Recycling and reprocessing device for construction engineering garbage

Abstract

The invention relates to the technical field of constructional engineering, and provides a constructional engineering garbage recycling and reprocessing device which comprises a frame, the bottom of the middle end of the frame is fixedly connected with a material leakage frame used for supporting engineering garbage, the frame conducts primary crushing on the engineering garbage through a crushing roller set arranged at the front end of the frame, and the material leakage frame is fixedly connected with the material leakage frame. And the surface of the engineering garbage such as reinforced cement slabs is cracked, and the engineering garbage is conveyed to the top side of the material leaking frame. The separation effect of reinforcing steel bars and concrete can be remarkably improved in a graded crushing mode, reinforcing steel bar cement board engineering garbage is extruded through a convex extrusion roller and a concave extrusion roller under the synergistic effect of a crushing roller set and an impact block, cracks are generated on the surface of the reinforcing steel bar cement board engineering garbage, and then the two sides of the cracked engineering garbage are raised towards the middle end through an extrusion head; and finally, through falling impact of the impact block, precise crushing is conducted along the protruding positions of the engineering garbage, the concrete structure is crushed and falls off, and therefore reinforcing steel bars in the concrete structure are effectively exposed.

Description

Technical Field

[0001] This invention relates to the field of construction engineering technology, specifically to a device for recycling and reprocessing construction waste. Background Technology

[0002] Construction waste refers to waste materials generated during the construction, renovation, expansion, decoration, or demolition of buildings, structures, roads, bridges, etc., mainly including solid waste such as waste concrete, waste bricks and tiles, waste mortar, waste metal, waste wood, waste plastic, waste glass, and slag. Among these, concrete fragments containing reinforcing steel bars are typical examples of construction waste, characterized by their large volume, high recycling value, and complex processing technology. The fundamental reason for recycling construction waste lies in its enormous environmental pressure and resource waste problem: on the one hand, traditional landfill or dumping methods occupy a large amount of valuable land resources, damage the ecological environment, and generate dust pollution and water and soil pollution risks; on the other hand, construction waste itself contains considerable renewable resource value, especially its aggregates and metals, and failure to recycle them means the continuous consumption of natural mineral resources and the waste of energy. The core significance of recycling construction waste lies in promoting the development of a circular economy and achieving a win-win goal of resource conservation, environmental protection, and sustainable development. Its beneficial effects are mainly reflected in: significantly reducing reliance on the mining of non-renewable mineral resources such as natural sand and gravel, protecting the ecology of natural mountains and riverbeds; drastically reducing the amount of construction waste landfilled, saving land resources, and alleviating the environmental pressure on landfills; reducing energy consumption and carbon emissions from the production of new materials and the transportation and disposal of waste, helping to achieve the "dual carbon" goal; at the same time, it can also create economic value, reduce the production cost of building materials, cultivate emerging environmental protection industries, and create employment opportunities. In summary, construction waste recycling, especially the efficient recycling of reinforced concrete, is a key measure to achieve efficient resource recycling, reduce environmental burden, and promote the green and low-carbon transformation of the construction industry, with far-reaching resource, environmental, economic, and social benefits.

