CN204601969U - A kind of odor removal removing high concentration foul gas and VOC waste gas - Google Patents
A kind of odor removal removing high concentration foul gas and VOC waste gas Download PDFInfo
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- CN204601969U CN204601969U CN201520215993.4U CN201520215993U CN204601969U CN 204601969 U CN204601969 U CN 204601969U CN 201520215993 U CN201520215993 U CN 201520215993U CN 204601969 U CN204601969 U CN 204601969U
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Abstract
The utility model discloses a kind of odor removal removing high concentration foul gas and VOC waste gas, it comprises the vacuum-ultraviolet light reative cell that connects in turn and carbon manganese loads in mixture filter tower; Wherein, described vacuum-ultraviolet light reative cell is one or more parallel connection, it comprise a reaction inner chamber and with the air inlet of this reaction inner space and air outlet, described air inlet is connected with air feed end; Described carbon manganese loads in mixture filter tower and comprises a tower body and the filter tower import that is communicated with this tower body and filter tower export, and described filter tower outlet is communicated with discharge end, and described air outlet is connected with filter tower import.The wavelength of the VUV lamp group of wherein said VUV reative cell is 185nm, or is 185nm and 254nm combination, and form an intensive effective ultraviolet region, this reative cell provides 3 ~ 4 seconds enough reaction time, makes stench organic gas at reaction inner chamber rapid oxidation.Being no matter the foul gas of high concentration or low concentration, when entering light incidence section, being irradiated and by Quick Oxidation, avoid gas to escape and escape or short circuit, effective clearance can reach 99% comprehensively.
Description
Technical field
The utility model relates to a kind of odor removal, particularly, relates to a kind of odor removal removing high concentration foul gas and VOC waste gas.
Background technology
Produce at photoelectricity and semicon industry, have employed a large amount of chemicals as cleaning agent, remover etc., these chemical agents, in the biochemical process of waste water, can produce stench in a large number.As: methyl mercaptan, methyl sulfide, trimethylamine etc., the concentration of these stinks has up to more than 100ppm.In this case, general photocatalysis, biological filter and scrubbing tower, all could not effectively remove relevant stink, and impact the life of the resident of factory's periphery.For these high concentration stenches, and existing treatment technology also could not effectively be removed.
Existing process foul smell method mainly contains: O
3, O
3/ UV, O
3/ VUV, UVA+ catalyst, UV+NaOCl, UV+H
2o
2, one or more mixed methods in biochemical deodorizing.Prior art major part is as H for inorganic foul smell
2s and NH
3, research and the processing method of organic foul smell are less, just less to the organic foul smell of high concentration, and the oxidation that treatment technology concentrates on photocatalyst (generally adopts UVA (365nm) or UVC (254nm) two kinds of ultraviolet lamps, adds TiO
2for catalyst reaches light-catalysed effect.
The reason that the limitation of prior art, shortcoming and these shortcomings exist:
1. the limitation of prior art:
A, the foul gas that can only process low concentration about 10 ~ 20ppmv and Nong Du≤50ppmvVOC waste gas;
B, the foul gas being not suitable for process high humility and VOC waste gas;
C, be only suitable for inorganic stink as H
2the removal of S and NH3, limited to the removal effect of organic stink.
2. prior art shortcoming:
A, system cloud gray model are unstable;
B, poor processing effect, unstable;
C, low to organic Odor control effect;
3. cause the reason of prior art shortcoming:
A, treating apparatus flow Field Design are unreasonable;
B, stench and VOC waste gas are too short in the area of illumination time of staying;
C, biological deodorizing were easily lost efficacy by poisoning.
Utility model content
For the defect of prior art, the utility model provide a kind of can effectively and high efficiency remove the odor removal of high concentration foul gas and VOC waste gas.In order to reach above-mentioned technical purpose, the technical scheme adopted is:
Remove an odor removal for high concentration foul gas and VOC waste gas, it comprises the vacuum-ultraviolet light reative cell that connects in turn and carbon manganese loads in mixture filter tower; Wherein said vacuum-ultraviolet light reative cell is one or more parallel connection, it comprise a reaction inner chamber and with the air inlet of this reaction inner space and air outlet, described air inlet is connected with air feed end; Described carbon manganese loads in mixture filter tower and comprises a tower body and the filter tower import that is communicated with this tower body and filter tower export, and described filter tower outlet is communicated with discharge end, and described air outlet is connected with filter tower import.
