CN107694274A - The organic exhaust gas pretreatment cleaning system and organic waste-gas purification method of painting operation - Google Patents
The organic exhaust gas pretreatment cleaning system and organic waste-gas purification method of painting operation Download PDFInfo
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- CN107694274A CN107694274A CN201610645658.7A CN201610645658A CN107694274A CN 107694274 A CN107694274 A CN 107694274A CN 201610645658 A CN201610645658 A CN 201610645658A CN 107694274 A CN107694274 A CN 107694274A
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- 239000002912 waste gas Substances 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 167
- 239000007789 gas Substances 0.000 title claims abstract description 114
- 238000004140 cleaning Methods 0.000 title claims abstract description 51
- 238000000746 purification Methods 0.000 title claims abstract description 38
- 238000010422 painting Methods 0.000 title claims abstract description 33
- 238000001035 drying Methods 0.000 claims abstract description 52
- 238000009833 condensation Methods 0.000 claims abstract description 31
- 230000005494 condensation Effects 0.000 claims abstract description 31
- 230000008569 process Effects 0.000 claims abstract description 26
- 239000002245 particle Substances 0.000 claims description 38
- 238000001914 filtration Methods 0.000 claims description 19
- 238000004378 air conditioning Methods 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 13
- 230000000630 rising effect Effects 0.000 claims description 12
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 238000001179 sorption measurement Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 7
- 229910021536 Zeolite Inorganic materials 0.000 claims description 6
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims description 6
- 239000005416 organic matter Substances 0.000 claims description 6
- 239000010457 zeolite Substances 0.000 claims description 6
- 238000012806 monitoring device Methods 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000012855 volatile organic compound Substances 0.000 abstract description 40
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000009835 boiling Methods 0.000 description 21
- 238000000576 coating method Methods 0.000 description 20
- 239000011248 coating agent Substances 0.000 description 16
- 238000010586 diagram Methods 0.000 description 11
- 239000003973 paint Substances 0.000 description 9
- 239000003960 organic solvent Substances 0.000 description 7
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000002336 sorption--desorption measurement Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005507 spraying Methods 0.000 description 5
- FYGHSUNMUKGBRK-UHFFFAOYSA-N 1,2,3-trimethylbenzene Chemical compound CC1=CC=CC(C)=C1C FYGHSUNMUKGBRK-UHFFFAOYSA-N 0.000 description 4
- 239000000443 aerosol Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical group CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000011859 microparticle Substances 0.000 description 2
- 239000004014 plasticizer Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 230000007480 spreading Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000005238 degreasing Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- WOAFDHWYKSOANX-UHFFFAOYSA-N diisopropyl methylphosphonate Chemical compound CC(C)OP(C)(=O)OC(C)C WOAFDHWYKSOANX-UHFFFAOYSA-N 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 molten Substances 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
- 238000006552 photochemical reaction Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0002—Casings; Housings; Frame constructions
- B01D46/0012—In-line filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/06—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds
- B01D53/10—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents
- B01D53/12—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with moving adsorbents, e.g. rotating beds with dispersed adsorbents according to the "fluidised technique"
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
Abstract
The present invention relates to a kind of organic exhaust gas of painting operation to pre-process cleaning system and organic waste-gas purification method, organic exhaust gas pretreatment cleaning system includes the first bleed air lines, the second bleed air lines, be humidified condensing unit and the pipeline that confluxes, and the first bleed air lines are to draw the first waste gas caused by application processing procedure；Second bleed air lines are to draw the second waste gas caused by drying processing procedure；It is online that humidification condensing unit is disposed on the second air entraining pipe, and humidification condensing unit includes humidifying device and condensation chamber, so that the second waste gas is humidified and condensed；The pipeline that confluxes is the first bleed air lines of connection and the second bleed air lines.The present invention carries out pretreatment and further backflow part waste gas to processing procedure air inlet end respectively for the first waste gas of different qualities and the second waste gas, the burden and the consume of energy resource, the frequency of maintenance for reducing final pipe end processing equipment of processing procedure inlet end and final pipe end processing equipment can be mitigated, also more greatly improve the treatment effeciency of the VOCs in waste gas.
Description
Technical field
The present invention relates to a kind of organic exhaust gas of painting operation to pre-process cleaning system and organic waste-gas purification method, especially
It is related to the System and method for purified for caused organic exhaust gas in painting operation.
Background technology
Application (coatings/paints) engineering is widely used on every industry and product, and major function is to increase
Function, the mode of application such as attractive in appearance, product functional character or tool protection contain spraying process and rubbing method：Spraying process is to pass through spray
Paint spray in coated article surface, is commonly used to coating metal surfaces processing procedure (such as automobile sheet metal) etc. by rifle；It is coated with rule
Applied to related functionality products such as functional cloth, adhesive tape, label paper, paster, pi films.
In general, the coating that application processing procedure uses can have weatherability, heat-insulated, insulation and antirust, protection against the tide, acid and alkali-resistance etc.
The property changed, so as to reaching beautification, decorative product outward appearance, and provide simultaneously and avoid coated article surface scratches, corrosion and other effects, Jin Eryan
Long life, in this way, can even improve the value of the product of coated article in itself.Based on above characteristic and advantage, coating project quilt
It is widely used in architectural engineering, transportation equipment, electronic product, people's livelihood articles for use, national defense industry, machinery, furniture, plastics and metal system
Product etc., turn into a ring important in chemicals industry.
Wherein, the coating that application processing procedure uses is to protect plated body surface or outward appearance is produced change and use one
Kind material, the surface that object is coated on flow regime form film, through a period of time, after the solvent in coating volatilizees completely,
Form successional solid film set and be covered in its surface, flow regime includes liquid, molten, aerosol particle etc..
