Waste recovery device for highway traffic construction

Abstract

The invention belongs to the technical field of waste recovery, and discloses a waste recovery device for highway traffic construction, which comprises a rack fixedly mounted on the ground; the screening box is erected on the rack, a conveying assembly used for conveying powder waste is arranged in the screening box, and the bottom end of the screening box communicates with a discharging assembly used for discharging waste powder. The crushing box is arranged at the top end of the screening box, a crushing assembly used for crushing waste materials is arranged in the crushing box, and the crushed waste materials enter the screening box; an inlet of the separation barrel is formed between the crushing assembly and the screening box, and the separation assembly below the crushing assembly feeds metal in the waste into the inlet of the separation barrel; the dust falling box is hinged to the top end of the crushing box and used for spraying and falling dust during crushing. The device is compact in structure and convenient to use, metal and nonmetal in the highway construction waste can be recycled, the separation and recycling efficiency is high, resource waste is avoided, environment pollution caused by landfill treatment can be avoided, and the device is convenient to popularize and use in the highway construction process.

Description

Technical Field

[0001] The present invention relates to the technical field of waste recycling, and in particular to a waste recycling device for highway traffic construction. Background Art

[0002] During highway traffic construction, a large amount of waste will be generated, such as waste concrete blocks, broken road surface materials, steel bars, etc. If these wastes are not properly treated, it will not only cause waste of resources, but also may cause serious pollution to the environment. Therefore, how to effectively recycle and treat these wastes has become an urgent problem to be solved in the current highway traffic construction field.

[0003] At present, there are already some waste recycling devices on the market, but they have some problems when dealing with highway traffic construction waste; some devices can only handle specific types of waste, and cannot achieve comprehensive recycling of various wastes, and cannot separate the metal and non-metal materials in the waste, resulting in inconvenient recycling of the waste, causing waste of resources and environmental pollution; some devices have low recycling efficiency and cannot meet the needs of large-scale construction; there are also some devices that will generate pollution such as dust when dealing with waste, causing secondary pollution to the environment.

[0004] In view of the above problems, the present invention proposes a waste recycling device for highway traffic construction to solve the above technical problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a waste recycling device for highway traffic construction to solve the problems existing in the prior art.

[0006] To achieve the above purpose, the present invention provides the following solutions: The present invention provides a waste recycling device for highway traffic construction, including:

[0007] A frame, which is fixedly installed on the ground;

[0008] A screening box, which is mounted on the frame. A conveying component for conveying waste powder is arranged in the screening box, and a discharging component for discharging waste powder is communicated with the bottom end of the screening box;

[0009] A crushing box, which is arranged at the top of the screening box. A crushing component for crushing waste is arranged in the crushing box, and the crushed waste enters the screening box;

[0010] A separation cylinder, the inlet of which is arranged between the crushing component and the screening box. A separation component below the crushing component sends the metal in the waste to the inlet of the separation cylinder;

[0011] A dust-removing box, which is hinged at the top of the crushing box and is used for spraying dust during crushing.

[0012] Preferably, the crushing assembly comprises a guide block arranged in the crushing box, wherein a first crushing roller and a second crushing roller arranged in parallel and with a gap are arranged in the guide block, and the first crushing roller and the second crushing roller rotate towards each other toward the center.

[0013] Preferably, the separation assembly comprises a separation block fixedly mounted on the bottom end of one side of the guide block, and the separation block is arranged corresponding to the bottom end of the first crushing roller and is located above the separation cylinder.

[0014] Preferably, the separation assembly further comprises a plurality of permanent magnets circumferentially equidistantly embedded in the first crushing roller, the permanent magnets attracting metal in the waste material to the top of the separation cylinder and the metal is pushed down by the separation block and falls into the separation cylinder for discharge.

[0015] Preferably, the conveying assembly includes a conveying shaft rotatably connected to the screening box, and two oppositely arranged spiral conveying plates are arranged on the conveying shaft. The two spiral conveying plates rotate in opposite directions to convey waste materials from various places in the screening box into the discharge assembly for discharge.

[0016] Preferably, the conveying assembly further comprises a plurality of rolling rods staggeredly arranged on the conveying shaft, the ends of the rolling rods being rotatably connected to rolling rollers, the rolling rollers rolling obliquely on the inner wall of the screening box, and the rolling rollers are staggered with the spiral conveying sheet.

[0017] Preferably, the discharge assembly includes a discharge pipe arranged corresponding to the discharge port of the screening box, the discharge port is connected to the discharge pipe, and a screw conveyor is arranged in the discharge pipe to convey the waste falling into the discharge pipe to the position of the discharge port and discharge it.

