RDF Tracked Mobile Crushing Station

Abstract

This invention relates to the field of crushing plant technology and discloses an RDF tracked mobile crushing plant, comprising: an electrical control system and diesel generator set, a hydraulic station, a dual-shaft bale opener, a belt conveyor, a magnetic separator, and a tracked base. The hydraulic station drives the dual-shaft bale opener; the dual-shaft bale opener crushes RDF material; the belt conveyor is located below the dual-shaft bale opener to output the crushed RDF material; the magnetic separator is located on the belt conveyor to adsorb and screen out any mixed magnetic materials; the tracked base is located at the bottom of the crushing plant to support the components and move along the road surface; the electrical control system and diesel generator set control the operation of each component and provide power to them. This invention, based on a modular design for RDF material recovery, enables rapid deployment and relocation, proximity to the material source, and reduced time and material transportation costs. The tracked design adapts to complex terrains such as rugged, muddy, and slippery areas.

Description

Technical Field

[0001] This invention relates to the field of crushing plant technology, and more specifically, to the RDF tracked mobile crushing plant. Background Technology

[0002] Waste-derived fuel (RDF) is fuel made by crushing, sorting, drying, adding chemicals, and compressing combustible waste. RDF materials are complex, including bulky waste such as old sofas and mattresses, everyday waste such as waste plastic bottles, waste rubber, waste tire fragments, and woven bags, kitchen waste, and forestry waste such as shrubs, dead branches, and tree stumps; the range of materials involved is wide.

[0003] In the prior art, such as Chinese patent publication number CN117339699A, a high-speed dual-drive RDF shredder is disclosed, including: a shell, a feed hopper, main shafts, a lower fixed cutter holder, and a transmission assembly. The feed hopper is located on the top of the shell and communicates with the shell. Two main shafts are horizontally symmetrically arranged inside the shell. The transmission assembly is used to drive the main shafts to rotate. Lower fixed cutter holders are arranged below the two main shafts and are connected to the shell by vertically arranged bolts. Represented by this shredder, most existing shredders are stationary equipment. When crushing materials, it is necessary to transfer the materials to a crushing station for centralized crushing processing, which incurs high time and transportation costs.

[0004] Therefore, it is necessary to propose the RDF tracked mobile crushing station to at least partially solve the problems existing in the prior art. Summary of the Invention

[0005] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. The summary section of this invention is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0006] To at least partially solve the above problems, the present invention provides an RDF tracked mobile crushing station, comprising: The system includes an electrical control system, a diesel generator set, a hydraulic station, a twin-shaft bale opener, a belt conveyor, a magnetic separator, and a tracked base. The hydraulic station drives the twin-shaft bale opener, which crushes RDF material. The belt conveyor is located below the twin-shaft bale opener to output the crushed RDF material. The magnetic separator is mounted on the belt conveyor to adsorb and screen out any mixed magnetic materials. The tracked base is located at the bottom of the crushing station to support the components and move along the road surface. The electrical control system and diesel generator set control the operation of each component and provide power to them. An energy recovery unit is installed on the twin-shaft bale opener, and the energy recovery unit, electrical control system, and diesel generator set are all connected to an energy storage device.

[0007] Preferably, the dual-axis pack opener includes: The container is used to hold RDF materials; The feed hopper is located at the top of the housing; Two cutter rollers are rotatably mounted inside the housing, with the roller axis perpendicular to the feeding direction. The roller shaft is connected to the hydraulic station via a transmission mechanism, and a bearing is installed at the connection between the roller shaft and the housing. The frame is located at the bottom of the enclosure.

[0008] Preferably, the transmission mechanism includes: The gearbox is located on the side of the housing. Inside the gearbox, two meshing synchronous gears are rotatably mounted. The shafts of the two synchronous gears are respectively connected to the shafts of the two cutter rollers. The hydraulic motor reducer is mounted on a reducer seat on the side of the housing. The output end of the hydraulic motor reducer is connected to the synchronous gear shaft, and the input end of the hydraulic motor reducer is connected to the hydraulic station.

[0009] Preferably, the cutter roller includes: Spacers, multiple spacers are evenly arranged on the cutter roller along the axial direction; The cutting tools are mounted on the cutter rollers and arranged between adjacent spacers; each cutting tool is equipped with several cutting claws; after multiple cutting tools are arranged, the cutting claws on the cutting tools are arranged in an oblique line on the cutter rollers; the cutting tools on the two cutter rollers are arranged alternately.

[0010] Preferably, a partition assembly is provided on the front and rear sides of the box. The partition assembly includes: a partition fixing plate, a partition and a partition strip. The partition and the partition strip are installed on the inner wall of the box by two upper and lower partition fixing plates and can slide left and right. The partitions and the partition strip are arranged at intervals, and the cutter is located between adjacent partitions. Tightening bolts are provided on the left and right sides of the box. The ends of the tightening bolts are pressed against the partitions on the left and right sides and the extension length is adjustable.

[0011] Preferably, the cutting tool includes: The cutter holder is mounted on the cutter roller, and the cutter holder has eight uniformly formed step surfaces in the circumferential direction. Claw blades, four claw blades are mounted on four spaced-apart step surfaces of the blade holder; Flat cutters, four flat cutters are mounted on the stepped surfaces of four other spaced cutter holders; The blade is installed at the connection between the stepped surfaces of the two blade holders. The blade includes four blades A and four blades B. Blade A is arranged near the claw blade, and blade B is arranged near the flat blade.

