Landfill leachate collecting and treating device

Abstract

The invention discloses a landfill leachate collection and treatment device, and relates to the technical field of sewage treatment.The landfill leachate collection and treatment device is characterized in that a driving mechanism drives an aeration mechanism to rotate through gear meshing and drives a rotating ring to rotate around the outer wall of a filter plate B, so that the bottom end of a decanting pipe rotates along with the rotating ring, the top end is limited by a fixed ring sliding hole to horizontally move, and the inclination angle and the top end height are changed; a dynamic water decanting structure is formed, and the multi-layer collection of the landfill leachate is realized. When the decanting pipes rotate and gather, an impurity concentration state is formed, the aeration mechanism performs aeration, gas rises along the inclined decanting pipes, and contact between organic matters and microorganisms and dissolved oxygen is enhanced; when the decanting pipe rotates and disperses, an impurity dispersion state is formed, and dissolved oxygen is uniformly distributed. The water decanting and aeration processes are controlled in a linkage mode through the driving mechanism, the problems that a traditional device is insufficient in water decanting flexibility, cannot achieve multi-layer collection and is low in aeration efficiency are solved, selective collection of different water layers and uniform distribution of dissolved oxygen are achieved, and the treatment quality and efficiency of landfill leachate are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and more specifically, to a device for collecting and treating landfill leachate. Background Art

[0002] Landfill leachate is highly polluted wastewater generated during the stacking, landfill, or treatment of garbage. Its composition is complex, containing high concentrations of organic matter, ammonia nitrogen, heavy metals, and a large amount of suspended solids and other pollutants. If directly discharged without effective treatment, it will cause serious pollution to the surrounding soil, water bodies, and atmospheric environment, threatening the ecological balance and human health.

[0003] Most decanting mechanisms are in a fixed form. This structure lacks flexibility and is difficult to adaptively adjust according to the changes in the leachate level and water quality. In practical applications, the leachate level fluctuates frequently. The fixed decanting mechanism cannot accurately control the water collection height, easily resulting in a large amount of bottom sediment or suspended solids being mixed into the collected leachate, seriously affecting the subsequent treatment effect, increasing the treatment cost and difficulty. Some decanting mechanisms achieve decanting by following the liquid buoyancy. Although they can adapt to the water level change to a certain extent, they can only collect the top-layer clarified filtrate. However, the water quality of landfill leachate varies vertically, and the top-layer filtrate is not the most suitable for collection and treatment in all cases. The inability to achieve multi-layer collection of the top-layer filtrate limits the optimization selection of the leachate water quality and is difficult to meet the complex and changeable leachate treatment requirements.

[0004] In the aeration treatment link, traditional aeration methods also expose many drawbacks when treating landfill leachate. Due to the high content and concentration of impurities in landfill leachate, the bubbles generated by traditional aeration methods are extremely vulnerable to obstruction and interference by impurities during the rising process and cannot float evenly. This makes the dissolved oxygen distribution in the aeration area uneven, resulting in waste of energy in some areas with excessive dissolved oxygen, insufficient dissolved oxygen in some areas, affecting the activity and metabolic efficiency of aerobic microorganisms, leading to incomplete degradation of pollutants, extremely poor aeration efficiency, and further affecting the stable operation and treatment effect of the entire landfill leachate treatment system. In view of this, we propose a device for collecting and treating landfill leachate. Summary of the Invention

[0005] The purpose of the present invention is to provide a device for collecting and treating landfill leachate to solve the technical problem of poor treatment effect of existing landfill leachate.

[0006] To solve the above technical problems, the present invention provides the following technical solution: A garbage leachate collection and treatment device, including a sedimentation tank, a cover plate is provided at the top of the sedimentation tank, a fixed middle rod is inserted at the position of the axis inside the sedimentation tank, a filter plate A is fixedly sleeved at the top of the fixed middle rod, a fixed ring is sleeved on the outer wall of the filter plate, a filter plate B is sleeved at the bottom of the sedimentation tank, a rotating ring is rotatably sleeved on the outer wall of the filter plate B, and drain pipes are rotatably inserted at equal intervals in a ring shape on the rotating ring. One end of the drain pipe away from the rotating ring is movably inserted on the fixed ring. A bottom frame is rotatably connected to the bottom of the rotating ring, and a driving mechanism is provided on the bottom frame; The driving mechanism meshes and drives the aeration mechanism to rotate, the aeration mechanism drives the rotating ring to rotate, causing several groups of the drain pipes to rotate, and one end of the drain pipe movably inserted on the fixed ring rises or falls horizontally, forming a dynamic water decantation structure to achieve multi-layer collection of garbage leachate; Several groups of the drain pipes rotate and gather to form a state of concentrated impurities. At this time, the aeration mechanism aerates, and the gas rises along the inclined drain pipes, strengthening the contact between the organic matter and microorganisms in the garbage leachate in the sedimentation tank and dissolved oxygen. Several groups of the drain pipes rotate and disperse to form a state of dispersed impurities, evenly distributing the dissolved oxygen.

