CN219291062U

CN219291062U - Electrodeless microwave catalytic oxidation equipment for horizontal zeolite molecular sieve

Info

Publication number: CN219291062U
Application number: CN202320813734.6U
Authority: CN
Inventors: 朱维君
Original assignee: Maxwell Wuxi Technology Co ltd
Current assignee: Maxwell Wuxi Technology Co ltd
Priority date: 2023-04-13
Filing date: 2023-04-13
Publication date: 2023-07-04
Anticipated expiration: 2033-04-13

Abstract

The utility model discloses a horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device which comprises an electrodeless microwave catalytic oxidation module, a honeycomb zeolite molecular sieve adsorption module, a deodorizing module, a gas conveying module, a box body and an electric switch, wherein the electrodeless microwave catalytic oxidation module comprises an electrodeless microwave module and a catalytic plate, the electrodeless microwave module comprises an electromagnetic resonance box, a driving power supply and a microwave generator are arranged on the electromagnetic resonance box, and a quartz tube and a shielding net are arranged in the electromagnetic resonance box; the microwave generator comprises a magnetron, wherein a microwave transmitting antenna is arranged on the magnetron; an SDG dry-type filtering module is arranged between the honeycomb zeolite molecular sieve adsorption module and the ozone removal module. The device can solve the problems of slow air leakage phenomenon caused by fusion of the electrode ultraviolet lamp and glass, short service life, troublesome wiring and poor treatment efficiency of the device on acid gas in the background technology.

Description

Electrodeless microwave catalytic oxidation equipment for horizontal zeolite molecular sieve

Technical Field

The utility model relates to the technical field of waste gas purification treatment, in particular to a horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device.

Background

Exhaust gases having complex components and varying concentrations are produced in industrial production or chemical experiments. According to environmental regulations, the waste gases must be treated by environmental protection purification equipment to reach the standard before being discharged into the atmosphere.

Thus, patent document publication No.: CN202222065747.8, which comprises a box body, an air inlet, an air outlet and a control circuit, wherein the air inlet and the air outlet are arranged on the box body and are respectively used for air inlet and air outlet, and a microprocessor is arranged in the control circuit, so that the electric elements in the device can be controlled and managed uniformly; the novel photocatalytic device comprises a box body, and is characterized by further comprising a gas conveying module, a transverse partition plate, a vertical partition plate, a filtering module, a photocatalytic module and a honeycomb zeolite molecular sieve adsorption module, wherein the gas conveying module can filter gas entering the box body and gas discharged from the box body, a plurality of groups of the photocatalytic module and a plurality of groups of honeycomb zeolite molecular sieve adsorption modules corresponding to the photocatalytic module in position are further arranged, the honeycomb zeolite molecular sieve in the honeycomb zeolite molecular sieve adsorption module can adsorb and screen impurities in the gas, the pollutants are firmly controlled in holes of the zeolite molecular sieve, and then organic matters are continuously, stably and fully degraded under the action of the photocatalytic module, the photocatalytic module comprises a UV lamp tube and a catalytic plate, and the photocatalytic module is positioned between a primary filter and an ozone elimination layer and can primarily filter the gas to be treated, so that dust and other large-particle impurities are prevented from polluting the photocatalytic module.

However, the above technique has the following problems: 1. the electrode ultraviolet lamp adopted in the prior art belongs to an extreme ultraviolet lamp, and because of the electrode, the slow gas leakage phenomenon of welding an electrode guide wire and glass during the encapsulation of the electrode and quartz glass can exist, and because of the filament, the service life of the lamp tube is short, the wiring is troublesome, and the problem of mutual electromagnetic interference exists. 2. The electrode lamp tube can generate electric arc at any time, and explosion danger exists. 3. The prior art has been developed for the treatment of organic matter, but the treatment efficiency of inorganic acid gases is poor.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device, which aims to solve the problems of slow gas leakage phenomenon caused by welding of an electrode ultraviolet lamp with glass, short service life, troublesome wiring and poor treatment efficiency of the device on acid gas in the prior art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation equipment comprises an electrodeless microwave catalytic oxidation module, a honeycomb zeolite molecular sieve adsorption module, a deodorizing module, a gas conveying module, a box body and an electric switch, wherein the electrodeless microwave catalytic oxidation module, the honeycomb zeolite molecular sieve adsorption module and the deodorizing module are sequentially arranged in the box body from left to right, the electrodeless microwave catalytic oxidation module comprises an electrodeless microwave module and a catalytic plate, the electrodeless microwave module comprises an electromagnetic resonance box, a driving power supply and a microwave generator which are connected are arranged on the electromagnetic resonance box, and a quartz tube and a shielding net are arranged in the electromagnetic resonance box;

the microwave generator comprises a magnetron, wherein a microwave transmitting antenna is arranged on the magnetron; an SDG dry-type filtering module is arranged between the honeycomb zeolite molecular sieve adsorption module and the ozone removal module.