[0012] Preferably, the step surface of the knife holder forms an angle B with the blade A, and the claw knife is set in front of the blade A. The step surface of the knife holder where the claw knife is set is set as surface B, and the material is guided to the claw knife along surface B. The back of the claw knife forms an angle A with the blade of the blade A. The back of the claw knife is set as surface A, and the material is guided to the blade of the blade A through surface A. The blade A assists in cutting the material. The step surface of the tool holder forms an angle B with the blade B, which is equal to the angle B between the step surface of the tool holder and the blade A. The flat blade is set in front of the blade B, and the step surface of the tool holder where the flat blade is set is set as surface C. The material is guided to the flat blade along surface C. The front of the flat blade forms an angle D with surface C, and the front of the flat blade is set as surface D. The back of the flat blade forms an angle C with the blade edge of the blade B. The material enters the angle C along surface D, and the blade B assists in cutting the material.

[0013] Preferably, the cutting tool further includes: reinforcing ribs, which are disposed on the left and right sides of the tool holder. Multiple reinforcing ribs are evenly arranged along the circumferential direction on each side and correspond to the position of the step surface of each tool holder. Guide slopes are provided on the reinforcing ribs.

[0014] Preferably, the belt conveyor includes: a feed side plate, a turning side plate, and a discharge side plate connected in sequence. The feed side plate is connected to the body of the belt conveyor and located below the discharge port of the dual-shaft unpacking machine. The two ends of the turning side plate are respectively hinged to the feed side plate and the discharge side plate. A magnetic separator is set above the turning side plate. A hydraulic cylinder one and a hydraulic cylinder two are respectively hinged to both sides of the turning side plate. The hydraulic cylinder one is hinged to the feed side plate through a pin one, and the hydraulic cylinder two is hinged to the discharge side plate through a pin two.

[0015] Preferably, the magnetic separator includes: Two rollers are respectively set on both sides of the turning side plate, and any one of the rollers is connected to the drive motor. A collection box is set below the roller. A belt, which is wound around two rollers; The magnetic box is positioned between the two rollers and inside the belt.

[0016] Compared with the prior art, the present invention has at least the following beneficial effects: The RDF tracked mobile crushing station provided by this invention features a modular design based on RDF material recovery, enabling rapid deployment and relocation. It is located close to the material source, reducing time and material transportation costs. The tracked design adapts to complex terrains such as rugged, muddy, and slippery surfaces. The electrical control system and diesel generator set are dustproof and explosion-proof, and can monitor the operation of the dual-shaft bale opener in real time, improving operational stability and safety. The dual-shaft bale opener is hydraulically driven, and its modular design effectively reduces its size. Combined with current monitoring, it provides double protection for equipment safety. The built-in magnetic separator simultaneously separates magnetic materials during material conveying, enabling magnetic material recovery. An energy recovery component is introduced to recover and utilize residual energy from the crushing process, combining it with the electricity generated by the diesel generator set. This reduces diesel consumption during power generation, achieving energy-saving power generation, lowering the operating costs of the crushing station, and aligning with green environmental protection principles.

[0017] The RDF tracked mobile crushing plant of the present invention, other advantages, objectives and features of the present invention will be apparent in part from the following description, and in part will be understood by those skilled in the art through study and practice of the present invention. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the structure of the RDF tracked mobile crushing station of the present invention; Figure 2 This is a schematic diagram of the dual-axis packing machine in this invention; Figure 3 This is a schematic diagram of the internal structure of the dual-axis pack opener in this invention; Figure 4 This is a schematic diagram of the structure of the cutter roller in this invention; Figure 5 This is a schematic diagram of the partition assembly in the present invention; Figure 6 This is a schematic diagram of the position structure of the tightening bolt in this invention; Figure 7 This is a schematic diagram of the tool structure in this invention; Figure 8 This is a schematic diagram of a partial structure of the cutting tool in this invention. Figure 1 ; Figure 9 This is a schematic diagram of a partial structure of the cutting tool in this invention. Figure 2 ; Figure 10 This is a schematic diagram showing the location and structure of the reinforcing ribs in this invention; Figure 11This is a partial structural diagram of the area between the two cutter rollers in this invention; Figure 12 This is a schematic diagram of the belt conveyor in its deployed state according to the present invention; Figure 13 This is a schematic diagram of the belt conveyor in its retracted state according to the present invention; Figure 14 This is a schematic diagram of the magnetic separator in this invention; Figure 15 This is a schematic diagram of the energy recovery component in this invention; Figure 16 This is a schematic diagram of the auxiliary material feeding component in this invention; Figure 17 For the present invention Figure 16 A magnified schematic diagram of the partial structure at point A in the middle; Figure 18 This is a schematic cross-sectional view of the first state of the rotating shaft in this invention; Figure 19 This is a schematic cross-sectional view of the second state of the rotating shaft in this invention; Figure 20 For the present invention Figure 18 A magnified schematic diagram of the structure at point B in the middle.