[0007] Preferably, sliding holes are provided at equal intervals in a ring shape on the fixed ring, and the top ends of the drain pipes are movably inserted into the sliding holes.

[0008] Preferably, rotating grooves are provided at equal intervals in a ring shape on the rotating ring, the bottom ends of the drain pipes are rotatably inserted into the rotating grooves, through grooves are provided at equal intervals in a ring shape inside the rotating ring, several of the rotating grooves are communicated through the through grooves, and a water outlet hole is provided on the outer wall of the rotating ring, and the water outlet hole is communicated with one of the rotating grooves.

[0009] Preferably, the drain pipe includes a pipe body, a water decantation port, a ball head and a clear liquid cavity. The ball head is rotatably inserted into the rotating groove, the pipe body is fixedly connected to the ball head, the water decantation port is provided at one end of the pipe body away from the ball head, the clear liquid cavity is provided inside the pipe body, and the pipe body, the water decantation port and the ball head are internally communicated.

[0010] Preferably, the aeration mechanism includes a rotating frame, a linkage gear, an internal gear and an aeration component. The rotating frame is rotatably arranged on the bottom frame, the outer wall of the rotating frame is meshed and connected to the output end of the driving mechanism, the linkage gear is rotatably arranged on the rotating frame, the internal gears are rotatably inserted at equal intervals in a ring shape on the bottom frame, one of the internal gears passes through the bottom frame and is connected to a motor, the aeration components are slidably inserted at equal intervals in a ring shape on the rotating frame, the linkage gear is meshed and connected with several of the internal gears, and the top ends of the internal gears are meshed and connected to the aeration components.

[0011] Preferably, a rotation groove is formed at the bottom end of the rotary frame, the linkage gear is rotatably connected to the rotation groove, a plurality of sliding grooves are formed at equal intervals in a ring shape at the top end of the rotary frame, the aeration assembly is slidably inserted into the sliding grooves, an external tooth groove is arranged at the bottom end of the outer wall of the rotary frame, and the external tooth groove is meshed and connected to the output end of the driving mechanism.

[0012] Preferably, the aeration assembly comprises a rack and an aeration block, the rack is slidably inserted into the sliding groove, the aeration block is fixedly arranged at the top end of the rack, the output end of the aeration block is movably arranged at the bottom of the sedimentation tank, and the input end of the aeration block is connected to the air supply mechanism through a hose.

[0013] Preferably, an air cavity is formed inside the aeration block, an air inlet hole is arranged at one end of the aeration block, and an air outlet hole is formed on the top surface at the other end of the aeration block. The air supply mechanism inputs gas into the air inlet hole through the hose and discharges the gas from the air outlet hole through the air cavity.

[0014] Preferably, a plurality of groups of friction rollers are rotatably arranged at the position of the top end of the aeration block close to the air outlet hole, the top ends of the friction rollers are in contact with the bottom end of the filter plate B, the motor drives one of the internal gears to rotate, the internal gear meshes with the linkage gear to rotate, the linkage gear drives a plurality of internal gears to rotate synchronously, the internal gear meshes with the rack to drive the aeration block to move, and the movement of the aeration block causes the friction rollers to rub the filter plate B.

[0015] Preferably, a through hole is formed at the position of the center of the bottom frame, the fixed middle rod is inserted into the through hole, and a sludge discharge pipe is further arranged at the bottom end of the bottom frame.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The driving mechanism of the present invention drives the rotation of the aeration mechanism through gear meshing, drives the rotating ring to rotate around the outer wall of the filter plate B, enables the bottom end of the decanting water pipe to rotate with the rotating ring and the top end to horizontally move under the limitation of the sliding hole of the fixed ring, changes the inclination angle and the height of the top end, forms a dynamic decanting water structure, and realizes the multi-layer collection of the landfill leachate.

