Penetrating fluid treatment device for refuse landfill

Abstract

The utility model belongs to the technical field of refuse leachate treatment, and particularly relates to a refuse landfill leachate treatment device which comprises a main body, an opening is formed in the bottom of the main body, a filtering mechanism is arranged in the main body, a guide plate is fixedly connected below the main body, an odor removing mechanism is arranged below the guide plate, and a pH adjusting mechanism is arranged below the odor removing mechanism. A feeding and discharging opening is formed in the front side of the main body corresponding to the filtering mechanism, and a control mechanism is arranged at the feeding and discharging opening of the front side of the main body. The refuse landfill penetrating fluid treatment device has the advantages that the lower portions of the four first linear telescopic devices are hinged to the four corners of the arc-shaped filter plate respectively, refuse can be evenly distributed in the middle of the arc-shaped filter plate, and solid refuse and penetrating fluid can be better separated; and meanwhile, the garbage is uniformly distributed again through four linear telescopic devices I after each extrusion, so that the situation that the arc-shaped filter plate is blocked by long-time filtering and the filtering efficiency of garbage penetrating fluid is reduced is prevented.

Description

Technical Field

[0001] This utility model belongs to the field of landfill leachate treatment technology, specifically relating to a device for treating landfill leachate. Background Technology

[0002] Landfill leachate refers to the wastewater that seeps out during the storage and landfilling process of waste due to fermentation, rainwater runoff, and soaking by surface water and groundwater. Its main sources include the water content of the waste itself, water produced by the biochemical reactions of the waste, reverse osmosis of groundwater, and atmospheric precipitation, among which atmospheric precipitation is the main component of the total leachate volume.

[0003] Existing landfill leachate treatment devices do not filter leachate thoroughly. After prolonged operation, impurities accumulate on the filter screens, sometimes leading to clogging and further affecting the filtration efficiency. In addition, before subsequent biological, chemical, and landfill treatments, the pH value of the leachate needs to be adjusted according to specific process requirements to ensure treatment efficiency. Utility Model Content

[0004] This invention addresses the aforementioned problems by providing a device for treating leachate from landfills.

[0005] This utility model relates to a leachate treatment device for landfills, comprising a main body with an opening at the bottom and a filtration mechanism inside. A guide plate is fixedly connected to the lower part of the main body, a deodorization mechanism is disposed below the guide plate, a pH adjustment mechanism is disposed below the deodorization mechanism, an inlet and outlet are provided on the front side of the main body at the corresponding position of the filtration mechanism, and a control mechanism is disposed on the front side of the main body at the inlet and outlet.

[0006] The filtration mechanism includes four linear telescopic devices and an arc-shaped filter plate. The lower parts of the four linear telescopic devices are respectively hinged to the four corners of the arc-shaped filter plate. The upper parts of the two front linear telescopic devices are fixedly connected to the four corners inside the main body. The upper parts of the two rear linear telescopic devices are slidably connected to sliding rods. One side of each sliding rod is fixedly connected to the rear side inside the main body, and the other side of each sliding rod is fixedly connected to the top of the main body through a connecting block.

[0007] Preferably, an arc-shaped extrusion plate is provided above the arc-shaped filter plate, the arc-shaped extrusion plate having the same curvature as the arc-shaped filter plate, and a linear telescopic device two is fixedly connected above the arc-shaped extrusion plate, the linear telescopic device two being fixedly connected to the top of the main body.

[0008] Preferably, the guide plate has a guide hole inside, and the guide hole is shaped like an inverted truncated cone.

[0009] Preferably, the deodorizing mechanism includes a U-shaped fixing frame with its opening facing the side. The top of the U-shaped fixing frame is fixedly connected to the bottom of the guide plate. A fixing plate is slidably connected to the U-shaped fixing frame via a track. The top of the fixing plate is slidably connected to the bottom of the guide plate. A circular hole is provided inside the fixing plate. Circular filter plates are detachably connected to the upper and lower sides of the circular hole, respectively. A cavity is provided between the two circular filter plates. Activated carbon is placed in the cavity. The diameter of the filter holes of the two circular filter plates is smaller than the particle size of the activated carbon.

[0010] Preferably, the pH adjustment mechanism includes a rectangular support frame, which is fixedly connected to the bottom of a U-shaped fixing frame. A fixing plate is slidably connected to one side of the top of the rectangular support frame. A support plate is fixedly connected below the rectangular support frame. A stirring paddle is rotatably connected above the support plate. The stirring paddle is disposed inside the rectangular support frame. A motor is fixedly connected below the support plate. The output shaft of the motor passes through the support plate and is fixedly connected to the stirring rod of the stirring paddle. Four feet are fixedly connected below the support plate.

