CN114699875A - Improved environment-friendly type identification label paint spraying process - Google Patents
Improved environment-friendly type identification label paint spraying process Download PDFInfo
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- CN114699875A CN114699875A CN202111558767.2A CN202111558767A CN114699875A CN 114699875 A CN114699875 A CN 114699875A CN 202111558767 A CN202111558767 A CN 202111558767A CN 114699875 A CN114699875 A CN 114699875A
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- 239000003973 paint Substances 0.000 title claims abstract description 84
- 238000005507 spraying Methods 0.000 title claims abstract description 41
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000008569 process Effects 0.000 title claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 90
- 239000002912 waste gas Substances 0.000 claims abstract description 58
- 239000003595 mist Substances 0.000 claims abstract description 41
- 230000007246 mechanism Effects 0.000 claims abstract description 24
- 238000000746 purification Methods 0.000 claims abstract description 24
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 20
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000010815 organic waste Substances 0.000 claims abstract description 16
- 239000002184 metal Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 13
- 238000012545 processing Methods 0.000 claims abstract description 11
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 10
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 10
- 239000000126 substance Substances 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000005336 cracking Methods 0.000 claims abstract description 7
- 230000002195 synergetic effect Effects 0.000 claims abstract description 7
- 238000006479 redox reaction Methods 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims description 41
- 230000015556 catabolic process Effects 0.000 claims description 36
- 238000006731 degradation reaction Methods 0.000 claims description 36
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 claims description 27
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 25
- 238000006555 catalytic reaction Methods 0.000 claims description 20
- 229910052760 oxygen Inorganic materials 0.000 claims description 19
- 239000001301 oxygen Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 18
- 238000007539 photo-oxidation reaction Methods 0.000 claims description 17
- 239000002245 particle Substances 0.000 claims description 16
- 230000003197 catalytic effect Effects 0.000 claims description 12
- 229920000742 Cotton Polymers 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 10
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 230000007613 environmental effect Effects 0.000 claims description 8
- 238000010422 painting Methods 0.000 claims description 8
- 150000003384 small molecules Chemical class 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 7
- 238000000354 decomposition reaction Methods 0.000 claims description 6
- 230000006978 adaptation Effects 0.000 claims description 5
- 238000007254 oxidation reaction Methods 0.000 claims description 5
- 239000012855 volatile organic compound Substances 0.000 claims description 4
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 claims description 3
- 230000000593 degrading effect Effects 0.000 claims description 3
- 230000001678 irradiating effect Effects 0.000 claims description 3
- 150000003568 thioethers Chemical class 0.000 claims description 3
- 239000008096 xylene Substances 0.000 claims description 3
- 238000009826 distribution Methods 0.000 claims description 2
- 238000011045 prefiltration Methods 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract 1
- 238000005728 strengthening Methods 0.000 abstract 1
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- 229910052799 carbon Inorganic materials 0.000 description 2
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- 238000007592 spray painting technique Methods 0.000 description 2
- 239000003463 adsorbent Substances 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
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- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- 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
- B01D53/007—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 irradiation
-
- 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
- B01D53/005—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 heat treatment
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/346—Controlling the process
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/76—Gas phase processes, e.g. by using aerosols
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D53/8603—Removing sulfur compounds
- B01D53/8612—Hydrogen sulfide
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
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- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8678—Removing components of undefined structure
- B01D53/8687—Organic components
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- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/869—Multiple step processes
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- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8696—Controlling the catalytic process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2251/00—Reactants
- B01D2251/10—Oxidants
- B01D2251/104—Ozone
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01D2257/702—Hydrocarbons
- B01D2257/7027—Aromatic hydrocarbons
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D2257/708—Volatile organic compounds V.O.C.'s
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B01D—SEPARATION
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- B01D2258/02—Other waste gases
- B01D2258/0258—Other waste gases from painting equipments or paint drying installations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2259/00—Type of treatment
- B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
- B01D2259/804—UV light
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- Engineering & Computer Science (AREA)
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- Environmental & Geological Engineering (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention relates to the technical field of sign manufacturing, and discloses an improved environment-friendly sign board paint spraying process, which carries out oxidation-reduction reaction on a compound through a catalyst, and decomposes the organic waste gas substance in a synergistic manner to degrade and convert the organic waste gas substance into a low molecular compound, water and carbon dioxide, thereby realizing the full purification of the organic waste gas containing benzene substances, realizing the environment-friendly paint spraying of a sign board, realizing the circulating purification through the arrangement of a waste gas circulating pipe and the like, thereby ensuring the full purification of paint mist waste gas, increasing the irradiation intensity of ultraviolet rays while increasing the gas circulation path through the mutual matching of a high-energy pipe which is spirally arranged and a second high-energy UV ultraviolet lamp inside the high-energy pipe, strengthening the treatment effect of the waste gas, simultaneously indirectly improving the temperature of the waste gas in the high-energy pipe through a heating metal cover, promoting the molecule cracking of the waste gas, and fully embodying the auxiliary purification effect, through rotatable integrated processing mechanism, guaranteed the purification rate to the waste gas when high strength operation.