Coating be by color spreading agent (most of for resinae and cellulose), pigment, solvent (to dissolve color spreading agent) and
The additives such as a variety of plasticizers, curing agent are formed, therefore general coating is in itself i.e. with the presence of organic solvent (water-based painting
Except material, powder body coating coating)；In addition, it is the diluent for needing to add specific organic solvent before coating use, to improve
Its application characteristic, and the degreasing of application product and the cleaning of pipeline also often use organic solvent before application, it is seen that application is close with solvent
Inseparable relation, also therefore highlight the importance of organic solvent institute figure.
According to the species and characteristic of coated article and coating, in painting operation, in application processing procedure (such as spraying method or painting
Mode for cloth etc.) after can continue drying processing procedure, coatings are dried coated article in processing procedure in coated article surface in application processing procedure
Dried through hothouse with high temperature.Wherein, organic solvent used in application processing procedure belongs to low boiling and high volatile more, therefore easily
In spraying operation and baking process in loss or volatilization environment processed, the boiling point of most of organic solvent is relatively low, coating group composition
Organic solvent highly volatile, form so-called volatile organic matter (Volatile Organic Compounds, VOCs).
Meanwhile in application processing procedure, the sprinkling and splashing of coating cause to produce substantial amounts of paint grain (grain of the particle diameter more than 2.5 μm in spray booth
Shape thing；>>PM2.5), and it discharges waste gas based on middle low boiling volatile under normal temperature, low concentration VOCs.And dry processing procedure
In, the VOCs waste gas discharged by hothouse belongs to high-temperature exhaust air (delivery temperature is at 100~150 DEG C), and it discharges waste gas and contains height
Based on the middle higher boiling that can just be volatilized under temperature, high concentration VOCs, the higher boiling VOCs in waste gas with exhaust line distance because dropping
Temperature condensation forms time microparticles (micro- spray film drop；<<PM2.5).
Therefore, because VOCs has the toxicity of varying degree, and photochemical reaction can be participated in, waste gas caused by painting operation
Influence increasingly to be paid attention to caused by environment, waste gas caused by painting operation needs first purified processing, meets discharge standard,
Waste gas after purified treatment can be thrown into air.
As shown in figure 1, its be shown as in the prior art applied to painting operation organic exhaust gas purifying system schematic diagram.It is existing
Some organic exhaust gas purifying systems mainly include windmill 101, scrubbing tower 102, wheel device 103 and blowdown stack 104, and painting is pretended
Application processing procedure in industry leads to scrubbing tower 102 by windmill 101 after collecting with waste gas caused by drying process and washed, with
Paint grain content is reduced, then the waste gas after washing is introduced into the adsorption desorption unit of wheel device 103, passes through the adsorption desorption in runner
Unit absorbs the volatility VOCs matter in waste gas.However, general application industry exhaust gas entrance concentration is 200-600mg/M3
Left and right, wherein also comprising 5-15% naphthas composition, 5% trimethylbenzene and 5% ortho-xylene etc., it belongs to higher boiling, non-aqueous
The VOCs of dissolubility, higher boiling VOCs easily condense and blocked in adsorption desorption unit (such as runner such as zeolite runner, activated carbon fluidized bed
Equipment 103) porous adsorption material on, thus cause the efficiency of adsorption desorption unit gradually to reduce；In addition, wheel device 103 is inhaled
Desorption unit (such as high silica alumina ratio hydrophobicity ZSM-5 and/or y-type zeolite；UOP Hisiv 3000 and/or Hisiv1000), it is right
In the larger higher boiling in molecule footpath, water-insoluble VOCs adsorption efficiencies it is extremely low (<20%), can not, for aforementioned data example
15-25% account for by the VOCs of the adsorption desorption unit adsorption treatment of wheel device 103, cause other kinds of VOCs processing to be imitated
Rate must be up to more than 99%, and must increase equipment and running cost, such as set up the suctions such as one group of wheel device of series connection again and take off
Coupon member is purified again, and just reaching 99% treatment effeciency, (efficiency calculation formula is as follows：90%+ (100%-90%)
X90%=99%), it can be only achieved environment protection emission laws and regulations requirement.
In addition, in order that coatings are in the stabilizations such as the uniform, thickness of coating on coated article surface, and baking in application processing procedure
The steady quality for drying coated article in drying journey, paint booth must possess metastable humiture, wind speed and gas with drying chamber
Flow cleanliness factor environment, therefore, the air inlet pipe of application processing procedure and drying processing procedure is online, it is necessary to carry out shot-like particle in influent stream gas,
Temperature, humidity, the adjustment processing for stablizing air inlet air quantity, wind speed (voltage stabilizing) and volatile organic matter (VOCs or THC) concentration, with
Ensure that quality and safety operates, however, in winter (particularly refrigerant latitudes) or summer (particularly subtropical zone or torrid areas)
For, it will therefore increase considerably cooling and/or heat required energy resource consumption, also increase final pipe end waste gas treatment equipment
Burden.
The content of the invention
The purpose of the present invention is currently used in waste gas purification treatment technology caused by painting operation in solution, big point
The high boiling VOCs of son easily condenses and blocked on runner and the problems such as adsorption desorption purification efficiency is bad.
Another object of the present invention is to solve to be currently used in waste gas purification treatment technology caused by painting operation, application
Processing procedure results in the need for configuring a variety of pre-filtering processing modes with drying two bursts of exhaust gas properties differences of processing procedure but merging treatment
And the problems such as setting and high running cost.