Preferably, the quartz tube is a vacuum quartz glass tube and the quartz glass tube is filled with a mixture of vaporizable metal and a rare gas, typically solid mercury, liquid mercury and a zirconium vanadium aluminum getter.

Preferably, the shielding nets are disposed at both sides of the electromagnetic resonance box, the shielding nets seal the quartz tube inside the electromagnetic resonance box, the metal net has an isolating effect on microwaves, since microwaves emitted from the magnetron cannot penetrate through metal substances, and the metal net is provided with holes with diameters smaller than 3mm, the microwaves can be completely shielded (which is determined by the wavelength properties of the microwaves), and therefore, the metal plate or the metal net has a good shielding effect on the microwaves.

Preferably, a microwave waveguide is arranged inside the microwave generator.

Preferably, a cooling fan is arranged in the microwave generator, and the cooling fan is arranged to cool the magnetron, so that the influence on the normal operation of the magnetron due to the overhigh temperature of the magnetron is avoided.

The utility model provides a horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device, which has the following beneficial effects:

1. according to the utility model, the electrodeless microwave technology is adopted, the mixture of the evaporable metal and the rare gas is filled in the quartz tube, and the lamp tube is free of electrodes, so that the phenomenon of slow gas leakage caused by welding of the electrode guide wire and glass during packaging of the electrodes and the quartz glass is avoided, and the lamp tube is free of filaments, so that the problem that the starting times of the lamp tube are inversely proportional to the service life of the lamp tube is avoided, the service life is long, meanwhile, wiring is not needed, the installation is simple and convenient, electric arcs are not generated, and the lamp tube has a superior explosion-proof effect;

2. the utility model adds the SDG dry adsorption section, when the diffusion motion of the acid gas in the purified gas reaches the adsorption force field on the surface of the SDG adsorbent, the acid gas is fixed on the surface of the SDG adsorbent, and then the acid gas chemically reacts with the active components to generate a new neutral salt substance which is stored in the structure of the SDG adsorbent, thereby greatly improving the treatment efficiency of the device on the inorganic acid gas.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic diagram of the structure of the electrodeless microwave module of the present utility model;

FIG. 3 is a front view of FIG. 2;

FIG. 4 is a schematic diagram of an electrodeless microwave module of the present utility model;

fig. 5 is a schematic diagram of an electrodeless microwave catalytic oxidation module of the present utility model.

In the figure:

1. an electrodeless microwave catalytic oxidation module; 101. an electrodeless microwave module; 1011. an electromagnetic resonance box; 1012. a microwave generator; 1013. a quartz tube; 1014. a driving power supply; 1015. a shielding net; 102. a catalytic plate; 2. a honeycomb zeolite molecular sieve adsorption module; 3. an SDG dry filter module; 4. an ozone removal module; 5. a gas delivery module; 6. a box body.

The apparatus of the present utility model is available both commercially and by private customization.

Detailed Description

The technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and all other embodiments obtained by those skilled in the art without making creative efforts based on the embodiments of the present utility model are included in the protection scope of the present utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation equipment comprises an electrodeless microwave catalytic oxidation module 1, a honeycomb zeolite molecular sieve adsorption module 2, a deodorizing module 4, a gas conveying module 5, a box body 6 and an electric switch, wherein the electrodeless microwave catalytic oxidation module 1, the honeycomb zeolite molecular sieve adsorption module 2 and the deodorizing module 4 are sequentially arranged in the box body 6 from left to right, the electrodeless microwave catalytic oxidation module 1 comprises an electrodeless microwave module 101 and a catalytic plate 102, the electrodeless microwave module 101 comprises an electromagnetic resonant box 1011, a driving power supply 1014 and a microwave generator 1012 which are connected are arranged on the electromagnetic resonant box 1011, and a quartz tube 1013 and a shielding net 1015 are arranged in the electromagnetic resonant box 1011; the microwave generator 1012 includes a magnetron on which a microwave transmitting antenna is mounted; an SDG dry type filtering module 3 is arranged between the honeycomb zeolite molecular sieve adsorption module 2 and the ozone removal module 4.

In this embodiment, the quartz tube 1013 is a vacuum quartz glass tube, and a mixture of a vaporizable metal and a rare gas is filled in the quartz glass tube; the rare gas has the function of exciting plasma discharge, when the quartz tube 1013 is placed in a microwave field, the rare gas is excited to generate low-pressure plasma, and the vaporizable metal is changed into a vapor state by heat generated by the plasma discharge, so that more plasma is generated, the plasma pressure is increased, more energy is released, and higher luminous efficiency is formed.

In this embodiment, the electromagnetic resonance box 1011 has a frame structure, and the inside of the frame is a hollow structure, the shielding mesh 1015 is disposed at two sides of the electromagnetic resonance box 1011, and the shielding mesh 1015 seals the quartz tube 1013 inside the electromagnetic resonance box 1011; the electromagnetic resonance box 1011 is a common metal box body, and microwaves in the electromagnetic resonance box 1011 are filled in the whole metal box body due to reflection and refraction, namely, the whole metal box body is provided with a high-energy microwave area, and inert gas in an electrodeless lamp tube positioned in the area can be ionized to excite ultraviolet light with the wavelength of 140 nm-400 nm.

