Screening device for construction waste recycled aggregate

Abstract

The utility model discloses a screening device for construction waste recycled aggregate, and belongs to the technical field of aggregate processing. The two sides of a conveying roller are rotationally arranged on supporting legs, a screening barrel is arranged in the middle of a supporting frame, a discharging groove is formed in the side face of the screening barrel, symmetrical vibration holes are formed in the front side and the rear side of the screening barrel, and a screen is arranged in the screening barrel. The vibrating arm penetrates through the vibrating hole; the bottom of the discharging plate is connected with the discharging groove through a reset spring, a cyclone dust collector is further arranged above the conveying belt and communicated with the interior of the screening barrel through an air inlet pipe, a dust suction pump is installed on the top cover, the output end of the dust suction pump is connected with a turbine, and multiple sets of exhaust ports are further formed in the top cover. According to the vibrating screen, the screen can be vibrated through the swing arm and the vibrating plate, large aggregate is discharged from the discharging plate, and fine aggregate falls onto the conveying belt. Through pressurization of the turbine and the sedimentation effect of the cyclone dust collector, dust returns to the conveying belt again through the dust falling opening, and air is exhausted through the exhaust opening.

Description

Technical Field

[0001] The utility model relates to the technical field of aggregate processing, in particular to a screening device for recycled aggregates of construction waste. Background Art

[0002] Recycled aggregate from construction waste is a sustainable building material that reduces resource waste and environmental impact by recycling and reusing construction waste. These recycled aggregates usually include fragments and pieces of building materials such as concrete, bricks, stone, glass, wood and metal. The production process of recycled aggregate is usually more environmentally friendly than the process of making new aggregate from raw materials because it reduces resource consumption such as mining and exploitation, and also reduces the need for landfill or incineration of waste, thereby reducing the burden on natural resources and the environment. It has the characteristics of resource conservation, reduced construction costs, and increased supply of building materials. When the existing recycled aggregate from construction waste is processed, it is crushed, cleaned and graded by a shaping device. The shaping device includes a feeding system, a crusher, a screening equipment, a cleaning system, a conveying system, etc.

[0003] Application No.: CN202322439903.7 discloses an automatic screening and feeding device for concrete pile aggregates, comprising a base, a fixed frame is fixedly arranged on the left side of the top of the base, a groove is arranged on the fixed frame, a rotating shaft is rotatably arranged in the groove, a fixed seat is fixedly arranged on the rotating shaft, a driving motor is fixedly arranged on the fixed seat, the aggregate is poured into the inner groove of the screening barrel, the driving motor rotates the screening barrel, so that the aggregate rolls in the inner groove of the screening barrel, and finally qualified aggregate falls into the feeding trough through the screening hole, and is finally transported away by the conveyor belt, which is convenient for feeding, and the oversized aggregate remains in the inner groove of the screening barrel. When too much unqualified aggregate is accumulated, the hydraulic cylinder controls the output end to extend, and the rotating shaft is rotated in the groove by the driving arm, and the fixed seat is further rotated to make the screening barrel swing downward, so that the unqualified aggregate in the inner groove can be dumped out, the operation is simple and the practicability is high.

[0004] The aggregate screening device in the above-mentioned comparative documents will generate a large amount of dust during operation, and the dust cannot be recycled. Therefore, a screening device for recycled aggregate from construction waste is designed here to solve the above-mentioned problem. Utility Model Content

[0005] The utility model aims to provide a screening device for recycled aggregate from construction waste in order to solve the problems that a large amount of dust is generated in a traditional aggregate screening device during operation and the dust cannot be recycled.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is: a screening device for recycled aggregates from construction waste, comprising a conveying roller and a conveying belt, the two sides of the conveying roller are rotatably arranged on supporting legs, a supporting frame is also installed on the supporting legs, a screening drum is arranged in the middle of the supporting frame, a discharging trough is provided on the side of the screening drum, symmetrical vibration holes are provided on the front and rear sides of the screening drum, a screen is arranged in the screening drum, and vibration arms are fixedly connected to the two sides of the screen, and the vibration arms pass through the vibration holes; A discharge plate passing through the discharge trough is also provided on the side, and the bottom of the discharge plate is connected to the discharge trough through a return spring; a cyclone dust collector is also provided above the conveyor belt, and an air inlet pipe is connected to the outer wall of the cyclone dust collector, and the cyclone dust collector is connected to the interior of the screening cylinder through the air inlet pipe, and the air inlet pipe is located above the screen; a top cover is installed on the top of the cyclone dust collector, and a dust suction pump is installed on the top cover, and the output end of the dust suction pump is connected to a turbine, and a plurality of exhaust ports are also provided on the top cover.

