CN103990364A - Incineration flue gas treatment system and incineration flue gas treatment method - Google Patents
Incineration flue gas treatment system and incineration flue gas treatment method Download PDFInfo
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- CN103990364A CN103990364A CN201410246610.XA CN201410246610A CN103990364A CN 103990364 A CN103990364 A CN 103990364A CN 201410246610 A CN201410246610 A CN 201410246610A CN 103990364 A CN103990364 A CN 103990364A
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Abstract
The invention discloses an incineration flue gas treatment system and an incineration flue gas treatment method. The incineration flue gas treatment system comprises a quench tower, a circulating fluidized bed, a bag-type dust collector, an activated carbon adding device and an alkali liquor spraying and washing tower, wherein the circulating fluidized bed is connected with the quench tower; the bag-type dust collector is connected with the circulating fluidized bed; the activated carbon adding device is arranged between the circulating fluidized bed and the bag-type dust collector; the alkali liquor spraying and washing tower is connected with the bag-type dust collector. By utilizing the incineration flue gas treatment system, the processed incineration flue gas can reach state-related pollution control standards and pollutant discharge standards.
Description
Technical field
The present invention relates to environmental energy field, particularly, the method that the present invention relates to process the system of incineration flue gas and process incineration flue gas.
Background technology
According to < < consumer waste incineration, process engineering legislation > >, < < hazardous waste is concentrated incineration disposal engineering construction specification requirement (trying) > >, incineration flue gas of household garbage treatment process is generally semidry method at present, dry method, wet method combination depickling, dedusting, purify, these technology application can make flue gas processing reach the emission request that < < consumer waste incineration pollutes control criterion > > and < < dangerous waste incineration pollution control criterion > >.But said method changes smoke components and the stability control ability for the treatment of effect is limited.
Summary of the invention
The present invention is intended to solve at least to a certain extent one of technical problem in correlation technique.For this reason, one object of the present invention is to propose a kind of system of processing incineration flue gas, and this system can effectively change complicated incineration flue gas to composition and stablize processing.
The system of processing according to an embodiment of the invention incineration flue gas, comprising:
Quench tower, described quench tower has tower flue gas import, tower flue gas outlet, low-temperature receiver import and the outlet of dirt mud, and described quench tower is suitable for described incineration flue gas to lower the temperature;
Recirculating fluidized bed, described recirculating fluidized bed has fluidized bed smoke import, fluidized bed smoke outlet, lime import and alkali lye import, described fluidized bed smoke import is connected with described tower flue gas outlet, lime import and alkali lye import are suitable for spraying into respectively lime and alkali lye, to remove the sour gas in described incineration flue gas;
Sack cleaner, described sack cleaner has deduster gas approach, described deduster exhanst gas outlet and flying dust outlet, described deduster gas approach is connected with described fluidized bed smoke outlet, and the incineration flue gas that described sack cleaner is suitable for discharging from described recirculating fluidized bed carries out dust removal by filtration processing;
Active carbon adding apparatus, described active carbon jetting device is arranged between described recirculating fluidized bed and described sack cleaner, and described active carbon adding apparatus is suitable for spraying into active carbon in described recirculating fluidized bed to adsorb heavy metal in described incineration flue gas with dioxin pollutant to the incineration flue gas of discharging;
Alkali lye spray scrubber, described alkali lye spray scrubber has scrubbing tower gas approach, scrubbing tower exhanst gas outlet and alkali lye import, described scrubbing tower gas approach is connected with described deduster exhanst gas outlet, and described alkali lye spray scrubber is suitable for removing sour gas, solid particle and the heavy metal the incineration flue gas of discharging from described sack cleaner.
The system of the processing incineration flue gas of above-described embodiment can be down to 200～250 degrees Celsius by the temperature of incineration flue gas by quench tower in one second, can thoroughly the sour gas in incineration flue gas be discharged further by recirculating fluidized bed and alkali lye spray scrubber.Application the above embodiment of the present invention processing incineration flue gas system thoroughly removal heavy metal with dioxin pollutant.The system of the processing incineration flue gas of above-described embodiment goes for the processing of the processing of incineration flue gas of household garbage, the processing of industrial waste incineration flue gas and dangerous waste incineration flue gas in addition, and after processing, exhaust emissions concentration can reach respectively national relevant emission standards.