[0018] Preferably, a liquid homogenizing chamber is provided in the dust reduction box, and the liquid homogenizing chamber is connected to the outside through a liquid inlet pipe provided on the dust reduction box; a plurality of spray heads are provided on the side of the liquid homogenizing chamber facing the crushing box, and the spray heads are connected to the liquid homogenizing chamber.

[0019] Preferably, mounting seats are symmetrically arranged on both sides of the screening box, a telescopic rod is hingedly installed on the mounting seat, the output end of the telescopic rod extends toward the dust reduction box, a driving block corresponding to the output end of the telescopic rod is arranged at the top of the dust reduction box, and the output end of the telescopic rod is hinged to the driving block.

[0020] Preferably, a clutch is fixedly mounted on the frame, an input end of the clutch is transmission-connected to a drive motor, and an output end of the clutch is transmission-connected to the conveying shaft and the first crushing roller respectively.

[0021] Compared with the prior art, the present invention has the following advantages and technical effects: The present invention discloses a waste recycling device for highway traffic construction. Through multiple components such as crushing, screening, and separation, it can comprehensively recycle various wastes generated in highway traffic construction, such as waste concrete blocks, crushed road surface materials, steel bars, etc. The crushing box crushes various wastes, the screening box processes powder wastes, and the separation cylinder separates metal wastes, meeting the treatment requirements for different types of wastes; the coordinated work of each component realizes the process flow of waste treatment; the crushing component crushes large waste blocks, facilitating subsequent treatment; the conveying component and the discharging component quickly process powder wastes; the separation component timely separates metal wastes. The whole process is efficient and orderly, capable of meeting the waste recycling needs of large-scale construction; specifically, the frame serves as the supporting structure of the entire device, fixedly installed on the ground, providing a stable installation foundation for other components, ensuring that the device remains stable during operation, and avoiding affecting the normal progress of waste recycling work due to shaking or displacement; the screening box is erected on the frame, and the internal conveying component is used to convey powder wastes, and the discharging component at the bottom can discharge waste powders, realizing the conveying and separation of powdery substances in the waste, being able to separately process the powder in the waste, and improving the pertinence and efficiency of recycling; the crushing box is arranged at the top of the screening box, and the internal crushing component is used to crush the waste, turning large waste blocks into small pieces, facilitating subsequent screening and recycling treatment, and at the same time exposing the steel bar metals wrapped by the concrete waste, facilitating recycling; the crushed waste enters the screening box and jointly completes the particle size treatment of the waste with the screening box; the inlet of the separation cylinder is located between the crushing component and the screening box, and the separation component under the crushing component sends the metals in the waste into the inlet of the separation cylinder, realizing the separation and recycling of metal substances in the waste, being able to effectively extract the metal resources in the waste, and improving the resource utilization rate; the dust reduction box is hinged at the top of the crushing box and sprays for dust reduction during crushing, solving the problem of dust pollution generated during the waste crushing process, reducing secondary pollution to the environment, and protecting the health of operators and the surrounding environment.

[0022] The structure of the present invention is compact and easy to use. It can realize the recovery of metals and non-metals in highway construction wastes, with high separation and recovery efficiency, avoiding waste of resources, and also avoiding environmental pollution caused by landfill treatment, being convenient for popularization and use during highway construction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 is the axonometric view of the waste recycling device for highway traffic construction of the present invention;

[0025] Figure 2Schematic side view structure diagram of the waste recycling device for highway traffic construction of the present invention;

[0026] Figure 3 Axonometric view of the conveying component of the present invention;

[0027] Figure 4 For the present invention Figure 2 Partial enlarged view of A in;

[0028] Figure 5 For the present invention Figure 2 Partial enlarged view of B in;

[0029] Figure 6 For the present invention Figure 2 Partial enlarged view of C in;

[0030] Figure 7 Schematic structure diagram of the connecting pipe of the present invention;