Description
Technical Field
The invention relates to the technical field of sign manufacturing, in particular to an improved environment-friendly sign board paint spraying process.
Background
The signboard is a product combined by fusion planning, building, space, sculpture, logic, color, aesthetics and material, is not a simple character, is not a so-called board, is a unique artistic work integrated with the environment, and mostly needs to be painted in the manufacturing process.
In the prior art, a conventional signboard paint spraying process is simple, organic waste gas molecules are cracked by adopting a photocatalytic oxidation method or paint particles are adsorbed by adopting a water curtain method mostly, and when the paint spraying operation intensity is high, the organic waste gas generated in the paint spraying process is not thoroughly treated by the conventional method, so that the conditions such as air pollution and the like are caused, and therefore, the improved environment-friendly signboard paint spraying process is disclosed for meeting the environment-friendly paint spraying requirement of a signboard.
Disclosure of Invention
Technical problem to be solved
Aiming at the defects of the prior art, the invention provides an improved environment-friendly sign board paint spraying process, which has the advantages of full environment protection and the like and solves a series of problems of environmental pollution and the like easily caused when the sign board is painted in the prior art.
(II) technical scheme
In order to achieve the purpose, the invention provides the following technical scheme: an improved environment-friendly sign board paint spraying process specifically comprises the following steps:
s1, adsorption: a honeycomb adsorption box is adopted to suck paint mist generated during paint spraying and convey the paint mist into photo-oxidation catalysis equipment;
s2, cracking: irradiating the paint mist by using a specially-made high-energy UV light beam in the photo-oxygen catalysis equipment to crack waste gas molecules in the paint mist;
s3, bonding: the high ozone in the degradation box decomposes oxygen molecules in the air to generate free oxygen and ozone, so that paint mist molecules in a free state and the ozone are oxidized and combined into small-molecule harmless or low-harm compounds;
s4, degradation: the catalyst in the degradation box performs oxidation-reduction reaction on the compound generated under S3, and the organic waste gas substance is degraded and converted into low molecular compounds, water and carbon dioxide through synergistic decomposition;
s5, detection: and the particle catcher detects the gas degraded by the S4, and if the gas meets the standard, the gas is discharged, and if the gas does not meet the standard, the gas is conveyed into the waste gas conveying pipe through the waste gas circulating pipe for circulating purification.
An improved environment-friendly sign board paint spraying device adopts the improved environment-friendly sign board paint spraying process in S1-S5, and comprises a honeycomb adsorption box, a photo-oxidation catalysis device, a turbofan fan and an exhaust chimney which are communicated with each other, wherein the honeycomb adsorption box is used for preliminarily filtering paint mist, the photo-oxidation catalysis device is used for degrading organic molecules in the paint mist and comprises a degradation box capable of generating ozone, the turbofan is used for extracting and conveying gas, and the exhaust chimney is used for discharging purified gas reaching the standard;
a particle catcher used for detecting the waste gas treatment degree is further arranged between the volute fan and the degradation box, and the output end of the volute fan is also communicated with a circulating component capable of circularly treating the waste gas;
still be equipped with the preliminary treatment subassembly that can carry out the prefiltration edulcoration to waste gas in the honeycomb adsorption tank, the preliminary treatment subassembly contains a plurality of rotatable integrated processing mechanisms.
Preferably, be equipped with a plurality of even and all with the corresponding inlet end in position of spraying paint of distribution on the honeycomb adsorbs the case, the honeycomb adsorbs still to be equipped with on the case and carries out the active carbon of one-level filtration and adsorb the cotton to the coating cloud, just the position of inlet end with the active carbon reaches the position homogeneous phase that adsorbs the cotton corresponds, the output that the honeycomb adsorbed the case has the exhaust duct through the fixed intercommunication of communicating pipe, just the other end of exhaust duct runs through one side of light oxygen catalytic apparatus extends to in the light oxygen catalytic apparatus.
