Construction waste crushing, screening and recycling device for construction site and technology of construction waste crushing, screening and recycling device
By using the squeezing and shearing action of the crushing rollers and crushing bars, combined with the guiding of the guide plate and the design of the screening holes, the problem of incomplete crushing of construction waste in the existing technology is solved, and a more efficient crushing and screening effect is achieved.
Patent Information
- Application Number
- CN202610039471.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-13
- Publication Date
- 2026-02-17
AI Technical Summary
In existing technologies, jaw crushers, hammer crushers, and other equipment are difficult to completely crush construction waste into smaller particles, resulting in limited crushing efficiency.
The crushing device, composed of crushing rollers and crushing bars, combined with the design of guide plates and screening holes, achieves multiple crushing and screening. Through the rotation of the crushing rollers, the squeezing and shearing action of the crushing bars and crushing protrusions, combined with the guiding action of the guide plate, the construction waste is thoroughly crushed and screened.
It achieves thorough crushing and effective screening of construction waste, improves crushing efficiency, and facilitates the separation and recycling of particles of different sizes.
Smart Images
Figure CN121534826A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of construction waste recycling equipment, and in particular to a construction waste crushing, screening and recycling device and its process for use on construction sites. Background Technology
[0002] In the construction industry, with the accelerating pace of urbanization, the amount of construction waste generated at construction sites is increasing daily. The disposal of construction waste has gradually become a focus of industry attention. Effective construction waste disposal can not only reduce environmental pollution but also achieve resource recycling and reuse, which is of great significance for promoting the sustainable development of the construction industry. To address the problem of construction waste disposal, various conventional technologies are employed. One common method is the use of a jaw crusher, which uses a moving jaw plate to periodically reciprocate against a fixed jaw plate, compressing and crushing the construction waste entering the crushing chamber. This type of crusher has a simple structure, reliable operation, and can handle relatively large-sized construction waste. Another method is the hammer crusher, which uses high-speed rotating hammers to impact and crush the material. Hammer crushers have a large crushing ratio and high production efficiency, making them suitable for construction waste with medium to low hardness.
[0003] However, these existing technologies have certain drawbacks. Jaw crushers, hammer crushers, and cone crushers have limited crushing effects on construction waste, making it difficult to fully break it into smaller particles. Therefore, providing a crushing device that can more thoroughly crush construction waste is an urgent problem to be solved. Summary of the Invention
[0004] In order to crush construction waste more thoroughly, this application provides a construction waste crushing, screening and recycling device and its process for use on construction sites.
[0005] Firstly, this application provides a construction waste crushing, screening, and recycling device for construction sites, employing the following technical solution: A construction waste crushing, screening, and recycling device for construction sites includes: A hollow crushing box, wherein a feed inlet is formed on the top wall and a discharge outlet is formed on the bottom wall, and the depth direction of the crushing box is a first direction; And, a crushing device, the crushing device comprising two crushing components, the two crushing components being arranged sequentially in a second direction, the crushing components comprising: A crushing roller, which is parallel to a third direction and is rotatably connected to the crushing box about its own central axis; The crushing strip is parallel to a third direction and is fixedly connected to the outer peripheral wall of the crushing roller. Multiple crushing strips are distributed at intervals in the circumferential direction of the crushing roller, and a crushing gap is formed between two adjacent crushing strips. In addition, multiple breaking protrusions are fixedly connected to the surface of the breaking strip that forms the breaking gap.
[0006] By adopting the above technical solution, construction waste can enter the crushing box from the feed inlet, be crushed by the crushing device, and be discharged from the discharge outlet; the crushing roller can rotate inside the crushing box to crush the construction waste; the crushing gap formed by the crushing strips and the crushing protrusions on the surface of the crushing strips can increase the contact area and friction with the construction waste, and exert squeezing, shearing and other effects on the construction waste to improve the crushing effect and crush the construction waste more thoroughly.
[0007] Optionally, the crushing box is equipped with multiple crushing devices; Multiple crushing devices are arranged in two columns, with the two columns of crushing devices spaced apart in the second direction. Each column has multiple crushing devices spaced apart in the first direction, and a separation zone is formed between two adjacent crushing devices in each column in the first direction. Along the first direction, the crushing devices in the two columns are staggered, and the partitions in the two columns are also staggered. The partition zone is provided with a guide plate connected to the crushing box. The guide plate is located below the crushing device and is inclined downward toward another column of crushing devices, extending above the crushing devices in the other column that are at the same height as the partition zone of the guide plate.
