CN106422622A - Pretreatment system and separation method for VOCs (volatile organic compounds) containing industrial paint mist - Google Patents
Pretreatment system and separation method for VOCs (volatile organic compounds) containing industrial paint mist Download PDFInfo
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- CN106422622A CN106422622A CN201610864437.9A CN201610864437A CN106422622A CN 106422622 A CN106422622 A CN 106422622A CN 201610864437 A CN201610864437 A CN 201610864437A CN 106422622 A CN106422622 A CN 106422622A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
- F23L15/00—Heating of air supplied for combustion
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Chemical Kinetics & Catalysis (AREA)
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
Abstract
A pretreatment system for VOCs (volatile organic compounds) containing industrial paint mist comprises an impeller paint mist filter device, an auxiliary collection paint mist gas source device, a paint mist collection device, a secondary filter device, a cyclone separator, a blower, and a heat exchanger; a VOCs inlet is connected with the impeller paint mist filter device, a gas outlet of the impeller filter device is connected to an inlet of the secondary filter device through a pipeline, an outlet of the secondary filter device is connected to an inlet of the cyclone separator, a gas outlet of the cyclone separator is connected to an inlet of the blower through a pipeline, an outlet of the blower is connected to the heat exchanger through a pipeline, the heat exchanger is also connected to the secondary filter device, and the lower portion of the impeller filter device is connected to the secondary filter device through an air chamber. The filtering process and the paint mist collecting process are well linked, VOCs gas can be efficiently purified, and filtration and purification residue is recycled to avoid secondary pollution.
Description
Technical field
The present invention relates to a kind of processing system of organic exhaust gas and separation method, especially a kind of VOCs containing industrial coating cloud
Pretreatment system and method, belong to environmental technology field.
Background technology
Coating cloud is a kind of complex mixture being widely present in spraying industry, and irrational spraying method or design are unreasonable
Spraying operating mode frequently can lead to substantial amounts of coating cloud；The generation of coating cloud not only causes a large amount of wastes of resource, but also to VOCs
The process of (organic mixed gas) brings certain difficulty；
Current spraying coating process uses more and more extensively in human lives, but spraying coating process can produce and in a large number environment be made
Become organic mixed gas (VOCs) of pollution, deepening continuously with economic globalization, China has become the manufacturing works in the world,
Adjoint VOCs yield after great economic benefit will remain high；Former by spraying technology, spraying method and spraying used
Expect the impact of different etc. factor, the VOCs gas that spraying space produces certainly will be with part coating cloud, the ratio of viscosities of coating cloud in addition
Larger, it is very easy to be attached to body surface and be inconvenient to remove；At present, more prevailing to low concentration VOCs both at home and abroad two kinds
Treating method is to burn, if directly being concentrated to it or being catalyzed burning, with place after catalysis burning or concentration again
The carrying out of reason, coating cloud will produce tremendous influence to follow-up VOCs catalyticing combustion process or concentration technology, substantially reduce at VOCs
Coating cloud in VOCs therefore is carried out separating and is to ensure that Subsequent secure, efficiently by reason efficiency, or even cause the stoppage in transit of equipment effectively
Process the necessary condition of VOCs.
For now, in line with the target of energy-saving and emission-reduction, the process processing coating cloud should account in terms of following three：
First of all, it is necessary to solve the separation problem of coating cloud and air-flow；Secondly it has to be possible to be reclaimed the coating cloud separated well
Using；Finally, the feature of environmental protection and the economy of handling process should also be considered.
In recent years, the separation for coating cloud and collection, the patent of Zhou little Can application《A kind of multi-stag coating cloud formula capturing device
And the method that trapping separated spray thing》, this invention provide a kind of multi-stag coating cloud capturing device and its applied dry type spraying
System, arranges the coating cloud capture unit of at least two types perpendicular to airflow direction in this coating cloud capturing device, coating cloud traps
Unit is the flow area that monolithic structure and each coating cloud capture unit cover air；The method can be greatly enhanced coating cloud
Capturing device is to the trapping carrying capacity of coating cloud and separating effect.
Separation for coating cloud and collection, the patent of Cai Qi et al. application《A kind of paint slag separation, regenerative system and method》,
A kind of this disclosure of the invention paint slag separates, regenerative system, and this system can turn waste into wealth, and also avoid secondary to environment
Pollution.