Preferably, one end of the waste gas conveying pipe extending into the photo-oxygen catalysis equipment is communicated with the input end of the degradation box through a main circulation pipe, the output end of the degradation box is communicated with the input end of the turbofan fan through a detection pipe, the output end of the turbofan fan is communicated with the bottom end of the exhaust chimney through a discharge pipe, the bottom end of the exhaust chimney is in a closed state, and the top end of the exhaust chimney is used for discharging gas into the atmosphere;
the particle catcher used for detecting whether the gas treated by the degradation box reaches the emission standard is fixedly communicated with the detection pipe.
Preferably, a first high-energy UV ultraviolet lamp is arranged in the main flow pipe, and is used for emitting ultraviolet rays capable of destroying molecular bonds of sulfides such as H2S, VOCs, benzene, toluene and xylene;
the degradation box can decompose oxygen molecules in the air to generate ozone, and can oxidize and combine the free exhaust gas molecules and the ozone into small-molecule harmless or low-harm compounds;
and a catalyst is also arranged in the degradation box and is used for carrying out a synergistic decomposition oxidation reaction on the waste gas by matching with the high-energy UV ultraviolet lamp and the ozone to degrade and convert the waste gas into low-molecular compounds, water and carbon dioxide.
Preferably, the circulation module comprises an exhaust gas circulation pipe in communication with both the exhaust gas delivery pipe and the exhaust pipe;
one side of delivery pipe still be equipped with two respectively with the delivery pipe reaches the corresponding valve motor in exhaust gas circulation pipe position, two the output of valve motor runs through respectively the delivery pipe with exhaust gas circulation pipe and extend to respectively the delivery pipe with in the exhaust gas circulation pipe, two the output of delivery pipe still respectively fixedly connected with the delivery pipe reaches the first butterfly valve of exhaust gas circulation pipe inside wall adaptation.
Preferably, a high-energy tube communicated with the main flow-through tube is further arranged in the photo-oxidation catalysis equipment, the high-energy tube is spiral and is communicated with the input end of the degradation box, and a second high-energy UV (ultraviolet) lamp which is matched with the high-energy tube and is spirally arranged is further fixedly mounted on the inner wall of the high-energy tube;
still be equipped with auxiliary motor in the light oxygen catalytic apparatus, auxiliary motor's output extends to in the high-energy tube and fixedly connected with the second butterfly valve of high-energy tube inner wall adaptation.
Preferably, the high-energy pipe is further fixedly sleeved with a metal cover, the outer wall of the metal cover is sleeved with a multi-turn spiral coil, two ends of the spiral coil are externally connected with an explosion-proof power supply, and the spiral coil can promote the metal cover to generate heat through an eddy current effect after forming a passage.
Preferably, the pretreatment assembly further comprises a turntable capable of driving the plurality of integrated treatment mechanisms at the same relative position to rotate simultaneously, a rectangular cavity is formed in the top of the honeycomb adsorption box corresponding to the output position of the honeycomb adsorption box, a rotating motor is further fixedly installed in the honeycomb adsorption box, an output shaft of the rotating motor is rotatably sleeved in the honeycomb adsorption box and extends into the rectangular cavity, the top end of the output shaft of the rotating motor is further fixedly connected with the turntable, and the turntable is sleeved with the plurality of uniformly distributed integrated treatment mechanisms;
the integrated treatment mechanism can not only comprise adsorption cotton and activated carbon for filtering paint mist waste gas.
(III) advantageous effects
Compared with the prior art, the invention provides an improved environment-friendly sign board paint spraying process, which has the following beneficial effects:
1. the improved environment-friendly type identification label paint spraying process comprises the steps of sucking generated paint mist through a honeycomb adsorption box, carrying out pretreatment through an integrated treatment mechanism, and then conveying the paint mist into a photo-oxidation catalysis device through a communicating pipe and a waste gas conveying pipe, so that ultraviolet light beams generated by a first specially-made high-energy UV ultraviolet lamp in a main flow pipe are utilized to irradiate the paint mist, waste gas molecules in the paint mist are promoted to be cracked, paint mist molecules in a free state are generated, then, high ozone in a degradation box is used for decomposing oxygen molecules in air to generate ozone, the paint mist molecules in the free state and ozone are oxidized and combined into small molecules to form harmless or low-harmful compounds, the compounds are subjected to oxidation reduction reaction through a catalyst, organic waste gas substances are degraded and converted into low-molecular compounds, carbon dioxide water and carbon dioxide, and the organic waste gas containing benzene substances are fully purified, and are discharged into the atmosphere through an exhaust chimney under the action of a turbofan fan, realize the environmental protection paint spraying to the signboard.
