Waste gas treatment device for refuse landfill

Abstract

The invention discloses a refuse landfill waste gas treatment device, and relates to the technical field of refuse waste gas treatment, the refuse landfill waste gas treatment device comprises a supporting base, a device shell is arranged at the top end of the supporting base, an exhaust fan is arranged in the middle of the supporting base, and an adsorption screening cylinder is arranged in the device shell; a stirring catalysis tank is arranged above the adsorption screening cylinder, a centrifugal condensation purifier is arranged above the stirring catalysis tank, and the top end of the centrifugal condensation purifier extends to the outer side of the top end of the device shell. According to the waste gas treatment device for the refuse landfill, the effects of rapidly conveying waste gas and reducing transition time between modules can be achieved through cooperation of the adsorption rotating cylinder and the air volume adaptation cylinder, the effect of enhancing cooperative work of all the modules is achieved through cooperation of the center shaft and the center shaft part in the centrifugal condensation purifier, the system cooperative capacity is improved, and the system reliability is improved. By integrating multiple treatment modes in one device and matching with the overall structural design of the device shell and the supporting base, the effect of simplifying the structure of the device is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of waste exhaust gas treatment, and particularly to a waste landfill exhaust gas treatment device. Background Art

[0002] The waste landfill exhaust gas treatment business is in the technical field of treating mixed gases such as methane, carbon dioxide, hydrogen sulfide, and volatile organic compounds generated during the waste landfill process. The core goal is to convert greenhouse gases, odor substances, and toxic pollutants in the landfill exhaust gas into harmless substances through physical, chemical, or biological means. The current mainstream technical solutions usually adopt a multi-stage composite treatment process to purify the exhaust gas through a pretreatment stage, a core reaction stage, and a deep purification stage.

[0003] However, the gas-solid contact area in the existing catalytic reactor is limited, and the treatment efficiency is low; the pretreatment, reaction, and purification modules operate independently. For example, the condensation process requires additional refrigeration equipment and does not utilize the waste heat of the catalytic reaction, resulting in insufficient equipment coordination; the traditional device requires a combination of multiple independent devices, occupies a large area, and the complex pipeline connection increases the difficulty of maintenance. The high structural complexity leads to high energy consumption and operating costs. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the present invention provides a waste landfill exhaust gas treatment device, which solves the problems of high-efficiency treatment, complex structure, and non-coordination of multiple modes.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A waste landfill exhaust gas treatment device includes a support base. A device housing is provided at the top of the support base. A suction fan is provided in the middle of the support base. An adsorption and screening cylinder is provided inside the device housing. A stirring and catalytic tank is provided above the adsorption and screening cylinder. A centrifugal condensation and purification device is provided above the stirring and catalytic tank. The top of the centrifugal condensation and purification device extends to the outside of the top of the device housing. The adsorption and screening cylinder is sleeved on the outer surface of the suction fan. The device housing includes a housing main body. The bottom end of the housing main body is fixedly connected to the top end of the support base. A waste water diversion chute is provided at the rear end of the housing main body at the horizontal plane of the bottom end of the centrifugal condensation and purification device.

[0006] Preferably, the support base includes a support bottom plate. Two support plates are fixedly connected to the top end of the support bottom plate. The top ends of the two support plates are jointly fixedly connected to the bottom end of the housing main body. An electric lifting rod is provided in the middle of the top end of the support bottom plate. The top end of the electric lifting rod is fixedly connected to a lifting plate. The left and right sides of the outer surface of the lifting plate are fixedly connected with lifting guide columns. Lifting guide grooves are provided on the opposite sides of the two support plates. The two lifting guide columns are respectively slidably connected inside the lifting guide grooves on the same side. The top end of the lifting plate is fixedly connected to the bottom end of the suction fan.

[0007] Preferably, the adsorption and screening cylinder includes an adsorption rotating cylinder, which is rotatably connected inside the main body of the housing. The adsorption rotating cylinder can be sleeved on the outer surface of the exhaust fan. A rotating impulse gear ring is fixedly connected to the middle of the outer surface of the adsorption rotating cylinder. A driving gear is meshed and connected to the rear side of the rotating impulse gear ring. The bottom end of the driving gear is rotatably connected inside the main body of the housing. A driving motor is arranged at the top end of the driving gear. The outer surface of the driving motor is fixedly connected inside the main body of the housing. A wind volume adaptation cylinder is fixedly connected to the top end inside the adsorption rotating cylinder. A number of filter and adsorption materials are fixedly connected to the middle of the outer surface of the wind volume adaptation cylinder. A screening filter screen is arranged between every two adjacent filter and adsorption materials. The middle of the screening filter screen is fixedly connected to the outer surface of the wind volume adaptation cylinder. The bottom end of the wind volume adaptation cylinder is fixedly connected to the middle output part of the top end of the exhaust fan. The outer surfaces of the filter and adsorption materials and the screening filter screen are both fixedly connected to the inside of the adsorption rotating cylinder.

