A garbage leachate treatment device

Abstract

The present invention relates to a garbage leachate treatment device, which comprises a box body, a stirring mechanism and a separation mechanism located inside the box body, and a treatment mechanism for receiving the separated liquid. The stirring mechanism comprises a cylinder fixed on the top wall of the box body through a rolling bearing I. A cover plate for fixing a motor I is arranged at the top of the cylinder, and a stirring paddle located inside the box body is arranged on the rotating shaft of the motor I. The separation mechanism comprises a primary separation component and a secondary separation component. The primary separation component comprises orifice plates located on both sides inside the box body. The orifice plates are driven by hydraulic rods. A woven mesh layer closely attached to the inner wall of the box body is connected between the corresponding tops of the two groups of orifice plates, and the back of the middle part of the woven mesh layer is fixedly connected to the inner wall of the box body. A collecting trough is sleeved outside the bottom of the box body. A communication port communicated with the collecting trough is arranged at the bottom of the side wall of the box body, and a liquid storage tank connected to the collecting trough through a communication pipe is also arranged at the bottom of the box body. The structure of the present invention is simple and convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of leachate treatment, and particularly relates to a garbage leachate treatment device. Background Art

[0002] Garbage leachate refers to the water contained in the garbage itself in the landfill, rain and snow water entering the landfill and other water. After deducting the saturated water holding capacity of the garbage and the covering soil layer, and passing through the garbage layer and the covering soil layer, a high-concentration organic wastewater is formed.

[0003] Existing garbage leachate contains a large amount of high-concentration organic wastewater. During the treatment process of garbage leachate, it is necessary to treat the solid and liquid in the garbage leachate simultaneously. Usually, due to the different chemicals used for solid and liquid treatment, a large amount of chemicals will be wasted, resulting in a waste of resources. And because the treatment time of solid and liquid is different, the treatment efficiency of garbage leachate is low. For this reason, there is a garbage leachate high-efficiency biological treatment device with the patent number CN113461254B to solve the above problems. However, the device has the following defects when in use. For example, when only the liquid gravity is used to make it pass through the filter screen for filtration, and then solid-liquid separation is achieved, it is easy to cause incomplete solid-liquid separation, resulting in a large amount of liquid being discharged with the solid, thereby affecting the solid-liquid separation effect and efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a garbage leachate treatment device.

[0005] The technical problems of the present invention are mainly solved by the following technical solutions:

[0006] A garbage leachate treatment device includes a box body, a stirring mechanism and a separation mechanism located inside the box body, and a treatment mechanism for receiving the separated liquid:

[0007] The stirring mechanism includes a cylinder fixed on the top wall of the box body through a rolling bearing I. A cover plate for fixing a motor I is arranged at the top of the cylinder. A stirring paddle located inside the box body is arranged on the rotating shaft of the motor I. A toothed ring is also arranged on the cylinder above the box body. A clamping block is embedded in one tooth groove of the toothed ring, and the clamping block is driven by an electric push rod I.

[0008] The separation mechanism includes a primary separation component and a secondary separation component. The primary separation component includes orifice plates located on both sides inside the box body. The orifice plates are driven by hydraulic rods. The corresponding tops of the two groups of orifice plates are connected by a woven mesh layer closely attached to the inner wall of the box body, and the back of the middle part of the woven mesh layer is fixedly connected to the inner wall of the box body.

