A construction and demolition waste processing plant

Abstract

The utility model belongs to the technical field of building engineering, especially related to a building engineering waste treatment equipment, include: support frame, support frame one end rotatory connection gear two, support frame upper end fixed cylinder, cylinder inner chamber rotatory connection auger blade one, cylinder one side rotatory connection mounting disc two, mounting disc two sleeve gear one, and fixed, gear one and gear two meshed connection, mounting disc two one side install sieve rod, sieve rod one end install mounting disc one, auger blade one one end fixed auger blade two. The utility model has the spiral conveying and the rotary screening integrated structure realization building waste's continuous processing and classification, convenient to adjust the screening size simultaneously, save time and labour, has improved the work efficiency's advantage.

Description

Technical Field

[0001] This utility model belongs to the field of building engineering technology, and in particular relates to a building engineering waste treatment device. Background Technology

[0002] Construction waste refers to all types of solid waste generated during the construction, renovation, expansion, decoration, demolition, repair, and municipal engineering projects of buildings. It mainly includes waste concrete, bricks, tiles, wood, metal, plastics, glass, gypsum, asphalt, slag, and packaging materials. It may also contain small amounts of hazardous substances generated during construction activities, such as waste paint, waste adhesives, and asbestos. These wastes are typically characterized by complex composition, large volume, heavy weight, and some recyclability. Improper handling can lead to resource waste, environmental pollution, or safety hazards. With the promotion of green building and sustainable development concepts, the classification, recycling, reuse, and environmentally friendly treatment of construction waste have become important issues in the modern construction industry.

[0003] In the current processing technology, plastic waste is first crushed by a crusher, and then enters the screening stage to separate plastic waste of different particle sizes.

[0004] However, existing screening equipment—especially traditional drum screens—has certain limitations in practical applications. Drum screens typically use screens with fixed apertures. When it is necessary to adjust the screening particle size to meet different recycling requirements, the machine must be stopped and the entire screen structure replaced. This process is not only time-consuming and labor-intensive, but also directly affects the continuity of the production line and the overall working efficiency.

[0005] In addition, when the drum screen is installed horizontally, the plastic debris after screening tends to accumulate inside the screen and is difficult to discharge naturally by gravity. It often requires additional adjustment of the screen body tilt angle or manual intervention for cleaning, which not only increases the complexity of operation but also further reduces the screening efficiency. Utility Model Content

[0006] The purpose of this utility model is to address the aforementioned technical problems by providing a construction waste treatment device that integrates screw conveying and rotary screening to achieve continuous treatment and classification of construction waste. It also facilitates adjustment of screening size, saving time and effort and improving work efficiency.

[0007] In view of this, the present invention provides a construction waste treatment device, comprising:

[0008] A support frame, one end of which is rotatably connected to a second gear, and a cylinder is fixed at the upper end of the support frame, with an auger blade rotatably connected to the inner cavity of the cylinder;

[0009] The cylinder is rotatably connected to a second mounting plate, which is fitted with and fixed to a first gear. The first gear meshes with the second gear. A screen rod is mounted on one side of the second mounting plate, and the first mounting plate is mounted on one end of the screen rod. The second auger blade is fixed to one end of the first auger blade.

[0010] In this technical solution,

[0011] Furthermore, a through hole is formed at one end of the second mounting plate, and an annular groove is formed on the inner wall of the second through hole. A bearing is fitted into the annular groove, and the cylinder extends into the second through hole and is rotatably connected to the bearing.

[0012] Furthermore, a through hole is provided at one end of the mounting plate, and multiple screen rods are installed in a ring-shaped arrangement at one end of the mounting plate, with the auger blades extending into the screening holes formed by the multiple screen rods.

[0013] Furthermore, one end of the mounting plate 2 has a circular hole 1, and one end of the mounting plate 1 has a circular hole 2. One end of the screen rod is fixed with a screw, and the other end of the screen rod is fixed with a screw. The screw fixed at one end of the screen rod passes through the circular hole 2 and is threadedly connected to a nut. The screw fixed at the other end of the screen rod passes through the circular hole 1 and is threadedly connected to a nut.

