CN106512605A - Waste incineration flue gas purification system - Google Patents

Waste incineration flue gas purification system Download PDF

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Publication number
CN106512605A
CN106512605A CN201611187484.0A CN201611187484A CN106512605A CN 106512605 A CN106512605 A CN 106512605A CN 201611187484 A CN201611187484 A CN 201611187484A CN 106512605 A CN106512605 A CN 106512605A
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China
Prior art keywords
area
water curtain
water
flue gas
flue
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CN201611187484.0A
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Inventor
高博
曾毅夫
叶明强
周益辉
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Kaitian Environmental Technology Co Ltd
Aerospace Kaitian Environmental Technology Co Ltd
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Aerospace Kaitian Environmental Technology Co Ltd
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Priority to CN201611187484.0A priority Critical patent/CN106512605A/en
Publication of CN106512605A publication Critical patent/CN106512605A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
    • B01D47/022—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath by using a liquid curtain
    • 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
    • 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
    • B01D53/1456—Removing acid components
    • B01D53/1481—Removing sulfur dioxide or sulfur trioxide
    • 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
    • B01D53/26—Drying gases or vapours
    • 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
    • B01D53/48—Sulfur compounds
    • 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
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/75—Multi-step processes
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/77—Liquid phase processes
    • B01D53/79—Injecting reactants
    • 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/84—Biological processes
    • B01D53/85—Biological processes with gas-solid contact
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/30—Alkali metal compounds
    • B01D2251/304—Alkali metal compounds of sodium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/40—Alkaline earth metal or magnesium compounds
    • B01D2251/404—Alkaline earth metal or magnesium compounds of calcium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/60—Inorganic bases or salts
    • B01D2251/604—Hydroxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/95—Specific microorganisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • 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
    • B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
    • B01D2253/10—Inorganic adsorbents
    • B01D2253/116—Molecular sieves other than zeolites
    • 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
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/704—Solvents not covered by groups B01D2257/702 - B01D2257/7027
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/90—Odorous compounds not provided for in groups B01D2257/00 - B01D2257/708
    • 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
    • B01D2258/0291—Flue gases from waste incineration plants
    • 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

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

Abstract

The invention discloses a waste incineration flue gas purification system. The system comprises a desulfuration, dedusting and deodorizing device, a defogging device, an adsorption device and a biofilter which are sequentially connected on a flue of a waste incinerator in series, wherein an induced draft fan is arranged on the flue; the desulfuration, dedusting and deodorizing device comprises a device box which is divided into a water curtain area and a deodorizing area inside; a flue gas inlet connected with the flue at an inlet is arranged at the part, where the water curtain area is located, of the device box, water curtain plates connected with a water supply system are arranged in the water curtain area, and a water curtain formed by the water curtain plates is located on a channel between the water curtain area and the deodorizing area; a flue gas outlet connected with the flue at an outlet is arranged at the part, where the deodorizing area is located, of the device box, and a spray nozzle connected with a deodorant conveying system is arranged in the deodorizing area. The system is compact in structure and low in cost and has a good promoting function on household waste incineration treatment in rural areas, especially in rural areas with poor conditions.

