Construction waste recycling and separating equipment
By introducing an electromagnetic adsorption plate, a scraper pushing mechanism, and an inner cylinder fine filter cotton sleeve structure into the construction waste separation equipment, combined with fan exhaust, the problems of dust pollution and shutdown due to magnet cleaning are solved, achieving efficient construction waste separation and clean production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NANJING TECH UNIV
- Filing Date
- 2025-04-14
- Publication Date
- 2026-04-28
AI Technical Summary
Existing construction waste separation equipment is prone to dust pollution when removing cloth strips and plastic film, and magnetic cleaning requires machine shutdown, which affects work efficiency.
It adopts an electromagnetic adsorption plate, a scraper pushing mechanism, and an inner cylinder fine filter cotton sleeve structure, combined with a fan to extract air, to separate metal, light fragments and dust, avoid dust pollution, and automatically clean the metal on the electromagnetic adsorption plate through the scraper pushing mechanism.
It effectively prevents dust pollution, keeps the working environment clean, improves work efficiency, and avoids the need to stop the machine to clean the magnets.
Smart Images

Figure CN224167580U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of construction waste treatment technology, and in particular to a construction waste recycling and separation device. Background Technology
[0002] A large portion of construction waste can be used as raw materials for recycled materials. Due to its complex composition, construction waste needs to be crushed and separated during actual processing.
[0003] The technical solution disclosed in Chinese Patent No. CN219291524U uses a blower to blow out strips of cloth or plastic film from construction waste, thereby removing these materials. It also enables the removal of magnetic objects from the construction waste using a magnet, and can promptly remove objects adsorbed onto the magnet surface, facilitating the absorption of magnetic materials within the construction waste. This invention can also pulverize construction waste into coarse and fine powders, resulting in uniform block-shaped particles that are easy to separate and recycle.
[0004] However, the device still has shortcomings: when the device blows the cloth strips or plastic film out of the machine box by the fan, it is very easy to blow out dust along with it, which will cause pollution of the operating environment. In addition, the plastic film and cloth strips are blown out with the dust, and it is impossible to collect the cloth strips and plastic film directly. At the same time, the device requires the machine to be stopped to clean the magnets, which affects the work efficiency. Utility Model Content
[0005] The purpose of this utility model is to address the problems existing in the background technology by proposing a construction waste recycling and separation device.
[0006] The technical solution of this utility model is: a construction waste recycling and separation device, including a casing, a crushing component is installed inside the casing, guide plates A and C are staggered below the crushing component inside the casing, and a partition is installed inside the casing to form compartment A and compartment B inside the casing;
[0007] Guide plate B is installed inside the chassis and tilted towards guide plate C. An electromagnetic adsorption plate is installed at the bottom of guide plate B.
[0008] The scraper pushing mechanism is installed inside the chassis. When the scraper conveying assembly is in operation, it scrapes the metal on the surface of the electromagnetic adsorption plate into compartment A.
[0009] The separation box is installed on the machine casing. The input end of the separation box is inserted into the machine casing and located below the guide plate C. The separation box is equipped with discharge pipe A and discharge pipe B.
[0010] The inner cylinder is set inside the separator. An air inlet communicating with the interior of the separator is set on the inner cylinder. A fine filter cotton sleeve rotatably connected to the outer side of the inner cylinder is fitted. Several scrapers B are set on the arc surface of the fine filter cotton sleeve, and a motor B driving the fine filter cotton sleeve to rotate is set on the separator.
[0011] And the fan, which is mounted on the casing, with its input end connected to the inside of the inner cylinder.
[0012] Preferably, the chassis is provided with a discharge port A communicating with compartment A, and the chassis is provided with a discharge port B communicating with compartment B. A discharge hopper A is fitted on the outside of the discharge port A, and a discharge hopper B is fitted on the outside of the discharge port B. The bottom surfaces of compartment A and compartment B are inclined towards the discharge port A and discharge port B, respectively.