[0031] In the figure: 1, frame; 2, screening box; 3, crushing box; 4, separation cylinder; 5, dust reduction box; 11, clutch; 12, drive motor; 13, output wheel; 14, transmission belt; 15, transmission box; 16, support leg; 17, fixed foot; 21, conveying shaft; 22, spiral conveying blade; 23, rolling rod; 24, rolling roller; 25, discharge pipe; 26, screw conveyor; 27, conveying motor; 28, discharge port; 29, discharge outlet; 210, support frame; 211, connecting pipe; 212, sieve powder net; 213, support block; 214, screening frame; 215, sliding rod; 216, return spring; 31, guide block; 32, first crushing roller; 33, second crushing roller; 34, separation block; 35, permanent magnet; 36, crushing block; 37, feed pipe; 41, acceleration roller; 51, liquid homogenizing cavity; 52, liquid inlet pipe; 53, spray head; 54, mounting seat; 55, telescopic rod; 56, drive block; 57, hinge. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0034] Referring to Figures 1 - 7 as shown, this embodiment provides a waste recycling device for highway traffic construction, including:

[0035] Frame 1, which is fixedly installed on the ground;

[0036] Screening box 2, which is mounted on frame 1. A conveying component for conveying waste powder is arranged inside screening box 2, and a discharge component for discharging waste powder is communicated with the bottom end of screening box 2;

[0037] Crushing box 3, which is arranged at the top of screening box 2. A crushing component for crushing waste is arranged inside crushing box 3, and the crushed waste enters screening box 2;

[0038] Separation cylinder 4, the inlet of which is arranged between the crushing component and screening box 2. The separation component below the crushing component sends the metal in the waste to the inlet of separation cylinder 4;

[0039] Dust-removing box 5, which is hinged to the top of crushing box 3 and is used for spraying dust during crushing.

[0040] The present invention discloses a waste recycling device for highway traffic construction. Through multiple components such as crushing, screening, and separation, it can comprehensively recycle and process various wastes generated in highway traffic construction, such as waste concrete blocks, crushed road surface materials, steel bars, etc. The crushing box 3 crushes various wastes, the screening box 2 processes powder wastes, and the separation cylinder 4 separates metal wastes, meeting the treatment requirements for different types of wastes; the coordinated work of each component realizes the process flow of waste treatment; the crushing component crushes large waste blocks, facilitating subsequent treatment; the conveying component and the discharging component quickly process powder wastes; the separation component timely separates metal wastes. The whole process is efficient and orderly, capable of meeting the waste recycling needs of large-scale construction; specifically, the frame 1 serves as the support structure of the entire device, is fixedly installed on the ground, provides a stable installation foundation for other components, ensures that the device remains stable during operation, and avoids affecting the normal progress of waste recycling work due to shaking or displacement; the screening box 2 is erected on the frame 1, and the internal conveying component is used to convey powder wastes, and the discharging component at the bottom can discharge waste powders, realizing the conveying and separation of powdery substances in the wastes, being able to separately process the powders in the wastes, and improving the pertinence and efficiency of recycling; the crushing box 3 is arranged at the top of the screening box 2, and the internal crushing component is used to crush the wastes, turning large waste blocks into small pieces, facilitating subsequent screening and recycling treatment, and at the same time exposing the steel bar metals wrapped by the concrete wastes, facilitating recycling; the crushed wastes enter the screening box 2 and jointly complete the particle size treatment of the wastes with the screening box 2; the inlet of the separation cylinder 4 is located between the crushing component and the screening box 2, and the separation component below the crushing component sends the metals in the wastes into the inlet of the separation cylinder 4, realizing the separation and recycling of metal substances in the wastes, being able to effectively extract the metal resources in the wastes, and improving the resource utilization rate; the dust reduction box 5 is hinged at the top of the crushing box 3 and sprays water for dust reduction during crushing, solving the problem of dust pollution generated during the waste crushing process, reducing the secondary pollution to the environment, and protecting the health of operators and the surrounding environment. The structure of the present invention is compact and easy to use, can realize the recovery of metals and non-metals in highway construction wastes, has high separation and recovery efficiency, avoids waste of resources, and can also avoid environmental pollution caused by landfill treatment, facilitating popularization and use during highway construction.

[0041] In an embodiment of the present invention, a plurality of support legs 16 are provided at the bottom of the frame 1 to support the equipment off the ground; and the bottom ends of the support legs 16 are fixedly connected with fixing feet 17, which can fix the equipment on the ground.

[0042] In an embodiment of the present invention, a plurality of accelerating rollers 41 are arranged inside the separation tube 4, which can accelerate the discharge of the separated metals.