[0011] Preferably, the rectangular support frame has a liquid outlet on its rear side, which is connected to an output pipe and equipped with an output pump. Two pH adjuster inlets are respectively opened on both sides of the rectangular support frame, and each of the two pH adjuster inlets is connected to an input pipe. Each of the two input pipes is equipped with an input pump, and a storage tank is fixedly connected to the side of each of the two input pipes away from the rectangular support frame. The two storage tanks respectively store an acidic adjuster and an alkaline adjuster. A pH sensor is installed inside the rectangular support frame.

[0012] Preferably, the control mechanism includes two limiting plates, which are fixedly connected to the main body on both sides of the inlet and outlet. The cross-section of the two limiting plates is L-shaped. A door panel is slidably connected between the two limiting plates. A linear telescopic device three is fixedly connected above the door panel, and one side of the linear telescopic device three is fixedly connected to the main body.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] Compared with existing technologies, this utility model is used for landfill leachate treatment devices.

[0015] (1) The four linear telescopic devices of the landfill leachate treatment device are respectively hinged to the four corners of the arc-shaped filter plate, which can evenly distribute the garbage in the middle of the arc-shaped filter plate, making it easier to separate solid garbage and leachate. At the same time, after each squeezing, the garbage is evenly distributed again by the four linear telescopic devices, preventing the arc-shaped filter plate from being blocked for a long time and reducing the filtration efficiency of the landfill leachate.

[0016] (2) The landfill leachate treatment device uses four linear telescopic devices to adjust the edge of the arc filter plate near the door panel to be flush with the lower edge of the inlet and outlet. Then, the push rods of the two linear telescopic devices on the rear side retract, and at the same time, the two linear telescopic devices on the rear side slide forward along the two sliding rods 5 respectively, so that solid waste can be poured out from the inlet and outlet.

[0017] (3) The landfill leachate treatment device, through the cooperation of PLC controller, pH sensor and two input pumps, can accurately adjust the pH value of landfill leachate, thereby facilitating subsequent biological treatment, chemical treatment and landfilling. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below:

[0019] Figure 1 This is a schematic diagram of a landfill leachate treatment device provided in Example 1;

[0020] Figure 2 This is a top view of the landfill leachate treatment apparatus provided in Example 1;

[0021] Figure 3 This is an internal structural diagram of the landfill leachate treatment device provided in Example 1;

[0022] Figure 4 A schematic diagram of the filtration mechanism provided in Example 1;

[0023] Figure 5 A schematic diagram of the deodorization mechanism provided in Example 1;

[0024] Figure 6 This is a cross-sectional view of the fixing plate provided in Example 1.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Main body, 2. Guide plate, 3. Linear telescopic device one, 4. Arc-shaped filter plate, 5. Sliding rod, 6. Arc-shaped extrusion plate, 7. Linear telescopic device two, 8. U-shaped fixing frame, 9. Fixing plate, 10. Circular filter plate, 11. Cavity, 12. Rectangular support frame, 13. Support plate, 14. Stirring paddle, 15. Motor, 16. Foot, 17. Output pipe, 18. Output pump, 19. Input pipe, 20. Input pump, 21. Storage tank, 22. Limiting plate, 23. Door panel, 24. Linear telescopic device three, 25. Connecting block. Detailed Implementation

[0027] To better understand the above-mentioned objectives, features and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0029] Example 1

[0030] The following is combined Figures 1-6 The present invention will be further described as follows: Figures 1-6 The device shown is for treating leachate from a landfill. It includes a main body 1 with an opening at the bottom. A filter mechanism is installed inside the main body 1. A guide plate 2 is fixedly connected to the bottom of the main body 1. A deodorization mechanism is installed below the guide plate 2. A pH adjustment mechanism is installed below the deodorization mechanism. An inlet and outlet are provided on the front side of the main body 1 at the corresponding position of the filter mechanism. A control mechanism is provided on the front side of the main body 1 at the inlet and outlet.

[0031] like Figures 1-6 As shown, the filtration mechanism includes four linear telescopic devices 3 and an arc-shaped filter plate 4. The lower parts of the four linear telescopic devices 3 are respectively hinged to the four corners of the arc-shaped filter plate 4. The upper parts of the two front linear telescopic devices 3 are fixedly connected to the four corners inside the main body 1. The upper parts of the two rear linear telescopic devices 3 are respectively slidably connected to sliding rods 5. One side of each sliding rod 5 is fixedly connected to the rear side inside the main body 1, and the other side of each sliding rod 5 is fixedly connected to the top of the main body 1 through a connecting block 25.

[0032] like Figures 1-6 As shown, an arc-shaped extrusion plate 6 is provided above the arc-shaped filter plate 4. The arc-shaped extrusion plate 6 has the same curvature as the arc-shaped filter plate 4. A linear telescopic device 2 7 is fixedly connected above the arc-shaped extrusion plate 6. The linear telescopic device 2 7 is fixedly connected to the top of the main body 1.

