Efficient treatment equipment for landfill leachate

Abstract

The invention discloses efficient treatment equipment for landfill leachate. The efficient treatment equipment comprises a treatment tank, a membrane filtration assembly, an aeration assembly and a cleaning assembly, a treatment cavity and a liquid storage chamber are arranged in the treatment tank, the membrane filtration assembly is arranged in the treatment cavity, and the upper end of the membrane filtration assembly is communicated with the liquid storage chamber; the cleaning assembly is used for cleaning the surface of the membrane filtration assembly; the aeration assembly is used for introducing air into the treatment tank, the aeration assembly is in transmission connection with the cleaning assembly, and the gas introduced by the aeration assembly drives the cleaning assembly to clean the surface of the membrane filtration assembly. By arranging the cleaning assembly, gas introduced by the aeration assembly can drive the cleaning assembly to clean the surface of the membrane filtration assembly, so that a hollow fiber membrane tube does not need to be regularly detached for cleaning, and the working efficiency is effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of garbage treatment devices, and in particular to a high-efficiency treatment device for landfill leachate. Background Art

[0002] Leachate refers to a high-concentration organic wastewater that comes from the moisture contained in the garbage itself in the landfill, the rain and snow water that enters the landfill, and other moisture, minus the saturated water holding capacity of the garbage and covering soil layers, and passes through the garbage layer and covering soil layer.

[0003] Existing landfill leachate is treated with membrane bioreactors, but the sludge impurities in the leachate easily adhere to the hollow fiber membrane tubes, affecting the purification and filtration capacity of the hollow fiber membrane tubes. The hollow fiber membrane tubes need to be removed and cleaned regularly, affecting work efficiency. Summary of the invention

[0004] The problem to be solved by the present invention is to provide an efficient landfill leachate treatment device. By setting a cleaning component, the gas introduced into the aeration component can drive the cleaning component to clean the surface of the membrane filtration component. Therefore, there is no need to remove the hollow fiber membrane tube regularly for cleaning, which effectively improves the work efficiency.

[0005] The technical solution provided by the present invention to solve the above problems is: a landfill leachate high-efficiency treatment device, including a treatment tank, a membrane filtration component, an aeration component and a cleaning component;

[0006] The treatment tank is provided with a treatment chamber and a liquid storage chamber, the membrane filtration assembly is arranged in the treatment chamber and the upper end thereof is communicated with the liquid storage chamber;

[0007] The cleaning component is used to clean the surface of the membrane filtration component;

[0008] The aeration component is used to introduce air into the processing tank. The aeration component is transmission-connected with the cleaning component. The gas introduced through the aeration component drives the cleaning component to clean the surface of the membrane filtration component.

[0009] Preferably, the membrane filtration assembly comprises a hollow fiber membrane tube and mounting heads arranged at both ends of the hollow fiber membrane tube, and the two ends of the hollow fiber membrane tube are respectively connected to the liquid storage chamber and the aeration assembly through the mounting heads.

[0010] Preferably, the cleaning assembly includes a plurality of mounting rods and two rotating rings, the two rotating rings are rotatably mounted on two mounting heads, the two ends of the mounting rods are respectively connected to the two rotating rings, and bristles are provided on the mounting rods, and the end of the bristles away from the mounting rods contacts the outer circumferential surface of the hollow fiber membrane tube.

[0011] Preferably, the aeration assembly comprises an air source device, an air inlet pipe and an aeration plate, the air source device is connected to the aeration plate through the air inlet pipe, and the aeration plate is provided with air vents.

[0012] Preferably, a connecting ring is provided at the lower end of the rotating ring located at the lower end in the cleaning assembly, and the connecting ring can be transmission-connected to the aeration assembly.

[0013] Preferably, it further comprises a control component, wherein the control component is used to control whether the connecting ring is in transmission connection with the aeration component.

[0014] Preferably, the control assembly includes a driving component, a gear, a transmission shaft, a connecting seat and a mounting ring, the gear is arranged at the lower end of the connecting ring, the transmission shaft is rotatably arranged in the aeration plate, the connecting seat is arranged at the upper end of the transmission shaft and is provided with a groove matching the gear, the inner wall of the groove is provided with transmission teeth meshing with the gear, a plurality of mounting cavities are provided in the air vent, the mounting ring is sleeved on the transmission shaft and located in the mounting cavity, a plurality of blades are provided on the outer circumferential surface of the mounting ring, the blades extend into the air vent, and when air is passed into the air vent, the blades drive the mounting ring and the transmission shaft to rotate, and the driving component is used to control the gear to engage or disengage with the transmission teeth in the groove.