[0019] In the diagram: 1. Electrical control system and diesel generator set; 2. Hydraulic station; 3. Twin-shaft packer; 4. Belt conveyor; 5. Magnetic separator; 6. Tracked base; 10. Housing; 11. Feed hopper; 12. Cutter roller; 13. Bearing; 14. Frame; 15. Gearbox; 16. Synchronous gear; 17. Hydraulic motor reducer; 18. Reducer seat; 19. Spacer sleeve; 20. Cutting tool; 21. Partition plate fixing plate; 22. Partition plate; 23. Spacer bar; 24. Cutter holder; 25. Cutter holder stepped surface; 26. Claw cutter; 27. Flat cutter; 28. Blade A; 29. ​​Blade B; 211. Tightening bolt; 30. Reinforcing rib plate; 31. Feed side plate; 32. Turning side plate 33. Discharge side plate; 34. Hydraulic cylinder one; 35. Hydraulic cylinder two; 36. Pin one; 37. Pin two; 38. Roller; 39. Belt; 40. Magnetic box; 51. Rotating shaft; 52. Rotating blade; 53. Generator; 54. Support frame; 55. Rocker arm; 56. Guide frame; 57. Guide groove; 58. Striking block; 59. Guide block; 61. Connecting rod; 62. Elastic adjusting component; 63. Fixed sleeve; 64. Adjusting frame body; 65. First adjusting screw; 66. Second adjusting screw; 67. Inner bushing; 68. First stepped mating surface; 69. Spray nozzle; 71. Outer bushing; 72. Second stepped mating surface; 73. Through groove; 74. Dust filter. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments, so that those skilled in the art can implement it based on the description.

[0021] It should be understood that terms such as “having,” “comprising,” and “including” as used herein do not exclude the presence or addition of one or more other elements or combinations thereof. Example 1:

[0022] like Figure 1 As shown, the present invention provides an RDF tracked mobile crushing station, comprising: The system includes an electrical control system and a diesel generator set 1, a hydraulic station 2, a twin-shaft bale opener 3, a belt conveyor 4, a magnetic separator 5, and a tracked base 6. The hydraulic station 2 drives the twin-shaft bale opener 3 to crush RDF material. The belt conveyor 4 is located below the twin-shaft bale opener 3 to output the crushed RDF material. The magnetic separator 5 is located on the belt conveyor 4 to adsorb and screen out any mixed magnetic materials. The tracked base 6 is located at the bottom of the crushing station to support the components and move along the road surface. The electrical control system and diesel generator set 1 control the operation of each component of the crushing station and provide power to each component. An energy recovery component is installed on the twin-shaft bale opener 3, and the energy recovery component, the electrical control system, and the diesel generator set 1 are all connected to an energy storage device.

[0023] The working principle and beneficial effects of the above technical solution are as follows: The RDF tracked mobile crushing station provided by this invention moves the machine body to the vicinity of the material via the tracked base 6. The crushing station is started by the electronic control system and diesel generator set 1. The hydraulic station 2 drives the crushing components in the double-shaft bale opener 3. RDF material is fed into the double-shaft bale opener 3 for crushing. The crushed material is discharged to the belt conveyor 4 through the lower discharge port. The magnetic separator 5 adsorbs and screens out the magnetic materials mixed in with the material and collects them. The remaining material is discharged outward via the belt conveyor 4.

[0024] The RDF mobile crushing station provided by this invention is based on the modular design of RDF material recycling, which can realize rapid deployment and relocation, close to the material source, reduce time costs and material transportation costs, and the tracked design can adapt to complex terrains such as rugged, muddy and slippery areas (garbage dumps, hillsides, etc.).

[0025] The electrical control system and diesel generator set 1 are designed with dustproof and explosion-proof features in mind, taking into account the operating environment. The electrical control system is equipped with a current detection system to monitor the current of the dual-shaft unloader 3 in real time and has overload protection. The diesel generator set is used to power the equipment and includes the electrical control system, hydraulic station motor, magnetic separator motor, belt conveyor motor, crawler base and other structures.

[0026] The hydraulic station 2 and the dual-axis pack opener 3 are included. The dual-axis pack opener 3 uses a hydraulic drive motor, which has the following advantages: (1) The hydraulic system uses high-pressure fluid to transmit energy. Under the same volume, the hydraulic motor can output a larger torque than the electric motor, and can effectively reduce its own volume in modular design; (2) The hydraulic system is equipped with an overflow valve. When the load suddenly increases and the oil pressure increases to the system's set pressure value, the overflow valve opens and the high-pressure oil flows back to the oil tank, which can protect the system components from damage. RDF materials are complex, including large waste such as old sofas and mattresses, daily waste such as waste plastic bottles, waste rubber, waste tire fragments, woven bags, etc., kitchen waste, and forestry waste such as shrubs, dead branches, tree stumps, etc. The range of materials involved is wide, and the impact of various materials on the equipment is different. The use of hydraulic drive and current monitoring can provide double protection for equipment safety. (3) The hydraulic drive can control the speed of the hydraulic motor by adjusting the flow rate output of the hydraulic pump. The speed can be adjusted according to the type of material at the customer's site to increase efficiency.

[0027] The dual-shaft bale opener 3 is equipped with an energy recovery component, which can be installed at the unloading end of the dual-shaft bale opener 3. Specifically, when the material falls, it impacts the energy recovery component, causing it to drive the generator shaft to rotate. This converts the gravitational potential energy and impact kinetic energy of the falling material into electrical energy, which is then stored in an energy storage device, thus achieving energy recovery. The recovered electrical energy is used in conjunction with the electrical energy generated by the diesel generator set, reducing the amount of diesel fuel used in the power generation process, achieving energy-saving power generation, and reducing the operating costs of the crushing plant. Example 2:

[0028] like Figure 2 , Figure 3 As shown, based on the above embodiment 1, the dual-axis pack opening machine 3 includes: Box 10, which is used to contain RDF material; Feed hopper 11 is located at the top of housing 10; Two cutter rollers 12 are rotatably mounted inside the housing 10, with the axis of the cutter rollers 12 perpendicular to the feeding direction; the rotating shaft of the cutter rollers 12 is connected to the hydraulic station 2 through a transmission mechanism, and a bearing 13 is provided at the connection between the rotating shaft of the cutter rollers 12 and the housing 10. The frame 14 is located at the bottom of the housing 10.

