Full-quantitative treatment device for landfill leachate

Abstract

The invention relates to the field of landfill leachate treatment equipment, in particular to a landfill leachate full-quantification treatment device which comprises a mounting support, a filtering mechanism used for filtering leachate is arranged at the mounting support, and the filtering mechanism can slide in the height direction of the mounting support; the filtering mechanism comprises a mounting seat with a one-way opening and an annular cover plate propped against the mounting seat, and an annular filtering cavity is jointly formed between the annular cover plate and the mounting seat; a filter plate which is arranged along the radial direction of the annular cover plate and is used for filtering leachate is arranged at the annular cover plate; and a filter screen which is arranged along the circumferential direction of the annular cover plate is arranged at the edge of the annular cover plate. According to the device and the method, the removal efficiency of inorganic particle impurities such as sand grains, gravels and slag in the landfill leachate is better improved, and the filtered inorganic particle impurities such as sand grains, gravels and slag do not need to be manually cleaned, so that the labor intensity of workers is better reduced.

Description

Technical Field

[0001] The present invention relates to the field of garbage leachate treatment equipment, and specifically, to a device for the full-quantification treatment of garbage leachate. Background Art

[0002] Full-quantification treatment of garbage leachate is a technical means aiming to comprehensively treat garbage leachate to make it meet the discharge standards or achieve reuse, while minimizing pollutant emissions and waste generation as much as possible. The full-quantification treatment of garbage leachate mainly includes the following steps: 1. Pretreatment: Usually including a grille, a grit chamber, an adjustment tank, etc., which are used to remove large-particle impurities and sand grains in the leachate, and adjust the water quality and quantity to provide stable inlet conditions for subsequent treatment. For example, large pieces of garbage in the garbage leachate are intercepted by the grille to prevent it from blocking subsequent treatment equipment.

[0003] 2. Biological treatment: This is one of the core links. Common processes include the activated sludge method, the biofilm method, anaerobic biological treatment, etc. Through the action of microorganisms, organic pollutants in the leachate are decomposed into harmless substances such as carbon dioxide and water. For example, anaerobic biological treatment can convert organic matter into biogas under anaerobic conditions to achieve energy recovery.

[0004] 3. Advanced treatment: The leachate after biological treatment usually needs further advanced treatment to meet more stringent discharge standards or reuse requirements. Advanced treatment methods include membrane separation technologies (such as reverse osmosis, nanofiltration), advanced oxidation technologies (such as Fenton oxidation, ozone oxidation), adsorption technologies, etc. Taking the membrane separation technology as an example, it can effectively intercept dissolved organic matter, heavy metal ions, etc. in the leachate, greatly improving the quality of the effluent.

[0005] 4. Concentrate treatment: A certain amount of concentrate will be generated after the treatment of garbage leachate, and its treatment is more difficult. Common treatment methods include evaporation crystallization, solidification treatment, reinjection, etc. Evaporation crystallization is to evaporate the water in the concentrate to crystallize out the solute, realizing the solidification and reduction of pollutants; solidification treatment is to mix the concentrate with a solidifying agent to form a stable solid substance, which is convenient for landfill or disposal.

[0006] During the pretreatment process, a grille is used to intercept larger debris in the landfill leachate, such as plastic bags, paper, branches, fabrics, etc. If these debris enter the subsequent treatment equipment, it may cause equipment blockage and entanglement, affect the normal operation of the equipment, and even cause equipment damage. The leachate after being treated by the grille will still carry some inorganic particulate impurities such as sand grains, gravels, and cinder. The grit chamber utilizes the gravitational force to make these inorganic particles with a larger specific gravity precipitate to the bottom of the chamber, thereby effectively removing impurities such as sand grains in the leachate, preventing them from causing wear and blockage to the subsequent treatment equipment, protecting the normal operation of equipment such as water pumps, pipelines, and valves, and extending the service life of the equipment. Although the grit chamber can remove inorganic particulate impurities such as sand grains, gravels, and cinder in the leachate through the action of gravity, there are still problems in actual use, such as a relatively long precipitation time, and it is necessary to regularly clean the inorganic particulate impurities such as sand grains, gravels, and cinder deposited in the grit chamber, thereby reducing the treatment efficiency of the landfill leachate. Summary of the Invention

[0007] To solve the above technical problems, the present invention is solved by the following technical solutions.