[0013] Preferably, the casing is provided with a discharge port C that communicates with its interior. The discharge port C is located below the guide plate C. The inner wall of the casing is provided with a guide plate D that is parallel to the guide plate C below the discharge port C. The separation box is provided with a guide tube that communicates with its interior. The input end of the guide tube covers the outside of the discharge port C.
[0014] Preferably, the chassis is provided with a feed hopper that communicates with its interior, and the crushing component is located below the opening of the feed hopper.
[0015] Preferably, the crushing assembly includes crushing rollers and motor A. The two crushing rollers are arranged opposite to each other in the housing and are rotatably connected thereto. Each of the roller shafts of the two crushing rollers is provided with a gear, and the two gears mesh. The body of motor A is connected to the housing, and the output end of motor A is connected to the roller shaft of one of the crushing rollers.
[0016] Preferably, the scraper pushing mechanism includes a toothed belt, scraper A, pulleys, and a transmission assembly. The transmission assembly includes a driving pulley, a driven pulley, and a belt. The pulleys are symmetrically arranged at both ends of the guide plate B, and the two pulleys are connected by a toothed belt drive. The scraper A is equidistantly arranged on the toothed belt, and the scraper A is slidably connected to the surfaces of the guide plate B and the electromagnetic adsorption plate. The driving pulley is coaxially connected to the roller shaft of one of the crushing rollers, and the driven pulley is coaxially connected to the central shaft of one of the pulleys. The driving pulley and the driven pulley are connected by a belt drive.
[0017] Preferably, an arc-shaped groove is provided inside the separation box, and scraper B is slidably connected to the inner wall of the arc-shaped groove. The air inlet on the inner cylinder is connected to the opening of the arc-shaped groove. A dust outlet and a light material outlet connected to the arc-shaped groove are sequentially provided on the separation box along the tightening direction of scraper B. A coarse filter screen is provided inside the dust outlet. The discharge pipe A covers the outside of the dust outlet, and the discharge pipe B covers the outside of the light material outlet.
[0018] Compared with the prior art, the present invention has the following beneficial technical effects:
[0019] By installing an electromagnetic adsorption plate flush with the bottom of guide plate B, and a scraper pushing mechanism consisting of a toothed belt, scraper, pulley, and transmission components, the metal adsorbed on the surface of the electromagnetic adsorption plate is easily scraped to the top of chamber A by the scraper, and the metal falls into chamber A due to the loss of magnetic attraction. This structure effectively maintains the adsorption force on the surface of the electromagnetic adsorption plate, eliminating the need to stop the machine for cleaning. By setting up a cooperative structure of inner cylinder, fine filter cotton sleeve, and scraper B in the separation box, and installing a fan to draw air from the inner cylinder, the air in the machine box flows towards the discharge port C, thereby adsorbing light fragments and dust into the separation box, and separating them one by one by the scraper, avoiding the generation of dust in the working environment. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model;
[0021] Figure 2 This is a schematic diagram of the internal structure of the chassis;
[0022] Figure 3 A schematic diagram showing the connection structure between the guide plate, the scraper pushing mechanism, and the crushing roller assembly;
[0023] Figure 4 A schematic diagram of the connection structure of the various components on the separation box;
[0024] Figure 5 This is a schematic diagram of the separation box.
[0025] Figure 6 This is a schematic diagram of the inner cylinder.
