A leachate treatment station for a domestic waste incineration power plant

Abstract

The application discloses a kind of leachate treatment stations for domestic waste incineration power plant, it is related to the field of waste treatment, it includes collection module, the collection module includes collection pool;Ultraviolet treatment module, the ultraviolet treatment module includes pump body, conveying pipe and ultraviolet lamp, the outlet of the collection pool is communicated with the inlet of pump body, the outlet of pump body is communicated with the inlet of conveying pipe, the conveying pipe is transparent, the ultraviolet lamp is arranged on conveying pipe, the ultraviolet lamp extends along the length direction of conveying pipe;And, membrane treatment module, the outlet of conveying pipe is communicated with the inlet of membrane treatment module, the beneficial effects of the present application are: when leachate flows in transparent conveying pipe, the ultraviolet lamp that extends along the length direction of conveying pipe is opened simultaneously and emits ultraviolet, to further realize the killing and inhibition of microorganism in leachate, reach the purpose of preliminary purification leachate, realize the ultraviolet treatment of leachate in the process of leachate flow delivery, reduce the floor area, improve processing efficiency.

Description

Technical Field

[0001] This invention relates to the field of waste treatment, and in particular to a leachate treatment station for municipal solid waste incineration power plants. Background Technology

[0002] Landfill leachate refers to a high-concentration wastewater formed from the moisture contained in the landfill itself, rainwater and snowmelt entering the landfill, and other water sources, after deducting the saturated water-holding capacity of the landfill and the topsoil layer, and passing through the landfill and topsoil layers. The quality of landfill leachate is quite complex, generally containing high concentrations of organic matter, heavy metal salts, suspended solids (SS), and ammonia nitrogen. Landfill leachate not only pollutes the soil and surface water sources but also pollutes groundwater. Conventional treatment methods include biological treatment, membrane treatment, and ion exchange.

[0003] In related technologies, a leachate treatment system and method for waste incineration power plants are proposed, including a leachate collection module, an ultraviolet pretreatment module, and an NBR membrane treatment module. The output end of the leachate collection module is connected to the ultraviolet pretreatment module, and the output end of the ultraviolet pretreatment module is connected to the NBR membrane treatment module. The ultraviolet pretreatment module includes a boring body, a first ultraviolet light module, and a second ultraviolet light module. The first ultraviolet light module is rotatably mounted on the tank body, and the rotation axis of the first ultraviolet light module is set along the height direction of the tank body. There are two sets of second ultraviolet light modules, which are set on both sides of the tank body. Both sets of second ultraviolet light modules can be slidably fitted into the tank body.

[0004] The aforementioned technologies have the following drawbacks: ultraviolet treatment of leachate inside a tank not only requires a large area, but also results in a large accumulation of leachate inside the tank. The limited transmittance of ultraviolet light leads to incomplete treatment, which is time-consuming and labor-intensive. Summary of the Invention

[0005] To improve the effectiveness of ultraviolet treatment and reduce the area occupied, this invention provides a leachate treatment station for municipal solid waste incineration power plants.

[0006] The present invention provides a leachate treatment station for municipal solid waste incineration power plants, which adopts the following technical solution:

[0007] A leachate treatment station for a municipal solid waste incineration power plant includes a collection module, wherein the collection module includes a collection pool;

[0008] An ultraviolet (UV) treatment module includes a pump body, a delivery pipe, and UV lamps. The outlet of the collection tank is connected to the inlet of the pump body, and the outlet of the pump body is connected to the inlet of the delivery pipe. The delivery pipe is transparent, and the UV lamps are mounted on the delivery pipe and extend along the length of the delivery pipe.

[0009] The membrane treatment module has its outlet connected to the inlet of the delivery pipe.

[0010] By adopting the above technical solution, the collection tank, as the core part of the collection module, mainly functions to collect leachate generated from municipal solid waste incineration power plants, providing a centralized source for subsequent leachate treatment. This ensures that all leachate requiring treatment can be effectively collected. The pump starts working, using its own suction capacity to draw the leachate from the collection tank outlet to the pump inlet. Then, through the pump's pressurization, the leachate is pushed from the pump outlet to the inlet of the delivery pipe, allowing it to flow along the delivery pipe under pressure. As the leachate flows in the transparent delivery pipe, ultraviolet lamps extending along the length of the pipe simultaneously turn on and emit ultraviolet light, thereby killing and inhibiting microorganisms in the leachate, achieving preliminary purification. The leachate treated by the ultraviolet treatment module flows out from the delivery pipe outlet and then enters the membrane treatment module inlet, thus achieving fine treatment of the leachate to obtain treated water that meets emission standards or reuse requirements.

