Solid waste landfill disposal apparatus

Abstract

This invention discloses a solid waste landfill treatment device, relating to the field of solid waste landfill. The device includes a mounting base, a magnetic cylinder, a drive assembly, a mounting frame, a filling assembly, and a grouting nozzle. The top of the mounting base is equipped with a first crusher, a second crusher, a vibrating screen, and a stirring mechanism. The filling assembly is used to transport the material crushed by the first crusher into the landfill. A grouting nozzle is provided on one side of the mounting frame. This invention can realize the fully automated continuous adsorption-scraping-collection process of ferromagnetic metals. At the same time, through the multi-degree-of-freedom design of the filling assembly, it can achieve 360° uniform material feeding throughout the landfill, avoiding local accumulation of materials and solving the problems of high porosity and uneven settling in traditional landfill processes.

Description

Technical Field

[0001] This invention relates to the field of solid waste landfill, specifically to a solid waste landfill treatment device. Background Technology

[0002] With the rapid development of my country's construction industry and the large-scale advancement of urban renewal and infrastructure renovation and expansion projects, a massive amount of solid waste is generated during construction and demolition operations. This waste mainly consists of inorganic non-metallic materials such as broken concrete blocks, waste cement boards, and brick and stone slag, while also commonly mixed with ferrous metal materials such as reinforcing bars, embedded iron parts, and iron wire. Currently, for the on-site disposal of small-to-medium-sized construction solid waste, landfill treatment remains the most widely used end-of-life disposal method in China due to its simple process, low disposal cost, and flexible processing scale.

[0003] In the practical application of existing construction solid waste landfill disposal, there are many intractable technical defects. First, recyclable ferrous metal resources such as steel bars and iron parts mixed in construction solid waste cannot be efficiently and continuously separated and recycled before landfilling. Most of them are directly landfilled with the waste, which not only causes a serious waste of a large amount of renewable metal resources, but also causes long-term oxidation and corrosion of metal materials in the anaerobic and humid environment of the landfill site, which easily leads to the leakage of heavy metal ions. This poses a long-term potential pollution risk to the soil and groundwater environment around the landfill, which does not meet the requirements of resource utilization and environmental protection in solid waste disposal.

[0004] Secondly, the construction solid waste to be landfilled is uneven in size, and large pieces of concrete, cement slabs, and other materials easily form numerous through-voids. Even conventional site compaction processes are insufficient to effectively eliminate these internal voids. After landfilling, the landfill is highly susceptible to uneven settlement and localized collapse due to the long-term effects of the overburden load, rainwater infiltration and erosion, and the weathering and decomposition of the materials themselves. This not only severely limits the subsequent reuse of the landfill site but can also damage the impermeable layer at the bottom of the landfill, potentially leading to major environmental incidents such as leachate leakage. Consequently, the long-term safety of the landfill disposal cannot be effectively guaranteed.

[0005] Therefore, it is necessary to provide a new solid waste landfill treatment device to solve the above-mentioned technical problems. Summary of the Invention

[0006] This invention overcomes the shortcomings of the prior art and proposes a solid waste landfill treatment device.

[0007] This invention is achieved through the following technical solution: A solid waste landfill treatment device includes a mounting base, a magnetic cylinder, a drive assembly, a mounting frame, a filler assembly, and a grouting nozzle. A first crusher, a second crusher, a vibrating screen, and a stirring mechanism are mounted on the top of the mounting base. A magnetic cylinder is mounted on the top of the vibrating screen. A drive ring is mounted on the outer wall of the magnetic cylinder. A drive assembly is installed between the magnetic cylinder and the drive ring. The drive assembly drives the drive ring to move axially along the magnetic cylinder to collect the ferrous metal adsorbed by the magnetic cylinder. A mounting frame is located at one end of the mounting base. A filler assembly is installed inside the mounting frame. The filler assembly is used to transport the material crushed by the first crusher to the landfill. A grouting nozzle is located on one side of the mounting frame.

[0008] Furthermore, the drive assembly includes a motor, a transmission rod, and a reciprocating lead screw. A support frame is fixedly connected to the top of the mounting base. The interior of the support frame is located above the vibrating screen. The transmission rod and the reciprocating lead screw are rotatably connected to the support frame. The magnetic cylinder is fixedly sleeved on the outer wall of the transmission rod, and plastic parts are fixedly sleeved on the outer walls of the transmission rod near both ends of the magnetic cylinder. The motor is fixedly connected to the side wall of the support frame, and its output end is fixedly connected to the end of the transmission rod. The transmission rod and the reciprocating lead screw are connected by a belt drive mechanism. A mating block is fitted on the outer wall of the reciprocating lead screw, and the outer wall of the mating block is fixedly connected to the top side wall of the drive ring.