[0033] like Figures 1-6As shown, the guide plate 2 has a guide hole inside, and the shape of the guide hole is an inverted truncated cone.

[0034] like Figures 1-6 As shown, the deodorizing mechanism includes a U-shaped fixing frame 8 with its opening facing the side. The top of the U-shaped fixing frame 8 is fixedly connected to the bottom of the guide plate 2. A fixing plate 9 is slidably connected to the U-shaped fixing frame 8 via a track. The top of the fixing plate 9 is slidably connected to the bottom of the guide plate 2. A circular hole is provided inside the fixing plate 9. Circular filter plates 10 are detachably connected to the upper and lower sides of the circular hole, respectively. A cavity 11 is provided between the two circular filter plates 10. Activated carbon is placed in the cavity 11. The diameter of the filter holes of the two circular filter plates 10 is smaller than the particle size of the activated carbon.

[0035] like Figures 1-6 As shown, the pH adjustment mechanism includes a rectangular support frame 12, which is fixedly connected to the bottom of a U-shaped fixing frame 8. A fixing plate 9 is slidably connected to one side of the top of the rectangular support frame 12. A support plate 13 is fixedly connected below the rectangular support frame 12. A stirring paddle 14 is rotatably connected above the support plate 13. The stirring paddle 14 is located inside the rectangular support frame 12. A motor 15 is fixedly connected below the support plate 13. The output shaft of the motor 15 passes through the support plate 13 and is fixedly connected to the stirring rod of the stirring paddle 14. Four feet 16 are fixedly connected below the support plate 13.

[0036] like Figures 1-6 As shown, a liquid outlet is provided on the rear side of the rectangular support frame 12, and the liquid outlet is connected to an output pipe 17. An output pump 18 is provided on the output pipe 17. Two pH adjuster inlets are provided on both sides of the rectangular support frame 12, and the two pH adjuster inlets are connected to input pipes 19 respectively. An input pump 20 is provided on each of the two input pipes 19. A storage tank 21 is fixedly connected to the side of each of the two input pipes 19 away from the rectangular support frame 12. The two storage tanks 21 store acidic and alkaline adjusters respectively. A pH sensor is provided inside the rectangular support frame 12.

[0037] like Figures 1-6 As shown, the control mechanism includes two limiting plates 22, which are fixedly connected to the main body 1 on both sides of the inlet and outlet. The cross-section of the two limiting plates 22 is L-shaped. A door panel 23 is slidably connected between the two limiting plates 22. A linear telescopic device 24 is fixedly connected above the door panel 23. One side of the linear telescopic device 24 is fixedly connected to the main body 1.

[0038] In this embodiment, the four linear telescopic devices 1 (3), 2 (7), and 3 (24) are all cylinders, hydraulic cylinders, or electric telescopic rods; the pH sensor is externally connected to a PLC controller, and both input pumps 20 are also externally connected to the PLC controller.

[0039] Working principle:

[0040] Activate linear telescopic device 3 24, whose push rod drives the door panel 23 upward. The worker adds the waste to be processed through the inlet and outlet. Then, the door panel 23 is moved downward until it is completely closed. The waste is placed on the arc-shaped filter plate 4 to filter the leachate. Specifically, activate four linear telescopic devices 1 3. When the push rods of the two front linear telescopic devices 1 3 extend, the push rods of the two rear linear telescopic devices 1 3 retract. When the push rods of the two front linear telescopic devices 1 3 retract, the push rods of the two rear linear telescopic devices 1 3 extend. Repeat the above operation for the four linear telescopic devices 1 3 to make the waste evenly distributed in the middle of the arc-shaped filter plate 4. Then, adjust the arc-shaped filter plate 4 to be horizontal. Then activate linear telescopic device 2 7, whose push rod drives the arc-shaped extrusion plate 6 downward to extrude the waste on the arc-shaped filter plate 4. The above-mentioned leachate filtration steps are repeated several times until the leachate no longer drips from the arc-shaped filter plate 4. Then, the door panel 23 is opened, and the four linear telescopic devices 3 are activated. The edge of the arc-shaped filter plate 4 near the door panel 23 is adjusted to be flush with the lower edge of the inlet and outlet. The two linear telescopic devices 3 on the rear side are activated again, and their push rods retract, causing the rear side of the arc-shaped filter plate 4 to rise (at the same time, the two linear telescopic devices 3 on the rear side slide forward along the two sliding rods 5 respectively), and the solid waste is poured out from the inlet and outlet. After being filtered by the arc-shaped filter plate 4, the leachate reaches the guide plate 2, and then passes through two circular filter plates 10. The activated carbon in the cavity 11 removes odors, organic matter, and heavy metals.

