Construction waste crushing and screening device

Abstract

The utility model discloses a construction waste crushing and screening device which comprises a screening base and a crushing box, a screen is arranged in the screening base, a plurality of first crushing rollers and a plurality of second crushing rollers are transversely and rotationally arranged in the crushing box, a first discharging opening matched with the screen is formed in the rear side of the screening base, and a filtering box is arranged at the top of the rear side of the screening base. A pipeline is arranged at the top of the filter box and extends to the position above the feeding port to be provided with a draught hood, a draught channel communicated with the draught hood is arranged in the pipeline, a first draught fan is arranged in the draught channel, and a second draught fan extending to the inner top of the screening base is arranged at the bottom of the filter box. Compared with the prior art, the building rubbish crushing and screening device has the advantages that building rubbish can be crushed in a high-quality mode through double-layer crushing, meanwhile, the crushed building rubbish can be screened through the bottom screening base, the crushing and screening efficiency can be greatly improved through the integrated design, and meanwhile, through up-down dust suction and filtration, the building rubbish can be effectively screened. Dust emission can be greatly reduced, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of construction waste recycling, in particular to a construction waste crushing and screening device. Background Art

[0002] Construction waste refers to the slag, abandoned soil, abandoned materials, silt and other wastes generated during the construction, laying, demolition and repair of various buildings, structures, pipelines, etc. by construction units or individuals. Among the construction waste, there are more slag, broken stones, waste mortar, brick and tile fragments, concrete blocks and asphalt blocks. These construction wastes generally need to be crushed, screened and recycled. The crushing and screening in the existing technology are all split types, and the crushing and screening efficiency is low. Moreover, a large amount of dust will be generated in the crushing and screening of these construction wastes, which is easy to cause environmental pollution and harm to the health of workers. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a construction waste crushing and screening device with high efficiency and reduced pollution in view of the deficiencies raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the technical solution provided by the utility model is: a construction waste crushing and screening device, comprising a screening base and a crushing box arranged on the top of the front side of the screening base, the screening base and the crushing box are connected, the top of the crushing box is connected to a feeding port, the screening base is connected to a screen, the top of the crushing box is laterally rotatably connected to multiple first crushing rollers, the crushing box is located below the multiple first crushing rollers and is laterally rotatably connected, the rear side of the screening base is connected to a first discharge port matching the screen, the top of the rear side of the screening base is connected to a filter box, the top of the filter box is connected to a pipe, the pipe extends to the top of the feeding port and is connected to an exhaust hood, the pipe is provided with an exhaust channel connected to the exhaust hood, the exhaust channel is connected to a first exhaust fan, and the bottom of the filter box is connected to a second exhaust fan extending to the top of the screening base.

[0005] Furthermore, a conveyor belt extending to the outside is connected to the bottom of the screen in the screening base, and a second discharge port cooperating with the conveyor belt is provided on the rear side of the screening base to facilitate the stable discharge of the screened filter residue.

[0006] Furthermore, a first driving motor and a first transmission box for driving the plurality of first crushing rollers and the plurality of second crushing rollers are connected to both sides of the crushing box, so as to facilitate driving the plurality of first crushing rollers and the plurality of second crushing rollers to rotate stably.

[0007] Furthermore, the screening base is provided with a plurality of rotating shafts rotatably connected below the screen, a vibrating cam is connected to the rotating shaft, and a second drive motor and a second transmission box are connected to both sides of the screening base for driving the plurality of rotating shafts to rotate, so as to facilitate rapid vibration screening of the screen.

[0008] Furthermore, the filter box is provided with a first filter channel and a second filter channel respectively cooperating with the pipe and the second exhaust fan, and the first filter channel and the second filter channel are both connected to a support net, and a filter cloth cover is connected to the inner side of the support net to facilitate filtering of the incoming gas.

[0009] Furthermore, a fixed support column is connected between the crushing box and the pipeline, and a cleaning door cooperating with the first filter channel and the second filter channel is connected to the filter box. The fixed support column is convenient for ensuring the stability of the pipeline, and the cleaning door is convenient for cleaning the dust particles filtered inside.