[0008] Preferably, the wind volume adaptation cylinder includes a closed outer cylinder, the outer surface of which is fixedly connected to the middle of a number of filter and adsorption materials and the screening filter screen. A receiving and conveying cylinder is fixedly connected to the top end of the closed outer cylinder. The top end of the receiving and conveying cylinder is fixedly connected to the bottom end of the stirring and catalyzing tank. The inside of the receiving and conveying cylinder is communicated with the inside of the stirring and catalyzing tank. Three receiving ports are evenly arranged on the outer surface of the receiving and conveying cylinder. A wind volume control inner cylinder is sleeved inside the closed outer cylinder. A limiting ring is fixedly connected to the top end of the wind volume control inner cylinder. A number of vertical strip-shaped air outlets are arranged on the outer surface of the wind volume control inner cylinder. The closed outer cylinder is not communicated with the receiving and conveying cylinder. The bottom end of the wind volume control inner cylinder is fixedly connected to the middle output part of the top end of the exhaust fan.

[0009] Preferably, the stirring and catalyzing tank includes a catalytic reaction tank, the outer surface of which is fixedly connected inside the main body of the housing. A central shaft is rotatably connected to the middle inside the catalytic reaction tank. The top end of the central shaft extends to the outside of the top end of the catalytic reaction tank and is fixedly connected to the inside of the centrifugal condensation purifier. The bottom end of the central shaft extends to the outside of the bottom end of the catalytic reaction tank and is fixedly connected to the top end of the receiving and conveying cylinder and is communicated with it. A number of ventilation openings are respectively arranged on the upper and lower sides of the outer surface of the central shaft. The upper and lower ventilation openings are only communicated through the inner cavity of the catalytic reaction tank. A planetary stirring assembly is arranged at the top inside the catalytic reaction tank. A catalyst external interface is arranged at the bottom of the catalytic reaction tank.

[0010] Preferably, the planetary stirring assembly includes a sun gear, the inner side of the sun gear is fixedly connected to the upper side of the outer surface of the central shaft, three planetary gears are meshed and connected to the outer side of the sun gear, a support guide post is fixedly connected to the top end of the planetary gear, a support guide groove is opened at the top end inside the catalytic reaction tank, and the three support guide posts are jointly slidably connected to the inside of the support guide groove. The outer surfaces of the three planetary gears are jointly meshed and connected with a planetary gear ring, the outer surface of the planetary gear ring is fixedly connected to the upper part inside the catalytic reaction tank, a stirring column is fixedly connected to the bottom end of the planetary gear, and a stirring head is fixedly connected to the bottom end of the stirring column.

[0011] Preferably, the centrifugal condensation purifier includes a condensation reaction tank, the middle part of the outer surface of the condensation reaction tank is fixedly connected to the inside of the housing main body, the top of the condensation reaction tank is conical, an adsorption detector is arranged at the top outlet of the condensation reaction tank, the top end of the central shaft extends into the condensation reaction tank and is rotatably connected to the bottom end of the condensation reaction tank, a centrifugal rotor is fixedly connected to the top end of the central shaft, and a number of internally and externally connected diversion centrifugal holes are opened in the centrifugal rotor. All the a number of diversion centrifugal holes communicate with the inside of the central shaft. A number of condensation inner tubes passing through the inner cavity are arranged inside the condensation reaction tank. One ends of the a number of condensation inner tubes for water inlet are jointly fixedly connected to an outer water inlet pipe, the outer water inlet pipe is provided with a water inlet interface extending to the outside of the housing main body for connection, one ends of the a number of condensation inner tubes for water outlet are jointly fixedly connected to an outer water outlet pipe, the outer water outlet pipe is provided with a water outlet interface extending to the outside of the housing main body for connection, and a waste water accumulation plate is arranged at the bottom of the condensation reaction tank.

[0012] Preferably, the waste water accumulation plate includes an inclined guide groove, the inclined guide groove is opened at the bottom end at the rear side of the condensation reaction tank, a water accumulation sealing plate is fixedly connected to the bottom side of the outer surface of the condensation reaction tank, a water surface height limiting plate is fixedly connected to the outer side of the top end of the water accumulation sealing plate, a number of water absorption ports are opened on the upper side of the front end of the water surface height limiting plate, a water absorption pipe is fixedly connected to the rear end of the water surface height limiting plate, a water discharge hole is vertically penetrated through the rear side of the water accumulation sealing plate, a water discharge pipe is arranged at the bottom of the water discharge hole, and the water accumulation sealing plate extends to the outside of the housing main body through a waste water diversion inclined groove. The inclined guide groove makes the bottom inside the condensation reaction tank be an inclined plane inclined backward, and the water surface height limiting plate is higher than the highest point of the bottom inside the condensation reaction tank.