[0026] Reference numerals: 1. Chassis; 101. Discharge port A; 102. Discharge port B; 103. Discharge port C; 2. Feed hopper; 3. Crushing assembly; 31. Crushing roller; 32. Gear; 33. Motor A; 4. Guide plate A; 5. Guide plate B; 6. Electromagnetic adsorption plate; 7. Toothed belt; 8. Scraper A; 9. Pulley; 10. Transmission assembly; 11. Guide plate C; 12. Guide plate D; 13. Baffle plate; 14. Discharge hopper A; 15. Discharge hopper B; 16. Separation box; 161. Guide pipe; 162. Dust outlet; 163. Light crushed material outlet; 17. Discharge pipe A; 171. Coarse filter screen; 18. Discharge pipe B; 19. Inner cylinder; 191. Air inlet; 20. Fan; 21. Exhaust pipe; 22. Fine filter cotton sleeve; 23. Scraper B; 24. Motor B. Detailed Implementation
[0027] Example 1
[0028] like Figures 1-6As shown, this utility model proposes a construction waste recycling and separation device, including a casing 1, a guide plate B5, a scraper pushing mechanism, a separation box 16, an inner cylinder 19, and a blower 20. A feed hopper 2 communicating with the interior of the casing 1 is provided on the casing 1. A crushing assembly 3 is installed inside the casing 1, located below the opening of the feed hopper 2. The crushing assembly includes crushing rollers 31 and a motor A33. Two crushing rollers 31 are arranged opposite each other inside the casing 1 and rotatably connected to it. Each roller shaft end of the two crushing rollers 31 is provided with a gear 32, and the two gears 32 mesh. The body of the motor A33 is connected to the casing 1, and the output end of the motor A33 is connected to the roller shaft of one of the crushing rollers 31. Guide plates A4 and C11 are staggered below the crushing assembly 3 inside the casing 1. Guide plates A4 extend towards the higher side of guide plates C11, and a partition 13 is provided inside the casing 1 to form compartments A and B within the casing 1. The casing 1 has a discharge port A101 communicating with compartment A and a discharge port B102 communicating with compartment B. A discharge hopper A14 is fitted around the discharge port A101 on the casing 1, and a discharge hopper B15 is fitted around the discharge port B102 on the casing 1. The bottom surfaces of compartments A and B are inclined towards discharge ports A101 and B102, respectively. A discharge port C103 communicating with the interior of the casing 1 is located below guide plate C11. Guide plate B5 is located inside the casing 1 and inclined towards guide plate C11. An electromagnetic adsorption plate 6 is located at the bottom of guide plate B5, with one end above guide plate C11 and the other end located on the side of partition 13 away from guide plate C11. The scraper pushing mechanism includes a toothed belt 7, a scraper A8, a pulley 9, and a transmission assembly 10. The transmission assembly includes a driving pulley, a driven pulley, and a belt. Belt pulleys 9 are symmetrically arranged at both ends of guide plate B5, and the two pulleys 9 are connected by toothed belt 7. Scrapers A8 are equidistantly arranged on toothed belt 7, and scraper A8 is slidably connected to the surfaces of guide plate B5 and electromagnetic adsorption plate 6. The driving wheel is coaxially connected to the roller shaft of one of the crushing rollers 31, and the driven wheel is coaxially connected to the central shaft of one of the pulleys 9. The driving wheel and the driven wheel are connected by belt drive. In operation, the scraper conveying assembly scrapes the metal on the surface of electromagnetic adsorption plate 6 to chamber A. Separation box 16 is arranged on the casing 1. The separation box 16 is provided with guide pipe 161 communicating with its interior. The input end of guide pipe 161 covers the outside of discharge port C103. The separation box 16 is provided with discharge pipe A17 and discharge pipe B18. An arc-shaped groove is provided inside the separation box 16. The scraper B23 is slidably connected to the inner wall of the arc-shaped groove. The air inlet 191 on the inner cylinder 19 is connected to the opening of the arc-shaped groove. A dust outlet 162 and a light material outlet 163, which are connected to the arc-shaped groove, are sequentially arranged on the separation box 16 along the tightening direction of the scraper B23. A coarse filter screen 171 is installed inside the dust outlet 162. The discharge pipe A17 covers the outside of the dust outlet 162, and the discharge pipe B18 covers the outside of the light material outlet 163.An inner cylinder 19 is disposed inside a separation chamber 16. An air inlet 191 communicating with the interior of the separation chamber 16 is provided on the inner cylinder 19. A fine filter cotton sleeve 22 is fitted over the inner cylinder 19 and rotatably connected thereto. Several scrapers B23 are provided on the arc surface of the fine filter cotton sleeve 22, and a motor B24 driving the fine filter cotton sleeve 22 to rotate is provided on the separation chamber 16. A fan 20 is disposed on a casing 1. An exhaust pipe 21 is provided at the input end of the fan 20, and the other end of the exhaust pipe 21 is inserted into the inner cylinder 19 and communicates with its interior.
