CN109316875A - A kind of technique and spraying box handling coating cloud - Google Patents
A kind of technique and spraying box handling coating cloud Download PDFInfo
- Publication number
- CN109316875A CN109316875A CN201710643850.7A CN201710643850A CN109316875A CN 109316875 A CN109316875 A CN 109316875A CN 201710643850 A CN201710643850 A CN 201710643850A CN 109316875 A CN109316875 A CN 109316875A
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- CN
- China
- Prior art keywords
- coating cloud
- water
- spraying
- exhaust gas
- spray
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/12—Washers with plural different washing sections
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Details Or Accessories Of Spraying Plant Or Apparatus (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The present invention relates to spraying technical field of waste gas treatment more particularly to a kind of techniques and spraying box for handling coating cloud.The method of the processing coating cloud, comprising the following steps: (1) water curtain that recirculated water is formed in cascade baffle carries out shower absorption to spraying exhaust gas；(2) spraying exhaust gas enters rotating washing cylinder progress rotating washing, and the spray equipment at the top of rotating washing cylinder carries out spray-absorption to spraying exhaust gas；(3) spraying exhaust gas is discharged after the processing of demisting layer；Wherein, agent is tracked down and arrested added with coating cloud distintegrant and coating cloud in the recirculated water handled spraying exhaust gas.The present invention washes water curtain shower, eddy flow and spray adsorption technology combines, and has good coating cloud removal effect；Coating cloud distintegrant makes an addition in recirculated water, can effectively prevent coating cloud bonding spray chamber interior wall, be conducive to the cleaning of coating cloud dross, extend the service life of recirculated water, reduce the damage to equipment.
Description
Technical field
The present invention relates to spraying technical field of waste gas treatment more particularly to a kind of techniques and spraying box for handling coating cloud.
Background technique
When carrying out coating process, the VOCs exhaust gas of generation has to pass through to be effectively treated and can just be discharged into atmosphere and work as
In, the processing method being widely used at present is active carbon adsorption.The processing method requires the exhaust gas containing VOCs clean,
It can be only achieved ideal treatment effect.It therefore, will be in coating waste gas often in the preposition spray equipment of activated carbon adsorber
Coating cloud removal, purpose, which both can guarantee that active carbon layer was not blocked, can also reduce the VOCs concentration of exhaust gas, greatly prolong activity
The replacement cycle of charcoal.
Simple spraying box is generally used to coating cloud pretreatment at present, i.e., multiple spray dresses are set in a square box
It sets, spray equipment ejection recirculated water exhaust gas is directed through spraying box and mixes with steam, and part coating cloud is trapped in cabinet.It is this
Simple spraying box mixes collection steam in exhaust gas and enters activated carbon adsorber together, cause active carbon moist because of coating cloud poor removal effect
Failure, so causing it that cannot be widely used.And coating cloud can be adhered to equipment, the inside of pipeline and the pump housing, when using one section
Between after, will cause the obstruction in water route, gas circuit, it is difficult to clear up, cleaning treatment system is caused to be unable to operate normally, influence exhaust-gas treatment
Effect, and spraying box is damaged, influence its service life.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of techniques and spraying box for handling coating cloud, have energy-saving ring
It protects, the advantages that coating cloud removal effect is good, and decomposes medicament with coating cloud and coating cloud trapping medicament matches, prevent coating cloud blocking pipe
Road reduces the damage to equipment.
To achieve the above object, the technical solution adopted by the present invention is as follows.
A kind of technique handling coating cloud, comprising the following steps: the spraying exhaust gas that spraying process generates sucks coating cloud by negative pressure
Process chamber, the water curtain that recirculated water is formed in cascade baffle carry out shower absorption to spraying exhaust gas, spray the coating cloud in exhaust gas by water
Curtain brings the circulating water pool of spraying box bottom into；
After water curtain handles part coating cloud, spraying exhaust gas enters eddy flow water purge passage and carries out rotating washing, sprays exhaust gas in eddy flow
It is come into full contact in water purge passage with recirculated water, the spray equipment at the top of rotating washing cylinder carries out spray-absorption, paint to spraying exhaust gas
Mist is brought into circulating water pool by water mist retention；
Through the spraying exhaust gas of eddy flow water purge passage after dehydration layer processing, spraying box is discharged；
Wherein, added with coating cloud distintegrant in the recirculated water handled spraying exhaust gas, coating cloud distintegrant is in recirculated water
Coating cloud is decomposed and is disappeared viscous.