[0029] The working principle and beneficial effects of the above technical solution are as follows: When the dual-shaft pack opener 3 is in use, RDF material is added into the housing 10 through the feed hopper 11. The hydraulic station 2 drives two parallel cutter rollers 12 to rotate relative to each other through the transmission mechanism. The material enters between the two cutter rollers 12, where it is sheared, squeezed, and torn between the blades of the rollers 12, thus being crushed. This effectively processes bales and clumps of RDF material, achieving rapid crushing of RDF material. The bearing 13 provides stable support for the cutter roller shaft, ensuring its rotational accuracy under high speed and heavy load. The frame 14 is located at the bottom of the housing 10, providing support and maintaining a certain height from the crushing station body, facilitating material discharge from the bottom outlet. Example 3:

[0030] like Figure 2 , Figure 3 As shown, based on the above embodiment 1, the transmission mechanism includes: Gearbox 15 is located on the side of housing 10. Two meshing synchronous gears 16 are rotatably mounted inside gearbox 15. The shafts of the two synchronous gears 16 are respectively connected to the shafts of the two cutter rollers 12. The hydraulic motor reducer 17 is mounted on the reducer seat 18 on the side of the housing 10. The output end of the hydraulic motor reducer 17 is connected to the shaft of the synchronous gear 16, and the input end of the hydraulic motor reducer 17 is connected to the hydraulic station 2.

[0031] The working principle and beneficial effects of the above technical solution are as follows: Hydraulic station 2 provides hydraulic power to hydraulic motor reducer 17, driving its output shaft to rotate. This drives the rotation of one of the cutter rollers 12 in gearbox 15. Under the meshing transmission of two synchronous gears 16, the other cutter roller 12 rotates in the opposite direction, thus achieving synchronous reverse rotation of the two cutter rollers 12. This fully shears, squeezes, and tears the material inside the housing 10. Through the above structural design, the synchronous gear 16 transmission ensures that the two cutter rollers 12 rotate at the same speed and in opposite directions, avoiding problems such as material entanglement and cutter collision caused by speed difference, and ensuring stable crushing process. Example 4:

[0032] like Figure 4 As shown, based on the above embodiment 2, the cutter roller 12 includes: Spacer 19, multiple spacers 19 are evenly arranged on the cutter roller 12 along the axial direction; The cutting tool 20 is mounted on the cutting roller 12 and arranged between adjacent spacers 19; the cutting tool 20 is provided with several cutting claws; after multiple cutting tools 20 are arranged, the cutting claws on the cutting tool 20 are arranged in a diagonal line on the cutting roller 12; the cutting tools 20 on the two cutting rollers 12 are arranged alternately.

[0033] The working principle and beneficial effects of the above technical solution are as follows: The cutter roller 12 includes spacers 19 and cutters 20 arranged at intervals. The spacers 19 axially position the cutters 20 and ensure accurate clearance between them. Each cutter 20 has a claw, and the claws of adjacent cutters 20 are at a certain angle. After all cutters 20 are installed and arranged, the claws form an oblique line on the surface of the cutter roller 12. The spirally arranged claws generate axial thrust during rotation, pushing the material axially and preventing fibrous materials from entangled and accumulating on the cutter roller 12. The cutters 20 on the two cutter rollers 12 are staggered, meaning that the cutter on one cutter roller 12 is exactly positioned in the gap between two cutters on the other cutter roller 12, improving the cutting effect on RDF material at various locations and reducing cutting dead angles. Example 5:

[0034] like Figure 5 , Figure 6 As shown, based on the above embodiment 4, partition assemblies are provided on the front and rear sides of the box 10. The partition assembly includes: partition fixing plate 21, partition 22 and partition strip 23. The partition 22 and partition strip 23 are installed on the inner wall of the box 10 by the upper and lower partition fixing plates 21 and can slide left and right. The partition 22 and partition strip 23 are arranged at intervals. The cutter 20 is located between adjacent partition 22. Tightening bolts 211 are provided on the left and right sides of the box 10. The ends of the tightening bolts 211 are pressed against the partitions 22 on the left and right sides and the extension length is adjustable.

[0035] The working principle and beneficial effects of the above technical solution are as follows: The blades 20 are arranged in a staggered arrangement on two opposing axes. Partitions 22 and spacers 23 are provided on both sides of the housing 10 to fill the gap between the blades 20 and the housing 10, preventing large pieces of uncrushed material from getting stuck between the static housing 10 and the dynamic blades 20, and avoiding material falling through the gap without being fully crushed. The partitions 22 and spacers 23 are installed on both sides of the housing 10 by upper and lower partition fixing plates 21 and can move slightly left and right. The housing 10 has tightening bolt holes on both sides, with tightening bolts 211 installed inside. The extension length of the tightening bolts 211 can be adjusted by rotating them, thereby adjusting the position of the partitions 22 and thus the gap between the partitions 22 and the blades 20. This adapts to different material characteristics (such as moisture content and fiber content) and different crushing particle sizes, optimizing the crushing effect. Example 6:

[0036] like Figure 7 As shown, based on the above embodiment 4, the cutting tool 20 includes: The cutter holder 24 is mounted on the cutter roller 12, and the cutter holder 24 has eight uniformly formed cutter holder stepped surfaces 25 in the circumferential direction. Claw blades 26, four claw blades 26 are mounted on four spaced-apart blade holder stepped surfaces 25; Flat cutter 27, four flat cutters 27 are installed on four other spaced cutter holder step surfaces 25; The blade is installed at the connection of the two blade holder stepped surfaces 25. The blade includes four blades A28 and four blades B29. Blade A28 is arranged near the claw blade 26, and blade B29 is arranged near the flat blade 27.

