A screening device for recycling construction waste
By designing a screening device for recycling and regeneration of construction waste, the impact of the rotating shaft driven by the motor and the eccentric block, combined with the multi-layer screen and crushing roller, the effective separation and recycling of construction waste is achieved, the problem of difficult separation of impurities in construction waste is solved, and the utilization rate and working efficiency of construction waste are improved.
Patent Information
- Application Number
- CN202421308737.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-11
- Publication Date
- 2025-04-08
- Estimated Expiration
- 2034-06-11
AI Technical Summary
Construction waste contains impurities such as steel, metal, waste wood, waste plastic, waste paper, etc., which are difficult to effectively separate, limiting its reuse and recycling rate.
A screening device for recycling and regeneration of construction waste is designed, including a support frame, a screening mechanism and a crushing mechanism. The screening mechanism drives the impact of the rotating shaft and the eccentric block through the first motor, vibrates the screening box, and uses a multi-layer screen to separate materials of different sizes. The crushing mechanism drives the crushing roller through the third motor to pre-crumble large concrete blocks and separate the steel bars from concrete.
Effective separation of construction waste is achieved, and steel bars and concrete blocks are separated separately, which is convenient for recycling and use in different aspects, improves the utilization rate of construction waste, and reduces manual operations and improves work efficiency through automated crushing and screening.
Smart Images
Figure CN222724425U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of construction waste recycling, in particular to a screening device for recycling construction waste. Background Art
[0002] Construction waste refers to the general term for slag, waste concrete, waste bricks and other wastes generated by people in the production activities of the construction industry such as demolition, construction, decoration, and repair. According to the source of generation, construction waste can be divided into engineering slag, decoration waste, demolition waste, engineering mud, etc.; according to the composition, construction waste can be divided into slag, concrete blocks, crushed stones, brick and tile fragments, waste mortar, mud, asphalt blocks, waste plastics, waste metals, waste bamboo and wood, etc. Construction waste refers to construction waste generated by human or natural reasons in the project, including waste slag, abandoned soil, silt and abandoned materials. These materials are of no help to the building itself, but they are substances generated in the process of construction and need to be treated accordingly, so as to achieve the ideal construction of the project. Because it is an overall process, the consideration of its links is more important. Construction waste contains impurities such as steel, metal, waste wood, waste plastic, and waste paper. If construction waste is to be reused, it must be effectively separated to facilitate recycling in different aspects, so as to form qualified reused construction aggregates and improve utilization rate. Utility Model Content
[0003] The main purpose of the utility model is to provide a screening device for recycling construction waste, which can effectively solve the problems in the background technology.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0005] A screening device for recycling construction waste comprises a support frame, a screening mechanism is arranged on the upper side of the support frame near one side, a crushing mechanism is arranged on the upper side of the support frame near the other side, the screening mechanism comprises a first motor fixedly arranged at the rear side of the support frame, a screening box is fixedly arranged on the upper side of the support frame near the front side of the first motor, a rotating shaft is fixedly connected to the front end of the first motor, two groups of eccentric blocks are fixedly arranged on the outer side of the rotating shaft, impact blocks are fixedly arranged at the lower end of the screening box corresponding to the positions of the two groups of eccentric blocks, sleeves are fixedly arranged at the four corners of the screening box corresponding to the upper side of the support frame, movable blocks are movably arranged on the inner sides of the four groups of sleeves, and complex A positioning spring is provided, a feed hopper is fixedly provided on the upper side of the screening box near one side, a first screen is fixedly provided on the inner side of the screening box near the upper side, a second screen is fixedly provided on the inner side of the screening box near the lower side, first conveying wheels are movably provided on the upper side of the screening box near both sides, first conveying belts are movably sleeved on the outer sides of two groups of the first conveying wheels, a second motor is fixedly installed on the rear side of the screening box near the upper side, a scraper is movably connected to one side of the first conveying belt, a first discharge port is fixedly provided on the front side of the screening box corresponding to the position of the first screen, a second discharge port is fixedly provided on the rear side of the screening box corresponding to the position of the second screen, and a third discharge port is fixedly provided on the other side of the screening box near the lower side.
