A leachate collection, treatment and recharging device for landfill

Abstract

The invention discloses a leachate collection, treatment and reinjection device applied to a landfill, comprising a landfill pile, wherein the landfill pile comprises a landfill layer, a sealing covering layer is laid on the top surface of the landfill layer, and a collecting shaft is opened inside the landfill layer; a starting structure can monitor the liquid level of the leachate in real time, so that when the liquid level reaches a set height, an air-blowing structure can be opened, and a port of a reinforcement pipe can be blocked by the air-blowing structure, and at the same time, the air-blowing structure can fill high-pressure gas into the reinjection mechanism, so that the reinjection mechanism can lift the leachate inside the leachate collection piece to a high place under the action of the air pressure difference, and the leachate reversely osms into the landfill pile at a high position, so as to realize the purpose of reinjecting the leachate, so that the collection well and the reinjection well are combined into one, the number of wells in the landfill is reduced, and the adverse effects caused by too dense and too combed wells are avoided, thereby improving the practicability of the leachate collection, treatment and reinjection device applied to the landfill.

Description

Technical Field

[0001] The invention relates to the field of garbage landfill related equipment, and more specifically to a leachate collection, treatment and recharging device used in garbage landfills. Background Art

[0002] Leachate reinjection is the process of collecting the leachate and returning it to the landfill, reducing the filtrate through natural evaporation, and intercepting pollutants through biological, physical, and chemical reactions in the garbage layer and the buried soil layer. The recycling of leachate has a great promoting effect on waste degradation and landfill stability, and has a strong ability to purify organic matter. The soil structure, hydraulic load, COD load, water distribution times and water distribution concentration have a certain impact on the soil purification capacity. The main methods of leachate reinjection are surface reinjection, subsurface leachate reinjection, vertical shaft reinjection method or horizontal reinjection method.

[0003] The vertical shaft reinjection method is one of the more commonly used methods for leachate reinjection. In order to avoid short-circuiting, the bottom of the reinjection well is impermeable. When the leachate is reinjected, the leachate is pumped out of the collection well and pumped into the vertical shaft by a water pump, and then the leachate flows back to the landfill through the pores on the inner wall of the vertical shaft. This requires the arrangement of many vertical shafts and leachate collection wells in the landfill. The number of wells is large, and the distance between the wells is too close, which will affect the stacking and compaction of landfill garbage. If the distance between the wells is too sparse, the water storage capacity of the landfill is not fully utilized, resulting in uneven humidity in the landfill. Therefore, it is urgent to design a leachate collection, treatment and reinjection device for use in landfills. Summary of the invention

[0004] 1. Technical issues to be solved

[0005] The vertical shaft reinjection method existing in the prior art is one of the more commonly used methods for leachate reinjection. In order to avoid short-circuiting, the bottom of the reinjection well is impermeable. When the leachate is reinjected, the leachate is pumped out from the collection well and pumped into the vertical shaft by a water pump, and then the leachate flows back to the landfill garbage through the pores on the inner wall of the vertical shaft. In this way, a large number of vertical shafts and leachate collection wells need to be arranged in the landfill. The number of wells is large, and the distance between the wells is too close, which will affect the stacking and compaction of the landfill garbage. If the distance between the wells is too sparse, the water storage capacity of the landfill is not fully utilized, resulting in the problem of uneven humidity in the landfill. The purpose of the present invention is to provide a leachate collection, treatment and reinjection device applied to a landfill, which can well solve the problems raised in the background technology.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A leachate collection, treatment and reinjection device for use in a landfill comprises a landfill pile, wherein the landfill pile comprises a landfill layer, a sealing covering layer is laid on the top surface of the landfill layer, a collecting shaft is opened inside the landfill layer, the top end of the collecting shaft extends to the inside of the sealing covering layer, a filtering gravel layer is provided on the inner wall of the collecting shaft, a reinforcing pipe is provided on the top end of the filtering gravel layer, the reinforcing pipe is fixedly connected to the inner wall of the collecting shaft, the reinforcing pipe is fixedly plugged into the inside of the sealing covering layer, the top end of the reinforcing pipe is flush with the top surface of the sealing covering layer, a leachate collecting piece is fixedly installed inside the filtering gravel layer, the top end of the leachate collecting piece is fixedly plugged into the inside of the reinforcing pipe, an air inflation structure is movably plugged into the inside of the reinforcing pipe, and the bottom end of the air inflation structure is butted against the top surface of the leachate collecting piece.