[0009] Furthermore, the belt drive mechanism includes a driving pulley and a driven pulley; the driving pulley is fixedly connected to one end of the transmission rod near the first motor, and the driven pulley is fixedly connected to one end of the reciprocating screw near the first motor, and the driving pulley and the driven pulley are connected by belt drive; a guide plate is fixedly connected inside the support frame, and the top of the guide plate is located below the two plastic parts, and a collection box is placed below the guide plate.

[0010] Furthermore, the first crusher, the second crusher, and the vibrating screen are all fixedly installed inside the support frame. The discharge port of the first crusher is located above the feeding end of the vibrating screen, the second crusher is located at the bottom of the vibrating screen, and the discharge end of the second crusher is connected to the mixing mechanism. A pump body is fixedly connected to the top of the mounting base. The input end of the pump body is connected to the bottom side of the mixing mechanism, and the output end of the pump body is connected to a slurry conveying pipe, which is connected to a grouting spray pipe. An inclined conveyor belt is fixedly connected inside the support frame. The discharge end of the top of the conveyor belt is fixedly connected to the top of the mounting frame, and the discharge end of the vibrating screen is located above the feeding end of the conveyor belt.

[0011] Furthermore, the packing assembly includes a feed hood, a discharge pipe, a toothed ring, a gear, and a second motor. The feed hood is fixedly connected to the inside of the top of the mounting frame. The discharge end of the conveyor belt is located above the feed end of the feed hood. The discharge end of the feed hood is rotatably connected to the discharge pipe. A toothed ring is fixedly fitted on the outer wall of the discharge pipe near the top. The second motor is fixedly connected to the inside of the top of the mounting frame. A gear is fixedly connected to its output end, and the gear and the toothed ring mesh with each other.

[0012] Furthermore, the outer wall of the feeding pipe is symmetrically and fixedly connected with limiting bars, the outer wall of the feeding pipe is slidably fitted with a guide pipe, and the bottom end of the guide pipe is designed to be inclined. The inner wall of the guide pipe is symmetrically opened with limiting grooves, and the limiting bars are placed inside the corresponding limiting grooves.

[0013] Furthermore, a drive frame is rotatably connected to the outer wall of the bottom end of the feed tube via a bearing. A motor is symmetrically fixedly connected to the top of the mounting frame, and its output end is fixedly connected to a threaded rod through the inside of the mounting frame. Both ends of the drive frame are threadedly connected to the corresponding threaded rod.

[0014] Furthermore, a discharge pipe is slidably connected to the outer wall of the bottom inclined section of the guide pipe, and the bottom end of the discharge pipe is vertically downward. An electric push rod is fixedly connected to the outer wall of the discharge pipe, and a push frame is fixedly connected to its output end. Both ends of the push frame are fixedly connected to the outer wall of the guide pipe. A guide rod is fixedly connected to the outer wall of the bottom inclined section of the guide pipe, and a guide sleeve is fixedly connected to the outer wall of the discharge pipe. The guide rod is slidably embedded inside the guide sleeve.

[0015] Furthermore, a support plate is fixedly connected to the bottom outer wall of the discharge pipe, and several electric push rods are fixedly connected to the top of the support plate. The output ends of the push rods are all fixedly connected to vertical rods through the support plate. The bottom ends of the vertical rods are all fixedly connected to pressure plates. Connecting rods are symmetrically fixedly connected to the bottom of the support plate, and the length of the connecting rods is greater than the length of the vertical rods. The bottom ends of the connecting rods are fixedly connected to scrapers.

[0016] Furthermore, the bottom of the drive frame is fixedly connected to an upper housing, which is circular and fits over the outside of the guide tube. The bottom of the upper housing is rotatably connected to a lower housing, and the upper and lower housings are connected. The side wall of the lower housing is fixedly connected to the outer wall of the guide tube via a fixing rod. The outer wall of the lower housing is fixedly connected to branch pipes at equal intervals, and the bottom of each branch pipe is connected to an atomizing nozzle at equal intervals. The top of the upper housing is connected to a water supply pipe. A water tank is placed on one side of the mounting frame, and a water pump is installed on the top of the water tank. The other end of the water supply pipe is connected to the output end of the water pump. A sealing gasket is installed at the rotatable connection between the upper and lower housings.

[0017] The beneficial effects of this invention compared to the prior art are as follows: 1. This invention achieves full automation of the continuous adsorption-scraping-collection process of ferromagnetic metals through the coordinated design of the drive component and the magnetic cylinder. The rotating magnetic cylinder adsorbs metals such as steel bars and iron parts from the material on the vibrating screen, and the drive ring is driven by the reciprocating screw to achieve reciprocating scraping, which concentrates the metal to the guide plate and slides it into the collection box. This greatly improves the metal separation efficiency, avoids the direct landfill waste of renewable resources, and at the same time, eliminates the problem of heavy metal ion leakage caused by long-term oxidation and corrosion of ferrous metals in the anaerobic and humid underground environment after entering the landfill with waste.

