CN107224820A - A kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification - Google Patents
A kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification Download PDFInfo
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- CN107224820A CN107224820A CN201710363840.8A CN201710363840A CN107224820A CN 107224820 A CN107224820 A CN 107224820A CN 201710363840 A CN201710363840 A CN 201710363840A CN 107224820 A CN107224820 A CN 107224820A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
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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
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- 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
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- 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
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- 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
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention discloses a kind of cleaning treatment system and processing method for syngas combustion tail gas after Biohazard Waste burning or gasification, system includes quenching apparatus, two-part gas cleaning plant, oxidation unit, wet type desuperheat dust arrester, the exhanst gas outlet of the quenching apparatus passes through pipeline connection two-part gas cleaning plant, the import of the outlet oxidation unit of the two-part gas cleaning plant, the import of the outlet wet type desuperheat dust arrester of the oxidation unit, the outlet chimney of the wet type desuperheat dust arrester, air-introduced machine is provided between the wet type desuperheat dust arrester and chimney.The present invention uses two-part gas cleaning plant, is that the tail gas hydrogen chloride emission control under the conditions of high chlorine is up to standard there is provided effective guarantee；Being set to of oxidation unit realizes that nitrogen oxides, sulfide, bioxin and the control of other organic emissions reach that harsh discharge standard provides guarantee.
Description
Technical field
Present invention is mainly applied to environmental technology field, the disposal field of clinical waste, and in particular to one kind is for medical treatment
The cleaning treatment system and processing method of syngas combustion tail gas after castoff burning or gasification.
Background technology
Relative to house refuse and other industrial waste material resources, Biohazard Waste is mainly characterized by containing high specific weight
Plastics, especially polyvinyl chloride.Given up using the doctor burned or other high temperature process are handled, in its undressed combustion tail gas
Generally all contain the hydrogen chloride of suitable high concentration（2000~7000mg/Nm3）, Er bioxin concentration is higher than consumer waste incineration
One to two orders of magnitude.
According to national standard 18484-2014 dangerous waste incineration contamination control standards, the emission of Biohazard Waste needs to reach
It is less than 50 mg/Nm to hydrogen cloride concentration3, bioxin and furans concentration are less than 0.1 ng TEQ/Nm3；And more harsh U.S.
Environmental Protection Administration's standard requirement reaches that hydrogen cloride concentration is less than 6.6 mg/Nm3, bioxin and furans concentration less than 0.054ng TEQ/
Nm3。
Biohazard Waste processing system in the country's generally uses high temperature at present（1100~1200°C）And excessive oxygen（6~10%）
Fully burning, and suppress regeneration of the bioxin in tail gas temperature-fall period by spraying cooling mode.In tail gas clean-up technique
Middle use half dry type absorbs and charcoal absorption, and eventually passes sack cleaner removing dust and finally discharge.But this side
There are many problems in formula.
Firstly, since the fluctuation of combustion tail gas temperature and flow, control of the spray chilling to shower water requires very high, in reality
It is easy to the problem of tail gas desuperheat is excessive or very few occur in border operation running, and the addition of extra shower water is added
The burden of backend gas cleaning system, in the case where excessive water is added be easily caused the wet wall adhered particles dust of downstream line and
There is the phenomenon blocked；Half dry type absorption process is in actual applications because mud is as absorbent, and its preparation and transmitting procedure are all
The problem of easily blocking；And single charcoal absorption, not only itself is expensive, and usually requires excessive add
To ensure emission compliance, thus operating cost is high.In addition, the technological process is due to excessively simple, it is difficult to meet increasingly tight from now on
The discharge standard suitable with American Standard of lattice.
The content of the invention
Goal of the invention：The purpose of the present invention is for syngas combustion tail gas treatment process after doctor's waste burning at present or gasification
The problem of, optimize improvement and solve deficiency, and it is increasingly tight according to syngas combustion exhaust emissions after doctor's waste burning or gasification
The trend of lattice, releases more economic, reliable exhaust treatment system.
