Equipment and process for manufacturing recycled building materials from building waste concrete
By designing integrated equipment, the problems of low efficiency and dust pollution in construction waste concrete processing equipment were solved, achieving a comprehensive solution for efficient crushing, transportation, and dust suppression.
Patent Information
- Application Number
- CN202511117624.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-11
- Publication Date
- 2025-11-21
AI Technical Summary
Existing construction waste concrete processing equipment is limited in function, inefficient, causes serious dust pollution, and lacks effective dust control measures.
An integrated device comprising a walking mechanism, a concrete crushing mechanism, a material conveying mechanism, and a dust suppression mechanism was designed. The device is moved flexibly through gear transmission, uses a jaw crusher to efficiently crush concrete, a conveyor belt to quickly transport the crushed material, and a water pump and nozzle system to suppress dust.
It has enabled efficient crushing and transportation of construction waste concrete, reduced dust pollution, and improved processing efficiency and environmental protection.
Smart Images

Figure CN120984409A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of waste concrete treatment technology, specifically to equipment and processes for producing recycled building materials from construction waste concrete. Background Technology
[0002] With the ongoing boom in the construction industry, urban renewal and infrastructure construction are constantly progressing, generating massive amounts of construction waste concrete. If this waste concrete is not properly disposed of, it will not only cause a huge waste of land resources, but also cause environmental problems such as dust and leachate pollution due to long-term accumulation, negatively impacting the surrounding ecology and residents' lives.
[0003] Currently, while some equipment exists on the market for processing waste concrete, most are single-function. For example, some only have a crushing function, requiring manual or other equipment to transport the crushed material, resulting in low efficiency and increased labor costs. Others lack effective coordination between the transport equipment and the crushing equipment, leading to spillage of the material during transport and causing secondary pollution. Furthermore, the dust problem during crushing and transportation is severe, affecting not only the health of operators but also violating environmental protection requirements. The equipment for producing recycled building materials from construction waste concrete, as described in this patent, is specifically developed to address these industry pain points. Summary of the Invention
[0004] To address the shortcomings mentioned in the background art, this invention provides a technical solution for equipment and processes for producing recycled building materials from construction waste concrete. The equipment and processes for producing recycled building materials from construction waste concrete of this invention should be able to flexibly select construction sites as needed, crush waste concrete into the required fragments, and then transport them to designated locations or transport vehicles, while ensuring the control of dust pollution during crushing and transportation.
[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:
[0006] A device for producing recycled building materials from construction waste concrete includes two sets of walking mechanisms. A concrete crushing mechanism is fixedly connected to the top surface of the walking mechanism, and a forward-extending crushed material transport mechanism is fixedly connected to the bottom surface of the concrete crushing mechanism. A dust suppression mechanism is provided on the top surface of the crushed material transport mechanism.
[0007] Both sets of walking mechanisms include two left and right mirror-symmetrical support side plates, 5-8 support columns fixedly connected between the support side plates, and 3 wheels rotatably arranged between the support side plates. A gearbox is fixed on the outer wall of each outer support side plate. Two drive motors are installed on the side of each gearbox away from the support side plate. The output shafts of the drive motors pass through the inside of the gearbox, and helical gears are connected to the output shafts of the drive motors via couplings. A drive shaft rotatably passes through the front section of each outer support side plate. A driven gear is fixed on the outer ring of the drive shaft, and a drive gear that meshes with the driven gear is rotatably arranged in the inner cavity of the gearbox. The helical gears mesh with the teeth of the outer ring of the drive gears.
[0008] The concrete crushing mechanism includes a base, a jaw crusher fixedly connected to the top surface of the base, and a crushing motor installed at the rear side of the top surface of the base to provide crushing driving force for the jaw crusher. Support feet are fixedly connected to the four corners of the bottom surface of the base, and a feeding hopper that connects to the feeding port of the jaw crusher is provided in the central area of the bottom of the base.
[0009] The crushed material conveying mechanism includes a strip frame, a conveying motor fixedly connected to the front end of the strip frame, and several rotating rollers rotatably disposed in the inner cavity of the strip frame, with a conveyor belt wound around the rotating rollers. A collecting hopper that connects to the discharge port of the discharge hopper is provided at the top of the rear end of the strip frame.
