CN104436979B - A kind of VOCs emission-control equipment - Google Patents
A kind of VOCs emission-control equipment Download PDFInfo
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- CN104436979B CN104436979B CN201410532006.3A CN201410532006A CN104436979B CN 104436979 B CN104436979 B CN 104436979B CN 201410532006 A CN201410532006 A CN 201410532006A CN 104436979 B CN104436979 B CN 104436979B
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- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The present invention relates to a kind of VOCs emission-control equipment, including VOCs exhaust gas source, organic matter treating apparatus, blower fan, and tail gas recycle pipeline, described organic matter treating apparatus and tail gas recycle pipeline are sequentially connected with, the inlet end of described organic matter treating apparatus is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, the outlet side of described tail gas recycle pipeline is connected with the FAI Fresh Air Intake end pipeline of VOCs exhaust gas source, described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described blower fan is arranged on described closed loop, described organic matter treating apparatus also with organic solvent collecting device pipeline.Present invention achieves the zero-emission of VOCs waste gas, completely eliminate the VOCs waste gas exhaust emission to environment；Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meet modern enterprise to energy-saving and emission-reduction, improve productivity effect requirement, to economize on resources minimizing cost be significant.
Description
Technical field
The present invention relates to a kind of VOCs emission-control equipment, relate to environment protection treating technical field.
Background technology
It is known that PM2.5(fine particle), haze weather day by day serious on the life of the people and the impact of health, and
VOCs(VOC) it is one of main composition factor making PM2.5 concentration abnormality, current industrial VOCs
Total release reached the level of more than 2,000 ten thousand tons/year.In the occasion of various use organic solvents, as sprayed paint, printing,
The processing places such as metal degreasing and defat, binding agent, pharmacy, plastics, rubber, oil, VOC (is called for short
VOCs) all at contaminated air.People by various removal volatile solvents (as condensation method, absorption method, absorption process, combustion method,
Bioanalysis, membrane separation process, plasma method, photocatalytic oxidation) in pollution control technology, although processing system and method are continuous
Updating, clearance or the response rate improve constantly (method having is up to more than 98%), but are constantly present the discharge of remaining VOCs, more
Many is can not qualified discharge, the dirty gas disposal method having the most also can produce secondary pollution.Along with atmospheric pollution is controlled by government
The further increasing of reason supervision, various places, the discharge standard of every profession and trade improve further, make existing processing system and method
Processing limit be difficult in adapt to the discharge standard requirement that improves constantly.
Summary of the invention
In view of the deficiencies in the prior art, it is an object of the invention to provide a kind of VOCs emission-control equipment.
Technical program of the present invention lies in:
A kind of VOCs emission-control equipment, including VOCs exhaust gas source, for removing the organic matter treating apparatus of VOCs, wind
Machine and tail gas recycle pipeline, described organic matter treating apparatus is existing absorption absorption method, absorption absorption method, condensation recovery
The combination of the one or more of which device that method, burning method, catalytic burning method, plasma method or bioanalysis are used, its feature
Be: described organic matter treating apparatus and tail gas recycle pipeline are sequentially connected with, the inlet end of described organic matter treating apparatus with
The Waste gas outlet pipeline of VOCs exhaust gas source connects, the outlet side of described tail gas recycle pipeline and the fresh air of VOCs exhaust gas source
Inlet end pipeline connects, and described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop,
Described blower fan is arranged on described closed loop, and described organic matter treating apparatus is also with organic solvent collecting device pipeline even
Connect.
Wherein, described blower fan loop between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end
On, described tail gas recycle pipeline is provided with air compensating device, and described air compensating device is by being passed through in closed loop
Or air-out, to alleviate or to eliminate the problem causing changes in air volume because of negative pressure or malleation present in whole loop.
Air quality adjusting means, described air quality it is additionally provided with between described air compensating device and VOCs exhaust gas source
Adjusting means includes air temperature modification unit and/or air humidity regulation unit, thus according to VOCs exhaust gas source to air matter
The specific requirement of amount is adjusted selecting.