[0008] A full-quantification treatment device for landfill leachate includes a mounting bracket. A filtering mechanism for filtering the leachate is provided at the mounting bracket. The filtering mechanism can slide along the height direction of the mounting bracket. An elastic mechanism for jacking up the filtering mechanism is provided at the mounting bracket; The filtering mechanism includes a one-way open mounting seat and an annular cover plate abutted against the mounting seat. A circular filtering chamber is jointly formed between the annular cover plate and the mounting seat; a filter plate for filtering the leachate is provided at the annular cover plate along its radial direction, and a filter net is provided at the edge of the annular cover plate along its circumferential direction; a water inlet hole communicating with the filtering chamber is provided in the middle of the mounting seat; a drain port for discharging the filtered leachate is provided at the bottom end of the mounting seat; a sewage discharge port is provided at the upper end of the filtering chamber, and a guide plate located below the sewage discharge port is provided at the mounting seat; It further includes a driving mechanism. The driving mechanism includes a driving motor. The driving mechanism is used to drive the annular cover plate to rotate so that the filter plate scrapes the impurities in the filtering chamber to the sewage discharge port for discharge; It further includes a control mechanism. The control mechanism is used to connect the circuit of the driving motor to make the driving mechanism work when the mounting seat descends to a specified position.

[0009] As a preferred solution of the present invention, the mounting seat includes a circular bottom plate. An outer side enclosure perpendicular to the bottom plate is provided at the edge of the bottom plate. A circular center enclosure that is in clearance fit with the inner wall of the annular cover plate is provided in the middle of the bottom plate; the water inlet hole is provided at the bottom plate, the drain port is provided at the bottom end of the outer side enclosure, and a enclosure opening is formed at the top of the center enclosure to form a sewage discharge port.

[0010] As a preferred embodiment of the present invention, the mounting base is provided with a connecting frame. The connecting frame includes a mounting plate disposed at the lower end of the mounting base, and a connecting plate connected to the side wall of the mounting base is provided on the upper end surface of the mounting plate; a slide rail is provided on the mounting bracket along the height direction of the mounting bracket, and a slider is provided on the connecting frame and is matched with the slide rail.

[0011] As a preferred embodiment of the present invention, the elastic mechanism includes a threaded column disposed on the mounting bracket and below the mounting plate. A threaded column blind hole is provided in the threaded column, and a smooth shaft that is in clearance fit with the threaded column blind hole and extends into the threaded column blind hole is provided on the bottom end surface of the mounting plate; a lifting spring for jacking up the mounting plate is sleeved on the threaded column, and an adjusting nut for adjusting the compression amount of the lifting spring is further provided on the threaded column.

[0012] As a preferred embodiment of the present invention, a gear ring is provided on the end surface of the annular cover plate away from the mounting base. The driving mechanism includes a driving motor disposed on the mounting plate, a gear meshing with the gear ring is provided on the rotating shaft of the driving motor, and the driving mechanism further includes an external power source for supplying power to the driving motor.

[0013] As a preferred embodiment of the present invention, the control mechanism includes a mounting post disposed on the mounting bracket. A mounting post blind hole is provided at the upper end of the mounting post. A mounting block is fixedly provided at the bottom end of the mounting post blind hole, and a first magnetic block is fixedly provided at the upper end of the mounting block; a sliding post is also slidably provided in the mounting post blind hole. A second magnetic block attracting the first magnetic block is provided at the lower end of the sliding post. A first conductive ring is provided on the upper end surface of the mounting block, and a second conductive ring for contacting the first conductive ring to close the power supply circuit of the driving motor is provided at the lower end surface of the sliding post. The first conductive ring and the second conductive ring are respectively electrically connected to the driving mechanism through cables; The side wall of the lower end of the sliding post expands outward to form a sliding post lower flange that is in clearance fit with the mounting post blind hole. A sliding post spring for jacking up the sliding post is provided in the mounting post blind hole between the sliding post lower flange and the mounting block, and the elastic force of the sliding post spring is less than the magnetic attraction force between the first magnetic block and the second magnetic block; The control mechanism further includes a connecting rod disposed on the mounting base. A strip-shaped opening is provided in the mounting post blind hole. The end of the connecting rod passes through the strip-shaped opening and extends into the mounting post blind hole. An insulating sleeve ring is provided at the end of the connecting rod extending into the mounting post blind hole. The insulating sleeve ring is used to press the sliding post lower flange as the mounting base descends so that the first conductive ring contacts the second conductive ring; a sliding post upper flange is further provided at the upper end of the sliding post, and the insulating sleeve ring is also used to push the sliding post upper flange as the mounting base ascends so that the first magnetic block and the second magnetic block are disengaged from the attraction.

[0014] As a preferred embodiment of the present invention, the number of filter plates at the annular cover plate is 4, the angle between two adjacent filter plates is 90°, the number of water inlet holes is 2 and they are respectively arranged at both ends of the middle part of the mounting seat, and the 4 filter plates are respectively located at the upper and lower ends of the two water inlet holes; the rotation angle of the annular cover plate between the start of contact between the first conductive ring and the second conductive ring and the disconnection of contact between the first conductive ring and the second conductive ring is 270°.

