CN106621669A - Waste gas treatment method for recycling paint mist - Google Patents
Waste gas treatment method for recycling paint mist Download PDFInfo
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- CN106621669A CN106621669A CN201710000430.7A CN201710000430A CN106621669A CN 106621669 A CN106621669 A CN 106621669A CN 201710000430 A CN201710000430 A CN 201710000430A CN 106621669 A CN106621669 A CN 106621669A
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- paint
- waste gas
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- mist
- atomization
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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
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Abstract
The invention provides a waste gas treatment method for paint mist recovery, which comprises the use of an atomization absorption device, wherein the atomization absorption device comprises an air inlet, an air outlet, a mist making device and a treatment cavity, the air inlet is connected with an external waste gas discharge port, the mist making device makes liquid mist by oleophylic paint atomization liquid and sends the liquid mist into the treatment cavity or forms the liquid mist in the treatment cavity, the oleophylic paint atomization liquid is paint thinner or oleophylic paint material, when paint mist waste gas enters the treatment cavity, paint mist particles are contacted with the oleophylic paint atomization liquid mist and form large-particle-size adhesive colloidal particles, the colloidal particles are separated from the waste gas under the action of gravity or inertia force including centrifugal force to form paint liquid which can be extracted or flow out, the paint liquid is collected and recovered by a collection device of the atomization absorption device, and the treated waste gas is discharged from the air outlet or sent to a subsequent treatment process for continuous treatment; the invention improves the contact action surface and action time of the recovery device to paint mist liquid drops through atomization treatment, and can effectively improve the treatment effect of waste gas and the recovery efficiency of paint mist.
Description
Technical field
The present invention relates to environment protection treating technical field, the waste gas processing method that especially a kind of coating cloud is reclaimed.
Background technology
In the occasion of various use spraying paints, such as container, automobile and other plant equipment Workplaces, in its spraying paint
To produce in a large number containing paint particle and dust in operation, it is if being directly discharged in air without process, severe contamination is big
Compression ring border, damages health, and its coating cloud granule is not added with recycling, then cause the waste for painting precious resources.Due to paint
Mist granule is small, viscosity is big, easy-adhesion material surface, and it is low that traditional coating cloud particle disposal method has a coating cloud intercepting efficiency, place
Reason not thoroughly, causes to block adsorbent space during follow-up VOCs waste gas purifications, reduces sorbent life；The coating cloud or paint slag of interception
Paint can not be directly reclaimed, causes cost recovery high, even directly burning for having causes the wasting of resources and generation secondary pollution etc..
The existing common processing method to coating cloud is to be filtered with filtrate or water pouring method, and the shortcoming of both approaches is
Little with the action by contact face of coating cloud drop, action time is short, therefore interception filter efficiency is low, to reach good interception result past
Toward needing larger cost, and traditional spray column easily produces contaminated wastewater except coating cloud, how to solve these problems, is one
Individual research direction.
The content of the invention
The present invention proposes the waste gas processing method that a kind of coating cloud is reclaimed, and retracting device is lifted to coating cloud by atomization process
The action by contact face of drop and action time, can effectively lift the treatment effect of waste gas and the organic efficiency of coating cloud.
The present invention is employed the following technical solutions.
Including the use of atomization absorption device in the waste gas processing method that a kind of coating cloud is reclaimed, the waste gas processing method,
The atomization absorption device includes air inlet, gas outlet, mist device processed and processing chamber, the air inlet and external exhaust gas floss hole
It is connected, the mist device processed sends into processing chamber or forms liquid mist, the parent intracavity is processed with close paint atomizing liquid manufacture liquid mist
Paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the coating cloud granule in waste gas with
Oleophylic paint liquid mist contacts and is formed the viscosity colloidal particle of big particle diameter, and colloidal particle is in gravity or including used including centrifugal force
Property power in the presence of separate from waste gas, form the paint liquid that can extract out or flow out, paint liquid is atomized the collection device of absorption plant
Collect and reclaim, the waste gas Jing gas outlets Jing after atomization process are discharged or deliver to subsequent treatment operation and continue with.