In some embodiments of the invention, the system of the processing incineration flue gas of above-described embodiment can further include: waste heat boiler, described waste heat boiler is connected with described quench tower, and is suitable for reclaiming the heat of described incineration flue gas.Can further improve treatment effeciency and heat utilization ratio thus, avoid energy waste.
In some embodiments of the invention, the system of the processing incineration flue gas of above-described embodiment can further include:
Demister, described demister has demist gas approach, demist exhanst gas outlet and spent lye outlet, and described demist gas approach is connected with scrubbing tower exhanst gas outlet, and described demister is suitable for removing water smoke;
Adsorbent equipment, described adsorbent equipment has absorption gas approach and purifying smoke outlet and spent sorbents outlet, described absorption gas approach is connected with described demist exhanst gas outlet, and described adsorbent equipment is suitable for absorbing acid gases, heavy metal particles He dioxin pollutant.Can combine use with adsorbent equipment by demister thus, can further improve the adsorption capacity of adsorbent in adsorbent equipment, to further improve the treatment effeciency of pollutant in incineration flue gas.
In one embodiment of the invention, the multilayer adsorbent beds that described adsorbent equipment is lower resistance.Can further remove water smoke, sour gas, heavy metal dusts He dioxin pollutant thus.
In some embodiments of the invention, the system of the processing incineration flue gas of above-described embodiment can further include: flying dust temporary library, the flying dust outlet of the dirt mud outlet of described flying dust temporary library and described quench tower, described sack cleaner and the spent sorbents outlet of described adsorbent equipment are connected, so as to deposit dirt mud from described quench tower, from the flying dust of described sack cleaner and from the spent sorbents of adsorbent equipment.
In some embodiments of the invention, one of being at least connected of the alkali lye import of the outlet of described spent lye and the low-temperature receiver import of described quench tower, the alkali lye import of described alkali lye spray scrubber and described recirculating fluidized bed, so as by the alkali lye from described demister discharge be back to described alkali lye spray scrubber, described recirculating fluidized bed and described quench tower one of at least.Can further improve the utilization rate of alkali lye thus, to further improve treatment effeciency.
According to a further aspect in the invention, the present invention proposes a kind of method of utilizing the system processing incineration flue gas of foregoing processing incineration flue gas, it is characterized in that, comprising:
Incineration flue gas is passed into described quench tower, to described incineration flue gas is lowered the temperature and obtained low temperature incineration flue gas;
Low temperature incineration flue gas is delivered in the described recirculating fluidized bed being connected with described quench tower, to utilize from described lime import and alkali lye import to spray into respectively lime and alkali lye is removed the sour gas described incineration flue gas;
To spray into active carbon in the incineration flue gas of discharging from described recirculating fluidized bed to adsorb heavy metal in described incineration flue gas with dioxin pollutant;
Incineration flue gas after utilizing sack cleaner to adsorption treatment carries out dust removal by filtration processing;
Utilize alkali lye spray scrubber to wash the incineration flue gas of processing through described dust removal by filtration, to remove sour gas, solid particle and heavy metal.
The method of the processing incineration flue gas of the above embodiment of the present invention further comprises: utilize waste heat boiler in advance the described incineration flue gas passing in described quench tower to be carried out to waste heat recovery.Can further improve treatment effeciency and heat utilization ratio thus, avoid energy waste.
The method of the processing incineration flue gas of the above embodiment of the present invention further comprises: utilize demister to remove the water smoke the incineration flue gas of discharging from described alkali lye spray scrubber; And
Utilize water smoke, sour gas, heavy metal particles He the dioxin pollutant of adsorbent equipment absorption from the incineration flue gas of described demister discharge;
Utilize flying dust temporary library deposit dirt mud from described quench tower, from the flying dust of described sack cleaner and from the spent sorbents of adsorbent equipment.Thus by advance the incineration flue gas after alkali lye spray being removed to water smoke, carry out again adsorption treatment, can further improve thus the adsorption capacity of adsorbent in adsorbent equipment, to further improve the pollutant treatment effeciency of incineration flue gas and reduce pollutant load.
