CN207384888U - A kind of VOCs exhaust treatment systems - Google Patents

A kind of VOCs exhaust treatment systems Download PDF

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Publication number
CN207384888U
CN207384888U CN201721362629.6U CN201721362629U CN207384888U CN 207384888 U CN207384888 U CN 207384888U CN 201721362629 U CN201721362629 U CN 201721362629U CN 207384888 U CN207384888 U CN 207384888U
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activated carbon
order
oil removing
adsorbent equipment
vocs
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CN201721362629.6U
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Chinese (zh)
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邵有国
李延超
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KPICDAWN POLYMER (SHANGHAI) Co Ltd
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KPICDAWN POLYMER (SHANGHAI) Co Ltd
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

The utility model discloses a kind of VOCs exhaust treatment systems, including:First order cooling oil removing pot, second level cooling oil removing pot, plasma discharge degreasing unit, activated carbon adsorption device and the exhaust duct being sequentially communicated;Booster fan is equipped at the exhaust duct;The activated carbon adsorption device includes the first order Alveolate activated carbon adsorbent equipment being sequentially communicated and second level granular active carbon adsorbent equipment, the first order Alveolate activated carbon adsorbent equipment is connected with second level cooling oil removing pot, and the second level granular active carbon adsorbent equipment is connected with exhaust pipe;The extending direction of the honeycomb channel of Alveolate activated carbon in the first order Alveolate activated carbon adsorbent equipment is identical with the circulating direction of gas in the first order Alveolate activated carbon adsorbent equipment.The VOCs contents for being passed through preceding exhaust gas in activated carbon can be effectively reduced, reduce the replacement frequency of activated carbon, reduce the usage amount of activated carbon, improve the removal efficiency of VOCs in exhaust gas.

