Laying device and method for rain and sewage diversion covering material in fly ash landfill reservoir area

Abstract

The invention discloses a laying device and laying method for a rain and sewage diversion covering material in a fly ash landfill reservoir area, and relates to the technical field of laying of landfill reservoir area covering materials.The laying device comprises a bottom plate and a fixing frame, main wheels are arranged on the two sides of the fixing frame, and a winding roller is arranged in the fixing frame; and the geomembrane material is wound on the circumferential outer wall of the winding roller. In the rotating process of a second rotating column, multiple sets of cams on the outer wall of the second rotating column can be driven to rotate together, at the moment, through extrusion between the cams and rolling wheels, pressure can act on a rotating frame and a pressing roller, and then secondary pressing on a geomembrane material can be achieved through the pressing roller; the stability of geomembrane materials laid in a reservoir area is guaranteed, the faster the device rolls, the larger the centrifugal force borne by the cam is, then the larger the pressing force applied to the rolling wheel is, and therefore the pressing force of the pressing roller on the geomembrane materials changes along with the rolling speed of the device.

Description

Technical Field

[0001] The invention relates to the technical field of laying covering materials in landfill areas, and in particular to a laying device and a laying method for rainwater and sewage diversion covering materials in fly ash landfill areas. Background Art

[0002] Fly ash landfill area refers to a specific area used for landfilling and treating fly ash from the incineration of domestic waste. Since fly ash produced by the incineration of domestic waste contains harmful substances such as heavy metals and dioxins, if it is randomly piled up or improperly disposed of, it will cause serious pollution to the soil, groundwater and atmospheric environment. The fly ash landfill area provides a safe and standardized disposal site for fly ash. During the construction of the fly ash landfill area, in order to prevent the fly ash leachate from infiltrating into the groundwater and polluting the groundwater and soil, a rainwater and sewage diversion system will be built in the landfill area. In the rainwater and sewage diversion system, the covering material is one of the important components.

[0003] At present, in the process of laying covering materials in landfill areas, workers mostly push geomembranes down the slope and complete the laying by automatically rolling the geomembrane. Although this laying efficiency is relatively high, it may not be able to adapt well to complex terrain, resulting in the laying of geomembranes that do not fit the terrain, wrinkles, and suspension, etc., requiring a lot of manual follow-up processing and repair work. Therefore, there is an urgent need for a laying device and method for rainwater and sewage diversion covering materials in fly ash landfill areas to solve the above problems. Summary of the invention

[0004] In view of the problems in the related art, the present invention proposes a laying device and a laying method for rainwater and sewage diversion covering materials in a fly ash landfill area to overcome the above-mentioned technical problems existing in the existing related art.

[0005] The technical solution of the present invention is achieved in this way:

[0006] A laying device for rainwater and sewage diversion covering materials in a fly ash landfill area comprises a bottom plate and a fixed frame, main wheels are arranged on both sides of the fixed frame, a winding roller is arranged inside the fixed frame, and geomembrane material is wound on the circumferential outer wall of the winding roller, a limiting sleeve is fixedly connected to one side of the bottom plate, a first rotating column is rotatably connected to the inside of the limiting sleeve, and both ends of the first rotating column are fixedly connected to secondary wheels;

[0007] A first pressing assembly for preliminarily pressing the geomembrane material is arranged above the fixing frame;

[0008] A second pressing component for deeply pressing the geomembrane material is provided on one side of the bottom plate away from the limiting sleeve;

[0009] Speed ​​limiting components for preventing the main wheels from rolling overspeed are arranged on both sides of the fixing frame.

[0010] Furthermore, the first clamping assembly includes a square frame arranged on the top of the fixed frame, a clamping hole is opened on the top outer wall of the fixed frame, and a clamping rod is fixedly connected to the bottom outer wall of the square frame, and the clamping rod cooperates with the clamping hole, and the top outer wall of the square frame is fixedly connected to arc plates distributed at equal distances, and the circumferential outer wall of the arc plate is fixedly connected to an air collecting hood, and an air duct is inserted into one side of the air collecting hood, and one end of the air duct away from the air collecting hood passes through the top of the base plate, and the bottom outer wall of the base plate is fixedly connected to an air outlet duct, and the end of the air duct passing through the top of the base plate is inserted into the inside of the air outlet duct.

[0011] Furthermore, a wind-breaking block is fixedly connected to the top outer wall of the wind collecting hood, and the cross-section of the wind-breaking block is in the shape of a fish fin.

[0012] Furthermore, both ends of the winding roller are fixedly connected with a rotating shaft, a mounting seat is provided inside the fixed frame, a first rotating shaft is fixedly connected to one side of the mounting seat, the first rotating shaft is fixedly connected to the main wheel, a slot is provided at the bottom of the mounting seat, a clamping column is fixedly connected to the circumferential outer wall of the rotating shaft, the clamping column is clamped in the inside of the slot, and the rotating shaft is fixedly connected to the mounting seat through a fixing screw.