[0006] Preferably, the screening box is arranged obliquely, an opening is provided on the other side of the screening box corresponding to the position of the first conveyor belt, and the rotating shaft is movably connected to the supporting frame.
[0007] Preferably, the movable block slides in a limited position on the inner side of the sleeve, and the mesh holes of the first screen are larger than the mesh holes of the second screen.
[0008] Preferably, the first conveyor belt is made of magnetic material, the rotating shaft of the second motor is fixedly connected to one group on one side of the two groups of first conveying wheels, and the scraper is fixedly connected to the screening box.
[0009] Preferably, the crushing mechanism includes a crushing barrel fixedly arranged on the upper side of the support frame near the other side, a third motor is fixedly installed on the rear side of the crushing barrel, a crushing roller is fixedly connected to the front side of the third motor, a feed port is fixedly arranged on the upper side of the crushing barrel, a discharge hopper is fixedly arranged on the lower side of the feed port, second conveying wheels are movably arranged on the front sides of the support frame and the screening mechanism, second conveying belts are movably sleeved on the outer sides of two groups of the second conveying wheels, synchronous wheels are fixedly connected to the opposite ends of the first conveying wheel and the second conveying wheel, and synchronous belts are movably arranged on the outer sides of the two groups of the synchronous wheels.
[0010] Preferably, the crushing drum and the crushing roller are movably connected, the discharge hopper is connected to the feed hopper, the second conveyor belt is inclined, and the second conveyor belt is located at the lower side of the first discharge port.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] 1. First, put the construction waste into the crushing drum from the feed port, and start the third motor to drive the crushing roller to rotate, so that the larger pieces of construction waste are crushed, the steel bars are separated from the concrete blocks, and discharged through the discharging hopper, so as to achieve pre-crushing of large concrete blocks, which is convenient for subsequent screening and different recycling of different materials.
[0013] 2. The vibration of the screening box drives the first and second screens to vibrate, so that the steel bars and larger concrete remain on the upper side of the first screen, the medium-sized soil blocks remain on the upper side of the second screen, and the fine soil residue reaches the bottom of the screening box and is discharged through the first discharge port, the second discharge port, and the third discharge port respectively, thereby achieving the effect of direct separation of construction waste, thereby facilitating recycling in different aspects and improving the utilization rate of construction waste.
[0014] 3. Start the second motor at the same time, and the two sets of synchronous wheels and synchronous belts will drive the two sets of second conveyor wheels and the second conveyor belts to rotate synchronously, so that the second conveyor belt can directly transport the larger materials discharged from the first discharge port back to the feed port for further crushing, so as to achieve no manual operation, save time and labor, strong automation, good material crushing effect, and facilitate subsequent recycling BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the overall structure of a screening device for recycling and regenerating construction waste according to the utility model;
[0016] Figure 2 This is a partial cross-sectional structural schematic diagram of a screening device for recycling and regenerating construction waste according to the utility model;
[0017] Figure 3 This is an enlarged structural diagram of part A of a screening device for recycling and regenerating construction waste according to the utility model;
[0018] Figure 4 The utility model is a schematic diagram of the structure of a screening device for recycling and regenerating construction waste in a bottom view.
[0019] In the figure: 1. support frame; 2. screening mechanism; 21. first motor; 22. screening box; 23. rotating shaft; 24. eccentric block; 25. impact block; 26. sleeve; 27. movable block; 28. reset spring; 29. feed hopper; 210. first screen; 211. second screen; 212. first conveyor wheel; 213. first conveyor belt; 214. second motor; 215. scraper; 216. first discharge port; 217. second discharge port; 218. third discharge port; 3. crushing mechanism; 31. crushing drum; 32. third motor; 33. crushing roller; 34. feed port; 35. discharge hopper; 36. second conveyor wheel; 37. second conveyor belt; 38. synchronous wheel; 39. synchronous belt. DETAILED DESCRIPTION
[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.
