Gas injection and extraction integrated device for aerobic treatment of refuse landfill
By designing the reciprocating movement of the driving cylinder and the gas injection mechanism, gas exchange between the gas injection chamber and the gas injection chamber is realized, and the problems of complex equipment structure and exhaust gas dissipation in the prior art are solved, which promotes garbage degradation and reduces the environment. pollute.
Patent Information
- Application Number
- CN202323102556.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-16
- Publication Date
- 2024-12-10
- Estimated Expiration
- 2033-11-16
AI Technical Summary
The equipment of the existing landfill aerobic treatment, gas injection and gas extraction integrated equipment has complex structure, and there are errors in the gas injection and gas extraction volume, resulting in some waste gas radiating from the soil and causing environmental pollution.
Design a landfill aerobic treatment, gas injection and gas pumping integrated device including a driving electric cylinder, gas injection mechanism, gas injection and exhaust gas storage tank, and drive the drive piston in the driving chamber through the driving electric cylinder. Move back and forth to realize gas exchange between the air injection chamber and the air extraction chamber, ensure that the air injection volume and air extraction volume are basically the same, and prevent exhaust gas from leaking.
Effectively prevent waste gas leakage, promote the degradation of garbage, reduce environmental pollution, simplify the equipment structure, and improve the efficiency of gas injection and exhaust.
Smart Images
Figure CN222132966U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of garbage treatment equipment, in particular to an aerobic treatment gas injection and extraction integrated device for a garbage landfill. Background Art
[0002] Landfill is a common method of waste disposal. In the degradation process of landfill materials, in order to increase the degradation rate, artificial intervention is usually carried out to introduce oxygen into the landfill to speed up the degradation; and after the oxygen is injected and the degradation is completed, it is usually necessary to extract the degraded waste gas, turbid gas, and waste gas with volatile organic matter from the bottom.
[0003] In the prior art, a Chinese patent with publication number CN211965327U provides an integrated aerobic treatment gas injection and exhaust device for a landfill, comprising a set of gas injection pipes and exhaust pipes, wherein the gas injection pipes are arranged inside the exhaust pipes so that the two form a concentric double-tube structure, the double-tube structure extends vertically into the bottom of the landfill, and the bottom of the gas injection pipe located inside also has a plurality of gas injection extension pipes extending laterally outward; and the upper end of the gas injection extension pipe is provided with a gas injection port.
[0004] The oxygen injected from the gas injection device of the device will be injected from the gas injection extension pipes extending in all directions, and the gas injection range will be significantly increased. However, the device needs to be equipped with a gas injection device and a gas extraction device to perform gas injection and gas extraction operations respectively. The equipment structure is relatively more complicated, and there are errors in the gas extraction volume and gas injection volume, which causes some waste gas to be emitted from the soil and cause environmental pollution. Utility Model Content
[0005] The purpose of the utility model is to provide an aerobic treatment gas injection and extraction integrated device for landfills to address the deficiencies of the prior art.
[0006] It includes a driving electric cylinder, a pumping and injection mechanism, a pumping pipeline, a pumping pipeline and a waste gas storage tank. The driving electric cylinder is connected to the pumping and injection mechanism. The pumping and injection mechanism includes an injection chamber, a driving chamber, a pumping chamber and a driving piston. The driving piston is slidably arranged in the driving chamber. The driving electric cylinder is connected to the driving piston. The injection chamber and the pumping chamber are respectively arranged on both sides of the driving chamber. The pumping pipeline is connected to the pumping chamber. A one-way valve is arranged between the pumping pipeline and the pumping chamber to limit the airflow from the pumping pipeline to enter the pumping chamber in one direction. Inside, the gas injection pipeline is connected to the gas injection cavity, a one-way valve is arranged between the gas injection pipeline and the gas injection cavity to limit the airflow to enter the gas injection pipeline from the gas injection cavity in one direction, an air inlet is arranged on the gas injection cavity, a one-way valve is arranged between the air inlet and the gas injection cavity to limit the airflow to enter the gas injection cavity from the air inlet in one direction, the waste gas storage tank is connected to the air extraction cavity, a one-way valve is arranged between the waste gas storage tank and the air extraction cavity to limit the airflow to enter the waste gas storage tank from the air extraction cavity in one direction, and the air extraction pipeline and the gas injection pipeline are both buried in the underground part of the landfill.