[0013] The cam is connected to the circumferential outer wall of the first rotating shaft by the second pressing assembly, and the cam is connected to the circumferential outer wall of the second rotating shaft by the second pressing assembly. The top outer wall of the bottom plate is fixedly connected to the installation box, and one side of the installation box is rotatably connected to the second rotating column, and the first transmission wheel is fixedly connected to the circumferential outer wall of the second rotating column, and the circumferential outer wall of the second rotating column is fixedly connected to cams distributed at equal distances. A rotating frame is provided on one side of the bottom plate, and the inner walls on both sides of the rotating frame are rotatably connected to the second rotating shaft, and one end of the second rotating shaft is fixedly connected to a pressure roller, and the pressure roller is pressed on the top of the geomembrane material, and the top outer wall of the rotating frame is fixedly connected to a rotating seat, and the inner walls on both sides of the rotating seat are rotatably connected to rollers, and the circumferential outer wall of the cam contacts the circumferential outer wall of the roller, and the outer walls on both sides of the rotating frame are fixedly connected to connecting plates, and the top outer wall of the connecting plate is fixedly connected to a guide rod, and one end of the guide rod passes through the top of the bottom plate.

[0014] Furthermore, a first spring is fixedly connected to the top outer wall of the connecting plate, and one end of the first spring away from the connecting plate is fixedly connected to the bottom outer wall of the bottom plate.

[0015] Further, the circumferential outer wall of the second rotating column is fixedly connected to the first bevel gear, the circumferential outer wall of the first bevel gear is meshed with the second bevel gear, the bottom outer wall of the second bevel gear is fixedly connected to the third rotating column, the circumferential outer wall of the third rotating column is slidably connected to a slide cylinder and a third bevel gear, the slide cylinder is fixedly connected to the third bevel gear, the circumferential outer wall of the third bevel gear is meshed with a fourth bevel gear, the fourth bevel gear is fixedly connected to one end of the second rotating shaft, the circumferential outer wall of the slide cylinder is fixedly connected to a bearing seat, the top outer wall of the bearing seat is fixedly connected to a support plate, and the support plate is fixedly connected to the bottom outer wall of the connecting plate.

[0016] Further, the speed limiting assembly includes a first fixed cylinder fixedly connected to the outer walls on both sides of the fixed frame, the circumferential outer wall of the first rotating shaft is fixedly connected to a rotating disk, one outer wall of the rotating disk is rotatably connected to a first connecting rod, the number of the first connecting rods is two groups, one end of one group of first connecting rods is rotatably connected to a second connecting rod, and one end of the second connecting rod away from the first connecting rod is rotatably connected to an outer wall of one side of the other first connecting rod, and one end of the two groups of first connecting rods are both provided with a counterweight block, one end of the outer wall of one side of the rotating disk is fixedly connected to a second fixed cylinder, an inner wall of one end of the second fixed cylinder is fixedly connected to a second spring, the other end of the second spring is fixedly connected to a sliding column, the sliding column is slidably connected to the second fixed cylinder, and one end of the sliding column extending to the outside of the second fixed cylinder is rotatably connected to the first connecting rod.

[0017] Furthermore, a friction wheel is fixedly connected to the interior of the counterweight block, and a rubber pad is fixedly connected to the circumferential inner wall of the first fixed cylinder.

[0018] The method for laying the rainwater and sewage diversion covering material in the fly ash landfill area is applied to the laying device for the rainwater and sewage diversion covering material in the fly ash landfill area described in the above embodiment, and comprises the following steps:

[0019] S1: Roll up the geomembrane material on the winding roller, position it through the clamping column and the slot of the mounting seat, lock it with a fixing screw, and fix the initial end of the geomembrane material on the top edge of the landfill area to ensure that the device rolls down along the designed route;

[0020] S2: Release the device to let it roll freely along the slope of the landfill area. The main wheel and the secondary wheel roll together to keep the device stable. The main wheel drives the winding roller to rotate synchronously through the first rotating shaft, and releases the geomembrane material at a uniform speed. The arc plate on the top of the device guides the airflow into the wind collecting hood, and sprays downward from the air outlet pipe through the air guide pipe, exerting airflow pressure on the surface of the geomembrane to achieve initial compression and reduce hollowing;

[0021] S3: The main wheel drives the second transmission wheel, which drives the cam to rotate through the transmission belt, periodically squeezing the roller so that the pressure roller performs secondary dynamic compression on the geomembrane material. The pressure roller rotates under the drive of the cam, synchronously completing rolling leveling and eliminating wrinkles. When the device speed is too fast, the centrifugal force of the counterweight block of the speed limiting assembly increases, pushing the friction wheel to contact the rubber pad to slow down, and automatically reset after the speed is reduced to ensure uniform paving. The first spring cooperates with the guide rod to allow the pressure roller to adaptively adjust its height with the undulations of the terrain to compensate for uneven ground.