[0043] Further optimized solution: The crushing assembly includes a guiding block 31 arranged in the crushing box 3. Inside the guiding block 31, a first crushing roller 32 and a second crushing roller 33 are arranged in parallel with a gap therebetween, and the first crushing roller 32 and the second crushing roller 33 rotate towards each other in the middle. The two ends of the guiding block 31 arranged in the crushing box 3 are high and the middle is low, so that the waste materials fed into the crushing box 3 through the feed pipe 37 converge towards the middle; there are a first crushing roller 32 and a second crushing roller 33 arranged in parallel with a gap therebetween inside the guiding block 31, and the two rotate towards each other. The waste materials are guided by the guiding block 31 into the space between the first crushing roller 32 and the second crushing roller 33, which can effectively extrude and crush the waste materials entering the crushing box 3, make the waste material particles smaller, facilitate subsequent screening and treatment, improve the crushing efficiency and quality, and enhance the adaptability of the device to different waste materials; at the same time, since the steel bar waste materials are wrapped in solids, the concrete of the solids can be crushed to facilitate the separation of the metal materials.

[0044] In an embodiment of the present invention, a plurality of protruding crushing blocks 36 are arranged in an array on the outer wall of the second crushing roller 33. The concave-convex design can increase the crushing effect during the extrusion process; at the same time, the protruding crushing blocks 36 can also play a role in grasping the waste materials, improving the crushing efficiency.

[0045] Further optimized solution: The separation assembly includes a separation block 34 fixedly installed at the bottom end on one side of the guiding block 31. The separation block 34 is correspondingly arranged with the bottom end of the first crushing roller 32 and is located above the separation cylinder 4; the separation assembly further includes a plurality of permanent magnets 35 embedded in the first crushing roller 32 at equal circumferential intervals. The permanent magnets 35 attract the metals in the waste materials to above the separation cylinder 4 and are pushed down by the separation block 34 and then fall into the separation cylinder 4 and are discharged. The separation block 34 is fixedly installed at the bottom end on one side of the guiding block 31. The separation block 34 corresponds to the bottom end of the first crushing roller 32 and is located above the separation cylinder 4, providing a structural basis for the subsequent separation and guiding of the metal waste materials, helping to smoothly guide the separated metal waste materials into the separation cylinder 4, optimizing the separation path of the metal waste materials, and improving the efficiency of metal recovery; a plurality of permanent magnets 35 are embedded in the first crushing roller 32 at equal circumferential intervals. The permanent magnets 35 are used to attract the metal waste materials. When the attracted waste materials are brought above the separation cylinder 4, they are scraped off from the surface of the first crushing roller 32 by the separation block 34 and fall into the separation cylinder 4, realizing the automatic separation of the metals in the waste materials, improving the accuracy and efficiency of metal separation, effectively recovering the metal resources in the waste materials, and increasing the economic value of waste material recovery.

[0046] For a further optimized solution, the conveying assembly includes a conveying shaft 21 rotatably connected inside the screening box 2. Two oppositely arranged spiral conveying vanes 22 are provided on the conveying shaft 21, and the spiral directions of the two spiral conveying vanes 22 are opposite. The waste materials at various positions inside the screening box 2 are conveyed into the discharging assembly for discharging. The conveying shaft 21 drives the two spiral conveying vanes 22 with opposite spiral directions to rotate, and the outer wall of the spiral conveying vane 22 is in sliding contact with the inner wall of the screening cylinder, which can centrally convey the waste materials at different positions inside the screening box 2 to the discharging assembly, improving the conveying efficiency of the powder waste materials, ensuring that the waste materials can be discharged smoothly, avoiding the accumulation of waste materials inside the screening box 2, and ensuring the continuous operation of the device.

[0047] For a further optimized solution, the conveying assembly further includes a number of rolling rods 23 arranged in a staggered manner on the conveying shaft 21. A rolling roller 24 is rotatably connected to the end of the rolling rod 23, and the rolling roller 24 rolls obliquely on the inner wall of the screening box 2, and the rolling roller 24 is misaligned with the spiral conveying vane 22. The rolling rod 23 pushes the rolling roller 24 to roll and contact the inner wall of the screening box 2. When rotating together with the conveying shaft 21, it can perform secondary rolling on the waste materials inside the screening box 2, further crushing the waste materials with larger particles, improving the treatment effect of the waste materials, and at the same time helping to clean the waste materials attached to the inner wall of the screening box 2, ensuring the normal operation of the device and the screening effect.

