WO2020207236A1 - Integrated equipment for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas - Google Patents

Integrated equipment for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas Download PDF

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WO2020207236A1
WO2020207236A1 PCT/CN2020/080664 CN2020080664W WO2020207236A1 WO 2020207236 A1 WO2020207236 A1 WO 2020207236A1 CN 2020080664 W CN2020080664 W CN 2020080664W WO 2020207236 A1 WO2020207236 A1 WO 2020207236A1
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Prior art keywords
waste gas
adsorption
catalytic coupling
activated carbon
exhaust gas
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PCT/CN2020/080664
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French (fr)
Chinese (zh)
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姚琪
徐遵主
陆朝阳
张纪文
李明
易斌
孙永嘉
王腾骄
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南京大学环境规划设计研究院股份公司
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Publication of WO2020207236A1 publication Critical patent/WO2020207236A1/en

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    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • 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
    • B01D53/02—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
    • 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
    • B01D53/38—Removing components of undefined structure
    • B01D53/40—Acidic components
    • 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
    • B01D53/38—Removing components of undefined structure
    • B01D53/44—Organic components
    • 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
    • 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
    • B01D53/81—Solid phase processes
    • B01D53/82—Solid phase processes with stationary reactants
    • 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
    • B01D53/8671—Removing components of defined structure not provided for in B01D53/8603 - B01D53/8668
    • B01D53/8675—Ozone
    • 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
    • B01D53/8678—Removing components of undefined structure
    • B01D53/8687—Organic components
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • 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
    • 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
    • B01D2259/00—Type of treatment
    • B01D2259/80—Employing electric, magnetic, electromagnetic or wave energy, or particle radiation
    • B01D2259/804—UV light
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the invention relates to the field of industrial waste gas purification, in particular to an integrated device for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas.
  • the common method for treating acidic waste gas is the alkali absorption method
  • the common methods for treating low-concentration and high-volume VOCs are adsorption, photocatalysis and plasma processes.
  • the conventional treatment process requires a separate alkali spray tower to treat the acidic waste gas with an absorption method, and then the VOCs waste gas is treated through adsorption, photocatalysis and plasma processes.
  • This method has high water vapor content after alkali spraying, which affects the subsequent purification of VOCs, and requires additional defogging devices; if the subsequent treatment adopts the adsorption method, a large number of adsorbents and absorption liquids need to be replaced, and there is a large amount of hazardous waste disposal and high operating costs
  • the problems of photocatalysis and plasma technology alone have secondary ozone pollution and poor actual purification efficiency. It is difficult to meet increasingly stringent environmental protection requirements.
  • Cigar patent CN 207430043U discloses a low-temperature photocatalytic coupled adsorption exhaust gas purification device, which includes a sealed housing, and two opposite sides of the housing are provided with air inlets and outlets for air intake and air respectively.
  • Tuyere a number of UV ultraviolet lamp modules for generating ultraviolet rays and activated carbon modules for adsorbing and filtering exhaust gas are installed in the shell.
  • the UV ultraviolet lamp modules and activated carbon modules are alternately arranged at intervals.
  • a titanium dioxide module is installed next to the UV module, or The surface of the activated carbon module is sprayed with titanium dioxide, and a plurality of UV ultraviolet lamp modules are connected with an external power supply and a control switch.
  • the housing is also provided with an activated carbon felt filter plate.
  • the activated carbon felt filter plate is positioned opposite to the air inlet.
  • the beneficial effect is that the UV ultraviolet lamp module, the honeycomb aluminum plate module and the activated carbon module are used in cooperation with each other to exert the catalytic effect of titanium dioxide, so that the organic molecules in the exhaust gas can be fully reacted and cracked and removed, and the purification effect is improved.
  • This patent device combines the advantages of photocatalytic cracking and activated carbon adsorption, but it cannot purify acidic exhaust gas. At the same time, the contact area between the purification module and the exhaust gas is limited, which affects the exhaust gas purification efficiency.
  • Chinese patent CN207462998U discloses an environmentally friendly industrial waste gas thermal catalytic purification device, which aims to solve the problem of low efficiency and high cost of a large number of exhaust gas purification devices. It proposes a higher efficiency and lower cost device plan, and aims at the large number of existing differences in pH Exhaust gas, different flow of exhaust gas cannot be uniformly purified and treated.
  • the purpose of the present invention is to overcome the disadvantages of low purification efficiency, large investment, and secondary pollution in the treatment of acid waste gas and organic waste gas mixed waste gas by using the prior art, and to provide an integrated equipment for the adsorption and catalytic coupling treatment of acid waste gas and organic waste gas .
  • the technical scheme of the present invention can effectively purify the mixed exhaust gas of acid exhaust gas and organic exhaust gas, realize the coordinated purification of adsorption and photocatalysis, and realize the in-situ desorption and regeneration of activated carbon fibers.
  • An integrated equipment for the treatment of acidic waste gas and organic waste gas by adsorption and catalytic coupling comprising an equipment box, an exhaust gas inlet, and a static pressure box.
  • the equipment box is built with adsorption and catalytic coupling purification components, and the static pressure box is arranged in the equipment box.
  • the adsorption catalytic coupling purification assembly is a filter cartridge structure with a skeleton formed by a punching frame and a cover plate,
  • the adsorption catalytic coupling purification assembly includes the inner SDG acid exhaust gas adsorption purification layer, the middle ultraviolet lamp tube, the outer photocatalyst-loaded activated carbon fiber net and the ozone reduction layer; the side of the equipment box is provided with an exhaust gas outlet.
  • the bottom of the static pressure box is a sealing plate, and a plurality of circular filter cartridge grooves are uniformly arranged on the sealing plate, and adsorption catalytic coupling purification components are placed in the circular filter cartridge grooves.
  • the sealing plate is provided with a wire groove
  • the wire groove includes an annular wire groove and a square wire groove arranged outside the circular filter cartridge groove, wherein the square wire groove is located on one side of the annular wire groove and communicates with each other;
  • the wire groove is detachably assembled through the retractable opening blocking teeth up and down.
  • the equipment is equipped with an overhaul door, including an upper electrical overhaul door and a side component overhaul door.
  • the upper electrical overhaul door is located directly above the equipment box and is used for UV lamp replacement or wiring maintenance; the side component overhaul door is located in the seal as a whole. Under the plate, it is used for replacement or maintenance of the adsorption catalytic coupling purification component.
  • the equipment box is also provided with lifting ears and legs, the lifting ears are used for hoisting, and the legs are used for fixing the device.
  • the bottom plate of the adsorption catalytic coupling purification assembly is a solid plate, which forms a stable structure with the punching frame, the cover plate and the internal support.
  • the cover plate includes a SDG cover plate used for fixing the upper part of the SDG acid exhaust gas adsorption purification layer, a UV lamp cover plate used for fixing the upper part of the ultraviolet lamp tube, and an activated carbon fiber net upper part of the photocatalyst-loaded activated carbon used for fixing
  • the fiber cover plate, the reduction layer cover plate and the cover plate buckle used for fixing the upper part of the ozone reduction layer; the cover plate buckle has a clamping groove, and a clamping block is provided on the sealing plate circular filter cartridge groove, the cover plate
  • the card slot of the buckle corresponds to the card block of the circular filter cartridge slot of the sealing plate.