The atomization absorption device can be filled by installing turbulator additional inside device or by installing thick interception additional in air inlet
Put to strengthen coating cloud absorbability；The thick blocking apparatus include the coarse filtration of deflection plate, cyclone dust extractor or built-in filter packing
Structure；The turbulator is used to make the waste gas for entering processing chamber form turbulent flow to lift the cohesion speed of coating cloud granule in waste gas,
Set paint thinner spray equipment in turbulator or thick blocking apparatus to strengthen the mobility of the paint liquid separated from waste gas.
The deflection plate includes V-type deflection plate or labyrinth type deflection plate or spiral spiral board.
The oleophylic paint liquid mist is with paint thinner or oleophylic paint material（Such as thinner or water paint aqueous solution）For
Material makes.
The waste gas processing method is divided into following steps by waste gas flow direction.
A1, the waste gas of paint spray booth are withdrawn and delivered to atomization absorption device.
A2, the mist device processed send into processing chamber or form liquid mist intracavity is processed with close paint atomizing liquid manufacture liquid mist,
The close paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the coating cloud in waste gas
Granule is contacted with oleophylic paint liquid mist and forms the viscosity colloidal particle of big particle diameter, and colloidal particle exists in gravity or including centrifugal force
Separate from waste gas in the presence of interior inertia force, form the paint liquid that can be extracted out or flow out, paint liquid is further processed into recovery
Paint is re-used, or again as oleophylic paint atomized liquid for the reuse of atomization absorption device.
A3, the waste gas of discharge atomization absorption device directly discharge or enter later process；Waste gas is regarded between follow-up each procedure
Mobility status, the optional blower fan that sets pressurizes to overcome exhaust flow impedance to waste gas.
A4, waste gas are further filtered under Action of Wind pressure by paint-fog filter.
A5, the waste gas Jing after paint-fog filter process enter atomization postprocessing working procedures and continue with.
Paint-fog filter, filtering bodies and filtering bodies cleaning device, the coating cloud mistake are provided with the atomization postprocessing working procedures
It is provided with exhaust steam passage in filter to be connected with the gas outlet of atomization absorption device, the filtering bodies are logical located at waste gas in extensible mode
In road, filtering bodies are with the material molding insoluble in paint solvent；When waste gas passes through exhaust steam passage, the coating cloud particulate matter in waste gas
Filtered and stayed in and formed in filtering bodies paint particle by filtering bodies；The filtering bodies are substituted and were sent into by fixed frequency timing
Filter body cleaning device is cleaned to recover the filter capacity of filtering bodies, and waste gas after filtering is discharged from the outlet of exhaust steam passage.
When filtering bodies are cleaned in filtering bodies cleaning device, filtering bodies cleaning device is cleaned with paint solvent and dissolved
Paint particle in filtering bodies, makes paint particle become paint solution.
The paint solution that the filtering bodies cleaning device is generated is admitted to paint room and allocates to realize reclaiming with fresh paint, or
It is to be admitted to after short oil varnish processing meanss are concentrated to be recycled.
The exit of the paint-fog filter exhaust steam passage is provided with detection means, and the waste gas component measured when detection means is not
When meeting discharge standard, the waste gas that Jing exhaust steam passages are discharged is sent back to atomization absorption device and is processed again again.
When the waste gas component that detection means is measured meets discharge standard, the direct row up to standard of waste gas that Jing exhaust steam passages are discharged
Put or directly return paint spray booth cyclical breathing, or through VOCs be emitted into the external world or paint spray booth again, or again by fine mistake
Filter is filtered again to the fine particle in waste gas.
The filtering bodies handle flowing mode or mechanical mode of movement sends into the cleaning of filtering bodies cleaning device；The machinery conveying
Mode includes one or more in the conveying of drawer-type movable, chain conveying, netted conveying and crawler type, by continuous conveying or
The mode circulation conveying filtering bodies of intermittent delivery.
The use of the atomization absorption device includes the used aloned mode to atomization absorption device or multiple is applied in combination
Mode, the plurality of mode that is applied in combination is that multiple atomization absorption devices are combined as atomization absorption array, the atomization absorption
The compound mode of the atomization absorption device in array includes series connection and parallel connection.