A further object of the present invention is currently used in waste gas purification treatment technology caused by painting operation in solution, is applied
The need for filling processing procedure largely cool down and/or heat air inlet and air inlet must be made to possess the control such as stable humiture and wind speed, safe concentration
The problems such as making, thus causing the running cost of highly energy-consuming.
Another object of the present invention is currently used in waste gas purification treatment technology caused by painting operation in solution, application
The discharge waste gas of processing procedure belongs to based on normal temperature low concentration Wind Volume, causes pipe end pipeline to be set with processing equipment high with running cost
The problems such as.
For the above-mentioned purpose and other purposes, the invention discloses a kind of organic exhaust gas of painting operation pretreatment purification system
System, for handling the second waste gas caused by the first waste gas caused by application processing procedure and drying processing procedure, the organic exhaust gas is located in advance
Reason cleaning system includes the first bleed air lines, the second bleed air lines, be humidified condensing unit and the pipeline that confluxes, first bleed air lines
Draw the first waste gas caused by the application processing procedure；Second bleed air lines draw the second waste gas caused by the drying processing procedure；
It is online that the humidification condensing unit is arranged at second air entraining pipe, and the humidification condensing unit includes a humidifying device and a condensation
Room, so that second waste gas is washed and is humidified and condenses；The collecting pipe linear system connects first bleed air lines and second drawn with this
Gas pipeline, so that first waste gas and second waste gas conflux.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including the first filter element, first filter element is set
First bleed air lines are placed in, for filtering the shot-like particle in first waste gas.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including the second filter element, second filter element is set
Put in the pipeline that confluxes, for filtering the shot-like particle in the waste gas that confluxes.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein backflow bleed air lines are also included, the backflow bleed air lines
Upstream connects first bleed air lines and the pipeline junction or preceding of confluxing, by the whole of the waste gas of first bleed air lines or portion
Separate out and be back to Gas inlet tube at least one in the application processing procedure and the drying processing procedure.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including the 3rd filter element, the 3rd filter element is set
It is placed in that the backflow air entraining pipe is online, for filtering the shot-like particle in the gas passed through in the backflow bleed air lines.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including organic matter concentration monitoring device, the organic concentration
Monitor be arranged on it is at least one in the Gas inlet tube of the backflow air entraining pipe, the Gas inlet tube of the application processing procedure and the drying processing procedure,
For monitoring the organic concentration in pipe.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including the first air-conditioning unit, first air is adjusted
Section unit is arranged on the Gas inlet tube of the application processing procedure, and the shot-like particle of gas in the Gas inlet tube, temperature, wet is handled for adjusting
At least one of degree, air inlet air quantity and air inlet wind speed.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also including the second air-conditioning unit, second air is adjusted
Section unit is arranged on the Gas inlet tube of the drying processing procedure, and the shot-like particle of gas in the Gas inlet tube, temperature, wet is handled for adjusting
It is at least one in degree, air inlet air quantity and air inlet wind speed.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein also connecting comprising the wet unit of control of rising again, the wet unit of control of rising again
The pipeline that confluxes is connect, and for directly or indirectly heating the waste gas that confluxes in the pipeline that confluxes.
Above-mentioned organic exhaust gas pretreatment cleaning system, wherein the humidification condensing unit have demister, and the demister is set
It is placed in the downstream of the condensation chamber.
Above-mentioned organic exhaust gas pretreatment cleaning system, the wherein condensation chamber have condenser.
Above-mentioned organic exhaust gas pretreatment cleaning system, the temperature of the wherein humidifying liquid that the humidifying device is provided be equal to or
Less than the dew-point temperature of second waste gas.
Above-mentioned organic exhaust gas pretreatment cleaning system, the wherein condensation chamber have porous gap layer.
For the above-mentioned purpose and other purposes, the present invention also provide a kind of organic waste-gas purification method of painting operation, use
In handling the first waste gas caused by application processing procedure in painting operation and drying the second waste gas caused by processing procedure, its feature exists
In the organic waste-gas purification method includes：Be humidified condensing steps, is humidified and condenses the second waste gas caused by the drying processing procedure；
And step of confluxing, be humidified and condensed second waste gas and the application processing procedure caused by the first waste gas conflux for the waste gas that confluxes,
The waste gas that confluxes introduces final pipe end reason equipment clean processing.
In above-mentioned organic waste-gas purification method, the wherein step of confluxing, the first waste gas caused by the application processing procedure is first
After shot-like particle filtration treatment, then be humidified and condensation process after the second waste gas conflux.
Above-mentioned organic waste-gas purification method, wherein also first after filtered processing is given up comprising backflow bleed step
Gas is brought out being back at least one in the wind inlet end of the application processing procedure and the wind inlet end of the drying processing procedure through the bleed air lines that flow back
It is individual.
In above-mentioned organic waste-gas purification method, wherein the backflow bleed step, the backflow bleed air lines are provided with the 3rd
Filter element, for filtering the shot-like particle in gas.
Above-mentioned organic waste-gas purification method, wherein also including organic concentration monitor step, the backflow air entraining pipe, the application
At least one of which of the Gas inlet tube of the Gas inlet tube of processing procedure and the drying processing procedure sets organic matter concentration monitoring device, is managed for monitoring
In organic concentration.
Above-mentioned organic waste-gas purification method, wherein also include air adjustment step, the application processing procedure wind inlet end and
At least one upper setting air-conditioning unit in the wind inlet end of processing procedure is dried, is handled with regulation granular in the gas of wind inlet end
Thing, temperature, humidity, at least one of which of air inlet air quantity and air inlet wind speed.
Above-mentioned organic waste-gas purification method, the wherein waste gas that confluxes are heat-treated, the temperature rise for the waste gas that makes to conflux
Below 80%RH is reduced to 20-40 DEG C and humidity, enters back into the final pipe end processing equipment.