It is additionally provided with a paint mist treatment device, described paint between described VOCs exhaust gas source Waste gas outlet and fan air inlet
Mist processing means carries out coating cloud to VOCs waste gas, dust, mist of oil, the removal of aerosol process, and will obtain after processing useless
Slag can be reclaimed by the waste residue collection device being connected with its pipeline.
A defecator and one cold also it is disposed with between described VOCs exhaust gas source Waste gas outlet and fan air inlet
Radiator cooler.
Described organic matter treating apparatus is the device using absorption absorption method, and this device includes adsorption tanks, described adsorption tanks
On offer cooling and dehumidifying passage, one end of described cooling and dehumidifying passage is connected with the second blower fan, described cooling and dehumidifying passage
The other end is connected with the external world.
Described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline.
Described fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline, another road across
Directly it is connected with next device after crossing organic matter treating apparatus.
Described organic solvent collecting device is solvent separating tank, solvent tank or solvent equipment for purifying.
It is an advantage of the current invention that: present invention achieves the zero-emission of VOCs waste gas, overcome equipment manufacture of environmental protection enterprise
Want for many years to solve and the technical barrier of unsolved VOCs zero waste gas emission, completely eliminate VOCs waste gas to environment
Exhaust emission；Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meets
Modern enterprise is to energy-saving and emission-reduction, the requirement of raising productivity effect, and to economizing on resources, minimizing cost is significant.
Accompanying drawing explanation
Fig. 1 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 1.
Fig. 2 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 2.
Fig. 3 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 4.
Fig. 4 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 5.
Fig. 5 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 6.
Fig. 6 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 7.
Fig. 7 show the structure flow chart of the VOCs exhaust treatment system of the embodiment of the present invention 8.
Label declaration:
1-paint mist treatment device；2-organic matter treating apparatus；3-blower fan；4-tail gas recycle pipeline；5-VOCs waste gas
Source；6-waste residue collection device；7-organic solvent collecting device；8-air compensating device；9-air quality adjusting means；
10-the second blower fan；11-defecator；12-chiller.
Detailed description of the invention
For the features described above of the present invention and advantage can be become apparent, special embodiment below, and coordinate accompanying drawing, make in detail
Carefully it is described as follows.
Referring to figs. 1 to 7, the present invention relates to a kind of VOCs emission-control equipment, including VOCs exhaust gas source, for removing VOCs
Organic matter treating apparatus, blower fan and tail gas recycle pipeline, described organic matter treating apparatus be existing absorption absorption method,
The one of which or many that absorption absorption method, condensation absorption method, burning method, catalytic burning method, plasma method or bioanalysis are used
Planting the combination of device, described organic matter treating apparatus and tail gas recycle pipeline are sequentially connected with, entering of described organic matter treating apparatus
Gas end is connected with the Waste gas outlet pipeline of VOCs exhaust gas source, and the outlet side of described tail gas recycle pipeline is new with VOCs exhaust gas source
Fresh air inlet end pipeline connects, and described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline composition one Guan Bi are followed
Loop back path, described blower fan is arranged on described closed loop, and described organic matter treating apparatus also collects dress with organic solvent
Put pipeline to connect.
On above-mentioned blower fan loop between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end, institute
Stating tail gas recycle pipeline and be provided with air compensating device, described air compensating device is by being passed through or discharging in closed loop
Air, to alleviate or to eliminate the problem causing changes in air volume because of negative pressure or malleation present in whole loop.
Air quality adjusting means, described air quality it is additionally provided with between above-mentioned air compensating device and VOCs exhaust gas source
Adjusting means includes air temperature modification unit and/or air humidity regulation unit, thus according to VOCs exhaust gas source to air matter
The specific requirement of amount is adjusted selecting.
It is additionally provided with a paint mist treatment device, described paint between above-mentioned VOCs exhaust gas source Waste gas outlet and fan air inlet
Mist processing means carries out coating cloud to VOCs waste gas, dust, mist of oil, the removal of aerosol process, and will obtain after processing useless
Slag can be reclaimed by the waste residue collection device being connected with its pipeline.