[0018] 2. This invention uses a first crusher to coarsely crush solid waste, breaking large pieces of material down to a size suitable for screening. Simultaneously, the crushing impact force removes reinforcing bars and embedded iron parts encased in concrete, creating conditions for subsequent magnetic separation and recycling. A vibrating screen then precisely separates the coarse aggregate from the fine powder. The coarse aggregate serves as the skeleton structure of the landfill, while the fine powder is fed into a second crusher for ultrafine grinding. This powder is then directly fed into a mixing mechanism to mix with a solidifying agent and water to prepare a solidified filling slurry. This achieves complete utilization of solid waste resources and significantly reduces the overall cost of landfill disposal.

[0019] 3. This invention solves the problems of high porosity and uneven settlement in traditional landfill processes by using a multi-degree-of-freedom design of the filler assembly and a layered treatment process of pre-compaction and grouting curing. The three-motor drive frame and guide pipe move axially along the discharge pipe to adapt to the layered operation requirements of landfills at different depths. The synchronous rotation of the discharge pipe, guide pipe, and outlet pipe by the second motor ensures uniform 360° material discharge throughout the landfill, avoiding localized material accumulation. The electric push rod drives the outlet pipe to smoothly extend and retract along the inclined section of the guide pipe, flexibly adjusting the discharge radius and achieving full coverage paving from the center of the landfill to the inner edge of the wall, in conjunction with the rotational action. Simultaneously, the rotation of the scraper flattens the falling material, ensuring a smooth and uniform surface and thickness of the paved layer.

[0020] 4. This invention uses an electric push rod to drive the pressure plate downwards, which, in conjunction with the rotation of the discharge pipe, performs full-range cyclic pressure compaction on the paved material layer, significantly improving the initial density of the material layer. After pre-compacting, the material layer is injected with self-made curing slurry under high pressure through a grouting nozzle. The slurry can fully penetrate into the micro-voids and gaps between the coarse aggregates, eliminating void defects inside the material layer, greatly improving the structural strength of the landfill, and avoiding uneven settlement and local collapse problems that occur in the landfill under long-term upper loads and rainwater erosion.

[0021] 5. This invention achieves dynamic and static separation water supply by using a lower shell, branch pipe and atomizing nozzle that rotate synchronously with the material guide pipe, in conjunction with a fixed upper shell. During the entire process of material feeding and paving, atomized water mist is sprayed 360° without dead angles, which effectively suppresses the dust generated during material feeding and paving, and avoids the pollution of the surrounding atmospheric environment by dust generated during operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the solid waste landfill treatment device provided by the present invention; Figure 2 for Figure 1 The diagram shows the structural features of the side of the mounting base. Figure 3 for Figure 2 The diagram shown is a structural schematic of the vibrating screen. Figure 4 for Figure 3 The diagram shows the structure at point A. Figure 5 for Figure 3 The diagram shows the structure of the mounting bracket. Figure 6 for Figure 5 The diagram shows the structure at point B. Figure 7 for Figure 5 The diagram shows the structure at point C. Figure 8 for Figure 5 The diagram shows the structure of the feed tube. Figure 9 for Figure 8 The diagram shows the structure at point D.

[0023] Labels in the diagram: 1. Mounting base; 2. First crusher; 3. Second crusher; 4. Vibrating screen; 5. Mixing mechanism; 6. Magnetic cylinder; 7. Drive ring; 8. Mounting frame; 9. Grouting nozzle; 10. Motor 1; 11. Drive pulley; 12. Driven pulley; 13. Reciprocating screw; 14. Transmission rod; 15. Mating block; 16. Guide plate; 17. Collection box; 18. Conveyor belt; 19. Feed hood; 20. Discharge pipe; 21. Gear ring; 22. 23. Gear; 24. Motor II; 25. Limiting bar; 26. Guide pipe; 27. Drive frame; 28. Motor III; 29. ​​Threaded rod; 30. Discharge pipe; 31. Electric push rod I; 32. Push frame; 33. Guide rod; 34. Guide sleeve; 35. Support plate; 36. Electric push rod II; 37. Pressure plate; 38. Scraper; 39. Upper housing; 40. Lower housing; 41. Branch pipe; 42. Water tank; 43. Water pump; 44. Pump body; 45. Slurry conveying pipe. Detailed Implementation

[0024] To make the technical problems to be solved, the technical solutions, and the beneficial effects of this invention clearer, the invention will be further described in detail with reference to the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. The technical solutions of this invention are described in detail below with reference to the embodiments and accompanying drawings, but the scope of protection is not limited thereto.

[0025] Please see Figures 1 to 9This embodiment proposes a solid waste landfill treatment device, which includes a mounting base 1, a magnetic cylinder 6, a drive assembly, a mounting frame 8, a filler assembly, and a grouting nozzle 9. The top of the mounting base 1 is equipped with a first crusher 2, a second crusher 3, a vibrating screen 4, and a stirring mechanism 5. The top of the vibrating screen 4 is equipped with a magnetic cylinder 6, and a drive ring 7 is installed on the outer wall of the magnetic cylinder 6. A drive assembly is installed between the magnetic cylinder 6 and the drive ring 7. The drive assembly drives the drive ring 7 to move, which is used to collect the ferrous metal adsorbed by the magnetic cylinder 6. One end of the mounting base 1 is equipped with a mounting frame 8, and the inside of the mounting frame 8 is equipped with a filler assembly. The filler assembly is used to transport the material crushed by the first crusher 2 to the landfill. A grouting nozzle 9 is provided on one side of the mounting frame 8.