[0007] Furthermore, the exhaust pipeline includes an exhaust main pipe, an exhaust branch pipe and an exhaust transverse pipe. The upper end of the exhaust main pipe is connected to the exhaust chamber, and the lower end of the exhaust main pipe is provided with a plurality of vertically arranged exhaust branch pipes at intervals, and a plurality of exhaust transverse pipes are transversely arranged on each exhaust branch pipe.
[0008] Furthermore, a plurality of convex portions and concave portions are arranged at intervals on the exhaust transverse pipe.
[0009] Furthermore, the exhaust transverse pipe includes a frame layer, a filter layer and a mesh layer, the filter layer is wrapped around the frame layer, and the mesh layer is arranged around the filter layer.
[0010] Furthermore, the gas injection pipeline includes a gas injection main pipe, gas injection branches, gas injection cross pipes and a gas injection head. The gas injection main pipe is connected to the gas injection cavity. Several gas injection branches are vertically spaced apart on the gas injection main pipe, several gas injection cross pipes are horizontally spaced apart on each gas injection branch pipe, and several gas injection heads are arranged on each gas injection cross pipe.
[0011] Furthermore, a plurality of the gas injection transverse tubes and a plurality of the gas extraction transverse tubes are arranged alternately, and at least one gas extraction transverse tube is arranged above each gas injection transverse tube.
[0012] Furthermore, a pressure gauge is provided on the gas injection pipeline.
[0013] Furthermore, a filter frame is provided on the outer ring of the air inlet.
[0014] The advantages of the utility model compared with the prior art are:
[0015] In this solution, the driving electric cylinder drives the driving piston to move back and forth in the driving chamber. When the driving piston moves toward the injection chamber, the driving piston presses the gas in the driving chamber into the injection chamber and outputs it to the injection pipeline, thereby realizing the injection operation. At the same time, the exhaust gas in the exhaust pipeline is pumped into the driving chamber and the exhaust chamber, thereby realizing the exhaust operation. When the driving piston moves toward the exhaust chamber, the driving piston presses the gas in the driving chamber into the exhaust chamber and sends it to the odor storage tank for storage, and the air at the air inlet is sucked into the injection chamber for subsequent injection operations. Therefore, the injection volume and the exhaust volume are basically the same during the operation of the equipment, thereby preventing the leakage of exhaust gas and promoting the degradation of garbage. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the overall structure of this scheme;
[0017] Figure 2 is a structural schematic diagram of the gas injection pipeline;
[0018] Figure 3 It is a structural schematic diagram of the air extraction pipeline;
[0019] Figure 4 Schematic diagram of the status of the gas extraction and injection mechanism Figure 1 ;
[0020] Figure 5 Schematic diagram of the status of the gas extraction and injection mechanism Figure 2 ;
[0021] Figure 6 This is a schematic diagram of the structure of the exhaust horizontal pipe.