In the present invention, including the use of atomization absorption device, the atomization absorption device bag in the waste gas processing method
Air inlet, gas outlet, mist device processed and processing chamber are included, the air inlet is connected with external exhaust gas floss hole, the mist device processed
Processing chamber is sent into close paint atomizing liquid manufacture liquid mist or liquid mist is formed intracavity is processed, the close paint atomizing liquid is dilute for paint
Agent or oleophylic paint material are released, when coating cloud waste gas enters processing chamber, the coating cloud granule in waste gas is contacted simultaneously with oleophylic paint liquid mist
Form the viscosity colloidal particle of big particle diameter, colloidal particle in gravity or including the inertia force including centrifugal force in the presence of from waste gas
Middle separation, forms the paint liquid that can be extracted out or flow out；The atomization absorption device can be by installing turbulator or logical additional inside device
Cross and install thick blocking apparatus additional to strengthen coating cloud absorbability in air inlet；The design reduces waste gas flow velocity by turbulator, and
Come with oleophylic paint liquid mist and coating cloud waste gas interact, the waste gas of paint spray booth Jing after blower fan introduces atomization absorption device, waste gas
In a large amount of coating cloud microparticles and device in atomized liquid between be fully contacted, condense and absorb, fine coating cloud granule Jing and parent
The atomized liquid of paint forms glue of the particle diameter more than 5 m high viscosities after contacting, collide, condense and absorb in the presence of turbulent flow
Grain, these colloidal particles in the presence of gravity and inertia force, after separating and collect with air in atomization absorption device first, by
Discharging pumped voluntarily flows out by gravity, and the first time for realizing coating cloud reclaims；Due to the oleophylic paint in oleophylic paint liquid mist
Liquid is in the form of droplets, so as to greatly improve the action by contact area between recovery process and coating cloud waste gas, and due to turbulator
The flow velocity of waste gas is reduced, so as to improve the time of contact between recovery process and coating cloud waste gas, when the paint liquid microdroplet in waste gas
After being combined with oleophylic paint liquid mist drop, paint liquid droplet particle becomes big, forms good so as to more absorb oleophylic paint liquid mist
Property circulation, effectively improve the organic efficiency of coating cloud；Simultaneously after atomization process, even if it is micro- still to remain coating cloud in waste gas
Drop, its droplet size also can generally be increased, and compared with conventional process mode, is atomized the coating cloud waste gas after processing and is easier quilt
Intercept and filter, be conducive to further process of the subsequent handling to coating cloud.
In the present invention, the atomization absorption device can be by installing turbulator additional or by installing additional in air inlet inside device
Thick blocking apparatus are strengthening coating cloud absorbability；The thick blocking apparatus are filled out including deflection plate, cyclone dust extractor or built-in filtration
The coarse filtration structure of material；The turbulator is used to make the waste gas for entering processing chamber form turbulent flow to lift the solidifying of coating cloud granule in waste gas
Set paint thinner spray equipment in poly- speed, turbulator or thick blocking apparatus to strengthen the paint liquid separated from waste gas
Mobility；The design can make the bulky grain paint liquid that turbulator is intercepted be in flow regime, it is to avoid block rapids because paint liquid is dry
Stream device, is also beneficial to the recovery that the device intercepts paint liquid.
In the present invention, in the atomization postprocessing working procedures paint-fog filter, filtering bodies and filtering bodies cleaning device, institute are provided with
State and exhaust steam passage is provided with paint-fog filter is connected with the gas outlet of atomization absorption device, the filtering bodies are set in extensible mode
In exhaust steam passage, filtering bodies are with the material molding insoluble in paint solvent；When waste gas passes through exhaust steam passage, the paint in waste gas
Mist particulate matter is filtered and stayed in and formed in filtering bodies paint particle by filtering bodies；The filtering bodies are substituted by fixed frequency timing
And send into filtering bodies cleaning device and clean to recover the filter capacity of filtering bodies, the outlet of waste gas after filtering from exhaust steam passage
Discharge；The filtering bodies handle flowing mode or mechanical mode of movement sends into the cleaning of filtering bodies cleaning device；The machinery conveying side
Formula include drawer-type movable, chain conveying, netted conveying and crawler type conveying in one or more, by continuous conveying or
Have a rest the mode circulation conveying filtering bodies of conveying；This has been designed with secondary interception, due to the drop Jing after atomization process, in coating cloud
Become large-sized, it is easier to intercept, therefore using the interception way of recycling of filtering type, can be lifted while treatment effect is kept
Exhaust-gas treatment speed, and the design allows the filter material of retracting device to be multiplexed, and has both saved cost, also causes the filtration of filter material
Interdiction capability can keep for a long time, be conducive to lifting the disposal ability of retracting device.