[0015] As a preferred embodiment of the present invention, it further includes a water inlet pipe, and a two-way pipe is provided at the water inlet pipe for connecting with the two water inlet holes.

[0016] As a preferred embodiment of the present invention, a baffle for abutting the annular cover plate against the mounting seat is bolted at the central enclosing plate.

[0017] As a preferred embodiment of the present invention, a drain pipe is provided at the lower end of the drain outlet.

[0018] The beneficial effects of the present invention are as follows: 1. Compared with the current landfill leachate sedimentation tank, the present invention not only better improves the removal efficiency of inorganic particulate impurities such as sand grains, gravels, and slag in landfill leachate, but also does not require manual cleaning of the filtered inorganic particulate impurities such as sand grains, gravels, and slag, thus better reducing the labor intensity of the staff.

[0019] 2. In the present invention, by adjusting the compression amount of the lifting spring through the adjusting nut, the trigger threshold of the impurity load can be set, enabling the device to start the cleaning operation when the impurities reach a certain amount according to different working conditions and treatment requirements.

[0020] 3. In the present invention, through the setting of the number of filter plates at the annular cover plate, the setting of the angle between the filter plates, and the setting of the rotation angle of the annular cover plate, after rotating the annular cover plate, the filtering effect on landfill leachate is not only better improved. Through the setting of the two water inlet holes, after several rotations, the cooperation between the two water inlet holes and different plate surfaces of the filter plates can be used to filter the landfill leachate, thereby realizing the backwashing of the filter plates. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the landfill leachate full-quantification treatment device in the specific embodiment; Figure 2 It is a cross-sectional view of the landfill leachate full-quantification treatment device in the specific embodiment; Figure 3 It is a schematic structural diagram of the mounting seat in the specific embodiment; Figure 4 It is a schematic structural diagram of the annular cover plate in the specific embodiment; Figure 5Schematic structural diagram of the mounting bracket in the specific implementation manner; Figure 6 Schematic structural diagram of the control mechanism in the specific implementation manner; Figure 7 Schematic usage diagram of the water inlet pipe and the two-way pipe in the specific implementation manner.

[0022] The reference numerals are as follows: 110 - mounting bracket, 120 - mounting base, 130 - annular cover plate, 131 - gear ring, 140 - material guide plate, 150 - connecting frame, 151 - mounting plate, 152 - connecting plate, 160 - slide rail, 170 - driving motor, 180 - gear, 190 - baffle, 1100 - drain pipe, 1110 - slider, 210 - filtering chamber, 220 - filter plate, 230 - filter net, 240 - water inlet hole, 250 - drain port, 260 - sewage discharge port, 310 - bottom plate, 320 - outer side enclosure plate, 330 - central enclosure plate, 340 - enclosure plate opening, 510 - threaded column, 520 - threaded column blind hole, 530 - lifting spring, 540 - adjusting nut, 550 - mounting column, 560 - mounting column blind hole, 610 - mounting block, 620 - first magnetic block, 630 - sliding column, 640 - second magnetic block, 650 - first conductive ring, 660 - second conductive ring, 670 - lower flange of sliding column, 680 - sliding column spring, 690 - connecting rod, 6110 - insulating sleeve ring, 6120 - upper flange of sliding column, 6100 - strip-shaped opening, 710 - water inlet pipe, 720 - two-way pipe. Specific implementation manner

[0023] To further understand the content of the present invention, the present invention will be described in detail in combination with the accompanying drawings and the implementation manner. It should be understood that the implementation manner is only for explaining the present invention rather than limiting it.

[0024] As Figure 1-4 shown, this implementation manner provides a device for full - quantification treatment of landfill leachate, which includes a mounting bracket 110. A filtering mechanism for filtering the leachate is provided at the mounting bracket 110. The filtering mechanism can slide along the height direction of the mounting bracket 110. An elastic mechanism for jacking up the filtering mechanism is provided at the mounting bracket 110; The filtering mechanism includes a mounting base 120 with a one-way opening and an annular cover plate 130 abutted against the mounting base 120. The annular cover plate 130 can rotate around the axis of the mounting base 120. A circular filtering cavity 210 is jointly formed between the annular cover plate 130 and the mounting base 120. A filter plate 220 is provided on the annular cover plate 130 and arranged radially thereof for filtering leachate. A filter net 230 is provided at the edge of the annular cover plate 130 and arranged circumferentially thereof. A water inlet hole 240 communicating with the filtering cavity 210 is provided in the middle of the mounting base 120. A drain port 250 for discharging the filtered leachate is provided at the bottom end of the mounting base 120. A drain pipe 1100 is provided at the lower end of the drain port 250. A sewage discharge port 260 is provided at the upper end of the filtering cavity 210. A guide plate 140 is provided on the mounting base 120 and located below the sewage discharge port 260. It further includes a driving mechanism. The driving mechanism includes a driving motor 170. The driving mechanism is used to drive the annular cover plate 130 to rotate so that the filter plate 220 scrapes the impurities in the filtering cavity 210 to the sewage discharge port 260 for discharge. It further includes a control mechanism. The control mechanism is used to connect the circuit of the driving motor 170 to make the driving mechanism work when the mounting base 120 descends to a specified position.

