A high-efficiency and low-consumption transmission device for treating wastewater by electron beam

Abstract

The application discloses a high-efficiency and low-consumption transmission device for treating wastewater by an electron beam, which comprises a drainage pipe, wherein the drainage pipe extends below an electron accelerator, an included angle between at least a partial pipe section of the drainage pipe and a horizontal plane is an acute angle, a bottom end of the drainage pipe is connected to an irradiation effluent pool, and a top end of the drainage pipe is higher than the irradiation effluent pool; liquid entering the drainage pipe from the top of the drainage pipe flows downward under the action of gravity, passes below the electron accelerator, flows into the irradiation effluent pool after being irradiated by an electron beam, and is treated by the electron beam. The drainage pipe of the application extends in a height direction and is inclined, sewage entering from the top of the drainage pipe flows under the action of gravity and passes below the electron accelerator, and is treated by the electron beam. The transmission device mainly relies on gravity to provide water flow power, does not need to be provided with high-power water pumps and other electric equipment, has the advantages of reducing operation cost, reducing noise, saving energy and reducing energy consumption.

Description

Technical Field

[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a high-efficiency and low-consumption electron beam transmission device for treating wastewater. Background Technology

[0002] With the continuous acceleration of industrialization and urbanization in my country, the number and scale of domestic sewage and industrial wastewater treatment plants are increasing. Research on the use of ionizing radiation to treat environmental pollutants can be traced back to the 1950s. At that time, with the development of nuclear reactors and radiation chemistry, the radiolytic decomposition characteristics of water after being exposed to high-energy rays received great attention.

[0003] Because neutrons can induce radioactivity in irradiated matter, and heavily charged particles have very limited penetrating power, ionizing radiation used in environmental protection typically consists of only two types: gamma rays and high-energy electrons. Ionizing radiation treatment of industrial wastewater offers the following advantages:

[0004] (1) The procedure was carried out at room temperature and pressure;

[0005] (2) The process is simple, efficient, low in operating costs, and produces no secondary pollution;

[0006] (3) It is especially suitable for environmental pollutants that are difficult to treat with conventional technologies.

[0007] 60 Co nuclides produce gamma rays with strong penetrating power, and radiation reactors are easy to design and manufacture. However, 60 Co has a half-life of 5.27 years and needs to be replenished continuously. 60 Cobalt-based radiation sources require heavy shielding, have low radiation treatment efficiency, and high operating costs. While electron accelerators have poorer electron beam penetration and require specially designed irradiation reactors, their concentrated and directional irradiation beams result in higher energy efficiency and greater production capacity. Furthermore, from a radiation safety and protection perspective, electron accelerators do not require thick shielding and can be immediately shut down when not in use, making them more acceptable to the general public. Therefore, using electron accelerators to treat industrial wastewater is a more worthwhile approach to promote.

[0008] In related technologies, irradiation reactors that continuously treat industrial wastewater using electron accelerators typically include a water spray assembly and an electron accelerator. Wastewater is sprayed out by the water spray assembly to form a parabolic water film. After the water film is irradiated by an electron beam emitted through a scanning window, it flows out from the discharge port. In existing technologies, forming a parabolic water film requires a high-power water pump to create a water flow channel. The use of high-power water pumps increases the cost of wastewater treatment equipment, increases energy consumption during the wastewater treatment process, resulting in high operating costs and noise levels.

[0009] In view of the above, this utility model is hereby proposed. Utility Model Content

[0010] To solve one of the above-mentioned technical problems, this utility model provides a high-efficiency and low-consumption electron beam wastewater transmission device.

[0011] The present invention adopts the following technical solution:

[0012] This application provides a high-efficiency, low-consumption electron beam wastewater treatment transmission device, comprising:

[0013] A drainage tube extends below the electron accelerator, with at least a portion of the drainage tube forming an acute angle with the horizontal plane. The bottom end of the drainage tube is connected to the irradiation outlet pool, and the top end of the drainage tube is higher than the irradiation outlet pool.

[0014] The liquid entering the drainage tube from the top flows downward under the influence of gravity, passes below the electron accelerator, is irradiated by the electron beam, and then flows into the irradiated water pool.