Further, the coating cloud distintegrant includes the following components'mass percentage: active foaming agent 10-30%；Hydroxide
Sodium 2-4%；Citric acid 3-8%；Surplus is water.
A kind of coating cloud spraying box of processing, it is characterised in that: including spray box main body and exhaust fan, spray box main body includes
Paint mist treatment room, circulating water pool and cascade baffle, the front of paint mist treatment room offer air intake vent, and cascade baffle plate setting is in inlet air
Mouthful inside, the top of cascade baffle is provided with cascade water jet, and circulating water pool is set to the bottom of spray box main body, at coating cloud
The indoor eddy flow water purge passage for being equipped with demisting layer and open topped of reason, eddy flow water purge passage includes the spray equipment for being set to cylinder top
With the water conservancy diversion spiral board for being set to a bottom, it is dehydrated the top that layer is set to spray equipment, exhaust fan is set to the top of demisting layer,
Circulating water pool, spray equipment and cascade water jet are connected with water circulating pump.
Further, at least one of the dehydration layer filled with multi-panel baton round, Raschig ring, Pall ring, ladder ring packing.
Further, the dehydration layer includes the upper dehydration layer and lower dehydration layer being arranged in parallel in.
Further, clearance space is provided between the eddy flow water purge passage and circulating water pool.
Detailed description of the invention
Fig. 1 is solid and schematic diagram of internal structure of the invention.
Appended drawing reference includes:
1- sprays box main body；2- exhaust fan；11- air intake vent；12- cascade baffle；13- cyclone water washing cylinder；131- water conservancy diversion spiral board；
14- is dehydrated layer；15- circulating water pool；16- spray equipment.
Specific embodiment
The present invention will be further described below with reference to the drawings, sees attached drawing 1.
A kind of paint mist treatment method, comprising the following steps:
(1) the spraying exhaust gas that spraying process generates enters paint mist treatment room, the water curtain that recirculated water is formed in cascade baffle 12, to spray
It applies exhaust gas and carries out shower absorption, the part coating cloud for spraying exhaust gas is brought into the circulating water pool 15 of spraying box bottom by water curtain；
(2) after water curtain handles part coating cloud, spraying exhaust gas enters rotating washing channel and carries out rotating washing, in water conservancy diversion spiral board
Under rinsing ball effect, spraying exhaust gas is come into full contact in rotating washing channel with recirculated water, the spray at the top of rotating washing cylinder
16 pairs of spraying exhaust gas of device carry out spray-absorption, and coating cloud, which is trapped, to be brought into circulating water pool 15；
(3) spraying box is discharged after dehydration layer 14 is handled by the spraying exhaust gas of rotating washing cylinder；
Wherein, added with coating cloud distintegrant in the recirculated water handled spraying exhaust gas, coating cloud distintegrant is in recirculated water
Coating cloud is decomposed and is disappeared viscous.
Further, the coating cloud distintegrant includes the following components'mass percentage:
Active foaming agent 20%；Sodium hydroxide 3%；Citric acid 5%；Surplus is water.
A kind of coating cloud spraying box of processing, it is characterised in that: including spray box main body 1 and exhaust fan 1, spray box main body 1
Including paint mist treatment room, circulating water pool 15 and cascade baffle 12, the front of paint mist treatment room offers air intake vent 11, cascade baffle
12 are set to the inside of air intake vent 11, and the top of cascade baffle is provided with cascade water jet, and circulating water pool 15 is set to spraying box
It the bottom of main body 1 and is connected to water circulating pump, the cyclone water washing cylinder 13 of dehydration floor 14 and open topped is equipped in paint mist treatment room,
The side of eddy flow water purge passage 13 is connect with the inner wall of paint mist treatment room, and eddy flow water purge passage 13 includes the spray for being set to cylinder top
Shower device 16 and the water conservancy diversion spiral board 131 for being set to a bottom, water conservancy diversion spiral board 131 offer apopore, and dehydration layer 14 is set to
The top of spray equipment 16.Circulating water pool 15, spray equipment 16 and cascade water jet are connected with water circulating pump.
Further, at least one of the dehydration layer filled with multi-panel baton round, Raschig ring, Pall ring, ladder ring packing.
Further, the dehydration layer includes the upper dehydration layer and lower dehydration layer being arranged in parallel in.