[0025] When filtering the leachate of garbage, the leachate flows into the filtering cavity 210 through the water inlet hole 240. The liquid first intercepts and filters inorganic particles such as filter sand and gravel through the filter plate 220 (mesh holes 10 - 50μm), and then flows into or through the filter net 230 to the bottom drain port 250 and the drain pipe 1100, so as to realize the discharge of the filtered liquid. Inorganic particles such as filter sand and gravel in the leachate stay on the upper surface of the filter plate 220 and the inner side of the filter net 230 to form a filter cake layer, gradually increasing the filtering resistance, and the weight of the mounting base 120 also increases accordingly.

[0026] As the filter cake layer thickens, the filtration resistance increases, and the downward pressure on the filtration mechanism caused by the increasing weight of the mounting base 120 exceeds the elastic force of the lifting spring 530. The mounting base 120 gradually slides downward. When the mounting base 120 descends to a preset position (such as a 5 cm descent, set by the adjusting nut 540), the circuit of the driving mechanism closes, and the annular cover plate 130 rotates: the filter plate 220 rotates with the annular cover plate 130, pushing the impurities on the surface of the filter plate 220 and inside the filter net 230 towards the top sewage outlet 260 (since the filtration chamber 210 is annular, the impurities move circumferentially to the sewage outlet 260). The impurities fall through the sewage outlet 260 onto the guide plate 140 and slide out of the device along the guide plate 140, entering the impurity collection box. After the impurities are discharged, the weight of the filter cake layer disappears, the lifting spring 530 releases its elastic force, pushing the mounting plate 151 upward and driving the filtration mechanism to reset along the slide rail 160. When the filtration mechanism is reset, the circuit of the driving mechanism disconnects, enabling the filter plate 220 and the filter net 230 to filter the landfill leachate again.

[0027] In this embodiment, the landfill leachate full-quantification treatment device, compared with the current landfill leachate sedimentation tank, realizes the filtration of inorganic particulate impurities such as sand grains, gravel, and slag in the landfill leachate through the filter plate 220 and the filter net 230, and can automatically discharge the filtered inorganic particulate impurities such as sand grains, gravel, and slag from the device; thus, compared with the current treatment method of inorganic particulate impurities such as sand grains, gravel, and slag in the leachate in the sedimentation tank, it not only better improves the removal efficiency of inorganic particulate impurities such as sand grains, gravel, and slag in the landfill leachate, but also eliminates the need for manual cleaning of the filtered inorganic particulate impurities such as sand grains, gravel, and slag, thereby better reducing the labor intensity of the staff.

[0028] It should be noted that: the landfill leachate full-quantification treatment device in this embodiment also includes common grille, regulating tank, biological treatment mechanism, advanced treatment mechanism, and concentrated liquid treatment mechanism on the current market. These mechanisms are also mentioned in the background technology. Since there is no improvement on the grille, regulating tank, biological treatment mechanism, advanced treatment mechanism, and concentrated liquid treatment mechanism in this embodiment, they will not be elaborated in this embodiment. In the specific production process, technicians can connect the common grille, regulating tank, biological treatment mechanism, advanced treatment mechanism, and concentrated liquid treatment mechanism on the market to this device to achieve the full-quantification treatment of landfill leachate.

[0029] Combined with Figure 3As shown, the mounting base 120 includes a circular bottom plate 310. At the edge of the bottom plate 310, there is an outer side plate 320 perpendicular to the bottom plate 310. In the middle of the bottom plate 310, there is a circular center plate 330 that is in clearance fit with the inner wall of the annular cover plate 130. A baffle 190 for abutting the annular cover plate 130 against the mounting base 120 is bolted at the center plate 330. The water inlet hole 240 is arranged at the bottom plate 310, the drain port 250 is arranged at the bottom end of the outer side plate 320, and a plate opening 340 is opened at the top end of the center plate 330 to form a sewage discharge port 260.