[0015] Optionally, the drainage tube has a flat structure, and the cross-section of the drainage channel of the drainage tube is rectangular;

[0016] The electron accelerator is located on one side of the drainage tube along its thickness direction.

[0017] Optionally, the drainage tube includes a first extension and a second extension;

[0018] The angle between the first extension segment and the horizontal plane is smaller than the angle between the second extension segment and the horizontal plane;

[0019] The second extension extends through the irradiation end of the electron accelerator and is connected to the irradiation outlet pool.

[0020] The first extension segment is higher than the second extension segment, and the bottom end of the first extension segment is connected to the top end of the second extension segment.

[0021] Optionally, the transmission device includes a water film adjustment mechanism;

[0022] The water film adjustment mechanism is located on the drainage pipe upstream of the electron accelerator;

[0023] The water film adjustment mechanism is located within the drainage channel of the drainage pipe. The water film adjustment mechanism can adjust the cross-sectional area of ​​the drainage channel at the corresponding part of the drainage pipe to adjust the thickness of the water film.

[0024] Optionally, the water film adjustment mechanism includes a coarse adjustment mechanism;

[0025] The coarse adjustment mechanism is slidably inserted into the drainage tube, and part of the coarse adjustment mechanism is located inside the drainage channel;

[0026] The coarse adjustment mechanism can move along the thickness direction of the drainage tube to adjust the cross-sectional area of ​​the drainage channel at the corresponding position.

[0027] Optionally, the water film adjustment mechanism includes a fine-tuning mechanism;

[0028] The fine-tuning mechanism includes a water distribution plate and an adjustment assembly;

[0029] The water distribution plate is movably disposed on the drainage pipe, and the water distribution plate is at least partially disposed within the drainage channel;

[0030] The adjusting component and the water distribution plate are connected by a transmission. The adjusting component can drive the water distribution plate to rotate, so as to adjust the cross-sectional area of ​​the drainage channel at the corresponding position.

[0031] Optionally, the drainage tube includes a top plate, a bottom plate, and side baffles located on both sides of the top plate and the bottom plate;

[0032] The top plate, bottom plate, and side baffles enclose and form the drainage channel;

[0033] The first side of the water distribution plate is hinged to the top plate, and the second side of the water distribution plate extends toward the bottom plate;

[0034] The adjustment component can drive the water distribution plate to rotate, adjusting the gap between the second side of the water distribution plate and the base plate.

[0035] Optionally, the drainage tube is provided with a connecting port for a drainage channel that connects to the interior;

[0036] A secondary titanium membrane is connected to the drainage tube and covers the communication port;

[0037] The secondary titanium film is located within the irradiation range of the electron accelerator.

[0038] Optionally, the section of the drain tube near the electron accelerator is provided with a cooling chamber, and the cooling chamber is used to introduce a heat exchange medium.

[0039] By adopting the above technical solution, this utility model has the following beneficial effects:

[0040] The drainage pipe of this application extends at an inclination along the height direction. The sewage entering from the top of the drainage pipe will flow under the action of gravity and pass under the electron accelerator. After being treated by electron beam irradiation, the transmission device of this application mainly relies on gravity to provide water flow power. There is no need to set up high-power water pumps and other electrical equipment, which has the advantages of reducing operating costs, reducing noise, and saving energy consumption.

[0041] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0042] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments and descriptions of the present invention are used to explain the present invention, but do not constitute an undue limitation of the present invention. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0043] Figure 1 A schematic diagram of the cooperative structure of the transmission device and the electron accelerator provided in an embodiment of this application is shown;

[0044] Figure 2 Show Figure 1 Enlarged view of section A.

[0045] In the diagram: 1. Electron accelerator; 2. Titanium window; 3. Irradiation outlet pool; 31. Drainage pipe; 4. Drainage pipe; 41. First extension section; 42. Second extension section; 5. Inlet pool; 6. Coarse adjustment mechanism; 7. Fine adjustment mechanism; 71. Water distribution plate; 72. Adjustment component; 721. Telescopic component; 722. Lifting rod; 723. Transmission rod; 8. Secondary titanium membrane; 9. Shielding body; 91. Support; 10. Electron beam.