Description

A kind of VOCs exhaust treatment systems
Technical field
The utility model is related to exhaust-gas treatment field more particularly to a kind of VOCs exhaust treatment systems.
Background technology
Volatile organic matter, i.e. VOCs, the fields such as modified plastics, Masterbatch, functional agglomerate, cable produce in, it is necessary to The volatile organic matter absorbed by vacuum volatilization device is post-processed, to meet the discharge standard of industrial waste gas.
Active carbon adsorption technology is the master that the most commonly used and effective gas purification technique and the VOCs of industry at present are administered One of Flow Technique.Absorption method is primarily adapted for use in adsorbing separation and the purification of low concentration gaseous pollutant, for the organic of high concentration Gas under normal circumstances firstly the need of " drop is dense " processing is carried out by techniques such as condensations, then carries out adsorption cleaning again.
The vacuum deliming gas of modified plastic industry is using boiling point as based on 80-220 DEG C of volatilizable gas, we are these Gas is referred to as " oil gas ".Purification for the high intensity volatile organic gas such as oil gas can also use absorption method, still There can be higher requirement to activated carbon, because the adsorption capacity for having adsorbed the activated carbon of a large amount of oil gas gradually weakens, if not in time Replacing activated carbon and being then discharged into the tail gas of air still can not meet industrial waste gas there are more volatile organic matter gas Discharge standard.But normal manufacturing schedule can be influenced by frequently replacing activated carbon, and the higher price of activated carbon, dosage increase, This can also substantially increase the production cost of enterprise.
Therefore, the applicant is directed to providing a kind of new VOCs exhaust treatment systems to solve above-mentioned technical problem.
The content of the invention
The purpose of this utility model is to provide a kind of VOCs exhaust treatment systems, can reduce the replacement frequency of activated carbon, The usage amount of activated carbon is reduced, improves the removal efficiency of VOCs in exhaust gas.
The technical scheme that the utility model is provided is as follows:
A kind of VOCs exhaust treatment systems, including:The first order being sequentially communicated cools down oil removing pot, second level cooling oil removing Tank, plasma discharge degreasing unit, activated carbon adsorption device and exhaust duct;Booster fan is equipped at the exhaust duct;The work Property charcoal adsorbent equipment include the first order Alveolate activated carbon adsorbent equipment being sequentially communicated and the absorption of second level granular active carbon Device, the first order Alveolate activated carbon adsorbent equipment are connected with second level cooling oil removing pot, second grade particles Activated charcoal adsorption device is connected with exhaust pipe;Alveolate activated carbon in the first order Alveolate activated carbon adsorbent equipment The extending direction of honeycomb channel is identical with the circulating direction of gas in the first order Alveolate activated carbon adsorbent equipment.
In said structure, by the first order cool down oil removing pot and the second level cool down set again after oil removing pot a grade from Electron discharge degreasing unit is electrolysed the exhaust gas by two level cooling oil removing, by height boiling in the low boiling point in exhaust gas and part The volatile organic matter of point is electrolyzed to produce CO2And H2O etc. is nontoxic or the substance of less toxic low evil, is passed through so as to be further reduced The content of volatile organic matter in consequent activities charcoal adsorbent equipment reduces the dosage of activated carbon, reduces the replacement frequency of activated carbon Rate.
Generally use granular active carbon carries out exhaust gas the absorption of oil gas in the prior art, and two level is employed in this structure Activated carbon adsorption is first adsorbed using Alveolate activated carbon, is adsorbed with granular active carbon, can be greatly improved The efficiency of activated carbon adsorption.Since Alveolate activated carbon has larger surface area, contact of the exhaust gas with activated carbon can be improved Area, so as to improve adsorption efficiency.And the windage of Alveolate activated carbon is smaller, under the wind speed of 2m/s, windage < 480Pa, so as to reduce exhaust duct at set booster fan power, so as to reduce the energy consumption at booster fan.
Preferably, the bottom of the first order cooling oil removing pot is equipped with gate gurgle valve, the bottom of the second level cooling oil removing pot Portion is equipped with gate gurgle valve.
In said structure, by being cooled down in the first order at oil removing pot and second level cooling oil removing pot since temperature reduces, give up The higher volatile organic matter gas of boiling point in gas can be converted into liquid and be deposited in bottom, finally by opening the gate gurgle valve The liquid of the volatile organic matter to cool down is discharged.
Preferably, height >=15m of the exhaust pipe.
The height of the exhaust pipe is arranged on more than 15m, in order to meet national low-altitude discharged standard, due to being higher than 15m On air velocity it is larger, quickly exhaust gas can be dispelled, and less than 15m air in flow velocity it is smaller, and close to resident give birth to It is living, health hazard easily is caused to the resident of surrounding.
Preferably, lye spray column, the lye spray column and the are equipped in the front of first order cooling oil removing pot Level-one cooling oil removing pot connection.
Preferably, bag filter is equipped in front of the lye spray column, the bag filter is sprayed with the lye Drench tower connection.
A kind of VOCs exhaust treatment systems provided by the utility model, can bring following advantageous effect:
The utility model cools down degreasing unit by first passing through two level, by the higher volatile organic matter liquid of exhaust gas mid-boiling point Change, relatively low and the remaining exhaust gas of small part is higher waves by the further scavenging mid-boiling point of plasma discharge degreasing unit Hair property organic matter, after above-mentioned two level cools down oil removing and plasma discharge degreasing unit, volatile organic matter in exhaust gas Removal efficiency can reach more than 75%, can substantially reduce dosage and the replacement of activated carbon in consequent activities charcoal adsorbent equipment Frequency further improves the adsorption efficiency of VOCs in exhaust gas.
Description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to VOCs exhaust treatment systems Above-mentioned characteristic, technical characteristic, advantage and its realization method are further described.
Fig. 1 is the structure diagram of the specific embodiment of the VOCs exhaust treatment systems of the utility model.
Drawing reference numeral explanation:
The 1a- first order cools down oil removing pot, 1b- second level cooling oil removing pot, 1c- gate gurgle valves, 2- plasma discharges oil removing dress It puts, 3- first order Alveolate activated carbon adsorbent equipments, 4- second level granular active carbon adsorbent equipment, 5- exhaust ducts, 6- superchargings Wind turbine.
Specific embodiment
