CN108975448B - Magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system - Google Patents
Magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system Download PDFInfo
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- CN108975448B CN108975448B CN201811184314.6A CN201811184314A CN108975448B CN 108975448 B CN108975448 B CN 108975448B CN 201811184314 A CN201811184314 A CN 201811184314A CN 108975448 B CN108975448 B CN 108975448B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/302—Treatment of water, waste water, or sewage by irradiation with microwaves
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/28—Treatment of water, waste water, or sewage by sorption
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/004—Seals, connections
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Water Treatment By Sorption (AREA)
- Catalysts (AREA)
Abstract
The application discloses a magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, which comprises a waveguide tube, a #1 annular porous plate, an anti-vortex cone, a sewage pipe inner core, a microwave permeable sewage pipe, a #2 annular porous plate and a microwave generating unit, wherein the microwave generating unit comprises a magnetron cover and a magnetron, the magnetron cover comprises a magnetron front cover, a magnetron cover connecting body, a magnetron rear cover, a magnetron upper part fixing device and a magnetron lower part fixing device, and both ends of the system are respectively connected with a sewage inlet and a sewage outlet of a conventional sewage pipe through flanges. The system has the advantages of good sewage treatment effect, high microwave energy utilization rate, full contact of the catalyst (or adsorbent) with microwaves and no extra occupation of plant area.
Description
Technical Field
The application relates to a sewage treatment system, in particular to a magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system.
Background
The technology of microwave reinforced multiphase catalysis/adsorption sewage treatment has been widely focused by scholars and engineers and has found some engineering applications. When the traditional microwave enhanced sewage treatment reactor works, firstly, microwaves are generated by a magnetron, and the generated microwaves enter a microwave cavity through a waveguide tube to radiate a catalyst (or an adsorbent) in the microwave cavity. However, in the sewage treatment process, on one hand, the microwave cavity occupies a larger space, and in addition, microwaves in the microwave cavity can also return to the magnetron through the waveguide tube, so that the damage to the magnetron is generated, and the maintenance frequency is increased.
Disclosure of Invention
The application aims to provide a magnetron built-in microwave enhanced multiphase catalysis/adsorption fluidized bed sewage treatment system.
The application aims at realizing the following technical scheme:
the application relates to a magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, which comprises a waveguide tube, #1 annular porous plate, an anti-vortex cone, a sewage pipe inner core, a permeable microwave sewage pipe, #2 annular porous plate and a microwave generation unit, wherein the microwave generation unit comprises a magnetron cover and a magnetron, the magnetron cover comprises a magnetron front cover, a magnetron cover connector, a magnetron rear cover, a magnetron upper part fixer and a magnetron lower part fixer, and both ends of the system are respectively connected with a sewage inlet and a sewage outlet of a conventional sewage pipe through flanges.
According to the technical scheme provided by the application, the magnetron built-in microwave enhanced multiphase catalysis/adsorption fluidized bed sewage treatment system provided by the embodiment of the application omits a microwave cavity by arranging the magnetron in the sewage flow pipeline; by embedding the sewage treatment system in the sewage flow pipeline, the space occupied by the sewage treatment system is greatly saved; by arranging a magnetron housing, a sewer inner core and two annular porous plates in the sewage flow pipeline, favorable conditions are provided for fluidization of the catalyst (or adsorbent); the magnetron cover, the sewage pipe inner core and the vortex-preventing cone are arranged in the sewage flow pipeline, so that the water conservancy condition is effectively improved; by providing two annular porous plates in the system, a closed space for microwaves can be formed with the waveguide tube, so that the working range of the microwave oven is the same as that of the catalyst (or adsorbent). The system has the advantages of no extra occupied space, high microwave energy utilization rate, low maintenance frequency and sufficient contact between microwaves and the catalyst (or adsorbent).