The method of the processing incineration flue gas of the above embodiment of the present invention further comprises: by the alkali lye of discharging from described demister be back to described alkali lye spray scrubber, described recirculating fluidized bed and described quench tower one of at least, to remove the sour gas in described incineration flue gas and/or reduce the temperature of described incineration flue gas.Can further improve the utilization rate of alkali thus, to further improve the treatment effeciency of sour gas.
Accompanying drawing explanation
Fig. 1 is the structural representation of processing according to an embodiment of the invention the system of incineration flue gas.
Fig. 2 is the structural representation of processing in accordance with another embodiment of the present invention the system of incineration flue gas.
Fig. 3 is the flow chart of processing according to an embodiment of the invention the method for incineration flue gas.
Fig. 4 is the flow chart of processing in accordance with another embodiment of the present invention the method for incineration flue gas.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment being described with reference to the drawings, be exemplary, be intended to for explaining the present invention, and can not be interpreted as limitation of the present invention.
Below with reference to Fig. 1, describe according to the system of processing incineration flue gas of the invention process.
According to the system 100 of the processing incineration flue gas of the embodiment of the present invention, comprise: quench tower 10, recirculating fluidized bed 20, sack cleaner 30, active carbon adding apparatus 40, alkali lye spray scrubber 50;
Wherein, quench tower 10 has tower flue gas import 11, tower flue gas outlet 12, low-temperature receiver import 13 and dirt mud outlet 14; Quench tower 10 is suitable for incineration flue gas to lower the temperature, to obtain low temperature incineration flue gas.According to a particular embodiment of the invention, utilize above-mentioned quench tower by spraying into the form of water smoke, can make the temperature of incineration flue gas be down to rapidly 200～250 degrees Celsius; For example can in 1 second, the temperature of incineration flue gas be dropped to 200 degrees Celsius from 500～600 degrees Celsius.Can further improve thus the efficiency of processing incineration flue gas.
Recirculating fluidized bed 20 has fluidized bed smoke import 21, fluidized bed smoke outlet 22, lime import 23 and alkali lye import 24, and fluidized bed smoke import 21 is connected with the tower flue gas outlet 12 of quench tower; From lime import 21 and alkali lye import 22, spray into respectively lime and alkali lye, to remove the sour gas in incineration flue gas; According to a particular embodiment of the invention, by lime import 21 and alkali lye import 22, can effectively control the addition of lime and alkali lye, according to a particular embodiment of the invention, lime and alkali lye can be added in recirculating fluidized bed 20 according to the proportioning of 1:1.The efficiency that can further improve resource utilization and remove sour gas thus, adds lime can reduce the consumption of alkali lye, makes sour gas generate calcium salt and removes, to reduce operating cost.According to a particular embodiment of the invention, lime and alkali lye can adopt respectively blast injection, and ratio is adjustable.
Sack cleaner 30 has deduster gas approach 31, deduster exhanst gas outlet 32 and flying dust outlet 33, and deduster gas approach 31 is connected with the fluidized bed smoke outlet 22 of recirculating fluidized bed 20; Sack cleaner 30 and the incineration flue gas that is suitable for active carbon jetting device to discharge carry out dust removal by filtration processing.Can effectively remove thus solid particle flue dust in incineration flue gas etc.
