CN115888356A - A filtration liquid landfill gas combination collection device for landfill yard - Google Patents

Abstract

The invention discloses a combined collecting device for percolate landfill gas of a landfill site, which comprises a combined collecting structure, wherein the combined collecting structure comprises a landfill layer, and the top surface of the landfill layer is provided with a collecting vertical shaft; can carry out instantaneous heating to magnesium hydrate solution through instantaneous heating structure, make the fixed carbon dioxide of absorption release in the magnesium hydrate solution, can be to cooling structure through cooling mechanism, the inside magnesium hydrate solution of airtight section of thick bamboo cools down, can stir the inside magnesium hydrate solution of airtight section of thick bamboo through rabbling mechanism, help increasing cooling speed, can cool down the carbon dioxide air current through cooling structure, make the steam liquefaction in the carbon dioxide and flow back in the magnesium hydrate solution, so that maintain the concentration of magnesium hydrate solution, ensure that the magnesium hydrate solution has good absorption fixed action to carbon dioxide, the practicality of this a filtration liquid landfill gas combined collection device for landfill site has been improved.

Description

A combined leachate landfill gas collection device for landfill

technical field

The invention relates to the field of garbage treatment equipment, in particular to a leachate landfill gas combined collection device used in landfills.

Background technique

Garbage disposal methods can generally be divided into several methods such as sanitary landfill, incineration, composting, etc. The landfill site is a place where garbage is piled up under the sanitary landfill method. Widely used, leachate and landfill gas are produced in landfills. Landfill gas is a mixed gas with methane and carbon dioxide as the main components produced by microbial decomposition in the landfill after domestic waste is landfilled. According to the source and composition of landfill waste, landfill gas contains 30% to 55% methane by volume and 30% to 45% carbon dioxide by volume. Methane in landfill gas is a flammable and Explosive gas can be recycled.

The existing leachate landfill gas combined collection device used in landfills is mainly composed of shafts, leachate extraction pumps, landfill gas extraction pumps, pipelines, etc., wherein the landfill gas extraction pump directly extracts the landfill gas in the shaft and transports However, landfill gas contains more carbon dioxide gas, which will occupy more space inside the collection box, resulting in less methane stored in the collection box and low recovery efficiency for methane. Therefore, it is urgently needed Design a leachate landfill gas combination collection device for landfill.

Contents of the invention

1. technical problem to be solved

In view of the existing leachate landfill gas combined collection device used in landfills in the prior art, it is mainly composed of shafts, leachate extraction pumps, landfill gas extraction pumps, pipelines, etc., wherein the landfill gas extraction pump directly extracts the shaft The landfill gas in the collection box is transported to the collection box for storage, but the landfill gas contains more carbon dioxide gas, and the carbon dioxide gas will occupy more space inside the collection box, resulting in less methane stored in the collection box. To solve the problem of low recovery efficiency, the purpose of the present invention is to provide a leachate landfill gas combined collection device for landfills, which can well solve the problems raised in the background technology.

2. Technical solution

In order to solve the above problems, the present invention adopts the following technical solutions.

A leachate landfill gas combined collection device for landfills, comprising a combined collection structure, the combined collection structure includes a landfill layer, a collection shaft is opened on the top surface of the landfill layer, and the inner wall of the collection shaft The upper part is fixedly connected with a coarse stone isolation layer, the inner wall of the coarse stone isolation layer is fixedly connected with a fine sand isolation layer, and the inner wall of the fine sand isolation layer is fixedly connected with a collection cylinder, and the collection cylinder is provided with a liquid inlet hole at the bottom thereof. The left side of the inner cavity of the collection tube is fixedly connected with a liquid level gauge, and an air inlet hole on the top of the collection tube is opened on the top of the collection tube. Drain pipe, the bottom end of the drain pipe extends to the bottom of the inner cavity of the collection tube, a drain pump is arranged on the pipeline of the drain pipe, and a rough stone covering layer is laid on the top surface of the landfill layer. A sealing covering layer is laid on the top surface, and the collection cylinder is fixedly inserted into the inside of the rough stone covering layer and the sealing covering layer.

Preferably, a charging structure is also included, the charging structure includes an isolation standpipe and a storage battery, the isolation standpipe is fixedly connected to the top surface of the sealing covering layer, and the top of the drain pipe is bent to the right and is fixedly inserted into the isolation standpipe. On the right side of the tube, the battery is located inside the isolation standpipe and is fixedly connected to the top surface of the sealing covering layer, the right side of the inner cavity of the isolation standpipe is fixedly connected to an intelligent controller, and the top of the isolation standpipe is fixedly connected to a The bearing plate is fixedly connected with a solar battery panel on the top surface of the bearing plate, the solar battery panel is electrically connected to the storage battery, the storage battery is electrically connected to the intelligent controller, and the intelligent controller is electrically connected to the detection liquid level gauge and the liquid drainage pump.