Description

A kind of waste incinerated smoke purification system
Technical field
The invention belongs to flue gas of refuse burning treatment technology, and in particular to a kind of waste incinerated smoke purification system.
Background technology
With the improvement of people's living standards, in remote rural area, house refuse problem also has become and solves Environmental protection problem, current residents in rural community mostly direct open incineration, without any subsequent treatment, house refuse is being entered Substantial amounts of sulfide and flue dust can be produced during row burning disposal, and produces substantial amounts of foul smell, cause flue gas of refuse burning Surrounding enviroment are severely impacted, serious atmospheric pollution is caused, the rubbish after burning in addition, what produced flue gas was carried Foul smell, can affect the region in 1 kilometer range of periphery, especially two English, SO2Harm it is bigger, can directly jeopardize people The physical and mental health of the people, causes rural environment Quality Down.
Existing flue gas of refuse burning abatement equipment complex treatment process, the equipment of this type generally include multistage desulfurization Equipment, cleaner, deodorizing device etc., equipment volume is huge, and the area for needing occupancy larger is installed, it is adaptable in cities and towns House refuse is carried out into the pattern of centralized collection improvement, in rural area, due to the restriction in geographical position, large-scale system is set Fume treatment auxiliary is more difficult, constrains the improvement of incineration flue gas of household garbage.
The content of the invention
Present invention solves the technical problem that being：Lacking for comprehensive smoke gas treatment equipment is difficult in adapt to for existing rural area Fall into, there is provided a kind of new waste incinerated smoke purification system, the collection of various flue gas managing techniques is realized using integrated apparatus Into effectively reducing the overall volume of equipment, be conducive to garbage-incineration smoke purifying to promote in rural area.
The present invention adopts the following technical scheme that realization：
A kind of waste incinerated smoke purification system, including the desulfurization and dedusting deodorization being sequentially connected in series on incinerator flue Device, demister, adsorbent equipment and biofiltration tower；
The flue is provided with air-introduced machine；
The desulfurization and dedusting odor removal includes device box, is divided into cascade area and deodorization area in described device casing；Institute State and the gas approach being connected with inlet flue duct is set on the device box at cascade area place, be provided with and water supply inside the cascade area The water curtain plate of system connection, the cascade that the water curtain plate is formed are located on the passage between cascade area and deodorization area；The deodorization The exhanst gas outlet being connected with exhaust pass is set on the device box that area is located, is provided with inside the deodorization area and is conveyed with deodorizer The nozzle of system connection.
The demister adopts demister, and the flue gas after desulfurization and dedusting deodorization is dehumidified；
Adsorbent is provided with the adsorbent equipment, adsorption cleaning is carried out to the flue gas after dehumidifying；
The biofiltration tower adopts biological cleaning module, carries out biological cleaning to flue gas and discharges.
Further, the water curtain plate is at least two-stage, and is distributed in ladder, and the one-level water curtain plate of the superiors is arranged on dress Put below the water inlet of casing.
Further, catch basin is provided between the one-level water curtain plate and water inlet of the superiors.
Further, the low side of the water curtain plate is provided with the riser of downward bending, and the water curtain plate of upper level passes through the riser Dock with the water curtain plate of next stage.
Further, the water system includes the feed pipe being connected with water inlet and alkali liquor pond, and the feed pipe passes through Water pump is connected to alkali liquor pond.
Further, the bottom of described device casing is connected to cesspool, the cesspool and sedimentation tank by blow-off pipe Overflow is connected, and the supernatant of the sedimentation tank is connected with alkali liquor pond.
Further, the deodorizer induction system includes deodorizer pond, deodorizer delivery pipe, and the deodorizer pond passes through Deodorizer delivery pipe is connected with the deodorizer arm on nozzle.
Further, the demister and adsorbent equipment bottom are in parallel with cesspool by blow-off pipe.
Further, the adsorbent is activated carbon or molecular sieve.
The present invention has the advantages that：
1st, desulfurization and dedusting odor removal of the invention is integrated in desulfurization, dedusting and deodorizing process in one casing and realizes, The multipurpose of desulfurization, deodorization, dedusting, chilling can be played, by stepped cascade desulfurization and dedusting, desulfurizer can be reduced Height, reduce using dedusting, the volume of deodorizing device, reach the floor space for reducing smoke gas treatment equipment.
2nd, the desulfurization and dedusting odor removal in the present invention not only filters the dust and sulfide in flue gas, because of water consumption at this Greatly, contact of the flue gas with cold water fully, therefore can play the purpose of flue gas chilling, it is to avoid in flue gas of refuse burning, two English are again Secondary synthesis.
