CN107261824A - A kind of VOCs off-gas cleaning equipments and system - Google Patents
A kind of VOCs off-gas cleaning equipments and system Download PDFInfo
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- CN107261824A CN107261824A CN201710630602.9A CN201710630602A CN107261824A CN 107261824 A CN107261824 A CN 107261824A CN 201710630602 A CN201710630602 A CN 201710630602A CN 107261824 A CN107261824 A CN 107261824A
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- 239000012855 volatile organic compound Substances 0.000 title claims abstract description 57
- 238000004140 cleaning Methods 0.000 title claims abstract description 41
- 239000007800 oxidant agent Substances 0.000 claims abstract description 63
- 230000001590 oxidative effect Effects 0.000 claims abstract description 61
- 239000007789 gas Substances 0.000 claims abstract description 54
- 239000002912 waste gas Substances 0.000 claims abstract description 24
- 239000000945 filler Substances 0.000 claims description 20
- 238000009826 distribution Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 10
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 8
- 239000012798 spherical particle Substances 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 6
- 239000000920 calcium hydroxide Substances 0.000 claims description 6
- 229910001861 calcium hydroxide Inorganic materials 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 5
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical group OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims description 4
- 239000002245 particle Substances 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 claims 2
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000004887 air purification Methods 0.000 abstract description 2
- 238000000746 purification Methods 0.000 abstract description 2
- 230000008929 regeneration Effects 0.000 abstract description 2
- 238000011069 regeneration method Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 9
- 238000000034 method Methods 0.000 description 8
- 230000003647 oxidation Effects 0.000 description 8
- 238000007254 oxidation reaction Methods 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 6
- 238000013329 compounding Methods 0.000 description 6
- 239000000243 solution Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- -1 hydroxyl radical free radical Chemical class 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical group O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 2
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 2
- 230000003197 catalytic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 229910052731 fluorine Inorganic materials 0.000 description 2
- 239000011737 fluorine Substances 0.000 description 2
- HYBBIBNJHNGZAN-UHFFFAOYSA-N furfural Chemical compound O=CC1=CC=CO1 HYBBIBNJHNGZAN-UHFFFAOYSA-N 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000010815 organic waste Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000008096 xylene Substances 0.000 description 1
Classifications
-
- 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
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The present invention relates to technical field of air purification, in particular to a kind of VOCs off-gas cleaning equipments and system.The main body of the equipment is tank body, and the tank body top is provided with air outlet, oxidant inlet, and the tank body lower part is provided with air inlet and delivery port；The oxidant inlet is connected with the shower tray of tank interior；The tank interior is additionally provided with Support tray, and the Support tray is arranged at the top of the air inlet；The air outlet is arranged at the top tank skin of the tank body, or at the top of the tank body.The equipment is low with operating cost available for the processing of VOCs waste gas purifications, it is not necessary to regeneration and the advantage changed repeatedly.
Description
Technical field
The present invention relates to technical field of air purification, in particular to a kind of VOCs off-gas cleaning equipments and system.
Background technology
Atmosphere pollution is one of China's presently the most prominent environmental problem.Wherein, industrial volatile organic matter
(Volatile Organic Compounds, VOCs) is one of main source of atmosphere pollution.A large amount of chemical engineering industry VOCs
Waste gas is discharged into air, necessarily declines atmosphere quality, and is seriously endangered to mankind's health care belt, to national economy causes huge
Big loss.
VOCs waste gas mainly includes following several：1. formaldehyde organic exhaust gas；2. the benzene homologues such as benzene,toluene,xylene are organic
Waste gas；3. styrene, acrylic acid VOCs treatment；4. acetic acid, ethyl ester exhaust-gas treatment；5. acetone, butanone organic exhaust gas；6. oil
Mist VOCs treatment；7. furfural VOCs treatment；8. resin VOCs treatment；9. additive VOCs treatment；10.
Coating cloud VOCs treatment；11. Tianna solution organic exhaust gas；12. the organic exhaust gas such as hydrocarbon oxygen element.
The administering method of the waste gas of VOCs containing low concentration will be according to the property of gas, treating capacity, local ring when alternatively
Depending on the concrete condition such as border hygienic requirements and economic conditions.Absorption method in organic exhaust gas is primarily adapted for use in low concentration, high flux
Organic exhaust gas.At this stage, the processing method of this organic exhaust gas is quite ripe, can thoroughly purify harmful organic exhaust gas.