[0022] Figure numerals: driving electric cylinder 1, gas extraction and injection mechanism 2, gas injection chamber 21, driving chamber 22, gas extraction chamber 23, driving piston 24, gas extraction pipeline 3, gas extraction main pipe 31, gas extraction branch pipe 32, gas extraction cross pipe 33, frame layer 331, filter layer 332, mesh layer 333, gas injection pipeline 4, gas injection main pipe 41, gas injection branch pipe 42, gas injection cross pipe 43, gas injection head 44, waste gas storage tank 5, air inlet 6, air pressure gauge 7. DETAILED DESCRIPTION
[0023] Combined with Figure 1-4As shown, a landfill aerobic treatment gas injection and extraction integrated device comprises a driving electric cylinder 1, a gas extraction and injection mechanism 2, a gas extraction pipeline 3, a gas injection pipeline 4 and a waste gas storage tank 5, wherein the driving electric cylinder 1 is transmission-connected to the gas extraction and injection mechanism 2, the gas extraction and injection mechanism 2 comprises a gas injection chamber 21, a driving chamber 22, a gas extraction chamber 23 and a driving piston 24, the driving piston 24 is slidingly arranged in the driving chamber 22, the driving electric cylinder 1 is transmission-connected to the driving piston 24, a transmission rod is horizontally arranged at the output end of the driving electric cylinder 1, the transmission rod is transmission-connected to the driving piston 24, the output direction of the driving electric cylinder 1 is parallel to the axis line of the transmission rod and the axis line of the driving chamber 22, the driving electric cylinder 1 can drive the transmission rod to move laterally, and the transmission rod can drive the driving piston 24 to move laterally back and forth in the driving chamber 22;
[0024] The gas injection cavity 21 and the gas extraction cavity 23 are respectively arranged on both sides of the driving cavity 22, the gas extraction pipeline 3 is connected to the gas extraction cavity 23, a one-way valve is arranged between the gas extraction pipeline 3 and the gas extraction cavity 23 to limit the airflow from the gas extraction pipeline 3 to enter the gas extraction cavity 23 in one direction, the gas injection pipeline 4 is connected to the gas injection cavity 21, a one-way valve is arranged between the gas injection pipeline 4 and the gas injection cavity 21 to limit the airflow from the gas injection cavity 21 to enter the gas injection pipeline 4 in one direction, the gas injection cavity 21 is provided with an air inlet 6, and a one-way valve is arranged between the air inlet 6 and the gas injection cavity 21 to limit the airflow The waste gas enters the injection chamber 21 unidirectionally from the air inlet 6, and the waste gas storage tank 5 is connected to the exhaust chamber 23. A one-way valve is arranged between the waste gas storage tank 5 and the exhaust chamber 23 to limit the airflow to enter the waste gas storage tank 5 unidirectionally from the exhaust chamber 23. The reciprocating movement of the driving piston 24 can push the gas in the driving chamber 22 back and forth, thereby realizing the actions of injection and exhaust. The exhaust pipeline 3 and the injection pipeline 4 are both buried in the underground part of the landfill, and the landfill is exhausted and injected through the exhaust pipeline 3 and the injection pipeline 4.
[0025] The exhaust pipeline 3 includes an exhaust main pipe 31, an exhaust branch pipe 32 and an exhaust transverse pipe 33. The upper end of the exhaust main pipe 31 is connected to the exhaust chamber 23. The lower end of the exhaust main pipe 31 is provided with a plurality of vertically arranged exhaust branch pipes 32 at intervals. Each exhaust branch pipe 32 is provided with a plurality of exhaust transverse pipes 33 in a transverse direction.
[0026] The gas under the landfill enters through a plurality of exhaust horizontal pipes 33, and the gas in the plurality of exhaust horizontal pipes 33 enters a plurality of exhaust branch pipes 32. The gas in the plurality of exhaust branch pipes 32 is gathered into the exhaust main pipe 31, and the gas is sent into the exhaust chamber 23 and the drive chamber 22 through the exhaust main pipe 31. When the drive piston 24 returns for the next time, the gas in the exhaust chamber 23 and the drive chamber 22 is pressed into the waste gas storage tank 5 to realize the exhaust operation.
[0027] The gas injection pipeline 4 includes a gas injection main pipe 41, a gas injection branch pipe 42, a gas injection transverse pipe 43 and a gas injection head 44. The gas injection main pipe 41 is connected to the gas injection cavity 21. A plurality of gas injection branch pipes 42 are arranged vertically at intervals on the gas injection main pipe 41. A plurality of gas injection transverse pipes 43 are arranged horizontally at intervals on each gas injection branch pipe 42. A plurality of gas injection heads 44 are arranged on each gas injection transverse pipe 43.