3rd, present configuration is compact, the cost of the aspect such as the investment of saving equipment, production and processing, equipment installation.Especially exist The economic rural area compared with under-developed area, the house refuse centralized burning process to rural area have good promotion to make With.
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Description of the drawings
Structural representations of the Fig. 1 for the garbage-incineration smoke purifying device in embodiment.
Fig. 2 is the desulfurization and dedusting deodorization internal structure schematic diagram in embodiment.
Connection diagrams of the Fig. 3 for cesspool, sedimentation tank and alkali liquor pond in embodiment.
Label in figure：1- incinerators, 2- desulfurization and dedusting odor removals, 3- demisters, 4- adsorbent equipments, 5- sewage Pond, 6- sedimentation tanks, 7- alkali liquor pond, 8- flues, 9- feed pipes, 10- air-introduced machines, 11- water pumps, 12 biofiltration towers, 13- blow-off pipes Interface, the first flow-guiding mouths of 14-, 15- nozzles, 16- deodorizer pond, 17- water inlets, 18- water curtain plates, 19- blow-off pipes, 20- deodorization Agent arm, 21- deodorizer delivery pipes, 22- cascades area, 23- deodorization area, 24- gas approach, 25- exhanst gas outlets, 26- catch basins, 27- risers, the second flow-guiding mouths of 28-, 29- water supply interface tubes.
Specific embodiment
Embodiment
Referring to Fig. 1, it is illustrated that in a kind of garbage-incineration smoke purifying device be the preferred embodiments of the invention, it is concrete to wrap Include be connected in series by flue 8 incinerator 1, desulfurization and dedusting odor removal 2, demister 3, adsorbent equipment 4, air-introduced machine 10, the liquid treatment cycle system of biofiltration tower 12 and bottom.
Specifically, the flue gas that waste incineration is produced is entered by the exhaust opening of incinerator 1 in flue 8, along flue 8 first Into in the casing of desulfurization and dedusting odor removal 2.
With reference to referring to Fig. 2, being divided into cascade area 22 and deodorization area 23 in the device box of desulfurization and dedusting odor removal 2, two The cascade formed by cascade area 22 between region is separated, and the device box that cascade area 22 is located is provided with the flue 8 with import The water inlet 17 of the gas approach 24 of docking and connection water system, the device box that deodorization area 23 is located are provided with and outlet Flue 8 docking exhanst gas outlet 25, flue gas of refuse burning from gas approach 24 enter device box 2 in, pass sequentially through cascade Behind area and deodorization area, discharge from exhanst gas outlet 25.
In cascade area 22, the formation of cascade is realized by water curtain plate 18.Multi-level water curtain plate 18 is distributed in ladder, and often Level 18 upper surface of water curtain plate is inclined-plane, current on upper level water curtain plate 18 cross flow on next stage water curtain plate 18, in two-stage Cascade is formed between water curtain plate
The one-level water curtain plate 18 of the superiors it is high-end below water inlet 17, and in this grade of water curtain plate and water inlet 17 Between be additionally provided with catch basin 26, catch basin 26 is arranged along the width of water curtain plate, and the water from the input of water inlet 17 is first in catch basin 26 The inclined-plane of water curtain plate is crossed in middle accumulation, then the width cross flow along water curtain plate 18, it is ensured that water curtain plate 18 is formed in the direction of the width Even cascade.Cascade is deviate to the dust passed through in flue gas and the material for being dissolved in water, while cascade adopts Ca (OH)2Or The alkali liquor such as NaOH can be reacted with the sulfide in flue gas as water source, form sulfate liquor, realize the sulfuration in flue gas Thing is removed.
The low side downward bending of water curtain plate 18 forms riser 27, and the water curtain plate of upper level is by riser 27 and next stage cascade Plate is docked, and cascade can be vertically directed next stage water curtain plate along riser 27, form effective cascade between two-stage water curtain plate.
Water inlet 17 on device box is docked with the feed pipe 9 of water system, and feed pipe 9 is connected with alkali liquor pond 7, is being supplied Water pipe 9 is provided with water pump 11, the alkali liquor in alkali liquor pond 7 is delivered on water curtain plate and forms cascade.
The device box inwall that deodorization area 23 is located arranges some nozzles 15, and nozzle 15 is arranged towards flue gas circulating direction, if Dry nozzle 15 is connected to deodorizer arm 20, and deodorizer arm 20 collects and is connected to deodorizer delivery pipe 21, and deodorizer is defeated Send pipe 21 to be connected with deodorizer pond 16, deodorizer is delivered to by 15 atomizing spray of nozzle by delivery pump, to the foul smell in flue gas Administered.
Through the flue gas of desulfurization and dedusting odor removal 2, the purpose of high-efficiency desulfurization, dedusting, deodorization is can reach, and to rubbish The high temperature of burning carries out chilling, the smog discharge temperature from after the process of desulfurization and dedusting odor removal 2 at 70-120 DEG C, cigarette now Containing a large amount of steam taken out of from cascade and deodorizer in gas, further, flue gas enters demister 3, removes flue gas Moisture.
Demister 3 adopts board-like demister, demisting efficiency more than 90%.
Waste gas after demister 3 dehumidifies enters adsorbent equipment 4, will by the adsorbent such as activated carbon or macromolecule sieve The noxious substances such as two English in flue gas carry out adsorbing and removing.