[0007] As a further solution of the utility model: a dust outlet is provided at the bottom of the cyclone dust collector.

[0008] As a further solution of the utility model: a plurality of groups of striking arms are connected to the bottom of the turbine, and a plurality of groups of protrusions are arranged on the inner wall of the cyclone dust collector.

[0009] As a further solution of the utility model: a plurality of groups of conveying partitions are arranged at intervals on the conveyor belt.

[0010] As a further solution of the utility model: a vibration plate is fixedly connected to the vibration arm, a vibration motor is also installed on the support frame, and the output end of the vibration motor is connected to a swing arm that cooperates with the vibration plate.

[0011] As a further solution of the present invention: a smooth inner layer is sprayed on the inner wall of the cyclone dust collector 16 .

[0012] The utility model provides a screening device for recycled aggregate from construction waste through improvement, which has the following improvements and advantages compared with the prior art:

[0013] The utility model can efficiently vibrate the screen through the cooperation of the swing arm and the vibration plate, wherein the larger aggregate is discharged from the discharge plate, and the finer aggregate falls onto the conveyor belt at the bottom. The dust in the screening cylinder can be absorbed into the inside by the cyclone dust collector at the same time, and the dust returns to the conveyor belt through the dust outlet through the supercharging of the turbine and the sedimentation effect of the cyclone dust collector, and the air is discharged through the exhaust port. This structure greatly improves the practicality and stability of the screening device for recycled aggregates of construction waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0015] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0016] Figure 2 yes Figure 1 A magnified view of the structure at center A;

[0017] Figure 3 It is a three-dimensional structural diagram of the top cover in the utility model;

[0018] Figure 4 It is an internal diagram of the cyclone dust collector in the utility model.

[0019] Description of reference numerals:

[0020] 1. Conveyor belt; 2. Conveyor roller; 3. Support leg; 4. Conveyor partition; 5. Support frame; 6. Screening drum; 7. Discharge chute; 8. Vibration hole; 9. Screen; 10. Vibration arm; 11. Vibration plate; 12. Discharge plate; 13. Reset spring; 14. Vibration motor; 15. Swing arm; 16. Cyclone dust collector; 17. Inlet pipe; 18. Dust outlet; 19. Top cover; 20. Dust pump; 21. Turbine; 22. Beating arm; 23. Exhaust port; 24. Protrusion. DETAILED DESCRIPTION

[0021] The following will be combined with the attached Figures 1 to 4 The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides a screening device for recycled aggregates from construction waste through improvement. Figure 1-Figure 4As shown, a screening device for recycled aggregates of construction waste comprises a conveying roller 2 and a conveying belt 1. Both sides of the conveying roller 2 are rotatably arranged on supporting legs 3. A supporting frame 5 is also installed on the supporting legs 3. A screening drum 6 is arranged in the middle of the supporting frame 5. A discharge trough 7 is provided on the side of the screening drum 6. Symmetrical vibration holes 8 are provided on the front and rear sides of the screening drum 6. A screening mesh 9 is arranged in the screening drum 6. Vibration arms 10 are fixedly connected on both sides of the screening mesh 9. The vibration arms 10 penetrate the vibration holes 8. The side of the screening mesh 9 is also provided with a discharge trough 7. The bottom of the material plate 12 and the discharge plate 12 are connected to the discharge trough 7 through a return spring 13; a cyclone dust collector 16 is also arranged above the conveyor belt 1, and an air inlet pipe 17 is connected to the outer wall of the cyclone dust collector 16. The cyclone dust collector 16 is connected to the interior of the screening drum 6 through the air inlet pipe 17, and the air inlet pipe 17 is located above the screen 9; a top cover 19 is installed on the top of the cyclone dust collector 16, and a dust suction pump 20 is installed on the top cover 19. The output end of the dust suction pump 20 is connected to a turbine 21, and a plurality of exhaust ports 23 are also arranged on the top cover 19.

[0023] The utility model can efficiently vibrate the screen 9 through the cooperation of the swing arm 15 and the vibration plate 11, wherein the larger aggregate is discharged from the discharge plate 12, and the finer aggregate falls onto the conveyor belt 1 at the bottom. The dust in the screening cylinder 6 can be absorbed into the inside by the cyclone dust collector 16 at the same time, and the dust returns to the conveyor belt 1 through the dust outlet 18 through the boost of the turbine 21 and the sedimentation effect of the cyclone dust collector 16, and the air is discharged through the exhaust port 23. This structure greatly improves the practicality and stability of the screening device for recycled aggregates from construction waste.

