Automatic waste sorting and recycling machine for road construction

Abstract

This invention relates to the field of solid waste management technology, specifically disclosing an automatic sorting and recycling machine for road construction waste. The machine includes a collision mechanism comprising a collision component and a driving component. Solid waste containing magnetically adsorbable metals and concrete waste is crushed by the crushing mechanism and falls into the collision component. The driving component then drives the collision component to move, causing it to swing the solid waste and collide with its internal structure. In this automatic sorting and recycling machine for road construction waste, the crushed solid waste falls into the collision component, which is then driven to move. The collision component swings the solid waste, causing it to collide with its internal structure, thus separating concrete waste from magnetically adsorbable metals and enhancing the sorting and separation effect.

Description

Technical Field

[0001] This invention relates to the field of solid waste management technology, specifically to an automatic sorting and recycling machine for road construction waste. Background Technology

[0002] During the construction, reconstruction, expansion, and maintenance of road projects, a large amount of solid construction waste is continuously generated. This mainly includes waste asphalt mixtures, waste concrete blocks, gravel, slag, waste pipes, metal debris, and other mixed construction waste. Such road construction waste belongs to engineering solid waste and is one of the key targets for treatment in the field of solid waste management.

[0003] Chinese patent application CN121402412A discloses an automatic sorting and recycling machine for road construction waste, including a fixedly installed feeding and screening assembly. A multi-stage crushing structure is fixedly connected to the lower surface of the feeding and screening assembly. The multi-stage crushing structure includes a crushing support assembly and a rotatably mounted impact crushing assembly. The crushing support assembly is fixedly connected to the feeding and screening assembly, and the impact crushing assembly is rotatably mounted inside the crushing support assembly. A sorting assembly is fixedly connected to the lower surface of the crushing support assembly. The feeding and screening assembly controls the entry of waste into the equipment, performs preliminary screening, and continuously conveys the waste. The multi-stage crushing structure performs different crushing processes on the pre-screened waste. The sorting assembly sorts the crushed waste, distinguishing different substances.

[0004] However, the above-mentioned patent application documents still have the following shortcomings: In the process of crushing solid waste with magnetic adsorption metal and concrete waste and sorting and separating magnetic adsorption metal and concrete substrate, it is difficult to achieve full dissociation of magnetic adsorption metal and concrete by relying solely on the crushing process. Residual concrete material will still adhere to the surface of magnetic adsorption metal, resulting in poor sorting and separation effect. Summary of the Invention

[0005] This invention provides an automatic sorting and recycling machine for road construction waste, aiming to solve the problem in related technologies that after crushing operations, residual concrete material still adheres to the magnetically adsorbable metal surface, resulting in poor sorting and separation effects.

[0006] The automatic sorting and recycling machine for road construction waste of the present invention includes a processing box, a crushing mechanism and a magnetic screening mechanism. The crushing mechanism and the magnetic screening mechanism are arranged vertically and are both installed in the processing box. It also includes a collision mechanism, which is installed in the processing box and located between the crushing mechanism and the magnetic screening mechanism. The collision mechanism includes a collision component and a driving component. Solid waste with magnetic properties that can attract metal and concrete waste falls into the collision component after being crushed by the crushing mechanism. The driving component drives the collision component to run, causing the collision component to swing the solid waste and cause the solid waste to collide with the internal structure of the collision component.

[0007] Beneficial effects: After solid waste with magnetic adsorption capacity for metal and concrete waste is put into the processing box, it is first crushed by the crushing mechanism. The crushed solid waste falls into the collision component, which is then driven by the drive component to run. The collision component swings the solid waste and causes it to collide with the internal structure of the collision component, which promotes the separation of concrete waste and magnetic adsorption capacity for metal, thus enhancing the sorting and separation effect of concrete waste and magnetic adsorption capacity for metal. Finally, the magnetic screening mechanism sorts and separates the concrete waste and magnetic adsorption capacity for metal.