The exhaust pass of demister 3 is provided with air-introduced machine 10, forms negative pressure, rubbish is burnt in the flue of whole system Flue gas in burning stove is continuously supplied to each module and is administered.The flue gas produced in view of waste incineration is higher, by air-introduced machine 10 are arranged on the position that flue is held rearward, it is to avoid high temperature is impacted to the normal work of air-introduced machine.
Air-introduced machine 10 is directly connected with the import of biofiltration tower 12, and biofiltration tower 12 is the narrow tubular knot in a bottom width top Structure, if being provided with dried layer biological cleaning module in the inner passage of biofiltration tower 12, in the biologic packing material of biological cleaning module The microorganism Jing after domestication is cultivated, nitrogen oxides and foul smell in flue gas can be further decomposed in microorganism therein, after purification Flue gas directly arrange to air from the top of cylinder.
Liquid treatment cycle system in the present embodiment includes cesspool 5, sedimentation tank 6 and alkali liquor pond 7, wherein cesspool 5 For collecting the sewage during gas cleaning, sedimentation tank 6 carries out precipitation process for the sewage to collecting, and alkali liquor pond 7 is used for The water source of cascade is formed during desulfurization and dedusting odor removal 2 is provided.Pass through flow-guiding mouth between cesspool 5, sedimentation tank 6 and alkali liquor pond 7 Serial communication is carried out, recycling for sewage is realized.
Specifically, desulfurization and dedusting odor removal 2, demister 3, adsorbent equipment 4 box bottom by blow-off pipe 19 with The blowdown interface tube 13 of cesspool 5 connects, and will collect cesspool to the sewage unification after flue gas ash removal, desulfurization, deodorization, demisting In 5, as shown in figure 3, cesspool 5 is connected with 6 overflow of sedimentation tank by the first flow-guiding mouth 14, in sedimentation tank 6, addition flocculant, right The waste water removed in sedimentation tank 6 is precipitated, and the upper clear supernate of sedimentation tank 6 is connected with alkali liquor pond 7 by the second flow-guiding mouth 28, right Clear liquid after precipitation is recycled, and the supernatant position in alkali liquor pond 7 is provided with water supply interface tube 29, for water system Feed pipe 9 connect.
The present embodiment can realize the overall improvement of flue gas of refuse burning, and wherein desulfurization and dedusting odor removal 2 is in flue gas Sulfur-bearing material and dust can be efficiently removed, the flue-gas temperature for emitting avoids two at 70-120 DEG C, effectively The temperature range of the secondary formation of English, demister 3 remove the moisture in flue gas, adsorbent equipment to flue gas in two English etc. have Evil material is adsorbed, and biofiltration tower 12 is discharged after removing to the sulfur-bearing in flue gas, nitrogen-containing oxide.
The specific course of work is as follows：The flue gas that waste incineration is produced enters desulfurization and dedusting odor removal by incinerator Cascade area 22 in 2, washes to flue gas, removes sulfide and dust in flue gas, while the temperature of flue gas is reduced, favorably In techniques such as follow-up demisting, absorption and biological desorptions, the flue gas after washing enters deodorization area 23 through cascade, is sprayed by nozzle Deodorizer is penetrated, deodorization is carried out to flue gas, the flue gas after deodorization sequentially enters demister 3, absorption dress from after exhanst gas outlet discharge Putting 4 carries out demisting and adsorption cleaning, and eventually passes through biofiltration tower 12 and discharge.22 He of cascade area of desulfurization and dedusting odor removal Sewage produced by deodorization area 23 and demister 3 and adsorbent equipment 4 is directly emitted in cesspool 5 by blow-off pipe 19, After preliminary sedimentation, the first flow-guiding mouth of upper strata clear water Jing 14 flows into sedimentation tank 6 to sewage, puts into flocculant in sedimentation tank 6, wads a quilt with cotton Water after retrogradation is formed sediment flows into alkali liquor pond 7, puts into Ca (OH) 2, take upper strata clear water and be pumped to cascade by water system in the pond Area forms cascade, realizes recycling for water resource.
It is below the working effect in actual applications of the present embodiment.
Day output 15t, rubbish are sent in incinerator by transporter after simply sorting, intermittent feeding.The whole series set 110 square meter of standby floor space, 900 DEG C of observed temperature in stove, after the present embodiment carries out desulfurization, dedusting and deodorization, discharge SO2, two English, particulate matter toxic gas are not detected in 85 DEG C of flue-gas temperature, factory circle 1m.
Day output 30t, rubbish simply sort after by transporter feeding incinerator, entering rubbish 3 times daily.It is whole 130 square meter of complete equipment floor space, 950 DEG C of observed temperature in stove, after the present embodiment carries out desulfurization, dedusting and deodorization, row SO2, two English, particulate matter toxic gas are not detected in 92 DEG C of the flue-gas temperature put, factory circle 1m.
Above example is the description of the invention, not limitation of the invention, and the technical staff of the industry should Solution, the present invention are not restricted to the described embodiments, and the simply explanation present invention's described in above-described embodiment and description is concrete Operation principle, without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications, these changes Both fall within scope of the claimed invention with improvement, the claimed scope of the invention is by appending claims and its waits Effect thing is defined.