Active carbon jetting device 40 is arranged between recirculating fluidized bed 20 and sack cleaner 30, active carbon adding apparatus 40 be suitable for spraying into active carbon to the incineration flue gas from recirculating fluidized bed 20 interior discharges in case the heavy metal of absorption in incineration flue gas with dioxin pollutant.Thus by active carbon jetting device 40 being set between recirculating fluidized bed 20 and sack cleaner 30, can be before removing solid particle, utilize active carbon by the heavy metal in incineration flue gas with dioxin pollutant adsorbs, thereby form large particle, by sack cleaner 30, filtered.Sack cleaner 30 not only can filter out the solid flue dust in incineration flue gas thus, can also filter out heavy metal and the dioxin pollutant of part, can further improve thus the contaminant removal efficiency of processing incineration flue gas.
Alkali lye spray scrubber 50 has scrubbing tower gas approach 51, scrubbing tower exhanst gas outlet 52 and alkali lye import 53, and scrubbing tower gas approach 51 is connected with deduster exhanst gas outlet 32.Alkali lye spray scrubber 50 is suitable for remove sour gas, solid particle and the heavy metal in the incineration flue gas of discharging from sack cleaner.Further incineration flue gas is purified again thus.
As shown in Figure 2, according to a particular embodiment of the invention, the system of the processing incineration flue gas of above-described embodiment can further include: waste heat boiler 60, waste heat boiler 60 is connected with the tower flue gas import of quench tower 10, and is suitable for reclaiming the heat of incineration flue gas.Can further improve treatment effeciency and heat utilization ratio thus, avoid energy waste.
According to a particular embodiment of the invention, the system of the processing incineration flue gas of above-described embodiment can further include: demister 70 and adsorbent equipment 80; Demister 70 has demist gas approach 71, demist exhanst gas outlet 72 and spent lye outlet 73, and demist gas approach 71 is connected with scrubbing tower exhanst gas outlet 52; Adsorbent equipment 80 has absorption gas approach 81 and purifying smoke outlet 82 and spent sorbents outlet 83, and absorption gas approach 81 is connected with demist exhanst gas outlet 72.
According to a particular embodiment of the invention, demister 70 is suitable for removing the water smoke from the incineration flue gas of alkali lye spray scrubber 50 interior discharges; Adsorbent equipment 80 is suitable for absorbing acid gases, heavy metal particles He dioxin pollutant.The system of the processing incineration flue gas of the embodiment of the present invention arranges associating use by demister 70 with adsorbent equipment 80, demister 70 can be removed 50% the water smoke of being not less than in incineration flue gas in advance, can avoid thus water smoke to form shutoff to the interior adsorbent of adsorbent equipment 80, reduce surface area and the activity of adsorbent, and then improve adsorbent utilization ratio, to further improve the pollutant removing efficiency of incineration flue gas and reduce pollutant load.
Therefore the system of the processing incineration flue gas of the above embodiment of the present invention is combined use by demister 70 is set with adsorbent equipment 80, compared with " demister+heater " in correlation technique, there is the white cigarette effect that disappears more stable, more energy-conservation (not needing to heat again), the advantage of minimizing Air Pollutant Emission total amount; Same demister 70 is combined use can effectively prevent that compared with " coke absorption separately " process for purifying water smoke from can form shutoff to adsorbent with adsorbent equipment 80, reduce adsorbent specific area and activity and can reduce adsorbent consumption, thereby reducing the advantages such as operating cost.Therefore the system of the processing incineration flue gas of the above embodiment of the present invention can improve more than 30% the removal efficiency of atmosphere pollution.
According to a particular embodiment of the invention, adsorbent equipment can adopt the multilayer adsorbent beds of lower resistance.Make thus pollutant removing rate reach 80% high clean-up effect.
The system of processing incineration flue gas according to the above embodiment of the present invention further comprises: flying dust temporary library 90, the dirt mud outlet 14 of flying dust temporary library 90 and quench tower, the spent sorbents outlet 83 of the flying dust outlet 33 of sack cleaner and adsorbent equipment be connected, to deposit from the dirt mud of quench tower 10 with from the flying dust of sack cleaner 30 and from the spent sorbents of adsorbent equipment 80.