[0008] Preferably, the collision component includes an outer cylinder, an inner cylinder, a rotating rod, a pushing part, a first crushing tooth, and a second crushing tooth. The inner cylinder is located inside the outer cylinder. The rotating rod is rotatably connected to the inner cylinder. The pushing part is fixedly connected to the rotating rod. Multiple discharge ports are provided on the outer side of the inner cylinder. The rotating rod can rotate and drive the pushing part to rotate, so that the pushing part throws the solid waste in the inner cylinder from the discharge ports to the inner wall of the outer cylinder. Multiple first crushing teeth and multiple second crushing teeth are provided. Multiple first crushing teeth are fixedly connected to the inner wall of the outer cylinder, and multiple second crushing teeth are fixedly connected to the outer wall of the inner cylinder.

[0009] Its effect is as follows: after the crushed solid waste falls into the inner cylinder, the rotating rod drives the pushing part to rotate, so that the pushing part throws the solid waste in the inner cylinder from the discharge port to the inner wall of the outer cylinder. The thrown solid waste collides with crushing tooth one and crushing tooth two, thereby promoting the separation of concrete waste from magnetically adsorbable metal.

[0010] Preferably, the drive component is connected between the crushing mechanism and the rotating rod so that the rotating rod can be driven to rotate when the crushing mechanism is running.

[0011] Its effect is that the drive component provides transmission for the rotation of the rotating rod, so that no additional drive equipment is needed when the collision component is running, thus reducing operating costs and power consumption.

[0012] Preferably, the collision mechanism further includes a material guiding channel, which is fixedly connected to the box body and is used to guide and transport the crushed solid waste into the inner cylinder.

[0013] Preferably, it also includes a direction adjustment mechanism, which is installed on the inner cylinder and is used to adjust the direction of the solid waste thrown out of the inner cylinder.

[0014] Preferably, the direction adjustment mechanism includes a rotatable shield that is rotatably connected to the inner cylinder. The shield has two notches that can communicate with two non-adjacent discharge ports.

[0015] Its effect is that when the pushing part pushes the solid waste in the inner cylinder, it can be thrown from two non-adjacent discharge ports through two notches to the inner wall of the outer cylinder, so as to form two segments of solid waste. There is a certain distance between the two segments of solid waste, which avoids the solid waste in the two segments from colliding between the outer cylinder and the inner cylinder, thereby enhancing the collision effect between the solid waste and the internal structure of the collision mechanism.

[0016] Preferably, the direction adjustment mechanism further includes a transmission component, which is connected between the shield and the drive component so that the drive component can drive the shield to rotate through the transmission component when it is running.

[0017] Its effect is that the transmission component can drive the shield to rotate when the drive component is running, thereby providing power for the rotation of the shield.

[0018] Preferably, it also includes a dust screening mechanism, which is fixedly connected to the bottom of the processing box and is used to convey the dust generated during crushing, collision and magnetic separation operations.

[0019] Preferably, the dust screening mechanism includes a windshield, a wind generator, and a conveying pipe. The windshield is fixedly connected to the bottom of the processing box, the wind generator is fixedly connected inside the windshield, and the wind generator can generate wind to draw air from inside the box. The conveying pipe is fixedly connected to the windshield.

[0020] The beneficial effects of this invention are: 1. After the crushed solid waste falls into the inner cylinder, the rotating rod drives the pushing part to rotate, so that the pushing part throws the solid waste in the inner cylinder from the discharge port to the inner wall of the outer cylinder. The thrown solid waste collides with crushing tooth one and crushing tooth two, thereby promoting the separation of concrete waste from magnetically adsorbable metals and enhancing the sorting and separation effect of concrete waste and magnetically adsorbable metals.

[0021] 2. By using the shielding cover, when the pushing part pushes the solid waste in the inner cylinder, it can be thrown from two non-adjacent discharge ports through two notches to the inner wall of the outer cylinder, so as to form two segments of solid waste. There is a certain distance between the two segments of solid waste, which avoids the solid waste in the two segments from colliding between the outer cylinder and the inner cylinder, thereby enhancing the collision effect between the solid waste and the internal structure of the collision mechanism. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0023] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present invention.