[0009] The bottom of the box body is covered with a circle of collecting grooves, wherein the bottom of the side wall of the box body is provided with a connecting port connected to the collecting groove, and the bottom of the box body is also provided with a liquid storage tank, and the liquid storage tank and the collecting groove are connected through a connecting pipe. The secondary separation component includes a vertical pipe located in the liquid storage tank and the top end of which is connected to the middle of the bottom of the box body, wherein the bottom end of the vertical pipe is sealed and installed with a motor II, and the motor II is provided with a positive and negative screw rod that passes through the vertical pipe and extends into the box body, and the bottom end of the rotating shaft is provided with a rolling Bearing II, wherein two groups of pressure plates located in the vertical tube are screwed on the positive and negative screw rods, and a limit rod tightly attached to the inner wall of the vertical tube is arranged at the bottom of the upper pressure plate, and the bottom end of the vertical tube is higher than the horizontal plane of the bottom of the liquid storage tank, wherein a slag discharge port located below the pressure plate is arranged on one side wall of the bottom of the vertical tube, and the side wall of the vertical tube above the slag discharge port is a mesh structure, and an inlet and outlet facing the slag discharge port are opened on the side wall of the liquid storage tank, wherein a filter screen connected to the vertical tube is also arranged in the liquid storage tank, and the filter screen is located below the slag discharge port and the inlet and outlet.

[0010] Preferably, the cross-section of the vertical tube opening is rectangular, wherein the size of the pressure plate is adapted to the size of the vertical tube opening, and the pressure plate is also provided with screw holes for screwing with positive and negative screw rods, and the height of the top of the pressure plate gradually decreases from the middle to the edge.

[0011] Preferably, a groove for fixing the rolling bearing II is provided at the bottom end of the rotating shaft, wherein the distance between the upper pressure plate and the rotating shaft is smaller than the length of the limiting rod, and the bottom end of the limiting rod is bent toward the middle of the vertical tube to form an arc-shaped guiding portion.

[0012] Preferably, the stirring paddle is located in the opening formed between the orifice plate and the woven mesh layer, wherein the box body is a barrel-shaped structure, the orifice plate is an arc-shaped structure and is tightly attached to the inner wall of the box body, and rubber reinforcing ribs are arranged on the side wall of the woven mesh layer along its arc length direction.

[0013] Preferably, a fixed cylinder corresponding to the slag discharge port is arranged on the outside of the vertical tube, wherein the position of the fixed cylinder is opposite to the position of the slag discharge port, and one end of the fixed cylinder extends to the outside of the liquid storage tank, an electric push rod II is arranged in the fixed cylinder, and a mounting plate is arranged on the output shaft of the electric push rod II, wherein one end of the mounting plate is provided with a plurality of groups of push rods that can slide into the opening of the vertical tube, and a through hole for accommodating the end of the push rod is arranged on the side wall of the vertical tube, wherein the plurality of groups of push rods are staggered with the positive and negative screw rods.

[0014] Preferably, feed pipes are provided on both sides of the top wall of the box body, wherein the bottom ends of the feed pipes extend to the top of the box body between the two groups of orifice plates.

[0015] The beneficial effects of the present invention are as follows: The present invention performs multi-stage solid-liquid separation on materials through a primary separation component and a secondary separation component to improve the separation effect. At the same time, the materials are initially solid-liquid separated in the box where the stirring mechanism is placed to improve the utilization value of the box. Meanwhile, the stirring mechanism that can change its position will not affect the solid-liquid separation work of the primary separation component on the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present invention;

[0017] Figure 2 is a top view of the box in the present invention;

[0018] Figure 3 is Figure 1 an enlarged view of the box in

[0019] Figure 4 is Figure 1 a partial enlarged view of the secondary separation component in

[0020] In the figures: 1, box; 2, stirring mechanism; 21, rolling bearing I; 22, cylinder; 23, cover plate; 24, motor I; 25, rotating shaft; 26, stirring paddle; 27, tooth ring; 3, separation mechanism; 31, primary separation component; 311, orifice plate; 312, hydraulic rod; 313, woven mesh layer; 32, secondary separation component; 321, vertical pipe; 322, motor II; 323, positive and negative lead screw; 324, rolling bearing II; 325, pressing plate; 326, limiting rod; 327, slag discharge port; 328, inlet and outlet; 329, filter screen; 4, fixture block; 5, electric push rod I; 6, collecting tank; 7, communication port; 8, liquid storage tank; 9, connecting pipe; 10, fixed cylinder; 11, electric push rod II; 12, ejector rod; 13, feed pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The technical solutions of the present invention will be further specifically described below through embodiments and in conjunction with the drawings.