[0011] Preferably, a reflector is sleeved on the conveying pipe, the reflector extends along the length of the conveying pipe, and the reflector and the conveying pipe are in a hollow state. The ultraviolet lamp is located between the conveying pipe and the reflector, and the ultraviolet lamp is disposed on the reflector. The reflector is used to concentrate the ultraviolet rays generated by the ultraviolet lamp into the conveying pipe.

[0012] By adopting the above technical solution, the ultraviolet lamp is installed on the reflector and located in the hollow area between the conveying pipe and the reflector. When the ultraviolet lamp is powered on, it emits ultraviolet rays in all directions. Due to its special position, the ultraviolet rays radiate in multiple directions, including the conveying pipe and the reflector. Since the reflector extends along the length of the conveying pipe and surrounds the conveying pipe and the ultraviolet lamp, most of the ultraviolet rays emitted from the ultraviolet lamp and directed towards the reflector are reflected back into the conveying pipe. This concentrates more of the ultraviolet rays that were originally scattered in all directions into the inner area of ​​the conveying pipe, increasing the intensity and density of ultraviolet rays within the conveying pipe. During the leachate treatment process, as the leachate flows in the conveying pipe, the increased intensity and density of ultraviolet rays within the conveying pipe allow microorganisms, organic matter, and other pollutants in the leachate to receive more full ultraviolet irradiation, enhancing the treatment effect of the leachate and improving treatment efficiency and purification level.

[0013] Preferably, the reflector is provided with a blower assembly for heat dissipation and cleaning of the ultraviolet lamp tube. The blower assembly includes a fan. A flow guide cavity is formed between the reflector and the conveying pipe. An air inlet and an air outlet are respectively provided at both ends of the flow guide cavity. The outlet of the fan is connected to the air inlet.

[0014] By adopting the above technical solution, after the fan starts, under the action of atmospheric pressure, outside air is continuously drawn into the fan inlet. Since the fan outlet is connected to the air inlet of the guide cavity formed between the reflector and the conveying pipe, the pressurized air flows into the air inlet along the connecting pipe and enters the guide cavity. Under the action of pressure difference, the air entering the guide cavity flows from the air inlet to the air outlet along the guide cavity. During the flow, the air will come into full contact with the ultraviolet lamp. The ultraviolet lamp generates heat when it is working, and the heat will be dissipated into the surrounding environment. When the air flows through the ultraviolet lamp, the air will absorb the heat from the surface of the ultraviolet lamp, thereby reducing the temperature of the ultraviolet lamp. The reduced temperature helps dissipate heat, preventing damage to the UV lamps from overheating and extending their lifespan. It also ensures the UV lamps operate in a relatively stable temperature environment, maintaining their normal luminous efficiency and sterilization performance. The airflow carries away dust and other impurities from the guide cavity, cleaning any dust or contaminants that may be attached to the UV lamp surface. This keeps the UV lamp surface clean, ensuring that UV light is emitted smoothly without being blocked or absorbed by dust or other impurities, thus guaranteeing that the treatment effect on the leachate in the delivery pipe is not affected.

[0015] Preferably, the air inlet is equipped with a filter screen.

[0016] By adopting the above technical solution, the outside air often contains dust, lint, small particulate impurities, etc. The filter can effectively block these impurities outside the air inlet, preventing them from entering the guide cavity formed between the reflector and the delivery pipe with the air. Without the filter, once these impurities enter the guide cavity, they may adhere to the surface of the ultraviolet lamp tube, affecting the ultraviolet emission effect, or they may accumulate in the guide cavity, affecting the normal air flow, and thus interfering with the blower assembly's heat dissipation and cleaning function for the ultraviolet lamp tube.

[0017] Preferably, an impeller is rotatably connected to the filter screen, and a brush is coaxially mounted on the impeller, with the brush abutting against the outer side of the filter screen.

[0018] By adopting the above technical solution, when the blower assembly is working, the fan draws in outside air and delivers it to the air inlet. As the air passes through the filter and enters the air inlet, a pressure difference is created on both sides of the filter due to the filter's obstruction. This pressure difference causes the air to attempt to pass through the filter's mesh at a faster speed. The impeller is mounted on the filter, and the airflow impact force generated when the air passes through the filter, along with the driving force created by the pressure difference, acts on the impeller, causing it to rotate around its own axis. As the impeller continues to rotate under the influence of the air pressure difference and the airflow impact force... Because the brush and impeller are coaxially mounted, the rotational power of the impeller is directly transmitted to the brush, causing the brush to rotate synchronously with the impeller. During rotation, the bristles of the brush continuously contact and rub against the outer surface of the filter screen. As the brush presses against the filter screen, this contact effectively removes dust, lint, and other impurities that may be attached to the outer surface of the filter screen. Once these impurities are removed by the brush, they will be carried away from the vicinity of the filter screen by airflow, thus keeping the filter screen surface clean and preventing impurities from accumulating on the filter screen and affecting its filtration effect.

