Construction waste classification pretreatment device
By adjusting the angle of the support frame and designing the cleaning components, the problems of large particle blockage and low fine particle screening efficiency in existing technologies have been solved, achieving efficient operation of the construction waste sorting and pretreatment device and improving the quality of recycled aggregates.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA RAILWAY 11TH BUREAU GRP CORP LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-07-10
Smart Images

Figure CN224475304U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building materials, and in particular to a pre-treatment device for sorting construction waste. Background Technology
[0002] The main body of a construction waste sorting and pretreatment device is a core equipment unit that integrates multiple multi-functional modules such as crushing, screening, magnetic separation, and air separation. It can initially crush construction waste such as concrete blocks and bricks through mechanical crushing, classify it according to particle size with the help of screening device, separate metal impurities with magnetic separation, and remove light materials with air separation. It realizes the initial sorting, crushing and classification of construction waste, and provides standardized and regulated pre-treated materials for subsequent recycled aggregate production and resource utilization, effectively improving the resource utilization efficiency of construction waste and reducing the subsequent processing load.
[0003] A construction waste sorting and pretreatment device mainly consists of a cylindrical screen cylinder, supporting rollers, a drive motor and a transmission device. When working, the motor drives the screen cylinder to rotate. After the material enters from the feed inlet, it rolls inside the cylinder. Particles smaller than the screen aperture fall through the screen and are screened, while materials larger than the aperture are discharged from the discharge outlet along the cylinder wall.
[0004] An existing construction waste sorting and pretreatment device lacks an adjustable support frame angle during screening, making it impossible to dynamically adjust the screening angle based on material particle size and flowability. This results in large particles easily clogging the screen, low screening efficiency for fine particles, and difficulty in adapting to the pretreatment needs of different construction wastes. Therefore, a construction waste sorting and pretreatment device is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a construction waste sorting and pretreatment device, which aims to improve the problem that the existing technology does not have the function of adjusting the angle of the support frame.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A construction waste sorting and pretreatment device includes a support frame, a telescopic support plate fixedly connected to the outside of the support frame, a cylinder fixedly connected to the top of the telescopic support plate, a toothed plate fixedly connected to the outside of the cylinder, a gear rotatably connected to the outside of the toothed plate, a rotating rod fixedly connected to the inside of the gear, a rotating shaft fixedly connected to the outside of the rotating rod, a rotating rod two fixedly connected to the outside of the rotating shaft, a rotating shaft two fixedly connected to the left end of the rotating rod two, a telescopic rod rotatably connected to the inside of the rotating shaft two, a telescopic rotating shaft rotatably connected to the top of the telescopic rod, a telescopic rotating shaft fixedly connected to the bottom of the support frame, and a cleaning component fixedly connected to the inside of the support frame.
[0008] As a further description of the above technical solution:
[0009] The cleaning assembly includes a cleaning frame, with the cleaning frame fixedly connected inside the support frame. A motor is fixedly connected to the top of the cleaning frame, and a drive shaft is fixedly connected inside the motor. Two rolling shafts are fixedly connected to the outside of the drive shaft, and a rolling belt is rotatably connected inside each of the two rolling shafts. A rotating rod is fixedly connected to the outside of the rolling belt, and a rotating shaft is rotatably connected to the bottom of the rotating rod. A cleaning plate is fixedly connected to the bottom of the rotating shaft, and a support shaft is rotatably connected inside the cleaning plate.
[0010] As a further description of the above technical solution:
[0011] The top of the telescopic support plate is fixedly connected to a telescopic outer shell, and a sliding groove is provided inside the telescopic outer shell;
[0012] As a further description of the above technical solution:
[0013] The support frame is externally fixedly connected to a rotating shaft retainer, and the rotating shaft retainer is internally rotatably connected to a rotating rod three.
[0014] As a further description of the above technical solution:
[0015] A connecting fastener is fixedly connected to the top of the telescopic support plate, and the gear is externally rotatably connected to the inside of the connecting fastener.
[0016] As a further description of the above technical solution:
[0017] A support rod is fixedly connected to the outside of the support shaft, and a support rod is rotatably connected to the outside of the support rod.