2. This improvement environment-friendly sign board paint spraying process, organic waste gas after the purification when discharging to the exhaust chimney in, preferentially through the detection of particle trapper, if cause such as reasons such as the operation intensity of spraying paint lead to the particle trapper to detect that the tail gas after the purification is still not up to standard, then close the butterfly valve in the discharge tube rapidly and correspondingly open the intraductal butterfly valve of exhaust gas circulation, thereby carry the tail gas that does not up to standard again to the exhaust gas delivery pipe through the exhaust gas circulation pipe in, accomplish circulation purification, thereby guaranteed the complete purification to coating cloud waste gas.
3. This improvement environment-friendly sign board paint spraying process, when needing to circulate the purification to tail gas, through the operation of auxiliary motor, the high energy pipe passageway is opened in the initiative, thereby make partial waste gas get into and assist in the high energy pipe and purify, the high energy pipe of arranging through the spiral and mutually supporting of inside second high energy UV ultraviolet lamp, ultraviolet irradiation intensity has been improved when increasing gas circulation route, strengthen the treatment effect to waste gas, and simultaneously, the indirect temperature that improves waste gas in the high energy pipe through the metal covering that generates heat, also can promote the schizolysis of waste gas molecule, fully embody supplementary purifying effect.
4. This improvement environment-friendly sign board paint spraying process, through the rotating electrical machines operation for the carousel rotates, then rotates a plurality of integrated processing mechanism on the same relative position, makes the integrated processing mechanism in the original position changed, thereby can get rid of the possibility that integrated processing mechanism became invalid to waste gas pretreatment, can ensure the normal operating of environmental protection paint spraying operation to the purification rate of waste gas when the high strength operation again.
Drawings
FIG. 1 is a schematic view of a first perspective three-dimensional structure of an application scenario of the present invention;
FIG. 2 is a schematic perspective view of a second perspective view of an application scenario of the present invention;
FIG. 3 is a schematic view of the first view of the operating principle of the present invention;
FIG. 4 is a schematic view of a second perspective of the operating principle of the present invention;
FIG. 5 is a schematic perspective view of the photo-oxidation catalytic apparatus according to the present invention;
FIG. 6 is a schematic sectional view of the photo-oxidation catalytic apparatus according to the present invention;
FIG. 7 is a schematic perspective view of a honeycomb adsorbent box according to the present invention;
FIG. 8 is an enlarged view of the structure at A in FIG. 7 according to the present invention.
In the figure: 1. a honeycomb adsorption tank; 2. a photo-oxidative catalysis device; 3. a turbofan fan; 4. an exhaust stack; 5. a communicating pipe; 6. an exhaust gas delivery pipe; 7. a detection tube; 8. a discharge pipe; 9. an exhaust gas circulation pipe; 10. a valve motor; 11. a particle trap; 12. a degradation box; 13. a main flow pipe; 14. a high energy tube; 15. an auxiliary motor; 16. a metal cover; 17. a helical coil; 18. a rectangular cavity; 19. a rotating electric machine; 20. a turntable; 21. and integrating a processing mechanism.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As described in the background of the invention, the prior art is not satisfactory, and the present application proposes an improved environment-friendly sign board painting process in order to solve the above technical problems.
In a typical embodiment of the present application, as shown in fig. 1 to 8, an improved environment-friendly signboard spray painting process specifically includes the following steps:
s1, adsorption: a honeycomb adsorption box is adopted to suck paint mist generated during paint spraying and convey the paint mist into photo-oxidation catalysis equipment;
s2, cracking: irradiating the paint mist by using a specially-made high-energy UV light beam in the photo-oxygen catalysis equipment to crack waste gas molecules in the paint mist;
s3, bonding: the high ozone in the degradation box decomposes oxygen molecules in the air to generate free oxygen and ozone, so that paint mist molecules in a free state and the ozone are oxidized and combined into small-molecule harmless or low-harm compounds;
s4, degradation: the catalyst in the degradation box performs oxidation-reduction reaction on the compound generated under S3, and the organic waste gas substance is degraded and converted into low molecular compound, water and carbon dioxide through synergistic decomposition;
s5, detection: the particle catcher detects the gas degraded by S4, if the gas reaches the standard, the gas is discharged, and if the gas does not reach the standard, the gas is conveyed into the waste gas conveying pipe through the waste gas circulating pipe for circulating purification.