[0019] Preferably, a dustproof plate is rotatably connected to the air outlet, and a torsion spring is provided between the dustproof plate and the air outlet. One end of the torsion spring is connected to the dustproof plate, and the other end of the torsion spring is connected to the air outlet. The torsion spring causes the dustproof plate to rotate towards the air outlet, and the torsion force of the torsion spring is less than the wind force generated by the fan.

[0020] By adopting the above technical solution, the dustproof plate is rotatably connected to the air outlet via a torsion spring. When the blower assembly is not working, the dustproof plate tends to rotate towards the air outlet due to the action of the torsion spring, thus blocking the air outlet. This prevents external dust and debris from entering the air guide cavity through the air outlet when the equipment is not running, thereby protecting the internal ultraviolet lamps and airflow channels. When the fan starts working, the airflow generated by the fan flows towards the air outlet through the air guide cavity. Since the airflow generated by the fan is greater than the torsion force of the torsion spring, the airflow acts on the dustproof plate, overcoming the torsion force of the torsion spring, causing the dustproof plate to rotate away from the air outlet, thereby opening the air outlet. Air can smoothly exit from the guide cavity through the air outlet to the outside. During continuous operation of the fan, the continuous airflow keeps the dust cover open. Air flows within the guide cavity, completing the heat dissipation and cleaning of the ultraviolet lamps before exiting through the air outlet. The dust cover remains stably open under the action of the airflow, without affecting the normal exhaust of air. When the fan stops working, the airflow disappears, and the torsion spring begins to function. Due to the torsion spring, the dust cover tends to rotate towards the air outlet. Under the action of the torsion spring's torsion force, the dust cover rotates again, returning to its initial state of blocking the air outlet, preventing external dust and other impurities from entering the guide cavity until the next fan startup.

[0021] Preferably, a uniform fan is rotatably connected inside the flow guide cavity, and the uniform fan faces the air inlet.

[0022] By adopting the above technical solution, when the fan blows air into the guide cavity through the air inlet, the initial airflow may be relatively turbulent, with uneven speed and pressure distribution. The rotation of the fan can stir and guide the air entering the guide cavity, making the air form a more uniform and stable airflow distribution within the guide cavity. This ensures that when the air flows through the ultraviolet lamp tube, all parts of the lamp tube can receive uniform airflow, achieving a more balanced heat dissipation effect, avoiding overheating of the lamp tube due to local airflow obstruction, and extending the overall service life of the ultraviolet lamp tube.

[0023] Preferably, the ultraviolet treatment module further includes a diversion pipe, which includes an upper pipe and a lower pipe. The outlet of the delivery pipe is connected to the inlet of both the upper and lower pipes. The outlet of the upper pipe is connected to the inlet of the membrane treatment module, and the outlet of the lower pipe is connected to the inlet of the collection tank. The upper pipe is used to deliver the supernatant, and the lower pipe is used to return the precipitate to the collection tank.

[0024] By adopting the above technical solution, when the leachate passes through the delivery pipe in the ultraviolet treatment module, some substances in the leachate will undergo a certain degree of aggregation, precipitation, or stratification under ultraviolet irradiation and possible physicochemical effects. Some larger particles of impurities and heavier precipitates will gradually settle to the bottom of the delivery pipe, while the relatively lighter and clearer supernatant will be located at the top. When the leachate reaches the outlet of the delivery pipe and enters the diversion pipe, due to the special layout and connection of the upper and lower pipes, diversion will naturally occur based on gravity and the flow characteristics of the liquid itself. The relatively clear supernatant located at the top of the delivery pipe will preferentially flow into the upper pipe under the influence of gravity and the direction of liquid flow and pressure distribution at the outlet of the delivery pipe. The precipitates located at the bottom of the delivery pipe, due to their weight and proximity to the inlet of the lower pipe, will flow into the lower pipe under the influence of gravity. Through this working principle of the diversion pipe, the initial separation and reasonable diversion of the leachate after ultraviolet treatment are achieved, improving the treatment efficiency of the entire leachate treatment station and the operational stability of the membrane treatment module.

[0025] Preferably, an adjusting plate is rotatably connected to the inlet of the upper pipe and the lower pipe, and a driving assembly is provided on the conveying pipe. The driving assembly is used to drive the adjusting plate to rotate, thereby adjusting the opening size of the upper pipe and the lower pipe.

