Percolate pumping and draining vertical shaft structure of refuse landfill

Abstract

The utility model relates to the technical field of refuse landfill treatment, in particular to a refuse landfill leachate pumping and draining vertical shaft structure which comprises a solid pipe section pipe well, a floral pipe section pipe well, a submersible pump and a drainage mechanism, and the drainage mechanism comprises a gravel layer, a crushed gravel layer, a plurality of drainage grooves, a gathering assembly and a covering assembly. When percolate penetrates through a gravel layer and a crushed gravel layer, flows into a plurality of branch grooves and a plurality of drainage grooves from a plurality of filter covers, quickly flows into a gathering assembly and permeates into a floral tube section tube well, and the percolate is pumped out, a submersible pump is started to pump out the percolate in the floral tube section tube well, and when the water level of the percolate is reduced, the submersible pump is started to pump out the percolate. The percolate in the distance can rapidly flow into the gathering assembly and the floral tube section tube well along the multiple branch grooves and the multiple drainage grooves, so that the efficient pumping and drainage efficiency is kept, and the effects of draining the percolate and increasing the speed of the percolate entering the tube well are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of landfill management, in particular to a vertical shaft structure for extracting leachate from a landfill. Background Art

[0002] Landfills degrade garbage by burying it, during which leachate is produced. In some rainy areas, the landfill produces more leachate, which threatens the stability of the garbage dam.

[0003] The prior art CN218580802U discloses a leachate pumping and drainage shaft structure for preventing siltation in a landfill, comprising a solid pipe section pipe shaft, a flower pipe section pipe shaft, a submersible pump, a reinforced concrete guide wall, a geocomposite drainage net, a first clean water jet pipe, a second clean water jet pipe, a liquid level automatic control device and a leachate outlet pipe, wherein the solid pipe section pipe shaft is partially buried in the soil, the flower pipe section pipe shaft is fixedly connected to the bottom of the solid pipe section pipe shaft, the submersible pump is fixedly arranged at the bottom of the flower pipe section pipe shaft, the reinforced concrete guide wall is fixedly connected to the surface of the solid pipe section pipe shaft and is located on the ground, the geocomposite drainage net is fixedly connected to the surface of the flower pipe section pipe shaft, the first clean water jet is wrapped around the flower pipe section pipe shaft, and the first clean water jet is wound around the flower pipe section pipe shaft. The surface of the flower tube section pipe well, and the input end passes through the reinforced concrete guide wall, the second clean water jet pipe is fixedly arranged in the flower tube section pipe well, the liquid level automatic control device is located in the flower tube section pipe well, the leachate outlet pipe is located in the fixed connection with the clean water pump, and the output end is located outside the solid pipe section pipe well, when the leachate level in the flower tube section pipe well reaches the set value in the liquid level automatic control device, the submersible pump is started to discharge the leachate, if the flower tube section pipe well and the geocomposite drainage net are blocked, they can be flushed through the first clean water jet pipe and the second clean water jet pipe to ensure that the leachate can enter the flower tube section pipe well, obtain the effect of pumping out the leachate and cleaning the structure.

[0004] However, the above existing technologies require waiting for the leachate to penetrate the soil before entering the pipe well. The leachate enters the pipe well at a slow speed. When emergency extraction is required in heavy rainy weather, there is a risk of leakage due to the slow flow rate of the leachate. Utility Model Content

[0005] The purpose of the utility model is to provide a vertical shaft structure for extracting leachate from a landfill, which solves the problem that the prior art requires waiting for the leachate to penetrate the soil before entering the pipe shaft, and the leachate enters the pipe shaft at a slow speed. When emergency extraction is required in heavy rainy weather, there is a risk of leakage due to the slow flow rate of the leachate.

[0006] To achieve the above-mentioned objectives, the utility model provides a landfill leachate drainage shaft structure, comprising a solid pipe section pipe shaft, a flower pipe section pipe shaft, a submersible pump and a drainage mechanism, wherein the drainage mechanism comprises a crushed stone layer, a crushed gravel layer, a plurality of drainage troughs, a convergence component and a cover component, the solid pipe section pipe shaft is partially buried in the soil, the flower pipe section pipe shaft is fixedly connected to the bottom of the solid pipe section pipe shaft, the submersible pump is fixedly arranged at the bottom of the flower pipe section pipe shaft, the gravel layer is arranged around the flower pipe section pipe shaft and is located below the landfill, the crushed gravel layer is fixedly arranged below the gravel layer, a plurality of drainage troughs are fixedly connected to the bottom of the crushed gravel layer, and are each provided with a plurality of branch grooves and filter covers, the convergence component is located outside the flower pipe section pipe shaft, and the cover component is located above the solid pipe section pipe shaft.