[0022] Beneficial effects of the present invention:

[0023] The laying device and method of the rainwater and sewage diversion covering material for the fly ash landfill area provided by the present invention realize the locking and fixing of the winding roller by a fixing screw, thereby ensuring the stability of the winding roller during the subsequent release of the geomembrane material, and then pressing the initial end of the geomembrane material to the top of the reservoir area and pushing the device down as a whole. At this time, the rotation of the main wheel can drive the first rotating shaft to rotate, and the first rotating shaft is fixedly connected to the mounting seat, so as to drive the winding roller to rotate together, thereby realizing the unwinding of the geomembrane material on the outer wall of the winding roller. At the same time, the walking mechanism of the whole device consists of two groups of main wheels and two groups of auxiliary wheels. Therefore, when the whole device rolls down from the top of the landfill area, it can remain stable and will not deviate or skew significantly, thereby effectively improving the laying accuracy of the geomembrane material.

[0024] The present invention provides a laying device and method for rainwater and sewage diversion covering materials in a fly ash landfill area. Through the first clamping component, a plurality of groups of arc plates located on the top of the fixed frame can play a good diversion role in the process of the overall rolling of the device. At the same time, the cross-section of the arc plates is arc-shaped, which can reduce the resistance of the airflow when the device descends and avoid the device from tipping over. In addition, the wind collecting hood arranged on the top of the arc plates can guide a large amount of airflow into the air duct during the rolling of the device. Then the airflow is discharged from the air outlet pipe through the air duct. The air outlet pipe is located directly above the geomembrane material. Therefore, the airflow discharged from the air outlet pipe can exert downward airflow pressure on the geomembrane material, thereby achieving one-time compression of the geomembrane material and avoiding a large number of hollows in the geomembrane material during the laying process.

[0025] The paving device and method for rainwater and sewage diversion covering materials in the fly ash landfill area provided by the present invention can drive the second transmission wheel to rotate through the first rotating shaft when the main wheel rolls, and the second transmission wheel can drive the first transmission wheel to rotate through the transmission belt, and the rotation of the first transmission wheel can drive the second rotating column to rotate together, and during the rotation of the second rotating column, it can drive multiple groups of cams on its outer wall to rotate together, and at this time, through the extrusion between the cam and the roller, pressure can be applied to the rotating frame and the pressure roller, and then the geomembrane material can be secondary pressed by the pressure roller, thereby ensuring the stability of the geomembrane material laid in the reservoir area, and the device rolling The faster it moves, the greater the centrifugal force on the cam, and the greater the pressing force applied to the roller, so that the pressing force of the pressure roller on the geomembrane material changes with the rolling speed of the device. During the rotation of the second rotating column, the first bevel gear can be driven to rotate together. At this time, the first bevel gear and the second bevel gear are engaged with each other, so that the third rotating column can be driven to rotate together. When the third rotating column rotates, the third bevel gear can be driven to rotate together. At this time, the third bevel gear and the fourth bevel gear are engaged with each other, so as to drive the entire pressure roller to rotate, so that the pressure roller can roll and level the geomembrane material in the process of pressing it, thereby further improving the laying quality of the geomembrane material.

[0026] The present invention provides a laying device and method for rainwater and sewage diversion covering materials in a fly ash landfill reservoir area. Through the speed limiting component, when the main wheel follows the device and rolls down from the top of the reservoir area, the rotating disk located in the first fixed cylinder will also rotate along with the rotation of the first rotating shaft. When the main wheel rolls too fast, the counterweight block at one end of the first connecting rod will generate a large centrifugal force, thereby causing the first connecting rod and the second connecting rod to be displaced. At this time, the friction wheel at one end of the counterweight block is pressed against the rubber pad against the inner wall of the circumference of the first fixed cylinder. Through the friction between the friction wheel and the rubber pad, the main wheel can be effectively decelerated, thereby avoiding the situation where the entire device rolls too fast and causes poor laying quality of the geomembrane material. When the rolling speed of the device decreases, the second spring in the second fixed cylinder in a stretched state will immediately reset, thereby driving the first connecting rod and the second connecting rod to reset. At this time, the friction wheel is separated from the rubber pad, thereby releasing the speed limit on the main wheel, so that the device can descend at a stable speed to lay the geomembrane material. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0028] Figure 1 It is a schematic diagram of the overall rear view structure of the present invention.

[0029] Figure 2 For the present invention Figure 1 Schematic diagram of the enlarged structure at point A in the middle.

[0030] Figure 3 It is a schematic diagram of the overall front structure of the present invention.

[0031] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure at point B in the middle.

[0032] Figure 5 It is a schematic diagram of the overall bottom-up structure of the present invention.

[0033] Figure 6 For the present invention Figure 5 Schematic diagram of the enlarged structure at point C in the middle.

[0034] Figure 7 It is a schematic diagram of the overall structure of the fixed frame after being disassembled.

[0035] Figure 8 It is a front view planar structure schematic diagram of the present invention.

[0036] Fig. 9 For the present invention Figure 8 Schematic diagram of the enlarged structure at D in the middle.

[0037] Fig.10 It is a schematic diagram of the half-section structure of the winding roller of the present invention.

[0038] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure at E in the middle.

[0039] Fig.12 It is a schematic diagram of a partial cross-sectional structure of the speed limiting component of the present invention.

[0040] Fig.13 It is a schematic diagram of the working process of the present invention.