[0009] The leachate collecting component comprises a leachate collecting cylinder, on the surface of which leachate collecting cylinder is provided with leachate collecting holes fixedly connected with its inner cavity, on the bottom surface of the inner cavity of the leachate collecting cylinder is fixedly installed a positioning cylinder, on the surface of which a diversion air pipe is opened.

[0010] Preferably, it also includes a re-injection mechanism, which includes an elastic rubber tube, which is movably sleeved on the outside of the positioning tube, the elastic rubber tube is slidably connected to the inner wall of the leachate collecting tube, the bottom end of the elastic rubber tube is fixedly connected to the bottom surface of the inner cavity of the leachate collecting tube, the top end of the elastic rubber tube is fixedly connected to a sealing piston, the sealing piston is slidably connected to the inner wall of the leachate collecting tube, a distance rod is fixedly connected to the top surface of the sealing piston, a pulling spring is fixedly connected to the bottom surface of the sealing piston, and the bottom end of the pulling spring is fixedly connected to the bottom surface of the inner cavity of the leachate collecting tube.

[0011] Preferably, the inflation structure includes a closing plug, which is movably inserted into the interior of the reinforcement tube, the bottom surface of the closing plug is in contact with the top surface of the leachate collecting tube, a liquid level contactor located at the left end of the closing plug is fixedly embedded on the bottom surface of the closing plug, the liquid level contactor is electrically connected to the intelligent controller, an adjusting vertical cavity is provided in the middle of the closing plug, a threading channel is provided on the inner wall of the adjusting vertical cavity, a contact spring located above the threading channel is fixedly connected to the inner wall of the adjusting vertical cavity, the number of the contact springs is two, the two contact springs are arranged up and down, an installation cavity is provided at the top of the closing plug, and the installation cavity It is connected to the threading channel, and an air vent is provided on the side of the closing plug at its top, the air vent is fixedly connected to the installation cavity, a rain shield cap located at its top is fixedly sleeved on the outer surface of the closing plug, an intelligent controller located at the left end is fixedly installed on the bottom surface of the inner cavity of the installation cavity, an air blower located in the middle is fixedly installed on the bottom surface of the inner cavity of the installation cavity, an air blowing pipe is fixedly connected to the right side surface of the air blowing machine, the other end of the air blowing pipe extends to the outside of the closing plug and is inserted into the inside of the sealing covering layer and the landfill layer and is fixedly connected to the bottom surface of the leachate collecting cylinder, and the end of the air blowing pipe is fixedly connected to the bottom end of the positioning cylinder.

[0012] Preferably, it also includes a starting structure, which includes a lifting spring and a fixed through-hole, the fixed through-hole is arranged on the bottom surface of the inner cavity of the adjusting vertical chamber, the lifting spring is movably plugged into the interior of the adjusting vertical chamber, the bottom end of the lifting spring is fixedly connected to the bottom surface of the inner cavity of the adjusting vertical chamber, the top end of the lifting spring is fixedly connected to the piston disc box, an electromagnetic latch is fixedly installed on the inner wall of the piston disc box, a limiting gear is arranged inside the piston disc box, the limiting gear is matched with the electromagnetic latch, a conical tap is fixedly connected to the top surface of the piston disc box, the conical tap is matched with the contact spring piece, and the conical tap A driving motor is fixedly installed on the bottom surface of the head inner cavity, a plug-in tube located in the middle is fixedly installed on the bottom surface of the piston disc box, a fixed sliding hole is opened on the side of the plug-in tube, the plug-in tube is movably inserted into the inside of the fixed perforation, a fixed sliding piece is fixedly connected to the inner wall of the fixed perforation, the fixed sliding piece is slidably inserted into the inside of the fixed sliding hole, the outside of the plug-in tube is movably sleeved with a sealing and straightening tube, the top end of the sealing and straightening tube is fixedly connected to the bottom surface of the closing plug, the bottom end of the plug-in tube is connected with a linkage line, the bottom end of the linkage line extends to the inside of the leachate collection tube and is fixedly connected with a counterweight float.

[0013] Preferably, it also includes an adjusting mechanism, which includes a carrying frame, the carrying frame is fixedly connected to the inner wall of the plug-in tube, a rotating rod is movably sleeved on the top surface of the carrying frame, a winding wheel is fixedly sleeved on the outside of the rotating rod, the end of the linkage line extends to the inside of the plug-in tube and is wound around the outside of the winding wheel, the top of the rotating rod is fixedly connected to a cylindrical shell, the cylindrical shell is movably inserted into the inside of the plug-in tube, a transmission rod is movably sleeved on the bottom surface of the inner cavity of the cylindrical shell, the top of the transmission rod passes through the piston disc box and extends to the inside of the conical tapping head and is fixedly connected to the bottom end of the output shaft on the driving motor, the limit gear is fixedly sleeved on the outside of the transmission rod, the outside of the transmission rod is movably sleeved with a torsion spring located inside the cylindrical shell, one end of the torsion spring is fixedly connected to the inner wall of the cylindrical shell, the other end of the torsion spring is fixedly connected to the surface of the transmission rod, the outside of the transmission rod is fixedly sleeved with a rotating disk located above the torsion spring, the rotating disk is slidably connected to the inner wall of the plug-in tube, and the rotating disk is slidably connected to the top surface of the cylindrical shell.