Above-mentioned organic waste-gas purification method, the wherein final pipe end processing equipment are zeolite concentration rotating wheel, active carbon flow
Body bed, adsorption tower or incinerator.
Accordingly, in the organic exhaust gas pretreatment cleaning system and organic waste-gas purification method of above-mentioned painting operation, will apply
Second waste gas caused by filling the first waste gas caused by processing procedure and drying processing procedure carries out Individual pretreatment, with for different qualities
The first waste gas (volatile low boiling VOCs and paint grain account for major part) and the second waste gas (higher boiling VOCs and secondary micron aerosol
Particulate accounts for major part) pre-processed respectively, the burden of final pipe end processing equipment can be not only alleviated, can also reduce final pipe
The frequency of maintenance of last processing equipment, also more greatly improve the treatment effeciency of the VOCs in waste gas.
Brief description of the drawings
Fig. 1 is the schematic diagram for the organic exhaust gas purifying system for being applied to painting operation in the prior art；
Fig. 2 is that the organic exhaust gas of first embodiment of the invention pre-processes the schematic diagram of cleaning system；
Fig. 3 is the schematic flow sheet of painting operation；
Fig. 4 A and 4B are in the same painting operation in first embodiment of the invention, to the first waste gas caused by application processing procedure
Particle mass scatter chart with drying the second waste gas sample detecting caused by processing procedure；
Fig. 5 A and 5B are the structural representation of the exemplary embodiment aspect of humidification condensing unit；
Fig. 6 is that the organic exhaust gas of second embodiment of the invention pre-processes the schematic diagram of cleaning system；
Fig. 7 is that the organic exhaust gas of third embodiment of the invention pre-processes the schematic diagram of cleaning system；
Fig. 8 is that the organic exhaust gas of fourth embodiment of the invention pre-processes the schematic diagram of cleaning system；
Fig. 9 is that the organic exhaust gas of fifth embodiment of the invention pre-processes the schematic diagram of cleaning system.
【Symbol description】
1 organic exhaust gas pre-processes cleaning system
10 first bleed air lines
11 Gas inlet tubes
20 second bleed air lines
21 Gas inlet tubes
30 humidification condensing units
31 humidifying devices
311 feed flow pipelines
312 help Pu
313 coolers
32 condensation chambers
33 demisters
321 porous gap layer
322 condensers
40 conflux pipeline
The filter elements of 50A first
The filter elements of 50B second
The filter elements of 50C the 3rd
The air-conditioning units of 60A first
The air-conditioning units of 60B second
70 final pipe end processing equipments
80,80 ', which rise again, controls wet unit
81 rise again heat exchanger
82 drainage pipelines
82a fairleads
82b return ducts
83 circulation windmills
84 high temperature side pipelines
The pipelines of 84a first
The pipelines of 84b second
85 first heating pipelines
86 second heating pipelines
90 backflow bleed air lines
91 connecting tubes
92 connecting tubes
93 backflow windmills
95A, 95B, 95C, 95D organic concentration monitor
Embodiment
To be fully understood by the purpose of the present invention, feature and effect, now by following specific embodiments, and coordinate accompanying drawing,
The present invention is described in further details, is described as follows：
Fig. 2 is refer to, the organic exhaust gas pretreatment cleaning system 1 of first embodiment of the invention is used to handle in painting operation
Second waste gas caused by first waste gas caused by application processing procedure and drying processing procedure, organic exhaust gas pretreatment cleaning system 1
Include the first lead device pipeline 10, the second lead device pipeline 20, humidification condensing unit 30 and the pipeline 40 that confluxes, first bleed air lines 10
Draw the first waste gas caused by the application processing procedure；Second is useless caused by the second bleed air lines 20 extraction drying processing procedure
Gas；The humidification condensing unit 30 is arranged in second bleed air lines 10, the humidification condensing unit 30 include humidifying device 31 and
Condensation chamber 32, so that second waste gas is washed and is humidified and condenses；This conflux pipeline 40 connect first bleed air lines 10 with
Second bleed air lines 20, so that first waste gas and second waste gas conflux, and form the waste gas that confluxes.This confluxes after pipeline 40
End can connect final pipe end processing equipment 70, by the waste gas purification processing of confluxing, and then reduce wherein VOCs contents.
It is preferred that organic exhaust gas pretreatment cleaning system 1 can include the first filter element 50, first filter element
50 are arranged in first bleed air lines 10, for filtering the shot-like particle in first waste gas, make most in the first waste gas
Shot-like particle filters out in advance, the burden so as to mitigating follow-up equipment processing.
In first embodiment of the invention, organic exhaust gas pretreatment cleaning system 1 is used to handle application system in painting operation
Second waste gas caused by first waste gas caused by journey and drying processing procedure, as shown in figure 3, painting operation mainly includes application system
Journey and drying processing procedure, coatings are allowed in application processing procedure to dry in coated article surface and pass through coated article in processing procedure in spray booth
Hothouse is dried coated article with high temperature.Wherein, after the drying processing procedure is connected in the application processing procedure, or, the drying processing procedure with
There are other processing procedures between the application processing procedure.
It please coordinate reference picture 4A and Fig. 4 B, it is in same painting operation, to the first waste gas A caused by application processing procedure with drying
The particle mass scatter chart of second waste gas B sample detectings caused by drying journey.
As shown in Figure 4 A, particle concentration highest concentrates on particle diameter between 10~18 μm, that is, to represent first in the first waste gas A
Diameter of particle is mainly distributed on more than 10 μm in waste gas A；Further the first waste gas A of analysis characteristic, because application processing procedure is in normal
Temperature is lower to carry out coating spraying, therefore the first waste gas A compositions are shown as volatile at normal temperatures relatively low boiling VOCs (such as toluene, two
Toluene, butanone and cyclohexanone etc.), paint grain (more than 2.5 μm of particulate category paint grains) and minimal amount of higher boiling VOCs.
