CN208212807U - Thermal desorption tail gas multi-stage filtration systems - Google Patents
Thermal desorption tail gas multi-stage filtration systems Download PDFInfo
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- CN208212807U CN208212807U CN201820317834.9U CN201820317834U CN208212807U CN 208212807 U CN208212807 U CN 208212807U CN 201820317834 U CN201820317834 U CN 201820317834U CN 208212807 U CN208212807 U CN 208212807U
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- thermal desorption
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- activated carbon
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- 238000003795 desorption Methods 0.000 title claims abstract description 26
- 238000001914 filtration Methods 0.000 title claims abstract description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 55
- 239000000428 dust Substances 0.000 claims abstract description 34
- 238000002485 combustion reaction Methods 0.000 claims abstract description 31
- 238000009833 condensation Methods 0.000 claims abstract description 27
- 230000005494 condensation Effects 0.000 claims abstract description 27
- 238000001179 sorption measurement Methods 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 17
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000126 substance Substances 0.000 claims description 12
- 238000006555 catalytic reaction Methods 0.000 claims description 10
- 230000003647 oxidation Effects 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 8
- 238000002347 injection Methods 0.000 claims description 8
- 239000002957 persistent organic pollutant Substances 0.000 claims description 8
- 238000004062 sedimentation Methods 0.000 claims description 8
- 239000000523 sample Substances 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 6
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000002351 wastewater Substances 0.000 claims description 5
- 238000011897 real-time detection Methods 0.000 claims description 3
- 239000010865 sewage Substances 0.000 claims description 3
- 239000006228 supernatant Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 2
- 229920006395 saturated elastomer Polymers 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005336 cracking Methods 0.000 abstract description 13
- 238000000746 purification Methods 0.000 abstract description 11
- 238000000151 deposition Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 52
- 238000000034 method Methods 0.000 description 15
- 239000002689 soil Substances 0.000 description 8
- 239000003344 environmental pollutant Substances 0.000 description 7
- 231100000719 pollutant Toxicity 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000000470 constituent Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003993 organochlorine pesticide Substances 0.000 description 3
- 239000003209 petroleum derivative Substances 0.000 description 3
- 150000003071 polychlorinated biphenyls Chemical class 0.000 description 3
- 239000003802 soil pollutant Substances 0.000 description 3
- 239000000809 air pollutant Substances 0.000 description 2
- 231100001243 air pollutant Toxicity 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
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- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 125000005575 polycyclic aromatic hydrocarbon group Chemical group 0.000 description 2
- 230000001376 precipitating effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 241000208125 Nicotiana Species 0.000 description 1
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- NEHMKBQYUWJMIP-UHFFFAOYSA-N chloromethane Chemical compound ClC NEHMKBQYUWJMIP-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 235000013409 condiments Nutrition 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
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- 238000010586 diagram Methods 0.000 description 1
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- 238000012986 modification Methods 0.000 description 1
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- 229920000642 polymer Polymers 0.000 description 1
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- 230000001105 regulatory effect Effects 0.000 description 1
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- 239000004071 soot Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model discloses a kind of thermal desorption tail gas multi-stage filtration systems, the system includes the combustion chamber being sequentially communicated, condensation chamber, cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system, and the control operating system for the above-mentioned each component of intelligent control, the multi-stage filtration systems overall structure is simple, and carrying out high-temp combustion to tail gas using combustion chamber makes its cracking, then condensation chamber carries out condensation cooling to the tail gas after cracking, next cyclone dust collectors are utilized, bag filter, atomizing dust-removing system and activated carbon adsorption system carry out gradually depositing dust to tail gas, dedusting, it is discharged after up to standard, after multistep treatment, good purification, it is high-efficient.
Description
Technical field
The embodiments of the present invention are related to the field of tail gas treatment, in particular to thermal desorption tail gas multistage purification system
System.