[0029] In this embodiment, construction waste is fed into the feed hopper 2. The crushing assembly 3, electromagnetic adsorption plate 6, blower 20, and motor B24 are activated. The crushing roller 31 crushes the construction waste. The fragments descend and slide down the inclined surface of guide plate C11 under the guidance of guide plate A4. Non-magnetic fragments fall directly into chamber B, while magnetic fragments are adsorbed onto electromagnetic adsorption plate 6. As the crushing roller 31 rotates, it drives pulley 9 to rotate, which in turn drives toothed belt 7 to run. Toothed belt 7 drives scraper 8 to circulate and scrape on electromagnetic adsorption plate 6, causing the adsorbed metal to be scraped above the opening of chamber A. When the metal detaches from electromagnetic adsorption plate 6, it falls directly into chamber A and is discharged through discharge hopper A14. The fragments entering chamber B are carried by the airflow, while lighter dust and plastic pieces are discharged along the discharge port C103. The fragments enter the separation box 16 through the guide tube 161. The fragments are adsorbed between two adjacent scrapers B23 along the opening of the arc groove. As the motor B24 drives the fine filter cotton sleeve 22 to rotate, it drives the scraper B23 to rotate and change position. When the two scrapers containing fragments and dust are removed from the air inlet 191, the airflow no longer generates suction. When the dust and fragments are pushed to the dust outlet 162, the dust is discharged along the discharge pipe A17, while the plastic fragments continue to move with the scraper B23. When the fragments move to the light fragments outlet 163, the plastic fragments are automatically discharged along the discharge pipe B18. During the suction process, the airflow cannot enter the separation box 16 through the openings of the discharge pipes A17 and B18 due to the obstruction of the scraper B23, effectively ensuring the negative pressure suction at the opening of the discharge port C103.
[0030] Example 2
[0031] like Figure 2 As shown, the construction waste recycling and separation equipment proposed in this utility model, compared with the first embodiment, has a guide plate D12 on the inner wall of the casing 1 below the discharge port C103, which is parallel to the guide plate C11. Both the guide plate C11 and the guide plate D12 are inclined towards the partition plate 13.
[0032] In this embodiment, by setting a guide plate C11, the cross-sectional area of the airflow channel is reduced, so that light plastics and dust enter the discharge port C103 along the gap between the guide plate C11 and the guide plate D12. In this process, even if a small portion of heavier debris is attracted by the airflow and falls on the guide plate D12, it will slide down the slope of the guide plate D12 and enter the chamber B.
[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.
Claims
1. A construction waste recycling and separation device, characterized in that, include The chassis (1) is equipped with a crushing component (3). Guide plates A (4) and C (11) are staggered below the crushing component (3) in the chassis (1). A partition (13) is provided in the chassis (1) to form compartment A and compartment B in the chassis (1). Guide plate B (5) is set inside the chassis (1) and tilted toward guide plate C (11). An electromagnetic adsorption plate (6) is set at the bottom of guide plate B (5). The scraper pushing mechanism is installed inside the chassis (1). When the scraper conveying assembly is in operation, it scrapes the metal on the surface of the electromagnetic adsorption plate (6) to the compartment A. Separation box (16) is set on the machine box (1). The input end of the separation box (16) is inserted into the machine box (1) and located below the guide plate C (11). The separation box (16) is equipped with discharge pipe A (17) and discharge pipe B (18). The inner cylinder (19) is set inside the separator (16). An air inlet (191) communicating with the interior of the separator (16) is provided on the inner cylinder (19). A fine filter cotton sleeve (22) is fitted on the outside of the inner cylinder (19) and rotatedly connected thereto. Several scrapers B (23) are provided on the arc surface of the fine filter cotton sleeve (22). A motor B (24) driving the fine filter cotton sleeve (22) to rotate is provided on the separator (16). And a fan (20), which is installed on the casing (1), and the input end of the fan (20) is connected to the inside of the inner cylinder (19).