[0046] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0048] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0049] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0050] like Figure 1 and Figure 2 As shown in the figure, this application embodiment provides a high-efficiency and low-consumption electron beam treatment wastewater transmission device, including a diversion pipe 4. The diversion pipe 4 extends below an electron accelerator 1. At least a portion of the diversion pipe 4 forms an acute angle with the horizontal plane. The bottom end of the diversion pipe 4 is connected to an irradiation outlet pool 3. The irradiation outlet pool 3 can be positioned below the electron accelerator, and the top end of the diversion pipe 4 is above the irradiation outlet pool 3. Liquid entering the diversion pipe 4 from the top of the diversion pipe 4 flows downward under the action of gravity, passes below the electron accelerator 1, is irradiated by the electron beam, and then flows into the irradiation outlet pool.

[0051] Electron accelerator components can emit ionizing radiation, which (gamma rays and electron beam 10) is a type of radiation that carries sufficient energy to free electrons in atoms or molecules. Ionizing radiation is characterized by short wavelength, high frequency, and high energy, and can generate highly reactive particles or free radicals in any phase (solid, liquid, gas) and at any temperature. Based on this principle, electron beam 10 irradiation can efficiently degrade organic pollutants in wastewater.

[0052] The technical principle of this invention is as follows: An electron beam 10 generated by an electron accelerator 1 acts on matter, representing a unique advanced oxidation-reduction technology. Its working principle includes the direct radiation effect of the high-energy electron beam 10, and the excitation of water molecules by the electron beam 10 to generate hydroxyl radicals (•OH) and hydrated electrons (electrons). aq - The oxidation-reduction reaction of reactive particles such as hydrogen atoms (H•) and H2O2. When exposed to radiation, the system exhibits both chemical effects (such as degradation and mineralization of organic pollutants) and biological effects (such as disinfection and sterilization), achieving the simultaneous removal of organic matter and elimination of microorganisms. The reaction formula is as follows:

[0053] ,

[0054] It should be noted that the value in parentheses is the yield (G value) of the corresponding particles, which represents the number of such particles generated for every 100 eV of energy absorbed.

[0055] Compared with traditional advanced oxidation technologies, electron beam irradiation has advantages such as faster reaction rate, less likelihood of secondary pollution, and wider applicability to various water qualities due to the presence of more active particles, more complex oxidation-reduction processes, richer reaction effects, and more diverse process combinations in the electron beam irradiation system. It can also effectively improve biodegradability and treat wastewater more efficiently and at a lower cost.

[0056] During the operation of the transmission device, the electron accelerator 1 can irradiate the flowing sewage to achieve the purpose of efficiently degrading organic pollutants in the wastewater. The diversion pipe 4 of this application extends inclined along the height direction. The sewage entering from the top of the diversion pipe 4 will flow under the action of gravity and flow below the electron accelerator. After being irradiated by the electron beam, the transmission device of this application mainly relies on gravity to provide water flow power. It does not require the installation of high-power water pumps and other electrical equipment, which has the advantages of reducing operating costs, reducing noise, and saving energy consumption.

[0057] The inlet pool 5 is located at the top of the diversion pipe 4, and the wastewater entering the inlet pool 5 flows downward along the diversion pipe 4. Wastewater treatment equipment (such as transmission devices, electron accelerators, and shielding structures) can be at least partially located underground, thereby reducing the height of the inlet pool 5 and making it easier for wastewater to be discharged into or lifted into the inlet pool 5. A solenoid valve 411 can be installed on the side of the diversion pipe 4 near the inlet pool 5 to control the opening and closing of the diversion pipe 4. Wastewater can be pumped into the inlet pool 5 through a pumping pipe equipped with a pump that only needs to meet the required head to lift the water to the inlet pool 5; excessively high water flow velocity is not required. Therefore, the pump on the pumping pipe is a low-power pump, with lower power and energy consumption compared to existing pumps that require spraying water to form a parabolic water film.

[0058] In some possible implementations, the drainage tube 4 can be a flat structure with a rectangular cross-section for its drainage channel, and the electron accelerator is located on one side of the drainage tube 4 along its thickness direction. By setting the drainage tube 4 to a flat structure and having a thinner drainage channel, it is beneficial to form a thin water film with a certain flow rate, which is convenient for electron beam irradiation treatment.