[0017] 2. The present invention also forms a state of impurity concentration when the decanting water pipe rotates and gathers, and the aeration mechanism aerates, and the gas rises along the inclined decanting water pipe, strengthening the contact between organic matters and microorganisms and dissolved oxygen; when the decanting water pipe rotates and scatters, a state of impurity dispersion is formed, and the dissolved oxygen is evenly distributed. The present invention controls the decanting water and aeration processes through the linkage of the driving mechanism, solves the problems of insufficient flexibility of decanting water, inability to collect in multiple layers and low aeration efficiency of the traditional device, realizes the selective collection of different water layers and the uniform distribution of dissolved oxygen, and improves the treatment quality and efficiency of the landfill leachate.

[0018] 3. In the present invention, the aeration component is slidably connected to the chute of the rotating frame through a rack. When the internal gear rotates, the top tooth surface thereof meshes with the rack, driving the rack to slide radially along the chute, and then driving the aeration block fixed to the top of the rack to move synchronously. The air supply mechanism conveys gas to the input end of the aeration block through a hose, and the gas is released from the output end through the internal flow channel of the aeration block, forming bubbles at the bottom of the sedimentation tank to achieve aeration treatment of the leachate. The sliding of the aeration block along with the rack can dynamically adjust the aeration position, and in cooperation with the rotation of the rotating frame, it realizes aeration coverage and uniform air distribution within the entire pool.

[0019] 4. In the present invention, since a number of friction rollers are provided at the position of the top of the aeration block close to the air outlet, and the top of the friction roller remains in contact with the bottom end of the filter plate B, during the movement of the aeration block, the friction rollers roll accordingly, and by generating relative friction with the bottom surface of the filter plate B, continuously scrape the impurities, sludge, etc. attached to the bottom surface of the filter plate B, realizing automatic cleaning of the filter plate B. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall external structure of the present invention.

[0021] Figure 2 It is a schematic diagram of the internal front view structure of the sedimentation tank section of the present invention.

[0022] Figure 3 It is a schematic diagram of the internal structure of the sedimentation tank section of the present invention.

[0023] Figure 4 It is a schematic diagram of the dynamic decanting structure of the present invention and Figure 3 comparative diagram.

[0024] Figure 5 It is a schematic diagram of the filter plate A, fixed ring and decanting pipe structure of the present invention.

[0025] Figure 6 It is a schematic diagram of the split structure of the fixed middle rod, filter plate A and fixed ring of the present invention.

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the decanting pipe of the present invention.

[0027] Figure 8 It is a schematic diagram of the cross-sectional structure of the rotating ring of the present invention.

[0028] Figure 9 It is a schematic diagram of the filter plate B, rotating ring and aeration mechanism structure of the present invention.

[0029] Figure 10 It is a schematic diagram of the split structure of the aeration mechanism of the present invention.

[0030] Figure 11 It is a schematic diagram of the cross-sectional structure of the rotating frame of the present invention.

[0031] Figure 12 This is a schematic cross-sectional structure diagram of the aeration block of the present invention.

[0032] Figure 13 This is a schematic diagram of the impurity concentration state of the water decanting pipe and the cooperation of the aeration assembly of the present invention.

[0033] Figure 14 This is a schematic diagram of the impurity dispersion state of the water decanting pipe and the cooperation of the aeration assembly of the present invention.

[0034] Explanation of the reference numerals in the figure: 1. Sedimentation tank; 2. Cover plate; 3. Fixed middle rod; 4. Filter plate A; 5. Fixed ring; 6. Filter plate B; 7. Rotating ring; 8. Water decanting pipe; 9. Aeration mechanism; 10. Underframe; 11. Driving mechanism; 501. Slide hole; 701. Rotating groove; 702. Through groove; 703. Water outlet hole; 801. Pipe body; 802. Water decanting port; 803. Ball head; 804. Clear liquid cavity; 901. Rotating frame; 902. Linkage gear; 903. Internal gear; 904. Aeration assembly; 9011. Spiral groove; 9012. Slide groove; 9013. External tooth groove; 9041. Rack; 9042. Aeration block; 9043. Air cavity; 9044. Air inlet hole; 9045. Air outlet hole; 9046. Friction roller; 1001. Perforation; 1002. Silt discharge pipe. Specific embodiments