[0030] Through the setting of the structure of the mounting base 120, the filtration and discharge of leachate are realized. Through the setting of the baffle 190, the installation of the annular cover plate 130 is realized. During maintenance, only by removing the baffle 190 can the annular cover plate 130 be separated from the mounting base 120, so that the installation and disassembly of the annular cover plate 130 can be extremely conveniently realized, facilitating the maintenance of the device.

[0031] Between the joint surfaces of the annular cover plate 130 and the mounting base 120, an annular nitrile rubber gasket (thickness 2 mm, hardness Shore 70°) is provided. The compression amount of the gasket is controlled by the bolt pre-tightening force to form a sealing pressure of 0.2 MPa, ensuring that the liquid cannot penetrate the sealing interface. Thus, it is avoided that the leachate flows out between the annular cover plate 130 and the mounting base 120.

[0032] In this embodiment, the mounting base 120 is provided with a connecting frame 150. The connecting frame 150 includes a mounting plate 151 arranged at the lower end of the mounting base 120. At the upper end surface of the mounting plate 151, there is a connecting plate 152 connected to the side wall of the mounting base 120; at the mounting bracket 110, there is a slide rail 160 arranged along the height direction of the mounting bracket 110, and at the connecting frame 150, there is a slider 1110 that cooperates with the slide rail 160.

[0033] Through the cooperation between the slider 1110 at the connecting frame 150 of the mounting base 120 and the slide rail 160 at the mounting bracket 110, the mounting base 120 can move relatively stably along the height direction of the mounting bracket 110.

[0034] Combined Figure 5 As shown, the elastic mechanism includes a threaded column 510 arranged at the mounting bracket 110 and located below the mounting plate 151. There is a threaded column blind hole 520 in the threaded column 510. At the bottom end surface of the mounting plate 151, there is a smooth shaft 350 that is in clearance fit with the threaded column blind hole 520 and extends into the threaded column blind hole 520; a lifting spring 530 for jacking up the mounting plate 151 is sleeved on the threaded column 510, and an adjusting nut 540 for adjusting the compression amount of the lifting spring 530 is also provided at the threaded column 510.

[0035] Before the device starts working, the operator adjusts the compression amount of the lifting spring 530 by adjusting the nut 540, thereby setting the initial elastic force of the lifting spring 530. This initial elastic force should be determined according to the self-weight of the filtering mechanism and the expected impurity load trigger threshold. The optical axis 350 extends into the threaded column blind hole 520 to play a guiding role, ensuring that the mounting plate 151 and the mounting seat 120 connected thereto can only move in the vertical direction, avoiding shaking or deviation.

[0036] After the impurities in the filtering chamber 210 are cleared, the weight of the mounting seat 120 and its attached components decreases, and the elastic force of the lifting spring 530 is greater than the current load. The lifting spring 530 begins to elongate, pushing the mounting plate 151 upward, and the mounting seat 120 returns to its initial position. At the same time, the control mechanism resets, and the circuit of the driving mechanism is disconnected, waiting for the next impurity accumulation trigger.

[0037] In this embodiment, by adjusting the nut 540 to adjust the compression amount of the lifting spring 530, the trigger threshold of the impurity load can be set. For example, by changing the initial compression amount of the lifting spring 530, the elastic force of the lifting spring 530 can be adjusted, thereby controlling the timing of the mounting seat 120 descending to trigger the control mechanism. This enables the device to start the cleaning operation when the impurities reach a certain amount according to different working conditions and processing requirements.

[0038] Combined Figure 6 As shown, a gear ring 131 is provided at the end face of the annular cover plate 130 away from the mounting seat 120. The driving mechanism includes a driving motor 170 provided at the mounting plate 151. A gear 180 meshing with the gear ring 131 is provided at the rotating shaft of the driving motor 170. The driving mechanism also includes an external power source for supplying power to the driving motor 170. The control mechanism includes a mounting post 550 provided at the mounting bracket 110. A mounting post blind hole 560 is provided at the upper end of the mounting post 550. A mounting block 610 is fixedly provided at the bottom end of the mounting post blind hole 560. A first magnet 620 is fixedly provided at the upper end of the mounting block 610; A sliding column 630 is also slidably arranged in the blind hole 560 of the mounting column. A second magnet 640 that attracts the first magnet 620 is arranged at the lower end of the sliding column 630. A first conductive ring 650 is arranged on the upper end surface of the mounting block 610. A second conductive ring 660 for contacting the first conductive ring 650 to close the power circuit of the driving motor 170 is arranged at the lower end surface of the sliding column 630. The first conductive ring 650 and the second conductive ring 660 are respectively electrically connected to the driving mechanism through cables. The side wall of the lower end of the sliding column 630 expands outward to form a sliding column lower flange 670 that is in clearance fit with the blind hole 560 of the mounting column. A sliding column spring 680 that is located between the sliding column lower flange 670 and the mounting block 610 and is used to push up the sliding column 630 is arranged in the blind hole 560 of the mounting column. The elastic force of the sliding column spring 680 is less than the magnetic attraction force between the first magnet 620 and the second magnet 640. The control mechanism further includes a connecting rod 690 arranged at the mounting seat 120. A strip-shaped opening 6100 is arranged in the blind hole 560 of the mounting column. The end of the connecting rod 690 passes through the strip-shaped opening 6100 and extends into the blind hole 560 of the mounting column. An insulating sleeve ring 6110 is arranged at the end of the connecting rod 690 that extends into the blind hole 560 of the mounting column. The insulating sleeve ring 6110 is used to press the sliding column lower flange 670 as the mounting seat 120 descends so that the first conductive ring 650 contacts the second conductive ring 660. A sliding column upper flange 6120 is further arranged at the upper end of the sliding column 630. The insulating sleeve ring 6110 is also used to push the sliding column upper flange 6120 as the mounting seat 120 ascends so that the first magnet 620 is separated from the second magnet 640.