Although the coating cloud in VOCs can be filtered by foregoing invention well, the coating cloud capturing device of Zhou little Can invention is one
The product that secondary property uses, after coating cloud capturing device reaches the trapping receiving limit, needs to be replaced with new coating cloud capturing device, and
Could not be it is further proposed that being collected to coating cloud after filtration；Coating cloud process meeting is being collected in the invention of another aspect Cai Qi et al. application
Produce substantial amounts of waste water, and because the boiling point of VOCs is at 90 DEG C about, the VOCs in paint slag drying course, paint slag can be prior to
H2O volatilizees, and environment is caused with certain secondary pollution.
Content of the invention
For above-mentioned the deficiencies in the prior art, the invention provides one kind can efficiently remove, collect coating cloud system and side
Method.
For achieving the above object, the technical solution used in the present invention is：A kind of VOCs pretreatment system containing industrial coating cloud,
Divide including vane type paint mist filtering device, assisted collection coating cloud compressed air source unit, coating cloud collection device, two-stage filter, whirlwind
From device, pressure fan and heat exchanger, VOCs import is connected with vane type paint mist filtering device；Vane type filter gas outlet leads to
Piping is connected with two-stage filter entrance；Two-stage filter outlet is connected with cyclone separator entrance；Cyclonic separation
Device gas outlet is connected with fresh air inlet (FAI by pipeline；Pressure fan outlet is connected to heat exchanger by pipeline；Heat exchanger also with
Two-stage filter connects；Vane type filter bottom is passed through air compartment and is connected with two-stage filter；Assisted collection coating cloud gas
Source device includes pressure charging system and high pressure VOCs gas storage system, high pressure VOCs gas storage system one end and vane type paint mist filtering device
Connect, the other end is connected with pressure charging system.Pressure charging system is connected with two-stage filter.
Preferably, described vane type paint mist filtering device include filter chamber, high-speed driving motor, high pressure nozzle ring,
Impeller, mixing air compartment, clutch and high pressure air compartment；Impeller is connected with high-speed driving motor coaxle and is in filtration by clutch
In chamber；High pressure air compartment is connected with high pressure nozzle ring；High pressure VOCs gas storage system is connected with high pressure air compartment.Coating cloud collect outlet with
Coating cloud collection device is connected；Mixing air compartment is in the side of filter chamber.
Preferably, described high-speed driving motor speed is more than 3000r/min, enters before and after vane type paint mist filtering device
Gas, the mouth of pipe of giving vent to anger are provided with baffle plate.
Preferably, the lower end of described cyclone separator is provided with electronic discharge valve；Gas outlet in cyclone separator
Place's setting coating cloud concentrations detectors.
Preferably, it is provided with level-sensing device in coating cloud collection device, the import and export of two-stage filter and cyclone separator；
It is additionally provided with explosion proof door in coating cloud collection device.
Preferably, described two-stage filter includes the loosening system of bed and bed material regeneration system；Blow from connecting
The pipe-line system that pipeline between machine and heat exchanger leads to two-stage filter middle and lower part position constitutes the loosening system of bed；From even
The pipeline connecing heat exchanger and VOCs processing system leads to the pipe-line system on two-stage filter top and constitutes bed material regeneration system；With
As two grades of depth-type filtration bed, the pipeline of bed material regeneration system and the loosening system of bed also includes adjusting pelletized biomass
Door and check valve.
A kind of VOCs separation method containing industrial coating cloud, comprises the steps：A) adopt vane type filter to spraying
In VOCs mixed gas, graininess coating cloud is settled；B) through step A) settled after gas again pass through two-stage filter
Carry out depth-type filtration,；C) through step B) VOCs gas after depth-type filtration and small part bed particle together enter cyclonic separation
Device carries out gas solid separation；Further, the VOCs gas after filtration is discharged through cyclone separator top, completes to VOCs
The filtration of middle coating cloud；D) through step C) separate after gas enters heat transmission equipment after the pressurization of pressure fan and boiler carrys out heat smoke
Heat exchange, stand-by with hot-air as boiler combustion after heat exchange.
Preferably, C) step gas solid separation after, described bed particle is sent to two grades again by electronic discharge valve
Filter.