[0035] As Figures 1 to 14 shown, a garbage leachate collection and treatment device related to the present invention includes a sedimentation tank 1, a cover plate 2 is provided at the top of the sedimentation tank 1, a fixed middle rod 3 is inserted at the position of the axis inside the sedimentation tank 1, a filter plate A 4 is fixedly sleeved at the top of the fixed middle rod 3, a fixed ring 5 is sleeved on the outer wall of the filter plate A 4, a filter plate B 6 is sleeved at the bottom of the sedimentation tank 1, a rotating ring 7 is rotatably sleeved on the outer wall of the filter plate B 6, a plurality of water decanting pipes 8 are rotatably inserted at equal intervals in a ring shape on the rotating ring 7, one end of the water decanting pipe 8 away from the rotating ring 7 is movably inserted on the fixed ring 5, a driving mechanism 11 is provided on the underframe 10 which is rotatably connected to the bottom of the aeration mechanism 9; The driving mechanism 11 meshes and drives the aeration mechanism 9 to rotate, the aeration mechanism 9 drives the rotating ring 7 to rotate, causing a plurality of groups of water decanting pipes 8 to rotate, and one end of the water decanting pipe 8 movably inserted on the fixed ring 5 rises or falls horizontally, forming a dynamic water decanting structure to realize the multi-layer collection of garbage leachate; Several groups of decanting pipes 8 rotate and gather to form a state where impurities are concentrated. At this time, aeration is carried out through the aeration mechanism 9, and the gas rises along the inclined decanting pipes 8, strengthening the contact between the organic matter and microorganisms in the landfill leachate in the sedimentation tank 1 and dissolved oxygen. Several groups of decanting pipes 8 rotate and disperse to form a state where impurities are dispersed, evenly distributing the dissolved oxygen.

[0036] In the present invention, the driving mechanism 11 drives the aeration mechanism 9 to rotate through gear meshing, and the rotating frame 901 at the bottom of the aeration mechanism 9 rotates synchronously, thereby driving the rotating ring 7 to rotate around the outer wall of the filter plate B6. When the rotating ring 7 rotates, the bottom end of the decanting pipe 8 rotates with the rotating ring 7, and the top end is restricted by the sliding hole 501 of the fixed ring 5 and can only move horizontally, resulting in a change in the overall inclination angle of the decanting pipe 8 and at the same time a change in the height of the top end of the decanting pipe 8. The decanting port 802 sucks in the filtrate at the corresponding height, passes through the clear liquid cavity 804, the ball head 803 and the rotating groove 701, and is discharged from the water outlet hole 703 through the through groove 702 to complete the stratified collection.

[0037] As Figure 3 and Figure 13 shown, when the decanting pipes 8 rotate and gather to concentrate the impurities in the landfill leachate, at this time the aeration mechanism 9 operates, and the gas is guided through several inclined decanting pipes 8 to conduct centralized treatment on the part where impurities are concentrated, preventing excessive dissolved oxygen in some areas from causing energy waste and insufficient dissolved oxygen in some areas, making it impossible to achieve efficient contact between organic matter and microorganisms; See Figure 4 and Figure 14 , when sufficient aeration is carried out and the microorganisms oxidize and decompose the organic matter in the leachate under the condition of sufficient dissolved oxygen, the decanting pipes 8 rotate and disperse, evenly distributing and diffusing, facilitating subsequent sedimentation.

[0038] In the embodiment of the present invention, sliding holes 501 are arranged at equal intervals in a ring shape on the fixed ring 5, and the top ends of the decanting pipes 8 are movably inserted into the sliding holes 501.

[0039] The sliding holes 501 opened on the fixed ring 5 in the present invention and the top ends of the decanting pipes 8 form a sliding connection structure. When the rotating ring 7 drives the bottom end of the decanting pipe 8 to rotate, since the top end of the decanting pipe 8 is movably inserted into the sliding hole 501, the sliding hole 501 plays a guiding and limiting role in the horizontal movement of the top end of the decanting pipe 8. During the rotation of the rotating ring 7, the bottom end of the decanting pipe 8 makes a circular motion, while its top end is restricted by the sliding hole 501 and can only perform horizontal sliding within the range allowed by the sliding hole 501, thereby causing a change in the overall inclination angle of the decanting pipe 8 and at the same time realizing a change in the height of the top end of the decanting pipe 8, providing a mechanical structure basis for dynamically adjusting the decanting height.