An improved environment-friendly sign board paint spraying device adopts the improved environment-friendly sign board paint spraying process in S1-S5, and comprises a honeycomb adsorption box 1, a photo-oxidation catalysis device 2, a turbofan fan 3 and an exhaust chimney 4 which are communicated with each other, wherein the honeycomb adsorption box 1 is used for primarily filtering paint mist, the photo-oxidation catalysis device 2 is used for degrading organic molecules in the paint mist and comprises a degradation box 12 capable of generating ozone, the turbofan fan 3 is used for extracting and conveying gas, and the exhaust chimney 4 is used for discharging the purified gas reaching the standard;
a particle catcher 11 for detecting the waste gas treatment degree is also arranged between the volute fan 3 and the degradation box 12, and the output end of the volute fan 3 is also communicated with a circulating component capable of circularly treating the waste gas;
still be equipped with the preliminary treatment subassembly that can carry out the prefiltering edulcoration to waste gas in the honeycomb adsorption tank 1, the preliminary treatment subassembly contains a plurality of rotatable integrated processing mechanisms 21.
As an embodiment in this embodiment, be equipped with a plurality of evenly distributed and all with the corresponding inlet end in position of spraying paint on honeycomb adsorption tank 1, it carries out the activated carbon of level filtering and adsorbs the cotton still to be equipped with on the honeycomb adsorption tank 1 to the coating cloud, and the position of inlet end corresponds with activated carbon and the position homogeneous phase that adsorbs the cotton, the output of honeycomb adsorption tank 1 has exhaust duct 6 through the fixed intercommunication of communicating pipe 5, and exhaust duct 6's the other end runs through one side of light oxygen catalytic apparatus 2 and extends to in the light oxygen catalytic apparatus 2, through set up on honeycomb adsorption tank 1 and carry out the activated carbon of level filtering and adsorb the cotton to the coating cloud, can tentatively clear away the coating cloud that produces in-process of spraying paint, block the paint molecule of partly great diameter, realize preliminary purification.
Further, in the above scheme, one end of the exhaust gas conveying pipe 6 extending into the photo-oxidation catalytic device 2 is communicated with the input end of the degradation box 12 through the main circulation pipe 13, the output end of the degradation box 12 is communicated with the input end of the turbofan fan 3 through the detection pipe 7, the output end of the turbofan fan 3 is communicated with the bottom end of the exhaust chimney 4 through the discharge pipe 8, the bottom end of the exhaust chimney 4 is in a closed state, the top end of the exhaust chimney 4 is used for discharging gas into the atmosphere, and by arranging the turbofan fan 3, paint mist generated in the paint spraying process can be intensively treated, and the exhaust gas can be guided;
in this embodiment, still fixed intercommunication has the particle trapper 11 that is used for detecting whether the gas after degradation case 12 is handled reaches emission standard on the sense tube 7, through setting up particle trapper 11, can detect the coating cloud waste gas under the different speed of spraying paint, conveniently in time opens the circulation subassembly, circulates the purification to the coating cloud waste gas that does not reach standard, has ensured purifying effect.
As an implementation manner in this embodiment, a first high-energy UV ultraviolet lamp is disposed in the main flow pipe 13, and is used for emitting ultraviolet rays capable of destroying molecular bonds of sulfides H2S, VOCs, benzene, toluene, and xylene, and by arranging a conventional first high-energy UV ultraviolet lamp, the requirement of purifying waste gas at a normal paint spraying rate can be met;
in the present embodiment, the degradation box 12 can decompose oxygen molecules in the air to generate ozone, and can oxidize and combine the free exhaust gas molecules and the ozone into small-molecule harmless or low-harmful compounds;
in this embodiment, the degradation box 12 is further provided with a catalyst, and the catalyst is used for cooperating with a high-energy UV ultraviolet lamp and ozone to perform a synergistic decomposition oxidation reaction on the exhaust gas, so as to degrade and convert the exhaust gas into low-molecular compounds, water and carbon dioxide, thereby changing waste into valuable and improving the utilization of the spray painting exhaust gas.
Further, in the above scheme, the circulation module comprises an exhaust gas circulation pipe 9 communicated with the exhaust gas conveying pipe 6 and the exhaust pipe 8, and by arranging the exhaust gas circulation pipe 9, organic exhaust gas which does not reach the standard is discharged into the exhaust gas conveying pipe 6 for secondary purification if necessary;
in this embodiment, two valve motors 10 are further disposed on one side of the exhaust pipe 8 and correspond to the exhaust pipe 8 and the exhaust gas circulation pipe 9, output ends of the two valve motors 10 respectively penetrate through the exhaust pipe 8 and the exhaust gas circulation pipe 9 and respectively extend into the exhaust pipe 8 and the exhaust gas circulation pipe 9, output ends of the two exhaust pipes 8 are respectively and fixedly connected with first butterfly valves matched with inner walls of the exhaust pipe 8 and the exhaust gas circulation pipe 9, and the first butterfly valves are disposed to facilitate opening and closing of the exhaust pipe 8 and the exhaust gas circulation pipe 9 and strictly control exhaust gas emission.