[0015] Preferably, the transmission shaft is provided with a plurality of limiting ridges, and the inner wall of the mounting ring is provided with a plurality of limiting grooves cooperating with the limiting ridges.

[0016] Preferably, the driving component includes a floating ring, a connecting rod and a bottom plate, the floating ring is arranged at the upper part of the processing chamber, one end of the connecting rod is connected to the floating ring, and the other end is connected to the bottom plate, and the transmission shaft is rotatably connected to the bottom plate.

[0017] Preferably, a liquid outlet pipe communicating with the interior of the liquid storage chamber is provided on the upper portion of the processing tank.

[0018] Compared with the prior art, the advantages of the present invention are: by setting a cleaning component, the gas introduced into the aeration component can drive the cleaning component to clean the surface of the membrane filtration component, so there is no need to remove the hollow fiber membrane tube regularly for cleaning, which effectively improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Figure 1 It is a three-dimensional structural schematic diagram of the present invention;

[0021] Figure 2is a cross-sectional view of the present invention;

[0022] Figure 3 is a top cross-sectional view of the membrane filtration assembly and the cleaning assembly of the present invention;

[0023] Figure 4 yes Figure 2 The enlarged schematic diagram of point A in the middle;

[0024] Figure 5 is a cross-sectional view of an aeration plate of the present invention;

[0025] Figure 6 yes Figure 5 A magnified schematic diagram of point B in the middle.

[0026] The attached drawings are marked with: 1. treatment tank, 2. air inlet pipe, 3. liquid inlet pipe, 4. liquid outlet pipe, 5. floating ring, 6. connecting rod, 7. liquid storage chamber, 8. aeration hole, 9. treatment chamber, 10. aeration plate, 11. bottom plate, 12. transmission shaft, 13. vent hole, 14. mounting rod, 15. bristles, 16. hollow fiber membrane tube, 17. mounting head, 18. rotating ring, 19. connecting ring, 20. gear, 21. groove, 22. connecting seat, 23. blade, 24. mounting chamber, 25. mounting ring, 26. limiting ridge. DETAILED DESCRIPTION

[0027] The following will describe the implementation methods of the present invention in detail with reference to the accompanying drawings and embodiments, so that the implementation process of how the present invention applies technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0028] In the description of the present invention, it should be noted that directional words, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of narrating the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific scope of protection of the present invention.

[0029] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features. Therefore, the definition of "first" and "second" features can explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0030] In the present invention, unless otherwise specified and limited, the terms "assemble", "connect", and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0032] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms of "a", "an" and "the" are intended to include plural forms.

[0033] As shown in the accompanying drawings, a specific embodiment of the present invention is a landfill leachate high-efficiency treatment device, including a treatment tank 1, a membrane filtration component, an aeration component and a cleaning component;

[0034] The treatment tank 1 is provided with a treatment chamber 9 and a liquid storage chamber 7, and the membrane filtration assembly is arranged in the treatment chamber 9 and the upper end thereof is connected with the liquid storage chamber 7;

[0035] The cleaning component is used to clean the surface of the membrane filtration component;

[0036] The aeration component is used to introduce air into the treatment tank 1. The aeration component is transmission-connected with the cleaning component. The gas introduced through the aeration component drives the cleaning component to clean the surface of the membrane filtration component.

[0037] In the above scheme, by providing a cleaning component, the gas introduced into the aeration component can drive the cleaning component to clean the surface of the membrane filtration component. Therefore, there is no need to remove the hollow fiber membrane tube regularly for cleaning, which effectively improves work efficiency.

[0038] In this embodiment, specifically, the membrane filtration assembly includes a hollow fiber membrane tube 16 and mounting heads 17 disposed at both ends of the hollow fiber membrane tube 16 , and the two ends of the hollow fiber membrane tube 16 are connected to the liquid storage chamber 7 and the aeration assembly respectively through the mounting heads 17 .

[0039] Among them, the cleaning assembly includes a number of mounting rods 14 and two rotating rings 18. The two rotating rings 18 can be rotatably mounted on two mounting heads 17. The two ends of the mounting rod 14 are respectively connected to the two rotating rings 18. The mounting rod 14 is provided with bristles 15. The end of the bristles 15 away from the mounting rod 14 contacts the outer circumferential surface of the hollow fiber membrane tube 16.

[0040] Specifically, the aeration assembly includes an air source device, an air inlet pipe 2 and an aeration plate 10. The air source device is connected to the aeration plate 10 through the air inlet pipe 2. The aeration plate 10 is provided with air holes 13. Air is continuously introduced into the aeration plate through the air source device, thereby achieving an aeration effect.