Preferably, it also includes an air distribution structure, the air distribution structure includes an air distribution flat tube, the air distribution flat tube is fixedly connected to the inner wall of the collection tube and is located between the liquid inlet hole and the air inlet hole, and the top of the air distribution flat tube There is a one-way air release valve on the surface, and an air distribution fan at the left end is fixedly installed on the top surface of the air distribution flat pipe. Connected to the top surface of the air distribution flat pipe and fixedly communicated with its inner cavity, the pipeline of the air distribution air pipe is fixedly connected with an air distribution check valve, the liquid discharge pipe runs through the air distribution flat pipe, the air distribution fan and the intelligent controller electric connect.

Preferably, it also includes a gas purification structure, the gas purification structure includes an absorption shell, the absorption shell is fixedly connected to the top surface of the gas distribution flat pipe, the absorption shell communicates with the one-way gas release valve, and the absorption shell is fixedly plugged into the sealing plug The top of the absorbing shell extends to the inside of the isolation standpipe, the bottom surface of the inner cavity of the absorbing shell is fixedly connected with a guide slope block at its right end, and the right side of the absorbing shell inner cavity is fixedly connected with a right inclined plate, absorbing The left slant plate is fixedly connected to the left side of the inner cavity of the shell, and the right slant plate and the left slant plate are stacked and distributed alternately. On the bottom surface of the inclined plate, the inside of the absorbing shell is filled with magnesium hydroxide solution, the inner wall of the absorbing shell is fixedly connected with a defogging layer on the top, and the top surface of the absorbing shell is fixedly inserted with a gas delivery pipe. Bend to the right and fixedly inserted on the right side of the isolation standpipe, the left side of the absorbing shell is fixedly installed with an air pressure sensor inside the collection tube, and the air pressure sensor is electrically connected with the intelligent controller.

Preferably, it also includes a liquid distribution structure, the liquid distribution structure includes a liquid distribution plate, the liquid distribution plate is fixedly connected to the right side of the absorption shell and is located inside the isolation standpipe, and the top surface of the liquid distribution plate is fixedly installed with Liquid distribution pump, the liquid distribution pump is electrically connected with the intelligent controller, the top of the liquid distribution pump is fixedly connected with a liquid distribution pipe, the other end of the liquid distribution pipe is fixedly connected with a liquid distribution duckbill, and the front of the liquid distribution pump is fixedly connected There is a liquid distribution inlet pipe, and the other end of the liquid distribution inlet pipe is fixedly inserted on the right side of the absorption shell and corresponds to the shielding net.

Preferably, it also includes a release structure, the release structure includes an airtight cylinder, the interior of the airtight cylinder is filled with magnesium hydroxide solution, the airtight cylinder is located inside the isolation standpipe, and the liquid cloth duckbill is fixedly inserted on the left side of the airtight cylinder On the left side of the airtight cylinder, there is an inclined flat tube fixedly connected to the bottom. The left end of the inclined flat tube is fixedly connected with the absorption shell. An electric gate valve is fixedly installed on the bottom of the inclined flat tube. The top of the electric gate valve extends to the inclined Inside the flat tube, the bottom surface of the airtight cylinder is fixedly connected with a fixed outrigger, the bottom end of the fixed outrigger is fixedly connected with the top surface of the sealing covering layer, and the left side of the inner cavity of the airtight cylinder is fixedly connected with a lower liquid level gauge , the left side of the inner cavity of the airtight cylinder is fixedly installed with an upper liquid level gauge above the lower liquid level gauge, and the electric gate valve, the lower liquid level gauge, and the upper liquid level gauge are electrically connected to the intelligent controller.

Preferably, it also includes a cooling structure, the cooling structure includes an incubator, the incubator is fixedly connected to the right side of the airtight cylinder, the left side of the inner cavity of the incubator is fixedly connected to a spiral tube, and the two ends of the spiral tube are Extending to the inside of the closed cylinder, the bottom end of the spiral tube is immersed in the magnesium hydroxide solution inside the closed cylinder, the pipeline of the spiral tube is fixedly connected with an exhaust branch pipe, and the other end of the exhaust branch pipe extends to the outside of the incubator.

Preferably, it also includes an instantaneous heating structure, the instantaneous heating structure includes a sloping deflector, the sloping deflector is fixedly connected to the left side of the inner cavity of the closed cylinder and is located above the upper liquid level gauge and at the liquid distribution duckbill Below, the top surface of the sloping guide plate is fixedly connected with a fixing bar, and a snake-shaped heating wire is fixedly plugged into the fixing bar, and the snake-shaped heating wire is electrically connected with the intelligent controller.