[0039] Before filtering the leachate, the lifting spring 530 elongates, pushing the mounting seat 120 to a high position. The connecting rod 690 moves upward accordingly. The insulating sleeve ring 6110 pulls the sliding column upper flange 6120 upward and pushes the sliding column lower flange 670 upward through the sliding column spring 680. The combined force of the two overcomes the magnetic attraction force between the first magnet 620 and the second magnet 640, causing the sliding column 630 to move upward. The first magnet 620 is separated from the second magnet 640, and the first conductive ring 650 is disconnected from the second conductive ring 660.

[0040] During the filtering of the leachate, the weight of the mounting seat 120 increases, causing the lifting spring 530 to compress. The mounting seat 120 descends, and the connecting rod 690 moves downward accordingly. The insulating sleeve ring 6110 presses the sliding column lower flange 670 downward and pulls the sliding column 630 downward through the magnetic attraction force between the first magnet 620 and the second magnet 640, causing the sliding column 630 to move downward. As a result, the first conductive ring 650 contacts the second conductive ring 660, closing the circuit of the driving motor 170 to clean the impurities in the filtering chamber 210.

[0041] After the impurities are discharged, the connecting rod 690 moves upward accordingly. The insulating collar 6110 pulls the upper flange 6120 of the sliding column upward and pushes the lower flange 670 of the sliding column upward through the sliding column spring 680. The combined force of the two overcomes the magnetic attraction force between the first magnet 620 and the second magnet 640, causing the sliding column 630 to move upward, separating the first magnet 620 from the second magnet 640, and disconnecting the first conductive ring 650 from the second conductive ring 660.

[0042] In this embodiment, through the deep coupling of the mechanical structure and the magnetoelectric element, the control logic of the "zero-electron sensor" is realized, solving the problems of easy jamming in traditional mechanical control and easy mis-touch in magnetic control.

[0043] Combined Figure 7 As shown, the number of filter plates 220 at the annular cover plate 130 is 4, the angle between two adjacent filter plates 220 is 90°, the number of water inlet holes 240 is 2 and they are respectively arranged at both ends of the middle part of the mounting seat 120. Combined Figure 7 As shown, the landfill leachate total quantity treatment device further includes a water inlet pipe 710. A two-way pipe 720 is provided at the water inlet pipe 710 and is used to connect with the two water inlet holes 240. The 4 filter plates 220 are respectively located at the upper and lower ends of the two water inlet holes 240; the rotation angle of the annular cover plate 130 between the first conductive ring 650 starts to contact and the first conductive ring 650 is separated from the second conductive ring 660 is 270°.

[0044] By setting the number of filter plates 220 at the annular cover plate 130 to 4, setting the angle between two adjacent filter plates 220 to 90°, and setting the rotation angle of the annular cover plate 130 to 270°, after rotating the annular cover plate 130, the leachate can be filtered by different filter plates 220, avoiding the long-term filtration of the leachate by the same filter plate 220, thus preferably improving the filtration effect on the landfill leachate. And through the setting of the two water inlet holes 240, after several rotations, the filtration of the landfill leachate can be realized by the cooperation of the two water inlet holes 240 and different plate surfaces of the filter plates 220, thus not only preferably improving the filtration effect on the landfill leachate, but also realizing the backwashing of the filter plates 220.