[0026] The first crusher 2 is for coarse crushing, and the coarsely crushed material is sent into the landfill. The second crusher 3 is for fine crushing, and the finely crushed material is used to stir into a slurry and seep into the gaps inside the landfill.

[0027] The drive assembly includes a motor 10, a transmission rod 14, and a reciprocating lead screw 13. A support frame is fixedly connected to the top of the mounting base 1. Inside the support frame, above the vibrating screen 4, the transmission rod 14 and the reciprocating lead screw 13 are rotatably connected. The magnetic cylinder 6 is fixedly sleeved on the outer wall of the transmission rod 14, and plastic parts are fixedly sleeved on the outer walls of the transmission rod 14 near both ends of the magnetic cylinder 6. The side wall of the support frame is fixedly connected to the motor 10, and its output end is fixedly connected to the end of the transmission rod 14. The reciprocating screw 13 is connected to the drive screw 14 via a belt drive mechanism. The belt drive mechanism includes a drive pulley 11 and a driven pulley 12. Specifically, the drive pulley 11 is fixedly connected to the end of the transmission rod 14 near the motor 10, and the driven pulley 12 is fixedly connected to the end of the reciprocating screw 13 near the motor 10. The drive pulley 11 and the driven pulley 12 are connected by a belt drive. A mating block 15 is fitted on the outer wall of the reciprocating screw 13, and the outer wall of the mating block 15 is fixedly connected to the top side wall of the drive ring 7.

[0028] A guide plate 16 is fixedly connected inside the support frame, and the top of the guide plate 16 is located below the two plastic parts. A collection box 17 is placed below the guide plate 16.

[0029] The first crusher 2, the second crusher 3, and the vibrating screen 4 are all fixedly installed inside the support frame. The discharge port of the first crusher 2 is located above the feeding end of the vibrating screen 4. The second crusher 3 is located at the bottom of the vibrating screen 4, and the discharge end of the second crusher 3 is connected to the mixing mechanism 5. The top of the mounting base 1 is fixedly connected to the pump body 43, the input end of which is connected to the bottom side of the mixing mechanism 5, and the output end of which is connected to the slurry conveying pipe 44. The other end of the slurry conveying pipe 44 is connected to the grouting spray pipe 9. An inclined conveyor belt 18 is fixedly connected inside the support frame. The discharge end of the top of the conveyor belt 18 is fixedly connected to the top of the mounting frame 8. The discharge end of the vibrating screen 4 is located above the feeding end of the conveyor belt 18.

[0030] Please see Figures 5 to 9 The packing assembly includes a feed hood 19, a discharge pipe 20, a toothed ring 21, a gear 22, and a motor 23. The feed hood 19 is fixedly connected to the top of the mounting frame 8. The discharge end of the conveyor belt 18 is located above the feed end of the feed hood 19. The discharge end of the feed hood 19 is rotatably connected to the discharge pipe 20. The toothed ring 21 is fixedly sleeved near the outer wall of the top of the discharge pipe 20. The motor 23 is fixedly connected to the top of the mounting frame 8. The output end of the motor 23 is fixedly connected to the gear 22, and the gear 22 and the toothed ring 21 mesh with each other.

[0031] The outer wall of the feeding pipe 20 is symmetrically and fixedly connected with limiting bars 24. The outer wall of the feeding pipe 20 is slidably sleeved with a guide pipe 25, and the bottom end of the guide pipe 25 is inclined. The inner wall of the guide pipe 25 is symmetrically opened with limiting grooves, and the limiting bars 24 are placed inside the corresponding limiting grooves.

[0032] When motor 23 starts, it drives the feed pipe 20 to rotate through gear 22 and gear ring 21, which in turn drives the guide pipe 25 and the discharge pipe 29 to rotate, so that the discharge pipe 29 can evenly spread the material.

[0033] The guide tube 25 is rotatably connected to the drive frame 26 near the bottom outer wall via a bearing. The top of the mounting frame 8 is symmetrically fixedly connected to the motor 27, and the output ends of the motor 27 are fixedly connected to the threaded rod 28 through the inside of the mounting frame 8. Both ends of the drive frame 26 are threadedly connected to the corresponding threaded rod 28.

[0034] The motor 27 starts and drives the drive frame 26 to move, which in turn drives the guide pipe 25 to rise and fall to adapt to the depth of the landfill.