  • the SDG adsorbent filled in the inner SDG acid waste gas adsorption and purification layer is a solid particulate inorganic substance with a larger specific surface area, which can chemically react with the acid waste gas to generate neutral salt and be stored therein;
  • the ultraviolet lamp The tube is a 180nm and 254nm dual-band wavelength ultraviolet lamp, and the lamp tube is made of high-purity quartz glass.
  • the photocatalyst-supported activated carbon fiber mesh substrate is polyacrylonitrile-based activated carbon or viscose-based activated carbon, the activated carbon fiber is pretreated and modified with sulfuric acid and potassium permanganate, and the photocatalyst is loaded on On activated carbon fibers;
  • the ozone reduction layer is a catalyst composed of manganese, copper, nickel and cobalt oxides, which can effectively degrade the excess ozone generated by the ultraviolet lamp.
  • the perforated frame is made of perforated aluminum plate or steel plate, which is the skeleton of the catalytic coupling purification assembly, and the purified exhaust gas is discharged from the mesh of the perforated frame.
  • the integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas of the present invention adopts dry SDG acid waste gas adsorbent to treat the acid waste gas, which significantly reduces the investment, operation and maintenance costs and secondary pollution of waste liquid; after SDG acid
  • the VOCs exhaust gas after the exhaust gas adsorbent treatment enters the photolysis and photocatalytic treatment layer.
  • the short-wavelength ultraviolet light emitted by the 180nm ultraviolet lamp can photodecompose the molecular chain of VOCs, and the ozone generated at the same time can effectively decompose VOCs; after photolysis
  • the VOCs after the stage treatment further enter the photocatalyst-loaded activated carbon fiber network.
  • the activated carbon fiber has a huge specific surface area, which can effectively adsorb the remaining VOCs and the reaction products of photolysis and ozone.
  • the photocatalyst loaded on it can enrich the VOCs under the action of ultraviolet light. Carry out high-efficiency degradation; the incompletely reacted ozone is completely decomposed in the ozone reducing layer.
  • the method effectively combines ultraviolet photolysis, adsorption, photocatalysis and ozone synergistically, and can efficiently purify VOCs.
  • the SDG acid exhaust gas adsorbent can effectively treat acid exhaust gas.
  • the integrated device for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas of the present invention effectively desorbs VOCs adsorbed by activated carbon fibers under the action of ultraviolet light and ozone, thereby ensuring the adsorption capacity of activated carbon fibers for VOCs.
  • the purification component is a filter cartridge structure, which can significantly improve the utilization efficiency of ultraviolet light and the effective contact area of the purification material and the exhaust gas, thereby achieving high air volume and low air volume. Concentrated acidic waste gas and organic waste gas are mixed with high efficiency purification.
  • the device has a compact structure, and the purification components are easy to install and replace, which can realize the standardization and modularization of waste gas treatment.
  • Fig. 1 is a schematic diagram of the structure of an integrated device for coupling treatment of acidic waste gas and organic waste gas by adsorption catalysis of the present invention.
  • Fig. 2 is a schematic front view of the purification assembly of the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
  • FIG 3 is a schematic top view of the purification assembly of the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
  • Fig. 4 is a schematic top view of a cross-sectional view of an integrated device purification assembly for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
  • the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic waste gas includes an equipment cabinet 10, an exhaust gas inlet 20, a static pressure box 30, a sealing plate 40, a line groove 50, an adsorption catalytic coupling purification assembly 60, The exhaust gas outlet 70, the inspection door 80, the sight glass 90, the lifting lug 100 and the support leg 110.
  • the adsorption catalytic coupling purification assembly 60 is a filter cartridge structure, including an inner ultraviolet lamp tube 61, a photocatalyst-loaded activated carbon fiber mesh 62, an SDG acid exhaust gas adsorption purification layer 63, and ozone reduction Layer 64, punching frame 65, cover plate 66, and bottom plate 67; the cover plate also includes SDG cover plate 661, ultraviolet lamp cover plate 662, activated carbon fiber cover plate 663, reduction layer cover plate 664 and cover plate buckle 665.
  • the upper part of the box body 10 is connected to the exhaust gas inlet 20, and the exhaust gas inlet 20 is connected with the static pressure box 30.
  • the exhaust gas first enters the static pressure box and then uniformly enters the purification components, while reducing system resistance and noise.
  • the overall material of the equipment is 304 stainless steel.
  • the lower bottom of the static pressure box 30 is a sealing plate 40.
  • the sealing plate 40 is evenly arranged with a plurality of circular filter cartridge grooves. Except for the filter cartridge grooves, the sealing plate 40 and the box body 10 are tightly sealed, and exhaust gas can only pass through the circle.
  • the shaped filter cartridge slot enters the exhaust gas purification assembly to ensure the purification efficiency of the exhaust gas.
  • the sealing plate 40 is provided with a wire groove 50.
  • the wire groove 50 is divided into an annular wire groove 501 and a square wire groove 502 arranged outside the circular filter cartridge groove.
  • the square wire groove 502 is located on the side of the circular wire groove 501. And they are connected to each other; among them, the ultraviolet lamps are arranged in the ring groove 501 in a ring shape, and the tube wiring is collected through the square groove 502 to cause the outside of the device; the upper and lower grooves are detachably assembled through the retractable opening blocking teeth, which is convenient for disassembly and maintenance.
  • the wire groove is made of ABS flame-retardant insulating plastic.
  • the circular filter cartridge groove is used to place the adsorption catalytic coupling purification assembly 60.
  • the upper end of the purification assembly 60 is a cover plate.
  • the size of the cover plate is larger than the circular filter cartridge groove on the sealing plate 40, thereby fixing the purification assembly.
  • the exhaust gas is uniformly distributed through the static pressure box 30 and then enters the catalytic coupling purification assembly 60 of the filter cartridge structure.
  • the purified exhaust gas is collected and discharged through the exhaust gas outlet 70 through the side meshes of the catalytic coupling purification assembly of the filter cartridge structure.
  • the processing air volume of a single adsorption catalytic coupling purification module is 500 m 3 /h, and the system processing air volume can be increased by increasing the number of purification modules to achieve modularity and standardization of exhaust gas treatment.
  • the access door 80 includes an upper electrical access door and a side component access door.
  • the upper electrical access door is located directly above the equipment cabinet 10 and is used for the replacement of the ultraviolet lamp 62 or wiring maintenance; the side component access door is located in the seal as a whole. Below the plate 40, it is used to replace or repair the adsorption catalytic coupling purification assembly 60.
  • the sight glasses 90 are distributed around the box body 10 and are used to observe whether components such as the ultraviolet lamp tube 62 are working normally; the lifting lugs 100 are used for hoisting; the legs 110 are used for fixing the equipment.
  • the adsorption catalytic coupling purification assembly 60 is a filter cartridge structure, including an inner SDG acid exhaust gas adsorption purification layer 61, a middle ultraviolet lamp tube 62, a photocatalyst-loaded activated carbon fiber mesh 63, an ozone reduction layer 64, and a punching frame 65 , Cover plate 66 and bottom plate 67;
  • the bottom plate 67 is a solid plate, forming a stable structure with the punching frame 65, the cover plate 66 and the internal support.