[0026] By adopting the above technical solution, the regulating plate is located at the inlet of the upper and lower pipes and is rotatably connected to them. This rotational movement can change the opening size of the inlet of the upper and lower pipes. The drive assembly is installed on the conveying pipe, and its main purpose is to provide power to the regulating plate so that the regulating plate can rotate. The initial state of the regulating plate is at a certain angle to the inlet of the upper and lower pipes, so that the inlet has an initial opening size. When the drive assembly drives the regulating plate to rotate in one direction, the regulating plate will gradually block the inlet of the upper and lower pipes, thus making the opening smaller. Conversely, when the drive assembly drives the regulating plate to rotate in another direction, the regulating plate will gradually move away from the part of the inlet of the upper and lower pipes that was originally blocked, thus making the opening larger. In this way, the opening size of the upper and lower pipes can be precisely adjusted according to the actual working requirements to control the flow rate of materials or other fluids through the pipeline.

[0027] Preferably, the drive assembly includes a motor mounted on the conveying pipe, the output shaft of the motor passing through the conveying pipe, and the output shaft of the motor being connected to an adjustment plate.

[0028] By adopting the above technical solution, the motor, as the power source, is installed on the conveying pipe. The output shaft of the motor passes through the conveying pipe and is connected to the adjusting plate. In this way, the rotational motion of the motor output shaft is directly transmitted to the adjusting plate. Since the adjusting plate is rotatably connected to the inlet of the upper and lower pipes, the adjusting plate can rotate around the connection point between itself and the inlet under the drive of the motor output shaft. When the motor rotates in the forward direction, the motor output shaft drives the adjusting plate to rotate in one direction. Conversely, when the motor rotates in the reverse direction, the motor output shaft drives the adjusting plate to rotate in the opposite direction.

[0029] In summary, the present invention has at least one of the following beneficial technical effects:

[0030] As the leachate flows through the transparent delivery pipe, ultraviolet lamps extending along the length of the pipe are simultaneously activated and emit ultraviolet light, thereby killing and inhibiting microorganisms in the leachate, achieving the purpose of preliminary purification of the leachate. The ultraviolet treatment of the leachate is carried out during the flow and transportation of the leachate, reducing the footprint and improving the treatment efficiency. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of the processing station according to an embodiment of the present invention;

[0032] Figure 2 This is a cross-sectional view of the overall structure of the processing station according to an embodiment of the present invention;

[0033] Figure 3 Embodiments of the present invention Figure 2 Enlarged view of the local structure at point A;

[0034] Figure 4 Embodiments of the present invention Figure 2 Enlarged view of the local structure at point B;

[0035] Figure 5 Embodiments of the present invention Figure 2 Enlarged view of the local structure at point C.

[0036] Figure label:

[0037] 1. Collection module; 11. Collection tank; 2. Ultraviolet treatment module; 21. Pump body; 22. Delivery pipe; 23. Ultraviolet lamp tube; 24. Reflector tube; 3. Membrane treatment module; 4. Blower assembly; 41. Fan; 42. Flow guide cavity; 43. Air inlet; 44. Air outlet; 45. Filter screen; 46. Impeller; 47. Brush; 48. Dustproof plate; 49. Torsion spring; 5. Uniform fan; 6. Diverter pipe; 61. Upper pipe; 62. Lower pipe; 63. Adjusting plate; 64. Drive assembly; 641. Motor. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-5 The present invention will be described in further detail below.

[0039] This invention provides a leachate treatment station for municipal solid waste incineration power plants, the structure of which is as follows: Figure 1 - Figure 2 As shown, it includes a collection module 1, an ultraviolet processing module 2, and a membrane processing module 3.

[0040] The collection module 1 includes a collection pool 11.

[0041] The ultraviolet treatment module 2 includes a pump body 21, a delivery pipe 22, and an ultraviolet lamp 23. The outlet of the collection pool 11 is connected to the inlet of the pump body 21, and the outlet of the pump body 21 is connected to the inlet of the delivery pipe 22. The delivery pipe 22 is transparent, and the ultraviolet lamp 23 is disposed on the delivery pipe 22 and extends along the length of the delivery pipe 22.

[0042] The outlet of the delivery pipe 22 is connected to the inlet of the membrane treatment module 3.

[0043] In operation, the collection tank 11, as the core component of the collection module 1, primarily collects leachate from the municipal solid waste incineration power plant, providing a centralized source for subsequent leachate treatment. This ensures that all leachate requiring treatment is effectively collected. The pump 21 starts working, utilizing its suction capacity to draw the leachate from the collection tank 11 outlet to the pump 21 inlet. Then, through the pressurization effect of the pump 21, the leachate is pushed from the pump 21 outlet to the inlet of the delivery pipe 22. This allows the leachate to flow along the delivery pipe 22 under pressure. As the leachate flows in the transparent delivery pipe 22, the ultraviolet lamps 23, which extend along the length of the delivery pipe 22, are simultaneously turned on and emit ultraviolet light, thereby killing and inhibiting microorganisms in the leachate and achieving the purpose of preliminary purification of the leachate. The leachate treated by the ultraviolet treatment module 2 flows out from the outlet of the delivery pipe 22 and then enters the inlet of the membrane treatment module 3, thereby achieving fine treatment of the leachate and obtaining treated water that meets the discharge standards or reuse requirements.