[0003] Existing crushing equipment mostly uses a single crushing method, which is difficult to effectively separate steel bars and concrete, resulting in low resource recovery rates, high energy consumption, and low processing efficiency. Therefore, there is a need for a recycling and reprocessing device for construction waste. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a recycling and reprocessing device for construction waste, which solves the problems of existing crushing equipment that mostly adopt a single crushing method, making it difficult to effectively separate steel bars and concrete, resulting in low resource recovery rates, high energy consumption, and low processing efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A device for recycling and reprocessing construction waste, comprising: The frame has a material leakage frame for supporting construction waste fixedly connected to its middle bottom. The frame crushes the construction waste once through the crushing roller group set at its front end, causing cracks on the surface of the reinforced concrete slab type construction waste, and then conveys the construction waste to the top side of the material leakage frame. The frame is fixedly connected to the top of the middle section of the frame. The frame has multiple internal cavities. Lifting components are installed inside the internal cavities to lift multiple impact blocks at the bottom of the frame. After the impact blocks are lifted to a certain height, they are released by the lifting components and thrown down. This impact force shakes off the concrete fragments on the construction waste. A power component is connected between the lifting components and the crushing roller group, and the power is transmitted through the meshing of a gear three. One side of the gear three is rotatably connected to the frame. The sliding seat comprises two sliding seats, which are fixedly connected to the left and right sides of the frame respectively. Each adjacent side of the sliding seat has a horizontally sliding extrusion head. The opposite sides of the two extrusion heads penetrate the outer wall of the sliding seat, and the bottom of the opposite sides of the two extrusion heads is equipped with an offset component to push the two extrusion heads together, causing the cracked construction waste to bulge from both sides towards the center, thereby improving the effect of the impact block falling and crushing the concrete. The offset component is connected to the power component through a connecting rod.

[0006] Preferably, the crushing roller assembly includes a convex extrusion roller and a concave extrusion roller rotatably connected to the front end of the frame. Gears two are fixedly connected to both sides of the convex extrusion roller, and gears two and three mesh with each other. One side of the concave extrusion roller is fixedly connected to a gear one that meshes with one of the gears two. A motor as a drive source is installed on the other side of the concave extrusion roller.

[0007] Preferably, the outer contours of the convex extrusion roller and the concave extrusion roller are matched to each other, causing cracks to occur in the middle of the extruded engineering waste.

[0008] Preferably, the power assembly includes a power arm fixedly connected to the other side of the gear three. One end of the power arm is fitted with a guide frame. The bottom end of the guide frame slides horizontally with the frame. The rear end of the guide frame is rotatably connected to a connecting rod one. The rear end of the connecting rod one is rotatably connected to a lifting frame. The lifting frame slides vertically on the outer wall of the frame. The front end of the lifting frame is rotatably connected to the top end of the connecting rod two.

[0009] Preferably, the lifting assembly includes a connecting frame that is vertically slidably connected inside the inner cavity. The left and right sides of the connecting frame are fixedly connected to the inner wall of the lifting frame. The front and rear sides of the connecting frame are rotatably connected to clamping claws. The adjacent sides of the clamping claws on both sides are connected by a spring. The top side of the impact block is fixedly connected to a chuck. The bottom ends of the adjacent sides of the clamping claws on both sides are engaged with the outer wall of the chuck. A guide groove is provided at the top of the inner cavity.

[0010] Preferably, the offset assembly includes two sliding frames that slide horizontally on both sides of the frame, with a connecting rod three rotatably connected to the top side of the sliding frame, the bottom ends of the two extrusion heads on opposite sides being rotatably connected to the top side of the connecting rod three, and the front end of the sliding frame being rotatably connected to the bottom end of the connecting rod two.

[0011] Preferably, the bottom ends of the chuck and the gripping claws are both arc-shaped, so that the bottom ends of the gripping claws on both sides open when the gripping claws on both sides descend and abut against the chuck.

[0012] Preferably, a pulley frame is installed on the front side of the frame to assist in pushing the heavy construction waste for crushing.

[0013] Preferably, the top ends of the two extrusion heads on opposite sides are connected to the sliding seat via spring telescopic rods to assist the extrusion heads in resetting after displacement.

[0014] Preferably, the bottom side of the material leakage frame is provided with reinforcing pile feet to withstand the impact of the impact block falling down.