Further, according to gas flow direction, described reaction inner chamber is from bottom to top disposed with inlet box, vacuum-ultraviolet light district and air outlet box, be provided with air devider in wherein said inlet box, described air inlet is arranged on inlet box, and described air outlet is arranged in air outlet box.
Further, described vacuum-ultraviolet light district comprises VUV lamp group, the arrangement of its top-bottom cross or up and down composition grid shape grillages row; The wavelength of the VUV lamp of described VUV lamp group adopts 185nm, or 185nm and 254nm combination.
In order to effectively measure concentration and the relative humidity of required process foul gas and VOC waste gas, between described air feed end and described air inlet, be disposed with foul gas concentration tester and online humidity measurement instrument.
Further, the tower body that described carbon manganese loads in mixture filter tower is disposed with the filter bed of bellows, single groove or multiple-grooved series connection and lower bellows from top to bottom; Described filter tower import is arranged on bellows, and described filter tower outlet is arranged on lower bellows; Described filter bed is filled with coke and contains manganese strong oxidizer.
Preferably, described is KMnO containing manganese strong oxidizer
4or MnO
2.
Further, between the filter bed import of described carbon manganese mixing filter tower and filter bed export, bypass is provided with.
The beneficial effects of the utility model
1. adopt vacuum-ultraviolet light reative cell and carbon manganese to load in mixture filter tower to combine and remove foul gas and VOC waste gas, than adopting, single ozone is high 3 times as the deodorization process usefulness of oxidant.
2. vacuum-ultraviolet light reative cell deodorizing, no matter make is the foul gas of high concentration or low concentration, when entering VUV light reaction light district, can be irradiated, Quick Oxidation comprehensively, avoids gas to escape escaping or the situation of short circuit occurs, and effective clearance can reach 99%.
3. be filled with activated carbon char and load in mixture the filter bed of filter tower containing the carbon manganese of manganese strong oxidizer, foul gas and VOC waste gas, by having the chemical filtrate of strong oxidizing property, are oxidizedly decomposed into lower-molecular substance H
2o and CO
2, and chemical filtrate is by Mn
4+become Mn
2+time, chemical losing efficacy of filtrating box, but the O produced in vacuum-ultraviolet light reative cell
3the chemical filtrate that gaseous oxidation lost efficacy, can make Mn
2+become Mn
4+, this reproducible chemical filtrate reduces the replacement frequency of medium on the basis of improving device stability, and the replacement cycle reaches 2 ~ 6 months.
Accompanying drawing explanation
Fig. 1 is the odor removal structural representation of removal high concentration foul gas of the present utility model and VOC waste gas.
Fig. 2 is vacuum-ultraviolet light reaction chamber structure schematic diagram of the present utility model.
Fig. 3 is the A portion structural representation of Fig. 2.
Detailed description of the invention
In order to make technical purpose of the present utility model, technical scheme and advantage definitely, below preferred embodiment of the present utility model is described in detail.
Odor removal
As shown in Figure 1, the odor removal of removal high concentration foul gas of the present utility model and VOC waste gas, is connected with vacuum-ultraviolet light reative cell 3 (hereinafter referred to as VUV reative cell) in turn and loads in mixture filter tower 4 with carbon manganese; The quantity of described VUV reative cell 3 is one or more.When VUV reative cell 3 is several, parallel way between them, is adopted to connect.Described VUV reative cell 3 comprises a reaction inner chamber 30 and the air inlet 34 that is communicated with this reaction inner chamber 30 and air outlet 35, and described air inlet 34 is connected with air feed end 1; Described carbon manganese loads in mixture filter tower 4 and comprises a tower body 40 and the filter tower import 44 that is communicated with this tower body 40 and filter tower export 45, and described filter tower outlet 45 is communicated with discharge end 8.The connection that VUV reative cell 3 and carbon manganese load in mixture between filter tower 4 is then connected with between filter tower import 44 by described air outlet 35.