As shown in Figure 4 B, particle concentration highest concentrates on particle diameter as between 0.1~0.18 μm in the second waste gas B, most of
For 0.3 μm or so of secondary microparticles of particle diameter；Further the second waste gas B of analysis characteristic, because drying processing procedure is in 150 to 200
Carried out at a high temperature of DEG C, therefore the higher boiling VOCs in coating is evaporated, thus the second waste gas B compositions for about 160 DEG C of boiling point with
On higher boiling VOCs (such as the macromolecular VOCs such as trimethylbenzene, C7~C12 naphthas, plasticizer, DIMP, DOP) based on and it is few
The middle low boiling VOCs of amount, in addition, in the second waste gas B also contain from drying chamber and draw afterwards gradually cooling and produce condensation
Secondary micron (0.1~1 μm of particle diameter) thin suspended particulates.
Therefore using a kind of organic waste-gas purification method of painting operation in above-described embodiment, it includes humidification condensation step
Rapid and step of confluxing：In the humidification condensing steps, it is humidified and condenses the second waste gas caused by the drying processing procedure, and makes the drying
Second waste gas caused by processing procedure first scrubbed humidification and evaporative cooled and carry out condensation process, and then make in second waste gas
Higher boiling VOCs largely intercept by absorption；This confluxes in step, makes humidification and condensed second waste gas is with being somebody's turn to do
First waste gas caused by application processing procedure confluxes for the waste gas that confluxes, and the waste gas that confluxes is introduced at the purification of final pipe end processing equipment 70
Reason.Fig. 2 please be return, the second waste gas caused by the drying processing procedure, is to be drawn by second bleed air lines 20 and through the increasing
Wet condensation unit 30 is humidified and condensation process, in the humidification condensing unit 30, the humidifying device 31 sprinkling humidifying liquid make this
Two waste gas are humidified, and second waste gas makes aqueous vapor reach saturation or supersaturation in the condensation chamber 32 because of low temperature, so make this
Two waste gas produce saturation or the solidifying core growth of supersaturation condensation, wherein bigger molecule and the higher boiling VOCs also condensed and secondary micron
The drop or liquid film that the thin suspended particulates of (0.1~1 μm of particle diameter) are formed intercept and/or absorb and assemble, and then make second
The content of VOCs and thin suspended particulates in waste gas are greatly reduced.On the other hand, the first waste gas caused by the application processing procedure is first
Through first filter element 50 carry out shot-like particle filtration treatment after, then be humidified and condensation process after the second waste gas in the remittance
Conflux to form the waste gas that confluxes in flow tube line 40.
In the present embodiment, the final pipe end processing equipment 70 with zeolite concentration rotating wheel as an example, be so not limited to this, should
Final pipe end processing equipment 70 can also be for example at activated carbon fluidized bed, adsorption tower, incinerator or other organic waste-gas purifications
Device is managed, in addition, the final pipe end processing equipment 70 also can be zeolite concentration rotating wheel, activated carbon fluidized bed, adsorption tower and burn
Change the system at least configuring composition in stove more than the two.
In the present embodiment, organic exhaust gas pretreatment cleaning system 1 can also include the second filter element 60, second filtering
Unit 60 is arranged at this and confluxed on pipeline 40, for filtering the shot-like particle in the waste gas that confluxes, with further by the waste gas that confluxes
In shot-like particle filter off and remove, avoid the shot-like particle content in the waste gas that confluxes excessive and block the final pipe end processing equipment
70。
In the present embodiment, the demister 33 of humidification condensing unit 30, the demister is arranged at the downstream of the condensation chamber 32, uses
In intercepting drop (humidifying liquid/cleaning solution), micro- mist or particulate that condensation is condensed in the second waste gas.
It refer to shown in Fig. 5 A, it is that the structure of the exemplary embodiment aspect of the humidification condensing unit 30 in the present embodiment is shown
It is intended to, wherein, the second waste gas is entered by the bottom inlet of the humidification condensing unit 30, and by the top of the humidification condensing unit 30
Outlet discharge, the temperature for the humidifying liquid that the humidifying device 31 is provided are equal to or less than the dew-point temperature of second waste gas, citing
For, it is by the humidification that the humidifying device 31, which can have feed flow pipeline 311, side Pu 312 and cooler 313, second waste gas,
The humidifying liquid that device 31 provides washs and makes the washed interception such as shot-like particle contained therein, and the cooler 313 makes the humidifying liquid
Temperature be cooled to the dew-point temperature equal to or less than second waste gas, the humidifying liquid of low temperature is dripped downwards by the condensation chamber
32.There can be porous gap layer 321 in the condensation chamber 32, the porous gap layer 321 has mushy layer structure, makes the humidifying liquid
Short stay progress heat exchange of the second waste gas with passing through in the porous gap layer 321, humidifying liquid run into the second waste gas meeting
Evaporative cooled is produced, second waste gas is condensed and produces the solidifying reaction of core, and then, the VOCs in second waste gas is in the humidification
Intercept by absorption in condensing unit 30.
In this embodiment aspect, the humidifying liquid from top to bottom dripped, which can be recovered and be circulated through the feed flow pipeline 311, to be sprayed.
