CN114425547A - Adsorption catalysis type waste gas treatment system and method - Google Patents
Adsorption catalysis type waste gas treatment system and method Download PDFInfo
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- CN114425547A CN114425547A CN202210357614.XA CN202210357614A CN114425547A CN 114425547 A CN114425547 A CN 114425547A CN 202210357614 A CN202210357614 A CN 202210357614A CN 114425547 A CN114425547 A CN 114425547A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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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
- B01D53/02—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
- B01D53/04—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 stationary adsorbents
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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
- B01D53/75—Multi-step processes
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- 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
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
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- 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 invention relates to the technical field of waste gas treatment, and discloses an adsorption catalysis type waste gas treatment system and a method, wherein the adsorption catalysis type waste gas treatment system comprises a filtering component, a catalysis component, a spraying component and an adsorption component, the filtering component, the catalysis component and the spraying component are all arranged in a treatment chamber, an exhaust component is arranged in a spraying module and connected with the treatment chamber, a support component is arranged in the spraying chamber and comprises a height adjusting component and a first interface, the first interface is connected with the treatment chamber, and the second interface is connected with an air nozzle. Realized that industrial waste gas that contains a large amount of particles and organic matter that can be quick will produce when spraying paint towards the paint spraying table direction absorbs, avoid industrial waste gas to move the problem that can just absorb after a certain distance.
Description
Technical Field
The invention relates to the technical field of waste gas treatment, in particular to an adsorption catalysis type waste gas treatment system and method.
Background
In the present stage, in order to protect the health of workers and maintain the working environment, a dry type paint spraying platform is usually used to achieve the above effects, and the protection of the working environment is achieved by sucking and filtering paint mist, but for large-sized workpieces, such as furniture and the like, the paint spraying space is large, and the paint mist suction ports are generally arranged on the peripheral wall body, so that the effect of quickly sucking and treating the paint mist is difficult to achieve, and the paint spraying work is generally in a flow line type batch mode, the duration of spraying paint is long, can continue a large amount of productions and contain a large amount of granule and organic matter industrial waste gas, if can not be better realize the suction treatment of coating cloud, can seriously threaten workman healthy, simultaneously, this type of device inhales the back with the coating cloud, just discharges after generally only carrying out filtration treatment, wherein still contains more pollutant, leads to air pollution to threaten workman healthy, to above-mentioned problem, proposed this application.
Disclosure of Invention
The invention aims to provide an adsorption catalysis type waste gas treatment system and method, which are used for solving the problems of low efficiency and poor treatment effect in a paint mist suction treatment process in the prior art.
The invention is realized by the following technical scheme.
The adsorption catalysis type waste gas treatment system comprises a paint spraying module, wherein a paint spraying chamber, a filtering assembly, a catalyzing assembly, a spraying assembly and an adsorption assembly are arranged in the paint spraying module, the filtering assembly, the catalyzing assembly and the spraying assembly are all arranged in a treatment chamber, an exhaust assembly is arranged in the paint spraying module and is connected with the treatment chamber, paint mist is sucked into the treatment chamber and is exhausted through the exhaust assembly after being treated, a supporting assembly is arranged in the paint spraying chamber and comprises a height adjusting assembly and a first interface, a paint spraying table is detachably mounted on the supporting assembly, an air nozzle is arranged on the paint spraying table, a second interface connected with the first interface is arranged on the paint spraying table, the first interface is connected with the treatment chamber, and the second interface is connected with the air nozzle.
Further, the filter assembly comprises at least two groups of filter layers, the first interface is connected with a nozzle in the treatment chamber, and the nozzle is arranged at a position close to the bottom of the filter layers and sprays air towards the upper side.
Further, the first connector is connected with the nozzle through a pipeline, and a booster pump is arranged on the pipeline.
Further, the adsorption component is an activated carbon module, and the adsorption component is arranged in the processing chamber.
Further, the catalytic assembly includes a catalytic plate having honeycomb holes, the surface of the catalytic plate being coated with a catalyst.
Further, still include the transmission line subassembly, the paint spraying platform is placed on the transmission line subassembly, the paint spraying booth both sides have the opening that supplies the transmission line subassembly to pass through.
Further, the supporting component still includes base and runner assembly, the runner assembly is installed on the base, the height adjustment unit mount is in on the runner assembly, be equipped with the mounting disc on the height adjustment unit, the mounting disc with the height adjustment unit rotates to be connected, first interface setting is in on the mounting disc, the mounting disc pass through the follow-up telescopic link with pedestal connection.