[0018] As a further description of the above technical solution:
[0019] The second support rod is fixedly connected to the inside of the second support rod, and the third support rod is rotatably connected to the inside of the second support shaft;
[0020] As a further description of the above technical solution:
[0021] The support rod one has a support groove inside, and the outside of the support rod three is in contact with the inside of the support groove.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, an air pump is used in conjunction with a toothed plate, which in turn is used with a gear. The gear is used in conjunction with a rotating rod, which is used in conjunction with a rotating rod, which is used in conjunction with a telescopic rod and a telescopic housing. The telescopic rod is used in conjunction with a telescopic rotating shaft. Thus, the screening angle can be adjusted in real time according to the material characteristics, such as particle size, humidity, and flowability. This effectively improves the throughput of large particles and the screening accuracy of fine particles, and enhances the adaptability of the equipment to different types of construction waste.
[0024] 2. In this utility model, a motor is used to drive a rotating shaft, which in turn drives a rolling shaft, which in turn drives a rolling belt, which in turn drives a rotating rod, which in turn drives a rotating shaft, and the rotating shaft in turn drives a cleaning plate. This allows for the real-time removal of dust, mud, fibers, and other debris from construction waste, preventing screen blockage and conveyor belt slippage, ensuring the continuous and efficient operation of the sorting equipment, and improving the quality of recycled aggregates. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of a construction waste sorting and pretreatment device proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the sliding groove of a construction waste sorting and pretreatment device proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the rolling shaft of a construction waste sorting and pretreatment device proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the cleaning plate of a construction waste sorting and pretreatment device proposed in this utility model.
[0029] Legend:
[0030] 1. Support frame; 2. Telescopic support plate; 3. Cylinder; 4. Gear plate; 5. Gear; 6. Rotating rod one; 7. Rotating shaft one; 8. Rotating rod two; 9. Rotating shaft two; 10. Telescopic rod; 11. Telescopic rotating shaft; 12. Telescopic outer shell; 13. Sliding groove; 14. Connecting fastener; 15. Rotating shaft fastener; 16. Rotating rod three; 17. Cleaning rack; 18. Motor; 19. Drive rotating shaft; 20. Rolling shaft; 21. Rolling belt; 22. Rotating rod; 23. Rotating shaft; 24. Cleaning plate; 25. Support shaft one; 26. Support rod one; 27. Support rod two; 28. Support shaft two; 29. Support rod three; 30. Support groove. Detailed Implementation
[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0032] Reference Figure 1 , Figure 2 This utility model provides an embodiment of a construction waste sorting and pretreatment device, including a support frame 1. The support frame 1 serves as the basic load-bearing structure of the entire device and adopts a high-strength alloy frame design, which can stably support the weight of the upper cleaning components and related transmission parts, ensuring that the device does not tilt or shake during operation. A rotating shaft fixer 15 is fixedly connected to the outside of the support frame 1, and a rotating rod 16 is rotatably connected inside the rotating shaft fixer 15. The rotating shaft fixer 15 is firmly connected to the support frame 1 by precision bolts, and the high-precision bearing hole opened inside it provides stable rotational support, ensuring that the rotating rod 16 will not deviate during angle adjustment.
[0033] During the angle adjustment of the support frame 1, the rotating rod 16, through its rotational cooperation with the rotating shaft fixer 15, provides auxiliary support force to the support frame 1, ensuring that the support frame 1 remains stable during the rising or falling process and avoiding shaking or jamming. The support frame 1 is externally fixedly connected to a telescopic support plate 2. The telescopic support plate 2 adopts a telescopic structure design, which can adjust the height according to actual working needs. Its surface is treated with anti-slip treatment to ensure the stability of the connection.
[0034] A connecting fastener 14 is fixedly connected to the top of the telescopic support plate 2. The connecting fastener 14 is made of high-strength cast steel and is firmly connected to the telescopic support plate 2 through welding. A telescopic outer shell 12 is fixedly connected to the top of the telescopic support plate 2. The telescopic outer shell 12 provides a stable sliding channel for the telescopic rod 10. Its inner wall is precision polished, which effectively reduces the friction when the telescopic rod 10 slides, so that the telescopic rod 10 can move up and down smoothly.