The present invention the humidification condensing unit 30 be not limited to said structure, as long as can make second waste gas can be humidified and
The structure configuration of condensation should all belong within the scope of the present invention.For example, refer to shown in Fig. 5 B, it is should in the present embodiment
Be humidified condensing unit 30 ' another exemplary embodiment aspect structural representation, there is condenser 322 in the condensation chamber 32 ', this
Condenser 322 is, for example, the coil pipe with cooling water circulation, the environment temperature of the condensation chamber 32 is less than the dew of second waste gas
Point temperature, and then make second waste gas condensation by the condensation chamber 32.
It refer to shown in Fig. 6, it is the schematic diagram of second embodiment of the invention.Wherein, organic exhaust gas pretreatment purification
System can include the wet unit 80 of control of rising again, and the wet unit 80 of control of rising again connects the pipeline 40 that confluxes, and for the indirectly heat remittance
The waste gas that confluxes in flow tube line 40.For example, the wet unit 80 of control of rising again can include heat exchanger 81 of rising again, drainage pipeline 82
And there is fairlead 82a and return duct 82b, fairlead 82a may connect to the final pipe for circulation windmill 83, the drainage pipeline 82
The last porch of processing equipment 70, a part for the waste gas that confluxes among the pipeline 40 that confluxes is led into the heat exchanger of rising again
81 carry out heat exchange, and the waste gas that confluxes of heating returns to the pipeline 40 that confluxes via return duct 82b again, and then it is useless this is confluxed
Gas is first heated before the final pipe end processing equipment 70 is entered, and the temperature of the waste gas that confluxes is warming up to 20-40 DEG C and phase
Below 80%RH is reduced to humidity, is advantageous to adsorption capacity of the final pipe end processing equipment 70 to VOCs in waste gas, and then
Lift the removal efficiency of VOCs in waste gas.
It is preferred that this is risen again, the high temperature side of heat exchanger 81 can be the high-temperature gas drawn by incinerator 90, citing and
Speech, the wet unit 80 of control of rising again can include high temperature side pipeline 84, and the high temperature side pipeline 84 includes the first pipeline 84a for being connected and the
Two pipeline 84b, first pipeline 84a connect the incinerator 90, for the high-temperature gas of incinerator 90 to be led into second pipe
Line 84b, second pipeline 84b are connected to the heat exchanger 81 of rising again, to heat the waste gas that confluxes in the drainage pipeline 82.
In addition, the porch of final pipe end processing equipment 70 can have temperature sensor (not shown), the temperature sensor
For monitoring the waste gas that confluxes into the temperature before the final pipe end processing equipment 70, the circulation windmill 83 can be according to the TEMP
The temperature that device is measured determines the flow pumped.
As shown in fig. 6, in organic waste-gas purification method used in second embodiment of the invention, this confluxes in pipeline 40
The waste gas that confluxes is by being heated up indirectly with high-temperature gas heat exchange, and the temperature for the waste gas that makes to conflux is increased to 20-40 DEG C and humidity
Below 80%RH is reduced to, enters back into the final pipe end processing equipment, to allow the waste gas that confluxes to enter the final pipe end processing equipment
Before 70, make conflux EGT heating and the relative humidity reduction, and the final pipe end processing equipment 70 can be increased to VOCs's
Adsorption capacity, and then lift the removal efficiency of VOCs in waste gas.
It refer to shown in Fig. 7, it is shown as the schematic diagram of third embodiment of the invention.Different from being in for second embodiment
The pipeline 40 and for directly heating the waste gas that confluxes in the pipeline 40 that confluxes of confluxing is connected in, the wet unit 80 ' of control of rising again.Lift
For example, the wet unit 80 ' of control of rising again includes the first heating pipeline 85 and second and heats pipeline 86, and the first heating pipeline 85 connects
The combustion chamber of the incinerator 90 is connect, the second heating pipeline 86 connects the outlet line of the incinerator 90, and by the incinerator 90
Combustion chamber in high-temperature gas and the high-temperature gas after the incineration process of incinerator 90 lead in the pipeline 40 that confluxes, enter
And heat the waste gas that confluxes.
Wherein, the first heating pipeline 85 and the second heating pipeline 86 each have valve module (not shown), for controlling
The flow of preparing high-temp gas.In addition, similar to second embodiment, the porch of final pipe end processing equipment 70 can also have temperature
Sensor (not shown) is spent, the temperature sensor is used to monitor the temperature that waste gas enters before the final pipe end processing equipment 70 of confluxing
The valve module system of degree, the first heating pipeline 85 and the second heating pipeline 86 can come according to the temperature that the temperature sensor is measured
Determine the flow of high-temperature gas passed through.
As shown in fig. 7, in organic waste-gas purification method used in third embodiment of the invention, this confluxes in pipeline 40
The waste gas that confluxes is heated up by direct mixing high temperature gas, and the temperature for the waste gas that makes to conflux, which is increased to 20-40 DEG C and humidity, to be reduced
To below 80%RH, the final pipe end processing equipment 70 is entered back into, to allow the waste gas that confluxes to enter the final pipe end processing equipment 70
Before, make conflux EGT heating and the relative humidity reduction, and final pipe end 70 suction to VOCs of processing equipment can be increased
Attached ability, and then lift the removal efficiency of VOCs in waste gas.
In the present embodiment, the " clean " exhaust gas after the purified treatment of final pipe end processing equipment 70 can be directly via exhaust chimney
It is discharged into air and/or is back to the application processing procedure or the wind inlet end of the drying processing procedure.