According to a particular embodiment of the invention, one of being at least connected of the spent lye outlet 73 of demister and the alkali lye import 24 of the low-temperature receiver import 13 of quench tower, the alkali lye import 53 of alkali lye spray scrubber and recirculating fluidized bed, so as by the alkali lye from demister 70 discharges be back to alkali lye spray scrubber 50, recirculating fluidized bed 20 and quench tower 10 one of at least.Can further improve the utilization rate of alkali lye thus, avoid waste, further improve treatment effeciency simultaneously.
The system of processing incineration flue gas according to the above embodiment of the present invention goes for various incineration flue gas, such as being incineration flue gas of household garbage, industrial waste incineration flue gas, dangerous waste incineration flue gas etc.Process the more complicated incineration flue gas of composition and still can reach stable treatment effect, and can reach relevant control criterion and the pollutant emission standard polluted of country.
According to a further aspect in the invention, the system that the invention allows for a kind of processing incineration flue gas that utilizes above-described embodiment is processed the method for incineration flue gas.
Below with reference to Fig. 3, describe according to the method for the processing incineration flue gas of the embodiment of the present invention.
The method of processing the system processing incineration flue gas of incineration flue gas according to the utilization of the embodiment of the present invention comprises:
S100: cooling rapidly
According to a particular embodiment of the invention, the processing of first incineration flue gas being lowered the temperature.Specifically incineration flue gas can be passed in quench tower 10, to incineration flue gas is lowered the temperature and obtained low temperature incineration flue gas.Can further improve treatment effeciency thus.Quench tower 10 can be down to rapidly 200～250 degrees Celsius by the temperature of incineration flue gas by spraying into the form of water smoke, for example, the temperature of incineration flue gas can be dropped to rapidly to 200 degrees Celsius from 500～600 degrees Celsius within 1 second.Can further control incineration flue gas generation of dioxin thus.
S200: remove sour gas
According to a particular embodiment of the invention, further above-mentioned low temperature incineration flue gas is delivered in the recirculating fluidized bed 20 being connected with quench tower 10, by lime import 21 and alkali lye import 22, sprays into respectively lime and alkali lye is removed the sour gas in described incineration flue gas simultaneously.According to a particular embodiment of the invention, by lime import 21 and alkali lye import 22, can effectively control the addition of lime and alkali lye, according to a particular embodiment of the invention, lime and alkali lye can be added in recirculating fluidized bed 20 according to the proportioning of 1:1.The efficiency that can further improve resource utilization and remove sour gas thus, the lime adding can absorb the calcium salt producing after sour gas to be removed in follow-up sack cleaner, reduces alkali lye consumption, has also reduced depickling operating cost.
S300: charcoal absorption heavy metal is with dioxin pollutant
According to a particular embodiment of the invention, to spray into active carbon in the incineration flue gas of discharging from recirculating fluidized bed so as the heavy metal in absorption incineration flue gas (if the) such as mercury, lead, cadmium are with dioxin pollutant.
S400: filter flying dust
Incineration flue gas after utilizing sack cleaner to adsorption treatment carries out dust removal by filtration processing.Not only can filter out flying dust thus, can also filter out absorption has heavy metal with the active carbon of dioxin pollutant.Can remove thus flying dust, heavy metal He dioxin pollutant in incineration flue gas.And then purity and the contaminant removal efficiency of raising incineration flue gas.
S500: remove sour gas, solid particle and heavy metal
Utilize alkali lye spray scrubber to wash the incineration flue gas of processing through described dust removal by filtration, to remove sour gas, solid particle and heavy metal.Can further to incineration flue gas, purify thus.
According to a particular embodiment of the invention, the method for above-mentioned processing incineration flue gas can further include: utilize waste heat boiler in advance the incineration flue gas passing in quench tower to be carried out to waste heat recovery.Can further improve treatment effeciency and heat utilization ratio thus, avoid energy waste.