[0013] The present invention provides a waste landfill gas treatment device. Compared with the prior art, the following beneficial effects are achieved: (1) The waste landfill gas treatment device can quickly transport the waste gas and reduce the transition time between modules through the cooperation of the adsorption rotating drum and the air volume adaptation cylinder, improving the overall treatment efficiency. The air volume adaptation cylinder can adaptively adjust the corresponding air outlet size in real time according to the height position of the exhaust fan, and quickly and stably transport the preliminarily treated waste gas to the stirring catalytic tank and subsequent processes through the central axis, greatly shortening the waste gas transition time, avoiding the accumulation and blockage of waste gas between modules, and improving the overall treatment efficiency.

[0014] (2) The waste landfill gas treatment device can enhance the collaborative work of each module and improve the overall collaborative ability of the system through the cooperation of the central axis and the central axis part in the centrifugal condensation purifier. The linkage of the central axis makes the pretreatment, stirring catalytic process and centrifugal condensation process closely related, and the heat generated by the catalytic reaction can be utilized in the centrifugal condensation process, reducing the additional energy consumption, making the cooperation of each module of the entire device more smooth, and improving the system stability and treatment effect.

[0015] (3) The waste landfill gas treatment device integrates the three treatment modes of adsorption screening, stirring catalysis and centrifugal condensation in one device, and cooperates with the overall structural design of the device shell and the support base to simplify the device structure, avoid the complex pipeline connection between multiple independent devices in the traditional device, reduce the floor area of the device, make the device structure more compact, reduce the maintenance difficulty, shorten the maintenance time, and improve the maintainability of the device. Brief Description of the Drawings

[0016] Figure 1 It is a schematic structural diagram of the present invention; Figure 2 It is a cross-sectional view of the internal structure of the present invention; Figure 3 It is a schematic structural diagram of the adsorption screening cylinder of the present invention; Figure 4 It is a schematic structural diagram of the air volume adaptation cylinder of the present invention; Figure 5 It is a schematic structural diagram of the stirring catalytic tank of the present invention; Figure 6 It is a schematic structural diagram of the centrifugal condensation purifier of the present invention; Figure 7 It is a schematic structural diagram of the waste water accumulation plate of the present invention.

[0017] In the figure: 1. Centrifugal condensation purifier; 11. Adsorption detector; 12. Condensation reaction tank; 13. Condensation inner tube; 14. Water inlet outer tube; 15. Water outlet outer tube; 16. Centrifugal rotor; 17. Shunt centrifugal holes; 18. Waste water accumulation plate; 181. Inclined guide groove; 182. Accumulation sealing plate; 183. Drain pipe; 184. Drain hole; 185. Water surface height limiting plate; 186. Water suction port; 187. Water suction pipe; 2. Device housing; 21. Housing main body; 22. Waste water diversion inclined groove; 3. Stirring and catalyzing tank; 31. Planetary stirring assembly; 311. Sun gear; 312. Support guide post; 313. Planetary gear; 314. Support guide groove; 315. Planetary gear ring; 316. Stirring column; 317. Stirring head; 32. Central shaft; 33. Catalytic reaction tank; 34. Ventilation opening; 35. Catalyst outer interface; 4. Adsorption and screening cylinder; 41. Driving motor; 42. Driving gear; 43. Air volume adaptation cylinder; 431. Receiving and conveying cylinder; 432. Receiving port; 433. Enclosing outer cylinder; 434. Limit ring; 435. Air volume control inner cylinder; 436. Air outlet; 44. Filtering and adsorbing material; 45. Screening filter screen; 46. Rotating impulse gear ring; 47. Adsorption rotating cylinder; 5. Exhaust fan; 6. Support base; 61. Support plate; 62. Lifting guide groove; 63. Electric lifting rod; 64. Lifting plate; 65. Lifting guide post; 66. Support bottom plate. Detailed implementation manners

[0018] The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-7 , the embodiments of the present invention provide a technical solution: a waste landfill gas treatment device, including a support base 6, a device housing 2 is arranged at the top end of the support base 6, an exhaust fan 5 is arranged in the middle of the support base 6, an adsorption and screening cylinder 4 is arranged inside the device housing 2, a stirring and catalyzing tank 3 is arranged above the adsorption and screening cylinder 4, a centrifugal condensation purifier 1 is arranged above the stirring and catalyzing tank 3, the top end of the centrifugal condensation purifier 1 extends to the outside of the top end of the device housing 2, the adsorption and screening cylinder 4 is sleeved on the outer surface of the exhaust fan 5, the device housing 2 includes a housing main body 21, the bottom end of the housing main body 21 is fixedly connected to the top end of the support base 6, and a waste water diversion inclined groove 22 is opened at the rear end of the housing main body 21 at the horizontal plane of the bottom end of the centrifugal condensation purifier 1.

[0020] The exhaust fan 5 starts to operate, extracting waste gas from the landfill. The waste gas enters the adsorption and screening cylinder 4 sleeved outside the exhaust fan 5. Inside the adsorption and screening cylinder 4, the waste gas undergoes preliminary treatment to remove some impurities and harmful gases. The treated waste gas rises and enters the stirring and catalytic tank 3, where a catalytic reaction takes place to convert the harmful components in the waste gas into harmless or less harmful substances. The reacted gas enters the centrifugal condensation purifier 1, which further purifies the gas, removing water vapor and other impurities through condensation and other means. The wastewater generated during the purification process flows out along the wastewater diversion chute 22 of the device housing 2 for subsequent treatment. Finally, the purified gas is discharged from the top of the centrifugal condensation purifier 1 and emitted into the atmosphere after meeting the standards.