Technical scheme：A kind of gas for syngas combustion tail gas after Biohazard Waste burning or gasification of the present invention
Cleaning treatment system, including quenching apparatus, two-part gas cleaning plant, oxidation unit, wet type desuperheat dust arrester, the urgency
Device for cooling is provided with smoke inlet and exhanst gas outlet, and the exhanst gas outlet of the quenching apparatus passes through pipeline connection two-part gas purification
Device, the import of the outlet oxidation unit of the two-part gas cleaning plant, the outlet of the oxidation unit is wet
The import of formula desuperheat dust arrester, the outlet chimney of the wet type desuperheat dust arrester, the wet type desuperheat dust arrester
Air-introduced machine is provided between chimney.
Further, the quenching apparatus is multitubular boiler.The design of multitubular boiler multi-return-stroke type instead of in the prior art
Chilling spray realize the chilling of tail gas, can realize in 1 ~ 2 second by gas be chilled to from 1100 ~ 1200 °C 250 °C or so with
Avoid the peak temperature section that bioxin is regenerated.Compared with spraying chilling, it has other advantages again：Due to multitubular boiler control
The steam under constant pressure is produced, Qi Shui sides temperature keeps relative stability, so without especially controlling, after doctor's waste burning or gasification
Syngas combustion tail gas big change will not occur in the outlet temperature of multitubular boiler due to tolerance or inlet temperature fluctuation；
Because tail gas and water are not directly contacted with multitubular boiler, so vent gas treatment amount will not increase because of the addition of cooling water,
Be not in the problems such as wet wall of downstream line is blocked caused by cooling water excess.
The two-part gas cleaning plant include one-level dry type reactor, two grades of dry type reactors, primary dust removing device and
Secondary ash collector, the exhanst gas outlet of quenching apparatus described in the one-level dry type gas reactor inlet communication, the reaction of one-level dry type
The gas vent of device connects the gas access of primary dust removing device, gas vent two grades of dry type reactors of connection of primary dust removing device
Gas access, the gas vent of two grades of dry type reactors connects the gas access of secondary ash collector.
Further, the primary dust removing device is common sack cleaner, and the secondary ash collector is catalysis bag-type dust
Device.The present invention is removed using catalysis sack cleaner for bioxin.The catalyst can be under conditions of higher than 190 °C
Realize more than 99% degradation efficiency.Bioxin can be thoroughly removed by the way of catalytic elimination, rather than charcoal absorption
The problem of there is secondary pollution like that.Meanwhile, with reference to the comprehensive profit of Dry absorption, adsorptive reactor and catalysis sack cleaner
With activated carbon is mainly based on heavy metal adsorption, and its consumption can be substantially reduced.
Further, the secondary ash collector is also communicated with a surge tank, and the buffering fills the connection one-level dry type
Reactor.
Further, the oxidation unit is advanced oxidation device, in the advanced oxidation device using ozone, hydrogen peroxide,
The combined treatment tail gas of one or more of arbitrary proportions in catalyst or low temperature plasma.In 140 ~ 190 °C of low temperature model
Enclose removal of the interior realization to nitrogen oxides, sulfide, bioxin and other residual organic matters.Advanced oxidation device is contemplated that appropriate spray
Drench cooling to reach optimal reaction temperature condition, or add other pharmacy responses（Such as：Ammonia）Targetedly to aid in specific dirt
Contaminate the removing of thing.Advanced oxidation device reaches more harsh nitrogen oxidation for syngas combustion tail gas after realizing doctor's waste burning or gasifying
Thing, sulfide, the emission control of bioxin and other organic matters are provided and ensured.On the other hand, because advanced oxidation device can be with
The degradation effect that single catalyst is unable to reach under cryogenic is realized, it can be used as guarantor after catalysis sack cleaner failure
Second fort of Zheng dioxin emissions.
Further, the wet type desuperheat dust arrester includes wet type desuperheat tower and wet cottrell, the oxidation
The outlet wet type desuperheat tower of device, the outlet wet cottrell of the wet type desuperheat tower, the wet electrostatic
Deduster bottom is provided with cistern, and the wet cottrell upper end is additionally provided with water inlet, cistern connection outlet pipe
The branch pipe of waste discharge is additionally provided with road, outlet conduit connection wet type desuperheat tower, outlet conduit.