[0015] Working principle: First, the concrete slab-shaped construction waste carrying reinforcing steel bars is fed between the convex and concave extrusion rollers. When the concave extrusion roller, driven by a motor, rotates, it meshes with gear two (integrated with the convex extrusion roller) via gear one connected to it. This causes the convex extrusion roller to rotate in the opposite direction to the concave extrusion roller, resulting in the convex and concave extrusion rollers entraining the construction waste. The waste is squeezed along its contour, causing cracks to appear on its surface. The cracked waste is placed on the top side of the material leakage frame. Gear two then meshes with gear three, causing the gears to rotate... The third drive arm, connected to it, moves the guide frame. The displaced guide frame pushes and pulls the first connecting rod, causing the first connecting rod to lift and pull down the lifting frame, causing the lifting frame to move up and down. The downward-moving lifting frame approaches the impact block, causing the structure connected to the lifting frame, including the connecting frame, to move downward until the bottom ends of the two adjacent gripping claws abut against the arc-shaped structure on the top side of the chuck. This causes the chuck to apply force to the bottom ends of the two gripping claws, opening them and compressing the spring, until the top of the chuck is engaged between the bottom ends of the two gripping claws. After the contact is lost, the two gripping claws return to their original position under the action of the spring. The clamping mechanism grips the chuck, simultaneously clamping the impact block integrated with the chuck. The connecting frame then rises with the lifting frame, synchronously pulling on connecting rod two. Connecting rod two then moves the sliding frame at the bottom backward, causing the sliding frame to pull on connecting rod three. Connecting rod three then drives the extrusion heads to move, causing the extrusion heads on both sides to extrude from both sides towards the center of the cracked construction waste, causing the waste to bulge in the middle. At this point, the connecting frame moves to the top of the inner cavity, causing the clamping claws to abut against the curved inner wall of the guide groove, thus closing the tips of adjacent clamping claws. The bottom end is rotated to release the clamping head, causing the impact block connected to the clamping head to fall rapidly under the influence of gravity, thus contacting the construction waste and impacting it along the protrusions of the waste, increasing the impact force and causing the waste to crack further. The above process is then repeated. After the lifting frame rises again, the extrusion head will be reset with the assistance of the spring telescopic rod. Finally, under multiple impacts, the concrete structure of the construction waste is crushed and falls off, falling out of the hollow material leakage frame, thus exposing the steel bars inside, allowing the steel bars to be recycled, and completing the processing of the construction waste.

[0016] This invention provides a device for recycling and reprocessing construction waste. It has the following beneficial effects: 1. This invention can significantly improve the separation effect of steel bars and concrete through a graded crushing method. By using the synergistic effect of crushing roller group and impact block, the convex and concave extrusion rollers are used to squeeze the reinforced concrete slab type engineering waste, causing cracks to appear on its surface. Then, the extrusion head bulges the two sides of the cracked engineering waste towards the middle to form a raised structure. Finally, the impact block falls and impacts the engineering waste, precisely crushing it along the raised parts, causing the concrete structure to be crushed and fall off, thereby effectively exposing the steel bars inside.

[0017] 2. This invention, through synchronized and coordinated movement, can complete multiple processes such as clamping, lifting, falling impact, and squeezing and closing. The integrated design simplifies the equipment structure, reduces manufacturing costs and operating energy consumption, and significantly improves the processing efficiency of construction waste. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention; Figure 2 This is a side view of the present invention; Figure 3 This is a schematic diagram showing the positions of the rear material leakage frame and the impact block of the present invention; Figure 4 This is a schematic diagram of the internal structure of the frame of the present invention; Figure 5 This is a schematic diagram of the connection structure of the clamping claw of the present invention; Figure 6 This is a schematic diagram of the connection structure of gear three of the present invention; Figure 7 This is a schematic diagram of the extrusion head of the present invention; Figure 8 This is a schematic diagram of the connection structure of the connecting rod three of the present invention.