[0021] The main function of the exhaust fan 5 is to generate suction, extracting the waste gas from the landfill into the device for purification. It is the power source for air transportation and is prior art, so no further explanation is provided here.

[0022] Please refer to Figure 3 , the support base 6 includes a support bottom plate 66. At the top of the support bottom plate 66, two support plates 61 are fixedly connected. The tops of the two support plates 61 are jointly fixedly connected to the bottom end of the housing main body 21 of the device housing 2. In the middle of the top of the support bottom plate 66, an electric lifting rod 63 is provided. The top of the electric lifting rod 63 is fixedly connected to a lifting plate 64. On the left and right sides of the outer surface of the lifting plate 64, lifting guide columns 65 are fixedly connected. On the opposite sides of the two support plates 61, lifting guide grooves 62 are opened. The two lifting guide columns 65 are respectively slidably connected inside the lifting guide grooves 62 on the same side. The top of the lifting plate 64 is fixedly connected to the bottom end of the exhaust fan 5.

[0023] The support bottom plate 66 serves as the basic component of the entire support base 6, providing a stable support plane for other components. The main function of the support plates 61 is to connect the support bottom plate 66 and the housing main body 21 of the device housing 2. The electric lifting rod 63 is the driving component for adjusting the height of the exhaust fan 5. The lifting guide columns 65 and the lifting guide grooves 62 are used in cooperation to restrict the movement direction of the lifting plate 64, enabling it to only move stably in the vertical direction and preventing the lifting plate 64 from shifting or shaking during movement.

[0024] Please refer to Figure 3, the adsorption and screening cylinder 4 includes an adsorption rotating cylinder 47. The adsorption rotating cylinder 47 is rotatably connected inside the housing main body 21. The adsorption rotating cylinder 47 can be sleeved on the outer surface of the exhaust fan 5. A rotating impulse gear ring 46 is fixedly connected to the middle of the outer surface of the adsorption rotating cylinder 47. A driving gear 42 is meshed and connected to the rear side of the rotating impulse gear ring 46. The bottom end of the driving gear 42 is rotatably connected inside the housing main body 21. A driving motor 41 is arranged at the top end of the driving gear 42. The outer surface of the driving motor 41 is fixedly connected inside the housing main body 21. A wind volume adaptation cylinder 43 is fixedly connected to the top end inside the adsorption rotating cylinder 47. A number of filter adsorption materials 44 are fixedly connected to the middle of the outer surface of the wind volume adaptation cylinder 43. A screening filter screen 45 is arranged between every two adjacent filter adsorption materials 44. The middle of the screening filter screen 45 is fixedly connected to the outer surface of the wind volume adaptation cylinder 43. The bottom end of the wind volume adaptation cylinder 43 is fixedly connected to the middle output part of the top end of the exhaust fan 5. The outer surfaces of the filter adsorption materials 44 and the screening filter screen 45 are both fixedly connected to the inside of the adsorption rotating cylinder 47.

[0025] The rotation of the adsorption rotating cylinder 47 can drive the internal filter adsorption materials 44 and the screening filter screen 45 to move, enabling them to contact the waste gas in all directions, expanding the waste gas treatment area. At the same time, it can be sleeved on the outer surface of the exhaust fan 5 to adjust the inlet area of the exhaust fan 5 according to the height of the exhaust fan 5, and can transmit the rotating force to the wind volume adaptation cylinder 43 to ensure the unity of the driving force. The rotating impulse gear ring 46 and the driving gear 42 cooperate to transmit the force of the driving motor 41 to the adsorption rotating cylinder 47, enabling it to obtain the rotating power. The wind volume adaptation cylinder 43 plays a role of transition and adjustment. On the one hand, it guides the waste gas extracted by the exhaust fan 5 to the adsorption and screening area. On the other hand, according to the height of the exhaust fan 5, it adjusts the size of the exposed air outlet 436 to adjust the wind volume. The filter adsorption materials 44 and the screening filter screen 45 are mainly used to filter solid particle impurities in the waste gas and physically adsorb harmful impurities in the waste gas.

[0026] Please refer to Figure 4 , the wind volume adaptation cylinder 43 includes a closed outer cylinder 433. The outer surface of the closed outer cylinder 433 is fixedly connected to the middle of a number of filter adsorption materials 44 and the screening filter screen 45. A receiving and conveying cylinder 431 is fixedly connected to the top end of the closed outer cylinder 433. The top end of the receiving and conveying cylinder 431 is fixedly connected to the bottom end of the stirring and catalytic tank 3. The inside of the receiving and conveying cylinder 431 is communicated with the inside of the stirring and catalytic tank 3. Three receiving ports 432 are evenly arranged on the outer surface of the receiving and conveying cylinder 431. A wind volume control inner cylinder 435 is sleeved inside the closed outer cylinder 433. A limiting ring 434 is fixedly connected to the top end of the wind volume control inner cylinder 435. A number of vertical strip-shaped air outlets 436 are arranged on the outer surface of the wind volume control inner cylinder 435. The closed outer cylinder 433 is not communicated with the receiving and conveying cylinder 431. The bottom end of the wind volume control inner cylinder 435 is fixedly connected to the middle output part of the top end of the exhaust fan 5.