[0037] The step surface 25 of the knife holder forms an angle B with the blade A28. The claw blade 26 is set in front of the blade A28. The step surface 25 of the knife holder where the claw blade 26 is set is set as surface B. The material is guided to the claw blade 26 along surface B. The back of the claw blade 26 forms an angle A with the blade edge of the blade A28. The back of the claw blade 26 is set as surface A. The material is guided to the blade edge of the blade A28 through surface A. The blade A28 assists in cutting the material. The step surface 25 of the tool holder forms an angle B with the blade B29, which is equal to the angle B between the step surface 25 of the tool holder and the blade A28. The flat blade 27 is set in front of the blade B29. The step surface 25 of the tool holder where the flat blade 27 is set is set as surface C. The material is guided to the flat blade 27 along surface C. The front of the flat blade 27 forms an angle D with surface C. The front of the flat blade 27 is set as surface D. The back of the flat blade 27 forms an angle C with the blade of the blade B29. The material enters the angle C along surface D. The blade B29 assists in cutting the material.

[0038] The working principle and beneficial effects of the above technical solution are as follows: The cutting claw of the blade 20 is composed of claw blades 26, flat blades 27, and diagonal blades. Claw blades 26 and flat blades 27 are the main cutting tools, with different cutting angles and spaced apart. During the crushing process, the two cutter rollers 12 rotate synchronously. When the claw blades 26 of the blades 20 on one cutter roller 12 engage the material, the flat blades 27 and corresponding diagonal blades B29 on the adjacent blades 20 on the other cutter roller 12 cut this part of the material. The diagonal blade is located behind the main cutting tool and serves as an auxiliary tool to assist in cutting the material that has not been completely crushed by the claw blades 26 and flat blades 27. By setting up a combined cutting claw, multiple cutting claws work together to subject the material to different forms of force at different positions, reducing the load and wear of the main cutting tool, resulting in more thorough material crushing and more uniform particle size after crushing. Example 7:

[0039] like Figure 10 , Figure 11 As shown, based on the above embodiment 6, the cutting tool 20 further includes: Reinforcing ribs 30 are provided on the left and right sides of the tool holder 24. Multiple reinforcing ribs 30 are evenly arranged along the circumference on each side and correspond to the positions of the step surfaces 25 of each tool holder. Guide slopes are provided on the reinforcing ribs 30.

[0040] The working principle and beneficial effects of the above technical solution are as follows: The reinforcing rib 30 fills the gap between the cutter 20 and guides the material back to the cutting position via the guide slope, preventing the material from falling directly into the discharge hopper along the position of the reinforcing rib 30. It also prevents the material from accumulating and tangling on both sides of the cutter holder 24. Simultaneously, the reinforcing rib 30 increases the overall rigidity of the cutter holder 24, reducing the deformation caused by compression and impact in the middle of the cutter holder 24 during crushing, thus extending the service life of the cutter holder 24. Example 8:

[0041] like Figure 12 , Figure 13 As shown, based on the above embodiment 1, the belt conveyor 4 includes: The feed side plate 31, the turning side plate 32, and the discharge side plate 33 are connected in sequence. The feed side plate 31 is connected to the body of the belt conveyor 4 and is located below the discharge port of the double-shaft unpacking machine 3. The two ends of the turning side plate 32 are respectively hinged to the feed side plate 31 and the discharge side plate 33. The magnetic separator 5 is set above the turning side plate 32. The two sides of the turning side plate 32 are respectively hinged to the first hydraulic cylinder 34 and the second hydraulic cylinder 35. The first hydraulic cylinder 34 is hinged to the feed side plate 31 through the first pin 36, and the second hydraulic cylinder 35 is hinged to the discharge side plate 33 through the second pin 37.

[0042] The working principle and beneficial effects of the above technical solution are as follows: The belt conveyor 4 is divided into three sections. The turning side plate 32 and the feed side plate 31 are connected to the hydraulic cylinder 34 by pin 36, and the turning side plate 32 and the discharge side plate 33 are connected to the hydraulic cylinder 35 by pin 37. In operation, hydraulic cylinders 34 and 35 retract, increasing the angle between the turning side plate 32 and the feed side plate 31, and also increasing the angle between the turning side plate 32 and the discharge side plate 33. At this time, the turning side plate 32 and the discharge side plate 33 are in an extended state. When transferring to the crushing plant, hydraulic cylinders 34 and 35 extend, decreasing the angle between the turning side plate 32 and the feed side plate 31, and also decreasing the angle between the turning side plate 32 and the discharge side plate 33. At this time, the turning side plate 32 and the discharge side plate 33 of the belt conveyor 4 retract. Through this structural design, the belt conveyor 4 can be extended or retracted according to the working state of the crusher, facilitating transportation and improving operational convenience. Example 9:

[0043] like Figure 14 As shown, based on the above embodiment 8, the magnetic separator 5 includes: Roller 38, two rollers 38 are respectively set on both sides of the turning side plate 32, and any one of the rollers 38 is connected to the drive motor. A collection box is set below the roller 38. Belt 39 is wrapped around two rollers 38; The magnetic box 40 is located between the two rollers 38 and inside the belt 39.