[0024] Figure 3 This is a front view cross-sectional structural schematic diagram of the magnetic separator of the present invention.

[0025] Figure 4 This is a three-dimensional structural diagram of the crushing mechanism, collision mechanism, and magnetic screening mechanism of the present invention.

[0026] Figure 5 This is a side view cross-sectional structural schematic diagram of the collision mechanism, direction adjustment mechanism, magnetic separator, and dust screening mechanism of the present invention.

[0027] Figure 6 This is a side view cross-sectional structural schematic diagram of the collision mechanism and the direction adjustment mechanism of the present invention.

[0028] Figure 7 This is an exploded view of the collision mechanism and shield of the present invention.

[0029] Figure label: 1. Processing box; 11. Box body; 111. Discharge port one; 112. Discharge port two; 12. Hopper; 13. Guide component one; 14. Guide component two; 15. Guide component three; 151. Long plate; 152. Short plate; 16. Guide plate one; 17. Guide plate two; 18. Support leg; 2. Crushing mechanism; 21. Crushing component; 211. Crushing roller one; 212. Crushing roller two; 22. Gear set; 23. Drive source; 3. Collision mechanism; 31. Guide channel; 32. Collision component; 321. Support frame; 322. Outer cylinder; 323. Inner cylinder; 324. Rotating rod; 325. Pushing part; 326. Crushing tooth one; 327. Crushing 328. Gear Breaker 2; 33. Discharge Port; 33. Drive Component; 331. Mounting Box; 332. Mounting Part; 333. Rotating Shaft; 334. Transmission Structure; 335. Bevel Gear 1; 336. Bevel Gear 2; 4. Direction Adjustment Mechanism; 41. Shielding Cover; 411. Notch; 42. Transmission Component; 421. Fixing Sleeve; 422. Fixing Seat; 423. Bevel Gear 3; 424. Bevel Gear 4; 5. Magnetic Screening Mechanism; 51. Magnetic Separator; 511. Rotating Roller; 512. Magnetic Strip; 513. Wrapping Sleeve; 52. Scraper; 53. Linkage Structure; 6. Dust Screening Mechanism; 61. Windshield; 62. Wind Generator; 63. Conveying Pipe. Detailed Implementation

[0030] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0031] like Figures 1 to 7 As shown, the automatic sorting and recycling machine for road construction waste of the present invention includes a processing box 1, a crushing mechanism 2, a collision mechanism 3, a direction adjustment mechanism 4, a magnetic screening mechanism 5, and a dust screening mechanism 6. The crushing mechanism 2, the collision mechanism 3, and the magnetic screening mechanism 5 are arranged sequentially from top to bottom and are all fixedly installed inside the processing box 1. The crushing mechanism 2 is used to crush the solid waste entering the processing box 1, thereby initially separating concrete waste containing magnetically adsorbable metals. The collision mechanism 3 is used to swing the crushed solid waste, causing it to collide with the internal structure of the collision mechanism 3, thereby promoting the separation of concrete waste from magnetically adsorbable metals and enhancing the sorting effect between concrete waste and magnetically adsorbable metals. The magnetically adsorbable screening mechanism 5 is used to separate the magnetically adsorbable metals in the solid waste, so that the magnetically adsorbable metals and concrete waste can be transported separately, thereby completing the sorting of magnetically adsorbable metals and concrete waste. The dust screening mechanism 6 is used to transport the dust generated during the crushing, collision, and magnetic separation operations, so as to facilitate dust collection and avoid pollution to the surrounding environment. The direction adjustment mechanism 4 is fixedly installed on the collision mechanism 3 to change the direction in which solid waste is thrown out, reduce the collision between solid waste, and enhance the collision effect between solid waste and the internal structure of the collision mechanism 3, thereby further enhancing the sorting and separation effect of concrete waste and magnetically adsorbable metals.