As an implementation manner in this embodiment, a high-energy tube 14 communicated with a main flow-through tube 13 is further disposed in the photo-oxidation catalysis device 2, the high-energy tube 14 is helical and is communicated with an input end of the degradation tank 12, a second high-energy UV ultraviolet lamp adapted to the high-energy tube 14 and arranged in a helical manner is further fixedly mounted on an inner wall of the high-energy tube 14, and by disposing the second high-energy UV ultraviolet lamp arranged in a helical manner, an irradiation stroke of ultraviolet rays on waste gas is improved, and a flow path of the waste gas can be increased by matching with the helical high-energy tube 14, so that paint mist can be sufficiently purified under high-speed paint spraying;
in this embodiment, still be equipped with auxiliary motor 15 in the light oxygen catalytic apparatus 2, the output of auxiliary motor 15 extends to in the high energy pipe 14 and fixedly connected with the 14 inner wall looks adaptations of high energy pipe second butterfly valve, through setting up the second butterfly valve, is convenient for control high energy pipe 14 whether closed.
Further, in the above scheme, the high-energy tube 14 is further fixedly sleeved with a metal cover 16, the outer wall of the metal cover 16 is sleeved with a multi-turn spiral coil 17, two ends of the spiral coil 17 are externally connected with an explosion-proof power supply, the spiral coil 17 can promote the metal cover 16 to generate heat through an eddy current effect after forming a passage, and the temperature of the high-energy tube 14 is increased by heating the metal cover 16, so that the activity degree of gas molecules in the high-energy tube is increased, a cracking reaction is promoted, and the cracking treatment of organic waste gas is accelerated.
As an implementation manner in this embodiment, the pretreatment module further includes a turntable 20 capable of driving the multiple integrated treatment mechanisms 21 at the same relative position to rotate simultaneously, a rectangular cavity 18 is disposed at the top of the honeycomb adsorption tank 1 corresponding to the output position of the honeycomb adsorption tank, a rotating motor 19 is further fixedly mounted in the honeycomb adsorption tank 1, the output shaft of the rotating motor 19 is rotatably sleeved in the honeycomb adsorption tank 1 and extends into the rectangular cavity 18, the top end of the output shaft of the rotating motor 19 is further fixedly connected with the turntable 20, the turntable 20 is sleeved with the multiple integrated treatment mechanisms 21 uniformly distributed, and the rotating motor 19 operates to cooperate with the high-energy tube 14, so that different integrated treatment mechanisms 21 can be changed in due time, and the pretreatment effect on paint mist is ensured in due time;
in this embodiment, the integrated processing mechanism 21 may not only include the adsorption cotton and the activated carbon for filtering the paint mist exhaust gas, but also may be configured with a plurality of effective paint mist processing devices or elements by setting the integrated processing mechanism 21, thereby improving the practicability of the honeycomb adsorption box 1.
The working principle of the invention is as follows: when the identification label is painted, the generated paint mist is sucked in through the honeycomb adsorption box 1, is pretreated by the integrated treatment mechanism 21 and then is conveyed into the photo-oxidation catalysis equipment 2 through the communicating pipe 5 and the waste gas conveying pipe 6, so that ultraviolet light beams generated by a specially-made first high-energy UV ultraviolet lamp in the main circulating pipe 13 are utilized to irradiate the paint mist, waste gas molecules in the paint mist are promoted to be cracked, paint mist molecules in a free state are generated, then, oxygen molecules in the air are decomposed by high ozone in the degradation box 12 to generate ozone, the paint mist molecules in the free state and the ozone are combined into small molecule harmless or low-harm compounds through oxidation, the compounds are subjected to oxidation reduction reaction through a catalyst, organic waste gas substances are degraded and converted into low molecule compounds, water and carbon dioxide, and therefore, the organic waste gas containing benzene substances is fully purified, and is discharged to the atmosphere by an exhaust chimney 4 under the action of a turbofan fan 3, so that the environment-friendly paint spraying of the signboard is realized;
when the purified organic waste gas is discharged into the exhaust chimney 4, the organic waste gas is preferentially detected by the particle catcher 11, if the particle catcher 11 detects that the purified tail gas still does not reach the standard due to high painting operation strength and the like, the butterfly valve in the discharge pipe 8 is quickly closed and the butterfly valve in the waste gas circulation pipe 9 is correspondingly opened, so that the tail gas which does not reach the standard is conveyed into the waste gas conveying pipe 6 again through the waste gas circulation pipe 9, the circular purification is completed, and the complete purification of the paint mist waste gas is ensured;