Preferably, it also includes a cooling mechanism, the cooling mechanism includes a refrigerator, the refrigerator is fixedly installed on the top surface of the sealed covering layer and is located below the airtight cylinder, the refrigerator is electrically connected to the intelligent controller, and the right side of the refrigerator The upper part is fixedly connected with a circulating liquid outlet pipe, and the top of the circulating liquid outlet pipe extends to the inside of the incubator and is movably inserted into the inside of the spiral tube. The top of the refrigerator is fixedly connected with a circulating liquid inlet pipe, and the other end of the circulating liquid inlet pipe Extending to the inside of the airtight cylinder and fixedly connected with spring-type heat exchange tubes, the outside of the spring-type heat exchange tubes is fixedly sleeved with installation strips, which are fixedly connected to the inner wall of the airtight cylinder. The other end is fixedly connected with a transfer pipe, and the other end of the transfer pipe extends to the inside of the incubator.

Preferably, it also includes a stirring mechanism, the stirring mechanism includes a stirring motor, the stirring motor is fixedly installed on the top surface of the airtight cylinder, the stirring motor is electrically connected with the intelligent controller, and the end of the output shaft on the stirring motor is fixedly connected with a stirring rod , the bottom end of the stirring rod extends to the inside of the airtight cylinder and runs through the swash plate and is fixedly sleeved with stirring blades, which are immersed in the magnesium hydroxide solution inside the airtight cylinder.

3. Beneficial effect

Compared with the prior art, the present invention has the advantages of:

The leachate and landfill gas can be collected through the combined collection structure, the solar energy can be converted into electrical energy through the charging structure to power the collection device, and the landfill gas can be pumped through the gas distribution structure and pumped into the gas purification structure Among them, the gas purification structure can absorb and fix the carbon dioxide in the landfill gas, remove the carbon dioxide in the landfill gas, increase the proportion of methane in the collection box, and increase the recovery efficiency of methane. The liquid distribution structure can Put the magnesium hydroxide solution inside the gas purification structure into the release structure, and the magnesium hydroxide solution can be heated instantaneously through the instantaneous heating structure, so that the carbon dioxide adsorbed and fixed in the magnesium hydroxide solution can be released, and the cooling structure can be cooled by the cooling mechanism 1. The magnesium hydroxide solution inside the closed cylinder is cooled. The magnesium hydroxide solution inside the closed cylinder can be stirred by the stirring mechanism, which helps to increase the cooling speed. The carbon dioxide gas flow can be cooled by the cooling structure, so that the steam in the carbon dioxide Liquefied and returned to the magnesium hydroxide solution, in order to maintain the concentration of the magnesium hydroxide solution, ensure that the magnesium hydroxide solution has a good adsorption and fixation effect on carbon dioxide, which helps to further increase the recovery efficiency of methane, and improves the Availability of Combined Landfill Gas Collection Devices for Leachate in Landfills.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a structural schematic diagram of the gas distribution structure in Fig. 1 of the present invention;

Fig. 3 is a schematic diagram of the internal structure of Fig. 2 of the present invention;

Fig. 4 is a schematic structural view of the release structure in Fig. 2 of the present invention;

Fig. 5 is a schematic diagram of the internal structure of Fig. 4 of the present invention;

Fig. 6 is a top view of the instantaneous heating structure in Fig. 5 of the present invention;

Fig. 7 is a top view of the installation bar in Fig. 5 of the present invention;

FIG. 8 is a schematic diagram of the internal structure of the cooling structure in FIG. 5 of the present invention.

Explanation of symbols in the figure:

1. Combined collection structure; 101, landfill layer; 102, collection shaft; 103, rough stone isolation layer; 104, fine sand isolation layer; 105, collection cylinder; 106, liquid inlet hole; 107, liquid level gauge; 108, air intake hole; 109, sealing plug; 110, drain pipe; 111, drain pump; 112, rough stone covering layer; 113, sealing covering layer; 2, charging structure; 21, isolation standpipe; 22, Battery; 23. Intelligent controller; 24. Loading board; 25. Solar panel; 3. Air distribution structure; 31. Flat tube for air distribution; 32. One-way venting valve; 33. Air distribution fan; 34. Air distribution Air duct; 35. Air distribution check valve; 4. Gas purification structure; 41. Absorption shell; 42. Guide slope block; 43. Right inclined plate; 44. Left inclined plate; 45. Shielding net; 46. Magnesium hydroxide Solution; 47. Demister layer; 48. Air pipe; 49. Air pressure sensor; 5. Liquid distribution structure; 51. Liquid distribution plate; 52. Liquid distribution pump; 53. Liquid distribution pipe; 54. Liquid distribution duckbill ;55, distribution liquid inlet pipe; 6, release structure; 61, airtight cylinder; 62, inclined flat tube; 63, electric gate valve; 64, fixed leg; 65, lower liquid level gauge; 66, upper liquid level gauge; 7 . Cooling structure; 71. Insulation box; 72. Spiral pipe; 73. Exhaust branch pipe; 8. Instantaneous heating structure; 91. Refrigerator; 92. Circulating liquid outlet pipe; 93. Circulating liquid inlet pipe; 94. Installation bar; 95. Clockwork heat exchange tube; 96. Adapter pipe; 10. Stirring mechanism; 1001. Stirring motor; 1002. Stirring rod; 1003, stirring blade.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention; obviously, the described embodiments are only some embodiments of the present invention; rather than all embodiments. Based on the embodiments of the present invention; all other embodiments obtained by persons of ordinary skill in the art without creative work; all belong to the protection scope of the present invention.

Please refer to Figures 1-8, a leachate landfill gas combined collection device for landfills, including a combined collection structure 1, the combined collection structure 1 includes a landfill layer 101, and the top surface of the landfill layer 101 A collection shaft 102 is provided, the inner wall of the collection shaft 102 is fixedly connected with a coarse stone isolation layer 103, the inner wall of the coarse stone isolation layer 103 is fixedly connected with a fine sand isolation layer 104, and the inner wall of the fine sand isolation layer 104 is fixedly connected with a collection layer. cylinder 105, the collection cylinder 105 is provided with a liquid inlet hole 106 at the bottom, the left side of the inner cavity of the collection cylinder 105 is fixedly connected with a detection liquid level gauge 107, and the collection cylinder 105 is provided with an air inlet hole at its top 108, the inside of the collection tube 105 is fixedly plugged with a sealing plug 109 at its top, the sealing plug 109 is provided with a drain pipe 110, and the bottom end of the drain pipe 110 extends to the bottom of the collection tube 105 inner cavity, and the drain tube 110 is provided with a drainage pump 111, the top surface of the landfill layer 101 is laid with a rough stone cover layer 112, the top surface of the rough stone cover layer 112 is laid with a sealing cover layer 113, and the collection tube 105 is fixedly plugged in. Inside the rough stone cover layer 112 and the sealing cover layer 113 .

It also includes a charging structure 2, the charging structure 2 includes an isolation standpipe 21 and a storage battery 22, the isolation standpipe 21 is fixedly connected to the top surface of the sealing cover layer 113, and the top of the drain pipe 110 is bent to the right and fixedly inserted into the On the right side of the isolation standpipe 21, the battery 22 is located inside the isolation standpipe 21 and is fixedly connected to the top surface of the sealing covering layer 113, and the right side of the inner cavity of the isolation standpipe 21 is fixedly connected to an intelligent controller 23 , the top of the isolation standpipe 21 is fixedly connected with a bearing plate 24, the top surface of the bearing plate 24 is fixedly connected with a solar panel 25, the solar panel 25 is electrically connected with the battery 22, the battery 22 is electrically connected with the intelligent controller 23, and the intelligent The controller 23 is electrically connected with the detection liquid level gauge 107 and the drain pump 111 .

It also includes a gas distribution structure 3, the gas distribution structure 3 includes a gas distribution flat tube 31, the gas distribution flat tube 31 is fixedly connected on the inner wall of the collection tube 105 and is located between the liquid inlet hole 106 and the air inlet hole 108, the gas distribution flat tube The top surface of the 31 is provided with a one-way venting valve 32, and the top surface of the air distribution flat pipe 31 is fixedly installed with an air distribution blower 33 positioned at its left end, and the air distribution blower 33 is fixedly connected with an air distribution duct 34. The other end of the air distribution pipe 34 is fixedly inserted on the top surface of the air distribution flat pipe 31 and is in fixed communication with its inner cavity. The pipeline of the air distribution pipe 34 is fixedly connected with an air distribution check valve 35 , and the liquid discharge pipe 110 runs through it. The air distribution flat tube 31 and the air distribution blower 33 are electrically connected with the intelligent controller 23 .