[0010] The dust suppression mechanism includes a water tank, a water pump fixedly connected to the upper surface of the water tank, and a gooseneck pipe connected to the water pump delivery end via a pipe joint. A nozzle is provided at the end of the gooseneck pipe.
[0011] In the above technical solution, preferably: the left and right ends of the support column are fixedly connected to the inner surfaces of the support side plates that are close to each other, and the support side plates have space between them for the wheel to be accommodated and rotated.
[0012] In the above technical solution, preferably: the inner end face of the wheel is rotatably connected to the inner surface of the inner support side plate through a bearing seat, and sprockets are connected to the outer end face of the wheel, and chains are arranged between the sprockets.
[0013] In the above technical solution, preferably, the end of the drive shaft away from the drive motor is fixedly connected to the outer end face of the front wheel.
[0014] In the above technical solution, preferably, each of the walking mechanisms has two crossbeams welded to each other.
[0015] In the above technical solution, preferably, the bottom ends of the support feet are all fixedly connected to the top surface of the crossbeam.
[0016] In the above technical solution, preferably: the bottom rear surface of the strip frame is fixedly connected to the central area of the top surface of the crossbeam, and the front end of the strip frame is curved upward.
[0017] In the above technical solution, preferably: the bottom surface of the water tank is fixedly connected to the front end of the top surface of the strip frame.
[0018] In the above technical solution, preferably: the pumping end of the water pump is connected to a pumping pipe that penetrates into the inner cavity of the water tank through a connector, and a water inlet is provided on the side wall of the water tank.
[0019] This invention also relates to a process for producing recycled building materials from construction waste concrete. This process is based on the aforementioned equipment for producing recycled building materials from construction waste concrete, and the process has the following steps:
[0020] S1: Move the equipment to a suitable working position, and the walking mechanism will start working. The drive motor outputs power to drive the helical gear to rotate through the coupling. The helical gear meshes with the drive gear, and the drive gear drives the driven gear to rotate. The driven gear is fixed on the transmission shaft, which in turn causes the transmission shaft to rotate. The end of the transmission shaft away from the drive motor is fixedly connected to the outer end face of the front wheel, thereby driving the wheel to rotate. Since there are sprockets connected to the outer end face of the wheel, and the sprockets are connected to each other by a chain, the synchronous rotation of all wheels is achieved, enabling the walking mechanism to move.
[0021] S2: To crush waste concrete, start the concrete crushing mechanism. The crushing motor provides power to the jaw crusher. The construction waste concrete is fed into the jaw crusher for crushing. The crushed material falls into the collection hopper of the crushing conveying mechanism through the feeding hopper.
[0022] S3: Transport the crushed material to the designated location. When the crushed material transport mechanism is working, the transport motor drives the rotating roller to rotate, and the conveyor belt on the rotating roller runs accordingly. The crushed material in the collection hopper falls onto the conveyor belt. As the conveyor belt runs, the crushed material is transported to the other end of the conveyor belt, that is, to the designated location.
[0023] S4: Dust suppression is carried out during the transportation of crushed materials. The dust suppression mechanism starts working, the water pump starts, and water is drawn out of the water tank through the water pipe. The water is pumped into the gooseneck pipe and then sprayed out through the nozzle at the end of the gooseneck pipe to suppress dust in the crushed materials during transportation and reduce dust.
[0024] As can be seen from the above technical solution, the equipment and process for producing recycled building materials from construction waste concrete provided by the present invention have the following beneficial effects compared with the prior art:
[0025] This invention relates to a device for producing recycled building materials from construction waste concrete. The device achieves flexible movement through a drive motor and gear transmission, facilitating transfer to different work sites. The concrete crushing mechanism uses a jaw crusher paired with a crushing motor to efficiently crush waste concrete into suitable fragments. The fragment transportation mechanism utilizes a transport motor to drive a conveyor belt, enabling rapid transport of the fragments to designated locations, thus improving processing efficiency. The dust suppression mechanism is equipped with a water tank, water pump, and spray nozzles to spray water during fragment transportation, reducing dust pollution and improving the working environment. Attached Figure Description
[0026] Figure 1 A schematic diagram of the overall structure of a waste concrete recycling and remanufacturing equipment;
[0027] Figure 2 This is a schematic diagram of the walking mechanism;
[0028] Figure 3 A schematic diagram showing the disassembled walking mechanism after the explosion;
[0029] Figure 4 This is a schematic diagram of a concrete crushing mechanism;
[0030] Figure 5 This is a schematic diagram of a scrap material transport mechanism;
[0031] Figure 6 This is a schematic diagram of a dust suppression mechanism.