Drawings
FIG. 1 is a front view of a magnetron-built-in microwave-enhanced heterogeneous catalytic/adsorptive fluidized bed sewage treatment system according to an embodiment of the present application;
FIG. 2 is a schematic illustration of a magnetron built-in microwave enhanced heterogeneous catalytic/adsorptive fluidized bed sewage treatment system according to an embodiment of the present application;
FIG. 3 is a schematic view of a #1 annular perforated plate in a magnetron-built-in microwave-enhanced heterogeneous catalytic/adsorption fluidized bed sewage treatment system according to an embodiment of the application;
FIG. 4 is a schematic view of a #2 annular perforated plate in a magnetron-built-in microwave-enhanced heterogeneous catalytic/adsorptive fluidized bed sewage treatment system according to an embodiment of the present application;
fig. 5 is a schematic view of a magnetron cover in a magnetron built-in type microwave enhanced multiphase catalysis/adsorption fluidized bed sewage treatment system according to an embodiment of the application.
In the figure:
1-a waveguide; 2- #1 annular porous plate; 3-vortex-preventing cone; 4-a sewer pipe inner core; 5-a microwave-transparent sewer pipe; 6- #2 annular porous plate; 7-a microwave generating unit; 8-a conventional sewer pipe; 9-a flange; 10-a sewage inlet; 11-a sewage outlet; 7-1-magnetron housing; 7-2-magnetron; 7-1-1-magnetron front cover; 7-1-2-magnetron housing connection; 7-1-3-magnetron rear housing; a-upper holder of magnetron; b-lower holder of magnetron.
Detailed Description
Embodiments of the present application will be described in further detail below. What is not described in detail in the embodiments of the present application belongs to the prior art known to those skilled in the art.
The sewage treatment system of the magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed of the application has the preferred specific embodiment shown in fig. 1 to 5:
the microwave generating unit comprises a magnetron cover and a magnetron, wherein the magnetron cover comprises a magnetron front cover, a magnetron cover connecting body, a magnetron rear cover, a magnetron upper fixing device and a magnetron lower fixing device, and both ends of the system are respectively connected with a sewage inlet and a sewage outlet of a conventional sewage pipe through flanges.
The waveguide tube, the vortex-preventing cone, the sewage pipe inner core, the microwave-permeable sewage pipe and the magnetron cover are concentric rings on any cross section, and the geometric centers are on the same vertical line.
The inner diameter L of the microwave-transparent sewage pipe 5 and the conventional sewage pipe 8 1 The same applies.
The distance L between the #1 annular porous plate 2 and the #2 annular porous plate 6 is the length L of the sewer pipe inner core 4 4 And the length L of the magnetron front cover 7-1-1 3 The sum of the lengths L of the inner cores 4 of the sewage pipes 4 Length L of the magnetron front cover 7-1-1 3 The ratio of the front cover of the magnetron is 3-6, the length L of the front cover 7-1-1 of the magnetron 3 Length L of the magnetron rear cover 7-1-3 2 Equal, the length L of the magnetron front cover 7-1-1 3 10-15cm.
The vortex-preventing cone has a height L of 3 5 And the outer diameter L of the bottom surface of the vortex-preventing cone 3 6 The ratio is 1-4, the diameter L of the bottom surface of the vortex-proof cone 3 6 2-4cm.
The diameter D of the open holes of the #1 annular porous plate 2 and the #2 annular porous plate 6 are the same, the open hole ratio is 90-95% and the diameters D of the #1 annular porous plate 2 and the #2 annular porous plate 6 are the same, and the diameters D of the #1 annular porous plate 2 and the #2 annular porous plate 6 are the same and the diameters L of the conventional sewage pipe 8 are the same 1 The same, the #1 annular porous plate 2 has a small diameter D 1 Diameter L of the bottom surface of the vortex-preventing cone 3 6 The same, the #2 annular porous plate 6 has a small diameter D 2 Diameter L of bottom surface of the magnetron front cover 7-1-1 7 The same applies.
The microwave-permeable sewage pipe is made of a material which can be completely penetrated by microwaves, and the inner wall of the waveguide pipe is closely attached to the outer wall of the microwave-permeable sewage pipe but is not bonded.
The magnetron housing is made of a sewage corrosion resistant material, and the magnetron front housing is made of a microwave-transparent material.
The sewer pipe inner core is made of a completely reflective microwave material.
The upper fixing device A and the lower fixing device B of the magnetron are four completely consistent cylindrical fixing rods, the upper fixing device A of the magnetron is arranged on the bottom surface of the front cover 7-1-1 of the magnetron in pairs, the central axes of each pair of fixing devices are on a straight line, the straight lines of the two pairs of fixing devices are perpendicular to each other, the lower fixing device B of the magnetron is arranged on the bottom surface of the rear cover 7-1-3 of the magnetron in pairs, the central axes of each pair of fixing devices are on a straight line, and the straight lines of the two pairs of fixing devices are perpendicular to each other.