Preferably, A) in step, when the coating cloud on vane type filter impeller needs to collect, by high pressure VOCs
Pressure-air in gas storage system is gone out by the nozzle ring gas blowout of impeller periphery, forms a layer of air film, then starts at a high speed
Motor, high-speed electric expreess locomotive passes through the connection function impeller high-speed rotation of clutch, by the effect of centrifugal force by coating cloud from leaf
Come off on wheel, and be brought in the presence of high-speed compressed air in coating cloud collection device.
Filter process is collected process with coating cloud and is linked up by one aspect of the present invention well, and strict guarantee system exports gas
The concentration value of VOCs contained by body is steady state value in time, thus stablizing for follow-up VOCs processing system, efficient operation provides
Necessary condition；On the other hand high to coating cloud removal efficiency, flow resistance is little, and bed acquisition is convenient in addition, utilization rate is high, bed resistance
Power little and use after bed be easily processed, secondary pollution will not be produced；Finally, coating cloud collection is convenient, will not produce new dirt
Dye, and greatly reduce the probability that coating cloud adheres to wall, achieve coating cloud to a great extent and be recycled.
Compared with traditional paint mist treatment mode, the invention has the advantages that：
(01) this system operatio is simple, easy to maintenance, and one-level is settled using vane type, and two grades are carried out using fixed bed
Filter, coating cloud removal efficiency is high；
(02) this system adopts cascade filtration mode, substantially reduces the load of cascade filtration bed, thus improving bed
Service life；
(03) this system coating cloud rate of recovery is high, and about more than 70% coating cloud can recycling, fraction then and
Bed mixed burning is processed；
(04) this system impeller type filter is driven using high-speed electric expreess locomotive during coating cloud collection, but in normal work
When marquis only rely on the air impingement blade of flowing and rotate, thus more save power consumption；
(05) in filter, coating cloud collects process using compressed air by the coating cloud particle picking-up of the wall that flies to, and can effectively keep away
Exempt from coating cloud and be bonded at peripheral wall surface；
(06) cascade filtration bed first half term is in the slow folding process of monoblock type for fixed bed, contributes to being sufficiently heated so that
Obtain bed material regeneration；It is in fluidized state in the second half, increase the porosity of bed, reduce filtration resistance；
(07) in cascade filtration bed, biomass density is relatively small, abundance, compares fossil fuel and is easier to fluidize,
Effectively reduce power consumption；And living beings are not easy to wear in fluid mapper process, the fine particle of generation greatly reduces, convenient separation；
(08) long-time use after can be used in concentrated combustion with coating cloud bed and process, compare traditional processing mode
Processing cost can be reduced greatly and improve capacity usage ratio；
(09) fluid-mixing being not readily separated is changed into segregative Gas-solid Two-phase Flow by this system effectively, from two grades
The part bed particle that filter out brings out can be efficiently separated by cyclone separator, settle；
(10) this device exports the partial high pressure VOCs mixed gas drawn as the loosening wind of bed using from pressure fan
And fluidized wind, it is to avoid introduce fresh air and increase new blower fan, reduce power consumption and noise；
(11) this system can introduce a part from the VOCs air-flow after heat exchanger and use as bed material regeneration gas；Can have
Effect makes organic matter depth in the coating cloud of adhesion in bed volatilize and can be dried bed well, it is to avoid bed is tied
Block, bridging cause flow resistance excessive；
(12) directly to the low concentration VOCs gas compression storage after filtering as the gas source of assisted collection coating cloud it is ensured that
During coating cloud collects process and filter process, the VOCs concentration value through filtration system output maintains in a stability range, is
The stable operation of follow-up VOCs processing system provides necessary condition；
(13) coating cloud in spraying space can be carried out separating by this system effectively, does not need to add extra molten
Agent, had both ensured that VOCs exit concentration remained constant substantially during coating cloud is collected, had reduced processing cost again, can't be to ring
Secondary pollution is caused in border；
Brief description
Fig. 1 is the structural representation of VOCs pretreatment system of the present invention.
Fig. 2 is the structural representation of vane type paint mist filtering device.