[0027] The closed outer cylinder 433 provides installation support for the filter adsorption material 44 and the screening filter 45, while separating different functional areas inside, preventing the direct flow of gas between the receiving and conveying cylinder 431 and the closed outer cylinder 433, ensuring that the gas flows along the set path. The receiving and conveying cylinder 431 and the receiving port 432 are used to collect the preliminarily treated exhaust gas from inside the closed outer cylinder 433 and convey it to the stirring and catalytic tank 3 to realize the connection of the exhaust gas treatment process. The air volume control inner cylinder 435 can change the intersecting area with the closed outer cylinder 433 according to the height of the exhaust fan 5, and at the same time does not prevent the closed outer cylinder 433 from rotating, so that the exhaust gas enters the inside of the adsorption rotary cylinder 47 through the air outlet 436 and is pretreated by the filter adsorption material 44 and the screening filter 45. The limit ring 434 can prevent the air volume control inner cylinder 435 from moving down excessively and detaching from the closed outer cylinder 433.

[0028] Please refer to Figure 5 , the stirring and catalytic tank 3 includes a catalytic reaction tank 33, the outer surface of the catalytic reaction tank 33 is fixedly connected inside the housing main body 21, the middle part of the inner side of the catalytic reaction tank 33 is rotatably connected with a central shaft 32, the top end of the central shaft 32 extends to the outside of the top end of the catalytic reaction tank 33 and is fixedly connected to the inside of the centrifugal condensation purifier 1, the bottom end of the central shaft 32 extends to the outside of the bottom end of the catalytic reaction tank 33 and is fixedly connected to the top end of the receiving and conveying cylinder 431 and is communicated with it, and a number of ventilation openings 34 are respectively arranged on the upper and lower sides of the outer surface of the central shaft 32, and the upper and lower ventilation openings 34 are only communicated through the inner cavity of the catalytic reaction tank 33. A planetary stirring assembly 31 is arranged at the top of the inner side of the catalytic reaction tank 33, and a catalyst external interface 35 is arranged at the bottom of the catalytic reaction tank 33.

[0029] The catalytic reaction tank 33 provides a closed space for the catalytic reaction. The central shaft 32 is a key component connecting different treatment modules, which not only plays a supporting role, but also provides a channel for the flow of exhaust gas. At the same time, the rotation of the central shaft 32 provides power for the planetary stirring assembly 31. The ventilation openings 34 are only communicated through the inner cavity of the catalytic reaction tank 33, and the function is to control the flow path of the exhaust gas in the catalytic reaction tank 33 to ensure that the exhaust gas undergoes a catalytic reaction. The planetary stirring assembly 31 makes the exhaust gas and the catalyst fully mixed through the stirring action, increases the gas-solid contact area, and strengthens the catalytic reaction effect. The catalyst external interface 35 is used to add the catalyst.

[0030] Please refer to Figure 5, the planetary stirring assembly 31 includes a sun gear 311. The inner side of the sun gear 311 is fixedly connected to the upper side of the outer surface of the central shaft 32. Three planetary gears 313 are meshed and connected to the outer side of the sun gear 311. A support guide post 312 is fixedly connected to the top of the planetary gear 313. A support guide groove 314 is formed in the inner top of the catalytic reaction tank 33. The three support guide posts 312 are jointly and slidably connected to the inner side of the support guide groove 314. A planetary gear ring 315 is meshed and connected to the outer surfaces of the three planetary gears 313. The outer surface of the planetary gear ring 315 is fixedly connected to the upper part inside the catalytic reaction tank 33. A stirring column 316 is fixedly connected to the bottom of the planetary gear 313. A stirring head 317 is fixedly connected to the bottom of the stirring column 316.

[0031] When the central shaft 32 rotates, it drives the sun gear 311 fixedly connected to the upper side of its outer surface to rotate synchronously. The sun gear 311 serves as a power source to provide initial power for the entire planetary stirring assembly 31. The rotation of the sun gear 311 causes the planetary gears 313 to revolve around the sun gear 311, and at the same time, the planetary gears 313 themselves will also rotate. The support guide groove 314 plays a role in supporting and guiding the support guide posts 312 to ensure the stability of the planetary gears 313 during the movement process. The stirring columns 316 and the stirring heads 317 perform complex spatial movements along with the revolution and rotation of the planetary gears 313. The stirring heads 317 continuously stir inside the catalytic reaction tank 33, enabling the waste gas and the catalyst to be fully mixed, increasing the contact area between the two, and strengthening the catalytic reaction effect.