[0041] The leachate enters the rectangular support frame 12. Motor 15 is started, and agitator 14 begins stirring. A pH sensor transmits the pH data of the leachate to the PLC controller. The PLC controller sends a signal to input pump 20, instructing the addition of a measured amount of acidic or alkaline regulator to the leachate. Stirring continues, and the pH sensor transmits real-time pH data to the PLC controller. When the pH of the leachate stops changing, the PLC controller controls the addition of acidic or alkaline regulator based on the current pH value until the pH reaches the required level. Output pump 18 is then started, and the treated leachate is discharged through output pipe 17.

[0042] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A landfill leachate treatment device, comprising a main body (1), characterized in that, The bottom of the main body (1) is open, a filter mechanism is provided inside the main body (1), a guide plate (2) is fixedly connected to the bottom of the main body (1), a deodorizing mechanism is provided below the guide plate (2), a pH adjustment mechanism is provided below the deodorizing mechanism, an inlet and outlet are provided on the front side of the main body (1) at the corresponding position of the filter mechanism, and a control mechanism is provided on the front side of the main body (1) at the inlet and outlet. The filtration mechanism includes four linear telescopic devices (3) and an arc-shaped filter plate (4). The four linear telescopic devices (3) are respectively hinged to the four corners of the arc-shaped filter plate (4). The two linear telescopic devices (3) on the front side are fixedly connected to the four corners inside the main body (1). The two linear telescopic devices (3) on the rear side are respectively slidably connected to the upper part of the sliding rods (5). One side of the two sliding rods (5) is fixedly connected to the rear side inside the main body (1), and the other side of the two sliding rods (5) is fixedly connected to the top of the main body (1) through a connecting block (25).

2. The landfill leachate treatment device according to claim 1, characterized in that, An arc-shaped extrusion plate (6) is provided above the arc-shaped filter plate (4). The arc-shaped extrusion plate (6) has the same arc as the arc-shaped filter plate (4). A linear telescopic device (7) is fixedly connected above the arc-shaped extrusion plate (6). The linear telescopic device (7) is fixedly connected to the top of the main body (1).

3. The landfill leachate treatment device according to claim 1, characterized in that, The guide plate (2) has a guide hole inside, and the guide hole is shaped like an inverted truncated cone.

4. The landfill leachate treatment device according to claim 1, characterized in that, The deodorizing mechanism includes a U-shaped fixing frame (8), the opening of the U-shaped fixing frame (8) faces the side, the upper part of the U-shaped fixing frame (8) is fixedly connected to the bottom of the guide plate (2), a fixing plate (9) is slidably connected to the U-shaped fixing frame (8) through a track, the upper part of the fixing plate (9) is slidably connected to the bottom of the guide plate (2), a circular hole is opened inside the fixing plate (9), and a circular filter plate (10) is detachably connected to the upper and lower sides of the circular hole, and a cavity (11) is provided between the two circular filter plates (10), and activated carbon is provided in the cavity (11). The diameter of the filter hole of the two circular filter plates (10) is smaller than the particle size of the activated carbon particles.

5. The landfill leachate treatment device according to claim 4, characterized in that, The pH adjustment mechanism includes a rectangular support frame (12), which is fixedly connected to the bottom of a U-shaped fixing frame (8). The fixing plate (9) is slidably connected to one side of the top of the rectangular support frame (12). A support plate (13) is fixedly connected below the rectangular support frame (12). A stirring paddle (14) is rotatably connected above the support plate (13). The stirring paddle (14) is located inside the rectangular support frame (12). A motor (15) is fixedly connected below the support plate (13). The output shaft of the motor (15) passes through the support plate (13) and is fixedly connected to the stirring rod of the stirring paddle (14). Four feet (16) are fixedly connected below the support plate (13).

6. The landfill leachate treatment device according to claim 5, characterized in that, The rectangular support frame (12) has a liquid outlet on its rear side, and the liquid outlet is connected to an output pipe (17). An output pump (18) is installed on the output pipe (17). Two pH adjuster inlets are opened on both sides of the rectangular support frame (12). The two pH adjuster inlets are connected to input pipes (19). An input pump (20) is installed on each of the two input pipes (19). A storage tank (21) is fixedly connected to the side of each input pipe (19) away from the rectangular support frame (12). The two storage tanks (21) store acidic and alkaline adjusters respectively. A pH sensor is installed inside the rectangular support frame (12).

7. The landfill leachate treatment device according to claim 1, characterized in that, The control mechanism includes two limiting plates (22), which are fixedly connected to the main body (1) on both sides of the inlet and outlet. The cross-section of the two limiting plates (22) is L-shaped. A door panel (23) is slidably connected between the two limiting plates (22). A linear telescopic device three (24) is fixedly connected above the door panel (23). One side of the linear telescopic device three (24) is fixedly connected to the main body (1).

Images