[0019] The components are as follows: 1. Frame; 2. Convex extrusion roller; 3. Concave extrusion roller; 4. Gear 1; 5. Gear 2; 6. Frame body; 7. Impact block; 8. Material leakage frame; 9. Lifting frame; 10. Connecting frame; 11. Clamping claw; 12. Chuck; 13. Gear 3; 14. Power arm; 15. Connecting rod 1; 16. Connecting rod 2; 17. Sliding seat; 18. Extrusion head; 19. Sliding frame; 20. Connecting rod 3; 21. Pulley frame; 22. Guide groove; 23. Guide frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example:

[0022] This invention provides a device for recycling and reprocessing construction waste, comprising: Please see the appendix Figure 1 -Appendix Figure 3The frame 1 has a material leakage frame 8 fixedly connected to the bottom of the middle section for supporting construction waste. The frame 1 crushes the construction waste once through the crushing roller group set at its front end, causing cracks on the surface of the reinforced concrete slab type construction waste, and conveys the construction waste to the top side of the material leakage frame 8. The crushing roller group includes a convex extrusion roller 2 and a concave extrusion roller 3 rotatably connected to the front end of the frame 1. Gear 2 5 is fixedly connected to both sides of the convex extrusion roller 2, and gear 2 5 meshes with gear 3 13. Gear 1 4 is fixedly connected to one side of the concave extrusion roller 3 and meshes with one of the gears 2 5. A motor as a drive source is installed on the other side of the concave extrusion roller 3. The outer contours of the convex extrusion roller 2 and the concave extrusion roller 3 fit each other, causing cracks to occur in the middle of the crushed construction waste. Specifically, when the concave extrusion roller 3 driven by the motor rotates, it will mesh with the gear 2 5 which is integrated with the convex extrusion roller 2 through the gear 1 4 connected to it. This causes the convex extrusion roller 2 to rotate in the opposite direction to the concave extrusion roller 3 in conjunction with the gear 2 5. This allows the convex extrusion roller 2 and the concave extrusion roller 3 to roll up the construction waste and squeeze it through its contour, causing cracks to appear on its surface. The cracked construction waste is then placed on the top side of the leakage frame 8.

[0023] Please see the appendix Figure 4 -Appendix Figure 6 The frame 6 is fixedly connected to the top of the middle section of the frame 1. The frame 6 has multiple internal cavities, each housing a lifting assembly for lifting multiple impact blocks 7 at the bottom of the frame 6. These impact blocks 7 are released by the lifting assembly after being lifted to a certain height, causing them to fall and dislodging concrete fragments from the construction waste using impact force. A power assembly connects the lifting assembly to the crushing roller assembly, transmitting power through gear 3 13. One side of gear 3 13 is rotatably connected to the frame 1. The power assembly includes a power arm 14 fixedly connected to the other side of gear 3 13. A guide frame 23 is fitted onto one end of the power arm 14, and the bottom end of the guide frame 23 slides horizontally with the frame 1. A connecting rod 15 is rotatably connected to the rear end of the guide frame 23. The rear end of the first connecting rod 15 is rotatably connected to the lifting frame 9, which slides vertically on the outer wall of the frame 6. The front end of the lifting frame 9 is rotatably connected to the top end of the second connecting rod 16. The lifting assembly includes a connecting frame 10 that slides vertically inside the cavity. Both sides of the connecting frame 10 are fixedly connected to the inner wall of the lifting frame 9. Both the front and rear sides of the connecting frame 10 are rotatably connected to clamping claws 11. The adjacent sides of the clamping claws 11 are connected by a spring. The top side of the impact block 7 is fixedly connected to a chuck 12. The bottom ends of the adjacent sides of the clamping claws 11 are engaged on the outer wall of the chuck 12. A guide groove 22 is provided at the top end of the cavity. The bottom ends of the chuck 12 and the clamping claws 11 are arc-shaped so that the bottom ends of the clamping claws 11 open when they descend and abut against the chuck 12. Specifically, the rotating gear 25 meshes with gear 313 to rotate. The rotating gear 313 drives the connected power arm 14 to move the guide frame 23. The displaced guide frame 23 pushes and pulls the connecting rod 15, causing the connecting rod 15 to lift and pull down the lifting frame 9. The downwardly displaced lifting frame 9 approaches the impact block 7, causing the structure connected to the lifting frame 9, including the connecting frame 10, to move downward until the bottom ends of the two adjacent clamping claws 11 abut against the arc-shaped structure on the top side of the chuck 12. This causes the chuck 12 to apply force to the bottom ends of the two clamping claws 11, causing them to open and compress the spring, until the top of the chuck 12 is engaged between the bottom ends of the two clamping claws 11, losing its resistance. Subsequently, the two clamping claws 11 are reset under the action of the spring, clamping the chuck 12, so that the impact block 7 integrated with the chuck 12 is clamped synchronously. Then the connecting frame 10 rises with the lifting frame 9 until the connecting frame 10 is moved to the top of the inner cavity, and the clamping claws 11 abut against the inner wall of the guide groove 22, so that the tops of the two adjacent clamping claws 11 close together, and the bottom ends rotate to release the clamped chuck 12. The impact block 7 connected to the chuck 12 falls rapidly under the influence of gravity, thus contacting the construction waste and impacting it along the protrusions of the construction waste, increasing the impact force, and thus causing the construction waste to crack further.