when the tail gas needs to be circularly purified, the auxiliary motor 15 is operated to actively open the channel of the high-energy tube 14, so that part of the waste gas enters the high-energy tube 14 for auxiliary purification, the high-energy tube 14 which is spirally arranged and a second high-energy UV ultraviolet lamp inside the high-energy tube are matched with each other, the gas circulation path is increased, the ultraviolet irradiation intensity is improved, the treatment effect on the waste gas is enhanced, meanwhile, the temperature of the waste gas in the high-energy tube 14 is indirectly increased through the heating metal cover 16, the cracking of waste gas molecules can be promoted, and the auxiliary purification effect is fully embodied;
when the auxiliary purification phenomenon appears, the rotating motor 19 is operated, so that the rotating disc 20 rotates, the integrated treatment mechanisms 21 on the same relative position are rotated, the integrated treatment mechanisms 21 on the original positions are replaced, the possibility that the integrated treatment mechanisms 21 fail in waste gas pretreatment can be eliminated, the purification rate of waste gas in high-strength operation can be increased, and the normal operation of environment-friendly paint spraying operation is ensured.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. An improved environment-friendly sign board paint spraying process is characterized in that: the improved environment-friendly type identification label paint spraying process specifically comprises the following steps:
s1, adsorption: a honeycomb adsorption box is adopted to suck paint mist generated during paint spraying and convey the paint mist into photo-oxidation catalysis equipment;
s2, cracking: irradiating the paint mist by using a specially-made high-energy UV light beam in the photo-oxygen catalysis equipment to crack waste gas molecules in the paint mist;
s3, bonding: the high ozone in the degradation box decomposes oxygen molecules in the air to generate free oxygen and ozone, so that paint mist molecules in a free state and the ozone are oxidized and combined into small-molecule harmless or low-harm compounds;
s4, degradation: the catalyst in the degradation box performs oxidation-reduction reaction on the compound generated under S3, and the organic waste gas substance is degraded and converted into low molecular compounds, water and carbon dioxide through synergistic decomposition;
s5, detection: and the particle catcher detects the gas degraded by the S4, and if the gas meets the standard, the gas is discharged, and if the gas does not meet the standard, the gas is conveyed into the waste gas conveying pipe through the waste gas circulating pipe for circulating purification.
2. An improved environment-friendly sign board paint spraying device, which utilizes the improved environment-friendly sign board paint spraying process as claimed in claim 1, and comprises a honeycomb adsorption tank (1), a photo-oxidation catalysis device (2), a turbofan fan (3) and an exhaust chimney (4) which are communicated with each other, and is characterized in that: the honeycomb adsorption box (1) is used for primarily filtering paint mist, the photo-oxidation catalysis equipment (2) is used for degrading organic molecules in the paint mist and comprises a degradation box (12) capable of generating ozone, the turbofan fan (3) is used for extracting and conveying gas, and the exhaust chimney (4) is used for discharging the gas which reaches the standard after purification;
a particle catcher (11) for detecting the waste gas treatment degree is further arranged between the volute fan (3) and the degradation box (12), and the output end of the volute fan (3) is also communicated with a circulating component capable of circularly treating the waste gas;
still be equipped with the preliminary treatment subassembly that can carry out the prefiltration edulcoration to waste gas in honeycomb adsorption tank (1), the preliminary treatment subassembly contains a plurality of rotatable integrated processing mechanisms (21).
3. The improved environmental friendly sign painting apparatus of claim 2, wherein: be equipped with a plurality of even and all with the corresponding inlet end in position of spraying paint of distribution on honeycomb adsorption tank (1), honeycomb adsorption tank (1) is gone up and still is equipped with the activated carbon that carries out the one-level filtration to the coating cloud and adsorbs the cotton, just the position of inlet end with the activated carbon reaches the position homogeneous phase that adsorbs the cotton corresponds, the output of honeycomb adsorption tank (1) has exhaust duct (6) through communicating pipe (5) fixed intercommunication, just the other end of exhaust duct (6) runs through one side of light oxygen catalytic apparatus (2) extends to in light oxygen catalytic apparatus (2).