[0014] Furthermore, a support frame has a slot at its front end, a motor is fixed to one end of the inner wall of the slot, the drive end of the motor is connected to one end of a rotating rod, and a gear is fixed to the other end of the rotating rod.

[0015] Furthermore, the first gear and the second gear are vertically aligned.

[0016] Furthermore, a groove is formed at one end of the cylinder, and an auger blade is rotatably connected to one end of the inner wall of the groove. A motor is fixed at the other end of the cylinder, and the drive end of the motor is connected to the auger blade.

[0017] Furthermore, the first auger blade and the second auger blade are horizontally aligned, and the cylinder and the first mounting plate are horizontally aligned with the second mounting plate.

[0018] Furthermore, a connecting port is provided at the upper end of the cylinder, a feeding hopper is fixed at the upper end of the cylinder, a hopper groove is provided at the upper end of the feeding hopper, and the connecting port, the cylinder groove and the hopper groove are connected, with the connecting port and the hopper groove vertically aligned at their centers.

[0019] Furthermore, a base plate is fixed at the bottom of the support frame, and four positioning holes arranged in a rectangular row are provided at the upper end of the base plate.

[0020] The beneficial effects of this utility model are:

[0021] This utility model uses a support frame, with one end of the support frame rotatably connected to a second gear. A cylinder is fixed to the upper end of the support frame, and an auger blade is rotatably connected to the inner cavity of the cylinder. A mounting plate is rotatably connected to one side of the cylinder, and the mounting plate is fitted with and fixed to the first gear. The first gear and the second gear are meshed together. A screen rod is mounted on one side of the mounting plate, with the first mounting plate installed at one end of the screen rod. An auger blade is fixed to one end of the first auger blade. When it is necessary to screen the crushed construction plastic waste, the crushed construction plastic waste is fed into the hopper, and the second motor is started, causing the auger blade and the first auger blade to engage. As the second auger blade rotates, the first auger blade transports the plastic waste into the space composed of multiple screen rods. Simultaneously, the first motor starts, causing the first gear to drive the second gear and the screen rods to rotate. At the same time, the second auger blade rotates, conveying the screened waste out. When different sizes of waste need to be screened, the number of screen rods can be adjusted as needed, so that the gap between the screen rods can be changed as required. This achieves the integration of screw conveying and rotary screening, enabling continuous processing and classification of construction waste. It also facilitates the adjustment of screening size, saving time and labor, and improving work efficiency. Attached Figure Description

[0022] Figure 1 This is the front view of this utility model;

[0023] Figure 2 This is a cross-sectional view of the present invention;

[0024] Figure 3 This is a sectional view of the support frame of this utility model;

[0025] Figure 4 This is a sectional view of the cylinder of this utility model;

[0026] Figure 5 This is a two-section view of the auger blade of this utility model;

[0027] Figure 6 This is the utility model Figure 5 Enlarged view of point A;

[0028] Figure 7 This is the utility model Figure 5 Enlarged view of point B;

[0029] The markings in the diagram are as follows:

[0030] 1. Base plate; 2. Support frame; 3. Cylinder; 4. Feed hopper; 5. Gear 1; 6. Screen rod; 7. Mounting plate 1; 8. Gear 2; 9. Screwdriver blade 1; 10. Screwdriver blade 2; 11. Motor 1; 12. Frame groove; 13. Rotating rod; 14. Cylinder groove; 15. Motor 2; 16. Connecting port; 17. Hopper groove; 18. Through hole 1; 19. Screw; 20. Mounting plate 2; 21. Round hole 1; 22. Annular groove; 23. Bearing; 24. Through hole 2; 25. Round hole 2; 26. Nut. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0032] It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connection arrangements between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0033] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0034] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0035] Please see Figures 1 to 7 The embodiments provided by this utility model are as follows:

[0036] Example: A construction waste treatment device, comprising:

[0037] Support frame 2, one end of support frame 2 is rotatably connected to gear 2 8, the upper end of support frame 2 is fixed to cylinder 3, and the inner cavity of cylinder 3 is rotatably connected to auger blade 1 9;

[0038] The cylinder 3 is rotatably connected to the mounting plate 20. The mounting plate 20 is fitted with gear 5 and fixed. Gear 5 meshes with gear 8. The screen rod 6 is installed on one side of the mounting plate 20. The mounting plate 7 is installed on one end of the screen rod 6. The auger blade 10 is fixed on one end of the auger blade 9.