[0007] Among them, the convergence component includes a convergence pit, a support frame and an interception plate. The convergence pit is arranged at the bottom of the flower tube section pipe well and is connected to multiple drainage grooves. The support frame is fixedly connected to the top of the convergence pit, and the interception plate is fixedly connected to the top of the support frame.

[0008] Wherein, the covering assembly includes a manhole cover frame, a mounting frame and a mesh cover, the manhole cover frame is fixedly connected to the top of the solid pipe section shaft, the mounting frame is fixedly connected to the manhole cover frame, and the mesh cover is detachably connected to the top of the mounting frame.

[0009] In which, the covering assembly also includes a first manhole cover, a second manhole cover and a locking column. The first manhole cover is slidingly connected to the solid pipe section manhole and is located above the mesh cover. The second manhole cover is slidingly connected to the solid pipe section manhole and is located on the side away from the first manhole cover. The locking column is slidingly connected inside the first manhole cover and the second manhole cover.

[0010] Among them, the landfill leachate drainage shaft structure also includes an exhaust mechanism, which includes an exhaust port, a rotating sleeve and an exhaust pipe. The exhaust port is fixedly connected to the solid pipe section shaft and is located above the ground. The rotating sleeve is rotatably connected to the exhaust port. The exhaust pipe is fixedly connected to the inner wall of the rotating sleeve and is rotatably connected to the exhaust port.

[0011] The utility model discloses a vertical shaft structure for extracting leachate from a landfill. When leachate is generated by garbage, the leachate will pass through the crushed stone layer and the crushed gravel layer, flow from the multiple filter covers into the multiple branch grooves and the multiple drainage grooves, quickly flow into the convergence component, and seep into the flower tube section pipe well. When the leachate is extracted, the submersible pump is started to extract the leachate in the flower tube section pipe well. When the leachate water level drops, the leachate from a distant place will quickly flow into the convergence component and the flower tube section pipe well along the multiple branch grooves and the multiple drainage grooves, thereby maintaining high extraction efficiency and avoiding the need in the prior art to wait for the leachate to penetrate the soil before entering the pipe well. The speed at which the leachate enters the pipe well is slow. When emergency extraction is required in heavy rain, there is a risk of leakage due to the slow flow rate of the leachate. The effect of draining the leachate and increasing the speed at which the leachate enters the pipe well is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the present utility model.

[0014] Figure 2 It is a structural schematic diagram of the covering assembly of the first embodiment of the present utility model.

[0015] Figure 3 It is a structural diagram of the mesh cover of the first embodiment of the present utility model.

[0016] Figure 4 It is a top view of the flower tube section at the pipe well of the first embodiment of the present utility model.

[0017] Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the present utility model.

[0018] Figure 6 It is a partial cross-sectional view of the exhaust mechanism of the second embodiment of the present utility model.

[0019] 101-solid pipe section well, 102-flowered pipe section well, 103-submersible pump, 104-gravel layer, 105-crushed gravel layer, 106-drainage trough, 107-branch trough, 108-filter cover, 109-collection pit, 110-support frame, 111-interception plate, 112-well cover frame, 113-mounting frame, 114-mesh cover, 115-first well cover, 116-second well cover, 117-locking column, 201-exhaust port, 202-rotating sleeve, 203-exhaust pipe. DETAILED DESCRIPTION

[0020] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0021] The first embodiment of this application is:

[0022] See also Figures 1-4 ,in Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model; Figure 2 This is a schematic structural diagram of a cover assembly according to a first embodiment of the present invention; Figure 3 This is a schematic structural diagram of the mesh cover of the first embodiment of the present utility model; Figure 4 It is a top view of the flower tube section at the pipe well of the first embodiment of the present utility model.

[0023] The utility model provides a vertical shaft structure for extracting leachate from a landfill, comprising a solid pipe section shaft 101, a flower pipe section shaft 102, a submersible pump 103 and a drainage mechanism, wherein the drainage mechanism comprises a crushed stone layer 104, a crushed gravel layer 105, a plurality of drainage troughs 106, a convergence component and a cover component, wherein the convergence component comprises a convergence pit 109, a support frame 110 and an interception plate 111, and the cover component comprises a manhole cover frame 112, a mounting frame 113, a mesh cover 114, a first manhole cover 115, a second manhole cover 116 and a locking column 117. The above-mentioned solution solves the problem that the above-mentioned prior art needs to wait for the leachate to penetrate the soil before entering the pipe shaft, the speed at which the leachate enters the pipe shaft is slow, and when emergency extraction is required in heavy rain, there is a risk of leakage due to the slow flow rate of the leachate.