[0059] In some possible implementations, the drainage pipe 4 includes a first extension 41 and a second extension 42. The angle between the first extension 41 and the horizontal plane is greater than the angle between the second extension 42 and the horizontal plane (acute angle). The second extension 42 extends past the irradiation end of the electron accelerator, with an angle of 20° to 30° between the second extension and the horizontal plane. The second extension 42 is connected to the irradiated water outlet pool 3. The first extension 41 is higher than the second extension 42, and the bottom end of the first extension is connected to the top end of the second extension 42. By setting the second extension 42 with a relatively small inclination angle downstream of the first extension 41, the water film flow velocity can be appropriately reduced, and the contact area between the water film and the electron beam 10 released below the electron accelerator can be increased, thereby improving the effect of degrading organic pollutants in wastewater.

[0060] In some possible implementations, the electron accelerator 1 includes an electron accelerator body and a titanium window 2 disposed on the electron accelerator body, through which the electron beam 10 is released. The distance difference between the inlet pool 5 and the titanium window 2 can be 6m to 10m, which can ensure that the water flow velocity can reach 5 to 10m / s when flowing through the titanium window 2 under the action of gravity, so that the electron beam 10 can act on the water film sufficiently and effectively.

[0061] In some possible implementations, the transmission device includes a water film adjustment mechanism disposed on the drainage pipe 4 upstream of the electron accelerator 1. The water film adjustment mechanism is partially located within the drainage channel of the drainage pipe 4. This mechanism can adjust the cross-sectional area of ​​the drainage channel at a corresponding location in the drainage pipe 4 to adjust the thickness of the water film formed by the sewage flow. By partially configuring the water film adjustment mechanism, the cross-sectional area of ​​the drainage channel can be reduced, such as by reducing the thickness (or height) of the drainage channel, thus reducing the sewage flow rate. However, this increases the water flow velocity, reduces the cross-sectional area of ​​the water flow, and decreases the thickness of the water film formed by the sewage, thereby adapting to the irradiation penetration thickness of the electron accelerator 1.

[0062] In some embodiments of this application, by setting a water film adjustment mechanism, the water film thickness can reach 2 to 10 mm when the wastewater flows through the titanium window 2, so that the electron beam 10 can fully act on the water film.

[0063] The distance between the drainage tube 4, located within the irradiation area of ​​the electron accelerator 1, and the titanium window 2 is 80mm to 120mm. This reduces the ionization, excitation, and inelastic collisions between the electron beam 10 and the air, thereby reducing the energy loss of the electron beam 10.

[0064] It should be noted that the term "irradiation area of ​​electron accelerator 1" in the text can be understood as the spatial range of electron beam irradiation below electron accelerator 1.

[0065] In this embodiment, the electron beam 10 of the electron accelerator component has an energy of 0.5 MeV to 3.0 MeV and a beam current intensity of 50 to 200 mA, which can effectively treat water films with a thickness of 2 to 10 mm and a flow rate of 5 to 10 m / s.

[0066] In some embodiments of this application, the water film adjustment mechanism includes a coarse adjustment mechanism 6, which is slidably inserted into the drainage pipe 4. The coarse adjustment mechanism 6 is partially located inside the drainage channel and can move along the thickness direction of the drainage pipe 4 to adjust the cross-sectional area of ​​the drainage channel at a corresponding position. The coarse adjustment mechanism 6 can be a baffle. A slot can be provided on the drainage pipe 4, connecting to the internal drainage channel. The baffle can be slidably inserted into the slot, with one side of the baffle located inside the drainage channel of the drainage pipe 4 and the other end located outside the drainage channel. By moving the baffle, it can be inserted into or withdrawn from the drainage channel, thereby adjusting the cross-section of the drainage channel. The baffle and the inner wall of the slot are sealed together to prevent leakage. For example, an elastic layer can be provided on the outside of the baffle, which can seal the slot by adhering tightly to the inner wall of the slot.