The present invention is also provided at a kind of gas purification of syngas combustion tail gas after burning or gasify for Biohazard Waste
Reason method, including following several steps：
1）Syngas combustion tail gas enters quenching apparatus from gas feed after Biohazard Waste is burned or gasified, the tail in 1-2 seconds
Gas is chilled to 240 ~ 260 DEG C or so from 1100 ~ 1200 DEG C；
2）By step 1）Tail gas after cooling, sequentially enters one-level dry type reactor, primary dust removing device, two grades of dry type reactors
And secondary ash collector, the reaction temperature in the one-level, two grades of dry type reactors is that between 200 ~ 250 °C, the residence time is 1 ~ 3
In second；Excessive absorbent and adsorbent is sent into two grades of dry type reactors, is then collected in secondary ash collector, described two
Absorbent and adsorbent in level deduster are recycled into one-level dry type reactor；
3）The tail gas discharged through secondary ash collector carries out oxidation processes by advanced oxidation device, and treatment temperature is 140 ~ 190 DEG C；
4）The gas discharged by advanced oxidation device is cooled into wet type desuperheat tower, makes entering into wet cottrell
Mouth tail gas reaches the gas humidity saturation state under 60 ~ 80 °C, and sour gas is carried out and micro- subsequently into wet cottrell
The removal of dust particle；
5）The tail gas discharged by wet cottrell is discharged into air through air-introduced machine feeding chimney.
Further, the absorbent is calcium hydroxide, sodium hydroxide or sodium acid carbonate, and the adsorbent is activated carbon.
Further, the water in the cistern of the wet cottrell bottom squeezes into wet type desuperheat by circulating pump
Addition alkali lye is neutralized before water in tower, the cistern passes through circulating pump, and the water part after neutralization is as useless
Water is excluded, and is partly into the recycling of wet type desuperheat tower.
Recirculated water is to squeeze into wet type desuperheat tower from the cistern of wet cottrell bottom by circulating pump, through wet type desuperheat
The nozzle formation droplet of tower is sufficiently mixed with the flue gas entered, realizes that flue gas desuperheat is cooled down.Recirculated water and smoke mixture are from wet
After formula desuperheat tower comes out, into wet cottrell entrance, gas-water separation is realized herein.Recirculated water is discharged into and received by weight
Collect the cistern in wet cottrell bottom.Material is thus formed a loop.
In view of having sour gas in flue gas, wet type is squeezed into by circulating pump from the cistern of wet cottrell bottom and subtracted
The pipeline of warm tower adds to neutralize the acidic materials in flue gas provided with alkali lye, ensures that the pH value in water is constantly in 7.0 ~ 8.5
Alkalescence condition.In view of the enrichment of pollutant in recirculated water, part recirculated water outer can be arranged, and the draining is subtracted by circulating pump to wet type
Branch pipe discharge on the pipeline of warm tower.To maintain cistern water level balance, wet cottrell enters provided with cistern make-up water
Water interface.Cistern is also equipped with the discharge coupling being connected with circulating pump simultaneously.
The present invention uses the desuperheat with self-circulating water and wet static dedusting system.Wet type desuperheat tower is utilized in flue gas not
Saturated humidity, is cooled by substantial amounts of self-circulating water and smoke contacts evaporation endothermic, make electrostatic precipitator import flue gas reach 60 ~
Gas humidity saturation state under 80 °C.Because cooling is realized by the evaporation of inner loop water, system is extra without considering
Heat exchange and cooling system.The combination of wet type desuperheat tower and wet cottrell has ensured electrostatic precipitator to sour gas
And the efficient removal of micro-dust particles thing, specifically ensure that less than 6.6 mg/Nm3Hydrogen cloride concentration realization.Recirculated water leads to
Cross pH meter monitoring and in the range of alkali lye addition neutralization maintains pH value 7.0 ~ 8.5.Because tail gas is after front-end processing, its
Major pollutants are the inorganic matter based on sodium salt and villaumite, can emission compliance without complicated draining purified treatment.
Dry type reactor of the present invention direct plunges into powdered reaction medicament, not only simplify the pretreatment demand of absorbent, and
And the problems such as avoid line clogging in the conveying of potential absorbent and discharge process.Dry type reactor is set using tubular type simultaneously
Meter, can add the blender at mouth by medicament and the turbulent flow guide plate inside pipeline realize the sufficient anti-of medicament and tail gas
Should, so that in low residence times（1 ~ 3 second）Realize fully reaction.The problem of due in the absence of aqueous vapor evaporative cooling, reaction
Tail gas afterwards can still maintain higher temperature（>200°C）, the use for back-end catalytic cloth bag provides prerequisite.