[0032] Solid waste is fed into processing bin 1, where it is first crushed by crushing mechanism 2 to form solid waste. The formed solid waste falls into collision mechanism 3, where it is swung to collide with the internal structure of the mechanism. Simultaneously, direction adjustment mechanism 4 changes the direction of the thrown solid waste to reduce collisions. After collision, magnetically adsorbable metals and concrete waste fall onto magnetically adsorbed screening mechanism 5, which separates the magnetically adsorbable metals from the concrete waste for external transport. Dust screening mechanism 6 is activated to transport the dust generated during crushing and collision operations to an external dust collection device (existing technology, such as dust bags and dust boxes, not shown in the diagram, and will not be described further).

[0033] like Figure 1 and Figure 2As shown, the processing box 1 includes a box body 11, a hopper 12, guide component 13, guide component 2 14, guide component 3 15, guide plate 16, guide plate 2 17, and support legs 18. The box body 11 provides a limiting space for the processing of solid waste. The hopper 12 is fixedly connected to the top of the box body 11, allowing solid waste to enter the box body 11 through the hopper 12. The hopper 12 is funnel-shaped to increase the conveying space inside the hopper 12, facilitating the conveying of solid waste into the box body 11. Guide components 13, 2 14, and 3 15 are arranged sequentially from top to bottom and are all fixedly connected inside the box body 11. Each guide component 13, 2 14, and 3 15 consists of two connecting plates arranged in a V-shape.

[0034] Guide component 13 is located above the crushing mechanism 2 and is used to convey solid waste onto the crushing mechanism 2 for crushing. Guide component 2 14 is positioned between the crushing mechanism 2 and the collision mechanism 3 and is used to convey the crushed solid waste into the collision mechanism 3. Guide component 3 15 is positioned between the collision mechanism 3 and the magnetic screening mechanism 5 and is used to convey the solid waste after the collision operation onto the magnetic screening mechanism 5.

[0035] The lower right and lower left sides of the housing 11 are respectively provided with discharge port 111 and discharge port 112. Guide plates 16 and 17 are located below the magnetic screening mechanism 5 and are fixedly connected inside the housing 11. Guide plates 16 and 17 are respectively configured to cooperate with discharge ports 111 and 112 to separate and transport concrete waste and magnetically adsorbable metals after magnetic separation by the magnetic screening mechanism 5. Concrete waste is discharged outwards through discharge port 111 under the guidance of guide plate 16, while magnetically adsorbable metals are discharged outwards through discharge port 112 under the guidance of guide plate 17. Support legs 18 are fixedly connected to the bottom of the housing 11 to support the housing 11.

[0036] like Figure 1 , Figure 2 and Figure 4As shown, the crushing mechanism 2 includes a crushing component 21, a gear set 22, and a drive source 23. The crushing component 21 includes a first crushing roller 211 and a second crushing roller 212, both rotatably connected to the upper inner side of the housing 11. The gear set 22 includes two meshing gears, fixedly connected to the rear ends of the first crushing roller 211 and the second crushing roller 212, respectively. The drive source 23 is fixedly connected to the front side of the housing 11 and is a servo motor. The output shaft of the drive source 23 is fixedly connected to the second crushing roller 212. When the drive source 23 is activated to drive the second crushing roller 212 to rotate, it drives the two gears in the gear set 22 to mesh, thereby driving the first crushing roller 211 to rotate in the opposite direction. The solid waste is crushed through the reverse rotation of the first crushing roller 211 and the second crushing roller 212.

[0037] like Figure 1 , Figure 2 , Figures 4 to 7 As shown, the collision mechanism 3 includes a guide channel 31, a collision member 32, and a drive member 33. The guide channel 31 is fixedly connected inside the housing 11 and is located below the guide member 14. The collision member 32 is installed inside the housing 11 and is located below the guide channel 31. The drive member 33 is installed on the housing 11 and the collision member 32 and is used to drive the collision member 32 to run.

[0038] After the crushing operation, the solid waste is transported into the material guide channel 31 under the guidance of the guide member 2 14. The solid waste is then guided and transported into the collision member 32 through the material guide channel 31. At this time, the collision member 32 is driven by the drive member 33 to run, and the solid waste is thrown out by the collision member 32 and collides with the structure inside the collision member 32.