[0035] A discharge pipe 29 is slidably connected to the outer wall of the bottom inclined section of the guide pipe 25, and the bottom end of the discharge pipe 29 is vertically downward. An electric push rod 30 is fixedly connected to the outer wall of the discharge pipe 29, and a push frame 31 is fixedly connected to its output end. Both ends of the push frame 31 are fixedly connected to the outer wall of the guide pipe 25. A guide rod 32 is fixedly connected to the outer wall of the bottom inclined section of the guide pipe 25, and a guide sleeve 33 is fixedly connected to the outer wall of the discharge pipe 29. The guide rod 32 is slidably embedded inside the guide sleeve 33.

[0036] When the electric push rod 30 is started, it drives the discharge pipe 29 to move, which is used to adapt to different radial dimensions of the landfill, so that the material is discharged evenly.

[0037] A support plate 34 is fixedly connected to the bottom outer wall of the discharge pipe 29. Several electric push rods 35 are fixedly connected to the top of the support plate 34. The output ends of the push rods are all fixedly connected to the vertical rods through the support plate 34. A pressure plate 36 is fixedly connected to the bottom of the vertical rods. Connecting rods are symmetrically fixedly connected to the bottom of the support plate 34. The length of the connecting rods is greater than the length of the vertical rods. A scraper 37 is fixedly connected to the bottom of the connecting rods.

[0038] The scraper 37 rotates synchronously with the discharge pipe 29 to level the material in the landfill; the electric push rod 35 is activated and drives the pressure plate 36 to press down through the vertical rod to compact the material in the landfill.

[0039] The bottom of the drive frame 26 is fixedly connected to the upper housing 38, which is circular and is fitted over the outside of the guide tube 25. The bottom of the upper housing 38 is rotatably connected to the lower housing 39, and the upper housing 38 and the lower housing 39 are connected. The side wall of the lower housing 39 is fixedly connected to the outer wall of the guide tube 25 by a fixing rod. The outer wall of the lower housing 39 is fixedly connected to the branch pipes 40 at equal intervals. The bottom of the branch pipes 40 is connected to the atomizing nozzles at equal intervals. The top of the upper housing 38 is connected to the water supply pipe. A water tank 41 is placed on one side of the mounting frame 8. A water pump 42 is installed on the top of the water tank 41. The other end of the water supply pipe is connected to the output end of the water pump 42.

[0040] A sealing gasket is installed at the rotatable connection between the upper housing 38 and the lower housing 39; the lower housing 39 and the branch pipe 40 rotate with the discharge pipe 29, causing the atomizing nozzle to rotate accordingly, and the sprayed water mist is used to reduce dust generated during landfilling and reduce pollution to the surrounding environment.

[0041] The working principle of the solid waste landfill treatment device provided by this invention is as follows: Securely fix the mounting base 1 to the preset working position of the landfill, so that the mounting frame 8 is facing the working area of ​​the landfill, and complete the matching placement of the grouting nozzle 9, water tank 41, and collection box 17. Thoroughly check the reliability and sealing of each electrical component, transmission mechanism, and pipeline connection.

[0042] Next, motor 27 is started, and its output end drives two symmetrically arranged threaded rods 28 to rotate synchronously. The threaded rods 28 convert the rotational motion into vertical linear lifting motion through the threaded transmission with the drive frame 26, driving the drive frame 26 to move smoothly downward. The drive frame 26 synchronously drives the guide pipe 25 fixed to it. Through the sliding guide cooperation between the limiting bar 24 and the limiting groove, the guide pipe 25 moves vertically downward along the axis of the discharge pipe 20, and finally drives the discharge pipe 29 down to the preset depth of the first layer of landfill in the landfill, completing the initial positioning of the discharge point and preparing for the layered paving operation.

[0043] Subsequently, the solid waste to be landfilled is continuously fed into the first crusher 2, and the first crusher 2 is started simultaneously. The first crusher 2 performs impact coarse crushing on large pieces of material, crushing the material into small pieces that meet the screening requirements. At the same time, the crushing impact force completely separates the ferrous metals such as steel bars, embedded iron parts, and iron wires wrapped in concrete from the inorganic non-metallic materials, creating conditions for subsequent magnetic separation and recycling.

[0044] The material crushed by the first crusher 2 falls naturally through the discharge port to the feeding end of the lower vibrating screen 4, and the vibrating screen 4 is started simultaneously. The vibrating screen 4 performs precise particle size classification of the material through high-frequency vibration: coarse aggregate with a particle size larger than the screen hole size moves along the screen surface to the discharge end under the action of vibration, and finally falls to the feeding end of the lower conveyor belt 18, and is continuously transported to the landfill operation end by the conveyor belt 18; fine powder with a particle size smaller than the screen hole size falls through the screen hole into the lower second crusher 3, and enters the fine material pulping process.