Background technique
Thermal desorption is a kind of widely used technology, it can the property of will volatilize and semi-volatile compounds extract from various matrix
It takes and separates.It can be used as a kind of air monitering technology (indoor and outdoor, workshop, carriage, breathing etc.), can also be with
It is the effective of analysis soil, polymer, packaging material, food, condiment, cosmetics, tobacco, construction material, drug and the consumer goods
Tool.Thermal desorption technology has good adaptability to different organic pollutant categories and concentration, while it is fast to repair speed, the period
It is short, it is especially all kinds of to Polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbon (PAHs), organo-chlorine pesticide (OCPs), benzene homologues, petroleum hydrocarbon etc. to have
Machine pollutant has disposition effect well.
But thermal desorption disposal process can generate a large amount of organic exhaust gas, ingredient complicated composition, and contain a large amount of dust
Particle needs to take measures to control effectively, it is ensured that qualified discharge avoids secondary pollution.Thermal desorption tail gas clean-up skill at present
Art still uses traditional exhaust gas treating method, such as spray-precipitating, activated carbon adsorption, incineration method, however these traditional tails
Gas, which purifies disposing technique, can only generally be directed to specific type pollutant, if spray-precipitation method are only to PCBs class low solubility, density
Organic pollutant than water weight is effective, bad to pollutant removals such as benzene homologues, chloro-carbon solvent dissolutions, gives up after purification
Gas and waste water can not often reach discharge standard.The pollution of different type contaminated site forms ever-changing, same class Pollution Field
Ground also tends to the organic pollutant distinct there are various types, significantly limits the reality of above-mentioned conventional exhaust disposing technique
Therefore border applicability is badly in need of high, ingredient complicated composition characteristics, exploitation according to thermal desorption tail gas dust particle content and is applicable in
The purification process of the thermal desorption tail gas of all kinds of organic pollutants.
Utility model content
The purpose of this utility model is that in view of the above-mentioned drawbacks in the prior art, providing a kind of thermal desorption tail gas Multistage purifying
Change system, system structure is simple, can carry out multistep treatment to all kinds of tail gas that thermal desorption generates, and treatment effeciency is high.
To realize above-mentioned purpose of utility model, the utility model adopts the technical scheme that a kind of thermal desorption tail gas is more
Grade purification system comprising: control operating system, and the combustion chamber that is sequentially communicated, condensation chamber, cyclone dust collectors, cloth bag are removed
Dirt device, atomizing dust-removing system and activated carbon adsorption system.Combustion chamber, cyclone dust collectors, bag filter, is removed condensation chamber by spraying
It is respectively equipped with real-time monitoring sensing device in dirt system, activated carbon adsorption system, and couples with control operating system to realize automatically
Control.
In addition, the utility model also provides following attached technical scheme:
Combustion chamber includes injection nozzle, temperature probe and emergency vent, and combustion chambers level is installed and is coated with fire proofed wood
Material, injection nozzle be combustion chamber input end, thermal desorption generate tail gas combustion chamber is entered by injection nozzle, 800 DEG C~
Burning cracking 1s~3s at a temperature of 1200 DEG C, the indoor temperature of temperature probe real-time detection burning simultaneously feed back to control operation system
System.
Be provided with air-introduced machine between combustion chamber and condensation chamber, the tail gas after combustion chambers burn cracking through the air-introduced machine drain into
Condensation chamber, condensation chamber are used to tail gas being cooled to 300 DEG C~400 DEG C.
Cyclone dust collectors include air inlet pipe, exhaust pipe, cylinder, cone and ash bucket, and air inlet pipe is connected to condensation chamber, into
Gas velocity degree is 18~23m/s, and exhaust pipe is connected to bag filter.
Bag filter includes air inlet pipe, upper box body, middle part cabinet, lower part box, deashing mechanism and ash exhauster, into
Tracheae is connected to the cyclone dust collectors, and upper box body is connected to atomizing dust-removing system, the filtration velocity of the bag filter
For 0.5~2m/s.