[0048] For a further optimized solution, the discharging assembly includes a discharging pipe 25 corresponding to the discharge port 28 of the screening box 2. The discharge port 28 is communicated with the discharging pipe 25, and a screw conveyor 26 is arranged inside the discharging pipe 25 to convey the waste materials falling into the discharging pipe 25 to the position of the discharge port 29 for discharging. The discharging assembly is composed of a discharging pipe 25 communicated with the discharge port 28 of the screening box 2 and a screw conveyor 26 inside the pipe. The screw conveyor 26 rotates under the drive of a conveying motor 27, which can stably convey the waste materials falling into the discharging pipe 25 to the discharge port 29, ensuring the smoothness of waste material discharge, avoiding the blockage of the discharge channel by waste materials, and ensuring the normal working efficiency of the device.

[0049] In an embodiment of the present invention, a support frame 210 is provided on the frame 1 to support the discharging pipe 25 and improve stability.

[0050] In an embodiment of the present invention, referring to the attached Figure 7 As shown, a communicating pipe 211 is installed at the bottom end of the discharge port 28. A screening frame 214 is slidably connected inside the communicating pipe 211. The screening frame 214 elastically slides inside the communicating pipe 211, and a screening powder mesh 212 is embedded therein for screening waste materials; at the same time, since the screening frame 214 is elastically arranged, it can bounce up and down during the process of the rolling roller 24 rolling the waste materials, accelerating the screening of the waste materials.

[0051] In an embodiment of the present invention, a number of support blocks 213 are arranged in the connecting pipe 211 below the screening frame 214. A sliding rod 215 is slidably connected to the support block 213. The top end of the sliding rod 215 is fixedly connected to the bottom end of the screening frame 214. At the same time, a reset spring 216 in a compressed state is sleeved on the sliding rod 215. The two ends of the reset spring 216 are fixedly connected to the screening frame 214 and the support block 213 respectively, so as to realize the elastic lifting of the screening powder mesh 212.

[0052] In a further optimized solution, a liquid homogenizing chamber 51 is arranged in the dust reduction box 5. The liquid homogenizing chamber 51 is communicated with the outside through a liquid inlet pipe 52 arranged on the dust reduction box 5; a number of spray heads 53 are arranged on the side of the liquid homogenizing chamber 51 facing the crushing box 3, and the spray heads 53 are communicated with the liquid homogenizing chamber 51. There is a liquid homogenizing chamber 51 in the dust reduction box 5, which is communicated with the outside through the liquid inlet pipe 52. Spray heads 53 are arranged on one side of the liquid homogenizing chamber 51, so that the dust reduction box 5 can evenly spray dust reduction water mist during operation, realizing efficient dust reduction, reducing the harm of the dust generated during the crushing process to the environment and operators, and improving the safety and cleanliness of the working environment.

[0053] In a further optimized solution, mounting seats 54 are symmetrically arranged on both sides of the screening box 2. An expansion link 55 is hingedly mounted on the mounting seat 54. The output end of the expansion link 55 extends towards the dust reduction box 5. A driving block 56 corresponding to the output end of the expansion link 55 is arranged at the top end of the dust reduction box 5. The output end of the expansion link 55 is hinged to the driving block 56. One side of the dust reduction box 5 is hinged to the top end of the crushing box 3 through a hinge 57. Expansion links 55 are hinged on the mounting seats 54 on both sides of the screening box 2, and the output ends of the expansion links 55 are hinged to the driving blocks 56 at the top end of the free side of the dust reduction box 5, which can realize the opening and closing deflection of the dust reduction box 5, adjust the angle of the dust reduction box 5, so that the spray heads 53 can better align with the crushing area, improve the dust reduction effect, and at the same time facilitate the adjustment of the position of the dust reduction box 5 during equipment maintenance or different working conditions, enhancing the adaptability of the device.

[0054] In a further optimized solution, a clutch 11 is fixedly mounted on the frame 1. The input end of the clutch 11 is drivingly connected to a driving motor 12. The output end of the clutch 11 is respectively drivingly connected to the conveying shaft 21 and the first crushing roller 32. The clutch 11 is mounted on the frame 1. The input end of the clutch 11 is connected to the driving motor 12, and the output end is respectively drivingly connected to the conveying shaft 21 and the first crushing roller 32. Through the clutch 11, the power transmission of one driving motor 12 to the conveying shaft 21 and the first crushing roller 32 is realized, simplifying the structure of the power system, facilitating the unified control and adjustment of the operation of the conveying and crushing functions, and improving the overall operation stability and energy utilization efficiency of the device.

[0055] In one embodiment of the present invention, a transmission box 15 is provided on the side wall of the crushing box 3. The input end of the transmission box 15 is drivingly connected to the output wheel 13 of the clutch 11 through a transmission belt 14 to drive the rotation of the first crushing roller 32 and the second crushing roller 33.