In the present invention, when filtering bodies are cleaned in filtering bodies cleaning device, filtering bodies cleaning device is with paint solvent
Paint particle in cleaning and dissolution filter body, makes paint particle become paint solution；What the filtering bodies cleaning device was generated
Paint solution is admitted to paint room and fresh paint and allocates to realize reclaiming, or is admitted to after short oil varnish processing meanss are concentrated
It is recycled；Paint is directly used in when the paint concentration of the paint liquid of the recovery of atomization absorption device is high be back to spray painting,
When the paint concentration for painting liquid is low then as the oleophylic paint liquid mist materials'use of atomization absorption device, the return Jing after atomization is processed
Chamber is absorbed again facilitates subsequent use to improve the concentration for collecting material；The design is directly used in scene the paint liquid for reclaiming
Production, had both improved organic efficiency, and due to reclaiming paint liquid with live fresh paint into same brand same model is belonged to, also kept away
Different plates are exempted from or different model paint liquid have used the painting process quality risk being likely to occur with.
Description of the drawings
With reference to the accompanying drawings and detailed description the present invention is described in more detail：
Accompanying drawing 1 is the handling process schematic diagram of the present invention；
Accompanying drawing 2 is the schematic diagram of the present invention；
Accompanying drawing 3 is the principle schematic of the waste gas processing method of the present invention；
Accompanying drawing 4 is the schematic diagram of the waste gas processing method preferred version one of the present invention；
Accompanying drawing 5 is the schematic diagram of the waste gas processing method preferred version two of the present invention；
Accompanying drawing 6 is the schematic diagram of the waste gas processing method preferred version three of the present invention；
Accompanying drawing 7 is the schematic diagram of the waste gas processing method preferred version four of the present invention；
In figure：1- paint spray booths；2- painting nozzles；4- filtering bodies；5- filtering bodies conveyer belts；6- filtering bodies cleaning devices；10- is painted back
Store up tank；11- fine filters；12-VOCs processing equipments；13- air inlets；15- exhaust steam passages；17- workpiece；21- collects dress
Put；22- paint thinner spray equipments；23- paint thinner storage tanks；24- paint reclaims storage tank；25- atomization absorption devices；
26- paint-fog filters；28- turbulators；The gas outlet of 29- atomization absorption devices；The processing chamber of 30- atomization absorption devices；31- is painted
Liquid storage tank.
Specific embodiment
As shown in Figure 1, 2, atomization absorption is included in the waste gas processing method that a kind of coating cloud is reclaimed, the waste gas processing method
The use of device 25, the atomization absorption device 25 includes air inlet 13, gas outlet 29, mist device processed and processing chamber 30, described
Air inlet 13 is connected with external exhaust gas floss hole, the mist device processed with close paint atomizing liquid manufacture liquid mist send into processing chamber or
Process intracavity and form liquid mist, the close paint atomizing liquid is paint thinner or oleophylic paint material, is processed when coating cloud waste gas is entered
During chamber, the coating cloud granule in waste gas is contacted with oleophylic paint liquid mist and forms the viscosity colloidal particle of big particle diameter, and colloidal particle exists
Gravity is separated including in the presence of the inertia force including centrifugal force from waste gas, forms the paint liquid that can be extracted out or flow out, and paints liquid
The collection device 21 for being atomized absorption plant collects recovery, and the waste gas Jing gas outlets 29 Jing after atomization process are discharged or delivered to follow-up
Treatment process is continued with.
The atomization absorption device can slightly be intercepted by installing turbulator additional inside device or by installing additional in air inlet 13
Device is strengthening coating cloud absorbability；The thick blocking apparatus include the thick of deflection plate, cyclone dust extractor or built-in filter packing
Filter structure；The turbulator 28 is used to make the waste gas for entering processing chamber form turbulent flow to lift the cohesion speed of coating cloud granule in waste gas
Degree, sets paint thinner spray equipment 22 to strengthen the stream of the paint liquid separated from waste gas in turbulator or thick blocking apparatus
Dynamic property.
The deflection plate includes V-type deflection plate or labyrinth type deflection plate or spiral spiral board.