It also includes a gas purification structure 4, the gas purification structure 4 includes an absorption shell 41, the absorption shell 41 is fixedly connected to the top surface of the gas distribution flat pipe 31, the absorption shell 41 communicates with the one-way gas release valve 32, and the absorption shell 41 is fixedly inserted Inside the sealing block 109, the top of the absorbing shell 41 extends to the inside of the isolation standpipe 21, and the bottom surface of the absorbing shell 41 lumen is fixedly connected with a guide slope block 42 positioned at its right end, and the right side of the absorbing shell 41 lumen is A right slant plate 43 is fixedly connected to the upper side, and a left slant plate 44 is fixedly connected to the left side of the inner cavity of the absorption shell 41. Fixedly connected with a shielding net 45, the top of the shielding net 45 is fixedly connected to the bottom surface of a right inclined plate 43, the interior of the absorption shell 41 is filled with magnesium hydroxide solution 46, and the magnesium hydroxide solution 46 reacts with carbon dioxide to generate magnesium bicarbonate, Magnesium bicarbonate is heated and decomposed to generate magnesium hydroxide. The inner wall of the absorption shell 41 is fixedly connected with a defogging layer 47 on the top. It is bent and fixedly inserted on the right side of the isolation standpipe 21 , and the left side of the absorbing shell 41 is fixedly equipped with an air pressure sensor 49 inside the collecting tube 105 , and the air pressure sensor 49 is electrically connected with the intelligent controller 23 .

It also includes a liquid distribution structure 5, the liquid distribution structure 5 includes a liquid distribution plate 51, the liquid distribution plate 51 is fixedly connected to the right side of the absorption shell 41 and is located inside the isolation vertical pipe 21, and the top surface of the liquid distribution plate 51 is fixed A liquid distribution pump 52 is installed, and the liquid distribution pump 52 is electrically connected to the intelligent controller 23. The top of the liquid distribution pump 52 is fixedly connected with a liquid distribution pipe 53, and the other end of the liquid distribution pipe 53 is fixedly connected with a liquid distribution duckbill 54. , the front of the liquid distribution pump 52 is fixedly connected with a liquid distribution inlet pipe 55, and the other end of the liquid distribution inlet pipe 55 is fixedly plugged in on the right side of the absorption shell 41 and corresponds to the shielding net 45.

Also includes a release structure 6, the release structure 6 includes an airtight cylinder 61, the interior of the airtight cylinder 61 is filled with magnesium hydroxide solution 46, the airtight cylinder 61 is located inside the isolation standpipe 21, and the liquid distribution duckbill 54 is fixedly inserted into the airtight cylinder 61 On the left side of the airtight tube 61, the left side of the airtight tube 61 is fixedly connected with an inclined flat tube 62 at the bottom thereof, the left end of the inclined flat tube 62 is fixedly communicated with the absorption shell 41, and the bottom surface of the inclined flat tube 62 is fixedly installed with an electric motor. Gate valve 63, the top of the electric gate valve 63 extends to the inside of the inclined flat tube 62, the bottom surface of the airtight cylinder 61 is fixedly connected with a fixed leg 64, and the bottom end of the fixed leg 64 is fixedly connected to the top surface of the sealing covering layer 113, The left side of the inner cavity of the airtight cylinder 61 is fixedly connected with a lower liquid level gauge 65, and the left side of the inner cavity of the airtight cylinder 61 is fixedly equipped with an upper liquid level gauge 66 above the lower liquid level gauge 65, an electric gate valve 63, The lower liquid level gauge 65 and the upper liquid level gauge 66 are electrically connected to the intelligent controller 23 .

Also includes a cooling structure 7, the cooling structure 7 includes an insulated box 71, the insulated box 71 is fixedly connected to the right side of the airtight cylinder 61, and the left side of the insulated box 71 inner cavity is fixedly connected with a spiral tube 72, the spiral tube 72 Both ends extend to the inside of the airtight cylinder 61, the bottom end of the spiral tube 72 is immersed in the magnesium hydroxide solution 46 inside the airtight cylinder 61, the pipeline of the spiral tube 72 is fixedly connected with an exhaust branch pipe 73, and the exhaust branch pipe 73 The other end extends to the outside of the incubator 71 .

Also includes an instantaneous heating structure 8, the instantaneous heating structure 8 includes a deflector sloping plate 81, and the deflecting sloping plate 81 is fixedly connected to the left side of the inner cavity of the airtight cylinder 61 and is located above the upper liquid level gauge 66 and is located in the liquid duck. Below the mouth 54, a fixed bar 82 is fixedly connected to the top surface of the sloping guide plate 81, and a serpentine heating wire 83 is fixedly inserted into the fixed bar 82, and the serpentine heating wire 83 is electrically connected with the intelligent controller 23.