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, attached drawing will be compareed below Illustrate specific embodiment of the present utility model.It should be evident that the accompanying drawings in the following description is only the one of the utility model A little embodiments, for those of ordinary skill in the art, without creative efforts, can also be according to these Attached drawing obtains other attached drawings, and obtains other embodiments.
To make simplified form, in each figure only schematically show with the relevant part of the utility model, they are simultaneously Its practical structures as product is not represented.
【Embodiment 1】
As shown in Figure 1, present embodiment discloses a kind of VOCs exhaust treatment systems, which includes be sequentially communicated first Grade cooling oil removing pot 1a, second level cooling oil removing pot 1b, plasma discharge degreasing unit 2, activated carbon adsorption device and exhaust duct 5.Wherein, the lower end of exhaust duct 5 is equipped with booster fan 6, to the suction that entire VOCs exhaust treatment systems system needs, and is vented The height of pipe is 15m, and activated carbon adsorption device is granular active carbon adsorbent equipment.In other specific embodiments, exhaust pipe Height can also be 16m, 17m etc., as long as height >=15m of exhaust pipe, details are not described herein again.
As shown in Figure 1, the VOCs exhaust treatment system courses of work of the present embodiment are as follows:
Exhaust gas is first passed through in first order cooling oil removing pot 1a and heat exchange is carried out by tank body and extraneous air, so as to useless Gas cools down, due to modified plastic industry vacuum volatilization room generate exhaust gas using boiling point as 80 DEG C~220 DEG C can Based on volatile organic matter gas, before first order cooling oil removing pot 1a is passed through, which has higher temperature, and exhaust gas exists It cools in first order cooling oil removing pot 1a so that part mid-boiling point and high boiling volatile organic matter gas are condensed into For liquid entrapment in first order cooling oil removing pot 1a, exhaust gas, which is passed into again in the cooling oil removing pot 1b of the second level, continues cooling drop Temperature further retains the mid-boiling point in exhaust gas and high boiling volatile organic matter gas liquefaction, by the above-mentioned first order The cooling oil removing of oil removing pot 1a and second level cooling oil removing pot 1b are cooled down, the removal efficiency for enabling to VOCs in exhaust gas is reachable 70%.
Again the exhaust gas out of the second level cooling oil removing pot 1b out is passed through to wait in electron discharges degreasing unit and be electrolysed, Under the action of extra electric field, what medium discharge generated largely takes energy electron bombardment VOCs, makes its ionization, dissociation and excitation, makes It obtains complicated macromolecular and is converted into simple small molecule, finally obtain CO2And H2O etc. is nontoxic or the substance of less toxic low evil so that VOCs in exhaust gas obtains degradation removal, the removal efficiency energy of the VOCs of the exhaust gas after electron discharges degreasing unit is waited to treat Enough reach more than 75%.
Again by from wait electron discharges degreasing unit come out exhaust gas be passed through in granular active carbon adsorbent equipment to VOCs into Row absorption, further improves the removal efficiency of VOCs, and finally by granular active carbon adsorbent equipment, treated that exhaust gas is discharged into In exhaust pipe, and pass through the upper opening discharge of exhaust pipe.
By adding one again behind first order cooling oil removing pot 1a and the second level cooling oil removing pot 1b electronics is waited to put Electric degreasing unit, can be to remaining low boiling in exhaust gas after first order cooling oil removing pot 1a and second level cooling oil removing pot 1b processing Point and the remaining mid-boiling point in part and high boiling volatile organic matter gas further remove, and improve the VOCs's of exhaust gas Removal efficiency so as to be further reduced the content for the volatile organic matter being passed through in consequent activities charcoal adsorbent equipment, reduces activated carbon Dosage, reduce the replacement frequency of activated carbon, improve the removal efficiency of VOCs in exhaust gas.Prior art granular activated carbon needs It takes 3~4 months and replaces once, by improving, the granular active carbon of the present embodiment only needs 1 year~1 year half to replace once i.e. Can, and ensure that VOCs meets discharging standards in exhaust gas.
Activated carbon adsorption device is the first order Alveolate activated carbon adsorbent equipment 3 and the work of second level graininess being sequentially communicated Property charcoal adsorbent equipment 4, wherein, first order Alveolate activated carbon adsorbent equipment 3 is received from electron discharges degreasing unit is waited to come out Exhaust gas, first order absorption oil removing is carried out to the VOCs in exhaust gas, then exhaust gas is passed through second level granular active carbon absorption dress Second level absorption oil removing is carried out in putting 4.Wherein, the extending direction of the honeycomb channel of Alveolate activated carbon and the cellular work of the first order The circulating direction of exhaust gas is identical in property charcoal adsorbent equipment 3.
Alveolate activated carbon has stereoscopic three-dimensional shape structure, when adding the contact area of exhaust gas and activated carbon and contacting Between, so as to effectively raise adsorption efficiency.And the windage of Alveolate activated carbon is smaller, can reduce the load of booster fan 6, So as to save the energy consumption of booster fan 6.
Specifically, the exhaust gas discharged from vacuum volatilization room can first pass through bag-type dust, the particulate matter in exhaust gas is removed, then It is passed through in spray column, in spray column after lye atomization, the part VOCs in exhaust gas is dissolved and absorbed, the exhaust gas come out from spray column It is passed through in the VOCs exhaust treatment systems of the present embodiment and is handled again.
The present embodiment benzene homologues content in VOCs exhaust treatment system entrances measure exhaust gas is 112mg/m3, existing skill The benzene homologues content at exhaust outlet that art is adsorbed only with two-stage granular active carbon is 33mg/m3, by this reality The benzene homologues content applied at the exhaust outlet after example treats is only 18mg/m3, compared to the prior art, the present embodiment processing VOCs removal efficiency highers in exhaust gas afterwards, are more in line with national requirements for environmental protection.
【Embodiment 2】
As shown in Figure 1, embodiment 2, on the basis of embodiment 1, the first order of embodiment 2 cools down the bottom of oil removing pot 1a Equipped with gate gurgle valve 1c, the bottom of second level cooling oil removing pot 1b also is provided with gate gurgle valve 1c, can will be by by opening gate gurgle valve 1c It is trapped in the liquefied volatile organic matter discharge of bottom.
It should be noted that above-described embodiment can be freely combined as needed.The above is only the utility model Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle On the premise of, several improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims (5)