[0014] Preferably, it also includes a pressure-maintaining structure, which includes a pressure-maintaining column, which is fixedly connected to the pipeline of the air inflation pipe and is located inside the installation cavity, a pressure-maintaining cavity is provided inside the pressure-maintaining column, the pressure-maintaining cavity is fixedly connected to the air inflation pipe, an air pressure sensor is fixedly inserted on the top surface of the pressure-maintaining column, the air pressure sensor is connected to the pressure-maintaining cavity, an air release cavity located below the pressure-maintaining cavity is provided inside the pressure-maintaining column, an air release groove located at the bottom end of the air release cavity is provided on the inner wall of the air release cavity, an air vent connected to the air release cavity is provided on the bottom surface of the inner cavity of the pressure-maintaining cavity, an air-closing piston is connected to the bottom surface of the inner cavity of the air release cavity through a pressure-maintaining spring transmission, the air-closing piston is slidably connected to the inner wall of the air release cavity, a positioning rod is fixedly connected to the bottom surface of the air-closing piston, an electromagnetic valve is fixedly installed on the bottom surface of the pressure-maintaining column, and the electromagnetic valve is connected to the air release cavity.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] Leachate can be recovered through the landfill, and can be stored through the leachate collecting piece. The starting structure can be set through the adjusting mechanism so as to set the height that the liquid level can reach according to the actual situation of the landfill. The starting structure can monitor the liquid level of the leachate in real time so as to open the inflation structure when the liquid level reaches the set height. The port of the reinforcement pipe can be blocked by the inflation structure, and at the same time, the inflation structure can fill the interior of the reinjection mechanism with high-pressure gas, so that the reinjection mechanism can lift the leachate inside the leachate collecting piece to a high place under the action of the air pressure difference. The leachate reverse osms into the landfill at a high position to achieve the purpose of reinjection of the leachate. In this way, the collection well and the reinjection well are combined into one, the number of wells in the landfill is reduced, and the adverse effects caused by too dense and too combed wells are avoided, thereby improving the practicability of the leachate collection, treatment and reinjection device applied to the landfill. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the present invention;

[0019] Figure 2 For the present invention Figure 1 Schematic diagram of the internal structure of the leachate collecting part;

[0020] Figure 3 For the present invention Figure 2 Structural diagram of the middle recharging mechanism;

[0021] Figure 4 For the present invention Figure 3 Schematic diagram of the internal structure;

[0022] Figure 5 For the present invention Figure 2 Schematic diagram of the internal structure of the middle air-blowing structure;

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of the internal structure of the startup structure;

[0024] Figure 7 For the present invention Figure 5 Schematic diagram of the internal structure of the medium pressure-maintaining structure.

[0025] Description of the numbers in the figure:

[0026] 1. Landfill; 11. Landfill layer; 12. Sealing cover layer; 13. Collection shaft; 14. Filter gravel layer; 15. Reinforcement pipe; 2. Leachate collector; 21. Leachate collection tube; 22. Leachate collection hole; 23. Positioning tube; 24. Diverter air pipe; 3. Reinjection mechanism; 31. Elastic rubber tube; 32. Sealing piston; 33. Distance rod; 34. Pull spring; 4. Inflating structure; 401. Closing plug; 402. Liquid level contactor; 403. Adjusting vertical cavity; 404. Contact spring; 405. Threading channel; 406. Installation cavity; 407. Air vent; 408. Rain cap; 409. Intelligent controller; 410. Air blower; 411. Inflating pipe; 5. Starting structure; 500. Lifting spring; 501 , piston disc box; 502, electromagnetic latch; 503, limit gear; 504, conical tapping head; 505, driving motor; 506, plug-in tube; 507, fixed sliding hole; 508, fixed perforation; 509, fixed slide; 510, sealed straightening tube; 511, linkage line; 512, counterweight float; 6, adjustment mechanism; 61, carrier frame; 62, rotating rod; 63, winding wheel; 64, cylindrical shell; 65, transmission rod; 66, torque spring; 67, rotating disc; 7, pressure-maintaining structure; 701, pressure-maintaining column; 702, pressure-maintaining chamber; 703, air pressure sensor; 704, air release chamber; 705, air release groove; 706, air vent; 707, pressure-maintaining spring; 708, air-closing piston; 709, positioning rod; 710, electromagnetic valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-7A leachate collection, treatment and reinjection device for use in a landfill comprises a landfill pile 1, the landfill pile 1 comprises a landfill layer 11, a sealing covering layer 12 is laid on the top surface of the landfill layer 11, a collecting shaft 13 is opened inside the landfill layer 11, the top of the collecting shaft 13 extends to the inside of the sealing covering layer 12, a filtering gravel layer 14 is provided on the inner wall of the collecting shaft 13, a reinforcing pipe 15 is provided on the top of the filtering gravel layer 14, the reinforcing pipe 15 is fixedly connected to the inner wall of the collecting shaft 13, the reinforcing pipe 15 is fixedly inserted in the inside of the sealing covering layer 12, the top of the reinforcing pipe 15 is flush with the top surface of the sealing covering layer 12, a leachate collecting piece 2 is fixedly installed inside the filtering gravel layer 14, the top of the leachate collecting piece 2 is fixedly inserted in the inside of the reinforcing pipe 15, an air inflation structure 4 is movably inserted inside the reinforcing pipe 15, and the bottom end of the air inflation structure 4 is connected to the top surface of the leachate collecting piece 2.

[0029] The leachate collecting member 2 comprises a leachate collecting cylinder 21, on the surface of which a leachate collecting hole 22 fixedly connected to the inner cavity of the leachate collecting cylinder 21 is provided, on the bottom surface of the inner cavity of the leachate collecting cylinder 21 a positioning cylinder 23 is fixedly installed, on the surface of which a diversion air pipe 24 is provided.

[0030] It also includes a recharging mechanism 3, which includes an elastic rubber tube 31. The elastic rubber tube 31 is movably sleeved on the outside of the positioning tube 23. The elastic rubber tube 31 is slidably connected to the inner wall of the leachate collecting tube 21. The bottom end of the elastic rubber tube 31 is fixedly connected to the bottom surface of the inner cavity of the leachate collecting tube 21. The top end of the elastic rubber tube 31 is fixedly connected to a sealing piston 32. The sealing piston 32 is slidably connected to the inner wall of the leachate collecting tube 21. A distance rod 33 is fixedly connected to the top surface of the sealing piston 32. A pulling spring 34 is fixedly connected to the bottom surface of the sealing piston 32. The bottom end of the pulling spring 34 is fixedly connected to the bottom surface of the inner cavity of the leachate collecting tube 21.

[0031] The air-blowing structure 4 includes a closing plug 401, which is movably inserted into the interior of the reinforcement tube 15, and the bottom surface of the closing plug 401 is in contact with the top surface of the leachate collecting tube 21. A liquid level contactor 402 located at its left end is fixedly embedded on the bottom surface of the closing plug 401. The liquid level contactor 402, the contact spring 404, the air blower 410, the drive motor 505, the air pressure sensor 703, the electromagnetic air valve 710 and the intelligent controller 409 are electrically connected. The closing plug 401 is provided with an adjusting vertical cavity 403 located in the middle thereof, and a threading channel 405 is provided on the inner wall of the adjusting vertical cavity 403. A contact spring 404 located above the threading channel 405 is fixedly connected to the inner wall of the adjusting vertical cavity 403. There are two contact springs 404, which are arranged up and down. The closing plug 401 is provided with an adjusting vertical cavity 403 located in the middle thereof. There is an installation cavity 406 located at its top, and the installation cavity 406 is connected with the threading channel 405. An air vent 407 located at its top is opened on the side of the closing plug 401, and the air vent 407 is fixedly connected with the installation cavity 406. A rain shield 408 located at its top is fixedly sleeved on the outer surface of the closing plug 401. An intelligent controller 409 located at its left end is fixedly installed on the bottom surface of the inner cavity of the installation cavity 406. An air blower 410 located in the middle is fixedly installed on the bottom surface of the inner cavity of the installation cavity 406, and an air blowing pipe 411 is fixedly connected to the right side surface of the air blowing pipe 411. The other end of the air blowing pipe 411 extends to the outside of the closing plug 401 and is inserted into the inside of the sealing covering layer 12 and the landfill layer 11 and is fixedly connected to the bottom surface of the leachate collecting tube 21. The end of the air blowing pipe 411 is fixedly connected to the bottom end of the positioning tube 23.