[0024] Please see the appendix Figure 1 Appendix Figure 7 and attached Figure 8 There are two sliding seats 17, which are fixedly connected to the left and right sides of the frame 1 respectively. Each adjacent side of the sliding seat 17 has a horizontally sliding extrusion head 18. The two extrusion heads 18 are connected to the outer wall of the sliding seat 17 on the opposite side. The bottom of the opposite side of the two extrusion heads 18 is equipped with an offset component to push the two extrusion heads 18 together, so that the two sides of the cracked construction waste bulge towards the middle, thereby improving the effect of the impact block 7 falling and crushing the concrete. The offset component is connected to the power component through a connecting rod 2 16. The top of the opposite side of the two extrusion heads 18 is connected to the sliding seat 17 through a spring telescopic rod to assist the extrusion head 18 in resetting after displacement. The offset component includes two sliding frames 19 that are horizontally slidable on both sides of the frame 1 respectively. The top side of the sliding frame 19 is rotatably connected to a connecting rod 3 20. The bottom of the opposite side of the two extrusion heads 18 is rotatably connected to the top side of the connecting rod 3 20. The front end of the sliding frame 19 is rotatably connected to the bottom end of the connecting rod 2 16. Specifically, the rising connecting frame 10 synchronously pulls the connecting rod 2 16, causing the connecting rod 2 16 to pull the sliding frame 19 at the bottom to move backward, so that the sliding frame 19 pulls the connecting rod 3 20, causing the connecting rod 3 20 to drive the extrusion head 18 to move, so that the extrusion heads 18 on both sides extrude the cracked engineering waste from both sides to the middle, and cause the middle end of the engineering waste to bulge. After the lifting frame 9 rises again, the extrusion head 18 will be reset with the help of the spring telescopic rod.

[0025] Please see the appendix Figure 1 -Appendix Figure 3 The front side of the frame 1 is equipped with a pulley frame 21 to assist in pushing the heavy construction waste for crushing. The bottom side of the material leakage frame 8 is equipped with reinforcing pile feet to withstand the impact of the impact block 7 falling down.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for recycling and reprocessing construction waste, characterized in that, include: The frame (1) has a material leakage frame (8) for supporting construction waste fixedly connected to the bottom of the middle end. The frame (1) crushes the construction waste once through the crushing roller group set at its front end, causing the surface of the reinforced concrete slab type construction waste to crack, and transporting the construction waste to the top side of the material leakage frame (8). The frame (6) is fixedly connected to the top of the middle end of the frame (1). The frame (6) has multiple inner cavities. The inner cavity is equipped with a lifting component to lift multiple impact blocks (7) at the bottom of the frame (6) and release the multiple impact blocks (7) after they are lifted to a certain height, thereby throwing them down. The impact force shakes the concrete fragments on the construction waste down. The lifting component is connected to the crushing roller group with a power component and the power is transmitted through gear three (13). One side of gear three (13) is rotatably connected to the frame (1). There are two sliding seats (17), which are fixedly connected to the left and right sides of the frame (1). Each adjacent side of the sliding seat (17) has a horizontally sliding extrusion head (18). The two extrusion heads (18) are separated by a side that penetrates the outer wall of the sliding seat (17). The bottom of the two extrusion heads (18) is equipped with an offset component to push the two extrusion heads (18) together, so that the two sides of the cracked engineering waste bulge towards the middle, thereby improving the effect of the impact block (7) falling and crushing the concrete. The offset component is connected to the power component by a connecting rod (16).