But this method, there is also certain defect, the equipment volume that it needs is huger, and technological process is more complicated；If
There are a large amount of impurity in waste gas, be then easily caused staff's poisoning.So, the key for handling waste gas using the method is to adsorb
Agent.Currently, organic exhaust gas is handled using absorption method, uses activated carbon more, it is relatively good to be primarily due to activated carbon pore structure, inhaled
Attached property is stronger.But due to the characteristics of activated carbon is non-renewable, it is necessary to regularly replace activated carbon, if typically changed using enterprise
The problem of discharge waste gas is exceeded is had not in time, and active carbon absorption technology is not approved by environmental administration of government at this stage.
In view of this, it is special to propose the present invention.
The content of the invention
It is an object of the invention to provide a kind of VOCs off-gas cleaning equipments and system, to solve the above problems.
In order to realize the above-mentioned purpose of the present invention, spy uses following technical scheme：
According to an aspect of the present invention, the present invention relates to a kind of VOCs off-gas cleaning equipments, the main body of the equipment is tank
Body, the tank body top is provided with air outlet, oxidant inlet, and the tank body lower part is provided with air inlet and delivery port；
The oxidant inlet is connected with the shower tray of tank interior；
The tank interior is additionally provided with Support tray, and the Support tray is arranged at the top of the air inlet；
The air outlet is arranged at the top tank skin of the tank body, or at the top of the tank body.
The invention further relates to a kind of VOCs waste gas cleaning systems, the VOCs waste gas cleaning systems include as described above
VOCs off-gas cleaning equipments and oxidant circulating tank；
The liquid outlet of the oxidant circulating tank is connected with the oxidant inlet.
The present invention by air-introduced machine it is pending pollute air be transported in the VOCs off-gas cleaning equipments, by with
The filler of catalysed oxidn coordinates the application of oxidant to reach efficient oxidation VOCs waste gas, finally with nontoxic gas
(mainly based on carbon dioxide) form is discharged.Tank body equipment is made up of Support tray and shower tray, the packed height control of filler
In below 400mm, shower tray spray oxidant liquor strength control, can be according to the concentration of the pollutant not people having the same aspiration and interest 0.2~0.5%
Whole liquor strength.Filler in the VOCs off-gas cleaning equipments is the composite with catalysis oxidation function, assisted oxidation
The addition of agent decoction can produce hydroxyl radical free radical, and this free radical has extremely strong oxidisability can be the direct oxygen of VOC
Change and decompose, filler plays a part of catalyst and oxidant, the oxidation effectiveness of maximum oxidation agent, therefore can ensure
The permanently effective operation of filler, is not in the loss of filler, can ensure the harmful of waste gas outlet in effective service life
The stability of gas residue is low with operating cost, it is not necessary to regeneration and the advantage changed repeatedly.
Brief description of the drawings
, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, in describing below
Accompanying drawing is some embodiments of the present invention, for those of ordinary skill in the art, before creative work is not paid
Put, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the tank design schematic diagram of VOCs off-gas cleaning equipments provided by the present invention；
Fig. 2 is VOCs waste gas cleaning systems schematic diagram provided by the present invention；
Fig. 3 is the more detailed schematic diagram of VOCs waste gas cleaning systems provided by the present invention；
Fig. 4 is outlet pipe and the gas distribution pipe structural representation of Support tray in VOCs off-gas cleaning equipments provided by the present invention
Figure.
Reference：
VOCs off-gas cleaning equipments -1；
Air outlet -1-1；Oxidant inlet -1-2；Air inlet -1-3；Delivery port -1-4；Shower tray -1-5；Support tray -1-
6；Manhole -1-7；Packing layer -1-8；
Oxidant circulating tank -2；
Oxidant circulating pump -3；
Flowmeter -4；
Air-introduced machine -5；
Oxidant compounding bin -6；
Dosing measuring pump -7；
Overflow pipe -8；
Overflow valve -9；
Frequency converter -10.
Embodiment
Technical scheme is clearly and completely described below in conjunction with the drawings and specific embodiments, but
Be it will be understood to those of skill in the art that following described embodiment is a part of embodiment of the invention, it is rather than whole
Embodiment, is merely to illustrate the present invention, and is not construed as limiting the scope of the present invention.Based on the embodiment in the present invention, ability
The every other embodiment that domain those of ordinary skill is obtained under the premise of creative work is not made, belongs to guarantor of the present invention
The scope of shield.Unreceipted actual conditions person in embodiment, the condition advised according to normal condition or manufacturer is carried out.Agents useful for same
Or the unreceipted production firm person of instrument, it is the conventional products that can be obtained by commercially available purchase.
In the description of the invention, it is necessary to explanation, term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instruction such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Be easy to the description present invention and simplify description, rather than indicate or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" the 3rd " is only used for describing purpose, and it is not intended that indicating or implying relative importance.