[0008] By adopting the above technical solution, the setting and staggered distribution of multiple crushing devices, combined with the guiding effect of the baffle plate, can crush construction waste multiple times, making the construction waste more thoroughly crushed.
[0009] Optionally, the guide plate has a plurality of through-hole screening holes.
[0010] By adopting the above technical solution, the screening holes on the guide plate can screen the crushed construction waste, allowing smaller particles to fall and larger particles to continue sliding to another longitudinal crushing device for further crushing, thus achieving effective separation of construction waste of different sizes, which facilitates subsequent processing and recycling.
[0011] Optionally, the partition area is provided with a discharge plate fixedly connected to the crushing box, and the discharge plate is located below the guide plate.
[0012] By adopting the above technical solution, the discharge plate is fixed in the partition area and located below the guide plate, which can receive smaller construction waste particles falling through the screening holes, making it convenient for the discharge and recycling of construction waste particles of different sizes.
[0013] Optionally, the crushing box has multiple discharge holes on its wall, and one end of each guide plate is located at one of the discharge holes.
[0014] By adopting the above technical solution, after the construction waste is crushed by the crushing device, it flows to the discharge hole under the action of the guide plate. The setting of the discharge hole facilitates the discharge of larger construction waste particles from the crushing box after screening.
[0015] Optionally, the discharge plate is inclined downward toward the discharge hole.
[0016] By adopting the above technical solution, the discharge plate is tilted downwards towards the discharge hole, which facilitates the collection and discharge of smaller construction waste particles falling through the screening hole, thereby improving the discharge efficiency of construction waste.
[0017] Optionally, multiple springs are fixedly connected between the guide plate and the crushing box.
[0018] By adopting the above technical solution, the spring setting allows the guide plate to shake when the construction waste falls and generates impact force, making it easier for the construction waste to pass through the screening holes.
[0019] Optionally, a vibration motor is fixedly connected to the guide plate.
[0020] By adopting the above technical solution, the vibration motor is used to make the guide plate vibrate, which can prevent construction waste from accumulating on the guide plate and improve screening efficiency.
[0021] Optionally, the upper surface of the guide plate is fixedly connected with multiple baffles, which are arranged parallel to a third direction.
[0022] By adopting the above technical solution, multiple baffles are fixedly connected to the surface of the guide plate in a direction parallel to the third direction, which can prevent construction waste from sliding down too fast and facilitate the construction waste to fall from the screening holes of the guide plate.
[0023] Secondly, this application provides a process for crushing, screening, and recycling construction waste at construction sites, employing the following technical solution: A construction waste crushing, screening, and recycling process for construction sites, using the aforementioned crushing, screening, and recycling device, includes the following steps: S1: Add the items to be crushed into the crushing box through the feed inlet; S2: The crushing rollers in the two crushing components rotate in opposite directions to crush and squeeze the item that enters between the two crushing rollers; S2: Personnel collect the crushed items at the discharge port.
[0024] By adopting the above technical solution and using the crushing, screening and recycling device, the construction waste to be crushed is first added to the crushing box from the feed inlet. The crushing rollers of the two crushing components of the crushing device rotate in opposite directions to squeeze and crush the construction waste. Finally, the crushed construction waste is collected at the discharge outlet, so that the construction waste is crushed more thoroughly.
[0025] In summary, this application includes at least one of the following beneficial technical effects: By rotating the crushing rollers, in conjunction with the crushing bars and crushing protrusions, the construction waste is squeezed and sheared, which can crush the construction waste more thoroughly. Multiple crushing devices are staggered and, combined with the guiding effect of the baffle, can crush construction waste multiple times, resulting in more thorough crushing. The structure of the guide plate, including the screening holes, discharge plate, and discharge hole, facilitates the discharge and recycling of construction waste of different sizes. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application; Figure 2 This is a schematic diagram of the internal structure of the crushing box in an embodiment of this application; Figure 3 This is a schematic diagram of the crushing device in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the guide plate in the embodiment of this application.