[0032] Please refer to Figure 6 , the centrifugal condensation purifier 1 includes a condensation reaction tank 12. The middle part of the outer surface of the condensation reaction tank 12 is fixedly connected inside the housing main body 21. The top of the condensation reaction tank 12 is conical. An adsorption detector 11 is arranged at the top outlet of the condensation reaction tank 12. The top end of the central shaft 32 extends into the condensation reaction tank 12 and is rotatably connected to the bottom end of the condensation reaction tank 12. A centrifugal rotor 16 is fixedly connected to the top end of the central shaft 32. The centrifugal rotor 16 is provided with a number of shunt centrifugal holes 17 that are internally and externally connected. All the shunt centrifugal holes 17 are communicated with the inside of the central shaft 32. A number of condensation inner pipes 13 passing through the inner cavity are arranged inside the condensation reaction tank 12. One ends of the number of condensation inner pipes 13 for water inlet are jointly fixedly connected to a water inlet outer pipe 14. The water inlet outer pipe 14 is provided with a water inlet interface extending to be connected outside the housing main body 21. One ends of the number of condensation inner pipes 13 for water outlet are jointly fixedly connected to a water outlet outer pipe 15. The water outlet outer pipe 15 is provided with a water outlet interface extending to be connected outside the housing main body 21. A waste water accumulation plate 18 is arranged at the bottom of the condensation reaction tank 12.

[0033] The waste gas treated by the stirring catalytic tank 3 enters the centrifugal rotor 16 through the internal channel of the central shaft 32. The central shaft 32 drives the centrifugal rotor 16 to rotate at a high speed. The waste gas enters the shunt centrifugal holes 17 of the centrifugal rotor 16. Under the action of centrifugal force, some impurities such as liquid droplets and particulate matter in the waste gas are thrown towards the inner wall of the condensation reaction tank 12, achieving preliminary separation and initially purifying the waste gas. The condensation inner tube 13 is externally connected to a water source through the water inlet outer tube 14. Cold water enters the condensation inner tube 13 and takes away the heat of the waste gas outside the tube. Since the temperature of the waste gas after catalysis will increase due to chemical reactions, when the waste gas meets the cold, the water vapor and some harmful gases with higher boiling points in it condense into liquids and flow down along the inner wall of the condensation reaction tank 12, further removing the impurities in the waste gas and improving the purification effect. The gas after centrifugal separation and condensation treatment flows towards the top of the condensation reaction tank 12, and the adsorption detector 11 at the top outlet detects the pollutant content in the gas in real time to determine whether the waste gas meets the emission standards.

[0034] The waste water formed by condensation and the impurity liquid separated by centrifugation are collected at the bottom of the condensation reaction tank 12. The waste water water collecting plate 18 makes the inner bottom of the condensation reaction tank 12 a backward-inclined slope, which is convenient for the waste water to flow to a specific position for subsequent treatment. At the same time, it is necessary to pre-seal the gap with water to prevent the leakage of unpurified waste gas.

[0035] Please refer to Figure 7 , the waste water water collecting plate 18 includes an inclined guide groove 181, which is opened at the rear bottom end of the condensation reaction tank 12. The bottom side of the outer surface of the condensation reaction tank 12 is fixedly connected with a water collecting and sealing plate 182. The outer side of the top end of the water collecting and sealing plate 182 is fixedly connected with a water surface height limiting plate 185. A number of water absorption ports 186 are opened on the upper side of the front end of the water surface height limiting plate 185. The rear end of the water surface height limiting plate 185 is fixedly connected with a water suction pipe 187. A water discharge hole 184 is vertically penetrated through the front and rear of the water collecting and sealing plate 182, and a water discharge pipe 183 is arranged at the bottom of the water discharge hole 184. The water collecting and sealing plate 182 extends to the outside of the housing main body 21 through the waste water diversion inclined groove 22. The inclined guide groove 181 makes the inner bottom of the condensation reaction tank 12 a backward-inclined slope, and the water surface height limiting plate 185 is higher than the highest point of the inner bottom of the condensation reaction tank 12.

[0036] The inclined guide groove 181 guides the waste water in the condensation reaction tank 12 to flow in a specific direction, and uses gravity to make the waste water naturally converge to the water collecting and sealing plate 182. At the same time, the waste water is used to seal the gap of the inclined guide groove 181 to prevent the leakage of unpurified waste gas. The water collecting and sealing plate 182 mainly plays the role of sealing and collecting waste water. The water surface height limiting plate 185 can always keep the accumulated waste water sealed in the inclined guide groove 181, and the excess water will be discharged through the water absorption ports 186 and the water suction pipe 187 to keep the water level always at a certain horizontal plane. The water discharge hole 184 and the water discharge pipe 183 are the main channels for discharging the waste water in the water collecting and sealing plate 182, and can clean the internal accumulated water when the equipment stops.

