Rolling screen for recycling building waste stones

Abstract

The utility model relates to the technical field of building waste stone recovery, in particular to a rolling screen for building waste stone recovery, which comprises a rolling screen component and a circulating conveyor, the rolling screen component comprises an obliquely arranged screening cylinder, the upper end of the screening cylinder is fixedly connected with a feed pipe, and the lower end of the screening cylinder is fixedly connected with a discharge pipe; the tail end of the circulating conveyor is installed below the feeding pipe, the front end of the circulating conveyor is installed below the discharging pipe, the inner wall of the circulating conveyor is fixedly connected with a material guiding plate, and the material guiding plate is arranged close to the feeding pipe and used for guiding materials to enter the feeding pipe. According to the device disclosed by the utility model, substandard stones discharged from the discharge pipe are guided by the guide plate to enter the feed pipe again under the action of the circulating conveyor and enter the screening cylinder again to be screened, and through multiple times of circulating screening, the thoroughness of stone screening is improved, the situation that the substandard stones and qualified stones are discharged together is reduced, and the screening efficiency is improved. Therefore, the recycling quality of the waste stone is improved.

Description

A rotating screen for recycling construction waste stone Technical Field

[0001] This utility model relates to the field of construction waste stone recycling technology, and more specifically, to a rotating screen for recycling construction waste stone. Background Technology

[0002] With the acceleration of urbanization, a large amount of construction waste stone is generated during urban construction. Recycling and reusing this waste stone can not only save natural resources and reduce production costs, but also reduce the pollution caused by waste stone accumulation. As an important piece of equipment in the recycling and processing of construction waste stone, the rotary screen undertakes the key task of screening and grading waste stone.

[0003] However, existing rotary screens often fail to completely screen out qualified stones in one go when screening construction waste stone. Some substandard waste stone is discharged along with qualified stone, resulting in poor screening effect and reduced recycling quality of waste stone. Summary of the Invention

[0004] This invention proposes a rotary screen for recycling construction waste stone, which improves the thoroughness of stone screening, reduces the situation where unqualified stone is discharged together with qualified stone, and thus improves the recycling quality of waste stone.

[0005] The technical solution of this utility model is: a rotary screen for recycling construction waste stone, including a rotary screen assembly and a circulating conveyor;

[0006] The rotary screen assembly includes an inclined screening cylinder, with a feed pipe fixedly connected to the upper end of the screening cylinder and a discharge pipe fixedly connected to the lower end.

[0007] The end of the circulating conveyor is installed below the feed pipe, and the front end of the circulating conveyor is installed below the discharge pipe. A guide plate is fixedly connected to the inner wall of the circulating conveyor. The guide plate is set close to the feed pipe to guide the material into the feed pipe.

[0008] Preferably, the rolling mechanism for recycling construction waste stone also includes a base, the top of which is fixedly connected to two support plates, one of which is fixedly connected to the top of a feed pipe and the other of which is fixedly connected to the top of a discharge pipe.

[0009] Preferably, a gear ring is fixedly connected to the outer wall of both the feed pipe and the discharge pipe, and an output shaft is rotatably connected between the two support plates. Gears are fixedly connected to both ends of the output shaft, and the gears mesh with the gear ring.

[0010] Preferably, a first stepper motor is fixedly connected to the outer wall of the circulating conveyor, and the output end of the first stepper motor is fixedly connected to the output shaft.

[0011] Preferably, a support plate is fixedly connected to the top of the base, two support blocks are fixedly connected to the top of the support plate, a ball screw is rotatably connected between the two support blocks, a connecting plate is fixedly connected to two ball nuts on the outer wall of the ball screw, a feeding plate is fixedly connected to the top of the connecting plate, and the top of the connecting plate is fixedly connected to the bottom of the feeding plate.

[0012] Preferably, a second stepper motor is fixedly connected to the top of the base, and the output end of the second stepper motor is fixedly connected to a ball screw.

[0013] Preferably, a feeding conveyor is fixedly installed between the two support plates.

[0014] Preferably, the rotary screen for recycling construction waste stone also includes a dustproof box, a dust-collecting fan is fixedly connected to the top of the dustproof box, the air inlet of the dust-collecting fan extends into the dustproof box, a filter cylinder is fixedly connected to the top of the dustproof box, a filter screen is fixedly connected to the inner wall of the filter cylinder, a conveying pipe is fixedly connected to the outer wall of the filter cylinder, and the end of the conveying pipe is fixedly connected to the exhaust port of the dust-collecting fan.

[0015] The beneficial effects of this utility model, achieved through the above technical solution, are as follows:

[0016] 1. By setting up a circulating conveyor, guide plate, screening cylinder, feed pipe and discharge pipe to form a circulating screening mechanism, the problem of poor screening effect of the existing rolling screen is effectively solved. Traditional rolling screens are difficult to completely screen out qualified stones in one go, resulting in low recycling quality. In this device, the substandard stones discharged from the discharge pipe are guided by the guide plate to re-enter the feed pipe under the action of the circulating conveyor, and then enter the screening cylinder for screening again. After multiple cycles of screening, the thoroughness of stone screening is improved, and the situation of unqualified stones being discharged together with qualified stones is reduced, thereby improving the recycling quality of waste stone.