[0041] In the figure:

[0042] 1. Bottom plate; 2. Fixed frame; 3. Main wheel; 4. First rotating shaft; 5. Secondary wheel; 6. First rotating column; 7. Limiting sleeve; 8. Winding roller; 9. Arc plate; 10. Air duct; 11. Wind-breaking block; 12. Frame; 13. Wind hood; 14. Mounting box; 15. Second rotating column; 16. Transmission belt; 17. First transmission wheel; 18. Cam; 19. Roller; 20. Pressing roller; 21. Rotating seat; 22. Rotating frame; 23. First bevel gear; 24. Second bevel gear; 25. Third bevel gear; 26. Guide rod; 27. First Fixed cylinder; 28. Mounting seat; 29. ​​Fixed screw; 30. Geomembrane material; 31. Second transmission wheel; 32. Connecting plate; 33. First spring; 34. Air outlet pipe; 35. Clamping hole; 36. Third rotating column; 38. Sliding cylinder; 39. Fourth bevel gear; 40. Bearing seat; 41. Support plate; 42. Clamping column; 43. Clamping groove; 44. Rotating shaft; 45. Rotating disk; 46. First connecting rod; 47. Counterweight; 48. Friction wheel; 49. Second connecting rod; 50. Rubber pad; 51. Second fixed cylinder; 52. Second spring; 53. Sliding column. DETAILED DESCRIPTION

[0043] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0044] See also Figure 1-Figure 13 The laying device of the rainwater and sewage diversion covering material in the fly ash landfill area comprises a bottom plate 1 and a fixed frame 2. Main wheels 3 are arranged on both sides of the fixed frame 2. A winding roller 8 is arranged inside the fixed frame 2. The geomembrane material 30 is wound on the circumferential outer wall of the winding roller 8. A limiting sleeve 7 is fixedly connected to one side of the bottom plate 1. A first rotating column 6 is rotatably connected inside the limiting sleeve 7. Both ends of the first rotating column 6 are fixedly connected to auxiliary wheels 5.

[0045] A first pressing assembly for preliminarily pressing the geomembrane material 30 is provided above the fixing frame 2;

[0046] A second pressing component for deeply pressing the geomembrane material 30 is provided on one side of the bottom plate 1 away from the limiting sleeve 7;

[0047] Speed ​​limiting components are provided on both sides of the fixed frame 2 to prevent the main wheel 3 from rolling overspeed.

[0048] Preferably, the first clamping assembly includes a square frame 12 arranged on the top of the fixed frame 2, a clamping hole 35 is opened on the top outer wall of the fixed frame 2, a clamping rod is fixedly connected to the bottom outer wall of the square frame 12, the clamping rod cooperates with the clamping hole 35, the top outer wall of the square frame 12 is fixedly connected to the arc-shaped plates 9 distributed at equal distances, the circumferential outer wall of the arc-shaped plates 9 is fixedly connected to the wind collecting cover 13, one side of the wind collecting cover 13 is plugged with an air duct 10, and the end of the air duct 10 away from the wind collecting cover 13 is connected from the bottom plate 1 The top passes through, and the bottom outer wall of the base plate 1 is fixedly connected with an air outlet pipe 34. One end of the air guide pipe 10 passing through the top of the base plate 1 is inserted into the inside of the air outlet pipe 34. When the device rolls along the slope, the arc plate 9 guides the airflow into the wind collecting hood 13, and the airflow is transported to the air outlet pipe 34 through the air guide pipe 10 and sprayed downward to the surface of the geomembrane, realizing pneumatic pre-compression and reducing hollowing and wrinkles. The square frame 12 can be quickly disassembled and assembled through the clamping rod and the clamping hole 35 of the fixed frame 2, which is convenient for maintenance and replacement.

[0049] Preferably, the top outer wall of the wind collecting hood 13 is fixedly connected with a wind breaking block 11, and the cross-section of the wind breaking block 11 is fin-shaped. The fish-fin-shaped wind breaking block 11 changes the direction of the airflow, reduces the vortex at the top of the wind collecting hood 13, improves the airflow collection efficiency, and at the same time reduces the wind resistance when the device rolls, thereby enhancing stability.

[0050] Preferably, both ends of the winding roller 8 are fixedly connected with a rotating shaft 44, a mounting seat 28 is provided inside the fixed frame 2, one side of the mounting seat 28 is fixedly connected with a first rotating shaft 4, the first rotating shaft 4 is fixedly connected to the main wheel 3, a slot 43 is provided at the bottom of the mounting seat 28, a clamping column 42 is fixedly connected to the circumferential outer wall of the rotating shaft 44, the clamping column 42 is clamped in the inside of the slot 43, the rotating shaft 44 is fixedly connected to the mounting seat 28 through a fixing screw 29, the winding roller 8 is positioned with the slot 43 of the mounting seat 28 through the clamping column 42, and the fixing screw 29 rotates synchronously with the main wheel 3 after being locked, to ensure that the geomembrane material 30 is evenly unwound. At the same time, the clamping structure simplifies the disassembly and assembly process, thereby improving the construction efficiency.