[0039] Continue to refer to Figure 1 , Figure 2 , Figures 4 to 7As shown, the collision component 32 includes a support frame 321, an outer cylinder 322, an inner cylinder 323, a rotating rod 324, a pushing part 325, a first crushing tooth 326, and a second crushing tooth 327. The support frame 321 is fixedly connected inside the housing 11. The outer cylinder 322 and the inner cylinder 323 are both fixedly connected to the top of the support frame 321, and the outer cylinder 322 and the inner cylinder 323 are coaxially arranged. The bottom end of the material guide channel 31 extends into the top end of the inner cylinder 323 so that the crushed solid waste can be transported into the inner cylinder 323. The outer side of the inner cylinder 323 is provided with multiple discharge ports 328 communicating with its inner side. The rotating rod 324 is rotatably connected to the inner cylinder 323 and fixedly connected to the driving component 33. The pushing part 325 is fixedly connected to the outer side of the rotating rod 324. When the driving component 33 drives the rotating rod 324 to rotate, it drives the pushing part 325 to rotate. The pushing part 325 pushes the solid waste in the inner cylinder 323, causing it to be thrown out from the discharge port 328 towards the inner wall of the outer cylinder 322. Multiple crushing teeth 326 and multiple crushing teeth 327 are provided. Multiple crushing teeth 326 are fixedly connected to the inner wall of the outer cylinder 322, and multiple crushing teeth 327 are fixedly connected to the outer wall of the inner cylinder 323. The solid waste thrown out from the discharge port 328 first collides with the crushing teeth 326 on the inner wall of the outer cylinder 322, and some of the rebounding solid waste then collides with the crushing teeth 327, thus promoting the separation of concrete waste from magnetically adsorbable metals.

[0040] Continue to refer to Figure 1 , Figure 2 , Figures 4 to 7 As shown, the drive component 33 includes a mounting box 331, a mounting part 332, a rotating shaft 333, a transmission structure 334, a first bevel gear 335, and a second bevel gear 336. The mounting box 331 and the mounting part 332 are both fixedly connected to the bottom of the inner cylinder 323. The mounting part 332 is located inside the mounting box 331, and the rotating shaft 333 is rotatably connected to the mounting part 332. The front end of the rotating shaft 333 passes through the mounting box 331 and the housing 11 in sequence. The transmission structure 334 is connected between the front end of the rotating shaft 333 and the front end of the crushing roller 211. Specifically, the transmission structure 334 includes a transmission belt and two transmission wheels. The two transmission wheels are fixedly connected to the front ends of the rotating shaft 333 and the crushing roller 211, respectively. The transmission belt is connected between the two transmission wheels so that when the crushing roller 211 rotates, it can drive the rotating shaft 333 to rotate. The speed ratio between the crushing roller 211 and the rotating shaft 333 is between 1:3 and 1:8, that is, when the crushing roller 211 rotates once, it can drive the rotating shaft 333 to rotate 3 to 8 times. The first bevel gear 335 is fixedly connected to the rear end of the rotating shaft 333, and the second bevel gear 336 is fixedly connected to the bottom end of the rotating rod 324. When the rotating shaft 333 rotates, it can drive the first bevel gear 335 and the second bevel gear 336 to mesh and drive the rotating rod 324 to rotate, thereby providing power for the rotation of the rotating rod 324. The speed ratio between the rotating rod 324 and the rotating shaft 333 is 1:1.

[0041] like Figure 5 , Figure 6 and Figure 7 As shown, the direction adjustment mechanism 4 includes a shield 41 and a transmission component 42. The shield 41 is disposed inside the inner cylinder 323 and is coaxially arranged with it. The side wall of the shield 41 is in contact with the inner wall of the inner cylinder 323. Two notches 411 are provided on the outer side of the shield 41. The notches 411 are adapted to the discharge ports 328 on the inner cylinder 323. The two notches 411 can be connected to two non-adjacent discharge ports 328 on the inner cylinder 323. Solid waste can be thrown from the two non-adjacent discharge ports to the inner wall of the outer cylinder through the two notches to form two segments of solid waste. There is a certain distance between the two segments of solid waste thrown out, so as to avoid the solid waste in the two segments colliding between the outer cylinder and the inner cylinder, thereby enhancing the collision effect between the solid waste and the internal structure of the collision mechanism.