[0017] 2. The dust collector fan inside the dust box sucks in the generated dust. When the dust passes through the filter cartridge, the filter screen intercepts the dust, and the clean air is discharged through the delivery pipe, which plays a role in dust prevention and reduces dust pollution. Attached Figure Description

[0018] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 is a schematic diagram of the installation structure of the screening cylinder of this utility model;

[0020] Figure 3 is a schematic diagram of the installation structure of the output shaft of this utility model;

[0021] Figure 4 is a schematic diagram of the installation structure of the material feeding plate of this utility model.

[0022] In the diagram: 1. Base; 2. Support plate; 3. Dustproof box; 4. Feed pipe; 5. Discharge pipe; 6. Screening cylinder; 7. Gear ring; 8. Output shaft; 9. Gear; 10. First stepper motor; 11. Guide plate; 12. Circulating conveyor; 13. Dust extraction fan; 14. Conveying pipe; 15. Filter cylinder; 16. Filter screen; 17. Discharge conveyor; 18. Pallet; 19. Second stepper motor; 20. Pallet; 21. Connecting plate; 22. Ball screw; 23. Discharge plate. Detailed Implementation

[0023] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0024] As shown in Figures 1, 2 and 3, a rotary screen for recycling construction waste includes a rotary screen assembly and a circulating conveyor 12.

[0025] The rotary screen assembly includes an inclined screening cylinder 6, with a feed pipe 4 fixedly connected to the upper end of the screening cylinder 6 and a discharge pipe 5 fixedly connected to the lower end.

[0026] The end of the circulating conveyor 12 is installed below the feed pipe 4, and the front end of the circulating conveyor 12 is installed below the discharge pipe 5. A guide plate 11 is fixedly connected to the inner wall of the circulating conveyor 12. The guide plate 11 is set close to the feed pipe 4 to guide the material into the feed pipe 4.

[0027] By setting up a circulating conveyor 12, a guide plate 11, and cooperating with the screening cylinder 6, feed pipe 4, and discharge pipe 5, a circulating screening mechanism is formed, which effectively solves the problem of poor screening effect of the existing rolling screen. Traditional rolling screens are difficult to completely screen out qualified stones in one go, resulting in low recycling quality. In this device, the substandard stones discharged from the discharge pipe 5 are guided by the guide plate 11 under the action of the circulating conveyor 12 and re-enter the feed pipe 4, and then enter the screening cylinder 6 for screening again. After multiple cycles of screening, the thoroughness of stone screening is greatly improved, and the situation of unqualified stones being discharged together with qualified stones is reduced, thereby improving the recycling quality of waste stone.

[0028] In this embodiment, as shown in Figure 2, the rolling mechanism for recycling construction waste stone also includes a base 1. Two support plates 2 are fixedly connected to the top of the base 1. The top of one support plate 2 is fixedly connected to the feed pipe 4, and the top of the other support plate 2 is fixedly connected to the discharge pipe 5.

[0029] The base 1 and the support plate 2 provide stable support for the entire rotating screen.

[0030] In this embodiment, as shown in Figures 1, 2 and 3, a gear ring 7 is fixedly connected to the outer wall of both the feed pipe 4 and the discharge pipe 5. An output shaft 8 is rotatably connected between the two support plates 2. Gears 9 are fixedly connected to both ends of the output shaft 8. The gears 9 mesh with the gear ring 7. A first stepper motor 10 is fixedly connected to the outer wall of the circulating conveyor 12. The output end of the first stepper motor 10 is fixedly connected to the output shaft 8.

[0031] Gear 9 meshes with gear ring 7, transmitting the rotation of output shaft 8 to feed pipe 4 and discharge pipe 5, which in turn drives screening cylinder 6 to rotate, ensuring continuous and stable rotation of screening cylinder 6 and allowing the stone to be fully screened inside screening cylinder 6.

[0032] In this embodiment, as shown in Figures 1 and 4, a support plate 18 is fixedly connected to the top of the base 1, and two support blocks 20 are fixedly connected to the top of the support plate 18. A ball screw 22 is rotatably connected between the two support blocks 20. A connecting plate 21 is fixedly connected to the two ball nuts on the outer wall of the ball screw 22. A feed plate 23 is fixedly connected to the top of the connecting plate 21. The top of the connecting plate 21 is fixedly connected to the bottom of the feed plate 23. A second stepper motor 19 is fixedly connected to the top of the base 1. The output end of the second stepper motor 19 is fixedly connected to the ball screw 22.

[0033] The arrangement of pallet 18, pallet block 20, ball screw 22, connecting plate 21 and feed plate 23 allows for adjustment of the position of feed plate 23, facilitating material receiving and improving the practicality and flexibility of the device.

[0034] In this embodiment, as shown in Figure 1, a feeding conveyor 17 is fixedly installed between the two support plates 2.