[0051] Preferably, the second clamping assembly includes a second transmission wheel 31 fixedly connected to the circumferential outer wall of the first rotating shaft 4, the second transmission wheel 31 is transmission-connected to the transmission belt 16, the second transmission wheel 31 is transmission-connected to the first transmission wheel 17 through the transmission belt 16, the top outer wall of the bottom plate 1 is fixedly connected to the installation box 14, one side of the installation box 14 is rotationally connected to the second rotating column 15, the first transmission wheel 17 is fixedly connected to the circumferential outer wall of the second rotating column 15, the circumferential outer wall of the second rotating column 15 is fixedly connected to equidistantly distributed cams 18, a rotating frame 22 is provided on one side of the bottom plate 1, both side inner walls of the rotating frame 22 are rotationally connected to the second rotating shaft, one end of the second rotating shaft is fixedly connected to the pressure roller 20, and the pressure roller 20 pressures Closely above the geomembrane material 30, the top outer wall of the rotating frame 22 is fixedly connected with a rotating seat 21, and the inner walls on both sides of the rotating seat 21 are rotatably connected with rollers 19. The circumferential outer wall of the cam 18 contacts the circumferential outer wall of the roller 19. The outer walls on both sides of the rotating frame 22 are fixedly connected with connecting plates 32, and the top outer wall of the connecting plate 32 is fixedly connected with a guide rod 26. One end of the guide rod 26 passes through the top of the bottom plate 1. The main wheel 3 rotates to drive the cam 18 to rotate through the transmission belt 16. The periodic squeezing roller 19 drives the pressure roller 20 to dynamically press the geomembrane. The pressure is automatically adjusted with the speed (the faster the speed, the greater the centrifugal force) to adapt to complex terrain. The high-frequency vibration of the cam 18 eliminates the gap between the geomembrane and the ground, improving the sealing performance

[0052] Preferably, the top outer wall of the connecting plate 32 is fixedly connected with a first spring 33, and one end of the first spring 33 away from the connecting plate 32 is fixedly connected to the bottom outer wall of the base plate 1. The first spring 33 provides elastic buffering for the pressure roller 20, allowing it to adaptively adjust its height with the terrain, compensate for the unevenness of the ground, avoid local stress concentration, and absorb device vibration to extend the life of the equipment.

[0053] Preferably, the circumferential outer wall of the second rotating column 15 is fixedly connected to the first bevel gear 23, the circumferential outer wall of the first bevel gear 23 is meshed with the second bevel gear 24, the bottom outer wall of the second bevel gear 24 is fixedly connected to the third rotating column 36, the circumferential outer wall of the third rotating column 36 is slidably connected to the slide cylinder 38 and the third bevel gear 25, the slide cylinder 38 is fixedly connected to the third bevel gear 25, the circumferential outer wall of the third bevel gear 25 is meshed with a fourth bevel gear 39, the fourth bevel gear 39 is fixedly connected to one end of the second rotating shaft, the circumferential outer wall of the slide cylinder 38 is fixedly connected to the bearing seat 40, the top outer wall of the bearing seat 40 is fixedly connected to the support plate 41, the support plate 41 is fixedly connected to the bottom outer wall of the connecting plate 32, the cam 18 drives the first bevel gear 23, and drives the pressure roller 20 to rotate through a multi-stage gear transmission, rolling and leveling the geomembrane while pressing, eliminating wrinkles and enhancing bonding, and the slide cylinder 38 allows the third bevel gear 25 to move axially to adapt to geomembrane materials 30 of different thicknesses.

[0054] Preferably, the speed limiting assembly includes a first fixed cylinder 27 fixedly connected to the outer walls of both sides of the fixed frame 2, a rotating disk 45 is fixedly connected to the circumferential outer wall of the first rotating shaft 4, a first connecting rod 46 is rotatably connected to the outer wall of one side of the rotating disk 45, and the number of the first connecting rods 46 is two groups, one end of one group of first connecting rods 46 is rotatably connected to the second connecting rod 49, and the end of the second connecting rod 49 away from the first connecting rod 46 is rotatably connected to the outer wall of one side of the other first connecting rod 46, and a counterweight 47 is provided at one end of the two groups of first connecting rods 46. The outer wall of one side of the rotating disk 45 is fixed A second fixed cylinder 51 is connected, and a second spring 52 is fixedly connected to the inner wall of one end of the second fixed cylinder 51, and a sliding column 53 is fixedly connected to the other end of the second spring 52. The sliding column 53 is slidably connected to the second fixed cylinder 51, and one end of the sliding column 53 extending to the outside of the second fixed cylinder 51 is rotatably connected to the first connecting rod 46. When the main wheel 3 overspeeds, the centrifugal force of the counterweight block 47 increases, pushing the connecting rod to expand so that the friction wheel 48 contacts the rubber pad 50, and the speed is automatically limited by friction resistance; no external power is required to ensure that the device slides down at a uniform speed to prevent the geomembrane material 30 from tearing or tipping over.

[0055] Preferably, a friction wheel 48 is fixedly connected to the inside of the counterweight 47, and a rubber pad 50 is fixedly connected to the circumferential inner wall of the first fixed cylinder 27. When the friction wheel 48 contacts the rubber pad 50, kinetic energy is consumed through high friction, thereby achieving efficient braking of the main wheel 3.