[0022] A garbage leachate treatment device includes a box 1, a stirring mechanism 2 located inside the box 1, a separation mechanism 3, and a treatment mechanism for receiving the separated liquid:

[0023] The stirring mechanism 2 includes a cylinder 22 fixed to the top wall of the box body 1 through a rolling bearing I21. A cover plate 23 for fixing a motor I24 is provided at the top of the cylinder 22. A stirring paddle 26 located inside the box body 1 is provided on the rotating shaft 25 of the motor I24. A toothed ring 27 is further provided on the cylinder 22 above the box body 1. A clamping block 4 is embedded in one tooth groove of the toothed ring 27, and the clamping block 4 is driven by an electric push rod I5. By the way of the clamping block 4 clamping the toothed ring 27, the problem that the stirring mechanism 2 drives the cylinder 22 to rotate on the rolling bearing I21 during operation, thereby affecting the stirring work of the stirring mechanism 2 on the products in the box body 1, is prevented.

[0024] The separation mechanism 3 includes a primary separation component 31 and a secondary separation component 32. The primary separation component 31 includes orifice plates 311 located on both sides inside the box body 1. The orifice plates 311 are driven by hydraulic rods 312. A woven mesh layer 313 tightly attached to the inner wall of the box body 1 is connected between the corresponding tops of the two groups of orifice plates 311, and the back of the middle part of the woven mesh layer 313 is fixedly connected to the inner wall of the box body 1.

[0025] A collecting groove 6 is sleeved outside the bottom of the box body 1. A communication port 7 communicating with the collecting groove 6 is provided at the bottom of the side wall of the box body 1. A liquid storage tank 8 is further provided at the bottom of the box body 1. The liquid storage tank 8 is connected to the collecting groove 6 through a communication pipe 9. The secondary separation component 32 includes a vertical pipe 321 located inside the liquid storage tank 8 and having its top end communicating with the middle part of the bottom of the box body 1. The bottom end of the vertical pipe 321 is sealed and a motor II322 is installed. A left - right screw rod 323 passing through the vertical pipe 321 and extending into the box body 1 is provided on the motor II322. A rolling bearing II324 for fixing the top end of the left - right screw rod 323 is provided at the bottom end of the rotating shaft 25. Two pressing plates 325 located inside the vertical pipe 321 are screwed on the left - right screw rod 323. A limiting rod 326 tightly attached to the inner wall of the vertical pipe 321 is provided at the bottom of the upper pressing plate 325. The bottom end of the vertical pipe 321 is higher than the horizontal plane of the bottom of the liquid storage tank 8. A slag discharge port 327 is provided on one side wall at the bottom of the vertical pipe 321 below the pressing plate 325, and the side wall of the vertical pipe 321 above the slag discharge port 327 is of a mesh structure. An inlet - outlet 328 facing the slag discharge port 327 is provided on the side wall of the liquid storage tank 8. A filter screen 329 connected to the vertical pipe 321 is further provided inside the liquid storage tank 8, and the filter screen 329 is located below the slag discharge port 327 and the inlet - outlet 328.

[0026] In this embodiment, the cross - section of the opening of the vertical pipe 321 is rectangular. The size of the pressing plate 325 is adapted to the size of the opening of the vertical pipe 321, so that the pressing plate 325 will not rotate when moving up and down in the vertical pipe 321. A screw hole screwed with the left - right screw rod 323 is further provided on the pressing plate 325. The top height of the pressing plate 325 gradually decreases from the middle to the edge direction so that impurities or liquid on its top end surface can flow down along its inclined surface.