[0032] Appendix Figure 1 - Appendix Figure 6 The correspondence between the components is as follows:
[0033] 1. Walking mechanism; 11. Support side plate; 12. Drive gear; 13. Gearbox; 14. Helical gear; 15. Drive motor; 16. Driven gear; 17. Drive shaft; 18. Chain; 19. Wheel; 110. Support column;
[0034] 2. Concrete crushing mechanism; 21. Base; 22. Jaw crusher; 23. Crushing motor; 24. Feed hopper; 25. Support legs;
[0035] 3. Crushed material conveying mechanism; 31. Strip frame; 32. Conveyor motor; 33. Conveyor belt; 34. Collection hopper;
[0036] 4. Dust suppression mechanism; 41. Water tank; 42. Gooseneck pipe; 43. Nozzle; 44. Water pump; 45. Pumping pipe;
[0037] 5. Crossbeam. Detailed Implementation
[0038] 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 embodiments described below 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0039] To provide a clearer explanation and illustration of the technical solution and implementation of the present invention, the following describes preferred embodiments of the technical solution of the present invention.
[0040] Example 1
[0041] During the landscaping renovation of a large exhibition hall, solid waste mainly consisted of garden paths and paving, demolition of existing structures, earthwork, concrete pouring, masonry, decoration and renovation waste and excavated soil.
[0042] This embodiment designs a device for producing recycled building materials from construction waste concrete. The device consists of two sets of walking mechanisms 1, a concrete crushing mechanism 2, a material transport mechanism 3, and a dust suppression mechanism 4. The top surface of the walking mechanism 1 is fixedly connected to the concrete crushing mechanism 2 by welding. The bottom surface of the concrete crushing mechanism 2 is fixedly connected to the forward-extending material transport mechanism 3 by bolts. The top surface of the material transport mechanism 3 is equipped with a dust suppression mechanism 4 via a bracket.
[0043] Each set of walking mechanisms 1 includes two left and right mirror-symmetrically arranged support side plates 11, which are made of high-strength steel plates. Five support columns 110 are welded and fixedly connected between the support side plates 11 and each other. The left and right ends of the support columns 110 are fixedly connected to the inner surfaces of the support side plates 11 that are close to each other, and the support side plates 11 have space between them for the wheels 19 to be accommodated and rotated.
[0044] The aforementioned rotating arrangement includes three wheels 19 positioned between the supporting side plates 11. The inner end faces of the wheels 19 are rotatably connected to the inner surface of the inner supporting side plate 11 via axle seats. Each wheel 19 has a sprocket connected to its outer end face, and chains 18 are arranged between the sprockets to achieve synchronous rotation of the wheels 19. Gearboxes 13 are bolted to the outer walls of the outer supporting side plates 11. Two drive motors 15 are mounted on the side of each gearbox 13 away from the supporting side plate 11. The output shafts of the drive motors 15 extend into the gearboxes 13, and helical gears 14 are connected to the output shafts of the drive motors 15 via couplings. A drive shaft 17 is rotatably driven through the front section of the outer support side plate 11. The end of the drive shaft 17 away from the drive motor 15 is fixedly connected to the outer end face of the front wheel 19. A driven gear 16 is fixed on the outer ring of the drive shaft 17, and a drive gear 12 that meshes with the driven gear 16 is rotatably arranged in the inner cavity of the gearbox 13. Helical gears 14 mesh with the teeth of the outer ring of the drive gear 12 respectively. When the drive motor 15 is working, the drive shaft 17 is driven to rotate through the transmission of helical gears 14, drive gears 12 and driven gears 16, thereby causing the wheel 19 to rotate and realizing the movement of the walking mechanism 1.