  • a layer of activated carbon fiber net supporting a photocatalyst can be added to the outside of the SDG acid exhaust gas adsorption purification layer to improve the utilization efficiency of ultraviolet light and further improve the purification efficiency of VOCs.
  • the SDG adsorbent filled in the inner SDG acid waste gas adsorption and purification layer 61 is a solid particulate inorganic substance with a larger specific surface area, which can chemically react with the acid waste gas to generate neutral salts and be stored therein.
  • the ultraviolet lamp tube 62 is a 180nm and 254nm dual-band wavelength ultraviolet lamp, and the lamp tube material is high-purity quartz glass.
  • the photocatalyst-loaded activated carbon fiber mesh 63 is made of polyacrylonitrile-based activated carbon or viscose-based activated carbon.
  • the activated carbon fiber is pretreated and modified with sulfuric acid and potassium permanganate, and the photocatalyst is supported on On activated carbon fiber.
  • the preferred activated carbon fiber net base material is polypropylene acrylic activated carbon, and the photocatalyst is commercially available P25 titanium dioxide, while ensuring that the intensity of ultraviolet light on the activated carbon fiber net is 2 mW/cm 2 .
  • the ozone reduction layer 64 is a catalyst composed of manganese, copper, nickel, and cobalt oxides, which can effectively degrade the excess ozone generated by the ultraviolet lamp 62.
  • the punching frame 65 is made of punched aluminum plate, steel plate, etc., which is the skeleton of the catalytic coupling purification assembly 60, and can discharge the purified exhaust gas out of the device.
  • the cover 66 includes an SDG cover 661, an ultraviolet lamp cover 662, an activated carbon fiber cover 663, a reduction layer cover 664, and a cover buckle 665.
  • the slot of the cover buckle 665 is placed on the sealing plate.
  • the prefabricated block of the 40 circular filter cartridge can be rotated clockwise to fix the adsorption catalytic coupling purification assembly 60 in the integrated device. When disassembling, it can be rotated counterclockwise, which can realize rapid installation and disassembly, which is convenient for adsorption catalytic coupling purification. Replacement and maintenance of component 60.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Dispersion Chemistry (AREA)
  • Toxicology (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Catalysts (AREA)
  • Exhaust Gas Treatment By Means Of Catalyst (AREA)
  • Treating Waste Gases (AREA)

Abstract

Integrated equipment for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas, comprising an equipment box body (10), a waste gas inlet (20), a static pressure box (30), a closure plate (40), wiring ducts (50), adsorption and catalytic coupling purification assemblies (60), a waste gas outlet (70), access doors (80), sight glass (90), lifting lugs (100), and support legs (110). Each adsorption and catalytic coupling purification assembly (60) is of a filtering cartridge structure and comprises an interior SDG acid waste gas adsorbent layer (61), middle ultraviolet light tubes (62), an exterior activated carbon fiber mesh (63) loaded with a photocatalyst, an ozone reduction layer (64), a cover plate (66), and internal support members.

Description

吸附催化耦合处理酸性废气及有机废气的一体化设备Integrated equipment for coupling treatment of acidic waste gas and organic waste gas by adsorption catalysis 技术领域Technical field
本发明涉及工业废气净化领域，具体涉及一种吸附催化耦合处理酸性废气及有机废气的一体化设备。The invention relates to the field of industrial waste gas purification, in particular to an integrated device for adsorption and catalytic coupling treatment of acid waste gas and organic waste gas.
背景技术Background technique
目前我国环境空气污染问题严重，能源快速消耗进一步加重了环境负担。臭氧污染问题日益严重；进入秋冬季节，重雾霾天气仍时有发生。人们对环境空气质量的要求十分迫切，而工业VOCs是导致臭氧和雾霾污染的重要原因，大部分企业VOCs排放具有大风量低浓度特征；同时工业废气成分复杂，除了有机废气外，还会有各类酸性废气。常规处理工艺难以同时处理酸性废气和有机废气，分段处置存在投资占地大，能耗高的问题，企业难以承受，此类废气的有效治理成为制约环境质量提升的重要因素。At present, the problem of environmental air pollution in our country is serious, and the rapid consumption of energy has further increased the environmental burden. The problem of ozone pollution is becoming more and more serious; heavy smog still occurs in the autumn and winter seasons. People’s requirements for ambient air quality are very urgent, and industrial VOCs are an important cause of ozone and haze pollution. VOCs emissions from most companies have the characteristics of large air volume and low concentration; at the same time, the composition of industrial waste gas is complex. In addition to organic waste gas, there will be Various types of acid waste gas. It is difficult for conventional treatment processes to treat acidic waste gas and organic waste gas at the same time. Segmented treatment has the problems of large investment and high energy consumption, which is difficult for enterprises to bear. The effective treatment of such waste gas has become an important factor restricting the improvement of environmental quality.
目前常见处理酸性废气的方法为碱吸收法，处理低浓度大风量VOCs常见的办法为吸附、光催化和等离子体工艺。常规的处理工艺需要单独设置碱喷淋塔采用吸收方法处理酸性废气，然后再行通过吸附、光催化和等离子体工艺处理VOCs废气。此种方法存在碱喷淋后水气含量过高，影响后续VOCs净化，需要额外增设除雾装置；后续处理若采用吸附法需要大量更换吸附剂和吸收液，存在危废处置量大和运行费用高的问题；单独光催化和等离子体工艺存在二次臭氧污染和实际净化效率不佳等问题很难满足日益严格的环保要求。At present, the common method for treating acidic waste gas is the alkali absorption method, and the common methods for treating low-concentration and high-volume VOCs are adsorption, photocatalysis and plasma processes. The conventional treatment process requires a separate alkali spray tower to treat the acidic waste gas with an absorption method, and then the VOCs waste gas is treated through adsorption, photocatalysis and plasma processes. This method has high water vapor content after alkali spraying, which affects the subsequent purification of VOCs, and requires additional defogging devices; if the subsequent treatment adopts the adsorption method, a large number of adsorbents and absorption liquids need to be replaced, and there is a large amount of hazardous waste disposal and high operating costs The problems of photocatalysis and plasma technology alone have secondary ozone pollution and poor actual purification efficiency. It is difficult to meet increasingly stringent environmental protection requirements.