[0040] In an embodiment of the present invention, rotation grooves 701 are provided at equal intervals in a ring shape on the swivel ring 7. The bottom end of the decanting pipe 8 is rotatably inserted into the rotation groove 701. Through grooves 702 are provided at equal intervals in a ring shape inside the swivel ring 7. A plurality of rotation grooves 701 are communicated through the through grooves 702. An outlet hole 703 is provided on the outer wall of the swivel ring 7, and the outlet hole 703 is communicated with one of the rotation grooves 701.

[0041] In the present invention, the rotation groove 701 on the swivel ring 7 provides a rotational connection basis for the bottom end of the decanting pipe 8, enabling the decanting pipe 8 to adjust its angle with the rotation groove 701 as a fulcrum. When the decanting pipe 8 rotates, its bottom end can rotate flexibly within the rotation groove 701, realizing the change of the overall inclination angle of the decanting pipe 8. The through grooves 702 communicate a plurality of rotation grooves 701 with each other, constructing an internal channel network for the filtrate to flow through. The leachate collected by the decanting pipe 8 flows into the rotation groove 701 through its internal cavity, and then, by utilizing the connectivity of the through grooves 702, it is transmitted and collected inside the swivel ring 7. The outlet hole 703 is connected to one of the rotation grooves 701 and serves as the outlet for the leachate to flow out of the swivel ring 7. The leachate collected through the through grooves 702 finally discharges from the outlet hole 703, realizing the whole process of collection, transmission, and export of the leachate within the swivel ring 7.

[0042] In an embodiment of the present invention, the decanting pipe 8 includes a pipe body 801, a decanting port 802, a ball head 803, and a clear liquid cavity 804. The ball head 803 is rotatably inserted into the rotation groove 701. The pipe body 801 is fixedly connected to the ball head 803. The decanting port 802 is provided at one end of the pipe body 801 away from the ball head 803. The clear liquid cavity 804 is provided inside the pipe body 801, and the inside of the pipe body 801, the decanting port 802, and the ball head 803 are communicated with each other.

[0043] In the present invention, the decanting pipe 8 forms a rotational connection with the rotation groove 701 of the swivel ring 7 through the ball head 803, providing a basis for the multi-angle flexible rotation of the decanting pipe 8. When the decanting pipe 8 rotates under the action of an external force, the ball head 803 can rotate freely within the rotation groove 701, driving the pipe body 801 to adjust its inclination angle. The clear liquid cavity 804 inside the pipe body 801 constitutes a filtrate transmission channel. The decanting port 802 serves as the inlet for the leachate and is provided at one end of the pipe body 801 away from the ball head 803. During operation, the decanting port 802 is directly in contact with the leachate in the sedimentation tank, and by utilizing the water level difference and liquid flow pressure, the leachate at the corresponding height is sucked into the clear liquid cavity 804. The sucked leachate is transmitted downward through the clear liquid cavity 804 and is discharged from the decanting pipe 8 through the structure communicated with the inside of the ball head 803, preparing for the subsequent discharge through the swivel ring 7.

[0044] In an embodiment of the present invention, the aeration mechanism 9 includes a rotating frame 901, a linkage gear 902, an internal gear 903, and an aeration assembly 904. The rotating frame 901 is rotatably arranged on the chassis 10, the outer wall of the rotating frame 901 is meshed and connected to the output end of the driving mechanism 11, the linkage gear 902 is rotatably arranged on the rotating frame 901, the internal gear 903 is rotatably inserted into the chassis 10 at equal intervals in a ring shape, and one of the internal gears 903 passes through the chassis 10 and is connected to the motor. The aeration assembly 904 is slidably inserted into the rotating frame 901 at equal intervals in a ring shape. The linkage gear 902 is meshed and connected to a plurality of internal gears 903, and the top end of the internal gear 903 is meshed and connected to the aeration assembly 904.

[0045] In the present invention, the aeration assembly 904 is slidably inserted into the rotating frame 901, and its bottom is meshed with the top end of the internal gear 903. When the internal gear 903 rotates, the aeration assembly 904 is pushed to slide radially on the rotating frame 901 through the acting force between the teeth, so that the aeration assembly 904 realizes position adjustment while rotating, thereby changing the aeration position and range, and providing a dynamic aeration effect for the garbage leachate in the sedimentation tank.