Furthermore, the height adjustment subassembly with the platform contact surface that sprays paint is equipped with the location bump, it is sunken to spray paint the bench and be equipped with the location.
Further, the air cock is the push type air cock, when placing the work piece on the paint spraying table, the air cock that receives the pressure closes.
An adsorption catalysis type waste gas treatment method is based on the adsorption catalysis type waste gas treatment system and comprises the following steps:
s1, starting an air exhaust assembly, and placing the workpiece on the paint spraying table for paint spraying;
s2, absorbing partial waste gas through a treatment chamber and absorbing partial waste gas through an air nozzle on the paint spraying table;
s3, the waste gas enters the processing chamber and is primarily filtered by the filter component, partial dust and particulate matters in the waste gas are intercepted, then the waste gas is catalyzed and oxidized by the catalytic component, so that pollutants in the waste gas are easily dissolved in the processing liquid sprayed by the spraying component, and the waste gas after being sprayed is discharged after passing through the adsorption component;
and S4, ejecting the waste gas entering the treatment chamber from the air nozzle from bottom to top through the nozzle, so that the particulate matters and macromolecular substances in the waste gas can rise to a higher position in the treatment chamber and then are discharged after passing through the filtering component, the catalyzing component, the spraying component and the adsorbing component.
The invention has the beneficial effects that:
through setting up the air cock at the paint spraying table, the industrial waste gas who contains a large amount of granules and organic matter that produces when having realized can be quick spraying paint towards the paint spraying table direction absorbs, avoid waste gas need move one section distance after just can the absorbed problem, the problem of the air current that the paint mist leads to with the paint spraying table collision is scattered all around and is reduced air exhaust efficiency has also been avoided, and simultaneously, because the pollutant majority that contains in the paint mist is big than air density, there is sunken trend, so set up the air cock at the paint spraying table and can carry out more comprehensive recovery processing with waste gas in the auxiliary processing room.
In the traditional paint spraying chamber filtration, pollutants need to be intercepted in the filtering component, the filtering component needs to be maintained or replaced frequently, the air permeability loss is avoided, the density of waste gas containing paint mist is higher than that of air, particulate matter, dust, macromolecule and organic matters in the filtering and catalyzing process can sink, the bottom utilization rate of the catalyzing component price of the filtering layer is higher, the carrying function is more, the performance of the local position is reduced or lost too fast, if more pollutants are accumulated at the bottom of the filtering layer, the air permeability of the bottom is reduced compared with other positions, the air suction efficiency is reduced, the cost is increased when the filtering component is replaced, the catalyzing efficiency is reduced due to the accumulation of more pollutants at the bottom of the catalyzing component, and the subsequent treatment effect is influenced, in the application, the nozzle is arranged at a position close to the bottom of the filtering layer and is used for injecting air towards the upper side, make the pollutant receive the air current influence, evenly distributed is on the not co-altitude of process chamber, solves above-mentioned problem, makes filter assembly life increase, reduces and maintains the replacement cost to improve catalysis efficiency, and then reach better exhaust-gas treatment effect.
Moreover, the application optimizes the paint spraying operation aiming at the batch production line, and the more structure cost is not required to be increased while the effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a front view of a paint spray module;
FIG. 2 is a right side view of the paint module;
FIG. 3 is a schematic side view of a process chamber;
FIG. 4 is a schematic structural view of the support assembly;
FIG. 5 is a schematic view of a paint spray booth;
FIG. 6 is a schematic view of the underside of the spray booth;
FIG. 7 is a schematic view of the support assembly and the spray booth;
fig. 8 is a flow chart of adsorption catalytic exhaust gas treatment.
Detailed Description
The present invention is described in detail below with reference to fig. 1 to 8.
The invention discloses an adsorption catalysis type waste gas treatment system which comprises a paint spraying module 1, wherein the paint spraying module 1 is a cabinet body, a treatment liquid interface 15 and an electric cabinet 14 are arranged on the paint spraying module 1, a paint spraying chamber 10, a filtering component, a catalysis component 105, a spraying component 103 and an adsorption component are arranged in the paint spraying module 1, a transmission line component 4 penetrates through the paint spraying chamber 10, a paint spraying table 2 is arranged on the transmission line component 4, openings 11 for the transmission line component 4 to pass through are formed in two sides of the paint spraying chamber 10, a shielding curtain 111 is hung at the opening 11 to play a role of preventing waste gas from overflowing quickly, the transmission line component 4 comprises belt lines on two sides, the belt lines are driven by a motor, conveying rollers are arranged among the belt lines, and the distance between the conveying rollers is larger than the width of a contact part of a supporting component 3 and the paint spraying table 2 and is smaller than the width of the paint spraying table 2.