The oleophylic paint liquid mist is with paint thinner or oleophylic paint material（Such as thinner or water paint aqueous solution）Deng material
Material makes.
The waste gas processing method is divided into following steps by waste gas flow direction.
A1, the waste gas of paint spray booth are withdrawn and delivered to atomization absorption device.
A2, the mist device processed send into processing chamber or form liquid mist intracavity is processed with close paint atomizing liquid manufacture liquid mist,
The close paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the coating cloud in waste gas
Granule is contacted with oleophylic paint liquid mist and forms the viscosity colloidal particle of big particle diameter, and colloidal particle exists in gravity or including centrifugal force
Separate from waste gas in the presence of interior inertia force, form the paint liquid that can be extracted out or flow out, paint liquid is further processed into recovery
Paint is re-used, or again as oleophylic paint atomized liquid for the reuse of atomization absorption device.
A3, the waste gas of discharge atomization absorption device directly discharge or enter later process；Waste gas is regarded between follow-up each procedure
Mobility status, the optional blower fan that sets pressurizes to overcome exhaust flow impedance to waste gas.
A4, waste gas are further filtered under Action of Wind pressure by paint-fog filter.
A5, the waste gas Jing after paint-fog filter process enter atomization postprocessing working procedures and continue with.
Paint-fog filter 26, filtering bodies 4 and filtering bodies cleaning device 6, the paint are provided with the atomization postprocessing working procedures
Exhaust steam passage 15 is provided with mist resistant filter 26 to be connected with the gas outlet of atomization absorption device 25, the filtering bodies 4 are with extensible side
In exhaust steam passage 15, filtering bodies 4 are with the material molding insoluble in paint solvent for formula；When waste gas passes through exhaust steam passage 15,
Coating cloud particulate matter in waste gas is filtered and to be stayed in and form paint particle in filtering bodies 4 by filtering bodies 4；The filtering bodies 4 are by solid
Determine frequency timing to substitute and send into filtering bodies cleaning device 6 and clean to recover the filter capacity of filtering bodies 4, waste gas after filtering
Discharge from the outlet of exhaust steam passage 15.
When filtering bodies 4 are cleaned in filtering bodies cleaning device 6, filtering bodies cleaning device 6 is cleaned simultaneously with paint solvent
Paint particle on dissolution filter body 4, makes paint particle become paint solution.
The paint solution that the filtering bodies cleaning device 6 is generated is admitted to paint room and allocates with fresh paint to realize reclaiming,
Or be admitted to after short oil varnish processing meanss are concentrated and be recycled.
The exit of the paint-fog filter exhaust steam passage is provided with detection means, and the waste gas component measured when detection means is not
When meeting discharge standard, the waste gas that Jing exhaust steam passages are discharged is sent back to atomization absorption device 25 and is processed again again.
When the waste gas component that detection means is measured meets discharge standard, the direct row up to standard of waste gas that Jing exhaust steam passages are discharged
Put or directly return the cyclical breathing of paint spray booth 1, or through VOCs processing equipments 12 be emitted into the external world or paint spray booth 1 again, or
By fine filter 11 fine particle in waste gas is filtered again again.
The filtering bodies 4 handle flowing mode or mechanical mode of movement is sent into filtering bodies cleaning device 6 and cleaned；The machinery is defeated
Mode is sent to include one or more in the conveying of drawer-type movable, chain conveying, netted conveying and crawler type, by continuous conveying
Or the mode circulation conveying filtering bodies 4 of intermittent delivery；Delivery of filtered body 4 is come with filtering bodies conveyer belt 5 in this example.
The use of the atomization absorption device includes the used aloned mode to atomization absorption device or multiple is applied in combination
Mode, the plurality of mode that is applied in combination is that multiple atomization absorption devices are combined as atomization absorption array, the atomization absorption
The compound mode of the atomization absorption device in array includes series connection and parallel connection.
In this example, the turbulator installed additional inside atomization absorption device is industry common device, and turbulator structure is similar to big
Turbulator used by diameter absorption tower.