[0045] The aforementioned concrete crushing mechanism 2 includes a base 21 made of cast steel, a jaw crusher 22 fixedly connected to the top surface of the base 21 (the jaw crusher 22 is a common crushing equipment), and a crushing motor 23 installed on the rear side of the top surface of the base 21 to provide crushing drive force to the jaw crusher 22. Support feet 25 are welded and fixedly connected to the four corners of the bottom surface of the base 21. The bottom ends of the support feet 25 are fixedly connected to the top surface of the crossbeam 5. The crossbeam 5 is welded between the two sets of traveling mechanisms 1, serving a connecting and supporting function. A feeding hopper 24 is provided in the central area of the bottom of the base 21, which connects to the feeding port of the jaw crusher 22.
[0046] The aforementioned crushed material transport mechanism 3 includes a strip frame 31, the rear bottom surface of which is fixedly connected to the central area of the top surface of the crossbeam 5, and the front end of the strip frame 31 is upturned. A transport motor 32 is fixedly connected to the front end of the strip frame 31, and several rotating rollers are rotatably arranged in the inner cavity of the strip frame 31, with a conveyor belt 33 wound around the rollers. The transport motor 32 drives the rollers to rotate, thereby causing the conveyor belt 33 to run, realizing the transport of crushed materials. A collection hopper 34 is provided at the top of the rear end of the strip frame 31, which connects to the discharge port of the discharge hopper 24. The crushed concrete crushed material enters the collection hopper 34 through the discharge hopper 24 and then falls onto the conveyor belt 33 for transport. In one implementation example, the crushed material is used as recycled aggregate to prepare low-grade recycled aggregate concrete for foundation reinforcement, road engineering subbase, indoor flooring and floor subbase, non-load-bearing concrete hollow blocks, concrete hollow partition boards, autoclaved fly ash bricks, etc.
[0047] The aforementioned dust suppression mechanism 4 includes a water tank 41, the bottom surface of which is fixedly connected to the front end of the top surface of the strip frame 31. A water pump 44 is fixedly connected to the upper surface of the water tank 41. The pump's suction end is connected to a suction pipe 45 that penetrates into the inner cavity of the water tank 41 via a connector. A water inlet is provided on the side wall of the water tank 41, through which water can be injected into the water tank 41. A gooseneck pipe 42 is connected to the pump's delivery end via a pipe connector. The gooseneck pipe 42 can be flexibly adjusted in angle. A nozzle 43 is provided at the end of the gooseneck pipe 42. When the pump 44 is working, it draws water from the water tank 41 and delivers it to the nozzle 43 through the gooseneck pipe 42. The nozzle 43 sprays water to suppress dust from the debris during transportation.
[0048] In another feasible design, the number of support columns 110 for the walking mechanism 1 is 6, and the other structures are basically the same as in the above embodiment, which can also achieve stable support and movement of the equipment. Furthermore, the jaw crusher 22 in this embodiment adopts a new crushing structure, which has higher crushing efficiency and can crush waste concrete into suitable fragments more quickly.
[0049] In another feasible design, the number of wheels 19 in the walking mechanism 1 is increased to four, and the chain 18 is adjusted accordingly to accommodate the change in the number of wheels 19. Simultaneously, the surface of the conveyor belt 33 of the crushed material transport mechanism 3 is provided with anti-slip textures to better transport crushed materials and prevent them from slipping during transport. The water tank 41 of the dust suppression mechanism 4 has an increased capacity, allowing it to store more water and extend the dust suppression operation time.
[0050] Example 2
[0051] Based on the above-described preferred technical solution, the workflow of this technical solution is explained, and the application process of the above-described equipment in the production of recycled building materials from construction waste concrete is illustrated:
[0052] S1: Move the equipment to a suitable working position, and the walking mechanism starts working. The drive motor 15 outputs power to drive the helical gear 14 to rotate through the coupling. The helical gear 14 meshes with the drive gear 12 for transmission. The drive gear 12 drives the driven gear 16 to rotate. The driven gear 16 is fixed on the transmission shaft 17, which in turn causes the transmission shaft 17 to rotate. The end of the transmission shaft 17 away from the drive motor 15 is fixedly connected to the outer end face of the front wheel 19, thereby driving the wheel 19 to rotate. Since there are sprockets connected to the outer end face of the wheel 19, and the sprockets are connected to each other through the chain 18, the synchronous rotation of all the wheels 19 is achieved, enabling the walking mechanism 1 to move, thereby driving the entire equipment to the construction site.