[0056] The method for laying the rainwater and sewage diversion covering material in the fly ash landfill area is applied to the laying device for the rainwater and sewage diversion covering material in the fly ash landfill area of ​​the above embodiment, and comprises the following steps:

[0057] Step 1: Reel the geomembrane material 30 onto the reel 8, position it through the clamping column 42 and the clamping groove 43 of the mounting seat 28, lock it with the fixing screw 29, and fix the initial end of the geomembrane material 30 on the top edge of the landfill area to ensure that the device rolls down along the designed route;

[0058] Step 2: Release the device to let it roll freely along the slope of the landfill area. The main wheel 3 and the secondary wheel 5 roll together to keep the device stable. The main wheel 3 drives the winding roller 8 to rotate synchronously through the first rotating shaft 4, and releases the geomembrane material 30 at a uniform speed. The arc plate 9 on the top of the device guides the airflow into the wind collecting cover 13, and sprays downward from the air outlet pipe 34 through the air guide pipe 10, exerting airflow pressure on the surface of the geomembrane to achieve initial compression and reduce hollowing;

[0059] Step three: The main wheel 3 drives the second transmission wheel 31, which drives the cam 18 to rotate through the transmission belt 16, and periodically squeezes the roller 19, so that the pressure roller 20 performs secondary dynamic compression on the geomembrane material 30. The pressure roller 20 rotates under the drive of the cam 18, and synchronously completes rolling leveling to eliminate wrinkles. When the device speed is too fast, the centrifugal force of the counterweight block 47 of the speed limiting assembly increases, pushing the friction wheel 48 to contact the rubber pad 50 to slow down, and automatically resets after the speed is reduced to ensure uniform paving. The first spring 33 cooperates with the guide rod 26 to allow the pressure roller 20 to adaptively adjust its height with the terrain and compensate for the uneven ground.

[0060] In summary, with the help of the above technical scheme of the present invention, when in use, the staff will place the winding roller 8 with the geomembrane material 30 rolled up in the mounting seat 28, and at the same time, the winding roller 8 is locked and fixed by the fixing screw 29 to ensure the stability of the winding roller 8 during the subsequent release of the geomembrane material 30, and then the initial end of the geomembrane material 30 is pressed against the top of the storage area and the device is pushed down as a whole. At this time, the rotation of the main wheel 3 can drive the first rotating shaft 4 to rotate, and at the same time, the first rotating shaft 4 is fixedly connected to the mounting seat 28, so that the winding roller 8 can be driven to rotate together to realize the unwinding of the geomembrane material 30 on the outer wall of the winding roller 8. At the same time, the walking mechanism of the entire device is composed of two sets of main wheels 3 and two sets of secondary wheels 5. Therefore, when the entire device rolls down from the top of the landfill storage area, it can remain stable and will not be greatly offset or skewed, thereby effectively improving the laying accuracy of the geomembrane material 30.

[0061] During the overall rolling of the device, the multiple groups of arc plates 9 located on the top of the fixed frame 2 can play a good diversion role. At the same time, the cross-section of the arc plate 9 is arc-shaped, which can reduce the resistance of the airflow when the device descends and avoid the device from tipping over. The wind collecting hood 13 arranged on the top of the arc plate 9 can introduce a large amount of airflow into the air guide pipe 10 during the rolling of the device. The airflow is then discharged from the air outlet pipe 34 through the air guide pipe 10, and the air outlet pipe 34 is located directly above the geomembrane material 30. Therefore, the airflow discharged from the air outlet pipe 34 can exert a downward airflow pressure on the geomembrane material 30, thereby achieving a one-time compression of the geomembrane material 30 and avoiding a large number of hollows in the geomembrane material 30 during the laying process. At the same time, when the main wheel 3 rolls, the first rotating shaft 4 can drive the second The second transmission wheel 31 rotates, and at this time, the second transmission wheel 31 drives the first transmission wheel 17 to rotate through the transmission belt 16. The rotation of the first transmission wheel 17 can drive the second rotating column 15 to rotate together. During the rotation of the second rotating column 15, the multiple groups of cams 18 on its outer wall can be driven to rotate together. At this time, through the extrusion between the cam 18 and the roller 19, pressure can be applied to the rotating frame 22 and the pressure roller 20, and then the pressure roller 20 can be used to achieve secondary compression of the geomembrane material 30, ensuring the stability of the geomembrane material 30 laid in the reservoir area. The faster the device rolls, the greater the centrifugal force on the cam 18, and the greater the compression force applied to the roller 19, so that the compression force of the pressure roller 20 on the geomembrane material 30 changes with the rolling speed of the device;

[0062] During the rotation of the second rotating column 15, the first bevel gear 23 can be driven to rotate together. At this time, the first bevel gear 23 and the second bevel gear 24 are meshed with each other, so that the third rotating column 36 can be driven to rotate together. When the third rotating column 36 rotates, the third bevel gear 25 can be driven to rotate together. At this time, the third bevel gear 25 and the fourth bevel gear 39 are meshed with each other, so that the entire pressing roller 20 can be driven to rotate, so that the pressing roller 20 can roll and level the geomembrane material 30 during the process of pressing it, thereby further improving the laying quality of the geomembrane material 30.