A concave treatment chamber is arranged in the paint spraying module 1, the filtering component, the catalyzing component 105 and the spraying component 103 are all arranged in the treatment chamber 101, an exhaust component 12 is arranged in the paint spraying module 1, the exhaust component 12 is connected with the treatment chamber 101 and comprises an exhaust fan and an exhaust pipe, paint mist is sucked into the treatment chamber 101 and is discharged through the exhaust component 12 after being treated, the filtering component comprises at least two groups of filtering layers which are respectively a first filtering layer 102 and a second filtering layer 104, the filtering layers are made of paint mist filtering cotton, polyester fiber resistant non-woven fabric filtering layers and other materials with filtering functions, large particles, dust, macromolecular substances and the like in waste gas can be filtered and intercepted in the filtering layers, the catalyzing component 105 comprises a catalyzing plate with honeycomb holes, the surface of the catalyzing plate is coated with a catalyst which can be a Cu-Mn-Ce/TiO2 molecular sieve or a titanium oxide molecular sieve, The waste gas after catalytic oxidation is composed of 35-43% of titanium oxide, 10-25% of silicon oxide, 3-5% of zinc folate, 2-8% of zinc phosphate and 35-50% of sodium peroxide by weight ratio, and pollutants such as organic matters are easier to dissolve in the subsequent spray treatment step.
In order to improve the catalytic oxidation efficiency, an ultraviolet lamp is also arranged in the processing chamber.
The catalytic component can also be polyethylene glycol which can promote organic matters and water to be dissolved in a large amount, so that the absorption effect of the water on harmful gases can be improved on the premise of effectively controlling the cost.
The catalytic assembly 105 may also be a catalytic burner.
The treating fluid interface 15 is connected with the spraying assembly 103, and the waste gas treating fluid can be NaClO solution.
The adsorption component is an activated carbon module, and is arranged in the processing chamber 101; in another embodiment, the suction assembly is disposed outside the device and is connected to the exhaust assembly 12.
Be equipped with supporting component 3 in paint spray booth 10, supporting component 3 includes base 32 and runner assembly 31, and base 32 passes through the bolt and is connected bottom paint spray booth 10, runner assembly 31 installs on base 32, height adjustment subassembly 33 installs on the runner assembly 31, be equipped with mounting disc 34 on the height adjustment subassembly 33, mounting disc 34 with height adjustment subassembly 33 passes through the bearing rotation and connects, first interface 341 sets up on mounting disc 34, mounting disc 34 through follow-up telescopic link 35 with base 32 is connected, first interface 341 through pipeline 342 with spout 106 in the treatment chamber 101 is connected, be equipped with the booster pump on pipeline 342, spout 106 sets up and is being close to the position department of filter layer bottom and towards upside jet-air, be equipped with air cock 21 on the paint spray booth 2, be equipped with on the paint spray booth 2 with the second interface 22 that first interface 341 is connected, second interface 22 with air cock 21 is connected, and air cock 21 is the push type air cock, when placing the work piece on the paint spraying table 2, the air cock 21 that receives pressure closes, and the implementation mode is for realizing through pressure sensor or mechanical means, preferably mechanical means, and the air cock includes the gas pocket and presses the subassembly, presses the subassembly and is pressed the back, blocks the gas pocket, prevents it to breathe in, avoids hugging closely the work piece and breathes in and cause the lacquer painting to damage and the pressure loss of bleeding.
The height adjusting assembly 33 is in contact with the paint spraying table 2, and when the paint spraying table 2 is adjusted in a rotating mode, the mounting disc 34 does not rotate along with the rotation.
Preferably, the surface of the height adjusting component 33 in contact with the paint spraying table 2 is provided with three positioning convex points 331, the positioning convex points 331 are provided with three sets of positioning recesses 23, the positioning convex points 331 are spherical surfaces, the positioning recesses 23 are spherical recesses, the radius of the positioning recesses 23 is greater than that of the positioning convex points 331, and the height of the positioning convex points 331 is higher than that of the first interface 341, so that when the height adjusting component 33 lifts the paint spraying table, the paint spraying table can be automatically adjusted to a correct position under the action of the positioning convex points 331 and the positioning recesses 23, and the connection between the first interface 341 and the second interface 22 is ensured.
