supply driving first motor (15) It is dynamic, drive desulfurization plate (18) rotation simultaneously after first rotating shaft (16) rotation and smoke contacts, thus using desulfurization plate (18) to flue gas Carry out desulfurization process；
S3: the flue gas by desulfurization process enters CO along the second smoke guide pipe (19)2Process chamber (4) passes through CO to flue gas2Place After the processing for managing room (4), the air valve (32) on third smoke guide pipe (20) is opened；
S4: pass through CO2Process chamber (4) treated flue gas enters in the second dirt pocket (6) along third smoke guide pipe (20), this When open switch on the second motor (21) and so that its is driven the second shaft (22) by external power supply driving the second motor (21) Rotation drives flabellum (23) rotation to accelerate the flow of flue gas in the first dirt pocket (5), and benefit after the second shaft (22) rotation The solid granulates such as the dust contained in aluminium column (25) and copper wire (26) absorption flue gas；
S5: the flue gas after the first dirt pocket (5) preliminary dust removal enters the second dirt pocket (6) along the 4th smoke guide pipe (27) In, flue gas can be made at further dedusting using by-pass filtration plate (28), secondary filtration plate (29) and three-stage filtration plate (30) Reason；
S6: the flue gas after the second dirt pocket (6) final dusting enters smoke exhaust pipe (31), can remove by adsorbing sphere (34) Moisture in flue gas opens the air valve (32) of smoke exhaust pipe (31) nozzle, thus finally by the flue gas emission after the completion of processing later Into atmosphere.
CN201810838710.XA 2018-07-27 2018-07-27 A kind of thermal power station's Industrial Boiler off-gas recovery processing unit and processing method Withdrawn CN108970358A (en)

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