The system that the present invention is constituted using two-part dry type reactor and sack cleaner.In general, the depickling of single-stage
Absorb its efficiency general 90 ~ 95% or so.So, under the conditions of syngas combustion tail gas is containing high chlorine after doctor's waste burning or gasification
50 mg/Nm difficult to realize3Hydrogen chloride discharge standard.And the tail gas hydrogen chloride discharge control being designed as under the conditions of high chlorine of two-part
System is up to standard to provide effective guarantee.On the other hand, two grades of sack cleaners are also reduced by the absorption and sorption reaction of the first order
The risk that the catalysis cloth bag of use is failed by the impact of potential sulfide and heavy metal contaminants in tail gas.
The present invention is added using absorbent and adsorbent by two grades of dry type reactors, then is returned by two grades of sack cleaners
Receive, the reverse one-level dry type reactor that adds makes full use of.The utilization rate of absorption and sorption agent is so substantially increased, is reduced anti-
The dosage of medicament is answered, so as to reduce the yield of secondary pollution.
Beneficial effect：The present invention uses two-part gas cleaning plant, the tail gas being designed as under the conditions of high chlorine of two-part
Hydrogen chloride emission control is up to standard to provide effective guarantee；Being set to of oxidation unit realize nitrogen oxides, sulfide, bioxin and
Other organic emission controls reach that harsh discharge standard provides guarantee；The present invention uses the desuperheat with self-circulating water and wet
Formula electrostatic precipitation system, wet type desuperheat tower utilizes the unsaturated humidity in flue gas, is contacted by substantial amounts of self-circulating water with tail gas
Evaporation endothermic cools, and electrostatic precipitator inlet exhaust gas is reached the gas humidity saturation state under 60 ~ 80 °C, because cooling is logical
The evaporation for crossing inner loop water realizes that system need not consider extra heat exchange and cooling system.
Embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment, the invention will be further described, these implementations
Example is only used for explaining the present invention, is not intended to limit the scope of the present invention..
The gas purification processing system of syngas combustion tail gas after embodiment 1 is burned or gasified for Biohazard Waste
As shown in figure 1, for the gas purification processing system of syngas combustion tail gas after Biohazard Waste burning or gasification, including
Multitubular boiler 10, two-part gas cleaning plant 20, advanced oxidation device 30, wet type desuperheat dust arrester 40, multitubular boiler 10 is opened
Have smoke inlet 101 and exhanst gas outlet, the exhanst gas outlet of multitubular boiler 10 by pipeline connection two-part gas cleaning plant 20,
The import of the outlet advanced oxidation device 30 of two-part gas cleaning plant 20, the outlet wet type of advanced oxidation device 30 subtracts
The import of warm dust arrester 40, the outlet chimney 60 of wet type desuperheat dust arrester 40, wet type desuperheat dust arrester 40 and cigarette
Air-introduced machine 50 is provided between chimney 60.
Two-part gas cleaning plant 20 includes one-level dry type reactor 21, two grades of dry type reactors 23, primary dust removing devices
22 and secondary ash collector 24, the gas feed of one-level dry type reactor 21 connects the exhanst gas outlet of multitubular boiler 10, and one-level dry type is anti-
The gas vent of device 21 is answered to connect the gas access of primary dust removing device 22, the gas vent of primary dust removing device 22 connects two grades of dry types
The gas access of reactor 23, the gas vent of two grades of dry type reactors 23 connects the gas access of secondary ash collector.Two grades are removed
The import of the gas access connection advanced oxidation device 30 of dirt device.Primary dust removing device 22 is common sack cleaner, secondary ash collector
24 be catalysis sack cleaner.Secondary ash collector 24 is also communicated with a surge tank, and the buffering fills the connection one-level dry type
Reactor 21.