[0035] The telescopic housing 12 has a sliding groove 13 inside. The sliding groove 13 ensures that the telescopic rod 10 will not shake or get stuck during the sliding process. At the same time, the limiting protrusions at both ends can effectively prevent the telescopic rod 10 from sliding out of the sliding groove 13, thus improving the safety of the device. The top of the telescopic support plate 2 is fixedly connected to a cylinder 3. The cylinder 3 adopts a double-acting design, which can provide stable and strong driving force to meet the adjustment needs of the support frame 1 at different heights.
[0036] A gear plate 4 is fixedly connected to the outside of the cylinder 3. The gear plate 4 is firmly connected to the piston rod of the cylinder 3 by high-strength bolts. Its surface is machined with high-precision involute tooth profile to ensure accurate power transmission during transmission and reduce transmission error. A gear 5 is rotatably connected to the outside of the gear plate 4. The gear 5 rotates under the drive of the gear plate 4, which can smoothly convert the linear motion of the cylinder 3 into rotational motion, providing power support for subsequent angle adjustment.
[0037] The external rotating connection of gear 5 is inside the connecting fixture 14. The high-precision bearing installed inside the connecting fixture 14 makes the rotation of gear 5 smoother, reduces energy loss, and effectively improves the service life of gear 5. The gear 5 is internally fixedly connected to a rotating rod 6, and the externally fixed connection of the rotating rod 6 is a rotating shaft 7. The rotating rod 6 rotates synchronously under the drive of gear 5. Its length is precisely calculated so that it can provide a suitable torque to the rotating shaft 7 during rotation.
[0038] As a key component for power transmission, the rotating shaft 7 is made of high-strength alloy steel and its surface is hardened to withstand large torques without deformation, ensuring reliable power transmission. The rotating shaft 7 is externally fixedly connected to the rotating rod 8, which makes circular motion under the drive of the rotating shaft 7. Its motion trajectory is precisely designed to convert the rotational motion of the rotating shaft 7 into linear motion, thereby realizing the height adjustment of the support frame 1.
[0039] The left end of the rotating rod 28 is fixedly connected to the rotating shaft 29. The internal part of the rotating shaft 29 is rotatably connected to the telescopic rod 10. The rotating shaft 29 provides a flexible rotatable connection between the rotating rod 28 and the telescopic rod 10, so that the rotating rod 28 can drive the telescopic rod 10 to move up and down in the sliding groove 13 during the movement. At the same time, the telescopic rod 10 can be adjusted in angle during the movement to adapt to different working conditions. Under the push of the rotating rod 28, the telescopic rod 10 moves in a straight line along the sliding groove 13. Its surface is plated with a hard chrome layer, which has good wear resistance and corrosion resistance, and can ensure long-term stable operation.
[0040] The top of the telescopic rod 10 is rotatably connected to a telescopic shaft 11. The telescopic shaft 11 adopts a universal joint design, which allows the support frame 1 to adjust its angle while the telescopic rod 10 moves up and down, realizing the coordinated action of multiple components. This allows the support frame 1 to flexibly adjust its position and angle according to actual working needs. The telescopic shaft 11 is externally fixedly connected to the bottom of the support frame 1. Through this connection method, the linear motion of the telescopic rod 10 can be accurately transmitted to the support frame 1, ensuring that the support frame 1 can move up or down according to a predetermined trajectory.
[0041] The support frame 1 is internally fixed with a cleaning component. As the core functional component of the construction waste sorting and pre-treatment device, the cleaning component can effectively clean and pre-treat construction waste, removing dust, dirt and other impurities, and providing good conditions for subsequent sorting and treatment.
[0042] Reference Figure 1 , Figure 3 , Figure 4 The cleaning components include a cleaning frame 17, which is made of high-strength aluminum alloy profile, featuring light weight and high strength. The internal reinforcing rib structure further improves the overall rigidity of the cleaning frame 17, ensuring that it will not deform during the cleaning process. The cleaning frame 17 is fixedly connected to the support frame 1. The cleaning frame 17 is firmly connected to the support frame 1 by bolts. Its installation position is precisely calculated to ensure the cleaning effect.