Claims (9)

1. a kind of waste incinerated smoke purification system, it is characterised in that de- on incinerator flue including being sequentially connected in series Sulfur dedusting odor removal, demister, adsorbent equipment and biofiltration tower；
The flue is provided with air-introduced machine；
The desulfurization and dedusting odor removal includes device box, is divided into cascade area and deodorization area in described device casing；The water The gas approach being connected with inlet flue duct is set on the device box that curtain area is located, is provided with and water system inside the cascade area The water curtain plate of connection, the cascade that the water curtain plate is formed are located on the passage between cascade area and deodorization area；The institute of deodorization area Device box on the exhanst gas outlet that is connected with exhaust pass is set, be provided with inside the deodorization area and deodorizer induction system The nozzle of connection.
The demister adopts demister, and the flue gas after desulfurization and dedusting deodorization is dehumidified；
Adsorbent is provided with the adsorbent equipment, adsorption cleaning is carried out to the flue gas after dehumidifying；
The biofiltration tower adopts biological cleaning module, carries out biological cleaning to flue gas and discharges.
2. a kind of waste incinerated smoke purification system according to claim 1, the water curtain plate are at least two-stage, and are in rank Ladder distribution, the one-level water curtain plate of the superiors are arranged on below the water inlet of device box.
3. a kind of waste incinerated smoke purification system according to claim 2, the one-level water curtain plate of the superiors with enter Catch basin is provided between the mouth of a river.
4. a kind of waste incinerated smoke purification system according to claim 3, the low side of the water curtain plate are provided with folding downwards Curved riser, the water curtain plate of upper level are docked with the water curtain plate of next stage by the riser.
5. a kind of waste incinerated smoke purification system according to any one of claim 1-4, the water system include The feed pipe being connected with water inlet and alkali liquor pond, the feed pipe are connected to alkali liquor pond by water pump.
6. a kind of waste incinerated smoke purification system according to claim 5, the bottom of described device casing pass through blowdown Pipe is connected to cesspool, and the cesspool is connected with sedimentation tank overflow, and the supernatant of the sedimentation tank is connected with alkali liquor pond.
7. a kind of waste incinerated smoke purification system according to claim 1, the deodorizer induction system include deodorization Agent pond, deodorizer delivery pipe, the deodorizer pond are connected with the deodorizer arm on nozzle by deodorizer delivery pipe.
8. a kind of waste incinerated smoke purification system according to claim 6, the demister and adsorbent equipment bottom It is in parallel with cesspool by blow-off pipe.
9. a kind of waste incinerated smoke purification system according to claim 1, the adsorbent are activated carbon or molecular sieve.
CN201611187484.0A 2016-12-20 2016-12-20 Waste incineration flue gas purification system Pending CN106512605A (en)

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Publication number Priority date Publication date Assignee Title
CN107525084A (en) * 2017-07-26 2017-12-29 深圳市国尚达科技有限公司 The harmless emission equipment and its discharge method at waste incineration station
CN108954339A (en) * 2018-04-16 2018-12-07 南安市创培电子科技有限公司 A kind of garbage burning factory waste gas treatment process
CN110559784A (en) * 2019-10-10 2019-12-13 浙江德慧环保科技有限公司 high-temperature flue gas purification system
CN112262001A (en) * 2018-06-13 2021-01-22 株式会社加来野制作所 Pyrolysis device

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CN105749693A (en) * 2016-04-09 2016-07-13 宁波加多美机械科技有限公司 Kitchen waste fermentation gas deodorizing and purifying device
CN105854571A (en) * 2016-06-21 2016-08-17 南通天蓝环保能源成套设备有限公司 Novel medical waste incineration flue gas purification system

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JPS5293672A (en) * 1976-02-03 1977-08-06 Sumitomo Metal Ind Ltd Desulfurization process of exhaust gas
CN2395150Y (en) * 1999-11-24 2000-09-06 成都市节能技术服务中心 Multi-stage splash wet desulfurizing and dust-removing device
CN202620929U (en) * 2012-04-06 2012-12-26 南昌航空大学 Water curtain type cylindrical surface water membrane desulfuration dust remover
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CN107525084A (en) * 2017-07-26 2017-12-29 深圳市国尚达科技有限公司 The harmless emission equipment and its discharge method at waste incineration station
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CN112262001A (en) * 2018-06-13 2021-01-22 株式会社加来野制作所 Pyrolysis device
CN110559784A (en) * 2019-10-10 2019-12-13 浙江德慧环保科技有限公司 high-temperature flue gas purification system

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