[0044] The working principle and beneficial effects of the above technical solution are as follows: Belt conveyor 4 transports materials. When materials containing iron impurities pass below magnetic separator 5, the iron materials are adsorbed onto the surface of belt 39 under the action of magnetic box 40. As belt 39 moves, when the adsorbed material is transferred to roller 38, the magnetic force disappears, and the iron materials fall into the collection box under gravity. Through the above structural design, iron materials are sorted during the material conveying process without stopping the machine, ensuring the continuous and efficient operation of the crushing plant conveyor line. Example 10:

[0045] like Figure 15 As shown, based on the above embodiment 1, the energy recovery component includes: Rotary shaft 51 is rotatably connected to the conical discharge port at the bottom of the dual-shaft packaging machine 3; Rotating blades 52, multiple rotating blades 52 are evenly arranged on the rotating shaft 51; Generator 53 is installed on one side of the outer wall of the dual-shaft unloader 3. The power input end of generator 53 is connected to shaft 51, and generator 53 is electrically connected to energy storage equipment.

[0046] The working principle and beneficial effects of the above technical solution are as follows: During the material discharge process after crushing in the dual-shaft unloader 3, the falling material pushes the rotating blades 52 to rotate, which in turn drives the rotating shaft 51 to rotate. The generator 53 converts the rotation of the rotating shaft 51 into electrical energy and transmits it to the energy storage device to achieve energy recovery. By utilizing the gravitational potential energy and kinetic energy of the material, it achieves the effect of energy-saving power generation and reduces the operating cost of the crushing station. At the same time, under the separation of the rotating blades 52, the crushed material is discharged in segments and evenly, reducing the impact on the belt conveyor 4 during discharge and reducing material accumulation and spillage during the conveying process. Example 11:

[0047] like Figure 16 , Figure 17 As shown, based on the above embodiment 10, the energy recovery component further includes an auxiliary material feeding component, which includes: Support frame 54 is installed on the other side of the outer wall of the dual-shaft bag opener 3, and the other end of the rotating shaft 51 is connected to the bottom of the support frame 54 through a bearing; Joystick 55 is connected to pivot 51; Guide frame 56 is connected to the top of support frame 54. The center of the two guide frames 56 forms a vertical slide. Guide groove 57 is vertically provided on the guide frame 56. A striking block 58 is slidably connected to a vertical slide rail, and guide blocks 59 are provided on both sides of the striking block 58 and are slidably connected to the guide groove 57. Link 61, one end of which is hinged to guide block 59; The elastic adjusting member 62 is arc-shaped and its two ends are respectively hinged to the other ends of the two connecting rods 61; the elastic adjusting member 62 has a multi-layer spring sheet structure, and the length of the spring sheet gradually decreases from bottom to top; A fixed sleeve 63 is connected to the center of the elastic adjusting member 62, and an adjusting frame assembly is hinged between the fixed sleeve 63 and the rocker arm 55.

[0048] The working principle and beneficial effects of the above technical solution are as follows: During the material discharge process after crushing in the dual-shaft bag opener 3, the material slides down the inclined surface of the conical discharge port, but some material still adheres to the inclined surface, causing wall-hanging. An auxiliary discharge component is integrated into the energy recovery component. While the rotating shaft 51 rotates, it drives the rocker arm 55 to rotate, improving the rotation flexibility of the rotating shaft 51 through the bearing. The rocker arm 55 drives the elastic adjustment component 62 to move up and down reciprocally through the adjustment frame component. The elastic adjustment component 62 drives the two connecting rods 61 connected to it to rotate, pushing the guide block 59 to move up and down reciprocally, thereby causing the striking block 58 to move up and down reciprocally along the vertical slide. When the striking block 58 contacts the outer wall of the dual-shaft bag opener 3, it generates a certain impact force and transmits it inward, shaking off the material adhering to the conical discharge port and preventing blockage at the discharge port.

[0049] The elastic adjustment element 62 is equipped with a multi-layer spring sheet structure, which ensures support while also providing a certain degree of elasticity. The elastic adjustment element 62 can push the striking block 58 up and down via the connecting rod 61. The impact received by the striking block 58 during striking is transmitted to the elastic adjustment element 62 and dissipated. At the same time, as the rotating shaft 51 drives the rocker arm 55 to rotate downward, the adjustment frame assembly pulls the elastic adjustment element 62 to undergo a small deformation until the rocker arm 55 moves to the lowest dead point position. At this point, under the elastic force of the elastic adjustment element 62, it can better overcome the dead point position, ensuring the flexible rotation of the rotating shaft 51.

[0050] Through the above structural design, the material's gravitational potential energy and kinetic energy are utilized to reciprocate and strike the side walls of the dual-shaft unpacking machine 3 while generating and storing energy. This shakes off the material adhering to the conical discharge port, effectively preventing blockages and reducing the number of shutdowns for cleaning due to blockages. This simultaneous generation and energy storage reduces energy loss during power transmission and simplifies control compared to using a vibratory motor. A multi-layered, gradually changing length spring structure protects the structure connected to the striking block 58 while simultaneously storing elastic potential energy through small-amplitude deformation. This assists the rocker arm in passing over the dead center position, allowing the rotating shaft 51 to rotate flexibly and ensuring effective energy recovery. Example 12:

[0051] like Figure 17 As shown, based on the above embodiment 11, the adjustment frame assembly includes: The adjusting frame body 64 has threaded holes at its upper and lower ends. The first adjusting screw 65 is screwed into the threaded hole at the bottom of the adjusting frame body 64 and hinged to the rocker arm 55. The second adjusting screw 66 is screwed into the threaded hole at the top of the adjusting frame body 64 and hinged to the fixing sleeve 63.