[0041] Wherein, a connecting ring 19 is provided at the lower end of the rotating ring 18 at the lower end in the cleaning component, and the connecting ring 19 can be transmission-connected to the aeration component.

[0042] In this embodiment, further, in order to prevent the cleaning component from scraping the hollow fiber membrane tube all the time during the operation of the equipment and reducing the service life of the hollow fiber membrane tube, this embodiment also includes a control component, which is used to control whether the connecting ring 19 is connected to the aeration component in transmission.

[0043] Specifically, the control assembly includes a driving component, a gear 20, a transmission shaft 12, a connecting seat 22 and a mounting ring 25. The gear 20 is arranged at the lower end of the connecting ring 19, and the transmission shaft 12 is rotatably arranged in the aeration plate 10. The connecting seat 22 is arranged at the upper end of the transmission shaft 12 and is provided with a groove 21 that cooperates with the gear 20. The inner wall of the groove 21 is provided with a transmission tooth that meshes with the gear 20. The vent 13 is provided with a plurality of mounting cavities 24. The mounting ring 25 is sleeved on the transmission shaft 12 and is located in the mounting cavity 24. A plurality of blades 23 are provided on the outer circumferential surface of the mounting ring 25, and the blades 23 extend into the vent 13. When air is passed into the vent 13, the blades 23 drive the mounting ring 25 and the transmission shaft 12 to rotate. The driving component is used to control the gear 20 to engage or disengage with the transmission teeth in the groove 21. Specifically, the transmission shaft 12 is provided with a plurality of limiting ridges 26, and the inner wall of the mounting ring 25 is provided with a plurality of limiting grooves cooperating with the limiting ridges 26, so that the rotation limiting of the mounting ring can be completed. It should be noted that the two ends of the mounting ring are rotatably connected to the upper and lower ends of the mounting cavity.

[0044] Furthermore, the driving component includes a floating ring 5, a connecting rod 6 and a base plate 11. The floating ring 5 is arranged at the upper part of the processing chamber 9. One end of the connecting rod 6 is connected to the floating ring 5 and the other end is connected to the base plate 11. The transmission shaft 12 is rotatably connected to the base plate 11.

[0045] In the above scheme, the air source device introduces air into the aeration plate, and the air enters the vent hole to drive the blades and the transmission shaft to rotate. When the filtration capacity of the hollow fiber membrane tube is good, the gear and the transmission tooth in the groove do not mesh, and the transmission shaft idles at this time. When the filtration capacity of the hollow fiber membrane tube is reduced to the set value, the leachate in the treatment chamber accumulates more, and the buoyancy generated by the leachate drives the floating plate to move upward, thereby driving the bottom plate and the transmission shaft to move upward. After the transmission shaft moves upward for a distance, the transmission teeth in the groove on the connecting seat mesh with the gear. The rotation of the transmission shaft drives the connecting ring and the rotating ring to rotate, thereby driving the installation rod to rotate. During the rotation of the installation rod, the bristles are driven to scrape the surface of the hollow fiber membrane tube to remove the sludge impurities adhered to the surface of the hollow fiber membrane tube, thereby improving the purification and filtration capacity of the hollow fiber membrane tube. After filtering for a period of time, the liquid level in the treatment chamber drops, and the floating plate and the bottom plate move downward under the action of their own gravity, driving the connecting seat on the transmission shaft to fall off and mesh with the gear, and the cleaning component no longer rotates. This solution can start the cleaning component to clean the surface of the hollow fiber membrane tube after the filtration capacity of the hollow fiber membrane tube is reduced to the set value, thereby improving the purification and filtration capacity of the hollow fiber membrane tube. At the same time, when the filtration capacity of the hollow fiber membrane tube is better, the cleaning component does not work, which can prevent the cleaning component from scraping the hollow fiber membrane tube all the time during the operation of the equipment and reducing the service life of the hollow fiber membrane tube.

[0046] Among them, it should be noted that the delivery of leachate in this scheme is intermittent, that is, the leachate is delivered to the treatment tank once every 30 minutes or so, and the amount of leachate delivered each time is fixed. When the filtration capacity of the hollow fiber membrane tube is better, after the leachate delivered and filtered last time is processed, the leachate is delivered to the treatment tank again. The liquid level of the leachate is at the same position as the liquid level of the last leachate. When the filtration capacity of the hollow fiber membrane tube is reduced to the set value, the leachate delivered and filtered last time was not completely processed in time. After the leachate is delivered to the treatment tank again, the leachate will be higher than the liquid level of the last leachate, and therefore, the floating plate will be driven to move upward.