In this embodiment, a microwave waveguide is disposed inside the microwave generator 1012, and by disposing the microwave waveguide, microwaves emitted from the microwave transmitting antenna can be transferred into the electromagnetic resonance box 1011, so that the whole metal box body is filled with the microwaves through reflection and refraction in the electromagnetic resonance box 1011.

In this embodiment, the microwave generator 1012 is internally provided with a cooling fan, and the cooling fan is arranged to cool the magnetron, so that the normal operation of the magnetron is prevented from being influenced due to the too high temperature of the magnetron.

Working principle:

the waste gas firstly passes through the electrodeless microwave catalytic oxidation module 1, the electrodeless microwave catalytic oxidation module 1 consists of an electrodeless microwave module 101 and a catalytic plate 102, a magnetron in the electrodeless microwave module 101 converts electric energy provided by a driving power supply into microwave energy, the microwave energy is output by a microwave antenna and is output to an electromagnetic resonance box through a waveguide, microwaves in the resonance box are filled in the whole box body due to reflection and refraction, a high-energy microwave area is formed in the resonance box, and inert gas in an electrodeless quartz tube in the area can be ionized and excited to generate ultraviolet light with the wavelength of 140 nm-400 nm.

After the ultraviolet light of-C band generated by the electrodeless microwave module 101 irradiates the TIO2 catalytic plate 102 (eg=3.2 eV), the catalytic plate 102 absorbs photons with a wavelength less than or equal to 387.5nm, electrons in the valence band are excited to the conduction band to form negatively charged high-activity electrons, and positively charged holes are generated on the valence band. The photo-generated electrons have strong reducibility, the photo-generated holes have strong oxidability, and the photo-generated electrons and the photo-generated holes can form an oxidation-reduction system. Meanwhile, the photo-generated holes can react with OH < - > or H20 adsorbed on the surface of the catalyst particles to generate OH, which is an oxide species with higher activity, and can oxidize and mineralize various organic matters to generate low-molecular compounds, water and carbon dioxide, thereby achieving the functions of cracking and deodorizing. Ozone and intense ultraviolet light generated by the gas during pyrolysis also kills a substantial portion of the microorganisms in the gas.

And then when the gas passes through the honeycomb zeolite molecular sieve adsorption module 2, the pollutants adsorbed and sieved by the honeycomb zeolite molecular sieve can be firmly controlled in the holes of the zeolite molecular sieve, and the pollutants are continuously, stably and fully oxidized and degraded under the combined action of the photo-generated strong oxidant and the catalytic plate.

When the diffusion motion of the acid gas in the purified gas reaches the adsorption force field on the surface of the SDG adsorbent, the acid gas is fixed on the surface of the SDG adsorbent, and then chemically reacts with the active components in the acid gas to generate a new neutral salt substance which is stored in the structure of the SDG adsorbent, so that the treatment efficiency of the device on the inorganic acid gas is greatly improved.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation equipment, includes electrodeless microwave catalytic oxidation module (1), honeycomb zeolite molecular sieve adsorption module (2), deodorization module (4), gas delivery module (5), box (6) and electric switch, electrodeless microwave catalytic oxidation module (1), honeycomb zeolite molecular sieve adsorption module (2), deodorization module (4) are from left to right arranged in proper order inside box (6), its characterized in that: the electrodeless microwave catalytic oxidation module (1) comprises an electrodeless microwave module (101) and a catalytic plate (102), wherein the electrodeless microwave module (101) comprises an electromagnetic resonance box (1011) provided with a driving power supply (1014) and a microwave generator (1012) which are connected, and a quartz tube (1013) and a shielding net (1015) are arranged in the electromagnetic resonance box (1011);

the microwave generator (1012) comprises a magnetron on which a microwave transmitting antenna is mounted;

an SDG dry type filtering module (3) is arranged between the honeycomb zeolite molecular sieve adsorption module (2) and the ozone removal module (4).

2. The horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device as claimed in claim 1, wherein: the quartz tube (1013) is a vacuum quartz glass tube, and a mixture of a vaporizable metal and a rare gas is filled in the quartz glass tube.

3. The horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device as claimed in claim 1, wherein: the shielding nets (1015) are arranged on two sides of the electromagnetic resonance box (1011), and the quartz tube (1013) is sealed inside the electromagnetic resonance box (1011) by the shielding nets (1015).

4. The horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device as claimed in claim 1, wherein: a microwave waveguide is arranged inside the microwave generator (1012).

5. The horizontal zeolite molecular sieve electrodeless microwave catalytic oxidation device as claimed in claim 1, wherein: a radiator fan is arranged in the microwave generator (1012).