Atomizing dust-removing system includes aerosolater, sedimentation basin and chemical oxidation reaction pond, the dirt that aerosolater generates
Water is precipitated by sedimentation basin, and the middle layer liquid that sedimentation basin generates is after filtering for spraying；Supernatant liquid and lower liquid are logical
It crosses after chemical oxidation reaction pond removal Organic Pollutants in Wastewater for spraying.
Activated carbon adsorption system includes activated carbon adsorber, catalysis oxidation room, is provided in activated carbon adsorber for examining
The survey device of activated carbon adsorption saturated conditions is surveyed, catalysis oxidation room is used for the active carbon of catalysis oxidation adsorption saturation.
Compared with the prior art, the advantage of the multi-stage filtration systems of the utility model is: it includes to be sequentially communicated
Combustion chamber, condensation chamber, cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system, and for intelligence
The control operating system of above-mentioned each component is controlled, it can thus be seen that the multi-stage filtration systems overall structure of the utility model is simple,
Carrying out high-temp combustion to tail gas using combustion chamber makes its cracking, and then condensation chamber carries out condensation cooling to the tail gas after cracking, connects
Get off using cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system to tail gas carry out gradually depositing dust,
Dedusting is discharged after up to standard, and after multistep treatment, good purification is high-efficient.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, embodiment or the relevant technologies will be retouched below
Attached drawing needed in stating is briefly described, it should be apparent that, it is practical new that the accompanying drawings in the following description merely relates to this
Some embodiments of type, are not limitation of the utility model.
Fig. 1 is the structural schematic diagram of the multi-stage filtration systems of the utility model preferred embodiment.
Fig. 2 is the process flow chart that multistage purification is carried out using the multi-stage filtration systems of the utility model preferred embodiment.
Specific embodiment
In order to be more clearly understood that the above objects, features, and advantages of the utility model, with reference to the accompanying drawing and have
Body embodiment makees further unrestricted detailed description to technical solutions of the utility model.
As shown in Figure 1, the utility model multi-stage filtration systems include: control operating system 14, and it is sequentially connected logical
Combustion chamber 1, condensation chamber 2, cyclone dust collectors 3, bag filter 4, atomizing dust-removing system 5, activated carbon adsorption system 6.Combustion chamber
1, condensation chamber 2, cyclone dust collectors 3, bag filter 4, atomizing dust-removing system 5, activated carbon adsorption system 6 are respectively equipped with real-time prison
Sensor is controlled, these real-time monitoring sensing devices are coupled respectively with control operating system to realize and automatically control.
Injection nozzle, temperature probe, emergency vent are equipped in combustion chamber 1, combustion chambers level is installed and is coated with fire resisting
Material, the input end of combustion chamber are equipped with injection nozzle, and the tail gas that thermal desorption generates enters combustion chamber by injection nozzle, 800
DEG C~1200 DEG C at a temperature of burning cracking 1s~3s, temperature probe real-time detection burn indoor temperature and feed back to control and
Operating system.
The gas access of condensation chamber 2 is connected with combustion chamber gases discharge outlet, and the tail gas by combustion chamber processing is through air-introduced machine
Drainage enters condensation chamber, is water-cooled to 300 DEG C~400 DEG C through condensation.
Cyclone dust collectors 3 are made of air inlet pipe, exhaust pipe, cylinder, cone and ash bucket, cyclone dust collectors air inlet pipe with
Condensation chamber gas discharge outlet is connected, and is 18~23m/s by the speed that air-introduced machine controls gas access.
Bag filter 4 is by air inlet pipe, upper box body, middle part cabinet, lower part box (ash bucket), soot cleaning system and ash ejector
Structure composition, bag filter air inlet pipe are connected with the gas discharge outlet of cyclone dust collectors, control the filtration velocity of bag filter
For 0.5~2m/s.
Atomizing dust-removing system 5 includes aerosolater 9, sedimentation basin 11, chemical oxidation reaction pond 12, and aerosolater 9 produces
Raw sewage is precipitated in sedimentation basin 11, and the middle layer liquid after precipitating directly serves as the liquid for spray after filtering；Upper liquid
Body and lower liquid are used to spray after removing Organic Pollutants in Wastewater by chemical oxidation reaction pond 12.