S600: except water smoke, absorbing acid gases, heavy metal particles and dioxin pollutant
As shown in Figure 4, according to another specific embodiment of the present invention, the method of above-mentioned processing incineration flue gas can further include: utilize demister to remove the water smoke from the incineration flue gas that alkali lye spray scrubber is discharged, further utilize the incineration flue gas that adsorbent equipment absorption discharges from demister sour gas, heavy metal particles with dioxin pollutant.From the incineration flue gas that alkali lye spray scrubber is discharged containing water smoke, saliferous in water smoke, acid gas-containing, containing alkali, containing compositions such as heavy metal particles and ions.Because water smoke easily produces white cigarette, first the method for the processing incineration flue gas of the embodiment of the present invention carries out demist processing by the incineration flue gas that contains a large amount of water smokes after alkali lye spray is processed, remove 50% the water smoke of being not less than in incineration flue gas, to eliminate white cigarette, carry out again afterwards the further absorbing acid gases of adsorption treatment, heavy metal particles He dioxin pollutant.Therefore remove in advance water smoke and can avoid water smoke to form shutoff to the interior adsorbent of adsorbent equipment 80, reduce surface area and the activity of adsorbent, and then improve adsorbent utilization ratio, to further improve the removal efficiency of pollutant in incineration flue gas.
And at present mainly adopt demist, heating, or the mode such as coke absorption is eliminated white cigarette separately.The method of the processing incineration flue gas of the above embodiment of the present invention is combined use by demister 70 is set with adsorbent equipment 80, compared with " demister+heater " in correlation technique, there is the white cigarette effect that disappears more stable, more energy-conservation (not needing to heat again), the advantage of minimizing Air Pollutant Emission total amount; Same demister 70 is combined with adsorbent equipment 80 and is used " coke absorption separately " process for purifying can effectively prevent that water smoke from can form shutoff to adsorbent, reduces adsorbent specific area and activity and can reduce adsorbent consumption, the advantage such as reduces costs.Therefore the system of the processing incineration flue gas of the above embodiment of the present invention can improve more than 30% the removal efficiency of atmosphere pollution.
According to a particular embodiment of the invention, adsorbent equipment can adopt the multilayer adsorbent beds of lower resistance.Make thus pollutant removing rate reach 80% high clean-up effect.
According to a particular embodiment of the invention, utilize the temporary stock 90 of flying dust to deposit the dirt mud of readme quench tower 10 and from the flying dust of sack cleaner 30 and the spent sorbents of adsorbent equipment 80.
According to a particular embodiment of the invention, the method for the processing incineration flue gas of above-described embodiment further comprises: by the alkali lye of discharging from demister 70 be back to alkali lye spray scrubber 50, recirculating fluidized bed 20 and quench tower 10 one of at least.Can utilize thus salkali waste to remove sour gas in incineration flue gas and/or reduce the temperature of incineration flue gas, both having saved processing cost, improving again alkali resource utilization.
The method of processing incineration flue gas according to the above embodiment of the present invention goes for processing various incineration flue gas, such as being incineration flue gas of household garbage, industrial waste incineration flue gas, dangerous waste incineration flue gas etc.Process the more complicated incineration flue gas of composition and still can reach stable treatment effect, and can reach national relevant emission standards.
In the present invention, unless otherwise clearly defined and limited, the terms such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or be integral; Can be mechanical connection, can be to be also electrically connected to; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements.For the ordinary skill in the art, can understand as the case may be above-mentioned term concrete meaning in the present invention.
In the description of this description, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present invention or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, to the schematic statement of above-mentioned term not must for be identical embodiment or example.And, the specific features of description, structure, material or feature can one or more embodiment in office or example in suitable mode combination.In addition,, not conflicting in the situation that, those skilled in the art can carry out combination and combination by the feature of the different embodiment that describe in this description or example and different embodiment or example.
Although illustrated and described embodiments of the invention above, be understandable that, above-described embodiment is exemplary, can not be interpreted as limitation of the present invention, and those of ordinary skill in the art can change above-described embodiment within the scope of the invention, modification, replacement and modification.