4. The improved environmental friendly sign painting apparatus of claim 3, wherein: one end of the waste gas conveying pipe (6) extending into the photo-oxygen catalysis equipment (2) is communicated with the input end of the degradation box (12) through a main circulation pipe (13), the output end of the degradation box (12) is communicated with the input end of the turbofan fan (3) through a detection pipe (7), the output end of the turbofan fan (3) is communicated with the bottom end of the exhaust chimney (4) through a discharge pipe (8), the bottom end of the exhaust chimney (4) is in a closed state, and the top end of the exhaust chimney (4) is used for discharging gas into the atmosphere;
the detection pipe (7) is also fixedly communicated with the particle catcher (11) which is used for detecting whether the gas treated by the degradation box (12) meets the emission standard.
5. The improved environmental friendly sign painting apparatus of claim 4, wherein: a first high-energy UV ultraviolet lamp is arranged in the main circulating pipe (13) and used for emitting ultraviolet rays capable of destroying molecular bonds of sulfides H2S, VOCs (volatile organic compounds), benzene, toluene and xylene;
the degradation box (12) can decompose oxygen molecules in the air to generate ozone, and can oxidize and combine the free exhaust gas molecules and the ozone into small-molecule harmless or low-harm compounds;
and a catalyst is also arranged in the degradation box (12), and is used for carrying out a synergistic decomposition oxidation reaction on the waste gas by matching with the high-energy UV ultraviolet lamp and the ozone, so that the waste gas is degraded and converted into a low-molecular compound, water and carbon dioxide.
6. The improved environment-friendly sign board painting equipment as claimed in claim 5, wherein: the circulation component comprises an exhaust gas circulation pipe (9) communicated with the exhaust gas conveying pipe (6) and the discharge pipe (8);
one side of delivery pipe (8) still be equipped with two respectively with delivery pipe (8) reaches corresponding valve motor (10) in exhaust gas circulation pipe (9) position, two the output of valve motor (10) runs through respectively delivery pipe (8) with exhaust gas circulation pipe (9) and extend to respectively delivery pipe (8) with in exhaust gas circulation pipe (9), two the output of delivery pipe (8) still respectively fixedly connected with delivery pipe (8) reaches the first butterfly valve of exhaust gas circulation pipe (9) inner wall looks adaptation.
7. The improved environmental friendly sign painting apparatus of claim 6, wherein: the photo-oxidation catalysis equipment (2) is also internally provided with a high-energy tube (14) communicated with the main circulation tube (13), the high-energy tube (14) is spiral and is communicated with the input end of the degradation box (12), and the inner wall of the high-energy tube (14) is also fixedly provided with a second high-energy UV (ultraviolet) lamp which is matched with the high-energy tube and is spirally arranged;
still be equipped with auxiliary motor (15) in photo-oxygen catalytic apparatus (2), the output of auxiliary motor (15) extends to in high energy pipe (14) and fixedly connected with the second butterfly valve of high energy pipe (14) inner wall looks adaptation.
8. The improved environmental friendly sign painting apparatus of claim 7, wherein: the high-energy tube (14) is further fixedly sleeved with a metal cover (16), the outer wall of the metal cover (16) is sleeved with a multi-turn spiral coil (17), two ends of the spiral coil (17) are externally connected with an explosion-proof power supply, and the spiral coil (17) can promote the metal cover (16) to generate heat through an eddy current effect after forming a passage.
9. The improved environmental friendly sign painting equipment according to claim 2 or 8, wherein: the pretreatment assembly further comprises a turntable (20) which can drive the integrated treatment mechanisms (21) on the same relative position to rotate simultaneously, a rectangular cavity (18) is formed in the top of the honeycomb adsorption box (1) corresponding to the output position of the honeycomb adsorption box, a rotating motor (19) is further fixedly installed in the honeycomb adsorption box (1), an output shaft of the rotating motor (19) is rotatably sleeved in the honeycomb adsorption box (1) and extends into the rectangular cavity (18), the top end of the output shaft of the rotating motor (19) is further fixedly connected with the turntable (20), and the turntable (20) is sleeved with the integrated treatment mechanisms (21) which are uniformly distributed;
the integrated treatment mechanism (21) can not only contain adsorption cotton and activated carbon for filtering paint mist waste gas.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111558767.2A CN114699875A (en) | 2021-12-20 | 2021-12-20 | Improved environment-friendly type identification label paint spraying process |
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| CN202111558767.2A CN114699875A (en) | 2021-12-20 | 2021-12-20 | Improved environment-friendly type identification label paint spraying process |
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| CN207462992U (en) * | 2017-10-20 | 2018-06-08 | 四川宏凯化工科技有限公司 | A kind of paint exhaust treatment device |
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