As shown in Figure 1, foul gas concentration tester and online humidity measurement instrument 2 is disposed with between air feed end 1 and air inlet 34, can record concentration and the relative humidity of gas pending before entering VUV reative cell 3 like this, in VUV reative cell 3, the setting of VUV lamp group then needs this group data.And the filter bed outlet 45 that described carbon manganese loads in mixture filter tower 4 is connected with blower fan 7 by air-valve 6 processed, described blower fan 7 is communicated with discharge end 8.Bypass 5 is provided with between the filter bed import 44 of described carbon manganese mixing filter tower 4 and filter bed export 45, the foul gas that road processed through VUV reative cell 3 if detect and VOC waste gas bellows 41 on entering up to standard, then by bypass 5, directly discharge from discharge end 8 after blower fan 7.
Vacuum-ultraviolet light reative cell
As shown in figures 2-3, according to gas flow direction, described reaction inner chamber 30 is from bottom to top disposed with inlet box 31, vacuum-ultraviolet light district 32 and air outlet box 33; Wherein, be provided with air devider 36 in described inlet box 31, the effect of described air devider 36 allows pending foul gas and VOC waste gas can enter vacuum-ultraviolet light district 32 equably; Described filter tower import 44 is arranged on bellows 41, and described filter tower outlet 45 is arranged on lower bellows 43.
Described vacuum-ultraviolet light district comprises VUV lamp group, the arrangement of its top-bottom cross or up and down composition grid shape grillages row.Several VUV reative cells 3 are combined by parallel way, process foul gas and VOC waste gas simultaneously, greatly can improve the efficiency of process gas like this.The airduct arrangement principle of described VUV reative cell 3 enters the right side with a left side to go out, low enter on the asymmetric geometry that goes out.Also required by having for the structural design in described vacuum-ultraviolet light district 32, it comprises VUV lamp group, in upper and lower cross arrangement or form grid shape grillages row up and down.Described VUV reative cell 3 adopts the VUV lamp group of 185nm, or the combination of 185nm and 254nmVUV lamp group, air in this lamp group and foul smell and moisture generation oxidation reaction generate ozone, hydroxyl radical free radical and nascent oxygen, thus destroy the molecular structure of foul gas and VOC waste gas.In described VUV reative cell 3, the size in vacuum-ultraviolet light district 32 foul gas concentration and relative humidity measured by foul gas concentration tester and online humidity measurement instrument 2 is mutually adjusted, and must consider the factors such as the natural length of VUV fluorescent tube, maintenance requirement, the time of staying or speed during adjustment.
Carbon manganese loads in mixture filter tower
Described carbon manganese loads in mixture filter tower 4 and comprises a tower body 40, and the filter tower import 44 be communicated with this tower body 40 and filter tower export 45, and described filter tower outlet 45 is communicated with discharge end 8.Particularly, described tower body 40 is disposed with bellows 41, filter bed 42 and lower bellows 43 from top to bottom, and described filter tower import 44 is arranged on bellows 41, and described filter tower outlet 45 is arranged on lower bellows 43.Described filter bed 42 is filled with activated carbon char above and contains manganese strong oxidizer (KMnO
4, MnO
2deng), it can produce the effect of absorption and chemistry redox.Organic stink that the material surface of filter bed adsorbs and VOC waste gas (vacuum-ultraviolet light reative cell 3 processes and does not complete, or time of contact is inadequate, or escape), load in mixture generation following reaction filter tower 4 at described carbon manganese:
2O
2+O
3+2(CH
3-)→2CO
2+3H
2O
By experiment and lab scale find: this carbon manganese loads in mixture the life-span of filtering material of filter tower 4 than generally not having OH and O
3the filtrate existed extends 15-30%.In other words, under cryogenic, such as, under the condition of 20-60 DEG C, O
3, OH is not 100% effectively in the redox reaction of activated carbon catalysis and manganese metal, but can has the reaction effect of about 15 ~ 30%.Test result shows, and because this device leading portion adopts VUV reative cell, the projected life of the filter tower material of back segment between 2 ~ 6 months, and need not change filtrate.
