Recycled concrete aggregate screening device

Abstract

The utility model discloses a recycled concrete aggregate screening device, relates to the technical field of concrete aggregate screening, and solves the problems that when the concrete aggregate is screened by the screening device, each layer of screened aggregate cannot be discharged while being screened, all the concrete aggregates need to be completely screened, and the screening efficiency is high. The concrete aggregate screening device comprises a base and screening plates, a supporting frame is arranged at the upper end of the base, supporting columns are symmetrically and fixedly installed between the supporting frame and the two ends of the base, and the side walls of the three screening plates are fixedly connected with one another, so that the screening efficiency of the concrete aggregate is improved, and the screening efficiency of the concrete aggregate is improved. And in the screening work, the three screening plates are sequentially rotated, the screening plates at different positions can be conveniently moved and rotated to the bottom, concrete aggregate screened every time can be conveniently and directly collected, and the screening work efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete aggregate screening, specifically to a recycled concrete aggregate screening device. Background Technology

[0002] Recycled concrete aggregate refers to aggregates made by crushing, washing, and grading waste concrete blocks, then mixing them with graded aggregates in a certain proportion to partially or completely replace natural aggregates such as sand and gravel. When screening the aggregates, a vibrating motor is used to drive the screen or screen plate to vibrate, which facilitates the screening of the placed concrete aggregates.

[0003] A search revealed Chinese Patent Publication No. CN216397070U, which discloses a vibratory screening device for recycled concrete aggregates, belonging to the field of recycled concrete technology. This device includes a vibratory screening component and a discharge component. The vibratory screening component comprises a housing, an elastic element, a connecting rod, a first screen, a second screen, a rotating shaft, a cam, a motor, and a feed hopper. The discharge component comprises a base plate, a support block, a support plate, a hydraulic cylinder, and a discharge plate. The support block and the support plate are positioned on top of the base plate. By incorporating the housing, elastic element, connecting rod, first screen, second screen, rotating shaft, cam, motor, and feed hopper, the device can effectively vibrate and screen the recycled concrete aggregates, improving the screening effect. The base plate, support block, support plate, hydraulic cylinder, and discharge plate facilitate the discharge of the screened aggregates, allowing for rapid subsequent screening and improving screening efficiency.

[0004] However, when screening concrete aggregates, this screening device requires the use of multiple layers of screens installed on both the upper and lower levels to achieve a more refined screening. As a result, the aggregates in each layer cannot be discharged simultaneously during the screening process. The aggregates can only be discharged after all the concrete aggregates have been completely screened, which reduces the efficiency of the concrete aggregate screening process. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a recycled concrete aggregate screening device. This device solves the problem that when screening concrete aggregates, multiple layers of screens installed vertically are required for finer screening. Consequently, during the screening process, aggregates from each layer cannot be discharged simultaneously; discharge only occurs after all aggregates have been completely screened, thus reducing the efficiency of concrete aggregate screening.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a recycled concrete aggregate screening device, comprising a base and screen plates. A support frame is provided at the upper end of the base. Support columns are symmetrically fixedly installed between the support frame and both ends of the base. Support plates are symmetrically arranged between the two side walls inside the support frame, and the support plates are rotatably connected to the side walls of the adjacent support frames via rotating rods. Three screen plates are provided, respectively located at the lower end and front and rear ends of two support plates. All three screen plates are fixedly connected to the side walls of the two side support plates, and adjacent screen plates are fixedly connected to each other. The angles formed by the screen plates and support plates after connection are all right angles. A cover plate is provided on the top surface of the two support plates. The left end of the cover plate is hinged to the top surface of the left support plate, and the right end is internally threaded with a bolt to the top surface of the right support plate. A feed pipe is fixedly installed inside the top surface of the cover plate. A collection frame is placed at the upper end of the base and positioned between the two support columns.

[0007] Preferably, a limiting plate is fixedly installed on the upper end of the base, and a connecting column is rotatably connected to the inside of the right side wall of the limiting plate. The left end of the connecting column is connected to the inside of the right side wall of the support frame through the inside of the limiting plate, and is fixedly connected to the rotating rod connected to the support plate. A connecting groove is provided inside the right side wall of the connecting column, and a limiting rod is hingedly installed inside the connecting groove. A handle is fixedly installed on the side wall of the limiting rod, so as to facilitate the rotation of the two support plates.

[0008] Preferably, four limiting seats are fixedly installed at equal intervals on the right side wall of the limiting plate, and each limiting seat has a slot inside the right side wall. The end of the limiting rod is engaged in the slot, thereby facilitating the stabilization of the screen plate after rotation.

[0009] Preferably, a mounting plate is fixedly installed on the bottom right side of the support frame, a vibration motor is fixedly installed on the left side wall of the mounting plate, a vibration plate is provided on the right side of the mounting plate, the output shaft of the vibration motor is fixedly connected to the left side wall of the vibration plate through the interior of the mounting plate, and multiple ball bearings are rotatably connected at equal intervals inside the right side wall of the vibration plate. The side walls of the ball bearings are all tightly fitted with the side wall of the support plate, thereby facilitating the vibration of the screen plate.

[0010] Preferably, the screen plates provided at the lower ends of the two support plates have the smallest screen hole diameter, which facilitates the screening of the finest concrete aggregate.

[0011] Preferably, the internal width of the support frame is greater than the width of the sieve plate, thereby facilitating the flipping of the sieve plate.

[0012] This invention provides a device for screening recycled concrete aggregates. It has the following advantages:

[0013] 1. The recycled concrete aggregate screening device, when used, is fixedly connected to each other through the side walls of three screen plates. During the screening process, the three screen plates rotate in sequence, which can easily move the screen plates at different positions to the bottom, so as to directly collect the concrete aggregates screened each time and improve the screening efficiency.