[0044] In this invention, when the leachate flows in the transparent conveying pipe 22, the ultraviolet lamp 23, which extends along the length of the conveying pipe 22, is turned on and emits ultraviolet light, thereby killing and inhibiting microorganisms in the leachate and achieving the purpose of preliminary purification of the leachate. The ultraviolet treatment of the leachate is realized during the flow and transportation of the leachate, which reduces the footprint and improves the treatment efficiency.

[0045] To enhance the effectiveness of ultraviolet radiation, please refer to... Figure 2 In a preferred embodiment, a reflector 24 is sleeved on the conveying pipe 22. The reflector 24 extends along the length of the conveying pipe 22 and is hollow between the reflector 24 and the conveying pipe 22. The ultraviolet lamp 23 is located between the conveying pipe 22 and the reflector 24. The ultraviolet lamp 23 is disposed on the reflector 24 and the reflector 24 is used to concentrate the ultraviolet rays generated by the ultraviolet lamp 23 into the conveying pipe 22.

[0046] In use, the ultraviolet lamp 23 is installed on the reflector 24 and located in the hollow area between the conveying pipe 22 and the reflector 24. When the ultraviolet lamp 23 is powered on, it emits ultraviolet rays in all directions. Due to its special position, the ultraviolet rays radiate in multiple directions, including the conveying pipe 22 and the reflector 24. Since the reflector 24 extends along the length of the conveying pipe 22 and surrounds the conveying pipe 22 and the ultraviolet lamp 23, most of the ultraviolet rays emitted from the ultraviolet lamp 23 and directed towards the reflector 24 are reflected back into the conveying pipe 22. This concentrates more of the ultraviolet rays that were originally scattered in all directions into the inner area of ​​the conveying pipe 22, increasing the intensity and density of ultraviolet rays within the conveying pipe 22. During the leachate treatment process, as the leachate flows in the conveying pipe 22, the increased intensity and density of ultraviolet rays within the conveying pipe 22 allows microorganisms, organic matter, and other pollutants in the leachate to receive more full ultraviolet irradiation, enhancing the treatment effect of the leachate and improving treatment efficiency and purification level.

[0047] To clean and cool down UV lamp 23, please refer to... Figure 2 In a preferred embodiment, the reflector tube 24 is provided with a blower assembly 4 for heat dissipation and cleaning of the ultraviolet lamp tube 23. The blower assembly 4 includes a fan 41. A guide cavity 42 is formed between the reflector tube 24 and the conveying pipe 22. An air inlet 43 and an air outlet 44 are respectively provided at both ends of the guide cavity 42. The outlet of the fan 41 is connected to the air inlet 43.

[0048] During operation, after the fan 41 is started, outside air is continuously drawn into the inlet of the fan 41 under atmospheric pressure. Since the outlet of the fan 41 is connected to the inlet 43 of the guide cavity 42 formed between the reflector 24 and the conveying pipe 22, the pressurized air flows into the inlet 43 along the connecting pipe and enters the guide cavity 42. Under the action of the pressure difference, the air entering the guide cavity 42 flows from the inlet 43 to the outlet 44. During this flow, the air comes into full contact with the ultraviolet lamp 23. The ultraviolet lamp 23 generates heat during operation, which is dissipated into the surrounding environment. When the air flows through the ultraviolet lamp 23, it absorbs the heat from the surface of the ultraviolet lamp 23, thus activating the ultraviolet lamp. The temperature of the ultraviolet lamp 23 decreases, which helps to dissipate heat and prevents it from being damaged by overheating, thus extending its service life. It also ensures that the ultraviolet lamp 23 operates in a relatively stable temperature environment, maintaining its normal luminous efficiency and sterilization performance. The airflow carries away dust and other impurities from the guide cavity 42, blowing away any dust or contaminants that may be attached to the surface of the ultraviolet lamp 23, thus cleaning it. This keeps the surface of the ultraviolet lamp 23 clean, ensuring that ultraviolet light is emitted smoothly without being blocked or absorbed by dust or other impurities, and ensuring that the treatment effect on the leachate in the delivery pipe 22 is not affected.

[0049] To reduce the possibility of dust entering the guide cavity 42, please refer to... Figure 3 In a preferred embodiment, the air inlet 43 is provided with a filter 45.