Filter bed 42 in described tower body can be multiple-grooved series system, but through the foul gas of VUV reative cell process and VOC waste gas Su Du≤0.5 meter per second by filter bed, the wind speed meeting above-mentioned VUV reative cell requires (≤0.5 meter per second).The foul gas that VUV reative cell 3 is not yet handled well by such carbon manganese mixing filter tower and VOC waste gas are for further processing, and improve diversity and the removal efficiency of the process foul smell kind of odor removal, removal efficiency can more than 99%.
Deodorizing treatment process
The deodorizing of high concentration foul gas and VOC waste gas needs the further process entering two sections of carbon manganese mixing filter towers 4 after the photocatalysis oxidation reaction of one section of VUV reative cell 3.
One section of process---the concrete treatment step of VUV reative cell 3 is: foul gas and VOC waste gas export from air feed end 1, successively through foul gas concentration tester and online humidity measurement instrument 2, entered in VUV reative cell 3 by air inlet 34 again after acquisition gas concentration and relative humidity.Described foul gas and VOC waste gas enter inlet box 31 from the air inlet 34 of reaction inner chamber 30, under the effect of air devider 36, make gas uniform enter vacuum-ultraviolet light district 32 carry out photocatalysis oxidation reaction, enter air outlet box 33 after completion of the reaction and discharged by air outlet 35.If now VUV reative cell 3 is several, so just can process foul gas and the VOC waste gas of large discharge simultaneously, greatly improve the efficiency of process foul gas and VOC gas.
General light-catalysed way is: adopt UVC or UVA to add TiO
2operation, makes the oxygen in air and moisture derive as OH (hydroxyl radical free radical), but the OH concentration that these methods produce is inadequate.The utility model adopts VUV lamp group, can produce following reaction with the oxygen of air and contact with moisture:
2O
2+2H
2O→[O]+O
3+2OH·+2H
+
Except OH, vacuum-ultraviolet light can cause ozone (O
3) and nascent can the generation of oxygen [O], they have very strong oxidisability, add OH totally three kinds of oxidation materials, very effective to the oxidation of organic sulfur foul smell, the O that the VUV of every 1Kw produces
3and OH is more than UVC+TiO
2efficiency high, therefore can effectively process high concentration foul gas.
Characteristic described in VUV reative cell: VUV lantern festival produces photon (hv), first ecological oxygen ﹝ O ﹞, the ozone (O of enough concentration
3) and hydroxyl radical free radical (OH).In VUV reative cell, to all kinds of organic foul smell, as DMS, TEA, benzene, toluene has the function of Strong oxdiative.Under the foul smell of same concentrations and identical component, VUV ultraviolet light is more effective than the process of the photocatalyst of other UVC, UVA and more energy-conservation.Its reason is: first different from the light district of common multistage planar design, described vacuum-ultraviolet light district, adopt the design of segmented volumetric formula, thus light can be made to form three-dimensional and intensive irradiation to the foul smell passed through, meet foul smell by time (the during stop 1-2sec) photon that can produce with VUV, ozone can fully contact with OH, secondly by making reaction continuously be reinforced at air inlet 34 Set scale control valve or employing frequency conversion fan, photodissociation/chemical oxidation reaction low during height time not.
Two sections of process---the concrete processing sequence of carbon manganese mixing filter tower 4 is: foul gas and VOC waste gas enter in tower body 40 from the filter bed import 44 of carbon manganese mixing filter tower 4, by upper bellows 41 by being filled with activated carbon char and the filter bed 42 containing manganese strong oxidizer, then enter lower bellows 43.If the connected mode that the filter bed 42 of carbon manganese mixing filter tower 4 is connected for multiple-grooved, then continuous several times can pass through multistage filter bed 42 from top to bottom.After two sections of process, foul gas and VOC waste gas are again through discharge end 8 discharge up to standard, need to carry out coutroi velocity by controlling air-valve 6 before discharge, and now blower fan 7 is started working.Certainly, if carbon manganese mixing filter tower 4 is provided with bypass 5, up to standard before detection foul smell enters bellows 41 or filter bed 42, directly discharge by bypass 5 and blower fan 7 etc.