[0024] See attached Figure 1 A dust outlet 18 is provided at the bottom of the cyclone dust collector 16 .

[0025] In this embodiment, in order to reuse the dust, a dust outlet 18 is provided at the bottom of the cyclone dust collector 16 .

[0026] See attached Figure 3 -Attached Figure 4 The bottom of the turbine 21 is connected to multiple groups of striking arms 22, and the inner wall of the cyclone dust collector 16 is provided with multiple groups of protrusions 24.

[0027] In this embodiment, in order to improve the discharge efficiency of dust scraps and prevent them from sticking to the inner wall after long-term use, multiple groups of knocking arms 22 are connected to the bottom of the turbine 21.

[0028] See attached Figure 1 A plurality of conveying partitions 4 are arranged at intervals on the conveyor belt 1.

[0029] In this embodiment, in order to improve the conveying efficiency of aggregates, a plurality of groups of conveying partitions 4 are arranged at intervals on the conveyor belt 1 .

[0030] See attached Figure 1 -Attached Figure 2 A vibration plate 11 is fixedly connected to the vibration arm 10 , and a vibration motor 14 is also installed on the support frame 5 . The output end of the vibration motor 14 is connected to a swing arm 15 that cooperates with the vibration plate 11 .

[0031] In this embodiment, in order to promote the screening of aggregates and vibrate the screen 9 , the output end of the vibration motor 14 is connected to a swing arm 15 that cooperates with the vibration plate 11 .

[0032] See attached Figure 4 , the inner wall of the cyclone dust collector 16 is sprayed with a smooth inner layer.

[0033] In this embodiment, in order to reduce the adhesion of dust, a smooth inner layer is sprayed on the inner wall of the cyclone dust collector 16.

[0034] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A screening device for recycled aggregate from construction waste, characterized in that: The invention comprises a conveying roller (2) and a conveying belt (1), wherein both sides of the conveying roller (2) are rotatably arranged on a supporting leg (3), a supporting frame (5) is also installed on the supporting leg (3), a screening drum (6) is arranged in the middle of the supporting frame (5), a discharging trough (7) is provided on the side of the screening drum (6), symmetrical vibration holes (8) are provided on the front and rear sides of the screening drum (6), a screening mesh (9) is arranged inside the screening drum (6), vibration arms (10) are fixedly connected on both sides of the screening mesh (9), and the vibration arms (10) pass through the vibration holes (8); a discharging plate (12) passing through the discharging trough (7) is also arranged on the side of the screening mesh (9), and the discharging plate (12) passes through the discharging trough (7), and the discharging plate (12) passes through the discharging trough (7). The bottom of the conveyor belt (12) is connected to the discharge trough (7) through a return spring (13); a cyclone dust collector (16) is also arranged above the conveyor belt (1), and an air inlet pipe (17) is connected to the outer wall of the cyclone dust collector (16); the cyclone dust collector (16) is connected to the interior of the sieving drum (6) through the air inlet pipe (17), and the air inlet pipe (17) is located above the sieve (9); a top cover (19) is installed on the top of the cyclone dust collector (16), and a dust suction pump (20) is installed on the top cover (19), and the output end of the dust suction pump (20) is connected to a turbine (21), and a plurality of exhaust ports (23) are also arranged on the top cover (19).

2. A screening device for recycled aggregate from construction waste according to claim 1, characterized in that: The bottom of the cyclone dust collector (16) is provided with a dust removal port (18).

3. The screening device for recycled aggregate from construction waste according to claim 1, characterized in that: The bottom of the turbine (21) is connected to a plurality of groups of striking arms (22), and the inner wall of the cyclone dust collector (16) is provided with a plurality of groups of protrusions (24).

4. The screening device for recycled aggregate from construction waste according to claim 1, characterized in that: A plurality of groups of conveying partitions (4) are arranged at intervals on the conveyor belt (1).

5. The screening device for recycled aggregate from construction waste according to claim 1, characterized in that: A vibration plate (11) is fixedly connected to the vibration arm (10), a vibration motor (14) is also installed on the support frame (5), and an output end of the vibration motor (14) is connected to a swing arm (15) that cooperates with the vibration plate (11).

6. The screening device for recycled aggregate from construction waste according to claim 1, characterized in that: The inner wall of the cyclone dust collector (16) is sprayed with a smooth inner layer.

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