In the description of the invention, it is necessary to illustrate, unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in invention.
The present invention relates to a kind of VOCs off-gas cleaning equipments, as shown in figure 1, the main body of the equipment is tank body, the tank
Body top is provided with air outlet -1-1, oxidant inlet -1-2, and the tank body lower part is provided with air inlet -1-3 and delivery port -1-
4；
Oxidant inlet-the 1-2 is connected with the shower tray -1-5 of tank interior；
The tank interior is additionally provided with Support tray -1-6, and the Support tray -1-6 is arranged at the air inlet -1-3's
Top.
It is preferred that, the shower tray -1-5 includes water distributor and spray nozzle.
It is preferred that, the tank base is additionally provided with water-locator；
Water-locator is used for the collection of tank base and makes it easier to flow out tank body.
It is preferred that, the air outlet -1-1 is arranged at the top tank skin of the tank body, or at the top of the tank body.
It is preferred that, the tank body is cylinder or cube；
It is preferred that, the top and/or bottom of the tank body are the spherical cap shape of evagination；
It is preferred that, the air outlet -1-1 is arranged at the center covered on the spherical tank shape of top；It is furthermore preferred that the water outlet
Mouth -1-4 is arranged at the center of bottom spherical tank shape lower cover；
It is furthermore preferred that the height of the cylinder is equal with bottom surface circular diameter.
It is preferred that, VOCs off-gas cleaning equipments as described above are provided with gas distribution pipe and water outlet on the Support tray -1-6
Manage, and outlet pipe is not shared with gas distribution pipe；
It is furthermore preferred that the outlet pipe and gas distribution pipe are provided with multiple outlets, and the outlet be uniformly distributed in it is described
On Support tray -1-6；It is furthermore preferred that the outlet of the outlet pipe and gas distribution pipe is spaced in the support panel surface.
As shown in figure 4, being provided with single gas distribution pipe and outlet pipe on Support tray -1-6, gas distribution pipe and outlet pipe can have
One or more, this design can play a part of uniform gas distribution, and two groups of pipelines are separately just easy to ventilation, and simultaneously can be suitable
Sharp is collected into oxidizing agent solution, and air inlet is not interfere with each other with going out liquid, increases purification efficiency.
It is preferred that, VOCs off-gas cleaning equipments as described above, the Support tray -1-6 bottoms are provided with supporting construction；
It is furthermore preferred that the supporting construction be circular array be distributed triangle plate rack, one side of the triangular plate with
Inner tank wall is connected, and another side is connected with the support tray bottom；
Because Support tray -1-6 is loaded with catalytic filler, moisture, therefore Support tray -1-6 can be also filled when equipment is operated
Need sufficiently large mechanical strength.
It is preferred that, VOCs off-gas cleaning equipments as described above are additionally provided with manhole -1-7 on the tank skin of the tank body；
Manhole -1-7 effect is that people can enter equipment assembling is done inside tank body, is safeguarded or supplement changes filler.
It is preferred that, VOCs off-gas cleaning equipments as described above are provided with packing layer -1-8 on the Support tray；
It is preferred that, the tank body is the high cylinder equal with bottom surface circular diameter, described filler layer -1-8 height≤institute
State tank body it is high 1/6；It is furthermore preferred that in terms of a height of 3000mm of the tank body, described filler layer -1-8 height≤500mm, more
It is preferred that ,≤400mm, more preferably 300mm~350mm；Packing layer -1-8 height is controlled mainly for reduction energy consumption；
It is preferred that, being filled with described filler layer -1-8 has manganese bioxide coated spherical particle；It is furthermore preferred that described
The particle for granularity 0.6mm~1.4mm of spherical particle；More preferably granularity 0.8mm~1.2mm particle, can also be selected
Select 1.0mm；
It is furthermore preferred that the interior nuclear composition of the spherical particle is mainly made up of zeolite and calcium hydroxide；It is furthermore preferred that the ball
Shape particle is mainly made up of following component：The parts by weight of zeolite 85~90, the parts by weight of manganese dioxide 9.5~15 and calcium hydroxide 0~5
Parts by weight；The more preferably parts by weight of zeolite 85, the parts by weight of manganese dioxide 10 and the parts by weight of calcium hydroxide 5.
In order to reach more preferable clean-up effect, the composition and physical property of filler are preferably as shown in Table 1 and Table 2.