Fig. 8 is refer to, it is shown as the schematic diagram of fourth embodiment of the invention.Organic exhaust gas pretreatment cleaning system enters one
Step includes backflow bleed air lines 90, and the upstream of the backflow bleed air lines 90 connects first bleed air lines 10 and the pipeline 40 that confluxes
Junction is preceding, and all or part of draw of the waste gas of first bleed air lines 10 is back into the application processing procedure and the drying
The Gas inlet tube 11,21 of at least one of processing procedure.As shown in Figure 8, backflow windmill 93 is provided with the backflow bleed air lines 90, and
The wind inlet end 11 of the application processing procedure is connected with connecting tube 91 and the wind inlet end 21 of the drying processing procedure is connected with connecting tube 92, accordingly,
First waste gas of the backflow windmill 93 after the first filter element 50A filters processing pumps back the wind inlet end 11 of the application processing procedure
And/or the wind inlet end 21 of the drying processing procedure, and as the air inlet of the application processing procedure and/or the drying processing procedure.
Organic exhaust gas pretreatment cleaning system also includes organic matter concentration monitoring device 95A, 95B, 95C, 95D, and it can set
Be placed on the backflow air entraining pipe, the Gas inlet tube of the Gas inlet tube of the application processing procedure and the drying processing procedure at least one on, to perform
Organic concentrations monitoring step, for monitoring the organic concentration in pipe (such as VOCs or THC).
, will be filtered comprising backflow bleed step in organic waste-gas purification method used in fourth embodiment of the invention
The first waste gas after processing is brought out being back to the wind inlet end 11 and the drying system of the application processing procedure through the backflow bleed air lines 90
At least one of the wind inlet end 21 of journey, entering using cycling and reutilization as the wind inlet end of the application processing procedure or/and the drying processing procedure
Gas, and then reduce the power consumption of processing procedure air inlet temperature and humidity control and reduce the burden of end waste gas purification processing.
It refer to shown in Fig. 9, it is shown as the schematic diagram of fifth embodiment of the invention.The organic exhaust gas pre-processes cleaning system
The 3rd filter element 50C is also included, the 3rd filter element 50C is arranged in the backflow bleed air lines 90, for filtering this time
Shot-like particle in the gas passed through in stream bleed air lines 90.
Organic exhaust gas pretreatment cleaning system also includes the first air-conditioning unit 60A, first air-conditioning unit
60A is arranged on the Gas inlet tube 11 of the application processing procedure, and the shot-like particle of gas in the Gas inlet tube 11, temperature, wet is handled for adjusting
At least one of degree, air inlet air quantity and air inlet wind speed, to perform air adjustment step, reach for inlet air filtration temperature control control whereby
Wet purpose, and then lift processing procedure stabilization and product yield.
Organic exhaust gas pretreatment cleaning system also includes the second air-conditioning unit 60B, the second air-conditioning unit 60B
Be arranged on the Gas inlet tube 21 of the drying processing procedure, for adjust handle the shot-like particle of gas in the Gas inlet tube 21, temperature, humidity,
At least one of air inlet air quantity and air inlet wind speed, to perform air adjustment step, reach whereby for inlet air filtration temperature and humidity control
Purpose, and then lift that processing procedure is stable and product yield.
In the present embodiment, the first air-conditioning unit 60A and second air-conditioning unit 60B may be, for example, air inlet
Filter temperature and humidity control conditioner (Make-up Air Handling Unit) or other device groups that may achieve identical function
Close.
Accordingly, in the embodiments of the present invention, by caused by the first waste gas caused by application processing procedure and drying processing procedure
Second waste gas carries out Individual pretreatment, and with the first waste gas for different qualities, (volatile low boiling VOCs and paint grain account for greatly
Part) pre-processed respectively with the second waste gas (higher boiling VOCs and secondary micron aerosol particles account for major part), along with utilization
The configuration that some exhaust gas thus flows backwards recycle, it can not only alleviate the apparatus of air conditioning and final pipe end reason of processing procedure wind inlet end
The burden of equipment, frequency of maintenance and the safety operation of final pipe end processing equipment can be also reduced, is also more greatly improved in waste gas
VOCs treatment effeciency.
The present invention has hereinbefore been disclosed by preferred embodiment, but it will be understood by those skilled in the art that the reality
Apply example to be only used for describing the present invention, and be not construed as limiting the scope of the present invention.It should be noted that every and embodiment etc.
The change and displacement of effect, it all should be set to be covered by scope of the invention.Therefore, protection scope of the present invention should be wanted with right
The scope for asking book to be defined is defined.
Claims (21)
- A kind of 1. organic exhaust gas pretreatment cleaning system of painting operation, for handling in painting operation caused by application processing procedure Second waste gas caused by first waste gas and drying processing procedure, it is characterised in that organic exhaust gas pretreatment cleaning system includes：First bleed air lines, draw the first waste gas caused by the application processing procedure；Second bleed air lines, draw the second waste gas caused by the drying processing procedure；Be humidified condensing unit, is arranged at second bleed air lines, and the humidification condensing unit includes humidifying device and condensation chamber, so that Second waste gas is washed and is humidified and condenses；AndConflux pipeline, connects first bleed air lines and second bleed air lines, so that first waste gas and second waste gas converge Stream.
- 2. organic exhaust gas as claimed in claim 1 pre-processes cleaning system, it is characterised in that also comprising the first filter element, First filter element is arranged at first bleed air lines, for filtering the shot-like particle in first waste gas.
- 3. organic exhaust gas as claimed in claim 2 pre-processes cleaning system, it is characterised in that also comprising the second filter element, Second filter element is arranged at the pipeline that confluxes, for filtering the shot-like particle in the waste gas that confluxes.
- 4. organic exhaust gas as claimed in claim 2 pre-processes cleaning system, it is characterised in that backflow bleed air lines are also included, The upstream of the backflow bleed air lines connects first bleed air lines and the pipeline junction or preceding of confluxing, by first air entraining pipe The waste gas of line completely or partially draws the Gas inlet tube for being back at least one of the application processing procedure and the drying processing procedure.