[0027] In the above process, the bottom end of the forward and reverse screw rods 323 is fixed by the sealed end at the bottom of the vertical tube 321, and the top end of the forward and reverse screw rods 323 is fixed by the rolling bearing II324 to improve its stability, and the forward and reverse screw rods 323 are driven by the motor II322 to rotate in the screw hole in the pressure plate 325, so as to adjust the distance between the two groups of pressure plates 325, so that they can move up and down, so as to open the top opening of the vertical tube 321 to facilitate the flow of materials in the box body 1, and squeeze the materials in the vertical tube 321 to perform solid-liquid separation.

[0028] In this embodiment, a groove for fixing the rolling bearing II324 is provided at the bottom of the rotating shaft 25, wherein the distance between the upper pressing plate 325 and the rotating shaft 25 is smaller than the length of the limiting rod 326, and the bottom end of the limiting rod 326 is bent toward the middle of the vertical tube 321 to form an arc-shaped guide portion. When the upper pressing plate 325 moves up and contacts the bottom end of the rotating shaft 25, the bottom end of the limiting rod 326 is still located in the opening of the vertical tube 321 and is supported by it, so as to prevent the problem that the upper pressing plate 325 will rotate when the positive and negative screw rods 323 drive the upper pressing plate 325 to move down, and cannot be well aligned with the opening of the vertical tube 321 and smoothly slide into the opening of the vertical tube 321.

[0029] In this embodiment, the stirring paddle 26 is located in the opening formed between the orifice plate 311 and the woven mesh layer 313, wherein the box body 1 is a barrel-shaped structure, the orifice plate 311 is an arc-shaped structure and is closely attached to the inner wall of the box body 1, wherein rubber reinforcing ribs are arranged on the side wall of the woven mesh layer 313 along the arc length direction thereof. The toughness of the reinforcing ribs supports the woven mesh layer 313 to be closely attached to the inner wall of the box body 1, preventing it from affecting the normal operation of the stirring mechanism 2, and at the same time, after it is deformed by pressure, the reinforcing ribs also facilitate its restoration to its original state.

[0030] In this embodiment, a fixed cylinder 10 corresponding to the slag discharge port 327 is arranged on the outside of the vertical tube 321, wherein the position of the fixed cylinder 10 is opposite to the position of the slag discharge port 327, and one end of the fixed cylinder 10 extends to the outside of the liquid storage tank 8, an electric push rod II11 is arranged in the fixed cylinder 10, and a mounting plate is arranged on the output shaft of the electric push rod II11, wherein one end of the mounting plate is provided with a plurality of groups of push rods 12 that can slide into the opening of the vertical tube 321, and a through hole for accommodating the end of the push rod 12 is arranged on the side wall of the vertical tube 321, wherein the plurality of groups of push rods 12 are staggered with the forward and reverse screw rods 323.

[0031] In this embodiment, feed pipes 13 are arranged on both sides of the top wall of the box body 1, and the bottom ends of the feed pipes 13 extend to the inner top of the box body 1 between the two orifice plates 311. By means of the two feed pipes 13 against the moving orifice plates 311, the reduction range of the distance between the two orifice plates 311 is restricted, preventing the excessive reduction of the distance between the two, which may over-extrude the flocs in the box body 1 and cause them to fail to flow smoothly into the vertical pipes 321. Moreover, over-extruding the flocs will also cause a large resistance to the orifice plates 311, which is not conducive to improving the stability and safety of the primary separation assembly 31 and will also affect its processing efficiency.