[0045] The specific working principle of the landfill leachate total quantity treatment device in this embodiment is as follows: Before filtering the landfill leachate, the lifting spring 530 elongates, pushing the mounting seat 120 to a high position. The connecting rod 690 moves upward accordingly. The insulating collar 6110 pulls the upper flange 6120 of the sliding column upward and pushes the lower flange 670 of the sliding column upward through the sliding column spring 680. The combined force of the two overcomes the magnetic attraction between the first magnet 620 and the second magnet 640, causing the sliding column 630 to move upward, separating the first magnet 620 from the second magnet 640, and separating the first conductive ring 650 from the second conductive ring 660, thus disconnecting the circuit of the drive motor 170.

[0046] As the filtered impurities in the leachate accumulate on the surface of the filter plate 220 and the inner side of the filter net 230, a filter cake layer is formed, causing the total weight of the mounting seat 120 to gradually exceed the initial elastic force of the lifting spring 530, triggering a downward movement. The mounting seat 120 moves downward along the slide rail 160 through the slider 1110 of the connecting frame 150, and the lifting spring 530 compresses and stores energy. When it descends to a preset position, the insulating collar 6110 at the end of the connecting rod 690 contacts the lower flange 670 of the sliding column. The insulating collar 6110 presses the lower flange 670 of the sliding column, overcoming the elastic force of the sliding column spring 680 to move the sliding column 630 downward. The second magnet 640 attracts the first magnet 620, the second conductive ring 660 fits with the first conductive ring 650, and the circuit of the drive motor 170 is turned on.

[0047] The drive motor 170 drives through the gear 180 and the gear ring 131, driving the annular cover plate 130 to rotate 270°. The 4 filter plates 220 rotate with the annular cover plate 130, pushing the intercepted impurities towards the arc-shaped sewage outlet 260 at the top of the central baffle 330, and the impurities slide into the collection box along the inclination of the guide plate 140.

[0048] After the impurities are discharged, the weight of the mounting seat 120 decreases, and the lifting spring 530 releases its elastic force, pushing the mounting plate 151 to rise and reset along the slide rail 160. When the mounting seat 120 rises, the insulating collar 6110 pushes the upper flange 6120 of the sliding column, causing the sliding column 630 to move upward against the magnetic attraction. The second magnet 640 disengages from the first magnet (620), the second conductive ring 660 separates from the first conductive ring 650, the drive motor 170 stops rotating, and the device returns to the initial state, waiting for the next accumulation of impurities to trigger.

[0049] In summary, the above is only the preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention shall fall within the scope covered by the patent of the present invention.

Claims

1. A device for fully quantifying the treatment of landfill leachate, characterized in that: It includes an installation bracket (110). A filtering mechanism for filtering leachate is provided at the installation bracket (110). The filtering mechanism can slide along the height direction of the installation bracket (110). An elastic mechanism for jacking up the filtering mechanism is provided at the installation bracket (110). The filtering mechanism includes a one-way open mounting seat (120) and an annular cover plate (130) abutted against the mounting seat (120). A circular filtering cavity (210) is jointly formed between the annular cover plate (130) and the mounting seat (120). A filter plate (220) arranged radially along it and used for filtering leachate is provided at the annular cover plate (130). A filter net (230) arranged circumferentially along its edge is provided at the edge of the annular cover plate (130). A water inlet hole (240) communicating with the filtering cavity (210) is provided in the middle of the mounting seat (120). A drain port (250) for discharging the filtered leachate is provided at the bottom end of the mounting seat (120). A sewage discharge port (260) is provided at the upper end of the filtering cavity (210). A guide plate (140) located below the sewage discharge port (260) is provided at the mounting seat (120). It further includes a driving mechanism. The driving mechanism includes a driving motor (170). The driving mechanism is used to drive the annular cover plate (130) to rotate so that the filter plate (220) scrapes the impurities in the filtering cavity (210) to the sewage discharge port (260) for discharge. It further includes a control mechanism. The control mechanism is used to connect the circuit of the driving motor (170) to make the driving mechanism work when the mounting seat (120) descends to a specified position.

2. The full - quantification treatment device for landfill leachate according to claim 1, wherein: The mounting seat (120) includes a circular bottom plate (310). An outer side enclosing plate (320) perpendicular to the bottom plate (310) is provided at the edge of the bottom plate (310). A circular center enclosing plate (330) which is in clearance fit with the inner wall of the annular cover plate (130) is provided in the middle of the bottom plate (310). The water inlet hole (240) is arranged at the bottom plate (310). The drain port (250) is arranged at the bottom end of the outer side enclosing plate (320). A surrounding plate opening (340) is opened at the top end of the center enclosing plate (330) to form the sewage discharge port (260).