中国专利CN 207430043U公开了一种低温光催化耦合吸附废气净化装置，包括了包括密封的壳体，所述壳体上位置相对的两个侧面上分别设有用于进气和出气的进风口和出风口，壳体内安装有多个用于产生紫外线的UV紫外线灯模块和用于对废气进行吸附过滤的活性炭模块，UV紫外线灯模块和活性炭模块间隔交替排列，UV模块旁安装有二氧化钛模块，或在活性炭模块的表面喷涂二氧化钛，多个UV紫外线灯模块与外部电源和控制开关连接，所述壳体内还设有活性炭棉毡过滤板，活性炭棉毡过滤板与进风口的位置相对，本实用新型的有益效果是：UV紫外线灯模块与蜂窝铝板模块和活性炭模块相互配合使用，能发挥二氧化钛的催化作用，使得废气中的有机物分子充分反应裂解去除，提升净化效果。该专 利装置集合了光催化裂解和活性炭吸附的优势，但是无法净化酸性废气，同时净化模块与废气接触面积有限从而影响了废气净化效率。Chinese patent CN 207430043U discloses a low-temperature photocatalytic coupled adsorption exhaust gas purification device, which includes a sealed housing, and two opposite sides of the housing are provided with air inlets and outlets for air intake and air respectively. Tuyere, a number of UV ultraviolet lamp modules for generating ultraviolet rays and activated carbon modules for adsorbing and filtering exhaust gas are installed in the shell. The UV ultraviolet lamp modules and activated carbon modules are alternately arranged at intervals. A titanium dioxide module is installed next to the UV module, or The surface of the activated carbon module is sprayed with titanium dioxide, and a plurality of UV ultraviolet lamp modules are connected with an external power supply and a control switch. The housing is also provided with an activated carbon felt filter plate. The activated carbon felt filter plate is positioned opposite to the air inlet. The beneficial effect is that the UV ultraviolet lamp module, the honeycomb aluminum plate module and the activated carbon module are used in cooperation with each other to exert the catalytic effect of titanium dioxide, so that the organic molecules in the exhaust gas can be fully reacted and cracked and removed, and the purification effect is improved. This patent device combines the advantages of photocatalytic cracking and activated carbon adsorption, but it cannot purify acidic exhaust gas. At the same time, the contact area between the purification module and the exhaust gas is limited, which affects the exhaust gas purification efficiency.
中国专利CN207462998U公开了一种环保工业废气热催化净化装置，针对大量废气净化装置效率偏低，成本偏高的问题提出较高效率、较低成本的装置方案，并且针对现有的对大量不同酸碱度废气，不同流量废气无法统一均匀净化处理的情况，提出了通过增加气体预分布器、采用喷头喷洒酸碱雾雨和增加加热催化的方式，它包括进气口、一级滤网、输气管、气体预分布器、加湿处理室、喷头、蓄水室、酸碱测试计、酸碱室、过水漏斗、废水池、格挡板、干燥U型管、加热网、催化室、二级滤网、出气口、气体回收装置，通过分布器均匀气流，加湿室喷雾雨中和酸碱，加热网升温促进催化，使得处理范围更大，处理更均匀的方案。实现废气净化的高效率性，大范围性和稳定性。该发明装置充分考虑了酸性废气的处理，但是装置结构复杂，会产生大量废液，后期运行维护成本较高。Chinese patent CN207462998U discloses an environmentally friendly industrial waste gas thermal catalytic purification device, which aims to solve the problem of low efficiency and high cost of a large number of exhaust gas purification devices. It proposes a higher efficiency and lower cost device plan, and aims at the large number of existing differences in pH Exhaust gas, different flow of exhaust gas cannot be uniformly purified and treated. It is proposed to increase the gas pre-distributor, use the nozzle to spray acid-base mist rain and increase the heating catalysis method, which includes the air inlet, the primary filter, the gas pipe, Gas pre-distributor, humidification chamber, nozzle, water storage chamber, acid-base tester, acid-base chamber, water funnel, waste water tank, grid baffle, drying U-tube, heating net, catalytic chamber, secondary filter , Air outlet, gas recovery device, uniform air flow through the distributor, the humidification chamber sprays rain to neutralize the acid and alkali, and the heating net heats up to promote catalysis, making the treatment range larger and more uniform. Realize the high efficiency, wide range and stability of exhaust gas purification. The device of the present invention fully considers the treatment of acid waste gas, but the device structure is complicated, a large amount of waste liquid is generated, and the later operation and maintenance cost is relatively high.
发明内容Summary of the invention
本发明的目的在于克服采用现有技术处理酸性废气及有机废气混合废气净化效率不高、投资大、存在二次污染的不足，提供了一种吸附催化耦合处理酸性废气及有机废气的一体化设备。采用本发明的技术方案能够有效净化酸性废气及有机废气的混合废气，实现吸附和光催化的协同净化，实现对活性炭纤维的原位脱附再生。The purpose of the present invention is to overcome the disadvantages of low purification efficiency, large investment, and secondary pollution in the treatment of acid waste gas and organic waste gas mixed waste gas by using the prior art, and to provide an integrated equipment for the adsorption and catalytic coupling treatment of acid waste gas and organic waste gas . The technical scheme of the present invention can effectively purify the mixed exhaust gas of acid exhaust gas and organic exhaust gas, realize the coordinated purification of adsorption and photocatalysis, and realize the in-situ desorption and regeneration of activated carbon fibers.
为实现上述目的，本发明提供的技术方案是：In order to achieve the above objective, the technical solution provided by the present invention is:
一种吸附催化耦合处理酸性废气及有机废气的一体化设备，包括设备箱体、废气进口、静压箱，所述设备箱体内置有吸附催化耦合净化组件，所述静压箱设于设备箱体上方，所述的设备箱体上部与废气进口相连，且废气进口与所述静压箱贯通；所述吸附催化耦合净化组件为滤筒式结构，具有冲孔框架形成的骨架以及盖板，吸附催化耦合净化组件包括内侧SDG酸废气吸附净化层、中部紫外灯管、外侧的负载光催化剂的活性炭纤维网和臭氧还原层；设备箱体侧面设有废气出口。An integrated equipment for the treatment of acidic waste gas and organic waste gas by adsorption and catalytic coupling, comprising an equipment box, an exhaust gas inlet, and a static pressure box. The equipment box is built with adsorption and catalytic coupling purification components, and the static pressure box is arranged in the equipment box. Above the body, the upper part of the equipment box body is connected with the exhaust gas inlet, and the exhaust gas inlet is connected with the static pressure box; the adsorption catalytic coupling purification assembly is a filter cartridge structure with a skeleton formed by a punching frame and a cover plate, The adsorption catalytic coupling purification assembly includes the inner SDG acid exhaust gas adsorption purification layer, the middle ultraviolet lamp tube, the outer photocatalyst-loaded activated carbon fiber net and the ozone reduction layer; the side of the equipment box is provided with an exhaust gas outlet.
进一步的，所述的静压箱底部为封板，在封板上均匀布置有多个圆形滤筒槽，所述的圆形滤筒槽内放置吸附催化耦合净化组件。Further, the bottom of the static pressure box is a sealing plate, and a plurality of circular filter cartridge grooves are uniformly arranged on the sealing plate, and adsorption catalytic coupling purification components are placed in the circular filter cartridge grooves.
进一步的，所述的封板上设有线槽，所述线槽包括布置在圆形滤筒槽外侧的环形线槽和方形线槽，其中方形线槽位于环形线槽一侧，并且相互连通；所述线 槽上下通过可伸缩的开口阻隔齿进行可拆卸式装配。Further, the sealing plate is provided with a wire groove, and the wire groove includes an annular wire groove and a square wire groove arranged outside the circular filter cartridge groove, wherein the square wire groove is located on one side of the annular wire groove and communicates with each other; The wire groove is detachably assembled through the retractable opening blocking teeth up and down.
进一步的，设备设有检修门，包括上端电气检修门和侧面组件检修门，其中上端电气检修门位于设备箱体的正上方，用于紫外灯管更换或者接线维修；侧面组件检修门整***于封板下方，用于吸附催化耦合净化组件的更换或者维修。Furthermore, the equipment is equipped with an overhaul door, including an upper electrical overhaul door and a side component overhaul door. The upper electrical overhaul door is located directly above the equipment box and is used for UV lamp replacement or wiring maintenance; the side component overhaul door is located in the seal as a whole. Under the plate, it is used for replacement or maintenance of the adsorption catalytic coupling purification component.