Activated carbon adsorption system 6 includes activated carbon adsorber 10, catalysis oxidation room 13, is equipped in adsorption tower and surveys device, detection
The adsorption saturation situation of active carbon, the active carbon of adsorption saturation enter catalysis oxidation room 13, are carried out by the method for catalysis oxidation
Regeneration.
See Fig. 2, multistage purification method the following steps are included:
(1) tail gas that thermal desorption generates, the drainage through air-introduced machine enters combustion chamber, in 800 DEG C~1200 DEG C of temperature
The lower burning cracking 1s~3s of degree；
(2) enter condensation chamber through step (1) processing tail gas, be water-cooled to 300 DEG C~400 DEG C through condensation；
(3) tail gas through step (2) processing passes through cyclone dust collectors, and the speed of regulating gas entrance is 18~23m/s, removes
Remove 5 μm of partial size > of dust；
(4) through step (3) processing tail gas pass through bag filter, control bag filter filtration velocity be 0.5~
2m/s removes the dust that partial size is 5~0.1 μm；
(5) tail gas handled through step (4) successively passes through atomizing dust-removing system and activated carbon adsorption system, removes partial size <
0.1 μm of dust and other harmful constituents, through 15m smoke stack emission after processing is up to standard；
(6) sewage that atomizing dust-removing system generates in step (5) is by precipitating the middle layer liquid generated after filtering, directly
Connect the liquid served as spray；Supernatant liquid and lower liquid pass through chemical oxidation reaction pond removal Organic Pollutants in Wastewater
For spraying；
(7) active carbon of activated carbon adsorption detection adsorption saturation carries out again by the method for catalysis oxidation in step (5)
It makes profits use.
It is the application example handled using Tthe utility model system and method below:
Case 1: certain chemical industry place organic polluted soil, soil are sandy soil, and soil pollutant is polycyclic aromatic hydrocarbon, organochlorine
Pesticide, petroleum hydrocarbon etc., are handled with thermal desorption processes, and the tail gas of generation enters combustion chamber, are split in 900 DEG C of at a temperature of burning
2s is solved, the tail gas after cracking makes to be cooled to 400 DEG C through condensation, successively passes through cyclone dust collectors, bag filter, spray for dust suppression system
System and activated carbon adsorption system dust and other harmful constituents, dust-extraction unit reaches dust particles removal rate in tail gas after processing
99.9% or more, pollutants removal rate does not have the detection of the substances such as dioxin, purification disposition in 99.9% or more, tail gas in tail gas
Tail gas reaches the discharge standard of GB16297-1996 " discharge standard of air pollutants " afterwards.
Case 2: certain pesticide chemical place organic polluted soil, the soil are clayey soil, soil pollutant six six six, with heat
Separating process is handled, and the tail gas of generation enters combustion chamber, the tail gas in 1200 DEG C of at a temperature of burning cracking 1s, after cracking
Make to be cooled to 400 DEG C through condensation, successively passes through cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system
System dust and other harmful constituents, dust-extraction unit reaches 99.8% or more to dust particles removal rate in tail gas after processing, tail gas
Middle pollutants removal rate does not have the detection of the substances such as dioxin in 99.8% or more, tail gas, and tail gas reaches GB after purification disposition
The discharge standard of 16297-1996 " discharge standard of air pollutants ".
Case 3: certain petrochemical industry place organic polluted soil, soil pollutant is petroleum hydrocarbon, is carried out with thermal desorption processes
Processing, the tail gas of generation enter combustion chamber, and in 1000 DEG C of at a temperature of burning cracking 3s, the tail gas after cracking makes to cool down through condensation
To 350 DEG C, successively by cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system dust and other
Harmful constituent, dust-extraction unit reaches 99.9% or more to dust particles removal rate in tail gas after processing, pollutant removal in tail gas
Rate does not have the detection of the substances such as dioxin in 99.99% or more, tail gas, and it is " big to reach GB 16297-1996 for tail gas after purification disposition
Gas pollutant comprehensive discharge standard " discharge standard.