[0024] According to this specific embodiment, the solid pipe section pipe well 101 is partially buried in the soil, the flower pipe section pipe well 102 is fixedly connected to the bottom of the solid pipe section pipe well 101, the submersible pump 103 is fixedly arranged at the bottom of the flower pipe section pipe well 102, the gravel layer 104 is arranged around the flower pipe section pipe well 102 and is located below the landfill, the crushed gravel layer 105 is fixedly arranged below the gravel layer 104, a plurality of the drainage troughs 106 are fixedly connected to the bottom of the crushed gravel layer 105, and are each provided with a plurality of branch grooves 107 and filter covers 108, the convergence component is located outside the flower pipe section pipe well 102, and the covering component Located above the solid pipe section well 101, when the garbage produces leachate, the leachate will pass through the crushed stone layer 104 and the crushed gravel layer 105, and then flow from the multiple filter covers 108 into the multiple branch grooves 107 and the multiple drainage grooves 106, quickly flow into the convergence component, and infiltrate into the flower pipe section well 102. When the leachate is extracted, the submersible pump 103 is started to extract the leachate in the flower pipe section well 102. When the leachate water level drops, the leachate from far away will quickly flow into the convergence component and the flower pipe section well 102 along the multiple branch grooves 107 and the multiple drainage grooves 106, thereby maintaining high extraction efficiency.

[0025] Among them, the gathering pit 109 is arranged at the bottom of the flower tube section pipe well 102 and is connected with multiple drainage grooves 106. The support frame 110 is fixedly connected to the top of the gathering pit 109, and the interception plate 111 is fixedly connected to the top of the support frame 110. When the leachate in the flower tube section pipe well 102 decreases, the leachate in the landfill will quickly flow into the gathering pit 109 along the multiple branch grooves 107 and the multiple drainage grooves 106, and then enter the flower tube section pipe well 102. The support frame 110 and the interception plate 111 form a cavity with the gathering pit 109 to facilitate the gathering of leachate.

[0026] Secondly, the manhole cover frame 112 is fixedly connected to the top of the solid pipe section well 101, the mounting frame 113 is fixedly connected to the inside of the manhole cover frame 112, and the mesh cover 114 is detachably connected to the top of the mounting frame 113. The manhole cover frame 112 is used to install the mounting frame 113 and other components, and the mounting frame 113 is used to install the mesh cover 114 and pipes and other components. The mesh cover 114 prevents debris from falling into the well and clogging the submersible pump 103, while allowing the gas generated by the leachate to be discharged, thereby reducing the pressure in the well.

[0027] At the same time, the first manhole cover 115 is slidably connected to the solid pipe section pipe shaft 101 and is located above the mesh cover 114. The second manhole cover 116 is slidably connected to the solid pipe section pipe shaft 101 and is located on the side away from the first manhole cover 115. The locking column 117 is slidably connected to the first manhole cover 115 and the second manhole cover 116. When closing the vertical shaft, the first manhole cover 115 and the second manhole cover 116 are slid close to each other. After the first manhole cover 115 and the second manhole cover 116 are engaged, the locking column 117 is inserted into the overlapping hole of the first manhole cover 115 and the second manhole cover 116, so that the first manhole cover 115 and the second manhole cover 116 cannot be separated.

[0028] When the garbage produces leachate, the leachate will pass through the crushed stone layer 104 and the crushed gravel layer 105, and flow from the multiple filter covers 108 into the multiple branch grooves 107 and the multiple drainage grooves 106, quickly flow into the convergence component, and seep into the flower pipe section pipe well 102. When the leachate is extracted, the submersible pump 103 is started to extract the leachate in the flower pipe section pipe well 102. When the leachate water level drops, the leachate from far away will quickly flow into the convergence pit 109 along the multiple branch grooves 107 and the multiple drainage grooves 106, and then enter the flower pipe section pipe well 102, thereby maintaining high extraction efficiency; the gap between the crushed stone layer 104 and the crushed gravel layer 105 is larger than the gap in the soil, and the leachate can seep through quickly; the drainage grooves 106 and the branch grooves 107 are both hollow, and the leachate will flow into the convergence pit 109 without any obstacles; In heavy rain, the first manhole cover 115 and the second manhole cover 116 can be slid together to make them close to each other. After the first manhole cover 115 and the second manhole cover 116 are engaged, the locking column 117 is inserted into the overlapping hole of the first manhole cover 115 and the second manhole cover 116, so that the first manhole cover 115 and the second manhole cover 116 cannot be separated, and rainwater is intercepted outside the vertical shaft, reducing the difficulty of pumping and drainage; when the first manhole cover 115 and the second manhole cover 116 are opened, the mesh cover 114 will prevent debris from falling into the well to block the submersible pump 103, and discharge the gas generated by the leachate, reducing the pressure in the well, avoiding the need in the prior art to wait for the leachate to penetrate the soil before entering the pipe well. The speed at which the leachate enters the pipe well is slow. When emergency pumping is required in heavy rain, there is a risk of leakage due to the slow flow rate of the leachate. The effect of draining the leachate and increasing the speed at which the leachate enters the pipe well is achieved.