[0027] Explanation of reference numerals in the attached drawings: 1. Crushing box; 11. Feed inlet; 12. Discharge outlet; 13. Discharge hole; 2. Crushing device; 21. Crushing assembly; 211. Crushing roller; 212. Motor; 213. Crushing bar; 214. Crushing protrusion; 2141. Crushing gap; 22. Crushing channel; 3. Separation zone; 4. Guide plate; 41. Screening hole; 42. Baffle bar; 43. Spring; 44. Vibrating motor; 5. Discharge plate. Detailed Implementation
[0028] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail. For ease of description, this application introduces directional terms such as first direction, second direction, and third direction to form a three-dimensional reference direction. The directional terms used, such as "first direction, second direction, and third direction," can be specifically referred to in the figure, where X represents the first direction, Y represents the second direction, Z represents the third direction, and the first direction, second direction, and third direction are perpendicular to each other.
[0029] This application discloses a construction waste crushing, screening, and recycling device for construction sites. (Refer to...) Figure 1 and Figure 2 The construction waste crushing, screening and recycling device at the construction site includes a hollow crushing box 1 and a crushing device 2 connected to the crushing box 1. The crushing box 1 has an inlet 11 on its top wall and an outlet 12 on its bottom wall. The depth direction of the crushing box 1 is the first direction. The crushing device 2 is connected to the crushing box 1 and is used to crush the construction waste entering the crushing box 1. With this configuration, the construction waste can enter the crushing box 1 from the inlet 11, be crushed by the crushing device 2, and be discharged from the outlet 12.
[0030] Reference Figure 1 and Figure 3 Specifically, the crushing device 2 includes two crushing components 21, which are arranged sequentially in the second direction. Each crushing component 21 includes a crushing roller 211, a motor 212, crushing bars 213, and crushing protrusions 214. The crushing roller 211 is located inside the crushing box 1 and parallel to the third direction. The crushing roller 211 is rotatably connected to the crushing box 1 around its own central axis, so that the crushing roller 211 can rotate inside the crushing box 1 to crush construction waste. In order to drive the crushing roller 211 to rotate, the motor 212 is connected between the crushing roller 211 and the crushing box 1. Specifically, the housing of the motor 212 is fixedly connected to the outer wall of the crushing box 1, and the output end of the motor 212 passes through the box wall of the crushing box 1 and is coaxially fixedly connected to the crushing roller 211, so that the motor 212 can drive the crushing roller 211 to rotate along the crushing box 1. The crushing strips 213 are parallel to a third direction and are fixedly connected to the outer peripheral wall of the crushing roller 211. Multiple crushing strips 213 are evenly and spaced along the circumference of the crushing roller 211, forming a crushing gap 2141 between adjacent crushing strips 213. The crushing strips 213 can be fixed to the crushing roller 211 by welding or by bolts, facilitating disassembly and replacement. Multiple crushing protrusions 214 are fixedly connected to the surface of the crushing strips 213 forming the crushing gaps 2141. The crushing protrusions 214 increase the contact area and friction between the crushing strips 213 and the construction waste, improving the crushing effect. The crushing protrusions 214 can be hemispherical, conical, or other shapes, and the material can be the same as the crushing strips 213. In each crushing device 2, a crushing channel 22 is formed between the two crushing components 21 for construction waste to pass through. When the construction waste enters the crushing gap 2141 and the crushing channel 22, as the crushing roller 211 rotates, the crushing strip 213 and the crushing protrusion 214 will squeeze and shear the construction waste, thereby crushing it.
[0031] Reference Figure 2 and Figure 4In some embodiments, the crushing chamber 1 is provided with multiple crushing devices 2, which are arranged in two columns. The two columns of crushing devices 2 are spaced apart in a second direction. Each column has multiple crushing devices 2 spaced apart in a first direction, and a partition zone 3 is formed between two adjacent crushing devices 2 in each column in the first direction. Along the first direction, the crushing devices 2 in the two columns are staggered, and the partition zones 3 in the two columns are staggered, which forms a near-zigzag arrangement of the multiple crushing devices 2 in the crushing chamber 1. In addition, in the first direction, the crushing channel 22 formed by the upper crushing device 2 is larger than the crushing channel 22 formed by the lower crushing device 2. The partition zone 3 is equipped with a guide plate 4 connected to the crushing box 1. The guide plate 4 is located below the crushing device 2 and is inclined downward toward another column of crushing devices 2, extending to the top of the crushing device 2 in the other column at the same height as the partition zone 3 where the guide plate 4 is located. In other words, the guide plate 4 is inclined downward toward another column of crushing devices 2 in the partition zone 3. The purpose of this design is that after the upper crushing device 2 crushes the construction waste, the crushed construction waste falls from the crushing channel 22 onto the guide plate 4, and then slides along the inclined direction of the guide plate 4 to the crushing channel 22 of the other column of crushing devices 2 for further crushing.