Embodiment 1：
As shown in gas flow arrow in figure, the coating cloud waste gas in paint spray booth is expelled to the reduction of speed of turbulator 28 and filters, Ran Houjin
Enter the processing chamber 30 of atomization absorption device 25, mix with the oleophylic paint liquid mist in processing chamber 30, make the paint liquid in coating cloud waste gas
Microdroplet becomes large scale drop and is settled down to processing chamber bottom, is collected device 21 and is drawn to paint liquid storage tank, Jing after atomization process
Waste gas still contain a small amount of coating cloud, paint-fog filter 26 is delivered to after discharging Jing gas outlet 29 and is further processed.
Filtering bodies conveyer belt 5 is housed, filtering bodies conveyer belt 5 is provided with filtering bodies in the exhaust steam passage in paint-fog filter 26
4, filtering bodies conveyer belt 5 is moved, and makes the filtering bodies 4 in exhaust steam passage substitute and send into filtering bodies cleaning dress by fixed frequency timing
6 cleanings are put to recover the filter capacity of filtering bodies 4, when filtering bodies 4 are cleaned in filtering bodies cleaning device 6, filtering bodies are clear
Cleaning device 6 adsorbs the paint particle of interception with paint solvent cleaning and on dissolution filter body 4, makes paint particle become paint molten
Liquid, paint solution is stored in paint and reclaims in storage tank 10.
The exit of paint-fog filter exhaust steam passage is provided with detection means, when the waste gas component that detection means is measured meets row
When putting standard, the waste gas that Jing exhaust steam passages are discharged is discharged through VOCs processing equipments 12.
Embodiment 2：
When the requirement to coating cloud recovery utilization rate is conventional criteria, as shown in figure 3, the waste gas processing method is flowed to by waste gas
It is divided into following steps.
A1, the waste gas of paint spray booth are withdrawn and delivered to atomization absorption device.
A2, the mist device processed send into processing chamber or form liquid mist intracavity is processed with close paint atomizing liquid manufacture liquid mist,
The close paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the coating cloud in waste gas
Granule is contacted with oleophylic paint liquid mist and forms the viscosity colloidal particle of big particle diameter, and colloidal particle exists in gravity or including centrifugal force
Separate from waste gas in the presence of interior inertia force, form the paint liquid that can be extracted out or flow out, paint liquid is further processed into recovery
Paint is re-used, or again as oleophylic paint atomized liquid for the reuse of atomization absorption device.
A3, the waste gas of discharge atomization absorption device directly discharge or enter later process；Waste gas is regarded between follow-up each procedure
Mobility status, the optional blower fan that sets pressurizes to overcome exhaust flow impedance to waste gas.
A4, waste gas are further filtered under Action of Wind pressure by paint-fog filter.
A5, the waste gas Jing after paint-fog filter process enter atomization postprocessing working procedures and continue with.
Embodiment 3：
When the relative embodiment 2 of the requirement standard to coating cloud recovery utilization rate is high, using preferred version one as shown in figure 4, to paint
The paint solution that mist resistant filter is generated is recycled, and paint solution has following optional flow direction：1st, paint room and fresh oil are admitted to
Paint is allocated to realize reclaiming；2nd, it is admitted to after short oil varnish processing meanss are concentrated to generate and reclaims paint recycling；3rd, directly return
Send into and further dissolve in paint-fog filter paint to increase the concentration of paint solution；4- is treated to close paint atomizing liquid and shape
Paint liquid mist of getting married is used for atomization absorption device.
Embodiment 4：
When the clean-up effect to waste gas need to be strengthened, using preferred version two as shown in figure 5, increasing on the basis of embodiment 3
Filter body cleaning device 6, and set up coarse filter device at the air inlet gas circuit of atomization absorption device（Such as turbulator 28）.
Filtering bodies cleaning device 6 becomes paint particle with the paint particle in paint solvent cleaning simultaneously dissolution filter body 4
Paint solution；The filtering bodies cleaning device 6 has following optional flow direction in the paint solution obtained by cleaning process：1st, sent
Enter paint room to allocate to realize reclaiming with fresh paint；2nd, it is admitted to be generated after short oil varnish processing meanss are concentrated and reclaims paint again
Utilize；3rd, direct loopback to enter further dissolved in paint-fog filter paint to increase the concentration of paint solution；4- is treated to parent
Paint atomizing liquid simultaneously forms oleophylic paint liquid mist and uses for atomization absorption device；5- is treated to close paint atomizing liquid and coarse filtration is filled
Put and cleaned to form paint solution.