[0045] While the vibrating screen 4 is performing its screening operation, the motor 10 is started to achieve continuous adsorption, scraping, and centralized collection of ferrous metals. The specific process is as follows: the output end of the motor 10 drives the transmission rod 14 to rotate synchronously, and the magnetic cylinder 6, which is fixedly sleeved on the outer wall of the transmission rod 14, rotates synchronously with the transmission rod 14; the rotating magnetic cylinder 6 uses magnetic force to continuously adsorb the ferrous metals stripped from the material on the vibrating screen 4 onto the outer wall of the cylinder, thereby achieving the separation of non-metallic materials from ferrous metals.

[0046] As the transmission rod 14 rotates, it drives the driving pulley 11 at its end to rotate synchronously. The driving pulley 11 drives the driven pulley 12 to rotate synchronously via a belt, which in turn drives the reciprocating screw 13 fixed to the driven pulley 12 to rotate. The reciprocating screw 13 drives the mating block 15 to move back and forth linearly along the axial direction of the reciprocating screw 13 through the screw drive with the mating block 15. This drives the drive ring 7 fixed to the mating block 15 to perform a synchronous reciprocating scraping action along the outer wall of the magnetic cylinder 6.

[0047] The drive ring 7 continuously scrapes the iron metal adsorbed on the outer wall of the magnetic cylinder 6 towards both ends of the cylinder. When the iron metal is scraped to the plastic parts area at both ends of the magnetic cylinder 6, since the plastic parts have no magnetic adsorption effect, the iron metal loses the adsorption force and falls naturally onto the guide plate 16 below under the action of gravity. It then slides down the inclined surface of the guide plate 16 into the collection box 17 at the bottom, realizing the centralized recycling of iron metal.

[0048] Fine powder passing through the screen holes of vibrating screen 4 falls into the second crusher 3. The second crusher 3 is started to perform ultra-fine crushing of the fine powder, crushing the material to the fineness required for pulping, ensuring the fluidity, permeability and solidification effect of the subsequent slurry.

[0049] The fine powder pulverized by the second crusher 3 is conveyed to the mixing mechanism 5 through the discharge end; the curing agent, water and other auxiliary materials are added to the mixing mechanism 5 according to the design ratio, and the mixing mechanism 5 is started to mix evenly to prepare a curing filling slurry with good fluidity. The prepared slurry is stored in the mixing mechanism 5 for heat preservation and is ready for subsequent grouting and filling processes.

[0050] After being screened by the vibrating screen 4, the coarse aggregate is continuously conveyed by the conveyor belt 18 to the feed hood 19 at the top of the mounting frame 8. The material falls through the discharge port of the feed hood 19 into the rotatingly connected discharge pipe 20 and enters the paving process.

[0051] Simultaneously with the material feeding operation, motor 23 and water pump 42 are started. The output end of motor 23 drives gear 22 to rotate. Gear 22 drives the gear ring 21 fixed on the outer wall of feeding pipe 20 to rotate synchronously through meshing transmission, thereby driving feeding pipe 20 to rotate at a constant speed around its own axis. Feeding pipe 20 engages with limiting bar 24 on the outer wall and limiting groove on the inner wall of guide pipe 25 through locking, driving guide pipe 25 and discharge pipe 29 to rotate at a constant speed synchronously, realizing 360° uniform material feeding throughout the landfill.

[0052] After the water pump 42 starts, it pressurizes the water in the water tank 41 and delivers it through the water pipe to the sealed cavity formed by the upper shell 38 and the lower shell 39. Since the upper shell 38 is fixed and stationary with the drive frame 26, the lower shell 39 is fixed to the guide pipe 25 by the fixing rod and rotates synchronously with the guide pipe 25. After the water enters the cavity, it is continuously distributed to each branch pipe 40 on the outer wall of the lower shell 39. Finally, the water mist is evenly sprayed out in all directions through the atomizing nozzle at the bottom of the branch pipe 40 to suppress the dust generated during the feeding process, avoid dust pollution during operation, and ensure that the on-site working environment is compliant.

[0053] Coarse aggregate entering the feed pipe 20 falls vertically into the guide pipe 25 under the action of gravity. After being redirected by the inclined section at the bottom of the guide pipe 25, it enters the discharge pipe 29 and finally falls evenly to the bottom of the landfill through the vertical discharge port at the bottom of the discharge pipe 29. While the discharge pipe 29 rotates to discharge the material, the scraper 37 fixed by the support plate 34 at the bottom of the discharge pipe 29 rotates synchronously with the discharge pipe 29, continuously scraping the falling and accumulating material to form a uniform thickness layer in the landfill, avoiding uneven thickness and density differences caused by local accumulation.

[0054] After the material in the central area of ​​the landfill reaches the preset thickness, the motor 27 is started to reverse, driving the drive frame 26 and the guide pipe 25 to move upward a certain distance, so that the discharge pipe 29 and the scraper 37 move upward synchronously, making room for the subsequent discharge pipe 20 to move towards the edge of the landfill. Then, the electric push rod 30 is started. The output end of the electric push rod 30 drives the discharge pipe 29 through the push frame 31 to extend outward along the axis of the inclined section at the bottom of the guide pipe 25. Through the sliding guide cooperation of the guide rod 32 and the guide sleeve 33, the smoothness of the extension and retraction of the discharge pipe 29 is ensured, so that the discharge port of the discharge pipe 29 gradually moves towards the inner wall edge of the landfill. With the rotation and leveling action of the scraper 37, the uniform spreading of the material is completed throughout the entire landfill until a layer of coarse aggregate with uniform thickness and a flat surface is formed inside the entire landfill. Then, the feeding into the first crusher 2 is stopped, and the feeding operation is stopped.