[0021] like Figure 1-4 As shown, a screening device for recycling construction waste comprises a support frame 1, a screening mechanism 2 is arranged on the upper side of the support frame 1 near one side, a crushing mechanism 3 is arranged on the upper side of the support frame 1 near the other side, the screening mechanism 2 comprises a first motor 21 fixedly arranged at the rear side of the support frame 1, a screening box 22 is fixedly arranged on the upper side of the support frame 1 near the front side of the first motor 21, a rotating shaft 23 is fixedly connected to the front end of the first motor 21, two groups of eccentric blocks 24 are fixedly arranged on the outer side of the rotating shaft 23, impact blocks 25 are fixedly arranged at the lower end of the screening box 22 corresponding to the positions of the two groups of eccentric blocks 24, sleeves 26 are fixedly arranged at the four corners of the screening box 22 on the upper side of the support frame 1, movable blocks 27 are movably arranged on the inner sides of the four groups of sleeves 26, and reset springs 28 are fixedly connected between the four groups of sleeves 26 and the movable blocks 27. A feed hopper 29 is fixedly provided on the upper side of the screening box 22 near one side, a first screen 210 is fixedly provided on the inner side of the screening box 22 near the upper side, a second screen 211 is fixedly provided on the inner side of the screening box 22 near the lower side, first conveying wheels 212 are movably provided on the upper side of the screening box 22 near both sides, and first conveying belts 213 are movably sleeved on the outer sides of the two groups of first conveying wheels 212, a second motor 214 is fixedly installed on the rear side of the screening box 22 near the upper side, a scraper 215 is movably connected to one side of the first conveying belt 213, a first discharge port 216 is fixedly provided on the front side of the screening box 22 corresponding to the position of the first screen 210, a second discharge port 217 is fixedly provided on the rear side of the screening box 22 corresponding to the position of the second screen 211, and a third discharge port 218 is fixedly provided on the other side of the screening box 22 near the lower side.
[0022] In this embodiment, the screening box 22 is arranged at an angle, and an opening is opened on the other side of the screening box 22 corresponding to the position of the first conveyor belt 213. The rotating shaft 23 is movably connected to the support frame 1, and the movable block 27 is limited and slid on the inner side of the sleeve 26. The sieve holes of the first screen 210 are larger than the sieve holes of the second screen 211. The first conveyor belt 213 is made of magnetic material, and the rotating shaft of the second motor 214 is fixedly connected to one group on one side of the two groups of first conveying wheels 212, and the scraper 215 is fixedly connected to the screening box 22.
[0023] Specifically, the crushed construction waste is put into the feed hopper 29 through the discharge hopper 35 and reaches the inner side of the screening box 22. The first motor 21 is started to drive the rotating shaft 23 to rotate, so that the two groups of eccentric blocks 24 intermittently hit the two groups of impact blocks 25, so that the screening box 22 drives the four groups of movable blocks 27 to circulate up and down inside the four groups of sleeves 26, and the four groups of return springs 28 are used to dampen the screening box 22 to prevent its vibration from being directly transmitted to the upper side of the support frame 1. The first screen 210 and the second screen 211 are driven to vibrate by the vibration of the screening box 22, so that the steel bars and larger concrete are left on the upper side of the first screen 210, the medium-sized soil blocks are left on the upper side of the second screen 211, and the fine soil residue reaches the bottom of the screening box 22, so that they are discharged through the first discharge port 216, the second discharge port 217, and the third discharge port 218 respectively, so as to achieve the effect of direct separation of construction waste, thereby facilitating different aspects. The recycling of the surface improves the utilization rate of construction waste, and at the same time, the second motor 214 is started, thereby driving the two sets of first conveying wheels 212 and the first conveyor belt 213 to rotate, and the magnetic material of the first conveyor belt 213 is used to adsorb metals such as steel bars in the construction waste, so that they are finally discharged through the opening on the other side of the screening box 22, and the fixed scraper 215 automatically scrapes them off, and the larger concrete blocks that are not completely crushed or remain after one crushing will be discharged from the first discharge port 216, and the two sets of synchronous wheels 38 and the synchronous belt 39 will drive the two sets of second conveying wheels 36 and the second conveyor belt 37 to rotate synchronously, so that the second conveyor belt 37 can directly transport the larger materials discharged from the first discharge port 216 back to the feed port 34 for further crushing, so as to achieve no manual operation, save time and labor, strong automation, good material crushing effect, and facilitate subsequent recycling.