In figure：：1- vane type filter；2- two-stage filter；3- cyclone separator；4- pressure fan；5- heat exchange
Device；6- pressure charging system；7- high pressure VOCs gas storage system；8- coating cloud collection device；S1- vane type filter inlet baffle；S2-
Vane type filter outlet damper；S3- vane type filter coating cloud collection device gases at high pressure outlet damper；CA- flywheel
Device；FM- high-speed driving motor；The electronic discharge valve of MV-；TV1～TV5, TV11, TV12- regulating valve；AV～AV4 non-return valve；P1
～P6, P11, P12- pipeline；A- air compartment；B- high pressure nozzle ring；C:- coating cloud collects outlet；High pressure after the collection of D- coating cloud
VOCs mixing air compartment；W- impeller；H- filter chamber.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work
Embodiment, broadly falls into the scope of protection of the invention.
As shown in Figure 1：A kind of VOCs pretreatment system containing industrial coating cloud, including vane type paint mist filtering device 1, auxiliary
Collect coating cloud compressed air source unit, coating cloud collection device 8, two-stage filter 2, cyclone separator 3, pressure fan 4 and heat exchanger 5,
VOCs import is connected with vane type paint mist filtering device 1；Pipeline and two-stage filter are passed through in vane type filter 1 gas outlet
2 entrances are connected；Two-stage filter 2 is exported and is connected with cyclone separator 3 entrance；Pipe is passed through in cyclone separator 3 gas outlet
Road is connected with pressure fan 4 import；Pressure fan 4 outlet is connected to heat exchanger 5 by pipeline；Heat exchanger 5 also with two-stage filter 2
Connect；Vane type filter 1 bottom is passed through air compartment A and is connected with two-stage filter 2；Assisted collection coating cloud compressed air source unit includes
Pressure charging system 6 and high pressure VOCs gas storage system 7, high pressure VOCs gas storage system 7 one end is connected with vane type paint mist filtering device 1,
The other end is connected with pressure charging system 6.Pressure charging system 6 is connected with two-stage filter 2.Pressure fan 4 is frequency conversion fan, enables the system to
Enough adapt to load variations needs, reduce power consumption
As shown in Figure 2：Described vane type paint mist filtering device includes filter chamber H, high-speed driving motor FM, high pressure annular
Nozzle B, impeller W, coating cloud collect after high pressure VOCs mixing air compartment D, the high pressure VOCs air compartment A after clutch and filtration；Impeller W
Coaxially it is connected with high-speed driving motor FM by clutch and be in filter chamber H；High pressure VOCs air compartment A after filtration and high pressure
Nozzle ring B is connected；High pressure VOCs gas storage system 7 is connected with the high pressure VOCs air compartment A after filtration.Coating cloud collects outlet and coating cloud
Collection device 8 is connected；High pressure VOCs mixing air compartment D after coating cloud collection is in the side of filter chamber H.
Described high-speed driving motor speed is more than 3000r/min, air inlet before and after vane type paint mist filtering device, gives vent to anger
The mouth of pipe is provided with baffle plate S1 and S2.
The lower end of described cyclone separator 3 is provided with electronic discharge valve MV；Set at the gas outlet of cyclone separator 3
Put coating cloud concentrations detectors.
It is provided with level-sensing device in coating cloud collection device 8, the import and export of two-stage filter 2 and cyclone separator 3；Coating cloud
It is additionally provided with explosion proof door in collection device, each respective line of system also should arrange pressure gauge, regulating valve and non-return valve；.
Described two-stage filter 2 includes bed and loosens system and bed material regeneration system；Lead to from fan outlet pipeline
Cross pipe-line system to be connected with two-stage filter, for loosening to bed；Pass through pipeline system from the pipeline of heat exchanger exit
System is connected with two-stage filter it is ensured that the porosity of the regeneration of bed and increase bed；From connection pressure fan and heat exchanger
Between pipeline lead to two-stage filter middle and lower part position pipe-line system constitute bed loosen system；From connect heat exchanger and
The pipe-line system that the pipeline of VOCs processing system leads to two-stage filter top constitutes bed material regeneration system；With being molded living beings
As two grades of depth-type filtration bed, the pipeline that bed material regeneration system and bed loosen system also includes adjusting door and unidirectional to particle
Valve.
A kind of VOCs separation method containing industrial coating cloud, comprises the steps：A) adopt vane type filter to spraying
In VOCs mixed gas, graininess coating cloud is settled；B) through step A) settled after gas again pass through two-stage filter
Carry out depth-type filtration C) through step B) VOCs gas after depth-type filtration and small part bed particle together enter cyclonic separation dress
Put and carry out gas solid separation；Further, the VOCs gas after filtration is discharged through cyclone separator top, completes in VOCs
The filtration of coating cloud；D) through step C) separate after gas enter heat transmission equipment after the pressurization of pressure fan and carry out heat smoke with boiler and change
Heat, stand-by with hot-air as boiler combustion after heat exchange.C) after the gas solid separation of step, described bed particle passes through electronic unloading
Material valve is sent to two-stage filter again.