[0063] When the main wheel 3 follows the device to roll down from the top of the reservoir area, the rotating disk 45 located in the first fixed cylinder 27 will also rotate with the rotation of the first rotating shaft 4. When the main wheel 3 rolls too fast, the counterweight 47 at one end of the first connecting rod 46 will generate a large centrifugal force, thereby causing the first connecting rod 46 and the second connecting rod 49 to be displaced. At this time, the friction wheel 48 at one end of the counterweight 47 is pressed against the rubber pad 50 on the inner wall of the circumference of the first fixed cylinder 27. Through the friction between the friction wheel 48 and the rubber pad 50, the main wheel 3 can be effectively decelerated, thereby preventing the entire device from rolling too fast and causing poor laying quality of the geomembrane material 30. When the rolling speed of the device decreases, the second spring 52 in the second fixed cylinder 51 in a stretched state will immediately reset, thereby driving the first connecting rod 46 and the second connecting rod 49 to reset. At this time, the friction wheel 48 is separated from the rubber pad 50, thereby releasing the speed limit on the main wheel 3, so that the device can descend at a stable speed to lay the geomembrane material 30.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for laying rainwater and sewage diversion covering materials in fly ash landfill areas, comprising a bottom plate (1) and a fixing frame (2), characterized in that: Main wheels (3) are arranged on both sides of the fixed frame (2), a winding roller (8) is arranged inside the fixed frame (2), and the geomembrane material (30) is wound on the circumferential outer wall of the winding roller (8); a limiting sleeve (7) is fixedly connected to one side of the bottom plate (1), and a first rotating column (6) is rotatably connected inside the limiting sleeve (7), and both ends of the first rotating column (6) are fixedly connected to auxiliary wheels (5); A first pressing component for preliminarily pressing the geomembrane material (30) is arranged above the fixing frame (2); A second pressing component for deeply pressing the geomembrane material (30) is provided on a side of the bottom plate (1) away from the limiting sleeve (7); Speed ​​limiting components for preventing the main wheel (3) from rolling overspeed are arranged on both sides of the fixed frame (2).

2. The laying device for rainwater and sewage diversion covering material in fly ash landfill area according to claim 1 is characterized in that: The first clamping assembly comprises a square frame (12) arranged on the top of the fixed frame (2), a clamping hole (35) is opened on the top outer wall of the fixed frame (2), a clamping rod is fixedly connected to the bottom outer wall of the square frame (12), and the clamping rod cooperates with the clamping hole (35), the top outer wall of the square frame (12) is fixedly connected to arc plates (9) distributed at equal distances, the circumferential outer wall of the arc plate (9) is fixedly connected to an air collecting hood (13), an air duct (10) is inserted into one side of the air collecting hood (13), and the end of the air duct (10) away from the air collecting hood (13) passes through the top of the base plate (1), and the bottom outer wall of the base plate (1) is fixedly connected to an air outlet pipe (34), and the end of the air duct (10) passing through the top of the base plate (1) is inserted into the inside of the air outlet pipe (34).

3. The laying device for rainwater and sewage diversion covering material in fly ash landfill area according to claim 2 is characterized in that: A wind-breaking block (11) is fixedly connected to the top outer wall of the wind collecting cover (13), and the cross section of the wind-breaking block (11) is in the shape of a fish fin.

4. The laying device for rainwater and sewage diversion covering material in fly ash landfill area according to claim 3 is characterized in that: Both ends of the winding roller (8) are fixedly connected with a rotating shaft (44); a mounting seat (28) is arranged inside the fixed frame (2); a first rotating shaft (4) is fixedly connected to one side of the mounting seat (28); the first rotating shaft (4) is fixedly connected to the main wheel (3); a clamping groove (43) is provided at the bottom of the mounting seat (28); a clamping column (42) is fixedly connected to the circumferential outer wall of the rotating shaft (44); the clamping column (42) is clamped inside the clamping groove (43); and the rotating shaft (44) is fixedly connected to the mounting seat (28) via a fixing screw (29).

5. The device for laying rainwater and sewage diversion covering materials in fly ash landfill area according to claim 4 is characterized in that: The second clamping assembly comprises a second transmission wheel (31) fixedly connected to the circumferential outer wall of the first rotating shaft (4); the second transmission wheel (31) is transmission-connected to a transmission belt (16); the second transmission wheel (31) is transmission-connected to the first transmission wheel (17) via the transmission belt (16); the top outer wall of the base plate (1) is fixedly connected to a mounting box (14); one side of the mounting box (14) is rotationally connected to a second rotating column (15); the first transmission wheel (17) is fixedly connected to the circumferential outer wall of the second rotating column (15); the circumferential outer wall of the second rotating column (15) is fixedly connected to cams (18) distributed at equal distances; a rotating frame (20) is provided on one side of the base plate (1). 2), the inner walls on both sides of the rotating frame (22) are rotatably connected to a second rotating shaft, one end of the second rotating shaft is fixedly connected to a pressure roller (20), the pressure roller (20) is pressed tightly on the top of the geomembrane material (30), the top outer wall of the rotating frame (22) is fixedly connected to a rotating seat (21), the inner walls on both sides of the rotating seat (21) are rotatably connected to rollers (19), the circumferential outer wall of the cam (18) is in contact with the circumferential outer wall of the roller (19), the outer walls on both sides of the rotating frame (22) are fixedly connected to connecting plates (32), the top outer wall of the connecting plate (32) is fixedly connected to a guide rod (26), one end of the guide rod (26) passes through the top of the bottom plate (1).