In order to solve the problems in the prior art, the application improves the traditional microwave enhanced sewage treatment reactor, and an effective thought is to fully utilize the internal space of the waveguide tube and cancel the microwave cavity.
In utilizing the interior space of the waveguide, one typical form of utilization is for the wastewater to flow in the waveguide where the catalyst (or adsorbent) operates. This form of use produces at least three beneficial effects. Firstly, a microwave cavity can be omitted, so that the space required by sewage treatment is greatly saved; secondly, as the microwaves directly radiate sewage and catalyst (or adsorbent) in the waveguide tube, the microwaves returned to the magnetron can be reduced or even eliminated, and the service life of the magnetron is prolonged; third, the waveguide tube can be used as a sewage flow channel and is embedded in the sewage flow pipeline, which is equivalent to adding a section of special sewage flow pipeline with sewage treatment function into the common sewage flow pipeline, so that the space which is occupied by sewage treatment can be saved or even eliminated.
According to the magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, the space occupied by the microwave cavity is saved by fully utilizing the space inside the waveguide tube; by embedding the sewage treatment system in the sewage flow pipeline, the space occupied by sewage treatment is further saved; by providing two annular porous plates, a mode of restricting microwaves and catalyst (or adsorbent) to work in the same space is realized; the microwave energy utilization rate is greatly improved by directly contacting the microwave with sewage and the catalyst (or adsorbent) after the microwave is emitted from the microwave energy output device.
Specific examples:
as shown in fig. 1 to 5, the sewage treatment system comprises a waveguide tube 1, #1 annular porous plate 2, an anti-vortex cone 3, a sewage pipe inner core 4, a microwave-permeable sewage pipe 5, #2 annular porous plate 6 and a microwave generation unit 7, wherein the microwave generation unit 7 consists of a magnetron cover 7-1 and a magnetron 7-2, the magnetron cover 7-1 consists of a magnetron front cover 7-1, a magnetron cover connector 7-1-2, a magnetron rear cover 7-1-3, a magnetron upper holder A and a magnetron lower holder B, and both ends of the system are respectively connected with a sewage inlet and a sewage outlet of a conventional sewage pipe 8 through flanges 9. The system is characterized in that the magnetron is arranged in the sewage flowing pipeline, so that after microwaves are emitted from the magnetron, the microwaves are directly contacted with sewage and a catalyst (or an adsorbent), the energy utilization rate of the microwaves is improved, and the microwaves returned to the magnetron are reduced or even eliminated; the two annular porous plates arranged in the system have double functions, on one hand, microwaves are limited to space work between the two annular porous plates, and on the other hand, the catalyst (or adsorbent) is limited to space work between the two annular porous plates.
In the magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, specifically, the waveguide tube 1, the vortex-preventing cone 3, the sewage pipe inner core 4, the microwave-permeable sewage pipe 5, the magnetron cover 7-1 is concentric rings on any cross section, and the geometric centers are on the same vertical line. By adopting the structure, the water flow, the catalyst (or the adsorbent) and the microwaves can be uniformly distributed in the whole sewage treatment system, and meanwhile, the water flow and the catalyst (or the adsorbent) can be fully contacted with the microwaves.
In the magnetron-built-in microwave-enhanced multiphase catalytic/adsorptive fluidized bed sewage treatment system described above, specifically, the inner diameters L of the microwave-permeable sewage pipe 5 and the conventional sewage pipe 8 1 The same applies. By adopting this structure, the sewage treatment system can be sealed with a conventional sewage pipe by flange connection.