[0050] During use, the outside air often contains dust, lint, small particulate impurities, etc. The filter 45 can effectively block these impurities outside the air inlet 43, preventing them from entering the guide cavity 42 formed between the reflector tube 24 and the conveying tube 22 with the air. Without the filter 45, once these impurities enter the guide cavity 42, they may adhere to the surface of the ultraviolet lamp tube 23, affecting the ultraviolet emission effect. They may also accumulate in the guide cavity 42, affecting the normal airflow and thus interfering with the heat dissipation and cleaning function of the blower assembly 4 for the ultraviolet lamp tube 23.

[0051] To clean filter 45, please refer to... Figure 3 In a preferred embodiment, an impeller 46 is rotatably connected to the filter screen 45, and a brush 47 is coaxially provided on the impeller 46, with the brush 47 abutting against the outer side of the filter screen 45.

[0052] In use, when the blower assembly 4 is working, the fan 41 draws in outside air and delivers it to the air inlet 43. As the air passes through the filter 45 into the air inlet 43, a pressure difference is created on both sides of the filter 45 due to the filter's obstruction. This pressure difference causes the air to attempt to pass through the mesh of the filter 45 at a faster speed. The impeller 46 is mounted on the filter 45. The airflow impact force generated when the air passes through the filter 45, along with the driving force created by the pressure difference, acts on the impeller 46, causing it to rotate around its own axis. As the impeller 46 continues to rotate under the influence of the air pressure difference and the airflow impact force, the brush... 47 and impeller 46 are coaxially arranged. The rotational power of impeller 46 is directly transmitted to brush 47, causing brush 47 to rotate synchronously with impeller 46. During the rotation, the bristles of brush 47 continuously contact and rub against the outer surface of filter screen 45. Since brush 47 is in contact with filter screen 45, this contact can effectively sweep away dust, lint and other impurities that may be attached to the outer surface of filter screen 45. After these impurities are swept away by brush 47, they will be carried away from the vicinity of filter screen 45 by airflow and other means, thereby keeping the surface of filter screen 45 clean and preventing impurities from accumulating on filter screen 45 and affecting the filtration effect of filter screen 45.

[0053] To further reduce the possibility of dust entering the guide cavity 42, please refer to... Figure 4 In a preferred embodiment, a dustproof plate 48 is rotatably connected to the air outlet 44, and a torsion spring 49 is provided between the dustproof plate 48 and the air outlet 44. One end of the torsion spring 49 is connected to the dustproof plate 48, and the other end of the torsion spring 49 is connected to the air outlet 44. The torsion spring 49 causes the dustproof plate 48 to rotate in the direction of the air outlet 44. The torsion force of the torsion spring 49 is less than the wind force generated by the fan 41.

[0054] In use, the dustproof plate 48 is rotatably connected to the air outlet 44 via a torsion spring 49. When the blower assembly 4 is not working, due to the action of the torsion spring 49, the dustproof plate 48 tends to rotate towards the air outlet 44, thus blocking the air outlet 44. This prevents external dust and debris from entering the guide cavity 42 through the air outlet 44 when the equipment is not running, thereby protecting the internal ultraviolet lamp 23 and the airflow channel. When the fan 41 starts working, the air force generated by the fan 41 flows towards the air outlet 44 through the guide cavity 42. Since the air force generated by the fan 41 is greater than the torque of the torsion spring 49, the air force acts on the dustproof plate 48, overcoming the torque of the torsion spring 49, causing the dustproof plate 48 to rotate away from the air outlet 44, thereby opening the air outlet 44. At this time, the air... Air can smoothly exit from the guide cavity 42 through the air outlet 44 to the outside. During the continuous operation of the fan 41, the continuous wind force keeps the dustproof plate 48 in the open state. The air flows in the guide cavity 42, and after completing the heat dissipation and cleaning of the ultraviolet lamp tube 23, it is discharged from the air outlet 44. The dustproof plate 48 is stably in the open position under the action of the wind force, which does not affect the normal exhaust of air. When the fan 41 stops working, the wind force generated by the fan 41 disappears. At this time, the torque of the torsion spring 49 begins to play a role. Since the torsion spring 49 makes the dustproof plate 48 tend to rotate in the direction of the air outlet 44, the dustproof plate 48 rotates again under the action of the torque of the torsion spring 49, and returns to the initial state of blocking the air outlet 44, preventing external dust and other impurities from entering the guide cavity 42 until the next start of the fan 41.

[0055] To ensure a more uniform airflow within the guide cavity 42, please refer to... Figure 2 In a preferred embodiment, a uniform fan 5 is rotatably connected inside the flow guide cavity 42, and the uniform fan 5 faces the air inlet 43.