[0032] The starting structure 5 is also included. The starting structure 5 includes a lifting spring 500 and a fixed through hole 508. The fixed through hole 508 is provided on the bottom surface of the inner cavity of the adjusting vertical cavity 403. The lifting spring 500 is movably plugged into the inner cavity of the adjusting vertical cavity 403. The bottom end of the lifting spring 500 is fixedly connected to the bottom surface of the inner cavity of the adjusting vertical cavity 403. The top of the lifting spring 500 is fixedly connected to a piston disc box 501. An electromagnetic latch 502 is fixedly installed on the inner wall of the piston disc box 501. A limiting gear 503 is provided inside the piston disc box 501. The limiting gear 503 is matched with the electromagnetic latch 502. A conical tapping head 504 is fixedly connected to the top surface of the piston disc box 501. The conical tapping head 504 is matched with the contact spring 404. The conical tapping head 50 A driving motor 505 is fixedly installed on the bottom surface of the inner cavity, a plug-in tube 506 located in the middle thereof is fixedly installed on the bottom surface of the piston disc box 501, a fixed sliding hole 507 is opened on the side of the plug-in tube 506, the plug-in tube 506 is movably inserted into the inside of the fixed through hole 508, a fixed slide 509 is fixedly connected to the inner wall of the fixed through hole 508, the fixed slide 509 is slidably inserted into the inside of the fixed sliding hole 507, the outside of the plug-in tube 506 is movably sleeved with a sealing and stabilizing tube 510, the top end of the sealing and stabilizing tube 510 is fixedly connected to the bottom surface of the closing plug 401, the bottom end of the plug-in tube 506 is connected to a linkage line 511, the bottom end of the linkage line 511 extends to the inside of the leachate collecting cylinder 21 and is fixedly connected to a counterweight float 512.

[0033] The adjusting mechanism 6 also includes a carrier 61, which is fixedly connected to the inner wall of the plug-in tube 506. A rotating rod 62 is movably sleeved on the top surface of the carrier 61, and a winding wheel 63 is fixedly sleeved on the outside of the rotating rod 62. The end of the linkage line 511 extends to the inside of the plug-in tube 506 and is wound around the outside of the winding wheel 63. A cylindrical casing 64 is fixedly connected to the top of the rotating rod 62, and the cylindrical casing 64 is movably inserted into the inside of the plug-in tube 506. A transmission rod 65 is movably sleeved on the bottom surface of the inner cavity of the cylindrical casing 64. The top of the transmission rod 65 passes through the piston disc box 501 and extends to the cone. The inside of the shaped tapping head 504 is fixedly connected to the bottom end of the output shaft on the driving motor 505, the limit gear 503 is fixedly sleeved on the outside of the transmission rod 65, the outside of the transmission rod 65 is movably sleeved with a torsion spring 66 located inside the cylindrical casing 64, one end of the torsion spring 66 is fixedly connected to the inner wall of the cylindrical casing 64, the other end of the torsion spring 66 is fixedly connected to the surface of the transmission rod 65, the outside of the transmission rod 65 is fixedly sleeved with a rotating disk 67 located above the torsion spring 66, the rotating disk 67 is slidably connected to the inner wall of the plug-in tube 506, and the rotating disk 67 is slidably connected to the top surface of the cylindrical casing 64.

[0034] The pressure-maintaining structure 7 further includes a pressure-maintaining column 701, which is fixedly connected to the pipeline of the air-blow pipe 411 and is located inside the installation cavity 406. A pressure-maintaining cavity 702 is provided inside the pressure-maintaining column 701, and the pressure-maintaining cavity 702 is fixedly connected to the air-blow pipe 411. An air pressure sensor 703 is fixedly connected to the top surface of the pressure-maintaining column 701, and the air pressure sensor 703 is connected to the pressure-maintaining cavity 702. An air release cavity 704 is provided inside the pressure-maintaining column 701 and is located below the pressure-maintaining cavity 702. 4 is provided with an air release groove 705 at its bottom end, and an air vent 706 communicating with the air release chamber 704 is provided on the bottom surface of the inner cavity of the pressure-maintaining chamber 702. The bottom surface of the inner cavity of the air release chamber 704 is connected with an air-blocking piston 708 through a pressure-maintaining spring 707. The air-blocking piston 708 is slidably connected to the inner wall of the air release chamber 704, and a positioning rod 709 is fixedly connected to the bottom surface of the air-blocking piston 708. An electromagnetic valve 710 is fixedly installed on the bottom surface of the pressure-maintaining column 701, and the electromagnetic valve 710 is connected with the air release chamber 704.