[0039] The main frame is formed by the fixed connection between the support frame 2 and the cylinder 3. The meshing transmission of gear 5 and gear 8 drives the rotation of the mounting plate 20 and the screen rod 6 connected to it. Simultaneously, the linkage design of auger blade 9 and auger blade 10 achieves a dual function: auger blade 9 propels waste into the inner cavity of the cylinder 3, while auger blade 10 extends into the screening area formed by the screen rod 6, realizing coordinated conveying and screening operations. The screen rod 6 forms an annular screen through the fixing of mounting plate 7 and mounting plate 20, dynamically screening the waste during rotation, while the interlacing movement of auger blade 10 conveys the screened material.

[0040] One end of the mounting plate 20 has a through hole 24, and an annular groove 22 is formed on the inner wall of the through hole 24. The bearing 23 is fitted into the annular groove 22. The cylinder 3 extends into the through hole 24 and is rotatably connected to the bearing 23.

[0041] Mounting disc 20 is nested to cylinder 3 via through hole 24, and with bearing 23 in the annular groove 22, ensures stable rotation of mounting disc 20 relative to cylinder 3. This structure achieves both sealing of power transmission and reduces frictional loss, extending equipment life. The fitting design of bearing 23 facilitates disassembly and maintenance while preventing waste from entering rotating parts.

[0042] One end of the mounting plate 17 has a through hole 18. Multiple screen rods 6 are installed in a ring at one end of the mounting plate 17. The screw conveyor blade 2 10 extends into the screening hole formed by the multiple screen rods 6.

[0043] The through hole 18 of the mounting plate 7 and the annular array of the screen rods 6 form a cylindrical screening space. After the auger blades 10 extend into this space, their spiral propulsion and the rotation of the screen rods 6 can screen the material while conveying it. The gap of the screen rods 6 can be adjusted according to requirements to achieve graded screening, while the synchronous rotation of the auger blades 10 can convey the material while screening it.

[0044] One end of mounting plate 20 has a circular hole 21, and one end of mounting plate 7 has a circular hole 25. One end of screen rod 6 is fixed with a screw 19, and the other end of screen rod 6 is also fixed with a screw 19. The screw 19 fixed at one end of screen rod 6 passes through the circular hole 25 and is threadedly connected to a nut 26. The screw 19 fixed at the other end of screen rod 6 passes through the circular hole 21 and is threadedly connected to a nut 26.

[0045] The screen rod 6 is inserted into the first round hole 21 and the second round hole 25 at both ends via screws 19, and locked with nuts 26, achieving modular assembly. This allows for quick replacement of screen rods 6 with different diameters or spacings to adapt to diverse processing needs. The threaded connection between the screws 19 and the nuts 26 provides a secure axial fixation, preventing the screen rod 6 from loosening during rotation.

[0046] A support frame 2 has a support groove 12 at its front end. A motor 11 is fixed to one end of the inner wall of the support groove 12. The drive end of the motor 11 is connected to one end of the rotating rod 13. A gear 8 is fixed to the other end of the rotating rod 13.

[0047] Motor 11 is fixed to support frame 2 via bracket slot 12, and drives rotating rod 13 to rotate gear 8, forming a compact power transmission system. The axial layout of motor 11 saves space, while the enclosure structure of bracket slot 12 protects the motor and prevents external impacts from affecting its operation.

[0048] Gear 5 and Gear 8 are vertically aligned.

[0049] The vertical center alignment of gear 5 and gear 8 ensures the accuracy and stability of the meshing transmission, reducing the risk of gear wear or skipping. The orthogonal meshing of the two gears optimizes the power transmission path, allowing the screen rod 6 to rotate as needed for material screening.