[0035] The feeding conveyor 17 is designed to promptly transport the screened and qualified stones out, making it convenient for material handling.

[0036] In this embodiment, as shown in Figure 1, the rotating screen for recycling construction waste stone also includes a dustproof box 3. A dust extraction fan 13 is fixedly connected to the top of the dustproof box 3. The air inlet of the dust extraction fan 13 extends into the dustproof box 3. A filter cylinder 15 is fixedly connected to the top of the dustproof box 3. A filter screen 16 is fixedly connected to the inner wall of the filter cylinder 15. A conveying pipe 14 is fixedly connected to the outer wall of the filter cylinder 15. The end of the conveying pipe 14 is fixedly connected to the exhaust port of the dust extraction fan 13.

[0037] The dust collector 13 draws the dust generated during the screening process into the dust box 3, the filter 16 filters the dust, and the clean air is discharged through the delivery pipe 14, effectively reducing dust pollution.

[0038] Working principle: Construction waste stone enters the inclined screening cylinder 6 through the feed pipe 4; during the rolling process of the screening cylinder 6, the stone that meets the requirements falls through the screen holes of the screening cylinder 6, while the stone that does not meet the requirements is discharged from the discharge pipe 5.

[0039] The substandard stone material discharged from the discharge pipe 5 falls onto the circulating conveyor 12. The circulating conveyor 12 guides the stone material to the guide plate 11. The inclined guide plate 11 guides the stone material back into the feed pipe 4 from the lower end for screening again. This cycle continues.

[0040] After the qualified stones fall, they are conveyed out by the feeding conveyor 17;

[0041] After the cyclic screening, the second stepper motor 19 is started, which drives the ball screw 22 to rotate. The ball nut moves on the ball screw 22, which in turn drives the feed plate 23 to move. The end of the feed plate 23 is close to the discharge pipe 5, so as to facilitate the discharge of the stone after the reciprocating screening.

[0042] During the screening process, the dust collector 13 inside the dust box 3 sucks in the generated dust. When the dust passes through the filter cartridge 15, the filter screen 16 intercepts the dust, and the clean air is discharged through the delivery pipe 14, which plays a role in dust prevention and reduces dust pollution.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rotary screen for recycling construction waste stone, characterized in that, include: The rotating screen assembly includes an inclined screening cylinder (6), the upper end of which is fixedly connected to a feed pipe (4), and the lower end of which is fixedly connected to a discharge pipe (5); a circulating conveyor (12), the end of which is installed below the feed pipe (4), the front end of which is installed below the discharge pipe (5), and a guide plate (11) is fixedly connected to the inner wall of the circulating conveyor (12). The guide plate (11) is set close to the feed pipe (4) and is used to guide the material into the feed pipe (4).

2. The rotary screen for recycling construction waste stone according to claim 1, characterized in that: It also includes a base (1), on the top of which two support plates (2) are fixedly connected, one of which is fixedly connected to the top of the feed pipe (4), and the other is fixedly connected to the top of the discharge pipe (5).

3. The rotary screen for recycling construction waste stone according to claim 2, characterized in that: The outer walls of the feed pipe (4) and the discharge pipe (5) are both fixedly connected with gear rings (7), and the two support plates (2) are rotatably connected with an output shaft (8). Both ends of the output shaft (8) are fixedly connected with gears (9), and the gears (9) mesh with the gear rings (7).

4. The rotary screen for recycling construction waste stone according to claim 3, characterized in that: The outer wall of the circulating conveyor (12) is fixedly connected to a first stepper motor (10), and the output end of the first stepper motor (10) is fixedly connected to the output shaft (8).

5. The rotary screen for recycling construction waste stone according to claim 4, characterized in that: The base (1) is fixedly connected to a support plate (18) at the top. Two support blocks (20) are fixedly connected to the top of the support plate (18). A ball screw (22) is rotatably connected between the two support blocks (20). A connecting plate (21) is fixedly connected to two ball nuts on the outer wall of the ball screw (22). A feed plate (23) is fixedly connected to the top of the connecting plate (21). The top of the connecting plate (21) is fixedly connected to the bottom of the feed plate (23).

6. The rotary screen for recycling construction waste stone according to claim 5, characterized in that: The base (1) is fixedly connected to a second stepper motor (19) at the top, and the output end of the second stepper motor (19) is fixedly connected to a ball screw (22).

7. The rotary screen for recycling construction waste stone according to claim 6, characterized in that: A feeding conveyor (17) is fixedly installed between the two support plates (2).

8. The rotary screen for recycling construction waste stone according to claim 7, characterized in that: It also includes a dust box (3), on the top of which a dust collector (13) is fixedly connected. The air inlet of the dust collector (13) extends into the dust box (3). A filter cylinder (15) is fixedly connected to the top of the dust box (3). A filter screen (16) is fixedly connected to the inner wall of the filter cylinder (15). A conveying pipe (14) is fixedly connected to the outer wall of the filter cylinder (15). The end of the conveying pipe (14) is fixedly connected to the exhaust port of the dust collector (13).

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