3. The full - quantification treatment device for landfill leachate according to claim 1, wherein: A connecting frame (150) is provided at the mounting seat (120). The connecting frame (150) includes a mounting plate (151) arranged at the lower end of the mounting seat (120). A connecting plate (152) connected to the side wall of the mounting seat (120) is provided on the upper end surface of the mounting plate (151). A slide rail (160) arranged along the height direction of the installation bracket (110) is provided at the installation bracket (110). A slider (1110) matched with the slide rail (160) is provided at the connecting frame (150).

4. The full-quantification treatment device for landfill leachate according to claim 3, wherein: The elastic mechanism includes a threaded column (510) disposed at the mounting bracket (110) and below the mounting plate (151). A threaded column blind hole (520) is provided in the threaded column (510). A smooth shaft (350) that is in clearance fit with the threaded column blind hole (520) and extends into the threaded column blind hole (520) is provided at the bottom end surface of the mounting plate (151). A lifting spring (530) for jacking up the mounting plate (151) is sleeved on the threaded column (510). An adjusting nut (540) for adjusting the compression amount of the lifting spring (530) is also provided at the threaded column (510).

5. The full-quantification treatment device for landfill leachate according to claim 3, wherein: A gear ring (131) is provided at the end face of the annular cover plate (130) away from the mounting seat (120). The driving mechanism includes a driving motor (170) disposed at the mounting plate (151). A gear (180) meshing with the gear ring (131) is provided at the rotating shaft of the driving motor (170). The driving mechanism further includes an external power source for supplying power to the driving motor (170).

6. The full - quantification treatment device for landfill leachate according to claim 5, characterized in that: The control mechanism includes a mounting post (550) disposed at the mounting bracket (110). A mounting post blind hole (560) is provided at the upper end of the mounting post (550). A mounting block (610) is fixedly provided at the bottom end of the mounting post blind hole (560). A first magnetic block (620) is fixedly provided at the upper end of the mounting block (610). A sliding post (630) is also slidably provided in the mounting post blind hole (560). A second magnetic block (640) attracting the first magnetic block (620) is provided at the lower end of the sliding post (630). A first conductive ring (650) is provided at the upper end face of the mounting block (610). A second conductive ring (660) for contacting the first conductive ring (650) to close the power supply circuit of the driving motor (170) is provided at the lower end face of the sliding post (630). The first conductive ring (650) and the second conductive ring (660) are respectively electrically connected to the driving mechanism through cables; A sliding post lower flange (670) that is in clearance fit with the mounting post blind hole (560) is formed by outward expansion of the side wall of the lower end of the sliding post (630). A sliding post spring (680) for jacking up the sliding post (630) is provided in the mounting post blind hole (560) between the sliding post lower flange (670) and the mounting block (610). The elastic force of the sliding post spring (680) is less than the magnetic attraction force between the first magnetic block (620) and the second magnetic block (640); The control mechanism further includes a connecting rod (690) disposed at the mounting seat (120). A strip-shaped opening (6100) is provided in the blind hole of the mounting post (560). The end of the connecting rod (690) passes through the strip-shaped opening (6100) and extends into the blind hole of the mounting post (560). An insulating collar (6110) is provided at the end of the connecting rod (690) extending into the blind hole of the mounting post (560). The insulating collar (6110) is used to press the lower flange (670) of the sliding column as the mounting seat (120) descends so that the first conductive ring (650) contacts the second conductive ring (660); an upper flange (6120) of the sliding column (630) is further provided at the upper end of the sliding column (630). The insulating collar (6110) is also used to push the upper flange (6120) of the sliding column as the mounting seat (120) ascends so that the first magnet (620) disengages from the second magnet (640).

7. A full-quantification treatment device for landfill leachate according to claim 6, characterized in that: The number of filter plates (220) at the annular cover plate (130) is 4. The angle between two adjacent filter plates (220) is 90°. The number of water inlet holes (240) is 2 and they are respectively arranged at both ends of the middle part of the mounting seat (120). The 4 filter plates (220) are respectively located at the upper and lower ends of the two water inlet holes (240); the rotation angle of the annular cover plate (130) between the start of contact between the first conductive ring (650) and the second conductive ring (660) and the disengagement of contact between the first conductive ring (650) and the second conductive ring (660) is 270°.

8. The full-quantification treatment device for landfill leachate according to claim 7, wherein: It further includes a water inlet pipe (710). A two-way pipe (720) is provided at the water inlet pipe (710). The two-way pipe (720) is used to connect to the two water inlet holes (240).

9. The full - quantification treatment device for landfill leachate according to claim 3, characterized in that: A baffle (190) for abutting the annular cover plate (130) against the mounting seat (120) is bolted at the central enclosing plate (330).

10. A full-quantification treatment device for landfill leachate according to claim 1, characterized in that: A drain pipe (1100) is provided at the lower end of the drain port (250).

Images