[0050] A groove 14 is opened at one end of the cylinder 3. One end of the inner wall of the groove 14 is rotatably connected to the auger blade 9. The other end of the cylinder 3 is fixed with a motor 15. The drive end of the motor 15 is connected to the auger blade 9.

[0051] A groove 14 is provided at one end of the cylinder 3 to accommodate and support the rotating connection of the auger blade 9, ensuring its stable operation. A motor 15 is fixed at the other end of the cylinder 3, directly driving the auger blade 9, facilitating the conveying of materials into the space composed of multiple screen rods 6 for screening. The direct drive of the motor 15 reduces transmission losses, improves energy efficiency, and lowers maintenance difficulty.

[0052] Screw blade 19 and screw blade 20 are horizontally aligned, and cylinder 3, mounting plate 17 and mounting plate 20 are horizontally aligned.

[0053] The horizontal center alignment of auger blade 9 and auger blade 10 ensures a smooth transition of materials during conveying, preventing blockages or reduced efficiency due to misalignment. Simultaneously, the horizontal center alignment of cylinder 3, mounting plate 7, and mounting plate 20 optimizes the overall structural balance, reduces vibration during equipment operation, and improves stability and service life. This coaxial layout allows for smoother collaboration between the screening and conveying mechanisms, enhancing the continuity and uniformity of waste treatment.

[0054] A connecting port 16 is opened at the upper end of the cylinder 3, and a feeding hopper 4 is fixed at the upper end of the cylinder 3. A hopper groove 17 is opened at the upper end of the feeding hopper 4, and the connecting port 16, the cylinder groove 14 and the hopper groove 17 are connected. The connecting port 16 and the hopper groove 17 are vertically aligned.

[0055] A connecting port 16 is provided at the upper end of the cylinder 3, which connects to the trough 17 of the feed hopper 4 to form a smooth feeding channel. The vertical center alignment design of the connecting port 16 and the trough 17 ensures that the material falls evenly into the cylinder 3, avoiding uneven loading or accumulation, thereby improving conveying and screening efficiency. The enlarged opening of the trough 17 of the feed hopper 4 facilitates the disposal of large-volume waste, reduces manual intervention, and improves the degree of automation.

[0056] The bottom of the support frame 2 is fixed to the base plate 1, and the upper end of the base plate 1 has four positioning holes arranged in a rectangular row.

[0057] The support frame 2 is fixed to the base plate 1 at its bottom, enhancing the overall stability of the equipment and preventing displacement or tilting during operation. Four rectangular arrayed positioning holes on the base plate 1 facilitate fixing the equipment with bolts or feet, adapting to different installation environments. This structure improves the equipment's vibration resistance, ensuring stability during high-speed operation, while also facilitating transportation and on-site installation and adjustment. The standardized design of the positioning holes also facilitates modular docking with other auxiliary equipment such as conveyor belts and collection boxes, improving the system's scalability.

[0058] In this embodiment, when it is necessary to screen the crushed construction plastic waste, the operator first pours the pre-treated plastic waste into the trough 17 at the upper end of the feed hopper 4. Under the action of gravity, the waste enters the cylinder trough 14 inside the cylinder 3 through the connecting port 16. At this time, the second motor 15 is started, driving the first auger blade 9 and its extension section, the second auger blade 10, to rotate synchronously.

[0059] During the conveying stage, the auger blades 9 push the waste material in the trough 14 axially into the dynamic screening space composed of multiple screen rods 6. Simultaneously, the motor 11 drives the gear 8 to rotate via the rotating rod 13. Since gear 8 meshes with gear 5, it drives the mounting plate 20 and the screen rods 6 fixed on it to rotate as a whole. The mounting plate 7 rotates synchronously with the screen rods 6, forming a rotating screen structure.

[0060] During the screening process, the rotating screen rods 6 efficiently classify the waste material. Small particles that meet the size requirements fall through the gaps in the screen rods 6, while larger particles are further propelled by the auger blades 10, ultimately achieving separation. If the screening particle size needs to be adjusted, the nut 26 can be removed to increase or decrease the number of screen rods 6 to change the gap size. Reducing the number of screen rods 6 increases the gap, which is suitable for processing larger waste particles; conversely, increasing the number of screen rods increases the screening accuracy.