A) in step, when the coating cloud on vane type filter impeller needs to collect, by high pressure VOCs gas storage system
Pressure-air in system is gone out by the nozzle ring gas blowout of impeller periphery, forms a layer of air film, then starts high-speed electric expreess locomotive, high
Speed motor passes through the connection function impeller high-speed rotation of clutch, by the effect of centrifugal force, coating cloud is de- from impeller
Fall, and be brought in the presence of high-speed compressed air in coating cloud collection device.
Spray VOCs gas through import air inlet vane type filter as shown in Figure 1, between impeller
Coating cloud granular in mixed gas is settled by collision effect；Gas after filtering through vane type filter is passed through again
Two-stage filter carries out the VOCs gas after depth-type filtration removes coating cloud and small part bed particle together enters cyclonic separation
Device carries out gas solid separation；Solid bed is sent to two-stage filter again by electronic discharge valve；VOCs gas after filtration
Body is discharged through cyclone separator top, completes the filtration to coating cloud in VOCs；VOCs gas after separated is through pressure fan
Pressurization after enter heat transmission equipment heat exchange, finally enter back into VOCs burned waste gas processing system；Shaping in two-stage filter
Wood pellet bed also should include drawing a part for carrying out to bed loosening work from the export pipeline of blower fan by pipeline P1
With；On the other hand also should include being used as working portion filtration bed heating again from heat exchanger exit by a pipeline P2 extraction part
Life is using so that the coating cloud in bed is constantly dried in the slow cyclic process of bed and so that the VOCs depth in coating cloud is analysed
Go out；VOCs pressure charging system and high pressure VOCs gas storage system are opened during VOCs is filtered, and connect from the pipeline of pressure fan outlet
Meet a P3 extraction fraction VOCs to be stored and pressurize, collecting process for coating cloud provides sufficient high pressurized gas；Right
During the bulk coating cloud that impeller settles down carries out abjection process, VOCs pressure charging system and high pressure VOCs gas storage system stop work
Make.
When coating cloud on impeller needs to collect, close import and export baffle plate S1, S2 of vane type filter, open
The baffle plate S3 on the passage of two-stage filter inlet ductwork for the coating cloud collection device, opens the outlet valve TV5 on pipeline P5, high
Air is sprayed by pressure air by the nozzle ring of impeller periphery, forms a layer of air film；Start high-speed electric expreess locomotive FM further, high
Speed motor FM by the connection function impeller W high-speed rotation of flywheel CA, by the effect of centrifugal force by coating cloud from impeller
Come off, the air film prevention of formation is thrown away the coating cloud particle coming from impeller and contacted with wall and carried in the presence of pressure-air
To coating cloud collection device.
After coating cloud is collected and is finished, closing high-speed motor FM, it is gradually opened vane type filter outlet damper S2, gradually
Close the baffle plate S3 on the passage of two-stage filter inlet ductwork for the coating cloud collection device；Slowly open vane type mistake further
Filter device inlet baffle S1, gradually turns down the valve TV5 to vane type filter pipeline P5 for the compressed air；System is by coating cloud
Collection process returns to VOCs filter process；Treat two-stage filter bed pressure drop after being increased to regulation it should slowly orderly
Ground carries out the replacing of bed, to ensure that bed resistance in prescribed limit and effectively removes coating cloud；The process of spraying industrial coating cloud
VOCs gas filtration, coating cloud collect, arrive again VOCs gas filtration, arrive again coating cloud collection during Infinite Cyclic complete.
Claims (10)
1. a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Receive including vane type paint mist filtering device, auxiliary
Collection coating cloud compressed air source unit, coating cloud collection device, two-stage filter, cyclone separator, pressure fan and heat exchanger, VOCs import
It is connected with vane type paint mist filtering device；Vane type filter gas outlet is connected with two-stage filter entrance by pipeline；
Two-stage filter outlet is connected with cyclone separator entrance；Pipeline and fresh air inlet (FAI are passed through in cyclone separator gas outlet
It is connected；Pressure fan outlet is connected to heat exchanger by pipeline；Heat exchanger is also connected with two-stage filter；Vane type filter
It is connected with two-stage filter by air compartment；Assisted collection coating cloud compressed air source unit includes pressure charging system and high pressure VOCs gas storage system
System, high pressure VOCs gas storage system one end is connected with vane type paint mist filtering device, and the other end is connected with pressure charging system, pressure charging system
It is connected with two-stage filter.
