CN215696746U - Microwave radiation device and organic contaminated soil remediation system - Google Patents
Microwave radiation device and organic contaminated soil remediation system Download PDFInfo
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- CN215696746U CN215696746U CN202121616599.3U CN202121616599U CN215696746U CN 215696746 U CN215696746 U CN 215696746U CN 202121616599 U CN202121616599 U CN 202121616599U CN 215696746 U CN215696746 U CN 215696746U
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Abstract
The utility model provides a microwave radiation device and an organic contaminated soil remediation system, which relate to the technical field of soil remediation and comprise the following components: a radiant tube and a shield; the protection casing cover is located the tip of radiant tube, and the protection casing is provided with the connecting rod, and the one end of connecting rod has rectangular hole, and the connecting rod passes through rectangular hole and the flange joint of radiant tube. The strip hole is formed through the connecting rod on the protective cover, the bolt penetrates through the strip hole and is connected with the flange on the radiant tube, the bolt can be freely adjusted in the strip hole, the installation space is convenient to adjust, the installation is more convenient, the technical problem that the protective cover arranged on the top end of the microwave radiant tube is inconvenient to install and cannot be freely adjusted in the existing protective cover is solved.
Description
Technical Field
The utility model relates to the technical field of soil remediation, in particular to a microwave radiation device and an organic contaminated soil remediation system.
Background
As a new heating technology in the field of soil remediation, microwaves are increasingly concerned by the field of contaminated soil remediation by virtue of a unique heating mechanism and a high-efficiency and quick heating effect. Compared with the conventional heating technology, the microwave heating technology mainly has the following characteristics: (1) the heating speed is high, and the temperature of the substance is rapidly increased along with the penetration of electromagnetic waves into the material; (2) the heating is uniform, the microwave energy is absorbed simultaneously in the material and on the surface within the effective microwave influence range, so that the uniform heating inside and outside the material is realized, and the problem of overhigh local temperature near a heat source is solved; (3) the application range is wide, and the microwave with the conventional frequency can quickly heat the soil or materials with the dielectric property; (4) under certain water containing conditions, the existence of water is not the main energy consumption body any more, but one of the favorable conditions of microwave heating; (5) the microwave heating mode is green and safe, and the problem of secondary pollution is avoided.
In addition, according to related research reports, the microwave not only has a heating effect on the soil environment, but also has a non-thermal effect, namely, under the action of the microwave, when the temperature of a reaction system is far lower than the conventional heating temperature, the pollution removal efficiency is the same as that of the conventional heating. The microwave heating mode is suitable for removing various soil organic pollutants such as volatile organic compounds, semi-volatile organic compounds, petroleum hydrocarbon, pesticides and the like. However, like other thermal desorption techniques, the single microwave heating technique requires re-oxidation, incineration, or adsorption treatment of the collected exhaust gas. If the pollutants can be eliminated in situ, the process can be reduced, the cost can be saved, and the secondary pollution can be avoided. The microwave heating technology and the advanced oxidation technology are combined, and a novel microwave reinforced oxidation technology is formed by utilizing the respective advantages of the two technologies, so that a feasible path is provided.
However, the shield installed at the top end of the microwave radiation tube is inconvenient to install, and the installation position of the shield cannot be freely adjusted.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a microwave radiation device and an organic contaminated soil remediation system, so as to solve the technical problems that a protective cover arranged at the top end of a microwave radiation tube is inconvenient to install and the installation position of the protective cover cannot be freely adjusted.
In a first aspect, the present invention provides a microwave radiation device comprising: a radiant tube and a shield;
the protection casing cover is located the tip of radiant tube, the protection casing is provided with the connecting rod, the one end of connecting rod has rectangular hole, the connecting rod passes through rectangular hole with the flange joint of radiant tube.
In an alternative embodiment of the method of the present invention,
the top of protection casing has the opening, the lateral wall of protection casing is provided with the louvre.