[0061] By integrating screw conveyor and rotary screen design, continuous waste processing is achieved. The adjustable screen rod structure enhances adaptability, significantly improving screening efficiency and flexibility. This integrated screw conveyor and rotary screen structure enables continuous processing and sorting of construction waste, while facilitating adjustment of screening size, saving time and labor, and improving work efficiency.

[0062] The embodiments of this application have been described above with reference to the accompanying drawings. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. This application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A construction waste treatment device, characterized in that... ,include: Support frame (2), one end of the support frame (2) is rotatably connected to gear two (8), the upper end of the support frame (2) is fixed to cylinder (3), and the inner cavity of the cylinder (3) is rotatably connected to auger blade one (9); The cylinder (3) is rotatably connected to the second mounting plate (20) on one side. The second mounting plate (20) is fitted with the first gear (5) and fixed. The first gear (5) meshes with the second gear (8). The screen rod (6) is installed on one side of the second mounting plate (20). The first mounting plate (7) is installed at one end of the screen rod (6). The second auger blade (10) is fixed at one end of the first auger blade (9).

2. The construction waste treatment equipment according to claim 1, characterized in that: The mounting plate 2 (20) has a through hole 2 (24) at one end, and an annular groove (22) is formed on the inner wall of the through hole 2 (24). The bearing (23) is fitted into the annular groove (22), and the cylinder (3) extends into the through hole 2 (24) and is rotatably connected to the bearing (23).

3. The construction waste treatment equipment according to claim 2, characterized in that: One end of the mounting plate (7) has a through hole (18), and multiple screen rods (6) are installed in a ring at one end of the mounting plate (7). The screw conveyor blade (10) extends into the screening hole formed by the multiple screen rods (6).

4. The construction waste treatment equipment according to claim 1, characterized in that: One end of the mounting plate 2 (20) has a circular hole 1 (21), and one end of the mounting plate 1 (7) has a circular hole 2 (25). One end of the screen rod (6) is fixed with a screw (19), and the other end of the screen rod (6) is fixed with a screw (19). The screw (19) fixed at one end of the screen rod (6) passes through the circular hole 2 (25) and is threadedly connected to a nut (26). The screw (19) fixed at the other end of the screen rod (6) passes through the circular hole 1 (21) and is threadedly connected to a nut (26).

5. The construction waste treatment equipment according to claim 1, characterized in that: The support frame (2) has a frame groove (12) at the front end. One end of the inner wall of the frame groove (12) is fixed with a motor (11). The drive end of the motor (11) is connected to one end of a rotating rod (13). The other end of the rotating rod (13) is fixed with a gear (8).

6. The construction waste treatment equipment according to claim 1, characterized in that: The first gear (5) and the second gear (8) are vertically aligned.

7. The construction waste treatment equipment according to claim 1, characterized in that: One end of the cylinder (3) has a groove (14), and one end of the inner wall of the groove (14) is rotatably connected to the auger blade (9). The other end of the cylinder (3) is fixed with a motor (15), and the driving end of the motor (15) is connected to the auger blade (9).

8. The construction waste treatment equipment according to claim 1, characterized in that: The first auger blade (9) and the second auger blade (10) are horizontally aligned, and the cylinder (3), the first mounting plate (7) and the second mounting plate (20) are horizontally aligned.

9. A construction waste treatment device according to claim 7, characterized in that: The upper end of the cylinder (3) has a connecting port (16), the upper end of the cylinder (3) has a fixed feeding hopper (4), the upper end of the feeding hopper (4) has a hopper groove (17), and the connecting port (16), the cylinder groove (14) and the hopper groove (17) are connected, and the connecting port (16) and the hopper groove (17) are vertically aligned.

10. A construction waste treatment device according to claim 1, characterized in that: The bottom end of the support frame (2) is fixed with a base plate (1), and the upper end of the base plate (1) has four positioning holes arranged in a rectangular row.

Images