[0042] Continue to refer to Figure 5 , Figure 6 and Figure 7 As shown, the transmission component 42 includes a fixed sleeve 421, a fixed base 422, a third bevel gear 423, and a fourth bevel gear 424. The fixed sleeve 421 is fixedly connected to the bottom of the shield 41 and rotatably connected to the inner cylinder 323, and is sleeved on the rotating rod 324. The fixed base 422 is fixedly connected to the bottom of the inner cylinder 323. The third bevel gear 423 is rotatably connected to the bottom end of the fixed sleeve 421, and the fourth bevel gear 424 is rotatably connected to the fixed base 422. The third bevel gear 423 and the fourth bevel gear 424 are meshed, and their speed ratio is 1:1. The fourth bevel gear 424 is meshed with a second bevel gear 336, and the speed ratio between the fourth bevel gear 424 and the second bevel gear 336 is between 3:1 and 5:1.

[0043] When the rotating rod 324 rotates, it drives the second bevel gear 336 and the fourth bevel gear 424 to mesh and drive, and drives the fourth bevel gear 424 to mesh and drive the third bevel gear 423, thereby driving the fixed sleeve 421 to rotate. When the fixed sleeve 421 rotates, it drives the shield 41 to rotate, thus generating the power to drive the shield 41 to rotate.

[0044] like Figures 1 to 5As shown, the magnetic screening mechanism 5 includes a magnetic separator 51, a scraper 52, and a linkage structure 53. The magnetic separator 51 is rotatably connected inside the housing 11 and is used to adsorb magnetically adsorbable metals. The scraper 52 is fixedly connected to the left side of the inner wall of the housing 11 and is located between the guide member 335 and the guide plate 27. The scraper 52 is used to scrape off the magnetically adsorbable metals adsorbed on the magnetic separator 51 and make them fall onto the guide plate 27, where they are guided and conveyed. The linkage structure 53 is connected between the magnetic separator 51 and the rotating shaft 333 so that the rotation of the rotating shaft 333 can drive the magnetic separator 51 to rotate.

[0045] Continue to refer to Figures 1 to 5 As shown, the magnetic separator 51 includes a rotating roller 511, magnetic strips 512, and a sleeve 513. The rotating roller 511 is rotatably connected inside the housing 11. Multiple magnetic strips 512 are arranged in a circular pattern and uniformly distributed, embedded on the outer side of the rotating roller 511. These magnetic strips create multiple strong magnetic regions and multiple weak magnetic regions arranged in a circular pattern on the outer side of the rotating roller 511, alternating between the strong and weak magnetic regions. The sleeve 513 is a rubber sleeve, adhesively fitted onto the outer side of the rotating roller 511. The guide component 15 includes a long plate 151 and a short plate 152. The long plate 151 is fixedly connected to the left side of the inner wall of the housing 11 and located above the scraper 52. The bottom end of the long plate 151 contacts the upper outer side of the sleeve 513. The short plate 152 is fixedly connected to the right side of the inner wall of the housing 11 and does not contact the sleeve 513.

[0046] Continue to refer to Figures 1 to 5 As shown, the linkage structure 53 includes a linkage belt and two linkage wheels. The two linkage wheels are fixedly connected to the front ends of the rotating roller 511 and the rotating shaft 333, respectively. The linkage belt is connected between the two linkage wheels so that when the rotating shaft 333 rotates, it can drive the rotating roller 511 to rotate through the linkage structure 53. The speed ratio between the rotating shaft 333 and the rotating roller 511 is between 1:3 and 1:7.