[0052] The working principle and beneficial effects of the above technical solution are as follows: The effective length of the adjusting frame body 64 is changed by rotating the first adjusting screw 65 and the second adjusting screw 66 to alter their extension length relative to the adjusting frame body 64. Different effective lengths result in different vertical movement strokes of the fixed sleeve 63 driven by the rocker arm 55 when it rotates, thereby controlling the vertical movement amplitude of the striking block 58. This allows it to generate different striking forces on the side wall of the dual-shaft packaging machine 3, adapting to the adhesion properties of different types of materials, while simultaneously controlling the wear degree of the striking block 58 and the machine body. Example 13:

[0053] like Figures 18-20 As shown, based on the above embodiment 10, the rotating shaft 51 includes: The inner bushing 67 is rotatably connected to the side wall of the dual-shaft bag opener 3. The inner bushing 67 is hollow and one end is connected to the air supply equipment. Multiple rotating blades 52 are evenly connected to the inner bushing 67. Multiple first-step mating surfaces 68 and spray nozzles 69 are evenly arranged on the inner bushing 67. The first-step mating surfaces 68 and spray nozzles 69 are located on both sides of the rotating blades 52, respectively. The outer bushing 71 is rotatably connected to the side wall of the dual-shaft unpacking machine 3, and is concentrically fitted onto the inner bushing 67. The inner wall of the outer bushing 71 is evenly provided with multiple second-step mating surfaces 72 that are adapted to the first-step mating surface 68. The outer bushing 71 is provided with a through groove 73 for the rotating blade 52 to pass through, and the groove opening size of the through groove 73 is larger than the thickness of the rotating blade 52. Foldable dust-proof nets 74 are connected between the two sides of the rotating blade 52 and the groove opening of the through groove 73. The weight of the outer bushing 71 is greater than the weight of the inner bushing 67.

[0054] The working principle and beneficial effects of the above technical solution are as follows: During the process of material falling and driving the rotating blade 52 to rotate, the material on the receiving side of the rotating blade 52 becomes loose during rotation due to frequent collisions between materials and the effect of gravity. It falls when the rotating blade 52 rotates to the lower part. During the rotation of the rotating blade 52, due to the effect of rotational acceleration, some material will be squeezed and attached to the non-receiving side of the rotating blade 52. This part of the material is squeezed and attached as the rotating blade 52 rotates frequently and is difficult to fall. This results in uneven mass distribution at various positions of the rotating blade 52, which affects the rotation of the shaft 51 when the material falls and prevents it from rotating flexibly.

[0055] The rotating shaft 51 is configured with a double-layer structure. When the material falls, it drives the rotating blade 52 to rotate, causing the front side of the rotating blade 52 to press against the opening of the through groove 73. The first stepped mating surface 68 and the second stepped mating surface 72 separate, sealing the opening of the through groove 73. At this time, the outer bushing 71 rotates synchronously with the inner bushing 67, and the inner bushing 67 is connected to the generator 53 to achieve energy recovery. When the material stops falling, the inner bushing 67 stops moving first. Since the weight of the outer bushing 71 is greater than the weight of the inner bushing 67, the outer bushing 71 continues to rotate under inertia until the first stepped mating surface 68 and the second stepped mating surface 72 contact, and the opening of the through groove 73 is partially exposed. Air is supplied to the inner bushing 67 through the air supply device, and blown off the material adhering to it through the nozzle 69 onto the non-material-bearing side of the rotating blade 52. The dust screen 74 can prevent material from entering the bushing and affecting the transmission.

[0056] Through the above structural design, the rotating shaft 51 is set as an inner and outer double-layer structure. When the rotating shaft 51 rotates for energy recovery, the through groove 73 is blocked and the inner and outer layers rotate simultaneously. After the material feeding stops, the inertia difference of the inner and outer double-layer structure is used to open the through groove 73 and spray the non-material receiving side of the rotating blade 52 to remove the attached substances on the back of the rotating blade 52, so that the rotating blade 52 at each position is clean and the weight is evenly distributed. This ensures that the rotating shaft 51 rotates flexibly during the material feeding process, avoids jamming, makes the energy recovery process reliable, and prevents blockage at the discharge port.