The filler composition of table 1
| Mixture | Standard content | Specification |
| Natural zeolite | 85% | ＞ 85% |
| Manganese dioxide | 10% | ＞ 9.5% |
| Calcium hydroxide | 5% | ＜ 5% |
The filler physical property of table 2
The invention further relates to a kind of VOCs waste gas cleaning systems, as shown in Fig. 2 the VOCs waste gas cleaning systems are included such as
Upper described VOCs off-gas cleaning equipments -1 and oxidant circulating tank -2；
The liquid outlet of the oxidant circulating tank -2 is connected with the oxidant inlet -1-2.
As shown in Figure 3, it is preferred that between the liquid outlet of the oxidant circulating tank -2 and the oxidant inlet -1-2 also
It is provided with oxidant circulating pump -3；It is furthermore preferred that also being set between the oxidant circulating pump -3 and the oxidant inlet -1-2
It is equipped with flowmeter -4, more preferably suspended body flowmeter；
It is preferred that, the VOCs waste gas cleaning systems also include air-introduced machine -5, the air-introduced machine -5 and the air inlet -1-
3 are connected.
Air-introduced machine -5 and oxidant circulating pump -3 can farthest drop according to regulation air quantity and amount of liquid medicine the need for production
Low energy consumption, saves entreprise cost expenditure,
It is preferred that, in order to reduce cost, manpower is saved, decoction, the delivery port -1-4 and the oxidant is recycled
First inlet of circulating tank -2 is connected, so that by reacted decoction recycling.
In order to more easily adjust the liquor strength in circulating tank -2, and the supplementing solvent into circulating tank -2 at any time,
It is preferred that, the VOCs waste gas cleaning systems also include oxidant compounding bin -6, and the outlet of the oxidant compounding bin -6 with
Second inlet of the oxidant circulating tank -2 is connected；
The inlet of the oxidant compounding bin -6 also has solvent injection pipe to be connected.
It is preferred that, in order to preferably quantitatively control solvent adding amount, outlet and the oxygen of the oxidant compounding bin -6
Dosing measuring pump -7 is additionally provided between second inlet of agent circulating tank -2；
It is preferred that, it is also associated with overflow pipe -8 between the oxidant compounding bin -6 and the oxidant circulating tank -2；More
It is preferred that, it is additionally provided with overflow valve -9 on the overflow pipe -8；
Overflow pipe -8 and overflow valve -9 can efficiently control the amount of liquid of circulating tank -2, and exclude surplus liquid.
In order to preferably adjust the injection rate of control oxidant, it is preferred that the oxidant circulating pump -3 and frequency conversion
Device -10 is connected.
It is preferred that, VOCs waste gas cleaning systems as described above are filled with oxidant in the oxidant circulating tank -2；
It is furthermore preferred that the oxidant is hydrogen peroxide solution；
It is furthermore preferred that the hydrogen peroxide solution；
It is furthermore preferred that the concentration when the oxidant is sprayed by the shower tray is 0.2%~0.5%.
The parameter of oxidizing agent solution is preferably as shown in table 3：
Table 3 aoxidizes agent parameter
| Bulk density | 0.8-1.05g/cm3 |
| Active oxidizer | 17% |
| Water content | 20% (maximum) |
| PH value (3% solution) | About 10.2 |
| Contain | Stabilizer |
The sharpest edges of filler provided by the present invention are manganese bioxide coated (10%) that there is high concentration on its surface, in oxygen
In the adding procedure of agent, it can speed up the catalytic oxidation carried out in dielectric surface.Oxidant decoction is urged filler
Change effect is lower to produce hydroxyl radical free radical, can be considered that hydroxyl loses an electronics, and hydroxyl radical free radical has extremely strong electronic energy
I.e. power oxidability, oxidizing potential 2.8eV.It is the oxidant that fluorine is only second in nature, under this oxidation-reduction potential
VOC can be oxidized to carbon dioxide and water, and the application final product of this oxidation technology does not have drawing for other elements
Enter, hydroxyl radical free radical finally occurs that the harmful components such as chlorine, fluorine, heavy metal, ozone will not be introduced in the form of water, with great
Environment-friendly advantage.
When VOCs cleaning systems provided by the present invention are run, VOCs waste gas by air-introduced machine -5 be delivered to Support tray -
1-6, after Support tray -1-6 is uniformly distributed out waste gas, through packing layer -1-8, after voloxidation organic matter, passes through air-out
Mouth -1-1 drains, the pipeline for allowing oxidant to flow out for also having another set independence above Support tray.Conveyed starting air-introduced machine -5
Start oxidant circulating pump -3 while waste gas and adjust flow according to exhaust emission concentration, oxidant is equal by shower tray -1-5
Even spray is on filler, and oxidant medicament Liquid Residue can reenter the circulation of oxidant circulating tank -2 by lower Support tray -1-6 to be made
With.The design of this technique can reach the oxidation effectiveness of splendid volatile organic waste gas.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, but it will be understood by those within the art that：Its
The technical scheme described in foregoing embodiments can still be modified, or to which part or all technical characteristic
Carry out equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention skill
The scope of art scheme.