2. as claimed in claim 1 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Described vane type
Paint mist filtering device includes filter chamber, high-speed driving motor, high pressure nozzle ring, impeller, mixing air compartment, clutch and high-pressure blast
Room；Impeller is connected with high-speed driving motor coaxle and is in filter chamber by clutch；High pressure air compartment and high pressure nozzle ring
It is connected；High pressure VOCs gas storage system is connected with high pressure air compartment, and coating cloud is collected outlet and is connected with coating cloud collection device；At mixing air compartment
Side in filter chamber.
3. as claimed in claim 2 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：, described high speed
Motor rotating speed is more than 3000r/min.
4. as claimed in claim 1 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Described vane type paint
Before and after mist filter, air inlet, the mouth of pipe of giving vent to anger are provided with baffle plate.
5. as claimed in claim 1 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Described whirlwind divides
It is provided with electronic discharge valve from the lower end of device；Coating cloud concentrations detectors are set at the gas outlet of cyclone separator.
6. as claimed in claim 1 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Collect dress in coating cloud
Put, be provided with level-sensing device in the import and export of two-stage filter and cyclone separator；It is additionally provided with explosion proof door in coating cloud collection device.
7. as claimed in claim 1 a kind of VOCs pretreatment system containing industrial coating cloud it is characterised in that：Two grades of described mistakes
Filter device includes bed and loosens system and bed material regeneration system；Lead to two from connecting the pipeline between pressure fan and heat exchanger
The pipe-line system of level filter middle and lower part position constitutes bed and loosens system, is the pelletized biomass in two-stage filter
Fluidisation is provided to loosen wind；Constitute bed material regeneration system from connecting the pipe-line system to two-stage filter top for the heat exchanger；With becoming
As two grades of depth-type filtration bed, the pipeline of bed material regeneration system and the loosening system of bed also includes adjusting door type biological particles
And check valve.
8. a kind of VOCs separation method containing industrial coating cloud it is characterised in that：Comprise the steps：A) vane type is adopted to filter dress
Put and graininess coating cloud in spraying VOCs mixed gas is settled；B) through step A) settled after gas again pass through two grades
Filter carries out depth-type filtration；C) through step B) the bed particle one that is carried of VOCs gas after depth-type filtration and small part
Carry out gas solid separation with entering cyclone separator；VOCs gas after filtration, purification is discharged through cyclone separator top,
Complete the filtration to coating cloud in VOCs and purification；D) through step C) separate after gas enter heat exchange after the pressurization of pressure fan and set
For carrying out heat smoke heat exchange with boiler, stand-by with hot-air as boiler combustion after heat exchange.
9. as claimed in claim 8 a kind of VOCs separation method containing industrial coating cloud it is characterised in that：B) two grades of mistakes of step
In filter device, loosen under wind action in fluidisation, pelletized biomass becomes fluidized state in two-stage filter；C) step
After rapid gas solid separation, described bed particle is sent to two-stage filter again by electronic discharge valve.
10. as claimed in claim 8 a kind of VOCs separation method containing industrial coating cloud it is characterised in that：A) in step, in leaf
When coating cloud on wheeled filter impeller needs to collect, the pressure-air in high pressure VOCs gas storage system is passed through impeller
The nozzle ring gas blowout of periphery goes out, and forms a layer of air film, then starts high-speed electric expreess locomotive, the connection by clutch for the high-speed electric expreess locomotive
Coating cloud is come off from impeller by effect impeller high-speed rotation by the effect of centrifugal force, and the work in high-speed compressed air
With under be brought in coating cloud collection device.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107456807A (en) * | 2017-09-13 | 2017-12-12 | 深圳市科德环保科技有限公司 | UV coating clouds separate eliminating equipment |
| CN108114564A (en) * | 2017-12-27 | 2018-06-05 | 江苏海岸药业有限公司 | A kind of bottle washing machine moisture separator |
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| CN106422622B (en) | 2018-11-13 |
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