[0010] The advantages of the construction waste crushing and screening device of the utility model compared with the prior art are: the utility model can crush the construction waste with higher quality through double-layer crushing, and can screen the crushed construction waste through the bottom screening base. The integrated design can greatly improve the crushing and screening efficiency, and can greatly reduce dust emission and reduce environmental pollution through upper and lower dust extraction and filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The utility model is a schematic diagram of the cross-sectional structure of a construction waste crushing and screening device.

[0012] Figure 2 The utility model is a schematic diagram of the side structure of a construction waste crushing and screening device.

[0013] As shown in the figure: 1. Screening base, 2. Crushing box, 3. Feeding port, 4. First crushing roller, 5. Second crushing roller, 6. Screen, 7. Rotating shaft, 8. Vibrating cam, 9. First discharge port, 10. Conveyor belt, 11. Second discharge port, 12. First drive motor, 13. First transmission box, 14. Second drive motor, 15. Second transmission box, 16. Filter box, 17. Pipeline, 18. Exhaust channel, 19. Exhaust hood, 20. First exhaust fan, 21. Second exhaust fan, 22. First filter channel, 23. Second filter channel, 24. Support net, 25. Filter cloth cover, 26. Cleaning door, 27. Fixed support column. DETAILED DESCRIPTION

[0014] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0015] Combined with Figure 1-2A construction waste crushing and screening device comprises a screening base 1 and a crushing box 2 arranged on the top of the front side of the screening base 1. The screening base 1 and the crushing box 2 are connected to each other, and a feeding port 3 is connected to the top of the crushing box 2. The device needs to be used in conjunction with a transmission device, and the transmission device puts the construction waste into the crushing box 2 through the feeding port 3. A screen 6 is connected inside the screening base 1, and a plurality of first crushing rollers 4 are connected to the top of the crushing box 2 for transverse rotation. A plurality of second crushing rollers 5 are connected to the crushing box 2 for transverse rotation below the plurality of first crushing rollers 4. The first crushing roller 4 or the second crushing roller 5 are provided with crushing blades that cooperate with each other. At the same time, the tool size of the first crushing roller 4 is large, and larger construction waste can be crushed into smaller ones. The cutters of the two crushing rollers 5 are relatively small in size, and relatively small construction waste can be fully crushed. The rear side of the screening base 1 is connected with a first discharge port 9 that matches the screen 6. The top of the rear side of the screening base 1 is connected with a filter box 16. The top of the filter box 16 is connected with a pipe 17. The pipe 17 extends to the top of the feeding port 3 and is connected with an exhaust hood 19. The pipe 17 is provided with an exhaust channel 18 connected to the exhaust hood 19. The exhaust channel 18 is connected with a first exhaust fan 20. The bottom of the filter box 16 is connected with a second exhaust fan 21 that extends to the top of the screening base 1. The dust particles floating in the crushing and screening can be sucked into the filter box 16 for filtering through the first exhaust fan 20 and the second exhaust fan 21.

[0016] A conveyor belt 10 extending to the outside is connected to the bottom of the screen 6 in the screening base 1, and a second discharge port 11 cooperating with the conveyor belt 10 is provided on the rear side of the screening base 1. The fully crushed construction waste can be screened out through the screen 6, and the screened construction waste can be discharged through the conveyor belt 10. The two sides of the crushing box 2 are connected with a first drive motor 12 and a first transmission box 13 for driving multiple first crushing rollers 4 and multiple second crushing rollers 5. The first crushing roller 4 and the second crushing roller 5 are divided into two layers, so that the first drive motor 12 and the first transmission box 13 are each provided with two, that is, the first drive motor 12 is directly connected to one of the first crushing rollers 4 or the second crushing roller 5, and the remaining first crushing roller 4 or the second crushing roller 5 extends into the first transmission box 13 and is connected for transmission through gear meshing.