Claims (10)
1. a kind of VOCs off-gas cleaning equipments, it is characterised in that the main body of the equipment is tank body, and the tank body top is provided with
Air outlet, oxidant inlet, the tank body lower part are provided with air inlet and delivery port；
The oxidant inlet is connected with the shower tray of tank interior；
The tank interior is additionally provided with Support tray, and the Support tray is arranged at the top of the air inlet；
The air outlet is arranged at the top tank skin of the tank body, or at the top of the tank body.
2. VOCs off-gas cleaning equipments according to claim 1, it is characterised in that be provided with gas distribution pipe on the Support tray
And outlet pipe, and outlet pipe do not share with gas distribution pipe；
It is preferred that, the outlet pipe is provided with multiple outlets with gas distribution pipe, and the outlet is uniformly distributed in the Support tray
On；It is furthermore preferred that the outlet of the outlet pipe and gas distribution pipe is spaced in the support panel surface.
3. VOCs off-gas cleaning equipments according to claim 1, it is characterised in that the support tray bottom is provided with support
Structure.
4. VOCs off-gas cleaning equipments according to claim 3, it is characterised in that the supporting construction is circular array
The triangle plate rack of distribution, one side of the triangular plate is connected with inner tank wall, and another side is connected with the support tray bottom.
5. VOCs off-gas cleaning equipments according to claim 1, it is characterised in that be additionally provided with the tank skin of the tank body
Manhole.
6. VOCs off-gas cleaning equipments according to claim 1, it is characterised in that be provided with filler on the Support tray
Layer.
7. VOCs off-gas cleaning equipments according to claim 6, it is characterised in that the tank body is high and bottom surface circular diameter
Equal cylinder, height≤tank body of described filler layer it is high 1/6.
8. VOCs off-gas cleaning equipments according to claim 6, it is characterised in that being filled with described filler layer has two
The spherical particle of Coated With Manganese Oxide；
It is preferred that, the particle for granularity 0.6mm~1.4mm of the spherical particle.
9. VOCs off-gas cleaning equipments according to claim 8, it is characterised in that the interior nuclear composition master of the spherical particle
To be made up of zeolite and calcium hydroxide；
It is preferred that, the spherical particle is mainly made up of following component：The parts by weight of zeolite 85~90, the weight of manganese dioxide 9.5~15
Measure part and the parts by weight of calcium hydroxide 0~5.
10. a kind of VOCs waste gas cleaning systems, it is characterised in that the VOCs waste gas cleaning systems include claim 1~9 times
VOCs off-gas cleaning equipments and oxidant circulating tank described in one；
The liquid outlet of the oxidant circulating tank is connected with the oxidant inlet；
It is preferred that, it is additionally provided with oxidant circulating pump between the liquid outlet and the oxidant inlet of the oxidant circulating tank；
It is furthermore preferred that the oxidant circulating pump is connected with frequency converter；
It is preferred that, the VOCs waste gas cleaning systems also include air-introduced machine, and the air-introduced machine is connected with the air inlet；
It is preferred that, the delivery port is connected with the first inlet of the oxidant circulating tank；
It is preferred that, oxidant is filled with the oxidant circulating tank；It is furthermore preferred that the oxidant is hydrogen peroxide solution；More
It is preferred that, the hydrogen peroxide solution；It is furthermore preferred that the concentration when the oxidant is sprayed by the shower tray is
0.2%~0.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630602.9A CN107261824A (en) | 2017-07-28 | 2017-07-28 | A kind of VOCs off-gas cleaning equipments and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710630602.9A CN107261824A (en) | 2017-07-28 | 2017-07-28 | A kind of VOCs off-gas cleaning equipments and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107261824A true CN107261824A (en) | 2017-10-20 |
Family
ID=60075801
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710630602.9A Pending CN107261824A (en) | 2017-07-28 | 2017-07-28 | A kind of VOCs off-gas cleaning equipments and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4018137A1 (en) * | 1990-06-06 | 1991-12-12 | Linde Ag | Compact tray assembly for distn. column - incorporating gas distributor, droplet coalescer, and drain channel |
| JPH0938470A (en) * | 1995-07-25 | 1997-02-10 | Hitachi Ltd | Filter |
| CN105126534A (en) * | 2015-08-03 | 2015-12-09 | 邓杰帆 | Waste gas processing device and waste gas processing method |
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Application publication date: 20171020 |