Claims (10)
1. a system of processing incineration flue gas, is characterized in that, comprising:
Quench tower, described quench tower has tower flue gas import, tower flue gas outlet, low-temperature receiver import and the outlet of dirt mud, and described quench tower is suitable for described incineration flue gas to lower the temperature;
Recirculating fluidized bed, described recirculating fluidized bed has fluidized bed smoke import, fluidized bed smoke outlet, lime import and alkali lye import, described fluidized bed smoke import is connected with described tower flue gas outlet, lime import and alkali lye import are suitable for spraying into respectively lime and alkali lye, to remove the sour gas in described incineration flue gas;
Sack cleaner, described sack cleaner has deduster gas approach, described deduster exhanst gas outlet and flying dust outlet, described deduster gas approach is connected with described fluidized bed smoke outlet, and the incineration flue gas that described sack cleaner is suitable for discharging from described recirculating fluidized bed carries out dust removal by filtration processing;
Active carbon adding apparatus, described active carbon jetting device is arranged between described recirculating fluidized bed and described sack cleaner, and described active carbon adding apparatus is suitable for spraying into active carbon in described recirculating fluidized bed to adsorb heavy metal in described incineration flue gas with dioxin pollutant to the incineration flue gas of discharging;
Alkali lye spray scrubber, described alkali lye spray scrubber has scrubbing tower gas approach, scrubbing tower exhanst gas outlet and alkali lye import, described scrubbing tower gas approach is connected with described deduster exhanst gas outlet, and described alkali lye spray scrubber is suitable for removing sour gas, solid particle and the heavy metal the incineration flue gas of discharging from described sack cleaner.
2. system according to claim 1, is characterized in that, further comprises:
Waste heat boiler, described waste heat boiler is connected with described quench tower and is suitable for reclaiming the heat of described incineration flue gas.
3. system according to claim 1, is characterized in that, further comprises:
Demister, described demister has demist gas approach, demist exhanst gas outlet and spent lye outlet, and described demist gas approach is connected with scrubbing tower exhanst gas outlet, and described demister is suitable for removing water smoke;
Adsorbent equipment, described adsorbent equipment has absorption gas approach and purifying smoke outlet and spent sorbents outlet, described absorption gas approach is connected with described demist exhanst gas outlet, and described adsorbent equipment is suitable for absorbing acid gases, heavy metal particles He dioxin pollutant.
4. system according to claim 3, is characterized in that, described adsorbent equipment is multilayer adsorbent beds.
5. system according to claim 3, is characterized in that, further comprises:
Flying dust temporary library, the flying dust outlet of the dirt mud outlet of described flying dust temporary library and described quench tower, described sack cleaner and the spent sorbents outlet of described adsorbent equipment are connected, so as to deposit dirt mud from described quench tower, from the flying dust of described sack cleaner and from the spent sorbents of adsorbent equipment.
6. system according to claim 3, it is characterized in that, one of being at least connected of the alkali lye import of the outlet of described spent lye and the low-temperature receiver import of described quench tower, the alkali lye import of described alkali lye spray scrubber and described recirculating fluidized bed, so as by the alkali lye from described demister discharge be back to described alkali lye spray scrubber, described recirculating fluidized bed and described quench tower one of at least.
7. utilize the system of the processing incineration flue gas described in claim 1 to process a method for incineration flue gas, it is characterized in that, comprising:
Incineration flue gas is passed into described quench tower, to the temperature of described incineration flue gas is down to 200～250 degrees Celsius;
Incineration flue gas after described cooling is delivered in the described recirculating fluidized bed being connected with described quench tower, to utilize from described lime import and alkali lye import to spray into respectively lime and alkali lye is removed the sour gas described incineration flue gas;
To spray into active carbon in the incineration flue gas of discharging from described recirculating fluidized bed to adsorb heavy metal in described incineration flue gas with dioxin pollutant;
Incineration flue gas after utilizing sack cleaner to adsorption treatment carries out dust removal by filtration processing;
Utilize alkali lye spray scrubber to wash the incineration flue gas of processing through described dust removal by filtration, to remove sour gas, solid particle and heavy metal.
8. method according to claim 7, is characterized in that, further comprises:
Utilize waste heat boiler in advance the described incineration flue gas passing in described quench tower to be carried out to waste heat recovery.