进一步的，设备箱体四周设有视镜，用于观察紫外灯管等部件是否正常工作；设备箱体还设有吊耳和支腿，吊耳用于吊装，支腿用于设备固定。Further, there are sight glasses around the equipment box to observe whether parts such as ultraviolet lamps are working normally; the equipment box is also provided with lifting ears and legs, the lifting ears are used for hoisting, and the legs are used for fixing the device.
进一步的，所述吸附催化耦合净化组件的底板为实心板，与冲孔框架和盖板以及内部支撑件形成稳定结构。Further, the bottom plate of the adsorption catalytic coupling purification assembly is a solid plate, which forms a stable structure with the punching frame, the cover plate and the internal support.
进一步的，所述盖板上包括SDG酸废气吸附净化层上部用于固定的SDG盖板、紫外灯管上部用于固定的紫外灯盖板、负载光催化剂的活性炭纤维网上部用于固定的活性炭纤维盖板、臭氧还原层上部用于固定的还原层盖板、盖板卡扣；所述盖板卡扣具有卡槽，在封板圆形滤筒槽上设有卡块，所述盖板卡扣的卡槽与封板圆形滤筒槽的卡块相应。Further, the cover plate includes a SDG cover plate used for fixing the upper part of the SDG acid exhaust gas adsorption purification layer, a UV lamp cover plate used for fixing the upper part of the ultraviolet lamp tube, and an activated carbon fiber net upper part of the photocatalyst-loaded activated carbon used for fixing The fiber cover plate, the reduction layer cover plate and the cover plate buckle used for fixing the upper part of the ozone reduction layer; the cover plate buckle has a clamping groove, and a clamping block is provided on the sealing plate circular filter cartridge groove, the cover plate The card slot of the buckle corresponds to the card block of the circular filter cartridge slot of the sealing plate.
进一步的，所述的内侧SDG酸废气吸附净化层填充的SDG吸附剂为比表面积较大的固体颗粒状无机物，可与酸性废气发生化学反应生成中性盐而存储于其中；所述紫外灯管为180nm和254nm双波段波长紫外灯，灯管材质为高纯石英玻璃。Further, the SDG adsorbent filled in the inner SDG acid waste gas adsorption and purification layer is a solid particulate inorganic substance with a larger specific surface area, which can chemically react with the acid waste gas to generate neutral salt and be stored therein; the ultraviolet lamp The tube is a 180nm and 254nm dual-band wavelength ultraviolet lamp, and the lamp tube is made of high-purity quartz glass.
进一步的，所述负载光催化剂的活性炭纤维网基材为聚丙烯晴基活性炭或者粘胶基活性炭，将活性炭纤维采用硫酸和高锰酸钾进行预处理改性，通过浸渍法将光催化剂负载在活性炭纤维上；所述臭氧还原层是由锰、铜、镍和钴氧化物组成的催化剂，可将紫外灯管产生的多余臭氧进行有效降解。Further, the photocatalyst-supported activated carbon fiber mesh substrate is polyacrylonitrile-based activated carbon or viscose-based activated carbon, the activated carbon fiber is pretreated and modified with sulfuric acid and potassium permanganate, and the photocatalyst is loaded on On activated carbon fibers; the ozone reduction layer is a catalyst composed of manganese, copper, nickel and cobalt oxides, which can effectively degrade the excess ozone generated by the ultraviolet lamp.
进一步的，所述冲孔框架材质为冲孔铝板或钢板，是催化耦合净化组件的骨架，净化后的废气从冲孔框架的网孔排出。Further, the perforated frame is made of perforated aluminum plate or steel plate, which is the skeleton of the catalytic coupling purification assembly, and the purified exhaust gas is discharged from the mesh of the perforated frame.
与现有技术相比，本发明的有益效果是：Compared with the prior art, the beneficial effects of the present invention are:
(1)本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备，采用干式SDG酸废气吸附剂处理酸性废气，显著的降低了投资运维费用和废液二次污染；经过SDG酸废气吸附剂处理后的VOCs废气进入光解和光催化处理层，180nm紫外灯发出的短波长紫外光可以对VOCs分子链进行光解打断，同时产生的臭氧可以对VOCs进行有效分解；经过光解段处理后的VOCs进一步进入负载光催化剂的活性炭纤维网，活性炭纤维比表面积巨大，可以有效吸附剩余VOCs及光解和 臭氧的反应产物，上面负载的光催化剂在紫外光作用下对富集的VOCs进行高效降解；未充分反应完全的臭氧在臭氧还原层彻底分解。本方法有效的将紫外光解、吸附、光催化和臭氧协同组合，可以高效净化VOCs，同时SDG酸废气吸附剂可以有效处理酸性废气。(1) The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas of the present invention adopts dry SDG acid waste gas adsorbent to treat the acid waste gas, which significantly reduces the investment, operation and maintenance costs and secondary pollution of waste liquid; after SDG acid The VOCs exhaust gas after the exhaust gas adsorbent treatment enters the photolysis and photocatalytic treatment layer. The short-wavelength ultraviolet light emitted by the 180nm ultraviolet lamp can photodecompose the molecular chain of VOCs, and the ozone generated at the same time can effectively decompose VOCs; after photolysis The VOCs after the stage treatment further enter the photocatalyst-loaded activated carbon fiber network. The activated carbon fiber has a huge specific surface area, which can effectively adsorb the remaining VOCs and the reaction products of photolysis and ozone. The photocatalyst loaded on it can enrich the VOCs under the action of ultraviolet light. Carry out high-efficiency degradation; the incompletely reacted ozone is completely decomposed in the ozone reducing layer. The method effectively combines ultraviolet photolysis, adsorption, photocatalysis and ozone synergistically, and can efficiently purify VOCs. At the same time, the SDG acid exhaust gas adsorbent can effectively treat acid exhaust gas.
(2)本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备，在紫外光和臭氧的的作用下对活性炭纤维吸附的VOCs进行有效脱附，从而保证活性炭纤维对VOCs的吸附容量，为VOCs的净化提供充足位点和反应时间，保证整套装置持久高效的净化能力，从而减少了活性炭吸附剂的使用量。(2) The integrated device for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas of the present invention effectively desorbs VOCs adsorbed by activated carbon fibers under the action of ultraviolet light and ozone, thereby ensuring the adsorption capacity of activated carbon fibers for VOCs. Provide sufficient sites and reaction time for the purification of VOCs to ensure the long-lasting and efficient purification capacity of the entire device, thereby reducing the amount of activated carbon adsorbent used.
(3)本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备，净化组件为滤筒式结构可以显著提高紫外光的利用效率和净化材料与废气的有效接触面积，从而实现大风量低浓度的酸性废气和有机废气混合废气的高效净化，该装置结构紧凑，净化组件安装更换方便，可以实现废气处理的标准化和模块化。(3) In the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention, the purification component is a filter cartridge structure, which can significantly improve the utilization efficiency of ultraviolet light and the effective contact area of the purification material and the exhaust gas, thereby achieving high air volume and low air volume. Concentrated acidic waste gas and organic waste gas are mixed with high efficiency purification. The device has a compact structure, and the purification components are easy to install and replace, which can realize the standardization and modularization of waste gas treatment.