[0037] Please refer to Figures 1-7 , during operation , first, water is injected into the water accumulation sealing plate 182 so that the water level can seal the inclined guide groove 181. Then, the exhaust fan 5 is started to extract the waste gas in the landfill into the adsorption and screening cylinder 4 sleeved outside it. The driving motor 41 drives the adsorption rotating cylinder 47 to rotate, and the internal filter adsorption material 44 and screening filter screen 45 preliminarily process the waste gas, removing impurities and some harmful gases. The processed waste gas enters the stirring and catalytic tank 3 through the air volume adaptation cylinder 43. In the stirring and catalytic tank 3, the central shaft 32 drives the planetary stirring assembly 31 to operate, enabling the waste gas to be fully mixed with the catalyst for catalytic reaction to convert harmful components. The reacted gas enters the centrifugal condensation purifier 1 through the central shaft 32 and is processed by the centrifugal rotor 16 and the condensation inner tube 13 to remove water vapor and other impurities. After the purified gas is detected and meets the standards by the adsorption detector 11 at the top of the centrifugal condensation purifier 1, it is discharged into the atmosphere. The wastewater generated during the purification process is discharged through the wastewater accumulation plate 18 for subsequent treatment.

[0038] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0039] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or further includes elements inherent to such process, method, article or device.

[0040] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A landfill waste gas treatment device, comprising a support base (6), characterized in that: A device housing (2) is arranged at the top of the support base (6), an exhaust fan (5) is arranged in the middle of the support base (6), an adsorption screening cylinder (4) is arranged inside the device housing (2), a stirring catalytic tank (3) is arranged above the adsorption screening cylinder (4), a centrifugal condensation purifier (1) is arranged above the stirring catalytic tank (3), the top of the centrifugal condensation purifier (1) extends to the outside of the top of the device housing (2), the adsorption screening cylinder (4) is sleeved on the outer surface of the exhaust fan (5), the device housing (2) comprises a housing body (21), the bottom end of the housing body (21) is fixedly connected to the top of the support base (6), and the rear end of the housing body (21) is provided with a wastewater diversion chute (22) at the horizontal plane of the bottom end of the centrifugal condensation purifier (1).

2. A landfill waste gas treatment device according to claim 1, characterized in that: The support base (6) comprises a support bottom plate (66), the top of the support bottom plate (66) is fixedly connected to two support plates (61), the tops of the two support plates (61) are fixedly connected to the bottom of the housing body (21), an electric lifting rod (63) is arranged in the middle of the top of the support bottom plate (66), the top of the electric lifting rod (63) is fixedly connected to a lifting plate (64), the left and right sides of the outer surface of the lifting plate (64) are fixedly connected, lifting guide columns (65) are fixedly connected, the opposite sides of the two support plates (61) are provided with lifting guide grooves (62), the two lifting guide columns (65) are respectively slidably connected to the inside of the lifting guide grooves (62) on the same side, and the top of the lifting plate (64) is fixedly connected to the bottom of the exhaust fan (5).

3. A landfill waste gas treatment device according to claim 1, characterized in that: The adsorption screening drum (4) comprises an adsorption drum (47), the adsorption drum (47) being rotatably connected to the inside of the shell body (21), the adsorption drum (47) being sleeved on the outer surface of the exhaust fan (5), a rotating impulse gear ring (46) being fixedly connected to the middle of the outer surface of the adsorption drum (47), a driving gear (42) being meshedly connected to the rear side of the rotating impulse gear ring (46), the bottom end of the driving gear (42) being rotatably connected to the inside of the shell body (21), the top end of the driving gear (42) being provided with a driving motor (41), the outer surface of the driving motor (41) being fixedly connected to the shell body ( 21), the top end of the inner side of the adsorption drum (47) is fixedly connected to an air volume adaptation drum (43), the middle part of the outer surface of the air volume adaptation drum (43) is fixedly connected to a plurality of filter adsorption materials (44), a screening filter (45) is arranged between each two adjacent filter adsorption materials (44), the middle part of the screening filter (45) is fixedly connected to the outer surface of the air volume adaptation drum (43), the bottom end of the air volume adaptation drum (43) is fixedly connected to the output of the middle part of the top end of the exhaust fan (5), and the outer surfaces of the filter adsorption materials (44) and the screening filter (45) are fixedly connected to the inner side of the adsorption drum (47).

4. A landfill waste gas treatment device according to claim 3, characterized in that: The air volume adaptation cylinder (43) comprises a closed outer cylinder (433), the outer surface of which is fixedly connected to a plurality of filtering adsorption materials (44) and the middle of a screening filter (45), the top end of which is fixedly connected to a receiving and conveying cylinder (431), the top end of which is fixedly connected to the bottom end of a stirring catalytic tank (3), the interior of which is in communication with the interior of the stirring catalytic tank (3), and the outer surface of which is fixedly connected to a receiving and conveying cylinder (431). The surface of the air volume control inner cylinder (435) is evenly provided with three receiving ports (432); an air volume control inner cylinder (435) is sleeved on the inner side of the closed outer cylinder (433); a limit ring (434) is fixedly connected to the top of the air volume control inner cylinder (435); a plurality of vertical strip-shaped air outlets (436) are provided on the outer surface of the air volume control inner cylinder (435); the closed outer cylinder (433) is not connected to the receiving and conveying cylinder (431); and the bottom end of the air volume control inner cylinder (435) is fixedly connected to the output of the middle part of the top end of the exhaust fan (5).