The height adjustment subassembly is one of them for cylinder, pneumatic cylinder or electric jar, and runner assembly 31 is carousel and motor, and the motor passes through drive assembly and is connected with the carousel, and the height adjustment subassembly is installed on the carousel, and the height adjustment subassembly is used for realizing the butt joint of first interface 341 and second interface 22 and the height adjustment of paint spraying platform, and runner assembly 31 is used for controlling the paint spraying platform rotatory, the adjustment angle of spraying paint.
The working steps are as follows: the painting table 2 is placed on the transmission line component 4, a workpiece to be painted is placed on the painting table, the transmission line component 4 continuously conveys the painting table into the painting room 10, the painting table stops after being conveyed into the painting room, the height adjusting component enables the positioning convex points 331, the positioning concave portions 23, the first interfaces 341 and the second interfaces 22 to be in butt joint, workers paint the surface of the workpiece, if furniture is painted, the direction of a spray gun needs to be continuously adjusted due to the fact that the furniture has a complex surface, the spray gun sometimes sprays paint in parallel, sometimes sprays paint in an inclined mode, sometimes sprays paint vertically downwards, in actual operation, the painting state towards the painting table 2 is longest in duration and highest in frequency, the traditional painting room only utilizes the air suction effect at the treatment room 101 to collect waste air, but waste air is difficult to collect quickly in time due to the painting direction, waste gas gathering causes the pollution in the paint spraying booth, and in this application, air cock 21 is in the state of breathing in all the time in the paint spraying process, the waste gas that will produce when spraying paint towards the paint spraying table direction that can be quick like this absorbs, avoid waste gas to need move one section distance later on just can the absorbed problem, the problem that the air current that leads to is scattered to reduce pumping efficiency has also been avoided lacquer fog and paint spraying table collision, and simultaneously, because the most air density of pollutant that contains in the lacquer fog is big, there is sunken trend, so set up the air cock that the paint spraying table is last can the auxiliary treatment room with waste gas carry out more comprehensive recovery processing.
In the traditional paint spraying chamber filtration, pollutants need to be intercepted in the filtering component, the filtering component needs to be maintained or replaced frequently, the air permeability loss is avoided, the density of waste gas containing paint mist is higher than that of air, particulate matter, dust, macromolecule and organic matters can sink in the filtering and catalyzing processes, the bottom utilization rate of the catalyzing component price of the filtering layer is higher, the carrying function is more, the performance of the local position is reduced or lost too fast, if more pollutants are accumulated at the bottom of the filtering layer, the air permeability of the bottom is reduced compared with other positions, the air suction efficiency is reduced, the cost is increased when the filtering component is replaced, the catalyzing efficiency is reduced due to the accumulation of more pollutants at the bottom of the catalyzing component, and the subsequent treatment effect is influenced, in the application, the nozzle 106 is arranged at a position close to the bottom of the filtering layer and is used for spraying air towards the upper side, make the pollutant receive the air current influence, evenly distributed is on the not co-altitude of process chamber, solves above-mentioned problem, makes filter assembly life increase, reduces and maintains the replacement cost to improve catalysis efficiency, and then reach better exhaust-gas treatment effect.
An adsorption catalytic type exhaust gas treatment method comprises the following steps:
s1, starting the air exhaust assembly 12, and placing the workpiece on the paint spraying table 2 for paint spraying;
s2, absorbing partial waste gas through the treatment chamber 101, and absorbing partial waste gas through the air nozzles 21 on the paint spraying table 2;
s3, the waste gas enters the processing chamber and is primarily filtered by the filtering component, partial dust and particulate matters in the waste gas are intercepted, then the waste gas is catalyzed and oxidized by the catalyzing component 105, so that pollutants in the waste gas are easily dissolved in the processing liquid sprayed by the spraying component 103, and the waste gas after being sprayed is discharged after passing through the adsorption component;
and S4, the waste gas entering the processing chamber 101 from the air nozzle 21 is sprayed from bottom to top through the nozzle 106, so that the particulate matters and macromolecular substances in the waste gas can rise to a higher position in the processing chamber 101 and then are discharged after passing through the filtering component, the catalytic component 105, the spraying component 103 and the adsorption component.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. An adsorption-catalysis-type exhaust gas treatment system is characterized in that: including module (1) sprays paint, be equipped with spray booth (10), filtering component, catalysis subassembly (105), spray assembly (103) and absorption subassembly in module (1) sprays paint, filtering component, catalysis subassembly (105) and spray assembly (103) all set up in treatment chamber (101), be equipped with air exhaust subassembly (12) in module (1) sprays paint, air exhaust subassembly (12) with treatment chamber (101) are connected, and the coating cloud is inhaled pass through after handling in treatment chamber (101) air exhaust subassembly (12), be equipped with supporting component (3) in spray booth (10), supporting component (3) include height adjustment subassembly (33) and first interface (341), demountable installation has paint spraying platform (2) on supporting component (3), be equipped with air cock (21) on paint spraying platform (2), be equipped with on paint spraying platform (2) with second interface (22) that first interface (341) are connected, the first interface (341) is connected to the processing chamber (101), and the second interface (22) is connected to the gas nozzle (21).