[0067] In some possible implementations, the water film adjustment mechanism includes a fine-tuning mechanism 7, which includes a water distribution plate 71 and an adjustment component 72. The water distribution plate 71 is movably disposed in the drainage pipe 4 and is at least partially disposed in the drainage channel. The adjustment component 72 is drivenly connected to the water distribution plate 71, and the adjustment component 72 can drive the water distribution plate 71 to rotate in order to adjust the cross-sectional area of ​​the drainage channel at the corresponding position.

[0068] Optionally, the drainage pipe 4 includes a top plate, a bottom plate, and side baffles located on both sides of the top and bottom plates, which together form the drainage channel. The entire drainage pipe 4 forms a flat structure. The water film flows along the bottom plate. The first side of the water distribution plate 71 can be hinged to the top plate or other structures outside the top plate, such as the bracket 91. The second side of the water distribution plate 71 extends towards the bottom plate. The adjusting component 72 can drive the water distribution plate 71 to rotate, adjusting the gap between the second side of the water distribution plate 71 and the bottom plate. It should be noted that... Figure 2 The position indicated by the dashed line represents the structure located inside the drainage tube 4, which is a perspective structure.

[0069] It should be noted that a hinge seat can be installed on the top plate, and the water distribution plate 71 is hinged to the hinge seat. The hinge seat can be located on the inner or outer side of the top plate. Taking the hinge seat located on the outer side of the top plate as an example, the hinge seat is located on the side of the top plate away from the bottom plate. The water distribution plate 71 is a rectangular plate with a width consistent with the width of the drainage pipe 4. A clearance groove can be provided along the width direction on the top plate of the drainage pipe 4, that is, a break area is formed in the top plate at the clearance groove. The water distribution plate 71 can be installed through the clearance groove, and the width of the clearance groove is greater than that of the water distribution plate 71, so that the water distribution plate 71 can rotate around the hinge seat within a certain range. A flexible sealing sleeve can be provided between the water distribution plate 71 and the drainage pipe 4 (such as the outer wall of the drainage pipe 4) to seal the clearance groove. Alternatively, a portion of the top plate can be configured as a flexible section with clearance grooves. The water distribution plate 71 can pass through these clearance grooves, and its top end is hinged to a hinged seat on another structure outside the drainage pipe 4 (such as a bracket 91 for supporting the drainage pipe 4). When the water distribution plate 71 rotates, the flexible section deforms accordingly. The clearance grooves of the flexible section and the water distribution plate 71 maintain a tight fit, preventing water leakage. The flexible section can be a structural section made of materials such as silicone or rubber.

[0070] The adjusting assembly 72 may include a linkage assembly connected to the water distribution plate 71 to drive the water distribution plate 71 to rotate. For example, the linkage assembly of the adjusting assembly 72 may include a telescopic member 721 and a lifting rod 722. One end of the water distribution plate 71 extending out of the drainage pipe 4 is hinged to a hinge seat located outside the drainage pipe 4. The water distribution plate 71 is also fixedly connected to a transmission rod 723, which is fixedly connected to the water distribution plate 71 at an angle. The end of the lifting rod 722 is hinged to the side of the transmission rod 723 facing away from the water distribution plate 71. The telescopic member 721 can drive the lifting rod 722 to move up and down, and the bottom end of the lifting rod 722 drives the transmission rod 723 and the water distribution plate 71 to rotate around the hinge seat.

[0071] In some possible implementations, the drainage pipe 4 is provided with a connecting port that connects to the internal drainage channel. A secondary titanium membrane 8 is connected to the drainage pipe 4 and covers the connecting port. The secondary titanium membrane 8 is located within the irradiation range of the electron accelerator. The secondary titanium membrane 8 allows the electron beam 10 to pass through, but it also blocks water, preventing wastewater from draining from the drainage channel through the connecting port. The electron beam 10 emitted by the electron accelerator assembly can penetrate the secondary titanium membrane 8 and enter the interior of the drainage pipe 4 to contact the flowing water film.

[0072] The drainage tube 4 provided in this embodiment can be located in the irradiation area of ​​the electron accelerator assembly. A horizontal top wall can be provided on the top of the tube, and a communication port can be provided on the horizontal top wall. The secondary titanium film 8 can be set on the horizontal top wall, that is, the secondary titanium film 8 can be set horizontally, while the electron accelerator assembly is perpendicular to the secondary titanium film 8, so that the electron beam 10 released from the bottom of the electron accelerator assembly will contact the water film inside the drainage tube 4 through the secondary titanium film 8.