[0053] S2: Collect and crush the waste concrete, start the concrete crushing mechanism 2, the crushing motor 23 provides power to the jaw crusher 22, and put the construction waste concrete into the jaw crusher 22 for crushing. The crushed material falls into the collection hopper 34 of the crushed material transportation mechanism 3 through the feeding hopper 24.
[0054] S3: Transport the crushed material to the designated location. When the crushed material transport mechanism 3 is working, the transport motor 32 drives the rotating roller to rotate, and the transport belt 33 on the rotating roller runs accordingly. The crushed material in the collection hopper 34 falls onto the transport belt 33. As the transport belt 33 runs, the crushed material is transported to the other end of the transport belt 33, that is, to the designated location. It can be piled up at the designated location or collected and transported to the factory by dump truck for processing, such as processing into bricks, etc.
[0055] S4: Dust suppression is carried out during the transportation of crushed materials. The dust suppression mechanism 4 starts working, the water pump 44 starts, and the water in the water tank 41 is drawn out through the water pipe 45. The water is transported through the water pump 44 to the gooseneck pipe 42, and then sprayed out through the nozzle 43 at the end of the gooseneck pipe 42 to suppress dust in the crushed materials during transportation and reduce the pollution caused by dust.
[0056] Furthermore, during equipment operation, if the traveling mechanism 1 needs to adjust its direction, it can be turned by controlling the speed of different drive motors 15 and utilizing the differential speed of the wheels 19. After the equipment completes the work in one area, the traveling mechanism 1 is restarted to move the equipment to the next work area, repeating the above-mentioned crushing, transportation, and dust suppression workflow until the processing of construction waste concrete is completed.
[0057] When the equipment stops working after completing the preparation of recycled building materials, first turn off the crushing motor 23, conveying motor 32, water pump 44, and drive motor 15. After all components stop operating, clean and maintain the equipment to prepare for the next use. At the same time, the support column 110 of the walking mechanism 1 provides stable support to ensure the stability of the equipment during operation; the support feet 25 transfer the weight of the concrete crushing mechanism 2 to the crossbeam 5, and then the crossbeam 5 distributes it to the walking mechanism 1; the front end of the strip frame 31 is tilted upward to prevent the crushed material on the conveyor belt 33 from slipping during transportation.
[0058] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.
Claims
1. Equipment for producing recycled building materials from construction waste concrete, comprising two sets of walking mechanisms (1), characterized in that: The top surface of the walking mechanism (1) is fixedly connected to a concrete crushing mechanism (2), the bottom surface of the concrete crushing mechanism (2) is fixedly connected to a forward-extending crushed material transport mechanism (3), and the top surface of the crushed material transport mechanism (3) is provided with a dust suppression mechanism (4). Both sets of walking mechanisms (1) include two left and right mirror-symmetrically arranged support side plates (11), 5-8 support columns (110) fixedly connected between the support side plates (11) and close to each other, and 3 wheels (19) rotatably arranged between the support side plates (11). A gearbox (13) is fixed on the outer side wall of the outer support side plate (11), and two drive motors (15) are installed on the side of the gearbox (13) away from the support side plate (11). The output shafts all pass through the inside of the gearbox (13), and the output shaft of the drive motor (15) is connected to a helical gear (14) via a coupling; a transmission shaft (17) is rotatably connected through the front section of the outer support side plate (11), a driven gear (16) is fixed on the outer ring of the transmission shaft (17), and a drive gear (12) that meshes with the driven gear (16) is rotatably arranged in the inner cavity of the gearbox (13), and the helical gear (14) meshes with the teeth of the outer ring of the drive gear (12) respectively; The concrete crushing mechanism (2) includes a base (21), a jaw crusher (22) fixedly connected to the top surface of the base (21), and a crushing motor (23) installed on the rear side of the top surface of the base (21) to provide crushing driving force for the jaw crusher (22). Support feet (25) are fixedly connected to the four corners of the bottom surface of the base (21). A feeding hopper (24) that connects to the feeding port of the jaw crusher (22) is provided in the central area of the bottom of the base (21). The material transport mechanism (3) includes a strip frame (31), a transport motor (32) fixedly connected to the front end of the strip frame (31), and several rotating rollers rotatably arranged in the inner cavity of the strip frame (31), with a transport belt (33) wound around the rotating rollers. The top of the rear end of the strip frame (31) is provided with a collection hopper (34) that is connected to the discharge port of the discharge hopper (24). The dust suppression mechanism (4) includes a water tank (41), a water pump (44) fixedly connected to the upper surface of the water tank (41), and a gooseneck pipe (42) connected to the delivery end of the water pump (44) through a pipe joint. A nozzle (43) is provided at the end of the gooseneck pipe (42).
2. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The left and right ends of the support column (110) are fixedly connected to the inner surfaces of the support side plates (11) that are close to each other, and the support side plates (11) have space between each other for the wheel (19) to be accommodated and rotated.
3. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The inner end face of the wheel (19) is rotatably connected to the inner surface of the inner support side plate (11) via a bearing seat. The outer end face of the wheel (19) is connected to a sprocket, and the sprockets are connected to each other by a chain (18).
4. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The end of the drive shaft (17) away from the drive motor (15) is fixedly connected to the outer end face of the front wheel (19).
5. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The walking mechanism (1) has two crossbeams (5) welded to each other.
6. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The bottom ends of the support feet (25) are all fixedly connected to the top surface of the crossbeam (5).
7. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The bottom rear surface of the strip frame (31) is fixedly connected to the central area of the top surface of the crossbeam (5), and the front end of the strip frame (31) is upturned.
8. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The bottom surface of the water tank (41) is fixedly connected to the front end of the top surface of the strip frame (31).
9. The equipment for producing recycled building materials from construction waste concrete according to claim 1, characterized in that: The pump (44) has a pumping end connected to a pumping pipe (45) that penetrates into the inner cavity of the water tank (41) via a connector. The water tank (41) has a water inlet on its side wall.
10. A process for producing recycled building materials from construction waste concrete, characterized in that: The equipment for producing recycled building materials from construction waste concrete as described in any one of claims 1-9, and the process having the following flow: S1: Move the equipment to a suitable working position. When the walking mechanism (1) is working, the drive motor (15) outputs power to drive the helical gear (14) to rotate through the coupling. The helical gear (14) meshes with the drive gear (12) for transmission. The drive gear (12) drives the driven gear (16) to rotate. The driven gear (16) is fixed on the transmission shaft (17), which in turn causes the transmission shaft (17) to rotate. The end of the transmission shaft (17) away from the drive motor (15) is fixedly connected to the outer end face of the front wheel (19), thereby driving the wheel (19) to rotate. Since there are sprockets connected to the outer end face of the wheel (19), the sprockets are connected by a chain (18) to achieve synchronous rotation of all wheels (19), so that the walking mechanism (1) can move. S2: The waste concrete is crushed. The concrete crushing mechanism (2) is started. The crushing motor (23) provides power to the jaw crusher (22). The construction waste concrete is put into the jaw crusher (22) for crushing. The crushed material falls into the collection hopper (34) of the crushed material transportation mechanism (3) through the feeding hopper (24). S3: Transport the crushed material to the designated location. When the crushed material transport mechanism (3) is working, the transport motor (32) drives the rotating roller to rotate, and the transport belt (33) on the rotating roller runs accordingly. The crushed material in the collection hopper (34) falls onto the transport belt (33). As the transport belt (33) runs, the crushed material is transported to the other end of the transport belt (33), that is, transported to the designated location. S4: Dust suppression is carried out during the transportation of crushed materials. The dust suppression mechanism (4) starts working, the water pump (44) starts, and the water in the water tank (41) is pumped out through the water pump (45). The water is transported to the gooseneck pipe (42) through the water pump (44) and then sprayed out through the nozzle (43) at the end of the gooseneck pipe (42) to suppress dust in the crushed materials during transportation and reduce dust.