A defecator and one cold also it is disposed with between above-mentioned VOCs exhaust gas source Waste gas outlet and fan air inlet
Radiator cooler.
Above-mentioned organic matter treating apparatus or the device for employing absorption absorption method, this device includes adsorption tanks, described absorption
Offering cooling and dehumidifying passage on tank, one end of described cooling and dehumidifying passage is connected with the second blower fan, described cooling and dehumidifying passage
The other end be connected with the external world.
Above-mentioned fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline.
Above-mentioned fan outlet also has a road to be directly connected with VOCs exhaust gas source FAI Fresh Air Intake end pipeline, another road across
Directly it is connected with next device after crossing organic matter treating apparatus.
When being additionally provided with other processing units between VOCs exhaust gas source Waste gas outlet and fan air inlet, in exhaust gas source
Allowing in the case of exhaust gas concentration, portion is without organic matter treating apparatus, after filtering or filtering and cool down, from
Described fan outlet is passed straight back to VOCs exhaust gas source or is connected with FAI Fresh Air Intake end pipeline, promotes treatment effeciency.
Above-mentioned organic solvent collecting device is solvent separating tank, solvent tank or solvent equipment for purifying.
In view of zero-emission characteristic, the present invention can be at waste gas after filtering or filtering cooling in implementation process, one
Point waste gas, without organic matter treating apparatus, is passed directly to " air compensating device " front or be passed directly to " air quality adjusting means "
Before, thus promote treatment effeciency.
In implementation process
Embodiment 1
Refer to shown in Fig. 1, the VOCs exhaust treatment system of the present embodiment 1, including for removing at the Organic substance of VOCs
Reason device 2, blower fan 3 and tail gas recycle pipeline 4, described organic matter treating apparatus 2 is existing absorption absorption method, adsorbs back
The one or more of which device that receipts method, condensation absorption method, burning method, catalytic burning method, plasma method or bioanalysis are used
Combination.
Described organic matter treating apparatus 2 and tail gas recycle pipeline 4 are sequentially connected with, the air inlet of described organic matter treating apparatus 2
The outlet side of end and tail gas recycle pipeline 4 is connected with VOCs exhaust gas source 5 respectively, described VOCs exhaust gas source 5, organic matter treating apparatus
2 and tail gas recycle pipeline 4 form a closed loop (scheme for exhaust gas circulation system), described blower fan 3 is arranged on described closed circulation
On loop.
Described VOCs exhaust gas source 5, can be equipment or the place, such as paint spray booth, drying room, tank arbitrarily producing VOCs waste gas
Wait equipment between entrucking, cloth coating, artificial leather coating, adhesive article gluing, apply, print, reel off raw silk from cocoons, the equipment production line such as calendering
And the place such as the workshop at place.It is to say, VOCs exhaust treatment system provided by the present invention and processing method, can
To be applied to equipment or the place of any generation VOCs waste gas.In processing procedure, produced by VOCs exhaust gas source 5, waste gas is closing
Close and closed circuit is circulated flowing, and reduce and be discharged in external environment.In VOCs exhaust gas source 5, pollutant can also be set
Pretreatment unit, is used for removing exhaust gas such as particulate matter expansion chamber, outlet port defecator, water screen apparatus, water shower device etc.
The facility of pollutant, and the regulation waste gas such as chiller, heater is more convenient for the facility of subsequent treatment.
Described blower fan 3 can arrange one or more, as long as the position of setting is on closed loop.