[0073] In some possible implementations, a cooling chamber is provided on the section of the drain pipe 4 near the electron accelerator, and the cooling chamber is used to circulate a heat exchange medium. The cooling chamber is isolated from the drain channel and is not connected to the aforementioned connection port. A coolant inlet and a coolant outlet can be provided on the drain pipe 4, both of which are connected to the cooling chamber. External coolant can enter the cooling chamber through the coolant inlet for heat exchange and then be discharged through the coolant outlet. The transmission device also includes a water tank and a circulating water pump. The water tank is connected to the coolant inlet and coolant outlet through inlet and return water pipes, respectively. The circulating water pump can be installed on either the inlet or return water pipe. The circulating water pump provides the power for cooling water circulation.

[0074] The electron beam 10 released by the electron accelerator assembly has a high heat content, which will cause the temperature of the section of the drain tube 4 located in the irradiation area to be too high. This application provides a cooling chamber for at least part of the section of the drain tube 4 located in the irradiation area, which can be cooled by external coolant, thus avoiding severe deformation caused by local heating of the drain tube 4.

[0075] It should be noted that the cooling chamber can be a sandwich structure set within the drainage pipe 4, and the cooling chamber is located on the side of the drainage channel closer to the electron accelerator 1. The cooling chamber is located on the periphery of the connecting port, or the secondary titanium film 8.

[0076] In some possible implementations, the bottom of the irradiation pool 3 is connected to a drain pipe 31, which facilitates the discharge of treated wastewater.

[0077] In some possible implementations, in this application, structures such as the transmission device and electron accelerator are housed within a shield 9, which has a cavity, and the transmission device and electron accelerator are at least partially housed within the cavity. The inlet pool 5 can be located on the outer top of the shield 9 to facilitate wastewater entry. A bracket 91 is mounted on the shield 9 to support and fix the drainage pipe 4.

[0078] On the other hand, embodiments of this application provide a highly efficient and low-consumption electron beam method for treating wastewater, applied to the aforementioned transmission device, including...

[0079] Step S1: Control the wastewater to enter the diversion pipe 4 from the top of the inclined extension diversion pipe 4;

[0080] The transmission device of this application can be located at least partially underground. When the industrial wastewater discharge point is higher than the inlet pool 5 at the top of the diversion pipe 4, it can be directly discharged into the inlet pool 5 via a pipeline. When the industrial wastewater discharge point is lower than the inlet pool 5, the wastewater can be pumped into the inlet pool 5 using a water pump. This water pump does not require a high-power pump and has low energy consumption.

[0081] Step S2: Under the influence of gravity, the wastewater flows downward, passes under the electron accelerator, is irradiated by the electron beam 10, and then flows into the irradiated water outlet pool 3. After the water quality meets the standards, it can be discharged through the drain pipe 31 on the irradiated water outlet pool 3.

[0082] The following are specific embodiments of a wastewater treatment method using the transmission device of this application:

[0083] Example 1

[0084] The dyeing and printing wastewater was taken from the effluent of the secondary sedimentation tank of a sewage treatment plant in Guangdong Province. Electron accelerator 1 was a 2 MeV, 50 mA electron accelerator.

[0085] 1000m 3 The aforementioned wastewater, after passing through the inlet pool 5 and entering the first extension section 41 of the diversion pipe 4, is accelerated and then enters the second extension section 42, entering the irradiation range of the electron accelerator 1. It is then irradiated by the electron beam 10, with a water film thickness of 6-8 mm, a water flow velocity of 5-7 m / s, and an absorbed dose of 1-3 kGy. The distance between the structural section of the second extension section 42 within the irradiation area and the titanium window 2 of the electron accelerator assembly is 90 mm. After being irradiated by the electron beam 10, the wastewater passes through the irradiation outlet pool 3 and the drain pipe 31, and is discharged in compliance with standards.