[0017] A plurality of rotating shafts 7 are rotatably connected to the screening base 1 below the screen 6, and a vibrating cam 8 is connected to the rotating shaft 7. A second drive motor 14 and a second transmission box 15 for driving the plurality of rotating shafts 7 to rotate are connected to both sides of the screening base 1. The second drive motor 14 and the second transmission box 15 can drive the rotation of the plurality of rotating shafts 7 and the cam 8, so that the screen 6 can be vibrated and screened, thereby improving the screening efficiency.

[0018] The filter box 16 is provided with a first filter channel 22 and a second filter channel 23 respectively matching the pipe 17 and the second exhaust fan 21, the first filter channel 22 and the second filter channel 23 are both connected with a support net 24, the inner side of the support net 24 is connected with a filter cloth cover 25, a fixed support column 27 is connected between the crushing box 2 and the pipe 17, and the filter box 16 is connected with a cleaning door 26 matching the first filter channel 22 and the second filter channel 23.

[0019] During the specific implementation of the utility model, construction waste is added through the feeding port 3, the first drive motor 12 and the second drive motor 14 are started, and the construction waste pieces can be double-crushed by the first crushing roller 4 or the second crushing roller 5. After crushing, the construction waste enters the screening base 1 and is screened by the screen 6. The sufficiently crushed construction waste is transmitted through the bottom conveyor belt 10, and the insufficiently crushed construction waste is discharged through the first discharge port 9. The dust floating in the crushing and screening can be sucked into the filter box 16 for filtering by the first exhaust fan 20 and the second exhaust fan 21.

[0020] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A construction waste crushing and screening device, comprising a screening base (1) and a crushing box (2) arranged at the top of the front side of the screening base (1), the screening base (1) and the crushing box (2) are connected, the top of the crushing box (2) is connected with a feeding port (3), and the screening base (1) is connected with a screen (6), characterized in that: A plurality of first crushing rollers (4) are laterally rotatably connected to the top of the crushing box (2); a plurality of second crushing rollers (5) are laterally rotatably connected below the plurality of first crushing rollers (4) in the crushing box (2); a first discharge port (9) cooperating with the screen (6) is connected to the rear side of the screening base (1); a filter box (16) is connected to the top of the rear side of the screening base (1); a pipe (17) is connected to the top of the filter box (16); the pipe (17) extends to the top of the feeding port (3) and is connected to an exhaust hood (19); an exhaust channel (18) connected to the exhaust hood (19) is provided in the pipe (17); a first exhaust fan (20) is connected in the exhaust channel (18); and a second exhaust fan (21) extending to the top of the screening base (1) is connected to the bottom of the filter box (16).

2. The construction waste crushing and screening device according to claim 1, characterized in that: A conveyor belt (10) extending to the outside is connected to the bottom of the screen (6) in the screening base (1), and a second discharge port (11) cooperating with the conveyor belt (10) is provided on the rear side of the screening base (1).

3. The construction waste crushing and screening device according to claim 1, characterized in that: A first driving motor (12) and a first transmission box (13) for driving a plurality of first crushing rollers (4) and a plurality of second crushing rollers (5) are connected to both sides of the crushing box (2).

4. The construction waste crushing and screening device according to claim 1, characterized in that: A plurality of rotating shafts (7) are rotatably connected and arranged below the screen (6) in the screening base (1), and a vibration cam (8) is connected to the rotating shaft (7). A second drive motor (14) and a second transmission box (15) are connected to both sides of the screening base (1) for driving the plurality of rotating shafts (7) to rotate.

5. The construction waste crushing and screening device according to claim 1, characterized in that: The filter box (16) is provided with a first filter channel (22) and a second filter channel (23) which respectively cooperate with the pipeline (17) and the second exhaust fan (21). The first filter channel (22) and the second filter channel (23) are both connected to a support net (24). The inner side of the support net (24) is connected to a filter cloth cover (25).

6. The construction waste crushing and screening device according to claim 5, characterized in that: A fixed support column (27) is connected between the crushing box (2) and the pipeline (17), and a cleaning door (26) matching the first filter channel (22) and the second filter channel (23) is connected to the filter box (16).

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