[0056] When the fan 41 blows air into the guide cavity 42 through the air inlet 43, the initial airflow may be turbulent, with uneven speed and pressure distribution. The rotation of the fan 5 can stir and guide the air entering the guide cavity 42, making the airflow distribution more uniform and stable within the guide cavity 42. This ensures that when the air flows through the ultraviolet lamp tube 23, all parts of the lamp tube can receive uniform airflow, achieving a more balanced heat dissipation effect, avoiding overheating of the lamp tube due to local airflow obstruction, and extending the overall service life of the ultraviolet lamp tube 23.

[0057] To return the sediment to collection tank 11, please refer to... Figure 5In a preferred embodiment, the ultraviolet treatment module 2 further includes a diversion pipe 6, which includes an upper pipe 61 and a lower pipe 62. The outlet of the conveying pipe 22 is connected to the inlets of both the upper pipe 61 and the lower pipe 62. The outlet of the upper pipe 61 is connected to the inlet of the membrane treatment module 3, and the outlet of the lower pipe 62 is connected to the inlet of the collection tank 11. The upper pipe 61 is used to convey the supernatant, and the lower pipe 62 is used to return the precipitate to the collection tank 11.

[0058] During use, as the leachate passes through the delivery pipe 22 in the ultraviolet treatment module 2, some substances in the leachate will undergo a certain degree of aggregation, precipitation, or stratification under ultraviolet irradiation and possible physicochemical effects. Some larger particles and heavier precipitates will gradually settle to the bottom of the delivery pipe 22, while the relatively lighter and clearer supernatant will be located at the top. When the leachate reaches the outlet of the delivery pipe 22 and enters the diversion pipe 6, due to the special layout and connection of the upper pipe 61 and the lower pipe 62, based on gravity and the flow characteristics of the liquid itself... The flow will naturally be diverted. The relatively clear supernatant located at the top of the delivery pipe 22 will preferentially flow into the upper pipe 61 under the influence of gravity and the direction of liquid flow and pressure distribution at the outlet of the delivery pipe 22. Meanwhile, the sediment located at the bottom of the delivery pipe 22, due to its greater weight and proximity to the inlet of the lower pipe 62, will flow into the lower pipe 62 under the influence of gravity. Through this working principle of the diversion pipe 6, the initial separation and reasonable diversion of the leachate after ultraviolet treatment are achieved, which improves the treatment efficiency of the entire leachate treatment station and the operational stability of the membrane treatment module 3.

[0059] To adjust the opening size of the upper tube 61 and lower tube 62 according to the amount of precipitate, please refer to... Figure 5 In a preferred embodiment, an adjusting plate 63 is rotatably connected to the inlet of the upper pipe 61 and the lower pipe 62, and a driving component 64 is provided on the conveying pipe 22. The driving component 64 is used to drive the adjusting plate 63 to rotate, thereby adjusting the opening size of the upper pipe 61 and the lower pipe 62.

[0060] In use, the regulating plate 63 is located at the inlet of the upper pipe 61 and the lower pipe 62 and is rotatably connected to them. This rotational movement can change the opening size of the inlet of the upper pipe 61 and the lower pipe 62. The drive assembly 64 is installed on the conveying pipe 22, and its main purpose is to provide power to the regulating plate 63 so that the regulating plate 63 can rotate. The initial state of the regulating plate 63 is at a certain angle to the inlet of the upper pipe 61 and the lower pipe 62, so that the inlet has an initial opening size. When the drive assembly 64 drives the regulating plate 63 to rotate in one direction, the regulating plate 63 will gradually block the inlet of the upper pipe 61 and the lower pipe 62, thereby making the opening smaller. Conversely, when the drive assembly 64 drives the regulating plate 63 to rotate in another direction, the regulating plate 63 will gradually move away from the part of the inlet of the upper pipe 61 and the lower pipe 62 that was originally blocked, thereby making the opening larger. In this way, the opening size of the upper pipe 61 and the lower pipe 62 can be precisely adjusted according to the actual working requirements to control the flow rate of materials or other fluids through the pipeline.

[0061] To drive the adjustment plate 63 to rotate, please refer to... Figure 5 In a preferred embodiment, the drive assembly 64 includes a motor disposed on the conveying pipe 22, the output shaft of the motor passing through the conveying pipe 22, and the output shaft of the motor being connected to the adjusting plate 63.

[0062] In use, the motor serves as the power source and is installed on the conveying pipe 22. The motor's output shaft passes through the conveying pipe 22 and is connected to the adjusting plate 63. In this way, the rotational motion of the motor's output shaft is directly transmitted to the adjusting plate 63. Since the adjusting plate 63 is rotatably connected to the inlets of the upper pipe 61 and the lower pipe 62, the adjusting plate 63 can rotate around its connection point with the inlets under the drive of the motor's output shaft. When the motor rotates in the forward direction, the motor's output shaft drives the adjusting plate 63 to rotate in one direction. Conversely, when the motor rotates in the reverse direction, the motor's output shaft drives the adjusting plate 63 to rotate in the opposite direction.