2. The recycling and reprocessing device for construction waste according to claim 1, characterized in that, The crushing roller assembly includes a convex extrusion roller (2) and a concave extrusion roller (3) rotatably connected to the front end of the frame (1). Gears 2 (5) are fixedly connected to both the left and right sides of the convex extrusion roller (2). Gears 2 (5) mesh with gears 3 (13). Gear 1 (4) meshes with one of the gears 2 (5) on one side of the concave extrusion roller (3). A motor as a drive source is installed on the other side of the concave extrusion roller (3).

3. The recycling and reprocessing device for construction waste according to claim 2, characterized in that, The outer contours of the convex extrusion roller (2) and the concave extrusion roller (3) fit together, causing cracks to occur in the middle of the extruded engineering waste.

4. The recycling and reprocessing device for construction waste according to claim 1, characterized in that, The power assembly includes a power arm (14) fixedly connected to the other side of the gear three (13). One end of the power arm (14) is fitted with a guide frame (23). The bottom end of the guide frame (23) slides horizontally with the frame (1). The rear end of the guide frame (23) is rotatably connected to a connecting rod one (15). The rear end of the connecting rod one (15) is rotatably connected to a lifting frame (9). The lifting frame (9) slides vertically on the outer wall of the frame (6). The front end of the lifting frame (9) is rotatably connected to the top end of the connecting rod two (16).

5. A recycling and reprocessing device for construction waste according to claim 4, characterized in that, The lifting assembly includes a connecting frame (10) that is vertically slidably connected inside the inner cavity. The left and right sides of the connecting frame (10) are fixedly connected to the inner wall of the lifting frame (9). The front and rear sides of the connecting frame (10) are rotatably connected to clamping claws (11). The adjacent sides of the clamping claws (11) on both sides are connected by a spring. The top side of the impact block (7) is fixedly connected to a chuck (12). The bottom ends of the adjacent sides of the clamping claws (11) on both sides are engaged on the outer wall of the chuck (12). A guide groove (22) is provided at the top of the inner cavity.

6. A recycling and reprocessing device for construction waste according to claim 1, characterized in that, The offset assembly includes two sliding frames (19) that slide horizontally on both sides of the frame (1). The top side of the sliding frame (19) is rotatably connected to a connecting rod three (20). The bottom ends of the two extrusion heads (18) on opposite sides are rotatably connected to the top side of the connecting rod three (20). The front end of the sliding frame (19) is rotatably connected to the bottom end of the connecting rod two (16).

7. A recycling and reprocessing device for construction waste according to claim 5, characterized in that, The bottom ends of the chuck (12) and the gripping claws (11) are both arc-shaped, so that the bottom ends of the gripping claws (11) on both sides open when they descend and abut against the chuck (12).

8. A recycling and reprocessing device for construction waste according to claim 1, characterized in that, The front side of the frame (1) is equipped with a pulley frame (21) to assist in pushing the heavy construction waste for crushing.

9. A recycling and reprocessing device for construction waste according to claim 1, characterized in that, The top ends of the two extrusion heads (18) on opposite sides are connected to the sliding seat (17) by spring telescopic rods to assist the extrusion heads (18) in resetting after displacement.

10. A recycling and reprocessing device for construction waste according to claim 1, characterized in that, The bottom side of the material leakage frame (8) is provided with reinforcing pile feet to withstand the impact of the impact block (7) falling down.

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