[0046] As another embodiment of the present invention, a rotating groove 9011 is provided at the bottom end of the rotating frame 901, the linkage gear 902 is rotatably connected to the rotating groove 9011, a plurality of sliding grooves 9012 are provided at the top end of the rotating frame 901 at equal intervals in a ring shape, the aeration assembly 904 is slidably inserted into the sliding grooves 9012, and an external tooth groove 9013 is provided at the bottom end of the outer wall of the rotating frame 901, and the external tooth groove 9013 is meshed and connected to the output end of the driving mechanism 11.

[0047] In the present invention, the rotating frame 901 provides a rotating support for the linkage gear 902 through the rotating groove 9011 at the bottom end, so that the linkage gear 902 can rotate flexibly in the rotating groove, ensuring the meshing transmission stability with the internal gear 903. The sliding groove 9012 at the top end provides a sliding track for the aeration assembly 904, so that the aeration assembly 904 can reciprocate in the sliding groove along the radial direction of the rotating frame, realizing the dynamic adjustment of the aeration position. The external tooth groove 9013 at the bottom end of the outer wall is meshed with the output end of the driving mechanism 11. When the driving mechanism operates, the whole rotating frame 901 is driven to rotate through the tooth-by-tooth transmission of the external tooth groove.

[0048] As another embodiment of the present invention, the aeration assembly 904 includes a rack 9041 and an aeration block 9042. The rack 9041 is slidably inserted into the sliding groove 9012, the aeration block 9042 is fixedly arranged at the top end of the rack 9041, the output end of the aeration block 9042 is movably arranged at the bottom of the sedimentation tank 1, and the input end of the aeration block 9042 is connected to the air supply mechanism through a hose.

[0049] In the present invention, the aeration assembly 904 forms a sliding connection structure with the chute 9012 of the rotating frame 901 through the rack 9041. When the internal gear 903 rotates, the top tooth surface thereof meshes with the rack 9041, driving the rack 9041 to slide radially along the chute 9012, and further driving the aeration block 9042 fixed at the top of the rack to move synchronously. The air supply mechanism conveys gas to the input end of the aeration block 9042 through a hose, and the gas is released from the output end through the internal flow channel of the aeration block 9042, forming bubbles at the bottom of the sedimentation tank 1 to achieve aeration treatment of the leachate. The aeration position of the aeration block 9042 can be dynamically adjusted with the sliding of the rack 9041, and in cooperation with the rotation of the rotating frame 901, aeration coverage and uniform gas distribution within the entire pool are achieved.

[0050] In an embodiment of the present invention, an air cavity 9043 is provided inside the aeration block 9042. An air inlet hole 9044 is provided at one end of the aeration block 9042, and an air outlet hole 9045 is provided on the top surface of the other end of the aeration block 9042. The air supply mechanism inputs gas into the air inlet hole 9044 through a hose and discharges it from the air outlet hole 9045 through the air cavity 9043.

[0051] In the present invention, the aeration block 9042 constructs a gas transmission channel through the internal air cavity 9043. The air supply mechanism inputs gas from the air inlet hole 9044 through a hose. After the gas is temporarily stored and evenly distributed in the air cavity 9043, it is discharged from the air outlet hole 9045 on the top surface of the other end. This structure utilizes the volume buffering effect of the air cavity 9043 to stabilize the gas output pressure. At the same time, through the directional opening of the air outlet hole 9045, the bubbles are released vertically or obliquely upward, precisely controlling the rising trajectory of the bubbles in the sedimentation tank to ensure uniform diffusion of dissolved oxygen during aeration.

[0052] As another embodiment of the present invention, several groups of friction rollers 9046 are rotatably provided at the position near the air outlet hole 9045 at the top of the aeration block 9042. The top of the friction rollers 9046 contacts the bottom end of the filter plate B6. The motor drives one of the internal gears 903 to rotate. The internal gear 903 meshes with and drives the linkage gear 902 to rotate. The linkage gear 902 drives several internal gears 903 to rotate synchronously. The internal gear 903 meshes with the rack 9041 to drive the aeration block 9042 to move, and the movement of the aeration block 9042 causes the friction rollers 9046 to rub against the filter plate B6.

[0053] In the present invention, the motor drives one of the internal gears 903 to rotate. This internal gear 903 drives the linkage gear 902 to rotate by meshing with it, and further causes several internal gears 903 to rotate synchronously. The rotating internal gear 903 meshes with the rack 9041, driving the rack 9041 to slide along the chute 9012 of the rotating frame 901, thereby driving the aeration block 9042 fixed at the top of the rack 9041 to move.