[0032] Reference Figure 2 and Figure 4 In some embodiments, the guide plate 4 has multiple through-hole screening holes 41. The screening holes 41 can screen the crushed construction waste. Smaller particles will fall through the screening holes 41, while larger particles will continue to slide on the guide plate 4 and flow to another longitudinal row of crushing devices 2. The shape of the screening holes 41 can be circular, square, etc., and their size can be adjusted according to actual needs. In two adjacent guide plates 4, the diameter of the screening holes 41 on the upper guide plate 4 is larger than the diameter of the screening holes 41 on the lower guide plate 4. Multiple baffle strips 42 are fixedly connected to the upper surface of the guide plate 4. The baffle strips 42 are arranged parallel to the third direction. The multiple baffle strips 42 are distributed at intervals along the inclined direction of the guide plate 4. The baffle strips 42 can prevent construction waste from sliding down too fast and facilitate the construction waste to fall from the screening holes 41 on the guide plate 4. To further improve the screening force of the guide plate 4, multiple springs 43 are fixedly connected between the guide plate 4 and the crushing box 1. The springs 43 can be helical springs 43, and their elastic coefficient can be selected according to the weight of the guide plate 4 and the working conditions. When construction waste falls onto the guide plate 4, the impact force it generates causes the guide plate 4 to shake, so that the construction waste can pass through the screening holes 41. Preferably, a vibration motor 44 is fixedly connected to the guide plate 4. The vibration motor 44 can be installed on the lower surface of the guide plate 4. The vibration motor 44 can make the guide plate 4 vibrate, which can prevent construction waste from accumulating on the guide plate 4 and improve screening efficiency.
[0033] Reference Figure 2 In order to collect the construction waste screened by the guide plate 4, a discharge plate 5 fixedly connected to the crushing box 1 is also provided in the partition zone 3. The discharge plate 5 is located below the guide plate 4 and is used to receive the smaller particles of construction waste falling through the screening holes 41. The discharge plate 5 can be inclined to facilitate the discharge of materials. Specifically, in each partition zone 3, the inclination direction of the discharge plate 5 is opposite to the downward inclination of the guide plate 4. That is to say, the discharge plate 5 is inclined downward toward the side away from the other column of crushing devices 2. The crushing box 1 has multiple discharge holes 13 on its walls. The discharge plates 5 are inclined downwards towards the discharge holes 13, that is, the lower end of each guide plate 4 is located at a corresponding discharge hole 13. In this way, larger construction waste particles after screening can be discharged from the crushing box 1 through the discharge holes 13. The discharge port 12 on the crushing box 1 is located directly below the bottom crushing device 2, so that the construction waste can be discharged through the discharge port 12 after being crushed by the bottom crushing device 2.
[0034] The implementation principle of this embodiment is as follows: This construction waste crushing, screening, and recycling device, through the arrangement and staggered distribution of multiple crushing devices 2, combined with the screening and guiding effect of the guide plate 4, can perform multiple crushing and screening processes on the construction waste, resulting in more thorough crushing. Simultaneously, the design of the screening holes 41, discharge plate 5, and discharge hole 13 facilitates the discharge and recycling of construction waste particles of different sizes. The inclusion of springs 43 and vibrating motors 44 improves the stability and screening efficiency of the equipment. Specifically, during construction, construction waste is fed into the crushing box 1 through the feed inlet 11. After being crushed by the upper crushing device 2, the construction waste passes through the guide plate 4 and enters the next layer of crushing device 2 for further crushing. When the construction waste passes through the guide plate 4, the construction waste that meets the particle size requirements falls from the screening hole 41 onto the discharge plate 5 and is discharged out of the crushing box 1 through the discharge hole 13. Finally, after being crushed layer by layer by the multi-layer crushing device 2, the construction waste is discharged out of the crushing box 1 through the discharge port 12 at the bottom of the crushing box 1.