Also includes a cooling mechanism 9, the cooling mechanism 9 includes a refrigerator 91, the refrigerator 91 is fixedly installed on the top surface of the sealing cover layer 113 and is located below the airtight cylinder 61, the refrigerator 91 is electrically connected to the intelligent controller 23, and the refrigerator 91 The right side of the refrigerator is fixedly connected with a circulating liquid outlet pipe 92, and the top of the circulating liquid outlet pipe 92 extends to the inside of the incubator 71 and is movably inserted into the inside of the spiral pipe 72. The top of the refrigerator 91 is fixedly connected with a circulating liquid inlet Pipe 93, the other end of the circulating liquid inlet pipe 93 extends to the inside of the airtight cylinder 61 and is fixedly connected with a spring-type heat exchange tube 95. The outside of the spring-type heat exchange tube 95 is fixedly sleeved with a mounting strip 94, and the mounting strip 94 Fixedly connected to the inner wall of the airtight cylinder 61 , the other end of the clockwork heat exchange tube 95 is fixedly connected with a transfer pipe 96 , and the other end of the transfer pipe 96 extends to the inside of the incubator 71 .

Also comprises stirring mechanism 10, and stirring mechanism 10 comprises stirring motor 1001, and stirring motor 1001 is fixedly installed on the top surface of airtight cylinder 61, and stirring motor 1001 is electrically connected with intelligent controller 23, and the end of output shaft on stirring motor 1001 is fixedly connected There is a stirring rod 1002, the bottom end of the stirring rod 1002 extends to the inside of the airtight cylinder 61 and runs through the deflector swash plate 81 and is fixedly sleeved with a stirring blade 1003, the stirring blade 1003 is immersed in the magnesium hydroxide solution 46 inside the airtight cylinder 61 .

working principle:

Firstly, the leachate produced inside the landfill layer 101 enters the collection cylinder 105 through the internal gap of the coarse rock isolation layer 103, the internal gap of the fine sand isolation layer 104, and the liquid inlet hole 106, and then the liquid level inside the collection cylinder 105 gradually rises. Then detect the liquid level gauge 107 to monitor the liquid level height in real time, and when the liquid level height reaches the preset maximum value inside the intelligent controller 23, the detection liquid level gauge 107 sends a signal to the intelligent controller 23, and then the intelligent controller 23 controls the drain pump 111 works, then the drainage pump 111 drives the leachate to be discharged through the drainage pipe 110, and then the liquid level gradually decreases, and then when the liquid level reaches the preset minimum value inside the intelligent controller 23, the intelligent controller 23 controls the drainage pump 111 Close, so that the leachate is automatically discharged, and then the intelligent controller 23 controls the operation of the air distribution fan 33, and then the air distribution fan 33 extracts the landfill gas inside the collection cylinder 105 and passes through the air distribution duct 34 and the air distribution check valve 35 The landfill gas is pumped into the gas distribution flat pipe 31, and then the air pressure inside the collection cylinder 105 decreases, and then the air pressure sensor 49 monitors the air pressure value in real time and sends it to the intelligent controller 23, when the air pressure value is greater than the internal preset value of the intelligent controller 23 value, the intelligent controller 23 will control the operation of the air distribution fan 33, and when the air pressure value is less than the internal preset value of the intelligent controller 23, the intelligent controller 23 will control the air distribution fan 33 to stop running, so as to maintain the air pressure inside the collection tube 105. In a negative pressure state, the gas distribution flat tube 31 injects the landfill gas into the absorption shell 41 in the form of bubbles through the one-way blowing valve 32, and then the bubbles formed by the landfill gas rise in the interior of the magnesium hydroxide solution 46, Then the air bubbles gather to form a