2. An adsorption catalytic exhaust treatment system according to claim 1, wherein: the filter assembly comprises at least two sets of filter layers, the first interface (341) is connected with a nozzle (106) in the processing chamber (101), and the nozzle (106) is arranged at a position close to the bottom of the filter layers and sprays air towards the upper side.
3. An adsorption catalytic exhaust treatment system according to claim 2, wherein: the first interface (341) is connected with the nozzle (106) through a pipeline (342), and a booster pump is arranged on the pipeline (342).
4. An adsorption catalytic exhaust treatment system according to any one of claims 1 to 3, wherein: the adsorption component is an activated carbon module and is arranged in the treatment chamber (101).
5. An adsorption catalytic exhaust treatment system according to any one of claims 1 to 3, wherein: the catalytic assembly (105) includes a catalytic plate having honeycomb holes, the surface of the catalytic plate being coated with a catalyst.
6. An adsorption catalytic exhaust treatment system according to claim 5, wherein: still include transmission line subassembly (4), paint spraying table (2) are arranged in on transmission line subassembly (4), paint spraying booth (10) both sides have the confession opening (11) that transmission line subassembly (4) passed through.
7. An adsorption catalytic exhaust treatment system according to claim 1 or 6, wherein: supporting component (3) still include base (32) and runner assembly (31), runner assembly (31) are installed on base (32), height adjustment subassembly (33) are installed on runner assembly (31), be equipped with mounting disc (34) on height adjustment subassembly (33), mounting disc (34) with height adjustment subassembly (33) rotate to be connected, first interface (341) set up on mounting disc (34), mounting disc (34) through follow-up telescopic link with base (32) are connected.
8. An adsorption catalytic exhaust treatment system according to claim 7, wherein: the height adjustment subassembly (33) with the platform (2) contact surface that sprays paint is equipped with location bump (331), be equipped with location sunken (23) on the platform (2) of spraying paint.
9. An adsorption catalytic exhaust treatment system according to claim 1 or 8, wherein: the air faucet (21) is a push type air faucet, and when a workpiece is placed on the paint spraying table (2), the air faucet (21) under pressure is closed.
10. An adsorption-catalytic exhaust gas treatment method based on the adsorption-catalytic exhaust gas treatment system according to any one of claims 1 to 9, characterized in that: the method comprises the following steps:
s1, starting the air exhaust assembly (12), and placing the workpiece on the paint spraying table (2) for paint spraying;
s2, absorbing partial waste gas through a treatment chamber (101), and absorbing partial waste gas through an air nozzle (21) on the paint spraying table (2);
s3, the waste gas enters the processing chamber and is primarily filtered by the filtering component, partial dust and particulate matters in the waste gas are intercepted, then the waste gas is catalyzed and oxidized by the catalyzing component (105), so that pollutants in the waste gas are easily dissolved in the processing liquid sprayed by the spraying component (103), and the waste gas after being sprayed is discharged after passing through the adsorption component;
and S4, the waste gas entering the processing chamber (101) from the gas nozzle (21) is sprayed from bottom to top through the spray opening (106), so that the particulate matters and macromolecular substances in the waste gas can rise to a higher position in the processing chamber (101), and then the waste gas is discharged after passing through the filtering assembly, the catalytic assembly (105), the spraying assembly (103) and the adsorption assembly.
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| CN202210357614.XA CN114425547B (en) | 2022-04-07 | 2022-04-07 | Adsorption catalysis type waste gas treatment system and method |
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| CN202210357614.XA CN114425547B (en) | 2022-04-07 | 2022-04-07 | Adsorption catalysis type waste gas treatment system and method |
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| CN114425547B (en) | 2022-07-01 |
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