[0035] This application also discloses a process for crushing, screening, and recycling construction waste at construction sites. The process includes the following steps: S1: The material to be crushed is added to the crushing box 1 through the feed inlet 11. In this step, the operator needs to collect the construction waste generated at the construction site and then transport it to the feed inlet 11 using suitable transportation tools, such as wheelbarrows or conveyor belts, before pouring it into the crushing box 1. During the pouring process, care should be taken to control the speed and amount of pouring to avoid the construction waste accumulating at the feed inlet 11, which would affect the subsequent crushing process.
[0036] S2: The crushing rollers 211 in the two crushing components 21 rotate in opposite directions to crush and compress the material entering between the two crushing rollers 211. When construction waste enters the crushing box 1, the motor 212 is started, and the motor 212 drives the crushing rollers 211 to rotate. When the crushing rollers 211 rotate in opposite directions, they apply pressure and shear force to the construction waste entering between the two crushing rollers 211.
[0037] S3: Personnel collect the crushed materials at discharge port 12. After multiple crushing and screening processes, the qualified crushed particles are discharged from discharge port 12. Operators can use collection containers, such as bags or boxes, at discharge port 12 to collect the crushed materials. After collection, these crushed particles undergo further processing, such as for road base paving or brick making, to achieve resource recycling and reuse.
[0038] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A construction site construction waste crushing and screening recycling device, characterized in that, The application relates to a crushing and screening recovery device. The crushing device (2) comprises two crushing assemblies (21) arranged in a second direction, and the crushing assembly (21) comprises a crushing roller (211) rotatingly connected to the crushing box (1) around a central axis of the crushing roller (211) and parallel to a third direction; a crushing strip (213) fixedly connected to the outer peripheral wall of the crushing roller (211) and parallel to the third direction, a plurality of crushing strips (213) being distributed in a circumferential direction of the crushing roller (211) and a crushing gap (2141) being formed between two adjacent crushing strips (213); and a plurality of crushing protrusions (214) fixedly connected to the surface of the crushing gap (2141). The crushing box (1) is internally provided with a plurality of crushing devices (2). The plurality of crushing devices (2) are arranged in two columns, the two columns of crushing devices (2) are arranged in the second direction, each column has a plurality of crushing devices (2) arranged in the first direction, and a separation area (3) is formed between two adjacent crushing devices (2) in the first direction. The separation area (3) is internally provided with a guide plate (4) connected to the crushing box (1), the guide plate (4) is located below the crushing device (2), and the guide plate (4) is inclined downward towards another column of crushing devices (2) and extends above the crushing device (2) in another column which is at the same height as the separation area (3) of the guide plate (4). The guide plate (4) is provided with a plurality of screening holes (41) penetratingly arranged.
2. The construction site building waste crushing and screening recycling device according to claim 1, characterized in that, The separation area (3) is internally provided with a discharge plate (5) fixedly connected to the crushing box (1), and the discharge plate (5) is located below the guide plate (4). The box wall of the crushing box (1) is provided with a plurality of discharge holes (13), and each end of the guide plate (4) corresponds to one of the discharge holes (13). The discharge plate (5) is inclined downward towards the discharge hole (13). A plurality of springs (43) are fixedly connected between the guide plate (4) and the crushing box (1).
3. The construction site building waste crushing and screening recycling device according to claim 2, characterized in that, A vibration motor (44) is fixedly connected to the guide plate (4).
4. The construction site building waste crushing and screening recycling device according to claim 3, characterized in that, A plurality of material blocking strips (42) are fixedly connected to the upper plate surface of the guide plate (4) and parallel to the third direction.
5. The construction site construction waste crushing and screening recycling device according to claim 4, characterized in that, The application further discloses a construction method of the crushing and screening recovery device.
6. The construction site building waste crushing and screening recycling device according to claim 5, characterized in that, S1: adding the crushed objects into the crushing box (1) through the feeding port (11).
7. A construction and demolition waste crushing and sorting recycling device according to any one of claims 2-6, characterized in that, 8. The construction site construction waste crushing and screening recycling device according to claim 7, characterized in that, 9. The construction site building waste crushing and screening recycling device according to claim 8, characterized in that, 10. A construction site construction waste crushing and screening recovery process, characterized by, S2: The crushing rollers (211) in the two crushing assemblies (21) rotate towards each other to crush and extrude the articles entering between the two crushing rollers (211); S2: The personnel collect the crushed articles at the discharge port (12).