[0063] The implementation principle of a leachate treatment station for a municipal solid waste incineration power plant according to an embodiment of the present invention is as follows: The collection tank 11, as the core part of the collection module 1, primarily functions to collect leachate generated from the municipal solid waste incineration power plant, providing a centralized source for subsequent leachate treatment and ensuring that all leachate requiring treatment is effectively collected. The pump 21 starts working, utilizing its own suction capacity to draw the leachate from the outlet of the collection tank 11 to the inlet of the pump 21. Then, through the pressurization effect of the pump 21, the leachate is pumped from the outlet of the pump 21... The leachate is pushed to the inlet of the conveying pipe 22, allowing it to flow along the pipe under pressure. As the leachate flows through the transparent pipe 22, the ultraviolet lamps 23, which extend along the length of the pipe 22, are simultaneously turned on and emit ultraviolet light, thereby killing and inhibiting microorganisms in the leachate and achieving the purpose of preliminary purification. The leachate treated by the ultraviolet treatment module 2 flows out from the outlet of the conveying pipe 22 and then enters the inlet of the membrane treatment module 3, thereby achieving fine treatment of the leachate and obtaining treated water that meets the discharge standards or reuse requirements.

[0064] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A leachate treatment station for a municipal solid waste incineration power plant, characterized in that: include Collection module (1), the collection module (1) includes a collection pool (11); The ultraviolet treatment module (2) includes a pump body (21), a conveying pipe (22), and an ultraviolet lamp (23). The outlet of the collection pool (11) is connected to the inlet of the pump body (21), and the outlet of the pump body (21) is connected to the inlet of the conveying pipe (22). The conveying pipe (22) is transparent, and the ultraviolet lamp (23) is installed on the conveying pipe (22). The ultraviolet lamp (23) extends along the length of the conveying pipe (22). The membrane treatment module (3) has its outlet connected to the inlet of the delivery pipe (22); A reflector tube (24) is fitted onto the conveying pipe (22). The reflector tube (24) extends along the length of the conveying pipe (22). The reflector tube (24) and the conveying pipe (22) are in a hollow state. The ultraviolet lamp tube (23) is located between the conveying pipe (22) and the reflector tube (24). The ultraviolet lamp tube (23) is mounted on the reflector tube (24). The reflector tube (24) is used to concentrate the ultraviolet rays generated by the ultraviolet lamp tube (23) into the conveying pipe (22). The reflector tube (24) is provided with a blower assembly (4) for heat dissipation and cleaning of the ultraviolet lamp tube (23). The blower assembly (4) includes a fan (41). A flow guide cavity (42) is formed between the reflector tube (24) and the conveying pipe (22). An air inlet (43) and an air outlet (44) are respectively provided at both ends of the flow guide cavity (42). The outlet of the fan (41) is connected to the air inlet (43). The air inlet (43) is equipped with a filter screen (45); An impeller (46) is rotatably connected to the filter screen (45), and a brush (47) is coaxially provided on the impeller (46), with the brush (47) abutting against the outside of the filter screen (45). A dustproof plate (48) is rotatably connected to the air outlet (44). A torsion spring (49) is provided between the dustproof plate (48) and the air outlet (44). One end of the torsion spring (49) is connected to the dustproof plate (48), and the other end of the torsion spring (49) is connected to the air outlet (44). The torsion spring (49) causes the dustproof plate (48) to rotate towards the air outlet (44). The torsion force of the torsion spring (49) is less than the wind force generated by the fan (41). A uniform fan (5) is rotatably connected inside the flow guide cavity (42), and the uniform fan (5) faces the air inlet (43); The ultraviolet treatment module (2) also includes a diversion pipe (6), which includes an upper pipe (61) and a lower pipe (62). The outlet of the conveying pipe (22) is connected to the inlet of both the upper pipe (61) and the lower pipe (62). The outlet of the upper pipe (61) is connected to the inlet of the membrane treatment module (3), and the outlet of the lower pipe (62) is connected to the inlet of the collection tank (11). The upper pipe (61) is used to convey the supernatant, and the lower pipe (62) is used to return the precipitate to the collection tank (11). An adjusting plate (63) is rotatably connected to the inlet of the upper pipe (61) and the lower pipe (62). A driving component (64) is provided on the conveying pipe (22). The driving component (64) is used to drive the adjusting plate (63) to rotate, thereby adjusting the opening size of the upper pipe (61) and the lower pipe (62).

2. A leachate treatment station for a municipal solid waste incineration power plant according to claim 1, characterized in that: The drive assembly (64) includes a motor (641) mounted on the conveying pipe (22), the output shaft of the motor (641) passing through the conveying pipe (22), and the output shaft of the motor (641) being connected to the adjusting plate (63).

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