2. The construction waste recycling and separation equipment according to claim 1, characterized in that, The machine (1) is provided with a discharge port A (101) communicating with compartment A, and the machine (1) is provided with a discharge port B (102) communicating with compartment B. A discharge hopper A (14) is fitted on the outside of the discharge port A (101) on the machine (1), and a discharge hopper B (15) is fitted on the outside of the discharge port B (102) on the machine (1). The bottom surfaces of compartment A and compartment B are inclined towards the discharge port A (101) and discharge port B (102) respectively.
3. The construction waste recycling and separation equipment according to claim 1, characterized in that, The machine casing (1) is provided with a discharge port C (103) communicating with its interior. The discharge port C (103) is located below the guide plate C (11). The inner wall of the machine casing (1) is provided with a guide plate D (12) parallel to the guide plate C (11) below the discharge port C (103). The separation box (16) is provided with a guide tube (161) communicating with its interior. The input end of the guide tube (161) covers the outside of the discharge port C (103).
4. The construction waste recycling and separation equipment according to claim 1, characterized in that, A feed hopper (2) is provided on the chassis (1) and communicates with its interior. The crushing component (3) is located below the opening of the feed hopper (2).
5. The construction waste recycling and separation equipment according to claim 1, characterized in that, The crushing assembly includes crushing rollers (31) and motor A (33). The two crushing rollers (31) are arranged opposite to each other in the housing (1) and are rotatably connected thereto. A gear (32) is provided at the end of the roller shaft of each of the two crushing rollers (31). The two gears (32) mesh. The body of motor A (33) is connected to the housing (1), and the output end of motor A (33) is connected to the roller shaft of one of the crushing rollers (31).
6. The construction waste recycling and separation equipment according to claim 5, characterized in that, The scraper pushing mechanism includes a toothed belt (7), a scraper A (8), a pulley (9), and a transmission assembly (10). The transmission assembly includes a drive wheel, a driven wheel, and a belt. The pulleys (9) are symmetrically arranged at both ends of the guide plate B (5), and the two pulleys (9) are connected by the toothed belt (7). The scraper A (8) is equidistantly arranged on the toothed belt (7), and the scraper A (8) is slidably connected to the surfaces of the guide plate B (5) and the electromagnetic adsorption plate (6). The drive wheel is coaxially connected to the roller shaft of one of the crushing rollers (31), and the driven wheel is coaxially connected to the central shaft of one of the pulleys (9). The belt drives the drive wheel and the driven wheel.
7. The construction waste recycling and separation equipment according to claim 1, characterized in that, An arc-shaped groove is provided inside the separation box (16). The scraper B (23) is slidably connected to the inner wall of the arc-shaped groove. The air inlet (191) on the inner cylinder (19) is connected to the opening of the arc-shaped groove. A dust outlet (162) and a light material outlet (163) connected to the arc-shaped groove are arranged sequentially on the separation box (16) along the tightening direction of the scraper B (23). A coarse filter screen (171) is provided inside the dust outlet (162). The discharge pipe A (17) covers the outside of the dust outlet (162), and the discharge pipe B (18) covers the outside of the light material outlet (163).
Citation Information
Patent Citations
Construction waste recycling and separating equipment
CN219291524U