In a second aspect, the utility model provides an organic contaminated soil remediation system, which comprises a pumping and injection well and the microwave radiation device;
the pumping and injection well is provided with a plurality of pumping and injection wells, and the pumping and injection wells are arranged at equal intervals by taking the radiant tube as the center.
In an alternative embodiment of the method of the present invention,
the pumping and injection well comprises a pumping pipe;
one end of the exhaust tube extends into soil to be repaired, and the other end of the exhaust tube is provided with a gas sampling port.
In an alternative embodiment of the method of the present invention,
and a vacuum meter is arranged on the exhaust pipe.
In an alternative embodiment of the method of the present invention,
the organic contaminated soil remediation system further comprises a liquid level meter;
and the measuring end of the liquid level meter extends into the pumping and injecting well.
In an alternative embodiment of the method of the present invention,
the pumping and injection well further comprises a medicine injection pipe;
one end of the medicine injection pipe extends into the pumping and injection well.
In an alternative embodiment of the method of the present invention,
and a flowmeter is arranged on the medicine injection pipe.
In an alternative embodiment of the method of the present invention,
the organic contaminated soil remediation system further comprises a steam-water separator and a wastewater collection tank;
the steam-water separator is communicated with the extraction pipe, the steam-water separator is communicated with the wastewater collection tank, and the steam-water separator is configured to be capable of separating steam and organic gas in the extraction pipe and conveying the steam to the wastewater collection tank.
The utility model provides a microwave radiation device, comprising: a radiant tube and a shield; the protection casing cover is located the tip of radiant tube, and the protection casing is provided with the connecting rod, and the one end of connecting rod has rectangular hole, and the connecting rod passes through rectangular hole and the flange joint of radiant tube. The strip hole is formed through the connecting rod on the protective cover, the bolt penetrates through the strip hole and is connected with the flange on the radiant tube, the bolt can be freely adjusted in the strip hole, the installation space is convenient to adjust, the installation is more convenient, the technical problem that the protective cover arranged on the top end of the microwave radiant tube is inconvenient to install and cannot be freely adjusted in the existing protective cover is solved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a shield in a microwave radiation device according to an embodiment of the present invention;
fig. 2 is a schematic overall structure diagram of a microwave radiation device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the overall structure of an organic contaminated soil remediation system according to an embodiment of the present invention;
FIG. 4 is a schematic distribution diagram of an organic contaminated soil remediation system according to an embodiment of the present invention;
fig. 5 is a process flow chart of the method for remediating organic contaminated soil according to the embodiment of the present invention.
Icon: 100-a radiant tube; 200-a protective cover; 210-a connecting rod; 211-elongated holes; 220-heat dissipation holes; 300-pumping and injecting wells; 310-an air exhaust pipe; 311-a gas sampling port; 312-vacuum gauge; 400-a liquid level meter; 500-a medicine injection tube; 600-flow meter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the description refers must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Some embodiments of the utility model are described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.
As shown in fig. 1 and fig. 2, the microwave radiation device provided in this embodiment includes: a radiant tube 100 and a shield 200; the shield 200 covers the end of the radiant tube 100, the shield 200 is provided with a connection rod 210, one end of the connection rod 210 has a long hole 211, and the connection rod 210 is connected with the flange of the radiant tube 100 through the long hole 211.
Specifically, inside the radiant tube 100 effect was radiated microwave directional to polluting soil, semi-enclosed protection casing 200 was arranged in to radiation well upper end, power cord access distribution monitored control system in the protection casing 200, the protection casing 200 lower extreme passes through connecting rod 210 to be fixed on radiant tube 100 flange, connecting rod 210 adopts metal component, the equal trompil in both ends, wherein one end trompil is longer, perhaps, two mounting holes at connecting rod 210 both ends are rectangular hole 211, the bolt can be freely remove in rectangular hole 211, after the mounted position was confirmed, the bolt passed the flange joint of mounting hole and radiant tube 100, be convenient for adjust the installation space.