[0024] In this embodiment, the crushing mechanism 3 includes a crushing barrel 31 fixedly arranged on the upper side of the support frame 1 near the other side, a third motor 32 is fixedly installed on the rear side of the crushing barrel 31, a crushing roller 33 is fixedly connected to the front side of the third motor 32, a feed port 34 is fixedly arranged on the upper side of the crushing barrel 31, and a discharge hopper 35 is fixedly arranged on the lower side of the feed port 34, a second conveying wheel 36 is movably arranged on the front side of the support frame 1 and the screening mechanism 2, and the outer sides of the two groups of second conveying wheels 36 are movably sleeved with second conveying belts 37, the first conveying wheel 212 and the second conveying wheel 36 are fixedly connected at the opposite end thereof with a synchronous wheel 38, and the outer sides of the two groups of synchronous wheels 38 are movably arranged with a synchronous belt 39, the crushing barrel 31 and the crushing roller 33 are movably connected, the discharge hopper 35 is connected to the feed hopper 29, the second conveying belt 37 is inclined, and the second conveying belt 37 is located at the lower side of the first discharge port 216.
[0025] Specifically, first, the construction waste is fed into the crushing drum 31 from the feed port 34, and the crushing roller 33 is driven to rotate by starting the third motor 32, so that the larger pieces of construction waste are crushed, and the steel bars are separated from the concrete blocks, and discharged through the discharge hopper 35, thereby achieving pre-crushing of large concrete blocks, making subsequent screening clearer, and making it more convenient to achieve different recycling of different materials.
[0026] Working principle:
[0027] When in use, firstly, construction waste is put into the crushing drum 31 from the feed port 34, and the crushing roller 33 is driven to rotate by starting the third motor 32, so that the relatively large pieces of construction waste are crushed, and the steel bars are separated from the concrete blocks, and discharged through the discharge hopper 35, so as to realize the pre-crushing of large concrete blocks, and facilitate the subsequent screening to be clearer, and thus more convenient to achieve different recycling of different materials. In addition, the crushed construction waste is put into the feed hopper 29 through the discharge hopper 35, and reaches the inner side of the screening box 22, and the first motor 21 is started to drive the rotating shaft 23 The two sets of eccentric blocks 24 intermittently impact the two sets of impact blocks 25, so that the screening box 22 drives the four sets of movable blocks 27 to circulate up and down inside the four sets of sleeves 26, and the screening box 22 is damped by the four sets of reset springs 28 to prevent its vibration from being directly transmitted to the upper side of the support frame 1. The first screen 210 and the second screen 211 are vibrated by the vibration of the screening box 22, so that the steel bars and larger concrete are left on the upper side of the first screen 210, the medium-sized soil blocks are left on the upper side of the second screen 211, and the fine soil residue reaches the bottom of the screening box 22. The second motor 214 is started at the same time, thereby driving the two sets of first conveying wheels 212 and the first conveying belt 213 to rotate, and the metal such as steel bars in the construction waste is adsorbed by the magnetic material of the first conveying belt 213, so that the metal finally passes through the opening on the other side of the screening box 22. The fixed scraper 215 automatically scrapes it off, and the larger concrete blocks that are not completely crushed or remain after one crushing will be discharged from the first discharge port 216, and the two sets of synchronous wheels 38 and the synchronous belt 39 will drive the two sets of second conveying wheels 36 and the second conveyor belt 37 to rotate synchronously, so that the second conveyor belt 37 can directly transport the larger materials discharged from the first discharge port 216 back to the feed port 34 for further crushing, thereby achieving the goal of no manual operation, saving time and labor, strong automation, good material crushing effect, and facilitating subsequent recycling.