Continuing referring to shown in Fig. 1, the VOCs waste gas processing method of the present embodiment 1 is as follows:
1, waste gas VOCs exhaust gas source 5 produced introduces in organic matter treating apparatus 2, at Organic substance by blower fan 3
The methods such as the absorption and sorption of reason device 2 or burning (include absorbing absorption method, absorption absorption method, condensation absorption method, burning method, urging
Change burning method, plasma method and bioanalysis) process after, a large amount of VOCs contained in waste gas are removed, by absorbing or absorption side
The organic solvent that formula is collected can carry out reclaiming and subsequent treatment by organic solvent collecting device 7, and described organic solvent is collected
Device 7 can be solvent separating tank or solvent tank, it is possible to is solvent equipment for purifying；
3, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, returns to VOCs waste gas under the effect of blower fan 3
Source 5 is circulated the high concentration VOCS waste gas replaced out in exhaust gas source.
Knowable to foregoing description, the beneficial effects of the present invention is: achieve the zero-emission of VOCs waste gas, solve existing useless
Gas Treatment process is difficult to the discharge standard requirement reaching to improve constantly, and completely eliminates the VOCs waste gas exhaust emission to environment；
Whole processing procedure is simple to operation, treatment effeciency is high, equipment needed thereby is few, and equipment energy consumption is low, well meets modern enterprise
To energy-saving and emission-reduction, the requirement of raising productivity effect, to economizing on resources, minimizing cost is significant.
Further, according to each position requirement to the air-inlet condition such as wind speed, wind direction in VOCs exhaust gas source 5, such as spray paint
Room requires that the air inlet of distribution plenum can not affect jet velocity and the jet direction of spray gun, in order to avoid affecting lacquered surface film thickness
Uniformly, the present embodiment 1 is also provided with air-distribution device on the outlet side of tail gas recycle pipeline 4, the purpose of described air-distribution device,
Distributed wind speed and the airflow direction of each position when being to make tail gas access VOCs exhaust gas source 5 by air-distribution device, meet VOCs and give up
The requirement that in source of the gas 5, air-inlet condition and waste gas are replaced by each position.
Further, owing to gas exists certain negative pressuren zone or zone of positive pressure in whole exhaust treatment system, in order to right
The gas volume change that the condition such as pressure, temperature causes compensates, and the present embodiment 1 is in the outlet side of organic matter treating apparatus 2
And between VOCs exhaust gas source 5, it being additionally provided with air compensating device 8, described air compensating device 8 is by closed loop
It is passed through or discharges a certain amount of air, to alleviate or to eliminate present in whole exhaust treatment system because negative pressure or malleation cause sky
The problem of air volume change, it is ensured that system normal table ground runs.
Further, (such as spray the prescription of air is different due to different production technologies or the equipment of production
Japanning room has certain requirement with drying room to the temperature and humidity of air), the processing method of organic matter treating apparatus is different (such as locates
Reason method is absorption and sorption or burning) and the boiling point of organic solvent equal, in order to obtain more preferable exhaust-gas treatment effect,
Improving the operation stability of whole system and meet various processes or the requirement of the equipment of production, the present invention is also to VOCs waste gas
Processing system and processing method have made further improvement, below on the basis of embodiment 1, continue to enumerate embodiment and illustrate such as
Under.
Embodiment 2
When organic matter treating apparatus 2 is the absorbing recovery device including adsorption tanks, method for treating organic material is absorption
During VOCs:
Refer to shown in Fig. 2, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 2, also include inhaling
The adsorption system of attached absorption method, desorption system, condenser system and piece-rate system, and the adsorption tanks dehumidifying of the second blower fan 10, cooling
System.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying and leads to
Road, one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world
Logical.
Continuing referring to shown in Fig. 2, the VOCs waste gas processing method of the present embodiment 2 is as follows:
1, waste gas VOCs exhaust gas source 5 produced introduces in organic matter treating apparatus 2, at Organic substance by blower fan 3
After the adsorption treatment of reason device 2, VOCs contained in waste gas is removed in a large number, and the organic solvent collected by suction type can
Being reclaimed by organic solvent collecting device 7, described organic solvent collecting device 7 can be solvent separating tank, solvent tank
Or solvent purifying device；
In Organic substance processing procedure, owing to adsorption tanks temperature after being desorbed is higher, and there is water vapour, if
When the equipment of production (VOCs exhaust gas source 5) is adversely affected by temperature and humidity, then need by the second blower fan 10 adsorption tanks
Carrying out cooling and dehumidifying, the gas after cooling and dehumidifying is directly arranged in the air, is not back in VOCs exhaust gas source 5.
2, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source 5 produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, returns to VOCs waste gas under the effect of blower fan 3
Source 5 is replaced the high-concentration waste gas in exhaust gas source, discharges into row and goes VOCs process so that it is keep outside the high-concentration waste gas after replacement
The exhaust gas concentration in exhaust gas source region raises the most further.
Embodiment 3
When organic matter treating apparatus 2 is the organic matter treating apparatus 2 for absorbing or burn VOCs, method for treating organic material
During for absorbing or burning VOCs:
Can use VOCs exhaust treatment system as shown in Figure 1, processing method can refer to described in embodiment 1.
This embodiment 3 is with the difference of embodiment 2, does not include the second blower fan 10, because being used for absorbing or burning VOCs
The interrupted temperature of the organic matter treating apparatus 2 separating process process that do not haves absorption absorption method raise and the asking of water vapour
Topic, therefore without carrying out cooling down and removing water vapour.
Embodiment 4
When VOCs exhaust gas source 5 has particular/special requirement or organic matter treating apparatus 2 air quality out not to the quality of air
When adapting to exhaust gas source 5 to api request:
Refer to shown in Fig. 3, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 4, also include sky
Makings quantity regulating device 9.
Described air quality adjusting means 9 is arranged on outlet side and the air inlet of VOCs exhaust gas source 5 of organic matter treating apparatus 2
Between end, the specific requirement of air quality can be selected by described air quality adjusting means 9 according to VOCs exhaust gas source 5, than
As the temperature and humidity of air is required by VOCs exhaust gas source 5, then air quality adjusting means 9 can include air temperature modification list
Unit and/or air humidity regulation unit, through the regulation of air quality adjusting means 9, the gas making entrance VOCs exhaust gas source 5 is full
The foot VOCs exhaust gas source 5 prescription to air.
Continuing referring to shown in Fig. 3, the VOCs waste gas processing method of the present embodiment 4 is as follows:
1, waste gas VOCs exhaust gas source 5 produced introduces in organic matter treating apparatus 2, at Organic substance by blower fan 3
After the absorption and sorption of reason device 2 or burning disposal, a large amount of VOCs contained in waste gas are removed, by absorbing or suction type
The organic solvent collected can be reclaimed by organic solvent collecting device 7, and described organic solvent collecting device 7 can be molten
Agent separating tank, solvent tank or solvent equipment for purifying；
2, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source 5 produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, after the regulation of air quality adjusting means 9,
Under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Embodiment 5
When in the waste gas that VOCs exhaust gas source 5 produces containing coating cloud, dust, mist of oil or aerosol, such as VOCs waste gas
When source 5 is paint spray booth:
Refer to shown in Fig. 4, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 5, also include paint
Mist processing means 1, described paint mist treatment device 1 is arranged on outlet side and the organic matter treating apparatus 2 of described VOCs exhaust gas source 5
Between inlet end.
Refer to shown in Fig. 4, the VOCs waste gas processing method of the present embodiment 5 is as follows:
1, waste gas VOCs exhaust gas source 5 produced carries out coating cloud, dust, oil in introducing paint mist treatment device 1 by blower fan 3
Mist, the removal of aerosol process, and the waste residue obtained after process can be reclaimed by waste residue collection device 6；
2, the waste gas after processing enters in organic matter treating apparatus 2, through organic matter treating apparatus under the effect of blower fan 3
After the absorption and sorption of 2 or burning disposal, VOCs contained in waste gas is removed in a large number, is collected by absorption or suction type
Organic solvent can be reclaimed by organic solvent collecting device 7, described organic solvent collecting device 7 can be that solvent separates
Groove, solvent tank or solvent equipment for purifying；
3, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, returns to VOCs waste gas under the effect of blower fan 3
Source 5 is replaced the high-concentration waste gas in exhaust gas source, discharges into row and goes VOCs process so that it is keep outside the high-concentration waste gas after replacement
The exhaust gas concentration in exhaust gas source region raises the most further.