[0032] The working principle of the present invention: When the landfill leachate enters the inside of the box body 1 through the feed pipes 13, at this time, the upper pressing plate 325 seals the top opening of the vertical pipe 321 to prevent the materials in the box body 1 from flowing into the vertical pipe 321. The motor I 24 drives the stirring paddle 26 to rotate through the rotating shaft 25 to improve the mixing efficiency of the landfill leachate and the reagent in the box body 1. After the landfill leachate is mixed with the reagent, the motor I 24 is turned off. At this time, the electric push rod I 5 drives the block 4 to slide out of the tooth groove of the gear ring 27, so that the entire stirring mechanism 2 can rotate on the rolling bearing I 21 under the influence of external force, thereby changing the orientation of the stirring paddle 26. Then, the hydraulic rod 312 drives the orifice plate 311 to move to reduce the distance between the two orifice plates 311, thereby driving the deformation of the woven mesh layer 313. Then, the liquid and flocs located between the two are squeezed by the orifice plates 311 with reduced distance, so that the liquid leaks out through the apertures of the orifice plates 311 and the woven mesh layer 313, and finally enters the collecting tank 6 through the communication port 7 and flows into the liquid storage tank 8 through the connecting pipe 9, and finally is discharged to the treatment mechanism, achieving the purpose of preliminary solid-liquid separation in this way.

[0033] During the above process, when the gap between the two orifice plates 311 decreases, the inner walls thereof will contact the corresponding ends of the stirring paddle 26, and then squeeze it, so that the stirring paddle 26 is pressed and drives the cylinder 22 to rotate on the rolling bearing I 21 through the rotating shaft 25 and the cover plate 23, thereby changing the orientation of the stirring paddle 26 to make it in a front-back arrangement state. Furthermore, the problem that the stirring mechanism 2 will not affect the movement of the orifice plate 311 for solid-liquid separation of the product is solved, so that the primary separation assembly 31 can be used to perform preliminary solid-liquid separation of the product in the box body 1.

[0034] Meanwhile, the motor II 322 can also drive the positive and negative lead screw 323 to rotate in the screw hole of the pressing plate 325, so as to drive the upper pressing plate 325 to slide into the box body 1 and the lower pressing plate 325 to slide into the vertical pipe 321 above the slag discharge port 327, thereby expanding the distance between the two pressing plates 325. During this process, due to the rectangular opening of the vertical pipe 321 and the influence of the limiting rod 326, the pressing plate 325 will not rotate with the positive and negative lead screw 323 but only move up and down. Then, the flocs and residual liquid after preliminary solid-liquid separation in the box body 1 can smoothly enter the vertical pipe 321 through the bottom space of the upper pressing plate 325. Then, the positive and negative lead screw 323 drives the two pressing plates 325 to move to narrow the distance between them, and then squeezes the flocs and liquid in the vertical pipe 321 again to achieve the purpose of solid-liquid separation. The liquid is drained out through the holes on the side wall of the vertical pipe 321 into the liquid storage tank 8. When it is necessary to discharge the separated solid matter, the positive and negative lead screw 323 drives the pressing plate 325 to move to expand the distance between the two pressing plates 325, so that the lower pressing plate 325 moves to the bottom of the vertical pipe 321 and the upper pressing plate 325 moves into the box body 1. Then, the electric push rod II 11 can drive the ejector rod 12 to slide into the vertical pipe 321 to squeeze and eject the solid matter, so that it is discharged through the slag discharge port 327 and the opened inlet and outlet 328 at this time, or people can take out the solid matter in the vertical pipe 321 through the inlet and outlet 328 and the slag discharge port 327.

[0035] The above has described the present invention in detail, but the content described is only the preferred embodiment of the present invention and cannot be considered as used to limit the scope of implementation of the present invention. All equal changes and improvements made according to the scope of the application of the present invention should still fall within the scope covered by the patent of the present invention.