- 5. organic exhaust gas as claimed in claim 4 pre-processes cleaning system, it is characterised in that also comprising the 3rd filter element, 3rd filter element is arranged at the backflow bleed air lines, granular in the gas passed through in the backflow bleed air lines for filtering Thing.
- 6. organic exhaust gas as claimed in claim 2 pre-processes cleaning system, it is characterised in that also comprising organic matter concentration monitor Device, the organic concentration monitor are arranged at the inlet air of the backflow air entraining pipe, the Gas inlet tube of the application processing procedure and the drying processing procedure More than at least one of which of pipe, for monitoring the organic concentration in pipe.
- 7. organic exhaust gas as claimed in claim 2 pre-processes cleaning system, it is characterised in that also comprising the first air adjustment list Member, first air-conditioning unit are arranged on the Gas inlet tube of the application processing procedure, and gas in the Gas inlet tube is handled for adjusting It is at least one in shot-like particle, temperature, humidity, air inlet air quantity and air inlet wind speed.
- 8. organic exhaust gas as claimed in claim 2 pre-processes cleaning system, it is characterised in that also comprising the second air adjustment list Member, second air-conditioning unit are arranged on the Gas inlet tube of the drying processing procedure, and gas in the Gas inlet tube is handled for adjusting It is at least one in shot-like particle, temperature, humidity, air inlet air quantity and air inlet wind speed.
- 9. the organic exhaust gas pretreatment cleaning system as any one of claim 1 to 8, it is characterised in that also include back The wet unit of temperature control, the wet unit of control of rising again connect the pipeline that confluxes, and for directly or indirectly heating the remittance in the pipeline that confluxes Flow waste gas.
- 10. the organic exhaust gas pretreatment cleaning system as any one of claim 1 to 8, it is characterised in that the humidification is cold Solidifying unit has demister, and the demister is arranged at the downstream of the condensation chamber.
- 11. the organic exhaust gas pretreatment cleaning system as any one of claim 1 to 8, it is characterised in that the condensation chamber With condenser.
- 12. the organic exhaust gas pretreatment cleaning system as any one of claim 1 to 8, it is characterised in that the humidification fills The temperature for putting provided humidifying liquid is equal to or less than the dew-point temperature of second waste gas.
- 13. organic exhaust gas as claimed in claim 12 pre-processes cleaning system, it is characterised in that the condensation chamber has concrete dynamic modulus Layer.
- 14. a kind of organic waste-gas purification method of painting operation, for handling in painting operation first caused by application processing procedure Second waste gas caused by waste gas and drying processing procedure, it is characterised in that the organic waste-gas purification method includes：Be humidified condensing steps, is humidified and condenses the second waste gas caused by the drying processing procedure；AndConflux step, make humidification and condensed second waste gas conflux with the first waste gas caused by the application processing procedure it is useless to conflux Gas, the waste gas that confluxes introduce final pipe end reason equipment clean processing.
- 15. organic waste-gas purification method as claimed in claim 14, it is characterised in that this confluxes in step, the application processing procedure Caused first waste gas first after shot-like particle filtration treatment, then be humidified and condensation process after the second waste gas conflux.
- 16. organic waste-gas purification method as claimed in claim 15, it is characterised in that, will be through also comprising backflow bleed step The first waste gas after filtration treatment is brought out being back to the wind inlet end and the drying processing procedure of the application processing procedure through the bleed air lines that flow back Wind inlet end at least one of which.
- 17. organic waste-gas purification method as claimed in claim 16, it is characterised in that in the backflow bleed step, the backflow Air entraining pipe is provided with the 3rd filter element online, for filtering the shot-like particle in gas.
- 18. organic waste-gas purification method as claimed in claim 16, it is characterised in that also comprising organic concentration monitor step, At least one of which arrangement above of the Gas inlet tube of the backflow air entraining pipe, the Gas inlet tube of the application processing procedure and the drying processing procedure is organic Thing concentration monitoring device, for monitoring the organic concentration in pipe.
- 19. organic waste-gas purification method as claimed in claim 16, it is characterised in that also comprising air adjustment step, the painting At least one of which of the wind inlet end for filling processing procedure and the wind inlet end for drying processing procedure sets air-conditioning unit, to adjust processing inlet air The one at least within of shot-like particle, temperature, humidity, air inlet air quantity and air inlet wind speed in the gas at end.
- 20. the organic waste-gas purification method as any one of claim 14 to 19, it is characterised in that the waste gas warp that confluxes Heat, the temperature for the waste gas that makes to conflux is increased to 20-40 DEG C and humidity is reduced to below 80%RH, enters back into final pipe end Processing equipment.
- Turn 21. organic waste-gas purification method as claimed in claim 14, the wherein final pipe end processing equipment are zeolite concentration Wheel, activated carbon fluidized bed, adsorption tower or incinerator.
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| CN112594710A (en) * | 2020-11-25 | 2021-04-02 | 清华大学 | Method for treating volatile organic compounds in color plate preparation |
| CN113101780A (en) * | 2021-04-18 | 2021-07-13 | 冯杰 | Method and device for treating volatile organic compounds in waste gas and computer storage medium |
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| CN105597490A (en) * | 2014-11-20 | 2016-05-25 | 杰智环境科技股份有限公司 | Organic exhaust gas adsorption/desorption, concentration and purifying system and method thereof |
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| CN112594710A (en) * | 2020-11-25 | 2021-04-02 | 清华大学 | Method for treating volatile organic compounds in color plate preparation |
| CN113101780A (en) * | 2021-04-18 | 2021-07-13 | 冯杰 | Method and device for treating volatile organic compounds in waste gas and computer storage medium |
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