Described paint mist treatment device 1 can be separately provided, it is also possible to is incorporated in organic matter treating apparatus 2, as long as allowing useless
Gas processes through Organic substance after first passing through the process of coating cloud, dust, mist of oil or aerosol again.
Fig. 5 embodiment there is also waste gas after paint mist treatment device, be no longer pass through organic matter treating apparatus and directly return
Draw to air compensating device, so can promote treatment effeciency, be also a kind of process approach.
Embodiment 6
The EGT produced when VOCs exhaust gas source 5 is higher, when being drying room, baking oven such as VOCs exhaust gas source 5:
Refer to shown in Fig. 5, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 6, also included
Filter device 11 and chiller 12, described defecator 11 and chiller 12 are arranged on the outlet side of described VOCs exhaust gas source 5
And between the inlet end of organic matter treating apparatus 2.
Continuing referring to shown in Fig. 5, the VOCs waste gas processing method of the present embodiment 6 is as follows:
1, waste gas VOCs exhaust gas source 5 produced filters, subsequently into cold in introducing defecator 11 by blower fan 3
Radiator cooler 11 carries out cooling down (need not pass through this road refrigerating work procedure for low temperature waste gas)；
2, the waste gas after supercooling introduces in organic matter treating apparatus 2, through organic matter treating apparatus by blower fan 3 again
After the absorption of 2 or absorption, VOCs contained in waste gas is removed in a large number, by the organic solvent absorbed or suction type is collected
Can be reclaimed by organic solvent collecting device 7, described organic solvent collecting device 7 can be solvent separating tank, solvent storage
Tank or solvent equipment for purifying；
3, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, returns to VOCs waste gas under the effect of blower fan 3
Source 5 reuses.
Above-described embodiment 2 or 3 and embodiment 4 ~ 6 can combination in any, to adapt to the VOCs exhaust-gas treatment under different situations.Ratio
As being adsorption tanks when organic matter treating apparatus 2, and when VOCs exhaust gas source 5 has particular/special requirement to the quality of air, described VOCs gives up
Gas processing system, on the basis of embodiment 1, includes the second blower fan 10 and air quality adjusting means 9 simultaneously, and described VOCs gives up
Gas disposal method includes the cooling and dehumidifying step to adsorption tanks and air quality regulating step simultaneously.In order to be illustrated more clearly that this
Combined situation, is described in detail for embodiment 7 and embodiment 8 the most again, and other more combined situation can refer in like manner.
Embodiment 7
When organic matter treating apparatus 2 is the absorbing recovery device including adsorption tanks, and the matter that VOCs exhaust gas source 5 is to air
When amount has particular/special requirement:
Refer to shown in Fig. 6, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 7, also include
Two blower fans 10 and air quality adjusting means 9.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying and leads to
Road, one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world
Logical.
Described air quality adjusting means 9 is arranged between the outlet side of organic matter treating apparatus 2 and VOCs exhaust gas source 5,
The specific requirement of air quality can be selected by described air quality adjusting means 9 according to VOCs exhaust gas source 5, and such as VOCs gives up
The temperature and humidity of air is required by source of the gas 5, then air quality adjusting means 9 can include air temperature modification unit and/or
Air humidity regulation unit, through the regulation of air quality adjusting means 9, makes the gas of entrance VOCs exhaust gas source 5 meet VOCs
The exhaust gas source 5 prescription to air.