[0057] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. Other modifications can be easily made by those skilled in the art. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. An RDF tracked mobile crushing station, characterized in that, include: The system includes an electrical control system and a diesel generator set (1), a hydraulic station (2), a dual-shaft packer (3), a belt conveyor (4), a magnetic separator (5), and a tracked base (6). The hydraulic station (2) is used to drive the dual-shaft packer (3) to run. The dual-shaft packer (3) is used to crush RDF materials. The belt conveyor (4) is located below the dual-shaft packer (3) and is used to output the crushed RDF materials. The magnetic separator (5) is located on the belt conveyor (4) and is used to adsorb and screen out the mixed magnetic materials. The tracked base (6) is located at the bottom of the crushing station and is used to support the components and move along the road. The electrical control system and diesel generator set (1) are used to control the operation of each component of the crushing station and provide energy for the operation of each component. An energy recovery component is installed on the dual-shaft packer (3), and the energy recovery component and the electrical control system and diesel generator set (1) are both connected to the energy storage equipment. The dual-shaft pack opener (3) includes a cutter roller (12), and the cutter roller (12) includes a cutter (20); The cutting tool (20) includes: The cutter holder (24) is mounted on the cutter roller (12), and the cutter holder (24) has eight uniformly formed cutter holder step surfaces (25) in the circumferential direction. Claw blades (26), four claw blades (26) are mounted on four spaced blade holder step surfaces (25); Flat cutter (27), four flat cutters (27) are installed on four other spaced cutter holder step surfaces (25); The blade is installed at the connection of the two blade holder step surfaces (25). The blade includes four blades A (28) and four blades B (29). Blade A (28) is arranged near the claw blade (26), and blade B (29) is arranged near the flat blade (27). The step surface (25) of the knife holder forms an angle B with the blade A (28). The claw blade (26) is set in front of the blade A (28). The step surface (25) of the knife holder where the claw blade (26) is set is set as surface B. The material is guided to the claw blade (26) along surface B. The back of the claw blade (26) forms an angle A with the blade of the blade A (28). The back of the claw blade (26) is set as surface A. The material is guided to the blade of the blade A (28) through surface A. The blade A (28) assists in cutting the material. The step surface (25) of the knife holder forms an angle B with the blade B (29), which is equal to the angle B between the step surface (25) of the knife holder and the blade A (28). The flat blade (27) is set in front of the blade B (29). The step surface (25) of the knife holder where the flat blade (27) is set is set as surface C. The material is guided to the flat blade (27) along surface C. The front of the flat blade (27) forms an angle D with surface C. The front of the flat blade (27) is set as surface D. The back of the flat blade (27) forms an angle C with the blade of the blade B (29). The material enters the angle C along surface D. The blade B (29) assists in cutting the material.

2. The RDF tracked mobile crushing station according to claim 1, characterized in that, The dual-axis pack opener (3) also includes: Box (10) is used to hold RDF material; two cutter rollers (12) are rotatably set inside the box (10), and the axis of the cutter rollers (12) is perpendicular to the feeding direction; the rotating shaft of the cutter rollers (12) is connected to the hydraulic station (2) through the transmission mechanism, and a bearing (13) is provided at the connection between the rotating shaft of the cutter rollers (12) and the box (10). Feed hopper (11) is located at the top of box body (10); The frame (14) is located at the bottom of the housing (10).

3. The RDF tracked mobile crushing station according to claim 2, characterized in that, The transmission mechanism includes: Gearbox (15) is located on the side of housing (10). Two meshing synchronous gears (16) are rotatably installed inside gearbox (15). The shafts of the two synchronous gears (16) are respectively connected to the shafts of the two cutter rollers (12). The hydraulic motor reducer (17) is installed on the reducer seat (18) on the side of the housing (10). The output end of the hydraulic motor reducer (17) is connected to the shaft of the synchronous gear (16), and the input end of the hydraulic motor reducer (17) is connected to the hydraulic station (2).

4. The RDF tracked mobile crushing station according to claim 2, characterized in that, The cutter roller (12) also includes: Spacers (19), multiple spacers (19) are evenly arranged on the cutter roller (12) along the axial direction; cutters (20) are installed on the cutter roller (12) and arranged between adjacent spacers (19); cutters (20) are provided with several cutter claws; after multiple cutters (20) are arranged, the cutter claws on the cutters (20) are arranged in an oblique line on the cutter roller (12); the cutters (20) on the two cutter rollers (12) are arranged alternately.

5. The RDF tracked mobile crushing station according to claim 4, characterized in that, The front and rear sides of the box (10) are provided with partition assemblies. The partition assembly includes: partition fixing plate (21), partition (22) and partition strip (23). The partition (22) and partition strip (23) are installed on the inner wall of the box (10) by the upper and lower partition fixing plates (21) and can slide left and right. The partition (22) and partition strip (23) are arranged at intervals. The cutter (20) is located between adjacent partitions (22). The left and right sides of the box (10) are provided with tightening bolts (211). The ends of the tightening bolts (211) are pressed on the partitions (22) on the left and right sides and the extension length is adjustable.

6. The RDF tracked mobile crushing station according to claim 1, characterized in that, The cutting tool (20) also includes: Reinforcing ribs (30) are provided on the left and right sides of the tool holder (24). Multiple reinforcing ribs (30) on each side are evenly arranged along the circumference and correspond to the position of each tool holder step surface (25). A guide slope is provided on the reinforcing ribs (30).

7. The RDF tracked mobile crushing station according to claim 1, characterized in that, The belt conveyor (4) includes: The feed side plate (31), the turning side plate (32) and the discharge side plate (33) are connected in sequence. The feed side plate (31) is connected to the body of the belt conveyor (4) and located below the discharge port of the double-shaft unpacking machine (3). The two ends of the turning side plate (32) are respectively hinged to the feed side plate (31) and the discharge side plate (33). The magnetic separator (5) is set above the turning side plate (32). The two sides of the turning side plate (32) are respectively hinged to the first oil cylinder (34) and the second oil cylinder (35). The first oil cylinder (34) is hinged to the feed side plate (31) through the first pin (36), and the second oil cylinder (35) is hinged to the discharge side plate (33) through the second pin (37).

8. The RDF tracked mobile crushing station according to claim 7, characterized in that, The magnetic separator (5) includes: Roller (38), two rollers (38) are respectively set on both sides of the turning side plate (32), and any one of the rollers (38) is connected to the drive motor. A collection box is set below the roller (38); A belt (39) is wound around two rollers (38); A magnetic box (40) is positioned between two rollers (38) and inside the belt (39).

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