[0056] In one embodiment of the present invention, the transmission box 15 includes two meshing gears. One of the gears is drivingly connected to the transmission belt 14, and the two gears respectively drive the first crushing roller 32 and the second crushing roller 33 to achieve driving.

[0057] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0058] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A waste recycling device for highway traffic construction, characterized in that, Comprising: A frame (1), which is fixedly installed on the ground; A screening box (2), which is erected on the frame (1). A conveying assembly for conveying powder waste is arranged in the screening box (2), and a discharge assembly for discharging waste powder is communicated with the bottom end of the screening box (2); A crushing box (3), which is arranged at the top of the screening box (2). A crushing assembly for crushing waste is arranged in the crushing box (3), and the crushed waste enters the screening box (2); A separation cylinder (4), the inlet of which is arranged between the crushing assembly and the screening box (2). The separation assembly below the crushing assembly sends the metal in the waste to the inlet of the separation cylinder (4); A dust-removing box (5), which is hinged at the top of the crushing box (3) and is used for spraying and dust-removing during crushing.

2. The waste recycling device for highway traffic construction according to claim 1, characterized in that: The crushing assembly includes a guide block (31) arranged in the crushing box (3). A first crushing roller (32) and a second crushing roller (33) which are parallel and arranged with a gap are arranged in the guide block (31), and the first crushing roller (32) and the second crushing roller (33) rotate towards each other in the middle.

3. The waste recycling device for highway traffic construction according to claim 2, wherein: The separation assembly includes a separation block (34) fixedly installed at the bottom end of one side of the guide block (31), and the separation block (34) is correspondingly arranged with the bottom end of the first crushing roller (32) and is located above the separation cylinder (4).

4. The waste recycling device for highway traffic construction according to claim 3, wherein: The separation assembly further includes a plurality of permanent magnets (35) circumferentially and equidistantly embedded in the first crushing roller (32). The permanent magnets (35) attract the metal in the waste to above the separation cylinder (4), and after being pushed down by the separation block (34), it falls into the separation cylinder (4) and is discharged.

5. The waste recycling device for highway traffic construction according to claim 4, wherein: The conveying assembly includes a conveying shaft (21) rotatably connected in the screening box (2). Two oppositely arranged spiral conveying blades (22) are arranged on the conveying shaft (21), and the rotation directions of the two spiral conveying blades (22) are opposite, so as to convey the waste at various positions in the screening box (2) into the discharge assembly for discharging.

6. The waste recycling device for highway traffic construction according to claim 5, characterized in that: The conveying assembly further includes a plurality of rolling rods (23) arranged in a staggered manner on the conveying shaft (21). A rolling roller (24) is rotatably connected to the end of the rolling rod (23), and the rolling roller (24) rolls obliquely on the inner wall of the screening box (2), and the rolling roller (24) is arranged in a staggered position with the spiral conveying blade (22).

7. The waste recycling device for highway traffic construction according to claim 1, characterized in that: The discharge assembly includes a discharge pipe (25) correspondingly arranged with the discharge port (28) of the screening box (2). The discharge port (28) is communicated with the discharge pipe (25). A spiral conveyor (26) is arranged in the discharge pipe (25) to convey the waste falling into the discharge pipe (25) to the position of the discharge port (29) and discharge it.

8. The waste recycling device for highway traffic construction according to claim 1, wherein: A liquid homogenizing chamber (51) is arranged inside the dust settling box (5), and the liquid homogenizing chamber (51) is communicated with the outside through a liquid inlet pipe (52) arranged on the dust settling box (5); a plurality of spray heads (53) are arranged on one side of the liquid homogenizing chamber (51) facing the inside of the crushing box (3), and the spray heads (53) are communicated with the liquid homogenizing chamber (51).

9. The waste recycling device for highway traffic construction according to claim 1, wherein: Mounting seats (54) are symmetrically arranged on both sides of the screening box (2), telescopic rods (55) are hingedly mounted on the mounting seats (54), the output ends of the telescopic rods (55) extend towards the dust settling box (5), a driving block (56) corresponding to the output ends of the telescopic rods (55) is arranged at the top end of the dust settling box (5), and the output ends of the telescopic rods (55) are hinged to the driving block (56).

10. The waste recycling device for highway traffic construction according to claim 5, characterized in that: A clutch (11) is fixedly mounted on the frame (1), the input end of the clutch (11) is drivingly connected with a driving motor (12), and the output end of the clutch (11) is respectively drivingly connected with the conveying shaft (21) and the first crushing roller (32).

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