In an alternative embodiment, the top of the shield 200 has an opening, and the side walls of the shield 200 are provided with heat dissipation holes 220.
Specifically, the protective cover 200 is a semi-closed type, the top of the protective cover is provided with an opening, the protective cover 200 is made of stainless steel, and the periphery of the protective cover is provided with heat dissipation holes 220 so as to dissipate heat.
As shown in fig. 3 and 4, the microwave radiation device provided in this embodiment includes: a radiant tube 100 and a shield 200; the shield 200 covers the end of the radiant tube 100, the shield 200 is provided with a connection rod 210, one end of the connection rod 210 has a long hole 211, and the connection rod 210 is connected with the flange of the radiant tube 100 through the long hole 211. Through seting up rectangular hole 211 at connecting rod 210 on protection casing 200, the bolt passes rectangular hole 211 and the flange joint on the radiant tube 100, and the bolt can freely be adjusted in rectangular hole 211, is convenient for adjust installation space, and it is more convenient to install, has alleviated the protection casing 200 installation that sets up on microwave radiant tube 100 top that exists inconvenient, the unable technical problem of freely adjusting the mounted position of protection casing 200.
The organic contaminated soil remediation system provided by the embodiment comprises a pumping and injection well 300 and a microwave radiation device; the pumping and injection wells 300 are provided in plurality, and the plurality of pumping and injection wells 300 are arranged at equal intervals centering on the radiation tube 100.
Specifically, the distribution mode of the microwave radiation device is determined according to the type of soil pollutants to be repaired and the hydrogeological conditions, regular triangles, regular hexagons or squares can be adopted, the spacing is generally 1-2m, the pumping and injection wells 300 are distributed at the geometric center of the microwave radiation device, and meanwhile, all the equipment is connected through cables and pipelines.
In an alternative embodiment, pumping well 300 includes a pump out tube 310; one end of the pumping tube 310 extends into the soil to be repaired, and the other end of the pumping tube 310 is provided with a gas sampling port 311.
Specifically, the pumping tube 310 extends into the soil to be repaired, the other end of the pumping tube 310 is located above the ground, the other end of the pumping tube 310 is provided with a gas sampling port 311, and a valve is arranged on the gas sampling port 311.
In an alternative embodiment, a vacuum gauge 312 is provided on the pump-out tube 310.
Specifically, a vacuum gauge 312 is installed on the suction pipe 310, the vacuum gauge 312 is located above the ground, and the vacuum gauge 312 is used for displaying the pressure of the suction pipe 310 so that the relevant staff can know the working state of the suction pipe 310.
In an alternative embodiment, the organic contaminated soil remediation system further comprises a liquid level meter 400; the measurement probe of the fluid level gauge 400 extends into the pumping well 300.
Specifically, the measuring probe of the liquid level meter 400 extends into the pumping and injection well 300, and detects the liquid level information in the pumping and injection well 300 in real time.
In an alternative embodiment, the pump-injection well 300 further comprises a drug injection tube 500; one end of the injection tube 500 is inserted into the pumping well 300.
Specifically, one end of the drug injection tube 500 extends into the pumping and injection well 300, the other end of the drug injection tube 500 is located above the ground, and the drug enters the drug injection tube 500 through the end opening of the drug injection tube 500.
In an alternative embodiment, a flow meter 600 is provided on the drug injection tube 500.
Specifically, the flow meter 600 is located above the ground, and detects the flow rate of the drug flowing through the drug injection tube 500, so that the relevant staff can know the quality of the injected drug.
In an alternative embodiment, the organic contaminated soil remediation system further comprises a steam-water separator and a wastewater collection tank; the steam-water separator is communicated with the extraction pipe 310, the steam-water separator is communicated with the wastewater collection tank, and the steam-water separator is configured to be capable of separating water vapor and organic gas in the extraction pipe 310 and conveying the water vapor to the wastewater collection tank.