[0035] Working principle:

[0036] First, the natural height of the leachate level is obtained through the liquid level meter installed in the landfill, and then a command is sent to the intelligent controller 409, and then the intelligent controller 409 controls the electromagnetic plug 502 to operate, so that the electromagnetic plug 502 is separated from the limit gear 503, and then the intelligent controller 409 controls the drive motor 505 to operate, and then the drive motor 505 drives the transmission rod 65 to rotate, and then the transmission rod 65 drives the rotating disk 67 to rotate, and at the same time, the transmission rod 65 drives the cylindrical casing 64 to rotate through the torsion spring 66, and then the cylindrical casing 64 drives the rotating rod 62 to rotate, and then the rotating rod 62 drives the winding wheel 63 to rotate, and then the linkage line 511 is wound around the outside of the winding wheel 63 or the linkage line 511 is released from the outside of the winding wheel 63, and the linkage line 511 is wound around the outside of the winding wheel 63. 1 is released to control the position of the weighted float 512, so that the weighted float 512 is located below the natural liquid level of the leachate, and then the intelligent controller 409 controls the driving motor 505 to stop running, and then the intelligent controller 409 controls the electromagnetic latch 502 to stop running, and then the electromagnetic latch 502 is engaged with the limit gear 503, and then the transmission rod 65 is fixed, and then the leachate generated inside the landfill layer 11 passes through the internal gap of the filtering gravel layer 14 and the leachate collecting hole 22 to enter the leachate collecting cylinder 21, and then the leachate gathers above the sealing piston 32, and then the liquid level of the leachate inside the leachate collecting cylinder 21 gradually rises, and then the weighted float 512 is immersed in the leachate and is subjected to buoyancy, and then the weighted float 512 The downward pulling force applied to the piston disc box 501 by the linkage line 511, the winding wheel 63, the rotating rod 62, the carrier frame 61, and the plug-in tube 506 is reduced, and then the piston disc box 501 moves upward under the action of the elastic force of the lifting spring 500, and then the piston disc box 501 moves upward with the conical tapping head 504, and then the conical tapping head 504 applies an upward lifting force to the contact spring 404, and then the contact spring 404 bends upward and contacts another contact spring 404, and then the intelligent controller 409 detects this situation and controls the operation of the blower 410, and then the air is driven by the blower 410 through the air vent 407, the blower 410, the pressure maintaining structure 7, and the air blowing tube 411 into the positioning cylinder 23 and is discharged from the diversion air pipe 24 The air pressure inside the elastic rubber tube 31 increases, and then the sealing piston 32 moves upward under the action of the air pressure lifting force, and then the sealing piston 32 pulls the elastic rubber tube 31, and the elastic rubber tube 31 elastically stretches in the vertical direction. At the same time, the elastic rubber tube 31 fits on the inner wall of the leachate collecting cylinder 21 under the action of the air pressure, and then the sealing piston 32 pushes the leachate on its top to move upward to a high position, and at the same time, the elastic rubber tube 31 blocks the leachate collecting hole 22 under the sealing piston 32. In this process, the counterweight float 512 rises with the liquid level, and the cylindrical casing 64 rotates with the winding wheel 63 through the rotating rod 62 under the action of the torsion of the torsion spring 66, so that the linkage line 511 is wound around the outside of the winding wheel 63.Ensure that the linkage line 511 is in a taut state, then the liquid surface contactor 402 contacts the liquid surface, and then the liquid surface contactor 402 sends an electrical signal to the intelligent controller 409, so that the intelligent controller 409 knows that the leachate liquid surface contacts the bottom surface of the closing plug 401, and then the sealing piston 32 continues to move upward under the action of the air pressure, and the air pressure sensor 703 monitors the air pressure inside the elastic rubber tube 31 in real time. At this time, the intelligent controller 409 can control the pressure of the sealing piston 32 on the leachate column as needed, and then control the recharging speed, and then the sealing piston 32 squeezes the leachate column, and then the leachate at a high position passes through the leachate collection hole 22 and the internal gap of the filter gravel layer 14 to reverse osmosis to the inside of the landfill layer 11 to achieve the recharging effect, and then the top of the distance rod 33 contacts the bottom surface of the closing plug 401, and then the leachate continues to be recharged at a high position, and then the liquid level drops, and then the liquid surface contactor 402 separates from the liquid surface, and then the intelligent controller 409 controls the blower 410 to close The electromagnetic valve 710 is controlled to open, and then the gas inside the elastic rubber tube 31 passes through the shunt air pipe 24, the positioning cylinder 23, the air inflation pipe 411, the pressure-maintaining chamber 702, the vent hole 706 under the action of the pressure difference and acts on the top surface of the air-closing piston 708. Then the air-closing piston 708 moves downward under the action of the pressure difference, and then the air-closing piston 708 moves downward with the positioning rod 709, and then the bottom end of the positioning rod 709 rests on the bottom surface of the inner cavity of the air-releasing chamber 704. At this time, the air-closing piston 708 The cavities on the upper and lower sides are connected through the air release groove 705, and then the high-pressure gas is released from the electromagnetic valve 710, and then the air pressure difference between the upper and lower sides of the air-closing piston 708 gradually decreases, and then the air-closing piston 708 moves upward under the elastic force of the pressure-retaining spring 707 and blocks the top of the air release cavity 704. At the same time, the sealing piston 32 moves downward under the elastic tension of the elastic rubber tube 31 and the pulling spring 34 until the bottom surface of the sealing piston 32 contacts the top surface of the positioning cylinder 23.