Described its function of carbon manganese mixing filter tower has following two aspects:
On the one hand, provide the porous suction-operated of activated carbon char, to the superfluous O in VUV reative cell
3or OH provides a place, itself and the foul smell be adsorbed on activated carbon char are reacted, so that activated carbon char has better adsorption capacity.
On the other hand, manganese compound can carry out chemical reaction with foul smell and ozone.2O
2+O
3+2(CH3-)→2CO
2+3H
2O；
make chemical filtrate under this reaction, have the longer life-span, experimental data display can extend the absorption life-span of 15-30%.
Described odor removal comprises following parameter:
1. VUV reative cell total residence time 3-4 second, the parameter in V U V light district: Ting stays Shi Jian≤1-2 second; (containing VUV light district)
2. ozone Chan Sheng Liang≤0.2 ~ 0.8g/Nm3 gas;
3. uviol lamp power: 2.5 ~ 5/1000Nm3;
4. Gas superficial velocity :≤0.5m/s;
5. high concentration: 50 ~ 100ppmv;
6. high temperature: 15 ~ 70 DEG C;
7. high humility: 50 ~ 90%;
8. clearance: 80 ~ 99%;
9. qualified discharge: GB 14554-93.
Method of the present utility model and device, can effectively process produced organic odoriferous, and in lab scale process valid certificates.The testing factory of (500NM3/ hour), discharge meets the standard of GB14554-93.
Effect example
Industry Waste water factory of Shenzhen company deodorizing engineering: (1). vacuum-ultraviolet light reative cell deodorizing: pending foul gas and VOC waste gas enter from air feed end 1, for methyl sulfide, the concentration recording foul gas and VOC waste gas is 200mg/m
3, humidity Wei≤70% that online humidity measurement instrument 2 records.Described vacuum-ultraviolet light reative cell total residence time is >=3 seconds, and wherein in vacuum-ultraviolet light district, Ting stays Shi Jian≤1 second; Now vacuum-ultraviolet light district ozone generation Wei≤0.2g/Nm3; Now uviol lamp group medium ultraviolet lamp power Wei≤2.5/1000Nm3.
(2). carbon manganese loads in mixture the deodorizing of filter tower deep layer: the foul gas processed through step (1) and VOC waste gas enter carbon manganese and loads in mixture in the tower body of filter tower, and now foul gas and VOC waste gas are≤0.5m/s by the speed of filter bed).It is two grooves series connection that this carbon manganese loads in mixture filter bed in filter tower, the activated carbon char of filter bed and be 1:1 containing manganese strong oxidizer part by weight; The gas processed through step (2) is discharged from filter tower outlet 45, is then drained by discharge end.The concentration recording foul gas and VOC waste gas in this filter bed outlet 45 is 20mg/m
3, clearance is up to 90%, and the treatment effect details of this effect example please refer to table 1.
Contrast on effect example
With the foul gas of Industry Waste water factory of Shenzhen company for sample, carry out contrast test test O by autonomous Design DEMO equipment
3, O
3/ UV, O
3/vUV, VUV+ catalyst (TiO
2), the treatment effect of VUV+ chemical filter screen technique asks for an interview table 1, take methyl sulfide as index.
The treatment effect contrast table of the various deodorizing method of table 1
Content described in this description embodiment is only enumerating the way of realization that utility model is conceived; protection domain of the present utility model should not be regarded as being only limitted to the concrete form that embodiment is stated, protection domain of the present utility model also relates to those skilled in the art and conceives the equivalent technologies means that can expect according to the utility model.
Claims (8)
1. remove an odor removal for high concentration foul gas and VOC waste gas, it is characterized in that, this odor removal comprises the vacuum-ultraviolet light reative cell that connects in turn and carbon manganese loads in mixture filter tower; Wherein, described vacuum-ultraviolet light reative cell is one or more parallel connection, it comprise a reaction inner chamber and with the air inlet of this reaction inner space and air outlet, described air inlet is connected with air feed end; Described carbon manganese loads in mixture filter tower and comprises a tower body and the filter tower import that is communicated with this tower body and filter tower export, and described filter tower outlet is communicated with discharge end, and described air outlet is connected with filter tower import.