[0029] The second embodiment of this application is:

[0030] See also Figure 5-Figure 6 ,in Figure 5 It is a schematic diagram of the overall structure of the second embodiment of the utility model; Figure 6It is a partial cross-sectional view of the exhaust mechanism of the second embodiment of the present utility model.

[0031] On the basis of the first embodiment, the landfill leachate drainage shaft structure of this embodiment further includes an exhaust mechanism, which includes an exhaust port 201 , a rotating sleeve 202 and an exhaust pipe 203 .

[0032] Among them, the exhaust port 201 is fixedly connected to the solid pipe section shaft 101 and is located above the ground. The rotating sleeve 202 is rotatably connected to the exhaust port 201. The exhaust pipe 203 is fixedly connected to the inner wall of the rotating sleeve 202 and is rotatably connected to the exhaust port 201. When the manhole cover closes the vertical shaft, the gas generated by the leachate is discharged from the exhaust pipe 203 in the exhaust port 201 to avoid excessive pressure in the vertical shaft. In heavy rain, the rotating sleeve 202 is rotated, and the exhaust pipe 203 rotates with the rotating sleeve 202 with the central axis of the exhaust port 201 as the rotating axis, thereby changing the angle of the output end of the exhaust pipe 203 to prevent rainwater from entering the vertical shaft, increasing the pumping workload, and achieving the effect of exhausting when the vertical shaft is closed.

[0033] The above disclosure is merely one or more preferred embodiments of the present application and is not intended to limit the scope of the present application. A person skilled in the art will understand that all or part of the processes of the above embodiments and equivalent changes made in accordance with the claims of the present application are still within the scope of the present application.

Claims

1. A landfill leachate drainage shaft structure, comprising a solid pipe section shaft, a flowered pipe section shaft, and a submersible pump, wherein the solid pipe section shaft is partially buried in the soil, the flowered pipe section shaft is fixedly connected to the bottom of the solid pipe section shaft, and the submersible pump is fixedly arranged at the bottom of the flowered pipe section shaft, characterized in that: It also includes drainage mechanisms; The drainage mechanism includes a crushed stone layer, a crushed gravel layer, multiple drainage troughs, a convergence assembly and a cover assembly. The crushed stone layer is arranged around the flower pipe section pipe well and is located below the landfill. The crushed gravel layer is fixedly arranged below the crushed stone layer. Multiple drainage troughs are fixedly connected below the crushed gravel layer and are each provided with multiple branch troughs and filter covers. The convergence assembly is located outside the flower pipe section pipe well, and the cover assembly is located above the solid pipe section pipe well.

2. The landfill leachate drainage shaft structure according to claim 1, characterized in that: The convergence component includes a convergence pit, a support frame and an interception plate. The convergence pit is arranged at the bottom of the flower tube section pipe well and is connected to multiple drainage grooves. The support frame is fixedly connected to the top of the convergence pit, and the interception plate is fixedly connected to the top of the support frame.

3. The landfill leachate drainage shaft structure according to claim 1, characterized in that: The covering assembly includes a manhole cover frame, a mounting frame and a mesh cover. The manhole cover frame is fixedly connected to the top of the solid pipe section well. The mounting frame is fixedly connected to the manhole cover frame. The mesh cover is detachably connected to the top of the mounting frame.

4. The landfill leachate drainage shaft structure according to claim 3, characterized in that: The covering assembly also includes a first manhole cover, a second manhole cover and a locking column. The first manhole cover is slidably connected to the solid pipe section manhole and is located above the mesh cover. The second manhole cover is slidably connected to the solid pipe section manhole and is located on a side away from the first manhole cover. The locking column is slidably connected inside the first manhole cover and the second manhole cover.

5. The landfill leachate drainage shaft structure according to claim 1, characterized in that: The landfill leachate drainage shaft structure also includes an exhaust mechanism, which includes an exhaust port, a rotating sleeve and an exhaust pipe. The exhaust port is fixedly connected to the solid pipe section shaft and is located above the ground. The rotating sleeve is rotatably connected to the exhaust port. The exhaust pipe is fixedly connected to the inner wall of the rotating sleeve and is rotatably connected to the exhaust port.

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