Specifically, the steam-water separator separates steam from organic gas in the extraction gas, the steam enters the wastewater collection tank after being cooled and is treated in a concentrated mode at regular intervals, and the organic gas enters the tail gas adsorption device through a pipeline.
The tail gas adsorption device comprises an adsorption tank, a fan and a chimney, the effect is to reduce organic matters in the discharged tail gas through adsorption materials, the target of standard emission of the tail gas is met, and the adsorption materials are selected from activated carbon or molecular sieves.
As shown in fig. 5, the method for remedying the organic contaminated soil provided by this embodiment includes the following steps: determining the distribution mode of the microwave radiation wells according to the type of soil pollutants to be treated and the hydrogeological conditions; starting a microwave radiation device, an air suction pump, a steam-water separator and a tail gas adsorber to ensure that the temperature of the soil to be repaired is 50-75 ℃; closing a valve of the air suction pump and air suction pipe 310, a steam-water separator and a tail gas adsorber, simultaneously opening a valve of the medicine injection pump and medicine injection pipe 500, and injecting an oxidizing agent into the soil to be repaired according to the mass ratio of 0.1-2%; after the injection is finished, closing the injection pump and a valve of an injection pipe 500, keeping the radiation system running, keeping the temperature of the soil to be repaired not lower than 30 ℃, and opening a valve of an air pump and air extraction pipe 310, a steam-water separator and a tail gas adsorber; and when the temperature of the soil to be repaired is 40-50 ℃, stopping the operation of the microwave radiation device, and detecting the repaired soil.
The specific implementation case one:
firstly, in a certain polycyclic aromatic hydrocarbon polluted site, the microwave radiation wells are distributed in a regular triangle mode, the distance is 1m, and the pumping and injection wells 300 are distributed in the geometric center of the microwave radiation wells and are connected with all devices through cables and pipelines;
starting a radiation system, an extraction system, a steam-water separation system and a tail gas adsorption system until the temperature of all the soil to be treated is not lower than 75 ℃;
thirdly, closing the air pump and the pipeline valve, the steam-water separation system and the tail gas adsorption system, opening the medicine injection pump and the pipeline valve, and injecting sodium persulfate into the soil to be treated according to the mass ratio of 2%;
closing the medicine injection pump and the pipeline valve after the medicine injection is finished, continuously keeping the radiation system running until the temperature of all the soil to be treated is not lower than 30 ℃, and opening the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system;
and fifthly, continuously keeping the radiation system, the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system to operate, stopping the operation of all equipment when the temperature of all the soil to be treated is not lower than 50 ℃, and detecting results show that the degradation rate of the polycyclic aromatic hydrocarbon in the treated soil can reach 50-75%.
(2) Detailed description of the preferred embodiment
In a benzene series polluted site, the microwave radiation wells are distributed in a regular hexagon at intervals of 2m, and pumping wells 300 are distributed in the geometric center of the microwave radiation wells and are connected with equipment through cables and pipelines;
secondly, starting a radiation system, an extraction system, a steam-water separation system and a tail gas adsorption system until the temperature of all the soil to be treated is not lower than 50 ℃;
thirdly, closing the air pump and the pipeline valve, the steam-water separation system and the tail gas adsorption system, opening the medicine injection pump and the pipeline valve, and injecting sodium persulfate into the soil to be treated according to the mass ratio of 0.1%;
closing the medicine injection pump and the pipeline valve after the medicine injection is finished, continuously keeping the radiation system running until the temperature of all the soil to be treated is not lower than 30 ℃, and opening the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system;
and fifthly, continuously keeping the radiation system, the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system to operate, stopping all equipment from operating when the temperature of all the soil to be treated is not lower than 40 ℃, and detecting results show that the degradation rate of benzene series in the treated soil can reach 70-95%.