Further, clearance space is provided between the eddy flow water purge passage and circulating water pool.Finally it should be noted that
The above embodiments are merely illustrative of the technical solutions of the present invention, rather than limiting the scope of the invention, although referring to preferable
Embodiment explains the present invention in detail, those skilled in the art should understand that, it can be to technology of the invention
Scheme is modified or replaced equivalently, without departing from the spirit and scope of technical solution of the present invention.
Claims (6)
1. a kind of technique for handling coating cloud, it is characterised in that: the following steps are included:
The spraying exhaust gas that spraying process generates sucks paint mist treatment room by negative pressure, and the water curtain that recirculated water is formed in cascade baffle is right
It sprays exhaust gas and carries out shower absorption, spray the circulating water pool that the coating cloud in exhaust gas is brought into spraying box bottom by water curtain；
After water curtain handles part coating cloud, spraying exhaust gas enters eddy flow water purge passage and carries out rotating washing, sprays exhaust gas in eddy flow
It is come into full contact in water purge passage with recirculated water, the spray equipment at the top of rotating washing cylinder carries out spray-absorption, paint to spraying exhaust gas
Mist is brought into circulating water pool by water mist retention；
Through the spraying exhaust gas of eddy flow water purge passage after dehydration layer processing, spraying box is discharged；
Wherein, added with coating cloud distintegrant in the recirculated water handled spraying exhaust gas, coating cloud distintegrant is in recirculated water
Coating cloud is decomposed and is disappeared viscous.
2. a kind of technique for handling coating cloud according to claim 1, it is characterised in that: the coating cloud distintegrant includes following
The component of mass percent: active foaming agent 10-30%；Sodium hydroxide 2-4%；Citric acid 3-8%；Surplus is water.
3. a kind of coating cloud spraying box of processing, it is characterised in that: including spray box main body and exhaust fan, spray box main body includes paint
Mist process chamber, circulating water pool and cascade baffle, the front of paint mist treatment room offer air intake vent, and cascade baffle plate setting is in air intake vent
Inside, the top of cascade baffle is provided with cascade water jet, and circulating water pool is set to the bottom of spray box main body, paint mist treatment
Interior be equipped with demisting layer and open topped eddy flow water purge passage, eddy flow water purge passage include be set to cylinder top spray equipment and
It is set to the water conservancy diversion spiral board at bottom, dehydration layer is set to the top of spray equipment, and exhaust fan is set to the top of demisting layer, follows
Ring pond, spray equipment and cascade water jet are connected with water circulating pump.
4. a kind of coating cloud spraying box of processing according to claim 3, it is characterised in that: the dehydration layer is filled with multi-panel
At least one of baton round, Raschig ring, Pall ring, ladder ring packing.
5. a kind of coating cloud spraying box of processing according to claim 3, it is characterised in that: the dehydration layer includes setting in parallel
The upper dehydration layer and lower dehydration layer being placed in.
6. a kind of coating cloud spraying box of processing according to claim 3, it is characterised in that: the eddy flow water purge passage and follow
Ring is provided with clearance space between pond.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643850.7A CN109316875A (en) | 2017-07-31 | 2017-07-31 | A kind of technique and spraying box handling coating cloud |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710643850.7A CN109316875A (en) | 2017-07-31 | 2017-07-31 | A kind of technique and spraying box handling coating cloud |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109316875A true CN109316875A (en) | 2019-02-12 |
Family
ID=65245657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710643850.7A Withdrawn CN109316875A (en) | 2017-07-31 | 2017-07-31 | A kind of technique and spraying box handling coating cloud |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109316875A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772072A (en) * | 2019-04-02 | 2019-05-21 | 东莞市鑫祺机械设备有限公司 | A kind of multistage exhaust-gas treatment cleaning equipment |
| CN111821795A (en) * | 2020-07-07 | 2020-10-27 | 盛旺汽车零部件（昆山）有限公司 | Spraying waste gas treatment method |
-
2017
- 2017-07-31 CN CN201710643850.7A patent/CN109316875A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109772072A (en) * | 2019-04-02 | 2019-05-21 | 东莞市鑫祺机械设备有限公司 | A kind of multistage exhaust-gas treatment cleaning equipment |
| CN111821795A (en) * | 2020-07-07 | 2020-10-27 | 盛旺汽车零部件（昆山）有限公司 | Spraying waste gas treatment method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190212 |
|
| WW01 | Invention patent application withdrawn after publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Lian Yanhua Document name: Notification of Approving Refund |
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| DD01 | Delivery of document by public notice |