附图说明Description of the drawings
图1为本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备结构示意图。Fig. 1 is a schematic diagram of the structure of an integrated device for coupling treatment of acidic waste gas and organic waste gas by adsorption catalysis of the present invention.
图2为本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备净化组件主视示意图。Fig. 2 is a schematic front view of the purification assembly of the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
图3为本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备净化组件俯视示意图。3 is a schematic top view of the purification assembly of the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
图4为本发明的吸附催化耦合处理酸性废气及有机废气的一体化设备净化组件俯视剖面示意图。Fig. 4 is a schematic top view of a cross-sectional view of an integrated device purification assembly for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic exhaust gas of the present invention.
图中：10-设备箱体，20-废气进口，30-静压箱，40-封板，50-线槽，60-吸附催化耦合净化组件，70-废气出口，80-检修门，90-视镜，100-吊耳，110-支腿，61-SDG酸废气吸附净化层，62-紫外灯管，63-负载光催化剂的活性炭纤维网，64-臭氧还原层，65-冲孔框架，66-盖板，67-底板，661-SDG盖板，662-紫外灯盖板，663-活性炭纤维盖板，664-还原层盖板，665-盖板卡扣。In the picture: 10-equipment box, 20-exhaust gas inlet, 30-static pressure box, 40-sealing plate, 50-slot, 60-adsorption catalytic coupling purification assembly, 70-exhaust gas outlet, 80-inspection door, 90- Sight glass, 100-hanging ear, 110-leg, 61-SDG acid exhaust gas adsorption purification layer, 62-ultraviolet lamp tube, 63-photocatalyst-loaded activated carbon fiber mesh, 64-ozone reduction layer, 65-perforated frame, 66-cover plate, 67-base plate, 661-SDG cover plate, 662-ultraviolet lamp cover plate, 663-activated carbon fiber cover plate, 664-reduction layer cover plate, 665-cover plate buckle.
具体实施方式detailed description
下面结合具体实施例对本发明作进一步说明。The present invention will be further described below in conjunction with specific embodiments.
如图1所示，吸附催化耦合处理酸性废气及有机废气的一体化设备，包括设备箱体10、废气进口20、静压箱30、封板40、线槽50、吸附催化耦合净化组 件60、废气出口70、检修门80、视镜90、吊耳100和支腿110。As shown in Figure 1, the integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic waste gas includes an equipment cabinet 10, an exhaust gas inlet 20, a static pressure box 30, a sealing plate 40, a line groove 50, an adsorption catalytic coupling purification assembly 60, The exhaust gas outlet 70, the inspection door 80, the sight glass 90, the lifting lug 100 and the support leg 110.
如图2、图3和图4所示，吸附催化耦合净化组件60为滤筒式结构，包括内侧紫外灯管61、负载光催化剂的活性炭纤维网62、SDG酸废气吸附净化层63、臭氧还原层64、冲孔框架65、盖板66、和底板67；其中盖板还包括SDG盖板661、紫外灯盖板662、活性炭纤维盖板663、还原层盖板664和盖板卡扣665。As shown in Figure 2, Figure 3 and Figure 4, the adsorption catalytic coupling purification assembly 60 is a filter cartridge structure, including an inner ultraviolet lamp tube 61, a photocatalyst-loaded activated carbon fiber mesh 62, an SDG acid exhaust gas adsorption purification layer 63, and ozone reduction Layer 64, punching frame 65, cover plate 66, and bottom plate 67; the cover plate also includes SDG cover plate 661, ultraviolet lamp cover plate 662, activated carbon fiber cover plate 663, reduction layer cover plate 664 and cover plate buckle 665.
本实施例中箱体10上部与废气进口20相连，且废气进口20与静压箱30贯通，废气首先进入静压箱，然后在均匀的进入各个净化组件，同时可以降低***阻力和噪音。In this embodiment, the upper part of the box body 10 is connected to the exhaust gas inlet 20, and the exhaust gas inlet 20 is connected with the static pressure box 30. The exhaust gas first enters the static pressure box and then uniformly enters the purification components, while reducing system resistance and noise.
优选的，设备整体材质为304不锈钢。Preferably, the overall material of the equipment is 304 stainless steel.
本实施例中静压箱30的下底部为封板40，封板40均匀布置有多个圆形滤筒槽，除滤筒槽外封板40与箱体10密封严密，废气只能通过圆形滤筒槽进入废气净化组件，从而保证废气的净化效率。In this embodiment, the lower bottom of the static pressure box 30 is a sealing plate 40. The sealing plate 40 is evenly arranged with a plurality of circular filter cartridge grooves. Except for the filter cartridge grooves, the sealing plate 40 and the box body 10 are tightly sealed, and exhaust gas can only pass through the circle. The shaped filter cartridge slot enters the exhaust gas purification assembly to ensure the purification efficiency of the exhaust gas.
本实施例中封板40上设有线槽50，线槽50分为布置在圆形滤筒槽外侧的环形线槽501和方形线槽502，其中方形线槽502位于环形线槽501一侧，并且相互连通；其中紫外灯环形布置于环形线槽501中，灯管接线汇总经方形线槽502引致设备外部；线槽上下通过可伸缩的开口阻隔齿进行可拆卸式装配，便于拆卸维修。In this embodiment, the sealing plate 40 is provided with a wire groove 50. The wire groove 50 is divided into an annular wire groove 501 and a square wire groove 502 arranged outside the circular filter cartridge groove. The square wire groove 502 is located on the side of the circular wire groove 501. And they are connected to each other; among them, the ultraviolet lamps are arranged in the ring groove 501 in a ring shape, and the tube wiring is collected through the square groove 502 to cause the outside of the device; the upper and lower grooves are detachably assembled through the retractable opening blocking teeth, which is convenient for disassembly and maintenance.
优选的，线槽材质为ABS阻燃绝缘塑料。Preferably, the wire groove is made of ABS flame-retardant insulating plastic.
本实施例中圆形滤筒槽用于放置吸附催化耦合净化组件60，净化组件60的上端部为盖板，盖板尺寸大于封板40上的圆形滤筒槽，从而起到固定净化组件60的作用，废气经过静压箱30均匀分布后进入滤筒式结构的催化耦合净化组件60，净化后的废气经滤筒式结构的催化耦合净化组件的侧面网孔汇总经废气出口70排出。In this embodiment, the circular filter cartridge groove is used to place the adsorption catalytic coupling purification assembly 60. The upper end of the purification assembly 60 is a cover plate. The size of the cover plate is larger than the circular filter cartridge groove on the sealing plate 40, thereby fixing the purification assembly. The exhaust gas is uniformly distributed through the static pressure box 30 and then enters the catalytic coupling purification assembly 60 of the filter cartridge structure. The purified exhaust gas is collected and discharged through the exhaust gas outlet 70 through the side meshes of the catalytic coupling purification assembly of the filter cartridge structure.
优选的，单个吸附催化耦合净化组件处理风量为500m 3/h，可以通过增加净化组件的数量增大***处理风量，实现废气处理的模块化和标准化。 Preferably, the processing air volume of a single adsorption catalytic coupling purification module is 500 m 3 /h, and the system processing air volume can be increased by increasing the number of purification modules to achieve modularity and standardization of exhaust gas treatment.