[0054] In the present invention, several groups of friction rollers 9046 are provided at a position near the air outlet 9045 at the top end of the aeration block 9042, and the top ends of the friction rollers 9046 are in contact with the bottom end of the filter plate B6. Therefore, during the movement of the aeration block 9042, the friction rollers 9046 roll accordingly, and through the relative friction generated with the bottom surface of the filter plate B6, the impurities, sludge, etc. attached to the bottom surface of the filter plate B6 are continuously scraped, realizing the automatic cleaning of the filter plate B6.

[0055] As another embodiment of the present invention, a perforation 1001 is provided at the position of the axis on the chassis 10, and the fixed middle rod 3 is inserted into the perforation 1001. A sludge discharge pipe 1002 is further provided at the bottom end of the chassis 10.

[0056] In the present invention, the perforation 1001 at the axis of the chassis 10 provides installation positioning for the fixed middle rod 3. After the fixed middle rod 3 is inserted into the perforation 1001, it can stably support the internal structure of the sedimentation tank 1, ensuring that components such as the filter plate A4 and the fixed ring 5 are in a central fixed state, maintaining the overall stability of the device. At the same time, the sludge discharge pipe 1002 at the bottom end of the chassis 10 serves as a discharge channel for the sedimented sludge. When the sludge deposited at the bottom of the sedimentation tank 1 reaches a certain amount, the sludge discharge pipe 1002 is opened, and under the action of gravity or an applied pressure, the sludge at the bottom of the tank is discharged through the sludge discharge pipe 1002, realizing the regular cleaning of the sludge in the device.

[0057] Working principle: This embodiment provides a garbage leachate collection and treatment device. When in use, first, the driving mechanism 11 drives the rotation of the rotating frame 901 of the aeration mechanism 9 through gear meshing, and the rotating frame 901 drives the rotating ring 7 to rotate around the outer wall of the filter plate B6; when the rotating ring 7 rotates, the bottom end of the decanting pipe 8 rotates with the rotating ring 7, and its top end is restricted by the sliding hole 501 of the fixed ring 5 and can only move horizontally, resulting in a change in the inclination angle and the height of the top end of the decanting pipe 8. The decanting port 802 sucks the filtrate at the corresponding height, and after passing through the clear liquid cavity 804, the ball head 803, the rotating groove 701, and the through groove 702, it is discharged from the water outlet hole 703 of the rotating ring 7, realizing multi-layer collection; When the decanting pipes 8 rotate and gather, a state of impurity concentration is formed. The aeration block 9042 of the aeration mechanism 9 inputs gas through the air inlet hole 9044, and the gas is discharged from the air outlet hole 9045 through the air cavity 9043. The gas rises along the inclined decanting pipe 8 to enhance the contact of dissolved oxygen; when the decanting pipes 8 rotate and disperse, the aeration block 9042 moves to evenly distribute the dissolved oxygen; at the same time, when the aeration block 9042 moves, the friction rollers 9046 at its top end friction the filter plate B6 to achieve cleaning, and the sludge at the bottom of the sedimentation tank is discharged through the sludge discharge pipe 1002 of the chassis 10.

[0058] The embodiments disclosed in the present invention are the preferred embodiments, but are not limited thereto. Those of ordinary skill in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes, but as long as they do not depart from the spirit of the present invention, they are within the protection scope of the present invention.

Claims

1. A garbage leachate collection and treatment device, characterized in that, It includes a sedimentation tank. A cover plate is provided at the top of the sedimentation tank. A fixed middle rod is inserted at the position of the axis inside the sedimentation tank. A filter plate A is fixedly sleeved at the top of the fixed middle rod. A fixed ring is sleeved on the outer wall of the filter plate. A filter plate B is sleeved at the bottom of the sedimentation tank. A rotating ring is rotatably sleeved on the outer wall of the filter plate B. Decanting pipes are rotatably inserted at equal intervals in a ring shape on the rotating ring. One end of the decanting pipe away from the rotating ring is movably inserted on the fixed ring. A bottom frame is rotatably connected to the bottom end of the rotating ring. A driving mechanism is provided on the bottom frame. The driving mechanism meshes and drives the aeration mechanism to rotate. The aeration mechanism drives the rotating ring to rotate, causing several groups of the decanting pipes to rotate. One end of the decanting pipe movably inserted on the fixed ring rises or falls horizontally, forming a dynamic decanting structure to achieve multi-layer collection of leachate. Several groups of the decanting pipes rotate and gather to form a state of concentrated impurities. At this time, the aeration mechanism aerates, and the gas rises along the inclined decanting pipes, strengthening the contact between the organic matter and microorganisms in the leachate in the sedimentation tank and dissolved oxygen. Several groups of the decanting pipes rotate and disperse to form a state of dispersed impurities, evenly distributing the dissolved oxygen.