In the magnetron built-in microwave enhanced multiphase catalytic/adsorption fluidized bed sewage treatment system, specifically, the distance L between the #1 annular porous plate 2 and the #2 annular porous plate 6 is the length L of the sewage pipe inner core 4 4 And the length of the magnetron front cover 7-1-1L 3 The sum of the lengths L of the inner cores 4 of the sewage pipes 4 Length L of the magnetron front cover 7-1-1 3 The ratio of the front cover of the magnetron is 3-6, the length L of the front cover 7-1-1 of the magnetron 3 Length L of the magnetron rear cover 7-1-3 2 Equal, the length L of the magnetron front cover 7-1-1 3 10-15cm. By adopting the structure, the magnetron front cover can effectively protect the microwave energy output device and play a role of vortex prevention. The space enclosed by the magnetron front cover, the sewer pipe inner core and the microwave permeable sewer pipe can provide favorable conditions for microwave conduction and fluidization of the catalyst (or adsorbent) at the same time. Preferably, the sewage pipe inner core length L 4 And the magnetron front shroud L 3 The ratio is 4.5, the length L of the front cover of the magnetron 3 13cm.
In the magnetron built-in microwave enhanced multiphase catalysis/adsorption fluidized bed sewage treatment system, in particular, the vortex-preventing cone has a height L of 3 5 And the outer diameter L of the bottom surface of the vortex-preventing cone 3 6 The ratio is 1-4, the diameter L of the bottom surface of the vortex-proof cone 3 6 2-4cm. By adopting the structure, after sewage flows out of the sewage treatment system, vortex can be effectively prevented from being generated at one end of the inner core of the sewage pipe, which is close to the sewage outlet. Preferably, the vortex-preventing cone height L 5 And the outer diameter L of the bottom surface of the vortex-proof cone 6 The ratio is 2, the diameter L of the bottom surface of the vortex-proof cone 6 Is 3cm.
In the magnetron built-in microwave enhanced multiphase catalysis/adsorption fluidized bed sewage treatment system, specifically, the diameters D of the openings of the #1 annular porous plate 2 and the #2 annular porous plate 6 are the same, the diameters D are 1.5-2.5mm, the opening ratios are 90-95%, the diameters D of the #1 annular porous plate 2 and the #2 annular porous plate 6 are the same, and the diameters D are the same as the inner diameter L of the conventional sewage pipe 8 1 The same, the #1 annular porous plate 2 has a small diameter D 1 Diameter L of the bottom surface of the vortex-preventing cone 3 6 The same, the #2 annular porous plate 6 has a small diameter D 2 Diameter L of bottom surface of the magnetron front cover 7-1-1 7 The same applies. By adopting the structure, the two annular porous plates can form a closed space for microwaves and the catalyst (or adsorbent) at the same time, but the flow of sewage is not affected at the same time. Preferably, the #1The diameter D of the annular porous plate and the diameter D of the opening of the #2 annular porous plate are 2mm, the opening ratio is 92%, the large diameter D of the #1 annular porous plate and the large diameter D of the #2 annular porous plate are 18cm, and the small diameter D of the #1 annular porous plate 1 3cm, the #2 annular porous plate has a small diameter D 2 9.7cm.
In the magnetron built-in microwave enhanced multiphase catalytic/adsorption fluidized bed sewage treatment system, in particular, microwaves can completely penetrate through the microwave-permeable sewage pipe 5, and the inner wall of the waveguide 1 and the outer wall of the microwave-permeable sewage pipe 5 are closely attached but not bonded. By adopting the structure, microwaves can penetrate the microwave-transparent sewage pipe without any obstruction, directly reach the surface of the waveguide pipe, and are reflected back into the sewage treatment system to continuously radiate sewage and catalyst (or adsorbent). If an adhesive exists between the inner wall of the waveguide tube and the outer wall of the microwave-permeable sewage pipe, the adhesive can absorb microwaves and influence normal reflection of the microwaves, and finally the efficiency of the sewage treatment system is reduced.
In the magnetron built-in type microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, particularly, the magnetron housing 7-1 is resistant to sewage corrosion, and microwaves can completely penetrate through the magnetron front housing 7-1-1. The magnetron itself is not resistant to the corrosion of the contaminated water and cannot operate in the contaminated water, so a magnetron housing is required to protect it. The front cover of the magnetron does not absorb microwaves, so that the microwaves generated by the microwave energy output device can be conducted to the surface of the sewage neutralization catalyst (or adsorbent) in an unobstructed manner.