[0043] A motor 18 is fixedly connected to the top of the cleaning rack 17. The motor 18 is a high-efficiency and energy-saving variable frequency motor, which can provide stable and strong power to drive the cleaning components to work normally. A drive shaft 19 is fixedly connected inside the motor 18. The drive shaft 19 serves as the output shaft of the motor 18. It is made of high-strength alloy steel, and its surface is precision machined. It is connected to the rotor of the motor 18 with an interference fit to ensure that the power of the motor 18 can be accurately transmitted.
[0044] Two rolling shafts 20 are externally fixedly connected to the drive shaft 19. The two rolling shafts 20 are symmetrically distributed at both ends of the drive shaft 19. The overlap between their axes and the axis of the drive shaft 19 is controlled within ±0.03mm to ensure that no eccentricity occurs during rotation, thereby reducing vibration and noise. Rolling belts 21 are rotatably connected inside each of the two rolling shafts 20. The rolling belts 21 are made of high-strength rubber material and have a good coefficient of friction on their surface. They can run smoothly under the drive of the rolling shafts 20, providing power for cleaning.
[0045] A rotating rod 22 is fixedly connected to the outside of the rolling belt 21. The rotating rod 22 moves with the rolling belt 21. The connection between the rotating rod 22 and the rolling belt 21 is detachable for easy installation and maintenance. A rotating shaft 23 is rotatably connected to the bottom of the rotating rod 22. A cleaning plate 24 is fixedly connected to the bottom of the rotating shaft 23. The rotating shaft 23 provides a flexible rotating connection between the rotating rod 22 and the cleaning plate 24, allowing the cleaning plate 24 to be adjusted in angle around the rotating shaft 23 under the drive of the rotating rod 22 to adapt to different cleaning needs.
[0046] The cleaning plate 24 is made of high-density polyurethane material, and its surface has good wear resistance and corrosion resistance. It can effectively remove dust and debris from the conveyor belt. The cleaning plate 24 is internally connected to a support shaft 25, which provides stable support for the cleaning plate 24, enabling it to maintain balance during operation and ensuring consistent cleaning results.
[0047] Support rod 26 is fixedly connected to the outside of support shaft 25. Support rod 26 provides additional support for cleaning plate 24 under the support of support shaft 25, so that it can better fit the surface of conveyor belt. Support groove 30 is opened inside support rod 26. The size and shape of support groove 30 are precisely designed to provide stable support points for cleaning plate 24.
[0048] Support rod 27 is externally rotatably connected to support rod 1 26. The rotatable connection between support rod 27 and support rod 1 26 allows the cleaning plate 24 to be adjusted within a certain range to adapt to different cleaning scenarios. Support shaft 28 is internally fixedly connected to support rod 27. Support rod 3 29 is internally rotatably connected to support shaft 28. Support shaft 28 provides a fulcrum for the rotation of support rod 27 and support rod 3 29, allowing support rod 3 29 to rotate around support shaft 28, thereby achieving support for different positions.
[0049] During rotation, the end of the support rod 29 can make close contact with the inside of the support groove 30. By locking the support groove 30 in different positions, the cleaning plate 24 can be adjusted at multiple angles, so that it can select the most suitable angle for cleaning operation according to the running speed of the conveyor belt and the cleaning needs.
[0050] Working principle: The starting cylinder 3 drives the toothed plate 4 to move backward. The gear 5, which meshes with the toothed plate 4, rotates as the toothed plate 4 moves. During the rotation of the gear 5, it drives the rotating rod 6 to rotate, which in turn drives the rotating shaft 7 to rotate. The outer wall of the rotating shaft 7 drives the left end of the rotating rod 8 to move upward. The left end of the rotating rod 8 pushes the telescopic rod 10 in the sliding groove 13 inside the telescopic housing 12 to move upward. At the same time, the rotating rod 8 and the telescopic rod 10 complete the angle adjustment around the rotating shaft 9. Meanwhile, the support frame 1 moves upward with the movement of the telescopic rod 10. The telescopic rotating shaft 11 realizes the coordinated action of multiple components. When the support frame 1 moves upward, the rotating shaft fixer 15 and the rotating rod 16 work together to realize the angle adjustment of the support frame 1.