small air cavity below the junction of the right inclined plate 43 and the inner wall of the absorption shell 41, and the junction of the left inclined plate 44 and the inner wall of the absorption shell 41, which helps to increase the time that the gas stays in the magnesium hydroxide solution 46. After the effect of absorbing carbon dioxide, the small air cavity gradually expands, and then the gas inside the small air cavity overflows from the ends of the right slant plate 43 and the left slant plate 44 and is below the connection between the right slant plate 43 and the inner wall of the absorption shell 41 on the upper layer 1. A new small air cavity is formed under the connection between the left inclined plate 44 and the inner wall of the absorption shell 41. Repeat as above to make the landfill gas move upward in the magnesium hydroxide solution 46, and then the magnesium hydroxide solution 46 moves upward in the landfill gas. The carbon dioxide in it is absorbed and fixed in order to remove the carbon dioxide, and then the landfill gas from which the carbon dioxide is removed overflows from the top surface of the magnesium hydroxide solution 46 and is discharged into the collection box from the air pipe 48 after being demisted by the defogging layer 47, and then intelligently controlled The device 23 controls the operation of the serpentine heating wire 83, and then the surface temperature of the serpentine heating wire 83 increases, and then the intelligent controller 23 controls the operation of the liquid distribution pump 52, and then absorbs the magnesium hydroxide solution 46 inside the casing 41 in the liquid distribution pump 52. Driven to spray on the surface of the serpentine heating wire 83 through the liquid distribution inlet pipe 55, the liquid distribution pump 52, the liquid distribution outlet pipe 53, and the liquid distribution duckbill 54, and then the magnesium hydroxide on the surface of the serpentine heating wire 83 The solution 46 is heated instantaneously, and then the carbon dioxide absorbed in the magnesium hydroxide solution 46 is heated and released, and then the intelligent controller 23 controls the operation of the refrigerator 91, and then the cooling liquid inside the refrigerator 91 circulates through the liquid outlet pipe 92, the incubator 71, and The connecting pipe 96, spring-type heat exchange tube 95, and circulating liquid inlet pipe 93 are circulated internally to cool down the magnesium hydroxide solution 46 inside the airtight cylinder 61 and the carbon dioxide gas flow inside the spiral tube 72, and then the steam in the carbon dioxide gas flow is liquefied and released. Flow back to the inside of the airtight cylinder 61 along the bottom surface of the inner cavity of the spiral tube 72, carbon dioxide is discharged through the exhaust branch pipe 73, and then the magnesium hydroxide solution 46 is sprinkled from the deflector swash plate 81, and then the magnesium hydroxide solution in the airtight cylinder 61 is 46 gradually increased, and then the intelligent controller 23 controls the operation of the stirring motor 1001, and then the stirring motor 1001 rotates with the stirring blade 1003 through the stirring rod 1002 to stir the magnesium hydroxide solution 46 inside the airtight cylinder 61 to accelerate cooling, and then the hydrogen oxidation The magnesium solution 46 submerges the lower liquid level gauge 65, and then the magnesium hydroxide solution 46 submerges the upper liquid level gauge 66, and then the upper liquid level gauge 66 is controlled by the intelligent controller 23 to open the electric gate valve 63, and then the hydrogen oxidization inside the airtight cylinder 61 The magnesium solution 46 flows back to the inside of the absorption shell 41 through the inclined flat tube 62, and then the liquid level of the magnesium hydroxide solution 46 inside the airtight cylinder 61 drops, and then the lower liquid level gauge 65 is exposed from the magnesium hydroxide solution 46, and then the lower liquid level The meter 65 controls the electric gate valve 63 to close through the intelligent controller 23, and then the magnesium hydroxide solution 46 inside the airtight cylinder 61 stops flowing to the inside of the absorption shell 41.