Claims

1. A garbage leachate treatment device, comprising a box body, a stirring mechanism and a separation mechanism located inside the box body, and a treatment mechanism for receiving the separated liquid, characterized in that: The stirring mechanism includes a cylinder fixed on the top wall of the box body through a rolling bearing I. A cover plate for fixing a motor I is arranged at the top of the cylinder, and a stirring paddle located inside the box body is arranged on the rotating shaft of the motor I. A toothed ring is also arranged on the cylinder above the box body. A clamping block is embedded in one tooth groove of the toothed ring, and the clamping block is driven by an electric push rod I; The separation mechanism includes a primary separation component and a secondary separation component. The primary separation component includes orifice plates located on both sides inside the box body. The orifice plates are driven by hydraulic rods. A woven mesh layer closely attached to the inner wall of the box body is connected between the corresponding tops of the two groups of orifice plates, and the back of the middle part of the woven mesh layer is fixedly connected to the inner wall of the box body; A collecting groove is sleeved outside the bottom of the box body. A communication port communicating with the collecting groove is arranged at the bottom of the side wall of the box body. A liquid storage tank is also arranged at the bottom of the box body. The liquid storage tank is connected to the collecting groove through a connecting pipe. The secondary separation component includes a vertical pipe located inside the liquid storage tank and communicating with the middle part of the bottom of the box body at the top. The bottom end of the vertical pipe is sealed and provided with a motor II, and a positive and negative lead screw passing through the vertical pipe and extending into the box body is arranged on the motor II. A rolling bearing II for fixing the top end of the positive and negative lead screw is arranged at the bottom end of the rotating shaft. Two pressing plates located inside the vertical pipe are screwed on the positive and negative lead screws. A limiting rod closely attached to the inner wall of the vertical pipe is arranged at the bottom of the upper pressing plate. The bottom end of the vertical pipe is higher than the horizontal plane of the bottom of the liquid storage tank. A slag discharge port is arranged on one side wall of the bottom of the vertical pipe below the pressing plate, and the side wall of the vertical pipe above the slag discharge port is of a mesh structure. An inlet and outlet facing the slag discharge port is arranged on the side wall of the liquid storage tank. A filter screen connected to the vertical pipe is also arranged inside the liquid storage tank, and the filter screen is located below the slag discharge port and the inlet and outlet.

2. A garbage leachate treatment device according to claim 1, characterized in that: The cross-section of the opening of the vertical pipe is rectangular. The size of the pressing plate is adapted to the size of the opening of the vertical pipe, and a threaded hole screwed with the positive and negative lead screw is also arranged on the pressing plate. The height of the top of the pressing plate gradually decreases from the middle to the edge direction.

3. A garbage leachate treatment device according to claim 1, characterized in that: A groove for fixing the rolling bearing II is arranged at the bottom end of the rotating shaft. The distance between the upper pressing plate and the rotating shaft is less than the length of the limiting rod, and the bottom end of the limiting rod is bent towards the middle of the vertical pipe with an arc-shaped guiding part.

4. A garbage leachate treatment device according to claim 1, characterized in that: The stirring paddle is located in the opening formed between the orifice plate and the woven mesh layer. The box body is of a barrel-shaped structure. The orifice plate is of an arc-shaped structure and closely attached to the inner wall of the box body. Rubber reinforcing rib strips are arranged on the side wall of the woven mesh layer along the arc length direction.

5. A garbage leachate treatment device according to claim 1, characterized in that: A fixed cylinder corresponding to the slag discharge port is arranged on the outside of the vertical tube, wherein the position of the fixed cylinder is opposite to the position of the slag discharge port, and one end of the fixed cylinder extends to the outside of the liquid storage tank, an electric push rod II is arranged in the fixed cylinder, and a mounting plate is arranged on the output shaft of the electric push rod II, wherein one end of the mounting plate is arranged with multiple groups of push rods that can slide into the opening of the vertical tube, and a through hole for accommodating the end of the push rod is arranged on the side wall of the vertical tube, wherein the multiple groups of push rods are staggered with the positive and negative screw rods.

6. A landfill leachate treatment device according to claim 1, Features: Feed pipes are arranged on both sides of the top wall of the box body, wherein the bottom ends of the feed pipes extend to the top of the box body between the two groups of orifice plates.

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