Coarse filter device（Such as turbulator 28）The paint solution of gained is processed into recovery paint and recycles after being cleaned.
Embodiment 5：
When the clean-up effect to waste gas need to be strengthened, when the relative embodiment 4 of requirement standard to coating cloud recovery utilization rate is higher, adopt
Preferred version three at filtering bodies cleaning device as shown in fig. 6, on the basis of preferred version two, increase at special short oil varnish
The paint solution that filtering bodies cleaning device is generated is processed at reason, now the filtering bodies cleaning device 6 is obtained by cleaning process
Paint solution have following optional flow direction：1st, it is admitted to paint room and fresh paint allotment to realize reclaiming；2nd, it is admitted to dilute
Paint processing meanss are generated after being concentrated and reclaim paint recycling；3rd, direct loopback enters further dissolved oil in paint-fog filter
Paint to increase the concentration of paint solution；4- is treated to close paint atomizing liquid and forms oleophylic paint liquid mist to make for atomization absorption device
With；5- is treated to close paint atomizing liquid and coarse filter device is cleaned to form paint solution；6th, shape after added solvent
Get married and be input into after paint solvent filtering bodies cleaning device with the cleansing power of intensive filtration body cleaning device.
Embodiment 6：
When the requirement to waste gas purification effect is higher than embodiment 5, using preferred version four as shown in fig. 7, in preferred version
On the basis of three, fine filter is set up at the Waste gas outlet of paint mist filtering device and except VOCS treatment process.
Claims (10)
1. the waste gas processing method that a kind of coating cloud is reclaimed, it is characterised in that：Including atomization absorption dress in the waste gas processing method
The use put, the atomization absorption device includes air inlet, gas outlet, mist device processed and processing chamber, the air inlet and outside
Waste gas outlet is connected, and the mist device processed sends into processing chamber or forms liquid intracavity is processed with close paint atomizing liquid manufacture liquid mist
Mist, the close paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the paint in waste gas
Mist granule contacts and is formed the viscosity colloidal particle of big particle diameter with oleophylic paint liquid mist, and colloidal particle is in gravity or including centrifugal force
Separate from waste gas in the presence of interior inertia force, form the paint liquid that can be extracted out or flow out, paint liquid is atomized absorption plant
Collection device is collected and reclaimed, and the waste gas Jing gas outlets Jing after atomization process are discharged or deliver to subsequent treatment operation and continue with.
2. the waste gas processing method that a kind of coating cloud according to claim 1 is reclaimed, it is characterised in that：The atomization absorption dress
Put can be by installing turbulator additional or by installing thick blocking apparatus additional in air inlet to strengthen coating cloud absorbability inside device；Institute
State coarse filtration structure of the thick blocking apparatus including deflection plate, cyclone dust extractor or built-in filter packing；The turbulator be used for make into
The waste gas for entering processing chamber forms turbulent flow to lift the cohesion speed of coating cloud granule in waste gas, and in turbulator or thick blocking apparatus oil is set
Lacquer diluent spray equipment with strengthen separate from waste gas paint liquid mobility.
3. the waste gas processing method that a kind of coating cloud according to claim 2 is reclaimed, it is characterised in that：The deflection plate includes
V-type deflection plate or labyrinth type deflection plate or spiral spiral board.
4. the waste gas processing method that a kind of coating cloud according to claim 1 is reclaimed, it is characterised in that：The exhaust-gas treatment side
Method is divided into following steps by waste gas flow direction；
A1, the waste gas of paint spray booth are withdrawn and delivered to atomization absorption device；
A2, the mist device processed send into processing chamber or form liquid mist intracavity is processed with close paint atomizing liquid manufacture liquid mist, described
Close paint atomizing liquid is paint thinner or oleophylic paint material, when coating cloud waste gas enters processing chamber, the coating cloud granule in waste gas
The viscosity colloidal particle of big particle diameter is contacted and formed with oleophylic paint liquid mist, and colloidal particle is in gravity or including including centrifugal force
Separate from waste gas in the presence of inertia force, form the paint liquid that can be extracted out or flow out, paint liquid is further processed into recovery paint
Re-use, or again as oleophylic paint atomized liquid for the reuse of atomization absorption device；
A3, the waste gas of discharge atomization absorption device directly discharge or enter later process；Regarding waste gas flowing between follow-up each procedure
Situation, the optional blower fan that sets pressurizes to overcome exhaust flow impedance to waste gas；
A4, waste gas are further filtered under Action of Wind pressure by paint-fog filter；
A5, the waste gas Jing after paint-fog filter process enter atomization postprocessing working procedures and continue with.