[0037] The above is only a preferred specific implementation manner of the present invention; but the protection scope of the present invention is not limited thereto; any technician familiar with the technical field within the technical scope disclosed by the present invention; any equivalent replacement or change based on the technical solution and improved concept of the present invention shall be covered by the protection scope of the present invention.

Claims

1. A leachate collection, treatment and recharging device for use in a landfill, comprising a landfill pile (1), characterized in that: The landfill (1) comprises a landfill layer (11), a sealing cover layer (12) is laid on the top surface of the landfill layer (11), a collecting shaft (13) is opened inside the landfill layer (11), the top end of the collecting shaft (13) extends to the inside of the sealing cover layer (12), a filtering gravel layer (14) is provided on the inner wall of the collecting shaft (13), a reinforcing pipe (15) is provided at the top end of the filtering gravel layer (14), and the reinforcing pipe (15) and the collecting shaft (13) are connected to each other. The inner wall is fixedly connected, the reinforcement pipe (15) is fixedly inserted into the interior of the sealing cover layer (12), the top end of the reinforcement pipe (15) is flush with the top surface of the sealing cover layer (12), a leachate collecting piece (2) is fixedly installed inside the filtering gravel layer (14), the top end of the leachate collecting piece (2) is fixedly inserted into the interior of the reinforcement pipe (15), and an air-inflating structure (4) is movably inserted into the interior of the reinforcement pipe (15), and the bottom end of the air-inflating structure (4) is connected to the top surface of the leachate collecting piece (2); The leachate collecting member (2) comprises a leachate collecting cylinder (21), a leachate collecting hole (22) fixedly connected to the inner cavity of the leachate collecting cylinder (21) is provided on the surface of the leachate collecting cylinder (21), a positioning cylinder (23) is fixedly installed on the bottom surface of the inner cavity of the leachate collecting cylinder (21), and a shunt air pipe (24) is provided on the surface of the positioning cylinder (23); and a recharging mechanism (3) is also included, the recharging mechanism (3) comprising an elastic rubber tube (31), the elastic rubber tube (31) is movably sleeved on the outside of the positioning cylinder (23), and the elastic rubber tube (31) is connected to the leachate collecting cylinder (21). The inner wall of the collecting cylinder (21) is slidably connected, the bottom end of the elastic rubber tube (31) is fixedly connected to the bottom surface of the inner cavity of the leachate collecting cylinder (21), the top end of the elastic rubber tube (31) is fixedly connected to a sealing piston (32), the sealing piston (32) is slidably connected to the inner wall of the leachate collecting cylinder (21), the top surface of the sealing piston (32) is fixedly connected to a distance rod (33), the bottom surface of the sealing piston (32) is fixedly connected to a pulling spring (34), and the bottom end of the pulling spring (34) is fixedly connected to the bottom surface of the inner cavity of the leachate collecting cylinder (21); The aeration structure (4) comprises a closing plug (401), the closing plug (401) is movably inserted into the interior of the reinforcement pipe (15), the bottom surface of the closing plug (401) is in contact with the top surface of the leachate collecting cylinder (21), a liquid level contactor (402) located at the left end of the closing plug (401) is fixedly embedded on the bottom surface of the closing plug (401), and an adjusting vertical chamber (403) is provided in the middle of the closing plug (401), and the adjusting vertical chamber (403) A threading channel (405) is provided on the inner wall of the adjusting vertical cavity (403), and a contact spring (404) located above the threading channel (405) is fixedly connected to the inner wall of the adjusting vertical cavity (403), and the number of the contact springs (404) is two, and the two contact springs (404) are arranged up and down. The interior of the closing plug (401) is provided with an installation cavity (406) located at the top thereof, and the installation cavity (406) is communicated with the threading channel (405). The closing plug (401) 1) is provided with an air vent (407) at the top thereof, the air vent (407) is fixedly connected to the installation cavity (406), a rain cap (408) at the top thereof is fixedly sleeved on the outer surface of the closing plug (401), an intelligent controller (409) located at the left end thereof is fixedly installed on the bottom surface