2. odor removal according to claim 1, it is characterized in that, according to gas flow direction, described reaction inner chamber is from bottom to top disposed with inlet box, vacuum-ultraviolet light district and air outlet box, be provided with air devider in wherein said inlet box, described air inlet is arranged on inlet box, and described air outlet is arranged in air outlet box.
3. odor removal according to claim 2, is characterized in that, described vacuum-ultraviolet light district comprises VUV lamp group, the arrangement of its top-bottom cross or up and down composition grid shape grillages row; The wavelength of the VUV lamp of described VUV lamp group adopts 185nm, or 185nm and 254nm combination.
4. odor removal according to claim 1, is characterized in that, is disposed with foul gas concentration tester and online humidity measurement instrument between described air feed end and described air inlet.
5. odor removal according to claim 1 and 2, is characterized in that, the tower body that described carbon manganese loads in mixture filter tower is disposed with the filter bed of bellows, single groove or multiple-grooved series connection and lower bellows from top to bottom; Described filter tower import is arranged on bellows, and described filter tower outlet is arranged on lower bellows; Described filter bed is filled with coke and contains manganese strong oxidizer.
6. odor removal according to claim 5, is characterized in that, described is KMnO containing manganese strong oxidizer
4or MnO
2.
7. odor removal according to claim 5, is characterized in that, between the filter bed import of described carbon manganese mixing filter tower and filter bed export, be provided with bypass.
8. odor removal according to claim 6, is characterized in that, between the filter bed import of described carbon manganese mixing filter tower and filter bed export, be provided with bypass.
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|---|---|---|---|
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126569A (en) * | 2015-09-27 | 2015-12-09 | 苏州日臻环保设备有限公司 | NaClO oxidation/composite photocatalysis/VOC (Volatile Organic Compound) absorption integrated waste gas treatment equipment and treatment method |
| CN105126571A (en) * | 2015-09-27 | 2015-12-09 | 苏州日臻环保设备有限公司 | Wet-type oxidation/composite photochemical combined treatment equipment for waste gas of sewage and treatment method |
| CN106139844A (en) * | 2015-04-10 | 2016-11-23 | 张作保 | A kind of remove high concentration foul gas and the odor removal of VOC waste gas and method |
| CN106881013A (en) * | 2017-04-12 | 2017-06-23 | 复旦大学 | A kind of device for decomposing trimethylamine foul gas |
| CN106955559A (en) * | 2016-01-12 | 2017-07-18 | 上海溪工环境科技有限公司 | Meteorological condition self adaptation deodorizing device |
-
2015
- 2015-04-10 CN CN201520215993.4U patent/CN204601969U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106139844A (en) * | 2015-04-10 | 2016-11-23 | 张作保 | A kind of remove high concentration foul gas and the odor removal of VOC waste gas and method |
| CN105126569A (en) * | 2015-09-27 | 2015-12-09 | 苏州日臻环保设备有限公司 | NaClO oxidation/composite photocatalysis/VOC (Volatile Organic Compound) absorption integrated waste gas treatment equipment and treatment method |
| CN105126571A (en) * | 2015-09-27 | 2015-12-09 | 苏州日臻环保设备有限公司 | Wet-type oxidation/composite photochemical combined treatment equipment for waste gas of sewage and treatment method |
| CN106955559A (en) * | 2016-01-12 | 2017-07-18 | 上海溪工环境科技有限公司 | Meteorological condition self adaptation deodorizing device |
| CN106881013A (en) * | 2017-04-12 | 2017-06-23 | 复旦大学 | A kind of device for decomposing trimethylamine foul gas |
| CN106881013B (en) * | 2017-04-12 | 2023-09-01 | 复旦大学 | Device for decomposing trimethylamine malodorous gas |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20180411 Address after: 523750 5F-05, 07, Huan Cheng Road, Huang Jiang Town, Dongguan, Guangdong, China, 07 Patentee after: Dongguan meenen Environment Technology Co., Ltd. Address before: 523750 room 507, Tai Fu Building, 391 Ring Road, Dongguan, Guangdong. Patentee before: Zhang Zuobao |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150902 Termination date: 20190410 |