9. method according to claim 8, is characterized in that, further comprises:
Utilize demister to remove the water smoke the incineration flue gas of discharging from described alkali lye spray scrubber;
Utilize the incineration flue gas that adsorbent equipment absorption discharges from described demister sour gas, heavy metal particles with dioxin pollutant; And
Utilize flying dust temporary library deposit dirt mud from described quench tower, from the flying dust of described sack cleaner and from the spent sorbents of adsorbent equipment.
10. method according to claim 9, is characterized in that, further comprises:
By the alkali lye of discharging from described demister be back to described alkali lye spray scrubber, described recirculating fluidized bed and described quench tower one of at least, to remove the sour gas in described incineration flue gas and/or reduce the temperature of described incineration flue gas.
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| CN201410246610.XA CN103990364A (en) | 2014-03-02 | 2014-06-05 | Incineration flue gas treatment system and incineration flue gas treatment method |
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| CN201420134277 | 2014-03-24 | ||
| CN201410246610.XA CN103990364A (en) | 2014-03-02 | 2014-06-05 | Incineration flue gas treatment system and incineration flue gas treatment method |
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| CN201410246610.XA Pending CN103990364A (en) | 2014-03-02 | 2014-06-05 | Incineration flue gas treatment system and incineration flue gas treatment method |
| CN201420297025.8U Expired - Lifetime CN203899430U (en) | 2014-03-02 | 2014-06-05 | System for processing incinerating gas |
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| CN201420297025.8U Expired - Lifetime CN203899430U (en) | 2014-03-02 | 2014-06-05 | System for processing incinerating gas |
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Cited By (8)
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| CN104307295A (en) * | 2014-11-12 | 2015-01-28 | 湖南玉道环保科技有限公司 | Waste incineration tail gas treatment method |
| CN104324590A (en) * | 2014-10-17 | 2015-02-04 | 安徽盛运环保工程有限公司 | Comprehensive absorption and deacidification system for dangerous and medical waste incineration flue gas |
| CN105169914A (en) * | 2015-08-18 | 2015-12-23 | 中国瑞林工程技术有限公司 | Purifying apparatus and purifying method for treating incineration flue gas |
| CN105727710A (en) * | 2016-03-02 | 2016-07-06 | 郭燕蕾 | Industrial lampblack treatment device |
| CN105771576A (en) * | 2016-03-24 | 2016-07-20 | 宁波德纳希环保科技有限公司 | Process of utilizing modified activated carbon to remove dioxin |
| CN107115782A (en) * | 2017-06-27 | 2017-09-01 | 洛阳龙门药业有限公司 | A kind of pharmaceutical factory fume treatment auxiliary |
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| CN110448992A (en) * | 2019-08-16 | 2019-11-15 | 上海交通大学 | Dioxins in flue gas emission-reducing system and method in a kind of Refuse Incineration Process |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103990364A (en) * | 2014-03-02 | 2014-08-20 | 中国瑞林工程技术有限公司 | Incineration flue gas treatment system and incineration flue gas treatment method |
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| CN104324590A (en) * | 2014-10-17 | 2015-02-04 | 安徽盛运环保工程有限公司 | Comprehensive absorption and deacidification system for dangerous and medical waste incineration flue gas |
| CN104307295A (en) * | 2014-11-12 | 2015-01-28 | 湖南玉道环保科技有限公司 | Waste incineration tail gas treatment method |
| CN105169914A (en) * | 2015-08-18 | 2015-12-23 | 中国瑞林工程技术有限公司 | Purifying apparatus and purifying method for treating incineration flue gas |
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| CN108568195A (en) * | 2018-05-28 | 2018-09-25 | 上海聚焓能源科技有限公司 | A kind of flue gas of refuse burning ultrapurification disappears white imperial system and method |
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| CN110448992A (en) * | 2019-08-16 | 2019-11-15 | 上海交通大学 | Dioxins in flue gas emission-reducing system and method in a kind of Refuse Incineration Process |
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