5. the waste gas processing method that a kind of coating cloud according to claim 4 is reclaimed, it is characterised in that：The atomization post processing
In-process is provided with paint-fog filter, filtering bodies and filtering bodies cleaning device, and exhaust steam passage and mist are provided with the paint-fog filter
The gas outlet for changing absorption plant is connected, and in extensible mode in exhaust steam passage, filtering bodies are with insoluble in oil for the filtering bodies
The material molding of white spirit；When waste gas passes through exhaust steam passage, the coating cloud particulate matter in waste gas is filtered and stayed in by filtering bodies
Paint particle is formed in filtering bodies；The filtering bodies are substituted and sent into filtering bodies cleaning device by fixed frequency timing cleans with extensive
The filter capacity of multiple filtering bodies, waste gas after filtering is discharged from the outlet of exhaust steam passage.
6. the waste gas processing method that a kind of coating cloud according to claim 5 is reclaimed, it is characterised in that：When filtering bodies are being filtered
When being cleaned in body cleaning device, filtering bodies cleaning device is made with the paint particle in paint solvent cleaning simultaneously dissolution filter body
Paint particle becomes paint solution.
7. the waste gas processing method that a kind of coating cloud according to claim 6 is reclaimed, it is characterised in that：The filtering bodies cleaning
The paint solution that device is generated is admitted to paint room and allocates to realize reclaiming with fresh paint, or is admitted to short oil varnish processing meanss
It is recycled after being concentrated.
8. the waste gas processing method that a kind of coating cloud according to claim 5 is reclaimed, it is characterised in that：The filtering bodies are handled
Flowing mode or mechanical mode of movement send into the cleaning of filtering bodies cleaning device；The mechanical mode of movement includes drawer-type movable, chain
One or more in formula conveying, netted conveying and crawler type conveying, is circulated defeated by way of continuous conveying or intermittent delivery
Send filtering bodies.
9. the waste gas processing method that a kind of coating cloud according to claim 1 is reclaimed, it is characterised in that：When atomization absorption device
Recovery paint liquid paint concentration it is high when be directly used in paint and be back to spray painting, when the paint concentration of paint liquid is low then as
The oleophylic paint liquid mist materials'use of atomization absorption device, processing chamber is returned Jing after atomization and is absorbed again and expected with improving to collect
Concentration facilitate subsequent use.
10. the waste gas processing method that a kind of coating cloud according to claim 1 is reclaimed, it is characterised in that：The atomization absorption
The use of device include the used aloned mode to atomization absorption device or it is multiple be applied in combination mode, it is the plurality of to be applied in combination
Mode is that multiple atomization absorption devices are combined as atomization absorption array, the atomization absorption device in the atomization absorption array
Compound mode includes series connection and parallel connection.
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| CN201710000430.7A CN106621669B (en) | 2017-01-03 | 2017-01-03 | Waste gas treatment method for recycling paint mist |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710000430.7A CN106621669B (en) | 2017-01-03 | 2017-01-03 | Waste gas treatment method for recycling paint mist |
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| CN106621669B CN106621669B (en) | 2019-04-02 |
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| CN114985122A (en) * | 2022-05-25 | 2022-09-02 | 江苏原创美妆有限公司 | UV coating cloud centrifugation recovery unit |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN106621669B (en) | 2019-04-02 |
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Effective date of registration: 20220429 Address after: 351100 No. 118, Hanzhong East Road, Putian high tech Industrial Development Zone, Hanjiang District, Putian City, Fujian Province Patentee after: FUJIAN LEBEN ENVIRONMENTAL PROTECTION TECHNOLOGY & EQUIPMENT Co.,Ltd. Address before: 351111 303-304, third floor, zone 1, science and technology incubator building, Putian high tech Zone, Putian City, Fujian Province Patentee before: FUJIAN TIANLANG ENVIRONMENTAL PROTECTION EQUIPMENT Co.,Ltd. |