(3) Detailed description of the preferred embodiment
In a certain chlorohydrocarbon polluted site, a microwave radiation well is distributed in a regular hexagon shape at an interval of 1.5m, and a pumping and injection well 300 is distributed in the geometric center of the microwave radiation well and is connected with all devices through cables and pipelines;
secondly, starting a radiation system, an extraction system, a steam-water separation system and a tail gas adsorption system until the temperature of all the soil to be treated is not lower than 65 ℃;
thirdly, closing the air pump and the pipeline valve, the steam-water separation system and the tail gas adsorption system, opening the medicine injection pump and the pipeline valve, and injecting sodium persulfate into the soil to be treated according to the mass ratio of 1%;
closing the medicine injection pump and the pipeline valve after the medicine injection is finished, continuously keeping the radiation system running until the temperature of all the soil to be treated is not lower than 30 ℃, and opening the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system;
and fifthly, continuously keeping the radiation system, the air pump, the pipeline valve, the steam-water separation system and the tail gas adsorption system to operate, stopping all equipment from operating when the temperature of all the soil to be treated is not lower than 45 ℃, and detecting results show that the degradation rate of the chlorohydrocarbon in the treated soil can reach 60-85%.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. A microwave irradiation apparatus, comprising: a radiant tube (100) and a shield (200);
protection casing (200) cover is located the tip of radiant tube (100), protection casing (200) are provided with connecting rod (210), the one end of connecting rod (210) has rectangular hole (211), connecting rod (210) pass through rectangular hole (211) with the flange joint of radiant tube (100).
2. A microwave irradiation apparatus according to claim 1,
the top of the protection cover (200) is provided with an opening, and the side wall of the protection cover (200) is provided with heat dissipation holes (220).
3. An organically-polluted soil remediation system comprising a pumping well (300) and a microwave irradiation device as claimed in any one of claims 1 to 2;
the pumping and injecting wells (300) are arranged in a plurality, and the pumping and injecting wells (300) are arranged at equal intervals by taking the radiant tube (100) as a center.
4. The organically-polluted soil remediation system according to claim 3,
the pumping and injection well (300) comprises a pumping pipe (310);
one end of the air suction pipe (310) extends into soil to be repaired, and the other end of the air suction pipe (310) is provided with a gas sampling port (311).
5. The organically-polluted soil remediation system according to claim 4,
the air suction pipe (310) is provided with a vacuum meter (312).
6. The organically-polluted soil remediation system according to claim 4,
the organic contaminated soil remediation system further comprises a liquid level meter (400);
the measuring end of the liquid level meter (400) extends into the pumping and injection well (300).
7. The organically-polluted soil remediation system according to claim 4,
the pumping and injection well (300) further comprises a medicine injection pipe (500);
one end of the medicine injection pipe (500) extends into the pumping and injection well (300).
8. The organically-polluted soil remediation system according to claim 7,
the medicine injection pipe (500) is provided with a flow meter (600).
9. The organically-polluted soil remediation system according to claim 4,
the organic contaminated soil remediation system further comprises a steam-water separator and a wastewater collection tank;
the steam-water separator is communicated with the extraction pipe (310), the steam-water separator is communicated with the wastewater collection tank, and the steam-water separator is configured to be capable of separating steam and organic gas in the extraction pipe (310) and conveying the steam to the wastewater collection tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121616599.3U CN215696746U (en) | 2021-07-15 | 2021-07-15 | Microwave radiation device and organic contaminated soil remediation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121616599.3U CN215696746U (en) | 2021-07-15 | 2021-07-15 | Microwave radiation device and organic contaminated soil remediation system |
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| Publication Number | Publication Date |
|---|---|
| CN215696746U true CN215696746U (en) | 2022-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121616599.3U Expired - Fee Related CN215696746U (en) | 2021-07-15 | 2021-07-15 | Microwave radiation device and organic contaminated soil remediation system |
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| CN (1) | CN215696746U (en) |
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2021
- 2021-07-15 CN CN202121616599.3U patent/CN215696746U/en not_active Expired - Fee Related
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