[0051] The motor 18 is started, which drives the drive shaft 19 to rotate. The drive shaft 19 is the shaft of the rolling shaft 20. When the drive shaft 19 rotates, the rolling shaft 20 also rotates, thereby driving the rolling belt 21 inside the rolling shaft 20 to rotate. This causes the cleaning plate 24 on the rotating rod 22 to move left and right on the conveyor belt, thereby achieving the cleaning effect. At the same time, the coordination between the second support rod 27 and the first support rod 26 can be rotated to adjust the angle of the cleaning plate 24 so that the cleaning plate 24 fits the conveyor belt. The presence of the second support shaft 28 enables the third support rod 29 to rotate at a small angle, thereby enabling the third support rod 29 to be locked in the support groove 30 at different positions.
[0052] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A pre-treatment device for sorting construction waste, comprising a support frame (1), characterized in that: The support frame (1) is externally fixedly connected to a telescopic support plate (2), the top of the telescopic support plate (2) is fixedly connected to a cylinder (3), the cylinder (3) is externally fixedly connected to a toothed plate (4), the toothed plate (4) is externally rotatably connected to a gear (5), the gear (5) is internally fixedly connected to a rotating rod (6), the rotating rod (6) is externally fixedly connected to a rotating shaft (7), the rotating shaft (7) is externally fixedly connected to a rotating rod (8), the left end of the rotating rod (8) is fixedly connected to a rotating shaft (9), the rotating shaft (9) is internally rotatably connected to a telescopic rod (10), the top of the telescopic rod (10) is rotatably connected to a telescopic rotating shaft (11), the telescopic rotating shaft (11) is externally fixedly connected to the bottom of the support frame (1), and the support frame (1) is internally fixedly connected to a cleaning component.
2. The construction waste sorting and pretreatment device according to claim 1, characterized in that: The cleaning assembly includes a cleaning frame (17), the cleaning frame (17) is fixedly connected inside the support frame (1), a motor (18) is fixedly connected to the top of the cleaning frame (17), a drive shaft (19) is fixedly connected inside the motor (18), two rolling shafts (20) are fixedly connected to the outside of the drive shaft (19), a rolling belt (21) is rotatably connected inside the two rolling shafts (20), a rotating rod (22) is fixedly connected to the outside of the rolling belt (21), a rotating shaft (23) is rotatably connected to the bottom of the rotating rod (22), a cleaning plate (24) is fixedly connected to the bottom of the rotating shaft (23), and a support shaft (25) is rotatably connected inside the cleaning plate (24).
3. The construction waste sorting and pretreatment device according to claim 1, characterized in that: The top of the telescopic support plate (2) is fixedly connected to a telescopic outer shell (12), and a sliding groove (13) is provided inside the telescopic outer shell (12).
4. The construction waste sorting and pretreatment device according to claim 1, characterized in that: The support frame (1) is externally fixedly connected to a rotating shaft retainer (15), and the rotating shaft retainer (15) is internally rotatably connected to a rotating rod three (16).
5. A construction waste sorting and pretreatment device according to claim 1, characterized in that: The top of the telescopic support plate (2) is fixedly connected to a connecting fastener (14), and the gear (5) is externally rotatably connected to the inside of the connecting fastener (14).
6. A construction waste sorting and pretreatment device according to claim 2, characterized in that: The support shaft 1 (25) is fixedly connected to the outside of the support rod 1 (26), and the support rod 1 (26) is rotatably connected to the outside of the support rod 2 (27).
7. A construction waste sorting and pretreatment device according to claim 6, characterized in that: The second support rod (27) is fixedly connected to the second support shaft (28), and the second support shaft (28) is rotatably connected to the third support rod (29).
8. A construction waste sorting and pretreatment device according to claim 7, characterized in that: The support rod 1 (26) has a support groove (30) inside, and the outside of the support rod 3 (29) is in contact with the inside of the support groove (30).