本实施例中检修门80包括上端电气检修门和侧面组件检修门，其中上端电气检修门位于设备箱体10的正上方，用于紫外灯管62更换或者接线维修；侧面组件检修门整***于封板40下方，用于吸附催化耦合净化组件60的更换或者维修。In this embodiment, the access door 80 includes an upper electrical access door and a side component access door. The upper electrical access door is located directly above the equipment cabinet 10 and is used for the replacement of the ultraviolet lamp 62 or wiring maintenance; the side component access door is located in the seal as a whole. Below the plate 40, it is used to replace or repair the adsorption catalytic coupling purification assembly 60.
本实施例中视镜90分布在箱体10四周，用于观察紫外灯管62等部件是否 正常工作；吊耳100用于吊装；支腿110用于设备固定。In this embodiment, the sight glasses 90 are distributed around the box body 10 and are used to observe whether components such as the ultraviolet lamp tube 62 are working normally; the lifting lugs 100 are used for hoisting; the legs 110 are used for fixing the equipment.
本实施例中吸附催化耦合净化组件60为滤筒式结构，包括内侧SDG酸废气吸附净化层61、中部紫外灯管62、负载光催化剂的活性炭纤维网63、臭氧还原层64、冲孔框架65、盖板66和底板67；底板67为实心板，与冲孔框架65和盖板66以及内部支撑件形成稳定结构。In this embodiment, the adsorption catalytic coupling purification assembly 60 is a filter cartridge structure, including an inner SDG acid exhaust gas adsorption purification layer 61, a middle ultraviolet lamp tube 62, a photocatalyst-loaded activated carbon fiber mesh 63, an ozone reduction layer 64, and a punching frame 65 , Cover plate 66 and bottom plate 67; The bottom plate 67 is a solid plate, forming a stable structure with the punching frame 65, the cover plate 66 and the internal support.
优选的，在SDG酸废气吸附净化层外侧可以增设一层负载光催化剂的活性炭纤维网从而提高对紫外光的利用效率，进一步提升对VOCs的净化效率。Preferably, a layer of activated carbon fiber net supporting a photocatalyst can be added to the outside of the SDG acid exhaust gas adsorption purification layer to improve the utilization efficiency of ultraviolet light and further improve the purification efficiency of VOCs.
本实施例中内侧SDG酸废气吸附净化层61填充的SDG吸附剂为比表面积较大的固体颗粒状无机物，可以与酸性废气发生化学反应生成中性盐而存储于其中。In this embodiment, the SDG adsorbent filled in the inner SDG acid waste gas adsorption and purification layer 61 is a solid particulate inorganic substance with a larger specific surface area, which can chemically react with the acid waste gas to generate neutral salts and be stored therein.
本实施例中紫外灯管62为180nm和254nm双波段波长紫外灯，灯管材质为高纯石英玻璃。In this embodiment, the ultraviolet lamp tube 62 is a 180nm and 254nm dual-band wavelength ultraviolet lamp, and the lamp tube material is high-purity quartz glass.
本实施例中负载光催化剂的活性炭纤维网63基材为聚丙烯晴基活性炭或者粘胶基活性炭，将活性炭纤维采用硫酸和高锰酸钾进行预处理改性，通过浸渍法将光催化剂负载在活性炭纤维上。In this embodiment, the photocatalyst-loaded activated carbon fiber mesh 63 is made of polyacrylonitrile-based activated carbon or viscose-based activated carbon. The activated carbon fiber is pretreated and modified with sulfuric acid and potassium permanganate, and the photocatalyst is supported on On activated carbon fiber.
优选的活性炭纤维网基材选用聚丙烯晴基活性炭，光催化剂采用市售P25二氧化钛，同时保证紫外光在活性炭纤维网上的光照强度为2mW/cm 2。 The preferred activated carbon fiber net base material is polypropylene acrylic activated carbon, and the photocatalyst is commercially available P25 titanium dioxide, while ensuring that the intensity of ultraviolet light on the activated carbon fiber net is 2 mW/cm 2 .
本实施例中臭氧还原层64是由锰、铜、镍和钴氧化物组成的催化剂，可以将紫外灯管62产生的多余臭氧进行有效降解。In this embodiment, the ozone reduction layer 64 is a catalyst composed of manganese, copper, nickel, and cobalt oxides, which can effectively degrade the excess ozone generated by the ultraviolet lamp 62.
本实施例中冲孔框架65材质为冲孔铝板、钢板等，是催化耦合净化组件60的骨架，可以将净化后的废气排出装置外。In this embodiment, the punching frame 65 is made of punched aluminum plate, steel plate, etc., which is the skeleton of the catalytic coupling purification assembly 60, and can discharge the purified exhaust gas out of the device.
本实施例中盖板66包括SDG盖板661、紫外灯盖板662、活性炭纤维盖板663、还原层盖板664和盖板卡扣665，其中盖板卡扣665的卡槽放置于封板40圆形滤筒槽预制的卡块处顺时针旋转便可将吸附催化耦合净化组件60固定在一体化设备中，拆卸时逆时针旋转即可，可以实现快速安装和拆卸，便于吸附催化耦合净化组件60的更换和检修。In this embodiment, the cover 66 includes an SDG cover 661, an ultraviolet lamp cover 662, an activated carbon fiber cover 663, a reduction layer cover 664, and a cover buckle 665. The slot of the cover buckle 665 is placed on the sealing plate. The prefabricated block of the 40 circular filter cartridge can be rotated clockwise to fix the adsorption catalytic coupling purification assembly 60 in the integrated device. When disassembling, it can be rotated counterclockwise, which can realize rapid installation and disassembly, which is convenient for adsorption catalytic coupling purification. Replacement and maintenance of component 60.
以上所述，仅是本发明的较佳实施例，并非对本发明作任何形式上的限制，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，依据本发明的技术实质，对以上实施例所作的任何简单的修改、等同替换与改进等，均仍属于本发明技术方案的保护范围之内。The above are only the preferred embodiments of the present invention, and do not limit the present invention in any form. Any person familiar with the profession, without departing from the scope of the technical solution of the present invention, is based on the technical essence of the present invention. Any simple modifications, equivalent replacements, and improvements made in the above embodiments still fall within the protection scope of the technical solution of the present invention.

Claims (10)

  1. 一种吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：包括设备箱体(10)、废气进口(20)、静压箱(30)，所述设备箱体(10)内置有吸附催化耦合净化组件(60)，所述静压箱(30)设于设备箱体(10)上方，所述的设备箱体(10)上部与废气进口(20)相连，且废气进口(20)与所述静压箱(30)贯通；所述吸附催化耦合净化组件(60)为滤筒式结构，具有冲孔框架(65)形成的骨架以及盖板(66)，吸附催化耦合净化组件(60)包括内侧SDG酸废气吸附净化层(61)、中部紫外灯管(62)、外侧的负载光催化剂的活性炭纤维网(63)和臭氧还原层(64)；设备箱体(10)侧面设有废气出口(70)。An integrated equipment for the treatment of acidic waste gas and organic waste gas by adsorption and catalytic coupling, which is characterized in that it comprises an equipment box (10), an exhaust gas inlet (20), a static pressure box (30), and the equipment box (10) is built-in There is an adsorption catalytic coupling purification assembly (60), the static pressure box (30) is arranged above the equipment box (10), the upper part of the equipment box (10) is connected with the exhaust gas inlet (20), and the exhaust gas inlet ( 20) Through the static pressure tank (30); the adsorption catalytic coupling purification assembly (60) is a filter cartridge structure, with a skeleton formed by a punching frame (65) and a cover plate (66), and adsorption catalytic coupling purification The component (60) includes the inner SDG acid exhaust gas adsorption purification layer (61), the middle ultraviolet lamp tube (62), the outer photocatalyst-loaded activated carbon fiber mesh (63) and the ozone reduction layer (64); equipment box (10) An exhaust gas outlet (70) is provided on the side.