[0047] Guided by the long plate 151 and the short plate 152, the solid waste that has undergone crushing and collision operations comes into contact with the magnetic separator 51. At this time, the magnetic strip 512 on the rotating roller 511 magnetically attracts the magnetically adsorbable metal, so that the magnetically adsorbable metal is magnetically attracted in the strong magnetic area. Then, the rotating shaft 333 drives the rotating roller 511 to rotate through the linkage structure 53, so as to drive the magnetically adsorbable metal to move along a circular track. When the magnetically adsorbable metal moves to the scraper 52, it is blocked by it, so that it cannot continue to move along the circular track. When the magnetically adsorbable metal moves to the weak magnetic area, it naturally falls onto the guide plate 17 by its own gravity, while the concrete waste, because it is not magnetically attracted, will fall directly onto the guide plate 16.

[0048] like Figure 1 , Figure 2 and Figure 5 As shown, the dust screening mechanism 6 includes a windshield 61, a wind generator 62, and a conveying pipe 63. The windshield 61 is fixedly connected to the bottom of the housing 11, and the wind generator 62 is fixedly connected inside the windshield 61. The wind generator 62 generates wind to draw air from inside the housing 11. The conveying pipe 63 is fixedly connected to the left side of the windshield 61. When the wind generator 62 is activated, it generates wind to draw air from inside the housing 11, thereby drawing out the dust generated inside the housing 11 during crushing, collision, and magnetic separation operations, and conveying it to the external dust collection device through the conveying pipe 63.

[0049] Working principle: Solid waste with magnetic properties that can attract metal and concrete waste is fed into the box 11 through the hopper 12. The drive source 23 is started to drive the second crushing roller 212 to rotate. When the second crushing roller 212 rotates, it drives the two gears in the gear set 22 to mesh and drive the first crushing roller 211 and the second crushing roller 212 to rotate in opposite directions. The solid waste is crushed by the first crushing roller 211 and the second crushing roller 212.

[0050] After crushing, the solid waste is transported to the material guide channel 31 under the guidance of the guide component 2 14. The material guide channel 31 guides the solid waste to the inner cylinder 323. When the crushing roller 1 211 rotates, it drives the rotating shaft 333 to rotate through the transmission structure 334. When the rotating shaft 333 rotates, it drives the bevel gear 1 335 and bevel gear 2 336 to mesh and drive, thereby driving the rotating rod 324 to rotate. When the rotating rod 324 rotates, it drives the pushing part 325 to rotate, so that the pushing part 325 throws the solid waste in the inner cylinder 323 from the discharge port 328 to the inner wall of the outer cylinder 322. The solid waste thrown from the discharge port 328 first collides with the crushing tooth 1 326 on the inner wall of the outer cylinder 322. Some of the rebounding solid waste then collides with the crushing tooth 2 327, so as to promote the separation of concrete waste from magnetically adsorbable metal.

[0051] When the rotating rod 324 rotates, it drives the shield 41 to rotate through the transmission component 42, so that when the pushing part 325 pushes the solid waste in the inner cylinder 323, it can be thrown from two non-adjacent discharge ports 328 through two notches 411 to the inner wall of the outer cylinder 322, so as to form two sections of solid waste. There is a certain distance between the two sections of solid waste, so as to avoid the solid waste in the two sections from colliding between the outer cylinder 322 and the inner cylinder 323.

[0052] Guided by the long plate 151 and the short plate 152, the solid waste that has undergone the collision operation comes into contact with the magnetic separator 51. At this time, the magnetic strip 512 on the rotating roller 511 magnetically attracts the magnetically adsorbable metal, so that the magnetically adsorbable metal is magnetically attracted in the strong magnetic area. Then, the rotating shaft 333 drives the rotating roller 511 to rotate through the linkage structure 53, so as to drive the magnetically adsorbable metal to move along a circular track. When the magnetically adsorbable metal moves to the scraper 52, it is blocked by it, so that it cannot continue to move along the circular track. When the magnetically adsorbable metal moves to the weak magnetic area, it naturally falls onto the guide plate 17 by its own gravity. The concrete waste, because it is not magnetically attracted, will fall directly onto the guide plate 16. The concrete waste is discharged and conveyed outward through the discharge port 111 under the guidance of the guide plate 16, and the magnetically adsorbable metal is discharged and conveyed outward through the discharge port 112 under the guidance of the guide plate 17.