Wet type desuperheat dust arrester 40 includes wet type desuperheat tower 41 and wet cottrell 42, and advanced oxidation device 30 goes out
Mouth connection wet type desuperheat tower 41, the outlet wet cottrell 42 of wet type desuperheat tower 41, the bottom of wet cottrell 42
Portion is provided with cistern, and the upper end of wet cottrell 42 is additionally provided with water inlet 402, cistern connection outlet conduit, water outlet
The branch pipe of waste discharge 411 is additionally provided with pipeline communication wet type desuperheat tower 41, outlet conduit.
The gas purification processing method of syngas combustion tail gas after embodiment 2 is burned or gasified for Biohazard Waste
Including following several steps：
1）Syngas combustion tail gas enters multitubular boiler 10 from gas feed after Biohazard Waste is burned or gasified, in 1-2 seconds
Tail gas is chilled to 240 ~ 260 DEG C or so from 1100 ~ 1200 DEG C；
2）By step 1）Tail gas after cooling, sequentially enters one-level dry type reactor 21, primary dust removing device 22, two grades of dry types anti-
Device 23 and secondary ash collector 24 are answered, the reaction temperature of one-level dry type reactor 21 is 230 ~ 250 DEG C, 1 second residence time, two grades are done
The temperature of formula reactor 23 is 200 ~ 220 DEG C, 1 second residence time；The excessive absorbent of feeding in two grades of dry type reactors 23
Calcium hydroxide and activated carbon of sorbent, remove sour gas, heavy metal and organic matter；Then collected in secondary ash collector 24,
Absorbent and adsorbent in the secondary ash collector 24 are recycled by surge tank feeding one-level dry type reactor 21；
3）The tail gas discharged through secondary ash collector 24 carries out oxidation processes by advanced oxidation device 30, and treatment temperature is 160 ~ 180
DEG C, vent gas treatment is carried out using ozone in advanced oxidation device；
4）The gas discharged by advanced oxidation device 30 is cooled into wet type desuperheat tower 41, makes to enter wet cottrell
42 inlet exhaust gas reaches the gas humidity saturation state under 60 ~ 80 °C, and acidity is carried out subsequently into wet cottrell 42
The removal of gas and micro-dust particles thing；Water in the cistern of the bottom of wet cottrell 42 squeezes into wet type by circulating pump
Addition alkali lye 401 is neutralized before water in desuperheat tower 41, the cistern passes through circulating pump, one, the water after neutralization
It is allocated as excluding for waste water 411, is partly into the recycling of wet type desuperheat tower；
5）The tail gas discharged by wet cottrell 42 is discharged into air through the feeding chimney 60 of air-introduced machine 50.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of cleaning treatment system for syngas combustion tail gas after Biohazard Waste burning or gasification, it is characterised in that
Including quenching apparatus, two-part gas cleaning plant, oxidation unit, wet type desuperheat dust arrester, the quenching apparatus is provided with cigarette
Gas entrance and exhanst gas outlet, the exhanst gas outlet of the quenching apparatus pass through pipeline connection two-part gas cleaning plant, described two
The import of the outlet oxidation unit of segmentation gas cleaning plant, the outlet wet type desuperheat dedusting dress of the oxidation unit
The import put, the outlet chimney of the wet type desuperheat dust arrester is set between the wet type desuperheat dust arrester and chimney
There is air-introduced machine.
2. cleaning treatment system according to claim 1, it is characterised in that the quenching apparatus is multitubular boiler.
3. cleaning treatment system according to claim 1, it is characterised in that the two-part gas cleaning plant includes one
Level dry type reactor, two grades of dry type reactors, primary dust removing device and secondary ash collector, the one-level dry type gas reactor import
The exhanst gas outlet of the quenching apparatus is connected, the gas vent of one-level dry type reactor connects the gas access of primary dust removing device,
The gas vent of primary dust removing device connects the gas access of two grades of dry type reactors, the gas vent of two grades of dry type reactors
Connect the gas access of secondary ash collector.
4. cleaning treatment system according to claim 3, it is characterised in that the primary dust removing device is common bag-type dust
Device, the secondary ash collector is catalysis sack cleaner.
5. cleaning treatment system according to claim 3, it is characterised in that the secondary ash collector is also communicated with one and delayed
Tank is rushed, the surge tank connects the one-level dry type reactor.
6. cleaning treatment system according to claim 1, it is characterised in that the oxidation unit is advanced oxidation device, institute
State in advanced oxidation device using ozone, hydrogen peroxide, catalyst or one or more of arbitrary proportions in low temperature plasma
Combined treatment tail gas.