2. The garbage leachate collection and treatment device according to claim 1, characterized in that Sliding holes are provided at equal intervals in a ring shape on the fixed ring. The top end of the decanting pipe is movably inserted on the sliding holes.

3. The garbage leachate collection and treatment device according to claim 2, characterized in that, Rotating grooves are provided at equal intervals in a ring shape on the rotating ring. The bottom end of the decanting pipe is rotatably inserted on the rotating grooves. Through grooves are provided at equal intervals in a ring shape inside the rotating ring. Several of the rotating grooves are communicated through the through grooves. A water outlet hole is provided on the outer wall of the rotating ring, and the water outlet hole is communicated with one of the rotating grooves.

4. A garbage leachate collection and treatment device according to claim 3, characterized in that, The decanting pipe includes a pipe body, a decanting water port, a ball head and a clear liquid cavity. The ball head is rotatably inserted on the rotating groove. The pipe body is fixedly connected to the ball head. The decanting water port is provided at one end of the pipe body away from the ball head. The clear liquid cavity is provided inside the pipe body. The pipe body, the decanting water port and the ball head are internally communicated.

5. The garbage leachate collection and treatment device according to claim 4, characterized in that, The aeration mechanism includes a rotating frame, a linkage gear, an internal gear and an aeration component. The rotating frame is rotatably arranged on the bottom frame. The outer wall of the rotating frame is meshed and connected to the output end of the driving mechanism. The linkage gear is rotatably arranged on the rotating frame. The internal gears are rotatably inserted at equal intervals in a ring shape on the bottom frame. One of the internal gears passes through the bottom frame and is connected to a motor. The aeration components are slidably inserted at equal intervals in a ring shape on the rotating frame. The linkage gear is meshed and connected to several of the internal gears. The top end of the internal gear is meshed and connected to the aeration component.

6. The garbage leachate collection and treatment device according to claim 5, characterized in that, A rotating groove is provided at the bottom end of the rotating frame. The linkage gear is rotatably connected to the rotating groove. Sliding grooves are provided at equal intervals in a ring shape at the top end of the rotating frame. The aeration components are slidably inserted on the sliding grooves. An external tooth groove is provided at the bottom end of the outer wall of the rotating frame, and the external tooth groove is meshed and connected to the output end of the driving mechanism.

7. The garbage leachate collection and treatment device according to claim 6, characterized in that, The aeration assembly includes a rack and an aeration block. The rack is slidably inserted on the chute. The aeration block is fixedly arranged at the top end of the rack. The output end of the aeration block is movably arranged at the bottom of the sedimentation tank. The input end of the aeration block is connected to a gas supply mechanism through a hose.

8. A garbage leachate collection and treatment device according to claim 7, characterized in that, An air cavity is formed inside the aeration block. An air inlet hole is arranged at one end of the aeration block. An air outlet hole is formed in the top surface at the other end of the aeration block. The gas supply mechanism inputs gas through the hose into the air inlet hole and discharges it through the air cavity from the air outlet hole.

9. The garbage leachate collection and treatment device according to claim 8, characterized in that, Several groups of friction rollers are rotatably arranged at the top end of the aeration block near the air outlet hole. The top ends of the friction rollers contact the bottom end of the filter plate B. The motor drives one of the internal gears to rotate. The internal gear meshes with the linkage gear to rotate. The linkage gear drives several internal gears to rotate synchronously. The internal gear meshes with the rack to drive the aeration block to move. The movement of the aeration block causes the friction rollers to rub against the filter plate B.

10. A garbage leachate collection and treatment device according to claim 9, characterized in that, A perforation is formed at the position of the axis on the chassis. The fixed middle rod is inserted on the perforation. A sludge discharge pipe is further arranged at the bottom end of the chassis.

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