5. A landfill waste gas treatment device according to claim 4, characterized in that: The stirred catalytic tank (3) comprises a catalytic reaction tank (33), the outer surface of the catalytic reaction tank (33) is fixedly connected to the inside of the shell body (21), the middle part of the inner side of the catalytic reaction tank (33) is rotatably connected to a central shaft (32), the top end of the central shaft (32) extends to the outside of the top end of the catalytic reaction tank (33) and is fixedly connected to the inside of the centrifugal condensation purifier (1), the bottom end of the central shaft (32) extends to the outside of the bottom end of the catalytic reaction tank (33) and is fixedly connected to the top of a receiving and conveying cylinder (431) and communicates with it, a plurality of ventilation holes (34) are respectively provided on the upper and lower sides of the outer surface of the central shaft (32), and the ventilation holes (34) on the upper and lower sides are communicated only through the inner cavity of the catalytic reaction tank (33), a planetary stirring assembly (31) is provided on the top of the inner side of the catalytic reaction tank (33), and a catalyst external interface (35) is provided at the bottom of the catalytic reaction tank (33).

6. A landfill waste gas treatment device according to claim 5, characterized in that: The planetary stirring assembly (31) comprises a sun gear (311), the inner side of the sun gear (311) is fixedly connected to the upper side of the outer surface of the central shaft (32), the outer side of the sun gear (311) is meshedly connected to three planetary gears (313), the top of the planetary gear (313) is fixedly connected to a support guide column (312), the top of the inner side of the catalytic reaction tank (33) is provided with a support guide groove (314), the three support guide columns (312) are slidably connected to the inner side of the support guide groove (314), the outer surfaces of the three planetary gears (313) are meshedly connected to a planetary gear ring (315), the outer surface of the planetary gear ring (315) is fixedly connected to the upper side of the inner side of the catalytic reaction tank (33), the bottom end of the planetary gear (313) is fixedly connected to a stirring column (316), and the bottom end of the stirring column (316) is fixedly connected to a stirring head (317).

7. The landfill waste gas treatment device according to claim 5, characterized in that: The centrifugal condensation purifier (1) comprises a condensation reaction tank (12), the middle portion of the outer surface of the condensation reaction tank (12) is fixedly connected to the inside of the shell body (21), the top of the condensation reaction tank (12) is conical, an adsorption detector (11) is arranged at the top outlet of the condensation reaction tank (12), the top end of the central axis (32) extends into the inside of the condensation reaction tank (12) and is rotatably connected to the bottom end of the condensation reaction tank (12), the top end of the central axis (32) is fixedly connected to a centrifugal rotor (16), the centrifugal rotor (16) is provided with a plurality of shunt centrifugal holes (17) which are connected to the inside and outside, and the plurality of shunt centrifugal holes (17) are all in communication with the interior of the central axis (32), the interior of the condensation reaction tank (12) is provided with a plurality of condensation inner tubes (13) passing through the inner cavity, the water inlet ends of the plurality of condensation inner tubes (13) are commonly fixedly connected to a water inlet outer tube (14), the water inlet outer tube (14) is provided with a water inlet interface extending to the outside of the outer shell body (21), the water outlet ends of the plurality of condensation inner tubes (13) are commonly fixedly connected to a water outlet outer tube (15), the water outlet outer tube (15) is provided with a water outlet interface extending to the outside of the outer shell body (21), and a wastewater accumulation plate (18) is provided at the bottom of the condensation reaction tank (12).

8. The landfill waste gas treatment device according to claim 7, characterized in that: The wastewater accumulation plate (18) comprises an inclined guide groove (181), the inclined guide groove (181) being opened at the bottom end of the rear side of the condensation reaction tank (12), a water accumulation sealing plate (182) being fixedly connected to the bottom side of the outer surface of the condensation reaction tank (12), a water surface height limiting plate (185) being fixedly connected to the outer side of the top end of the water accumulation sealing plate (182), a plurality of water suction ports (186) being opened on the upper side of the front end of the water surface height limiting plate (185), and a water surface height limiting plate (185) being fixedly connected to the rear end of the water surface height limiting plate (185). A water suction pipe (187), a water drain hole (184) is provided through the upper and lower sides of the rear side of the water accumulation sealing plate (182), a water drain pipe (183) is provided at the bottom of the water drain hole (184), the water accumulation sealing plate (182) extends to the outside of the shell body (21) through the wastewater diversion inclined groove (22), the inclined guide groove (181) makes the inner bottom of the condensation reaction tank (12) an inclined surface inclined backward, and the water surface limit plate (185) is higher than the highest point of the inner bottom of the condensation reaction tank (12).

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