[0055] After paving is completed, the electric push rod 35 is activated. The output end of the electric push rod 35 extends downward, driving the vertical rod and the pressure plate 36 at the bottom to press down synchronously, applying stable pressure to the paved coarse aggregate layer and achieving initial compaction of the layer. At the same time, in conjunction with the rotation driven by the motor 23, the pressure plate 36 rotates synchronously with the discharge pipe 29, performing full-range cyclic compaction of the layer in the entire landfill, eliminating large-volume through-holes between coarse aggregates, improving the initial density of the layer, and preparing the foundation for the subsequent grouting and filling process.

[0056] After the pre-compaction is completed, the motor 27 is started in reverse. Through the threaded transmission between the threaded rod 28 and the drive frame 26, the guide pipe 25 and the discharge pipe 29 are lifted upwards by a safe distance to prevent material from splashing and blocking the discharge port during the grouting operation. Then, the pump body 43 is started. The pump body 43 pressurizes and extracts the solidified slurry prepared in the mixing mechanism 5 and delivers it to the grouting nozzle 9 through the slurry delivery pipe 44. The operator holds the grouting nozzle 9 and performs a uniform and full-coverage high-pressure grouting operation into the pre-compacted coarse aggregate layer.

[0057] After grouting is completed, the material is allowed to stand for a preset curing time to allow the injected curing grout to fully penetrate into the micro-voids and gaps inside the coarse aggregate layer. After the grout has completely cured, the discrete coarse aggregate is bonded into a whole dense structure, eliminating void defects inside the material layer from the root, significantly improving the structural strength, impermeability and long-term stability of the landfill, and avoiding major environmental risks such as uneven settlement, local collapse and damage to the impermeable layer during subsequent use.

[0058] After the first layer of material is grouted and solidified, the construction solid waste to be landfilled is put into the first crusher 2 again. The above steps are repeated to carry out the crushing, screening, magnetic separation and recycling, spreading and compaction and grouting of the next layer of material. After each layer of landfilling is completed, the lifting height of the discharge pipe 29 is adjusted by the motor 3 27 to accurately match the spreading depth of the next layer. This cycle is repeated until the landfill is filled to the preset design elevation, and finally the safe, environmentally friendly and resource-based landfill disposal of the entire construction solid waste is completed.

[0059] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0060] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A solid waste landfill treatment device, characterized in that, The assembly includes a mounting base (1), a magnetic cylinder (6), a drive assembly, a mounting frame (8), a filler assembly, and a grouting nozzle (9). The top of the mounting base (1) is equipped with a first crusher (2), a second crusher (3), a vibrating screen (4), and a stirring mechanism (5). The top of the vibrating screen (4) is equipped with a magnetic cylinder (6). A drive ring (7) is installed on the outer wall of the magnetic cylinder (6). A drive assembly is installed between the magnetic cylinder (6) and the drive ring (7). The drive assembly drives the drive ring (7) to move axially along the magnetic cylinder (6) to collect the ferrous metal adsorbed by the magnetic cylinder (6). One end of the mounting base (1) is equipped with a mounting frame (8). The inside of the mounting frame (8) is equipped with a filler assembly. The filler assembly is used to transport the material crushed by the first crusher (2) to the landfill. A grouting nozzle (9) is provided on one side of the mounting frame (8).

2. The solid waste landfill treatment device according to claim 1, characterized in that, The drive assembly includes a motor (10), a transmission rod (14), and a reciprocating screw (13). A support frame is fixedly connected to the top of the mounting base (1). The inside of the support frame is located above the vibrating screen (4). The transmission rod (14) and the reciprocating screw (13) are rotatably connected to the support frame. The magnetic cylinder (6) is fixedly sleeved on the outer wall of the transmission rod (14). Plastic parts are fixedly sleeved on the outer walls of the transmission rod (14) near both ends of the magnetic cylinder (6). The side wall of the support frame is fixedly connected to the motor (10). Its output end is fixedly connected to the end of the transmission rod (14). The transmission rod (14) and the reciprocating screw (13) are connected by a belt drive mechanism. A mating block (15) is installed on the outer wall of the reciprocating screw (13). The outer wall of the mating block (15) is fixedly connected to the top side wall of the drive ring (7).