[0028] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A screening device for recycling construction waste, comprising a support frame (1), characterized in that: A screening mechanism (2) is arranged on the upper side of the support frame (1) near one side, a crushing mechanism (3) is arranged on the upper side of the support frame (1) near the other side, the screening mechanism (2) comprises a first motor (21) fixedly arranged at the rear side of the support frame (1), a screening box (22) is fixedly arranged on the upper side of the support frame (1) near the front side of the first motor (21), a rotating shaft (23) is fixedly connected to the front end of the first motor (21), and the outer portion of the rotating shaft (23) is Two groups of eccentric blocks (24) are fixedly arranged on the side, and impact blocks (25) are fixedly arranged at the positions of the two groups of eccentric blocks (24) at the lower end of the screening box (22), and sleeves (26) are fixedly arranged at the four corners of the screening box (22) corresponding to the upper side of the support frame (1), and movable blocks (27) are movably arranged on the inner sides of the four groups of sleeves (26), and reset springs (28) are fixedly connected between the four groups of sleeves (26) and the movable blocks (27). The upper side of the screening box (22) is fixedly provided with a plurality of movable blocks (27). A feed hopper (29) is fixedly arranged near one side, a first screen (210) is fixedly arranged near the upper side of the inner side of the screening box (22), a second screen (211) is fixedly arranged near the lower side of the inner side of the screening box (22), first conveying wheels (212) are movably arranged near both sides of the upper side of the screening box (22), and first conveying belts (213) are movably sleeved on the outer sides of two groups of the first conveying wheels (212), and a rear side of the screening box (22) is fixedly arranged near the upper side of the screening box (22). A second motor (214) is fixedly installed near the upper side, a scraper (215) is movably connected to a side position of the first conveyor belt (213), a first discharge port (216) is fixedly provided on the front side of the screening box (22) corresponding to the position of the first screen (210), a second discharge port (217) is fixedly provided on the rear side of the screening box (22) corresponding to the position of the second screen (211), and a third discharge port (218) is fixedly provided on the other side of the screening box (22) near the lower side.
2. A screening device for recycling construction waste according to claim 1, characterized in that: The screening box (22) is arranged in an inclined manner, and an opening is provided on the other side of the screening box (22) corresponding to the position of the first conveyor belt (213), and the rotating shaft (23) is movably connected to the support frame (1).
3. A screening device for recycling construction waste according to claim 1, characterized in that: The movable block (27) is limitedly slidable on the inner side of the sleeve (26), and the mesh openings of the first screen (210) are larger than the mesh openings of the second screen (211).
4. A screening device for recycling construction waste according to claim 1, characterized in that: The first conveyor belt (213) is made of magnetic material, the rotating shaft of the second motor (214) is fixedly connected to one side of the two sets of first conveyor wheels (212), and the scraper (215) is fixedly connected to the screening box (22).
5. A screening device for recycling construction waste according to claim 1, characterized in that: The crushing mechanism (3) comprises a crushing drum (31) fixedly arranged on the upper side of the support frame (1) near the other side, a third motor (32) fixedly installed on the rear side of the crushing drum (31), a crushing roller (33) fixedly connected to the front side of the third motor (32), a feed port (34) fixedly arranged on the upper side of the crushing drum (31), a discharge hopper (35) fixedly arranged on the lower side of the feed port (34), second conveying wheels (36) movably arranged on the front side of the support frame (1) and the screening mechanism (2), second conveying belts (37) movably sleeved on the outer sides of two groups of the second conveying wheels (36), synchronous wheels (38) fixedly connected to the opposite ends of the first conveying wheel (212) and the second conveying wheel (36), synchronous belts (39) movably arranged on the outer sides of the two groups of the synchronous wheels (38).
6. A screening device for recycling construction waste according to claim 5, characterized in that: The crushing drum (31) and the crushing roller (33) are movably connected, the discharge hopper (35) is connected to the feed hopper (29), and the second conveyor belt (37) is inclined, and the second conveyor belt (37) is located at the lower side of the first discharge port (216).