6. The laying device for rainwater and sewage separation covering material in fly ash landfill area according to claim 5 is characterized in that: A first spring (33) is fixedly connected to the top outer wall of the connecting plate (32); one end of the first spring (33) away from the connecting plate (32) is fixedly connected to the bottom outer wall of the bottom plate (1).

7. The laying device for rainwater and sewage separation covering material in fly ash landfill area according to claim 6 is characterized in that: The circumferential outer wall of the second rotating column (15) is fixedly connected to the first bevel gear (23), the circumferential outer wall of the first bevel gear (23) is meshed with the second bevel gear (24), the bottom outer wall of the second bevel gear (24) is fixedly connected to the third rotating column (36), the circumferential outer wall of the third rotating column (36) is slidably connected to a slide cylinder (38) and a third bevel gear (25), the slide cylinder (38) is fixedly connected to the third bevel gear (25), the circumferential outer wall of the third bevel gear (25) is meshed with a fourth bevel gear (39), the fourth bevel gear (39) is fixedly connected to one end of the second rotating shaft, the circumferential outer wall of the slide cylinder (38) is fixedly connected to a bearing seat (40), the top outer wall of the bearing seat (40) is fixedly connected to a support plate (41), and the support plate (41) is fixedly connected to the bottom outer wall of the connecting plate (32).

8. The device for laying rainwater and sewage diversion covering materials in fly ash landfill area according to claim 7 is characterized in that: The speed limiting assembly comprises a first fixed cylinder (27) fixedly connected to the outer walls on both sides of the fixed frame (2); a rotating disk (45) is fixedly connected to the circumferential outer wall of the first rotating shaft (4); a first connecting rod (46) is rotatably connected to the outer wall of one side of the rotating disk (45); the first connecting rod (46) is in two groups; one end of one group of first connecting rods (46) is rotatably connected to a second connecting rod (49); one end of the second connecting rod (49) away from the first connecting rod (46) is rotatably connected to the outer wall of one side of the other first connecting rod (46) A counterweight (47) is provided at one end of the two groups of the first connecting rods (46); a second fixed cylinder (51) is fixedly connected to an outer wall of one side of the rotating disk (45); a second spring (52) is fixedly connected to an inner wall of one end of the second fixed cylinder (51); a sliding column (53) is fixedly connected to the other end of the second spring (52); the sliding column (53) is slidably connected to the second fixed cylinder (51); and one end of the sliding column (53) extending to the outside of the second fixed cylinder (51) is rotatably connected to the first connecting rod (46).

9. According to the device for laying rainwater and sewage diversion covering materials in fly ash landfill areas as described in claim 8, a friction wheel (48) is fixedly connected to the inside of the counterweight block (47), and a rubber pad (50) is fixedly connected to the circumferential inner wall of the first fixed cylinder (27).

10. A method for laying a rainwater-sewage separation covering material in a fly ash landfill area, applied to the device for laying a rainwater-sewage separation covering material in a fly ash landfill area according to claim 9, characterized in that: The following steps are involved: S1: The geomembrane material (30) is rolled up on the winding roller (8), positioned by means of the clamping column (42) and the clamping groove (43) of the mounting seat (28), locked with a fixing screw (29), and the initial end of the geomembrane material (30) is fixed to the top edge of the landfill area to ensure that the device rolls down along the designed route; S2: The device is released to allow it to roll freely along the slope of the landfill area. The main wheel (3) and the secondary wheel (5) roll in coordination to keep the device stable. The main wheel (3) drives the winding roller (8) to rotate synchronously via the first rotating shaft (4), and the geomembrane material (30) is released at a uniform speed. The arc plate (9) on the top of the device guides the airflow into the air collecting hood (13), and the air is ejected downward from the air outlet pipe (34) through the air guide pipe (10), exerting airflow pressure on the surface of the geomembrane to achieve initial compaction and reduce hollowing. S3: The main wheel (3) drives the second transmission wheel (31), which drives the cam (18) to rotate through the transmission belt (16), and periodically squeezes the roller (19), so that the pressure roller (20) performs secondary dynamic compression on the geomembrane material (30). The pressure roller (20) rotates under the drive of the cam (18), and synchronously completes rolling leveling and eliminates wrinkles. When the speed of the device is too fast, the centrifugal force of the counterweight block (47) of the speed limiting assembly increases, pushing the friction wheel (48) to contact the rubber pad (50) to slow down, and automatically reset after the speed is reduced to ensure uniform paving. At the same time, the first spring (33) cooperates with the guide rod (26) to allow the pressure roller (20) to adjust its height adaptively with the terrain to compensate for the unevenness of the ground.

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