Continuing referring to shown in Fig. 6, the VOCs waste gas processing method of the present embodiment 7 is as follows:
1, waste gas VOCs exhaust gas source 5 produced introduces in organic matter treating apparatus 2, at Organic substance by blower fan 3
After the adsorption treatment of reason device 2, a large amount of VOCs contained in waste gas are removed, and the organic solvent collected by suction type can
Being reclaimed by organic solvent collecting device 7, described organic solvent collecting device 7 can be solvent separating tank, solvent tank
Or solvent equipment for purifying；
In Organic substance processing procedure, owing to adsorption tanks temperature in tank after being desorbed is higher, need cooling in time,
And there is water vapour, water vapour enters VOCs exhaust gas source 5 will affect its working environment, and it is unfavorable to cause, it is therefore desirable to by second
Blower fan 10 is passed through fresh air in the cooling and dehumidifying passage of adsorption tanks, the water cooling down adsorption tanks and taking away in adsorption tanks
Steam, the gas after cooling and dehumidifying is directly arranged in the air, is not back in VOCs exhaust gas source 5.
2, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source 5 produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, after the regulation of air quality adjusting means 9,
Under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Embodiment 8
When containing coating cloud in the waste gas that VOCs exhaust gas source 5 produces, organic matter treating apparatus 2 is the absorption including adsorption tanks
Retracting device, and when VOCs exhaust gas source 5 has particular/special requirement to the quality of air:
Refer to shown in Fig. 7, on the basis of embodiment 1, the VOCs exhaust treatment system of the present embodiment 5, also include paint
Mist processing means the 1, second blower fan 10 and air quality adjusting means 9.
Described paint mist treatment device 1 is arranged on the outlet side of described VOCs exhaust gas source 5 and the air inlet of organic matter treating apparatus 2
Between end.
Described second blower fan 10 is connected with the adsorption tanks of organic matter treating apparatus 2, adsorption tanks offers cooling and dehumidifying and leads to
Road, one end of described cooling and dehumidifying passage is connected with the second blower fan 10, and the other end of described cooling and dehumidifying passage is connected with the external world
Logical.
Described air quality adjusting means 9 is arranged between the outlet side of organic matter treating apparatus 2 and VOCs exhaust gas source 5,
The specific requirement of air quality can be selected by described air quality adjusting means 9 according to VOCs exhaust gas source 5, and such as VOCs gives up
The temperature and humidity of air is required by source of the gas 5, then air quality adjusting means 9 can include air temperature modification unit and/or
Air humidity regulation unit, through the regulation of air quality adjusting means 9, makes the gas of entrance VOCs exhaust gas source 5 meet VOCs
The exhaust gas source 5 prescription to air.
Continuing referring to shown in Fig. 7, the VOCs waste gas processing method of the present embodiment 8 is as follows:
1, waste gas VOCs exhaust gas source 5 produced carries out paint mist treatment in introducing paint mist treatment device 1 by blower fan 3, paint
The waste residue that mist obtains after processing can be reclaimed by waste residue collection device 6；
2, the waste gas after paint mist treatment enters in organic matter treating apparatus 2 under the effect of blower fan 3, processes through Organic substance
After the adsorption treatment of device 2, a large amount of VOCs contained in waste gas are removed, and the organic solvent collected by suction type can be led to
Cross organic solvent collecting device 7 to reclaim, described organic solvent collecting device 7 can be solvent separating tank, solvent tank or
Solvent equipment for purifying；
In Organic substance processing procedure, owing to adsorption tanks temperature in tank after being desorbed is higher, need cooling in time,
And there is water vapour, water vapour enters VOCs exhaust gas source 5 will affect its working environment, and it is unfavorable to cause, it is therefore desirable to by second
Blower fan 10 is passed through fresh air in the cooling and dehumidifying passage of adsorption tanks, the water cooling down adsorption tanks and taking away in adsorption tanks
Steam, the gas after cooling and dehumidifying is directly arranged in the air, is not back in VOCs exhaust gas source 5.
3, the tail gas after Organic substance processes comprises only the VOCs of trace, compared with the waste gas that VOCs exhaust gas source produces, and should
VOCs content contained in tail gas is negligible, can be considered fresh air, after the regulation of air quality adjusting means 9,
Under the effect of blower fan 3, return to VOCs exhaust gas source 5 reuse.