[0028] The movement of the driving piston 24 generates suction to draw external air into the gas injection chamber 21 and the driving chamber 22 through the air inlet 6. When the driving piston 24 returns for the next time, the air in the gas injection chamber 21 and the driving chamber 22 is pressed into the gas injection main pipe 41. The air in the gas injection main pipe 41 is dispersed into several gas injection branch pipes 42. The air in the gas injection branch pipes 42 is dispersed into several gas injection cross pipes 43. The air in the gas injection cross pipe 43 enters the landfill through the gas injection head 44 thereon to realize the gas injection operation.
[0029] Preferably, a plurality of the gas injection transverse pipes 43 and a plurality of the gas extraction transverse pipes 33 are arranged alternately, and at least one gas extraction transverse pipe 33 is arranged above each gas injection transverse pipe 43. The air released by the gas injection transverse pipe 43 gradually rises after reacting with the garbage, and the waste gas can be extracted through the gas extraction transverse pipe 33 above it, thereby preventing the leakage of the waste gas. At the same time, the gas in the area is relatively pressurized, thereby promoting the extraction of the waste gas.
[0030] A filter frame is arranged on the outer circle of the air inlet 6. In the present scheme, air is injected into the landfill through the air injection pipeline 4 to promote the degradation of garbage. After a period of reaction, the waste gas is extracted from the landfill through the exhaust pipeline 3 for centralized storage. The main purpose of injecting air is to allow the oxygen in the air to contact with the garbage, so oxygen can also be directly connected to promote the occurrence of degradation reaction.
[0031] Preferably, a plurality of convex portions and concave portions are arranged at intervals on the exhaust transverse pipe 33, so as to increase the gas area that the exhaust transverse pipe 33 can contact in a relative length, thereby improving the exhaust efficiency.
[0032] Preferably, the exhaust cross pipe 33 includes a frame layer 331, a filter layer 332 and a mesh layer 333. The filter layer 332 is wrapped around the frame layer 331, and the mesh layer 333 is arranged on the periphery of the filter layer 332. The frame layer 331 can provide sufficient supporting force to ensure the structural strength of the exhaust cross pipe 33. The filter layer 332 can filter small pieces of sand and gravel entering the exhaust pipe 3 to prevent the exhaust pipe 3 from being blocked. The mesh layer 333 can provide a certain rigidity and prevent large pieces of sand and gravel from entering the exhaust pipe 3 and causing blockage.
[0033] Preferably, a pressure gauge 7 is provided on the gas injection pipeline 4, and the pressure gauge 7 can detect the air pressure in the gas injection pipeline 4 in real time. When the air pressure in the gas injection pipeline 4 is too high, the running speed of the driving electric cylinder 1 can be slowed down to prevent the gas pressure in the gas injection pipeline 4 from being too high and causing danger.
[0034] When the present invention is used, the electric cylinder 1 drives the driving piston 24 to move back and forth in the driving chamber 22.
[0035] like Figure 5 As shown, when the driving piston 24 moves toward the gas injection chamber 21, the driving piston 24 presses the gas in the driving chamber 22 into the gas injection chamber 21 and outputs it to the gas injection pipeline 4, so that the gas injection operation can be realized. At the same time, due to the movement of the driving piston 24, a negative pressure is generated in the gas extraction chamber 23, and the waste gas in the gas extraction pipeline 3 is extracted into the driving chamber 22 and the gas extraction chamber 23, so that the gas extraction operation can be realized.
[0036] like Figure 4 As shown, when the driving piston 24 moves toward the air extraction chamber 23, the driving piston 24 presses the gas in the driving chamber 22 into the air extraction chamber 23 and sends it to the odor storage tank for storage. At the same time, due to the movement of the driving piston 24, negative pressure is generated in the air injection chamber 21, and the air at the air inlet 6 is sucked into the air injection chamber 21 to facilitate the subsequent air injection operation.