of the inner cavity of the installation cavity (406), an air blower (410) located in the middle thereof is fixedly installed on the bottom surface of the inner cavity of the installation cavity (406), an air blower (411) is fixedly connected to the right side surface of the air blower (410), a pressure-maintaining structure (7) is provided on the air blower (411), the other end of the air blower (411) extends to the outside of the closing plug (401) and is inserted into the inside of the sealing covering layer (12) and the landfill layer (11) and is fixedly connected to the bottom surface of the leachate collecting tube (21), and the end of the air blower (411) is fixedly connected to the bottom end of the positioning tube (23);The invention also comprises a starting structure (5), wherein the starting structure (5) comprises a lifting spring (500) and a fixed through hole (508), wherein the fixed through hole (508) is provided on the bottom surface of the inner cavity of the adjusting vertical cavity (403), the lifting spring (500) is movably plugged into the inner cavity of the adjusting vertical cavity (403), the bottom end of the lifting spring (500) is fixedly connected to the bottom surface of the inner cavity of the adjusting vertical cavity (403), the top end of the lifting spring (500) is fixedly connected to a piston disc box (501), an electromagnetic latch (502) is fixedly installed on the inner wall of the piston disc box (501), a limiting gear (503) is provided inside the piston disc box (501), the limiting gear (503) is matched with the electromagnetic latch (502), a conical tapping head (504) is fixedly connected to the top surface of the piston disc box (501), the conical tapping head (504) is matched with the contact spring (404), and the conical tapping head A driving motor (505) is fixedly installed on the bottom surface of the inner cavity (504), a plug-in tube (506) located in the middle thereof is fixedly installed on the bottom surface of the piston disc box (501), a fixed sliding hole (507) is opened on the side of the plug-in tube (506), the plug-in tube (506) is movably plugged into the inside of the fixed through hole (508), a fixed sliding plate (509) is fixedly connected to the inner wall of the fixed through hole (508), the fixed sliding plate (509) is slidably plugged into the inside of the fixed sliding hole (507), the outside of the plug-in tube (506) is movably sleeved with a sealing and stabilizing tube (510), the top end of the sealing and stabilizing tube (510) is fixedly connected to the bottom surface of the closing plug (401), the bottom end of the plug-in tube (506) is connected with a linkage line (511), the bottom end of the linkage line (511) extends to the inside of the leachate collecting cylinder (21) and is fixedly connected with a counterweight float (512). ; 2. The leachate collection, treatment and recharging device for landfill according to claim 1, characterized in that: The adjusting mechanism (6) further comprises an adjusting frame (6), wherein the adjusting frame (6) comprises a supporting frame (61), the supporting frame (61) is fixedly connected to the inner wall of the plug-in tube (506), a rotating rod (62) is movably sleeved on the top surface of the supporting frame (61), a winding wheel (63) is fixedly sleeved on the outside of the rotating rod (62), an end of the linkage line (511) extends to the inside of the plug-in tube (506) and is wound around the outside of the winding wheel (63), a cylindrical casing (64) is fixedly connected to the top of the rotating rod (62), the cylindrical casing (64) is movably inserted into the inside of the plug-in tube (506), a transmission rod (65) is movably sleeved on the bottom surface of the inner cavity of the cylindrical casing (64), and the top end of the transmission rod (65) passes through the piston disc box (501) and extends The gear (503) extends to the inside of the conical tapping head (504) and is fixedly connected to the bottom end of the output shaft on the driving motor (505). The limit gear (503) is fixedly sleeved on the outside of the transmission rod (65). The outside of the transmission rod (65) is movably sleeved with a torsion spring (66) located inside the cylindrical casing (64). One end of the torsion spring (66) is fixedly connected to the inner wall of the cylindrical casing (64). The other end of the torsion spring (66) is fixedly connected to the surface of the transmission rod (65). The outside of the transmission rod (65) is fixedly sleeved with a rotating disk (67) located above the torsion spring (66). The rotating disk (67) is slidably connected to the inner wall of the plug-in tube (506). The rotating disk (67) is slidably connected to the top surface of the cylindrical casing (64).

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