[0086] Example 2

[0087] The landfill leachate (wastewater) was taken from the effluent of the membrane bioreactor (MBR) wastewater treatment plant at a landfill in Sichuan Province. The radiation source in electron accelerator 12 is an electron accelerator 1 with a capacity of 0.5 MeV and 90 mA.

[0088] The wastewater, at a rate of 500 m³ / d, enters the first extension section 41 of the inlet pipe 4 after passing through the inlet pool 5. After acceleration, it enters the second extension section 42 and then the irradiation range of the electron accelerator 1, where it is irradiated by the electron beam 10. The water film thickness is 1.5-2.5 mm, the water flow velocity is 4-6 m / s, and the absorbed dose is 5-10 kGy. The irradiated wastewater then passes through the irradiation outlet pool 3 and the drain pipe 31 before being discharged in compliance with standards.

[0089] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A high efficiency and low consumption electron beam processing wastewater conveying device, characterized in that, include: A drainage tube extends below the electron accelerator, with at least a portion of the drainage tube forming an acute angle with the horizontal plane. The bottom end of the drainage tube is connected to the irradiation outlet pool, and the top end of the drainage tube is higher than the irradiation outlet pool. The liquid entering the drainage tube from the top flows downward under the influence of gravity, passes below the electron accelerator, is irradiated by the electron beam, and then flows into the irradiated water pool.

2. The transmission device according to claim 1, characterized in that, The drainage tube has a flat structure, and the cross-section of the drainage channel of the drainage tube is rectangular; The electron accelerator is located on one side of the drainage tube along its thickness direction.

3. The transmission device according to claim 1, characterized in that, The drainage tube includes a first extension section and a second extension section; The angle between the second extension segment and the horizontal plane is 20° to 30°, and the angle between the first extension segment and the horizontal plane is greater than the angle between the second extension segment and the horizontal plane. The second extension extends below the electron accelerator, and the bottom end of the second extension is connected to the irradiated water pool. The first extension segment is higher than the second extension segment, and the bottom end of the first extension segment is connected to the top end of the second extension segment.

4. The transmission device according to claim 1, characterized in that, Including a water film adjustment mechanism; The water film adjustment mechanism is located on the drainage pipe upstream of the electron accelerator; The water film adjustment mechanism is located within the drainage channel of the drainage pipe. The water film adjustment mechanism can adjust the cross-sectional area of ​​the drainage channel at the corresponding part of the drainage pipe to adjust the thickness of the water film.

5. The transmission device according to claim 4, characterized in that, The water film adjustment mechanism includes a coarse adjustment mechanism; The coarse adjustment mechanism is slidably inserted into the drainage tube, and part of the coarse adjustment mechanism is located inside the drainage channel; The coarse adjustment mechanism can move along the thickness direction of the drainage tube to adjust the cross-sectional area of ​​the drainage channel at the corresponding position.

6. The transmission device according to claim 5, characterized in that, The water film adjustment mechanism includes a fine-tuning mechanism; The fine-tuning mechanism includes a water distribution plate and an adjustment assembly; The water distribution plate is movably disposed on the drainage pipe, and the water distribution plate is at least partially disposed within the drainage channel; The adjusting component and the water distribution plate are connected by a transmission. The adjusting component can drive the water distribution plate to rotate, so as to adjust the cross-sectional area of ​​the drainage channel at the corresponding position.

7. The transmission device according to claim 6, characterized in that, The drainage tube includes a top plate, a bottom plate, and side baffles located on both sides of the top plate and the bottom plate; The top plate, bottom plate, and side baffles enclose and form the drainage channel; The first side of the water distribution plate is hinged to the top plate, and the second side of the water distribution plate extends toward the bottom plate; The adjustment component can drive the water distribution plate to rotate, adjusting the gap between the second side of the water distribution plate and the base plate.

8. The transmission device according to claim 1, characterized in that, The drainage tube is provided with a connecting port that connects to the internal drainage channel; A secondary titanium membrane is connected to the drainage tube and covers the communication port; The secondary titanium film is located within the irradiation range of the electron accelerator.

9. The transmission device according to any one of claims 1-8, characterized in that, The section of the drain pipe near the electron accelerator is provided with a cooling chamber, which is used to introduce a heat exchange medium.

Images