In the magnetron built-in type microwave enhanced heterogeneous catalytic/adsorption fluidized bed sewage treatment system, in particular, the sewage pipe inner core 4 can completely reflect microwaves. By adopting the structure, the sewage pipe inner core and the inner wall of the waveguide tube form an annular space, and when microwaves propagate in the annular space, microwave fields with uniform distribution are easy to form, so that the sewage treatment effect is improved.
In the magnetron built-in microwave reinforced multiphase catalysis/adsorption fluidized bed sewage treatment system, specifically, the magnetron upper fixer A and the magnetron lower fixer B are four completely consistent cylindrical fixing rods, the magnetron upper fixer A is arranged on the bottom surface of the magnetron front cover 7-1-1 in pairs, the central axes of each pair of the fixtures are on a straight line, the straight lines of the two pairs of the fixtures are perpendicular to each other, the magnetron lower fixer B is arranged on the bottom surface of the magnetron rear cover 7-1-3 in pairs, the central axes of each pair of the fixtures are on a straight line, and the straight lines of the two pairs of the fixtures are perpendicular to each other. By adopting this structure, the magnetron upper holder and the magnetron lower holder firmly fix the magnetron in the magnetron housing attachment.
The foregoing is only a preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present application should be included in the scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims (2)
1. The utility model provides a built-in microwave enhancement heterogeneous catalysis of magnetron/absorption fluidized bed sewage treatment system which is characterized in that, including waveguide tube, #1 annular porous plate, prevent vortex awl, sewer pipe inner core, can pass through microwave sewer pipe, #2 annular porous plate, microwave generation unit, the microwave generation unit includes magnetron cover and magnetron, the magnetron cover includes magnetron front shroud, magnetron cover connector, magnetron back shroud, magnetron upper portion fixer and magnetron lower part fixer, the system both ends are respectively with sewage entry and sewage outlet connection of conventional sewer pipe through the flange;
the waveguide tube, the vortex-preventing cone, the sewage pipe inner core, the microwave-permeable sewage pipe and the magnetron cover are concentric rings on any cross section, and the geometric centers are on the same vertical line;
the microwave-permeable sewage pipe and the conventional sewage pipe have an inner diameter L 1 The same;
the distance L between the #1 annular porous plate and the #2 annular porous plate is the length L of the inner core of the sewage pipe 4 And the magnetron front shroud length L 3 The sum of the lengths L of the inner cores of the sewage pipes 4 Length L of the magnetron front cover 3 The ratio of the front cover length L of the magnetron is 3-6 3 Length L of the magnetron back cover 2 Equal, the length L of the front cover of the magnetron 3 10-15cm;
the vortex-preventing cone height L 5 And the outer diameter L of the bottom surface of the vortex-proof cone 6 The ratio is 1-4, the diameter L of the bottom surface of the vortex-proof cone 6 2-4cm;
the diameter D of the open holes of the #1 annular porous plate and the #2 annular porous plate are the same, the open hole ratio is 90-95% and the diameters D of the #1 annular porous plate and the #2 annular porous plate are the same, and the diameters D of the #1 annular porous plate and the #2 annular porous plate are the same and the diameters L of the conventional sewage pipe are the same 1 The same, the #1 annular porous plate small diameter D 1 And the diameter L of the bottom surface of the vortex-preventing cone 6 The same, the #2 annular porous plate has a small diameter D 2 Diameter L of bottom surface of front cover of magnetron 7 The same;
the microwave-permeable sewage pipe is made of a microwave-permeable material, and the inner wall of the waveguide pipe is closely attached to the outer wall of the microwave-permeable sewage pipe but is not bonded;
the magnetron cover is made of a sewage corrosion resistant material, and the magnetron front cover is made of a microwave-permeable material;
the sewer pipe inner core is made of a completely reflective microwave material.
2. The magnetron built-in microwave enhanced multiphase catalytic/adsorptive fluidized bed sewage treatment system according to claim 1, wherein the magnetron upper holder and the magnetron lower holder are four completely identical cylindrical fixing rods, the magnetron upper holder is installed on the bottom surface of the magnetron front cover in pairs, the central axes of each pair of holders are on a straight line, the straight lines of the two pairs of holders are mutually perpendicular, the magnetron lower holder is installed on the bottom surface of the magnetron rear cover in pairs, the central axes of each pair of holders are on a straight line, and the straight lines of the two pairs of holders are mutually perpendicular.
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