The above; is only a preferred embodiment of the present invention; but the protection scope of the present invention is not limited thereto; any person familiar with the technical field is within the technical scope disclosed in the present invention; according to the technical solution of the present invention Equivalent replacements or changes thereof and their improved concepts should be covered within the protection scope of the present invention.

Claims (6)

1. A leachate landfill gas combined collection device for landfills, comprising a combined collection structure (1), characterized in that: the combined collection structure (1) includes a landfill layer (101), and the garbage A collection shaft (102) is opened on the top surface of the buried layer (101), and a rough stone isolation layer (103) is fixedly connected to the inner wall of the collection shaft (102), and a fine stone isolation layer (103) is fixedly connected to the inner wall of the coarse stone isolation layer (103). The sand isolation layer (104), the inner wall of the fine sand isolation layer (104) is fixedly connected with a collection cylinder (105), and the collection cylinder (105) is provided with a liquid inlet hole (106) at its bottom, and the collection cylinder (105) A liquid level gauge (107) is fixedly connected to the left side of the inner cavity, and an air inlet (108) on the top of the collecting tube (105) is opened on the collecting tube (105). The top sealing plug (109), the sealing plug (109) is provided with a drain tube (110), and the bottom end of the drain tube (110) extends to the bottom of the inner cavity of the collection cylinder (105), and the drain tube (110) A drainage pump (111) is arranged on the pipeline, a rough stone covering layer (112) is laid on the top surface of the landfill layer (101), and a sealing covering layer (112) is laid on the top surface of the rough stone covering layer (112). 113), the collecting cylinder (105) is fixedly inserted in the rough stone covering layer (112) and the inside of the sealing covering layer (113). 2. A leachate landfill gas combined collection device for landfills according to claim 1, characterized in that it also includes an energizing structure (2), and the energizing structure (2) includes isolation vertical tube (21) and battery (22), the isolation standpipe (21) is fixedly connected to the top surface of the sealing cover layer (113), and the top of the drain pipe (110) is bent to the right and fixedly plugged into the isolation standpipe ( On the right side of 21), the battery (22) is located inside the isolation standpipe (21) and is fixedly connected to the top surface of the sealing cover layer (113), and the right side of the inner cavity of the isolation standpipe (21) is fixed An intelligent controller (23) is connected, a bearing plate (24) is fixedly connected to the top of the isolation standpipe (21), and a solar cell panel (25) is fixedly connected to the top surface of the bearing plate (24). 3. A leachate landfill gas combined collection device for landfill according to claim 2, characterized in that it also includes a gas distribution structure (3), and the gas distribution structure (3) includes a gas distribution structure (3) The flat tube (31), the flat tube for air distribution (31) is fixedly connected on the inner wall of the collection tube (105) and is located between the liquid inlet hole (106) and the air inlet hole (108), the flat tube for air distribution (31) A one-way venting valve (32) is provided on the top surface, and an air distribution fan (33) at the left end of the air distribution flat pipe (31) is fixedly installed on the top surface, and the air distribution fan (33) is fixedly connected with a cloth The air duct (34), the other end of the air distribution duct (34) is fixedly inserted on the top surface of the air distribution flat tube (31) and connected to its inner cavity, and the pipeline of the air distribution duct (34) is fixed It is connected with an air distribution check valve (35), and the liquid discharge pipe (110) runs through the air distribution flat pipe (31). 4. A leachate landfill gas combined collection device for landfill according to claim 3, characterized in that it also includes a gas purification structure (4), and the gas purification structure (4) includes an absorption shell (41), the absorbing shell (41) is fixedly connected to the top surface of the air distribution flat pipe (31), the absorbing shell (41) communicates with the one-way venting valve (32), and the absorbing shell (41) is fixedly inserted into the sealing The inside of the plug (109), the top of the absorption shell (41) extends to the inside of the isolation standpipe (21), and the bottom surface of the inner cavity of the absorption shell (41) is fixedly connected with a guide slope block (42) at its right end, absorbing A right slant plate (43) is fixedly connected to the right side of the inner cavity of the shell (41), and a left slant plate (44), right slant plate (43) and The left sloping plates (44) are stacked up and down and distributed alternately, the top surface of the guide slope block (42) is fixedly connected with a shading net (45), and the top of the shading net (45) is fixedly connected to the bottom surface of a right sloping plate (43) Above, the interior of the absorbing shell (41) is filled with magnesium hydroxide solution (46), and the inner wall of the absorbing shell (41) is fixedly connected with a defogging layer (47) on its top, and the top surface of the absorbing shell (41) A gas delivery pipe (48) is fixedly plugged in, and the top of the gas delivery pipe (48) bends to the right and is fixedly plugged in on the right side of the isolation standpipe (21), and the left side of the absorption shell (41) is fixedly installed with a The air pressure sensor (49) located inside the collection cylinder (105). 5. A leachate landfill gas combined collection device for landfill according to claim 4, characterized in that it also includes a liquid distribution structure (5), and the liquid distribution structure (5) includes a liquid distribution structure (5) plate (51), the liquid distribution plate (51) is fixedly connected to the right side of the absorption shell (41) and is located inside the isolation standpipe (21), and the top surface of the liquid distribution plate (51) is fixedly installed with a liquid distribution plate (51). The pump (52), the top of the liquid distribution pump (52) is fixedly connected with the liquid distribution outlet pipe (53), the other end of the liquid distribution outlet pipe (53) is fixedly connected with the liquid distribution duckbill (54), the liquid distribution pump (52 ) is fixedly connected with a liquid distribution inlet pipe (55), and the other end of the liquid distribution inlet pipe (55) is fixedly plugged in on the right side of the absorption shell (41) and corresponds to the shielding net (45). 6. A leachate landfill gas combined collection device for landfill according to claim 5, characterized in that it also includes a release structure (6), and the release structure (6) includes a closed cylinder (61 ), the airtight cylinder (61) is provided with a cooling structure (7), a heating structure (8), a cooling mechanism (9), and a stirring mechanism (10). The airtight cylinder (61) is located inside the isolation vertical pipe (21), and the The liquid duckbill (54) is fixedly inserted on the left side of the airtight tube (61), and the left side of the airtight tube (61) is fixedly connected with an inclined flat tube (62) at the bottom thereof, and the inclined flat tube (62 ) is fixedly communicated with the absorbing shell (41), and an electric gate valve (63) is fixedly installed on the bottom surface of the inclined flat tube (62). The top of the electric gate valve (63) extends to the inside of the inclined flat tube (62), and the closed The bottom surface of (61) is fixedly connected with a fixed support leg (64), and the bottom end of the fixed support leg (64) is fixedly connected with the top surface of the sealing covering layer (113), and the left side of the inner cavity of the airtight cylinder (61) A lower liquid level gauge (65) is fixedly connected on the top, and an upper liquid level gauge (66) above the lower liquid level gauge (65) is fixedly installed on the left side of the inner chamber of the airtight cylinder (61).

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