  2. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述的静压箱(30)底部为封板(40)，在封板(40)上均匀布置有多个圆形滤筒槽，所述的圆形滤筒槽内放置吸附催化耦合净化组件(60)。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, wherein the bottom of the static pressure box (30) is a sealing plate (40), and the sealing plate (40) is uniform A plurality of circular filter cartridge grooves are arranged, and adsorption catalytic coupling purification components (60) are placed in the circular filter cartridge grooves.
  3. 根据权利要求2所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述的封板(40)上设有线槽(50)，所述线槽(50)包括布置在圆形滤筒槽外侧的环形线槽(501)和方形线槽(502)，其中方形线槽(502)位于环形线槽(501)一侧，并且相互连通；所述线槽(50)上下通过可伸缩的开口阻隔齿进行可拆卸式装配。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 2, characterized in that: the sealing plate (40) is provided with a wire groove (50), and the wire groove (50) includes an arrangement The annular wire groove (501) and the square wire groove (502) on the outside of the circular filter cartridge groove, wherein the square wire groove (502) is located on the side of the circular wire groove (501) and communicates with each other; the wire groove (50) The upper and lower parts are detachably assembled through the retractable opening blocking teeth.
  4. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：设备设有检修门(80)，包括上端电气检修门和侧面组件检修门，其中上端电气检修门位于设备箱体(10)的正上方，用于紫外灯管(62)更换或者接线维修；侧面组件检修门整***于封板(40)下方，用于吸附催化耦合净化组件(60)的更换或者维修。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, characterized in that: the equipment is provided with an inspection door (80), including an upper electrical inspection door and a side assembly inspection door, wherein the upper electrical inspection door Located directly above the equipment box (10), used for the replacement of the ultraviolet lamp (62) or wiring maintenance; the side component access door is located under the sealing plate (40) as a whole, used for the replacement of the adsorption catalytic coupling purification component (60) or service.
  5. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：设备箱体(10)四周设有视镜(90)，用于观察紫外灯管(62)等部件是否正常工作；设备箱体(10)还设有吊耳(100)和支腿(110)，吊耳(100)用于吊装，支腿(110)用于设备固定。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, characterized in that: a sight glass (90) is arranged around the equipment box (10) for observing the ultraviolet lamp tube (62), etc. Whether the components are working normally; the equipment box (10) is also provided with lifting ears (100) and legs (110), the lifting ears (100) are used for hoisting, and the supporting legs (110) are used for fixing the equipment.
  6. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述吸附催化耦合净化组件(60)的底板(67)为实心板，与冲孔框架(65)和盖板(66)以及内部支撑件形成稳定结构。The integrated equipment for the adsorption and catalytic coupling treatment of acidic exhaust gas and organic waste gas according to claim 1, characterized in that: the bottom plate (67) of the adsorption catalytic coupling purification assembly (60) is a solid plate, and a punching frame (65) ), the cover plate (66) and the internal support members form a stable structure.
  7. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述盖板(66)上包括SDG酸废气吸附净化层上部用于固定的SDG盖板(661)、紫外灯管(62)上部用于固定的紫外灯盖板(662)、负载光催化剂的活性炭纤维网(63)上部用于固定的活性炭纤维盖板(663)、臭氧还原层(64)上部用于固定的还原层盖板(664)、盖板卡扣(665)；所述盖板卡扣(665)具有卡槽，在封板(40)圆形滤筒槽上设有卡块，所述盖板卡扣(665)的卡槽与封板(40)圆形滤筒槽的卡块相应。The integrated device for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, wherein the cover plate (66) comprises an SDG cover plate (661) on the upper part of the SDG acid waste gas adsorption purification layer for fixing ), the upper part of the ultraviolet lamp tube (62) is used to fix the ultraviolet lamp cover (662), the photocatalyst-loaded activated carbon fiber mesh (63) is used to fix the upper part of the activated carbon fiber cover (663), and the ozone reduction layer (64) The upper part is used for fixing the reduction layer cover plate (664) and the cover plate buckle (665); the cover plate buckle (665) has a clamping groove, and a clamping block is arranged on the circular filter cartridge groove of the sealing plate (40) , The card slot of the cover plate buckle (665) corresponds to the card block of the circular filter cartridge groove of the sealing plate (40).
  8. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述的内侧SDG酸废气吸附净化层(61)填充的SDG吸附剂为比表面积较大的固体颗粒状无机物，可与酸性废气发生化学反应生成中性盐而存储于其中；所述紫外灯管(62)为180nm和254nm双波段波长紫外灯，灯管材质为高纯石英玻璃。The integrated device for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, wherein the SDG adsorbent filled in the inner SDG acid waste gas adsorption purification layer (61) is a solid with a larger specific surface area. The granular inorganic substance can chemically react with the acid exhaust gas to generate neutral salt and be stored therein; the ultraviolet lamp tube (62) is a 180nm and 254nm dual-band wavelength ultraviolet lamp, and the lamp tube material is high-purity quartz glass.
  9. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述负载光催化剂的活性炭纤维网(63)基材为聚丙烯晴基活性炭或者粘胶基活性炭，将活性炭纤维采用硫酸和高锰酸钾进行预处理改性，通过浸渍法将光催化剂负载在活性炭纤维上；所述臭氧还原层(64)是由锰、铜、镍和钴氧化物组成的催化剂，可将紫外灯管(62)产生的多余臭氧进行有效降解。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, wherein the photocatalyst-loaded activated carbon fiber net (63) substrate is polyacrylonitrile-based activated carbon or viscose-based activated carbon , The activated carbon fiber is pretreated and modified with sulfuric acid and potassium permanganate, and the photocatalyst is loaded on the activated carbon fiber by dipping; the ozone reduction layer (64) is composed of manganese, copper, nickel and cobalt oxides The catalyst can effectively degrade the excess ozone generated by the ultraviolet lamp tube (62).
  10. 根据权利要求1所述的吸附催化耦合处理酸性废气及有机废气的一体化设备，其特征在于：所述冲孔框架(65)材质为冲孔铝板或钢板，是催化耦合净化组件(60)的骨架，净化后的废气从冲孔框架(65)的网孔排出。The integrated equipment for the adsorption and catalytic coupling treatment of acidic waste gas and organic waste gas according to claim 1, wherein the punching frame (65) is made of punched aluminum or steel plate, which is made of a catalytic coupling purification assembly (60). Frame, the purified exhaust gas is discharged from the mesh of the punching frame (65).
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