1. a kind of VOCs exhaust treatment systems, which is characterized in that including:
The first order being sequentially communicated cools down oil removing pot, second level cooling oil removing pot, plasma discharge degreasing unit, activated carbon adsorption Device and exhaust duct;
Booster fan is equipped at the exhaust duct;
The activated carbon adsorption device includes the first order Alveolate activated carbon adsorbent equipment being sequentially communicated and second level graininess Activated carbon adsorption device, the first order Alveolate activated carbon adsorbent equipment is connected with second level cooling oil removing pot, described Second level granular active carbon adsorbent equipment is connected with exhaust pipe;
The extending direction of the honeycomb channel of Alveolate activated carbon in the first order Alveolate activated carbon adsorbent equipment with it is described The circulating direction of gas is identical in first order Alveolate activated carbon adsorbent equipment.
2. VOCs exhaust treatment systems according to claim 1, it is characterised in that:
The bottom of the first order cooling oil removing pot is equipped with gate gurgle valve, and the bottom of the second level cooling oil removing pot is equipped with draining Valve.
3. VOCs exhaust treatment systems according to claim 1, it is characterised in that:
Height >=15m of the exhaust pipe.
4. VOCs exhaust treatment systems according to claim 1, it is characterised in that:
Lye spray column is equipped in the front of first order cooling oil removing pot, the lye spray column cools down oil removing with the first order Tank connects.
5. VOCs exhaust treatment systems according to claim 4, it is characterised in that:
Bag filter is equipped in front of the lye spray column, the bag filter is connected with the lye spray column.
CN201721362629.6U 2017-10-23 2017-10-23 A kind of VOCs exhaust treatment systems Active CN207384888U (en)

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Application Number Priority Date Filing Date Title
CN201721362629.6U CN207384888U (en) 2017-10-23 2017-10-23 A kind of VOCs exhaust treatment systems

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Application Number Priority Date Filing Date Title
CN201721362629.6U CN207384888U (en) 2017-10-23 2017-10-23 A kind of VOCs exhaust treatment systems

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108905576A (en) * 2018-07-24 2018-11-30 福州闽创环保科技有限公司 A kind of VOCs treatment technique
CN108905577A (en) * 2018-07-24 2018-11-30 福州闽创环保科技有限公司 A kind of VOCs method for purifying and processing waste gas

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108905576A (en) * 2018-07-24 2018-11-30 福州闽创环保科技有限公司 A kind of VOCs treatment technique
CN108905577A (en) * 2018-07-24 2018-11-30 福州闽创环保科技有限公司 A kind of VOCs method for purifying and processing waste gas
CN108905576B (en) * 2018-07-24 2021-04-16 福州闽创环保科技有限公司 Organic waste gas treatment process
CN108905577B (en) * 2018-07-24 2021-04-20 福州闽创环保科技有限公司 VOCs waste gas purification treatment method

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