It should be pointed out that above-mentioned preferred embodiment is only to illustrate the technical ideas and features of the present invention, purpose
It is to enable those skilled in the art to understand the contents of the present invention and implement them accordingly, this reality can not be limited with this
With novel protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in this reality
Within novel protection scope.
Claims (7)
1. a kind of thermal desorption tail gas multi-stage filtration systems, it is characterised in that comprising: operating system is controlled, and be sequentially communicated
Combustion chamber, condensation chamber, cyclone dust collectors, bag filter, atomizing dust-removing system and activated carbon adsorption system.
2. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the combustion chamber includes injection
Nozzle, temperature probe and emergency vent；Thermal desorption tail gas is entered in combustion chamber by injection nozzle；Temperature probe and control are grasped
Make system coupling, for real-time detection burning room temperature and feeds back to control operating system.
3. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the combustion chamber with it is described cold
It is provided with air-introduced machine between solidifying room, treated for combustion chamber, and tail gas is drained through the air-introduced machine into condensation chamber, and condensation chamber is used for tail
Air cooling is to 300 DEG C~400 DEG C.
4. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the cyclone dust collectors include
Air inlet pipe, exhaust pipe, cylinder, cone and ash bucket, air inlet pipe are connected to condensation chamber, and intake velocity is 18~23m/s, exhaust
Pipe is connected to bag filter.
5. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the bag filter includes
Air inlet pipe, upper box body, middle part cabinet, lower part box, deashing mechanism and ash exhauster, air inlet pipe and the cyclone dust collectors connect
Logical, upper box body is connected to atomizing dust-removing system, and the filtration velocity of the bag filter is 0.5~2m/s.
6. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the atomizing dust-removing system packet
Aerosolater, sedimentation basin and chemical oxidation reaction pond are included, the sewage that aerosolater generates is precipitated by sedimentation basin, sedimentation basin
The middle layer liquid of generation is after filtering for spraying；Supernatant liquid and lower liquid pass through chemical oxidation reaction pond removal waste water
For spraying after middle organic pollutant.
7. thermal desorption tail gas multi-stage filtration systems according to claim 1, it is characterised in that: the activated carbon adsorption system
Including activated carbon adsorber, catalysis oxidation room, it is provided in activated carbon adsorber for detecting activated carbon adsorption saturated conditions
Device is surveyed, catalysis oxidation room is used for the active carbon of catalysis oxidation adsorption saturation.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820317834.9U CN208212807U (en) | 2018-03-08 | 2018-03-08 | Thermal desorption tail gas multi-stage filtration systems |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820317834.9U CN208212807U (en) | 2018-03-08 | 2018-03-08 | Thermal desorption tail gas multi-stage filtration systems |
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| Publication Number | Publication Date |
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| CN208212807U true CN208212807U (en) | 2018-12-11 |
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ID=64530926
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295602A (en) * | 2018-03-08 | 2018-07-20 | 广西博世科环保科技股份有限公司 | Thermal desorption tail gas multi-stage filtration systems and method |
| CN111790242A (en) * | 2020-05-27 | 2020-10-20 | 安前前 | Tail gas purification device for thermal desorption of organic contaminated soil |
| CN112675642A (en) * | 2020-12-31 | 2021-04-20 | 江苏天蓝智能装置有限公司 | Ultrasonic tail gas treatment system |
-
2018
- 2018-03-08 CN CN201820317834.9U patent/CN208212807U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108295602A (en) * | 2018-03-08 | 2018-07-20 | 广西博世科环保科技股份有限公司 | Thermal desorption tail gas multi-stage filtration systems and method |
| CN111790242A (en) * | 2020-05-27 | 2020-10-20 | 安前前 | Tail gas purification device for thermal desorption of organic contaminated soil |
| CN112675642A (en) * | 2020-12-31 | 2021-04-20 | 江苏天蓝智能装置有限公司 | Ultrasonic tail gas treatment system |
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