[0037] During use, the reciprocating operation of the driving piston 24 can continuously perform air extraction and air injection operations to promote the degradation of garbage.
[0038] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0040] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0041] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.
Claims
1. An integrated device for aerobic treatment of landfills and air injection and extraction, It is characterized in that The invention comprises a driving electric cylinder (1), a pumping and injection mechanism (2), a pumping pipeline (3), a pumping pipeline (4) and a waste gas storage tank (5); the driving electric cylinder (1) is connected to the pumping and injection mechanism (2); the pumping and injection mechanism (2) comprises a pumping chamber (21), a driving chamber (22), a pumping chamber (23) and a driving piston (24); the driving piston (24) is slidably arranged in the driving chamber (22); the driving electric cylinder (1) is connected to the driving piston (24); the pumping chamber (21) and the pumping chamber (23) are respectively arranged on both sides of the driving chamber (22); the pumping pipeline (3) is connected to the pumping chamber (23); a one-way valve is arranged between the pumping pipeline (3) and the pumping chamber (23) to limit the flow of gas from the pumping pipeline (3) to the pumping chamber (23) The waste gas storage tank (5) is connected to the air extraction chamber (23), and a one-way valve is provided between the air injection pipe (4) and the air injection chamber (21) to limit the air flow from the air injection chamber (21) to enter the air injection pipe (4) in one direction. The air injection chamber (21) is provided with an air inlet (6), and a one-way valve is provided between the air inlet (6) and the air injection chamber (21) to limit the air flow from the air inlet (6) to enter the air injection chamber (21) in one direction. The waste gas storage tank (5) is connected to the air extraction chamber (23), and a one-way valve is provided between the waste gas storage tank (5) and the air extraction chamber (23) to limit the air flow from the air extraction chamber (23) to enter the waste gas storage tank (5) in one direction. The air extraction pipe (3) and the air injection pipe (4) are both buried in the underground part of the landfill.
2. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 1, It is characterized in that The exhaust pipeline (3) comprises an exhaust main pipe (31), exhaust branch pipes (32) and exhaust transverse pipes (33); the upper end of the exhaust main pipe (31) is connected to the exhaust chamber (23); a plurality of exhaust branch pipes (32) are arranged vertically at intervals at the lower end of the exhaust main pipe (31); and a plurality of exhaust transverse pipes (33) are arranged transversely on each exhaust branch pipe (32).
3. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 2, It is characterized in that A plurality of convex parts and concave parts are arranged at intervals on the exhaust transverse pipe (33).
4. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 2, It is characterized in that The exhaust transverse pipe (33) comprises a frame layer (331), a filter layer (332) and a mesh layer (333), wherein the filter layer (332) is wrapped around the periphery of the frame layer (331), and the mesh layer (333) is arranged around the periphery of the filter layer (332).
5. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 2, It is characterized in that The gas injection pipeline (4) comprises a gas injection main pipe (41), a gas injection branch pipe (42), a gas injection transverse pipe (43) and a gas injection head (44); the gas injection main pipe (41) is connected to the gas injection cavity (21); a plurality of gas injection branch pipes (42) are arranged vertically at intervals on the gas injection main pipe (41); a plurality of gas injection transverse pipes (43) are arranged transversely at intervals on each gas injection branch pipe (42); and a plurality of gas injection heads (44) are arranged on each gas injection transverse pipe (43).
6. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 5, It is characterized in that A plurality of the gas injection transverse tubes (43) and a plurality of the gas extraction transverse tubes (33) are arranged in a staggered manner, and at least one gas extraction transverse tube (33) is arranged above each gas injection transverse tube (43).
7. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 1, It is characterized in that The gas injection pipeline (4) is provided with a pressure gauge (7).
8. The aerobic treatment gas injection and extraction integrated device for landfill according to claim 1, It is characterized in that A filter frame is arranged on the outer ring of the air inlet (6).