[0047] As another embodiment of the present invention, a liquid outlet pipe 4 communicating with the interior of the liquid storage chamber 7 is provided on the upper portion of the treatment tank 1. The treated leachate in the liquid storage chamber is transported away through the liquid outlet pipe.

[0048] The above description is only for the best embodiment of the present invention, but it should not be understood as limiting the claims. The present invention is not limited to the above embodiments, and its specific structure is allowed to be changed. All changes made within the scope of protection of the independent claims of the present invention are within the scope of protection of the present invention.

Claims

1. A landfill leachate efficient treatment equipment, characterized by: It comprises a treatment tank (1), a membrane filtration component, an aeration component and a cleaning component; The processing tank (1) is provided with a processing chamber (9) and a liquid storage chamber (7); the membrane filtration assembly is arranged in the processing chamber (9) and the upper end thereof is communicated with the liquid storage chamber (7); The cleaning component is used to clean the surface of the membrane filtration component; The aeration component is used to introduce air into the processing tank (1), and the aeration component is drivingly connected to the cleaning component, and the gas introduced through the aeration component drives the cleaning component to clean the surface of the membrane filtration component.

2. The landfill leachate efficient treatment equipment according to claim 1, characterized in that: The membrane filtration component comprises a hollow fiber membrane tube (16) and mounting heads (17) arranged at both ends of the hollow fiber membrane tube (16); the two ends of the hollow fiber membrane tube (16) are respectively connected to the liquid storage chamber (7) and the aeration component through the mounting heads (17).

3. The landfill leachate efficient treatment equipment according to claim 2 is characterized by: The cleaning assembly comprises a plurality of mounting rods (14) and two rotating rings (18). The two rotating rings (18) are rotatably mounted on two mounting heads (17). The two ends of the mounting rod (14) are respectively connected to the two rotating rings (18). Bristles (15) are arranged on the mounting rod (14). The end of the bristles (15) away from the mounting rod (14) contacts the outer circumferential surface of the hollow fiber membrane tube (16).

4. The landfill leachate efficient treatment equipment according to claim 3 is characterized by: The aeration assembly comprises an air source device, an air inlet pipe (2) and an aeration plate (10); the air source device is connected to the aeration plate (10) via the air inlet pipe (2); and a vent hole (13) is provided in the aeration plate (10).

5. The landfill leachate efficient treatment equipment according to claim 4, characterized in that: A connecting ring (19) is provided at the lower end of a rotating ring (18) located at the lower end in the cleaning component, and the connecting ring (19) can be drivingly connected to the aeration component.

6. The landfill leachate efficient treatment equipment according to claim 5, characterized in that: It also comprises a control component, which is used to control whether the connecting ring (19) is in driving connection with the aeration component.

7. The landfill leachate efficient treatment equipment according to claim 6, characterized in that: The control assembly comprises a driving component, a gear (20), a transmission shaft (12), a connecting seat (22) and a mounting ring (25), wherein the gear (20) is arranged at the lower end of the connecting ring (19), the transmission shaft (12) is rotatably arranged in the aeration plate (10), the connecting seat (22) is arranged at the upper end of the transmission shaft (12) and is provided with a groove (21) matching with the gear (20), the inner wall of the groove (21) is provided with a transmission tooth meshing with the gear (20), and the ventilation hole (13) is provided with a A plurality of mounting cavities (24), the mounting ring (25) is sleeved on the transmission shaft (12) and is located in the mounting cavity (24), a plurality of blades (23) are arranged on the outer circumferential surface of the mounting ring (25), the blades (23) extend into the vent hole (13), when air is passed into the vent hole (13), the blades (23) drive the mounting ring (25) and the transmission shaft (12) to rotate, and the driving component is used to control the gear (20) to mesh with or disengage the transmission teeth in the groove (21).

8. The landfill leachate efficient treatment equipment according to claim 7, characterized in that: The transmission shaft (12) is provided with a plurality of limiting ridges (26), and the inner wall of the mounting ring (25) is provided with a plurality of limiting grooves that cooperate with the limiting ridges (26).

9. The landfill leachate efficient treatment equipment according to claim 8, characterized in that: The driving component comprises a floating ring (5), a connecting rod (6) and a bottom plate (11); the floating ring (5) is arranged at the upper part of the processing chamber (9); one end of the connecting rod (6) is connected to the floating ring (5) and the other end is connected to the bottom plate (11); the transmission shaft (12) is rotatably connected to the bottom plate (11).

10. The landfill leachate efficient treatment equipment according to claim 1, characterized in that: The upper part of the processing tank (1) is provided with a liquid outlet pipe (4) which is in communication with the interior of the liquid storage chamber (7).

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