3. A solid waste landfill treatment device according to claim 2, characterized in that, The belt drive mechanism includes a driving pulley (11) and a driven pulley (12); the driving pulley (11) is fixedly connected to one end of the transmission rod (14) near the motor (10), and the driven pulley (12) is fixedly connected to one end of the reciprocating screw (13) near the motor (10), and the driving pulley (11) and the driven pulley (12) are connected by belt drive; a guide plate (16) is fixedly connected inside the support frame, and the top of the guide plate (16) is located below the two plastic parts, and a collection box (17) is placed below the guide plate (16).

4. A solid waste landfill treatment device according to claim 2, characterized in that, The first crusher (2), the second crusher (3) and the vibrating screen (4) are all fixedly installed inside the support frame. The discharge port of the first crusher (2) is located above the feeding end of the vibrating screen (4). The second crusher (3) is located at the bottom of the vibrating screen (4). The discharge end of the second crusher (3) is connected to the stirring mechanism (5). The top of the mounting base (1) is fixedly connected to the pump body (43). The input end of the pump body (43) is connected to the bottom side of the stirring mechanism (5). The output end of the pump body (43) is connected to the slurry pipe (44). The slurry pipe (44) is connected to the grouting nozzle (9). An inclined conveyor belt (18) is fixedly connected inside the support frame. The discharge end of the top of the conveyor belt (18) is fixedly connected to the top of the mounting frame (8). The discharge end of the vibrating screen (4) is located above the feeding end of the conveyor belt (18).

5. A solid waste landfill treatment device according to claim 4, characterized in that, The packing assembly includes a feed hood (19), a discharge pipe (20), a toothed ring (21), a gear (22), and a second motor (23). The feed hood (19) is fixedly connected to the top of the mounting frame (8). The discharge end of the conveyor belt (18) is located above the feed end of the feed hood (19). The discharge end of the feed hood (19) is rotatably connected to the discharge pipe (20). The toothed ring (21) is fixedly sleeved on the outer wall of the discharge pipe (20) near the top. The second motor (23) is fixedly connected to the top of the mounting frame (8). The output end of the motor is fixedly connected to the gear (22), and the gear (22) and the toothed ring (21) mesh with each other.

6. A solid waste landfill treatment device according to claim 5, characterized in that, The outer wall of the feeding pipe (20) is symmetrically fixedly connected with a limiting bar (24), and the outer wall of the feeding pipe (20) is slidably fitted with a guide pipe (25). The bottom end of the guide pipe (25) is inclined. The inner wall of the guide pipe (25) is symmetrically opened with limiting grooves, and the limiting bar (24) is placed inside the corresponding limiting groove.

7. A solid waste landfill treatment device according to claim 6, characterized in that, The guide tube (25) is connected to the drive frame (26) via a bearing near the bottom outer wall. The top of the mounting frame (8) is symmetrically fixed with motor three (27), the output ends of which extend into the interior of the mounting frame (8) and are fixedly connected with threaded rods (28). Both ends of the drive frame (26) are threadedly connected to the corresponding threaded rods (28).

8. A solid waste landfill treatment device according to claim 7, characterized in that, The bottom inclined section of the guide pipe (25) is slidably connected to the discharge pipe (29), and the bottom end of the discharge pipe (29) is vertically downward. The outer wall of the discharge pipe (29) is fixedly connected to an electric push rod (30), and its output end is fixedly connected to a push frame (31). Both ends of the push frame (31) are fixedly connected to the outer wall of the guide pipe (25). The bottom inclined section of the guide pipe (25) is fixedly connected to a guide rod (32), and the outer wall of the discharge pipe (29) is fixedly connected to a guide sleeve (33), and the guide rod (32) is slidably embedded inside the guide sleeve (33).

9. A solid waste landfill treatment device according to claim 8, characterized in that, A support plate (34) is fixedly connected to the bottom outer wall of the discharge pipe (29). Several electric push rods (35) are fixedly connected to the top of the support plate (34). The output ends of the push rods are fixedly connected to the vertical rods through the support plate (34). The bottom ends of the vertical rods are fixedly connected to the pressure plate (36). The bottom of the support plate (34) is symmetrically connected to the connecting rods, and the length of the connecting rods is greater than the length of the vertical rods. The bottom ends of the connecting rods are fixedly connected to the scraper (37).

10. A solid waste landfill treatment device according to claim 7, characterized in that, The bottom of the drive frame (26) is fixedly connected to the upper housing (38), which is circular and is fitted outside the guide tube (25). The bottom of the upper housing (38) is rotatably connected to the lower housing (39), and the upper housing (38) and the lower housing (39) are connected. The side wall of the lower housing (39) is fixedly connected to the outer wall of the guide tube (25) through a fixing rod. The outer wall of the lower housing (39) is equidistantly connected to the branch pipe (40), and the bottom of the branch pipe (40) is equidistantly connected to the atomizing nozzle. The top of the upper housing (38) is connected to the water supply pipe. A water tank (41) is placed on one side of the mounting frame (8), and a water pump (42) is installed on the top of the water tank (41). The other end of the water supply pipe is connected to the output end of the water pump (42). A sealing gasket is installed at the rotatable connection between the upper housing (38) and the lower housing (39).

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