7. cleaning treatment system according to claim 1, it is characterised in that the wet type desuperheat dust arrester includes wet type
Desuperheat tower and wet cottrell, the outlet wet type desuperheat tower of the oxidation unit, the outlet of the wet type desuperheat tower
Wet cottrell is connected, the wet cottrell bottom is provided with cistern, the wet cottrell upper end
It is additionally provided with water inlet, cistern connection outlet conduit, outlet conduit connection wet type desuperheat tower, outlet conduit and is additionally provided with discharge
The branch pipe of waste water.
8. a kind of purifying treatment method for syngas combustion tail gas after Biohazard Waste burning or gasification, it is characterised in that
Including following several steps：
1）Syngas combustion tail gas enters quenching apparatus from gas feed after Biohazard Waste is burned or gasified, the tail in 1-2 seconds
Gas is chilled to 240 ~ 260 DEG C or so from 1100 ~ 1200 DEG C；
2）By step 1）Tail gas after cooling, sequentially enters one-level dry type reactor, primary dust removing device, two grades of dry type reactors
And secondary ash collector, the reaction temperature in the one-level, two grades of dry type reactors is that between 200 ~ 250 °C, the residence time is 1 ~ 3
In second；Excessive absorbent and adsorbent is sent into two grades of dry type reactors, is then collected in secondary ash collector, described two
Absorbent and the buffered tank of adsorbent in level deduster are recycled into one-level dry type reactor；
3）The tail gas discharged through secondary ash collector carries out oxidation processes by advanced oxidation device, and treatment temperature is 140 ~ 190 DEG C；
4）The gas discharged by advanced oxidation device is cooled into wet type desuperheat tower, makes entering into wet cottrell
Mouth tail gas reaches the gas humidity saturation state under 60 ~ 80 °C, and sour gas is carried out and micro- subsequently into wet cottrell
The removal of dust particle；
5）The tail gas discharged by wet cottrell is discharged into air through air-introduced machine feeding chimney.
9. the purifying treatment method according to claim 8 for Biohazard Waste tail gas, it is characterised in that the absorption
Agent is calcium hydroxide, sodium hydroxide or sodium acid carbonate；The adsorbent is activated carbon.
10. according to the purification according to claim 8 for syngas combustion tail gas after Biohazard Waste burning or gasification
Processing method, it is characterised in that the water in the cistern of the wet cottrell bottom is squeezed into wet type by circulating pump and subtracted
Addition alkali lye is neutralized before water in warm tower, the cistern passes through circulating pump, a part of conduct of the water after neutralization
Waste water is excluded, and is partly into the recycling of wet type desuperheat tower.
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| CN108775585A (en) * | 2018-07-04 | 2018-11-09 | 加拿大艾浦莱斯有限公司 | A kind of waste high temperature air/water steam gasification, and combustion fusing system |
| CN109833770A (en) * | 2017-11-24 | 2019-06-04 | 中科天龙（厦门）环保股份有限公司 | A kind of bioactive molecule coupling cloth bag oxidation catalyst filter technique for incineration flue gas near-zero release |
| CN110394351A (en) * | 2019-07-26 | 2019-11-01 | 昆明理工大学 | The Short flow method and its system of dioxin in a kind of degradation flying dust |
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| CN1720091A (en) * | 2002-10-01 | 2006-01-11 | 艾尔波清洁能源有限公司 | Flue gas purification method |
| JP5302597B2 (en) * | 2008-08-21 | 2013-10-02 | 株式会社タクマ | Exhaust gas treatment apparatus and exhaust gas treatment method |
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| CN108775585A (en) * | 2018-07-04 | 2018-11-09 | 加拿大艾浦莱斯有限公司 | A kind of waste high temperature air/water steam gasification, and combustion fusing system |
| CN108775585B (en) * | 2018-07-04 | 2020-05-12 | 加拿大艾浦莱斯有限公司 | Waste high-temperature air/steam gasification combustion melting system |
| CN110394351A (en) * | 2019-07-26 | 2019-11-01 | 昆明理工大学 | The Short flow method and its system of dioxin in a kind of degradation flying dust |
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