[0053] The wind generator 62 is activated to generate wind to draw air from inside the housing 11, thereby drawing out the dust generated inside the housing 11 during crushing, collision and magnetic separation operations, and conveying it to the dust collection device outside through the conveying pipe 63.

[0054] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An automatic sorting and recycling machine for road construction waste, comprising a processing box (1), a crushing mechanism (2), and a magnetic screening mechanism (5), wherein the crushing mechanism (2) and the magnetic screening mechanism (5) are arranged vertically and are both installed in the processing box (1), characterized in that, It also includes a collision mechanism (3), which is installed inside the processing box (1) and located between the crushing mechanism (2) and the magnetic screening mechanism (5). The collision mechanism (3) includes a collision component (32) and a driving component (33). After the solid waste with magnetic properties that can attract metal and concrete waste is crushed by the crushing mechanism (2) and falls into the collision component (32), the driving component (33) drives the collision component (32) to run, so that the collision component (32) swings the solid waste and causes the solid waste to collide with the internal structure of the collision component (32).

2. The automatic sorting and recycling machinery for road construction waste according to claim 1, characterized in that, The collision component (32) includes an outer cylinder (322), an inner cylinder (323), a rotating rod (324), a pushing part (325), a first crushing tooth (326), and a second crushing tooth (327). The inner cylinder (323) is located inside the outer cylinder (322). The rotating rod (324) is rotatably connected to the inner cylinder (323), and the pushing part (325) is fixedly connected to the rotating rod (324). Multiple discharge ports (328) are provided on the outer side of the inner cylinder (323). (324) can rotate and drive the pusher (325) to rotate, so that the pusher (325) throws the solid waste in the inner cylinder (323) from the discharge port (328) to the inner wall of the outer cylinder (322). Multiple crushing teeth one (326) and multiple crushing teeth two (327) are provided. Multiple crushing teeth one (326) are fixedly connected to the inner wall of the outer cylinder (322), and multiple crushing teeth two (327) are fixedly connected to the outer wall of the inner cylinder (323).

3. The automatic sorting and recycling machinery for road construction waste according to claim 2, characterized in that, The drive component (33) is connected between the crushing mechanism (2) and the rotating rod (324) so ​​that the crushing mechanism (2) can drive the rotating rod (324) to rotate when it is running.

4. The automatic sorting and recycling machinery for road construction waste according to claim 3, characterized in that, The collision mechanism (3) also includes a material guiding channel (31), which is fixedly connected inside the box (11) and is used to guide the crushed solid waste into the inner cylinder (323).

5. The automatic sorting and recycling machinery for road construction waste according to claim 3, characterized in that, It also includes a direction adjustment mechanism (4), which is installed on the inner cylinder (323) and is used to adjust the direction of the solid waste thrown out of the inner cylinder (323).

6. The automatic sorting and recycling machinery for road construction waste according to claim 5, characterized in that, The direction adjustment mechanism (4) includes a rotatable shield (41), which is rotatably connected to the inner cylinder (323). The shield (41) has two notches (411) that can be connected to two non-adjacent discharge ports (328).

7. The automatic sorting and recycling machinery for road construction waste according to claim 6, characterized in that, The direction adjustment mechanism (4) also includes a transmission component (42), which is connected between the shield (41) and the drive component (33) so that the drive component (33) can drive the shield (41) to rotate through the transmission component (42) when it is running.

8. The automatic sorting and recycling machinery for road construction waste according to claim 1, characterized in that, It also includes a dust screening mechanism (6), which is fixedly connected to the bottom of the processing box (1) and is used to transport the dust generated during crushing, collision and magnetic separation operations.

9. The automatic sorting and recycling machinery for road construction waste according to claim 8, characterized in that, The dust screening mechanism (6) includes a wind shield (61), a wind generator (62), and a conveying pipe (63). The wind shield (61) is fixedly connected to the bottom of the processing box (1). The wind generator (62) is fixedly connected inside the wind shield (61). The wind generator (62) can generate wind to draw air from inside the box (11). The conveying pipe (63) is fixedly connected to the wind shield (61).

Images