Fig. 7 embodiment there is also waste gas after paint mist treatment device, be no longer pass through organic matter treating apparatus and directly return
Draw to air compensating device, so can promote treatment effeciency, be also a kind of process approach.
In sum, the VOCs exhaust treatment system of present invention offer and processing method, not only achieve VOCs waste gas
Zero-emission, completely eliminates the VOCs waste gas exhaust emission to environment, meets modern enterprise and energy-saving and emission-reduction, raising are produced effect
The requirement of benefit, and the VOCs exhaust-gas treatment under being applicable to different situations, can obtain more preferable exhaust-gas treatment effect, improve whole
The operation stability of individual system and the job requirement of satisfied different VOCs exhaust gas source, possess market application foreground widely.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modify, all should belong to the covering scope of the present invention.
Claims (2)
1. a VOCs emission-control equipment, including VOCs exhaust gas source, for remove the organic matter treating apparatus of VOCs, blower fan,
And tail gas recycle pipeline, described organic matter treating apparatus be existing absorption absorption method, absorption absorption method, condensation absorption method,
The combination of the one or more of which device that burning method, catalytic burning method, plasma method or bioanalysis are used, its feature exists
In: described organic matter treating apparatus and tail gas recycle pipeline are sequentially connected with, the inlet end of described organic matter treating apparatus and VOCs
The Waste gas outlet pipeline of exhaust gas source connects, the outlet side of described tail gas recycle pipeline and the FAI Fresh Air Intake of VOCs exhaust gas source
End pipeline connects, and described VOCs exhaust gas source, organic matter treating apparatus and tail gas recycle pipeline form a closed loop, described
Blower fan is arranged on described closed loop, and described organic matter treating apparatus is also connected with organic solvent collecting device pipeline,
On described blower fan loop between VOCs exhaust gas source Waste gas outlet and organic matter treating apparatus inlet end, described tail gas returns
Closed tube road is provided with air compensating device, and described air compensating device passes through to be passed through in closed loop or air-out, with
Alleviate or eliminate present in whole loop because negative pressure or malleation cause the problem of changes in air volume, described air compensating device
And being additionally provided with air quality adjusting means between VOCs exhaust gas source, described air quality adjusting means includes air temperature modification
Unit and/or air humidity regulation unit, thus be adjusted selecting to the specific requirement of air quality according to VOCs exhaust gas source,
Being additionally provided with a paint mist treatment device between described VOCs exhaust gas source Waste gas outlet and fan air inlet, described paint mist treatment fills
Put the removal process that VOCs waste gas is carried out coating cloud, dust, mist of oil, aerosol, and the waste residue that will obtain after processing can pass through
The waste residue collection device being connected with its pipeline reclaims, between described VOCs exhaust gas source Waste gas outlet and fan air inlet also
Being disposed with a defecator and a chiller, described organic matter treating apparatus is the device using absorption absorption method, should
Device includes adsorption tanks, and described adsorption tanks offer cooling and dehumidifying passage, one end of described cooling and dehumidifying passage and the second wind
Machine connects, and the other end of described cooling and dehumidifying passage is connected with the external world, and described fan outlet also has a road directly and VOCs
Exhaust gas source FAI Fresh Air Intake end pipeline connects, and another road is directly connected with next device after striding across organic matter treating apparatus.
A kind of VOCs emission-control equipment the most according to claim 1, it is characterised in that: described organic solvent collecting device
For solvent separating tank, solvent tank or solvent equipment for purifying.
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| WO2020199145A1 (en) * | 2019-04-03 | 2020-10-08 | 罗建君 | Vocs waste gas treatment system |
| CN112452094B (en) * | 2020-10-27 | 2022-08-09 | 天津合荣钛业有限公司 | Rotary kiln lubricating grease waste gas recovery device |
| CN114149815A (en) * | 2021-12-03 | 2022-03-08 | 中钢集团天澄环保科技股份有限公司 | Delayed coking coke storage pool waste gas collecting and circulating treatment method |
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