[0014] 2. In this recycled concrete aggregate screening device, the screen hole diameter of the screen plate set at the bottom is the smallest, which can prevent the concrete aggregate placed through the feed pipe from being screened with uneven particle size. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a side view of the present invention;

[0017] Figure 3 This is a schematic diagram of the vibration plate structure of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram of section A.

[0019] In the diagram, 1-base, 2-support frame, 3-support plate, 4-cover plate, 5-feed pipe, 6-screen plate, 7-bolt, 8-mounting plate, 9-vibration motor, 10-support column, 11-collection frame, 12-limiting plate, 13-limiting rod, 14-handle, 15-limiting seat, 16-slot, 17-vibration plate, 18-ball bearing, 19-connecting column, 20-connecting groove. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1

[0022] Please see Figure 1-4This utility model provides a recycled concrete aggregate screening device, including a base 1 and screen plates 6. A support frame 2 is provided at the upper end of the base 1. Support columns 10 are symmetrically fixedly installed between the two ends of the support frame 2 and the base 1. Support plates 3 are symmetrically arranged between the two end side walls inside the support frame 2, and the support plates 3 are rotatably connected to the side walls of the adjacent support frames 2 through rotating rods. Three screen plates 6 are provided, respectively located at the lower end and front and rear ends of two support plates 3. All three screen plates 6 are fixedly connected to the side walls of the two side support plates 3, and adjacent screen plates are fixedly connected to each other. All 6 are fixedly connected. The angles formed by the screen plate 6 and the support plate 3 after connection are all right angles. The top surfaces of the two support plates 3 are provided with cover plates 4. The left end of the cover plate 4 is hinged to the top surface of the left support plate 3, and the right end is internally threaded with bolts 7 to the top surface of the right support plate 3. The feed pipe 5 is fixedly installed inside the top surface of the cover plate 4. The upper end of the base 1 is placed with a collection frame 11 and is set between the two support columns 10. The bottom right side of the support frame 2 is fixedly installed with an mounting plate 8. The left side wall of the mounting plate 8 is fixedly installed with a vibration motor 9. The right side of the mounting plate 8 is provided with a vibration motor. Plate 17, the output shaft of the vibrating motor 9 is fixedly connected to the left side wall of the vibrating plate 17 through the interior of the mounting plate 8. Multiple ball bearings 18 are rotatably connected at equal intervals inside the right side wall of the vibrating plate 17. The side walls of the ball bearings 18 are tightly fitted to the side walls of the support plate 3. The screen plate 6 at the lower end of the two support plates 3 has the smallest screen hole diameter. The internal width of the support frame 2 is larger than the width of the screen plate 6. When screening concrete aggregate, the cover plate 4 is closed, and bolts 7 are used to secure the connection between the cover plate 4 and the support plate 3. Then, the concrete... Aggregate is injected between two support plates 3 through feed pipe 5. At the same time, vibration motor 9 is turned on, which drives vibration plate 17 to vibrate. In conjunction with ball bearings 18, the vibrating plate 6 vibrates, which facilitates the screening of concrete aggregate. By placing collection frame 11 on the upper end of base 1, the screened concrete aggregate can be put into the collection frame 11. The concrete aggregate that has undergone the first screening can be collected directly. Then, the support plate 3 is rotated to collect concrete aggregates of different particle sizes, which improves the collection rate of concrete aggregate.

[0023] Example 2

[0024] To ensure the stability of the screen plate 6 after rotation, in this embodiment, as follows: Figure 1-4As shown, a limiting plate 12 is fixedly installed on the upper end of the base 1. A connecting column 19 is rotatably connected to the inside of the right side wall of the limiting plate 12. The left end of the connecting column 19 is connected to the inside of the right side wall of the support frame 2 through the inside of the limiting plate 12, and is fixedly connected to the rotating rod connected to the support plate 3. A connecting groove 20 is provided inside the right side wall of the connecting column 19, and a limiting rod 13 is hingedly installed inside the connecting groove 20. A handle 14 is fixedly installed on the side wall of the limiting rod 13. The right side wall of the limiting plate 12 is fixedly installed with equal intervals. There are four limiting seats 15. Each limiting seat 15 has a slot 16 inside the right side wall. The end of the limiting rod 13 is engaged inside the slot 16. When the screen plate 6 is rotated, the limiting rod 13 is rotated by the handle 14, which can easily drive the connecting column 19 to rotate the support plate 3, so that the screen plate 6 can rotate as a whole. After the rotation is completed, the limiting rod 13 is engaged inside the slot 16, which can easily limit the position of the limiting rod 13 and prevent the screen plate 6 from shifting.

[0025] It should be noted that, in this embodiment, when using the recycled concrete aggregate screening device, if... Figure 1-4 As shown, when screening concrete aggregate, the cover plate 4 is closed, and the connection between the cover plate 4 and the support plate 4 is secured using bolts 7. Then, the concrete aggregate is injected through the feed pipe 5 between the two support plates 3. Simultaneously, the vibration motor 9 is turned on, causing the vibrating plate 17 to vibrate, which in turn vibrates the ball bearings 18 against the screen plate 6, facilitating the screening of the concrete aggregate. By placing the receiving frame 11 on top of the base 1, the screened concrete aggregate can enter the receiving frame 11 for direct initial screening. The concrete aggregates screened in the first step are collected. Then, the support plate 3 is rotated. When the screen plate 6 is rotated, the limit rod 13 is rotated by the handle 14. This allows the connecting column 19 to drive the support plate 3 to rotate, making it easy for the screen plate 6 to rotate as a whole. After the rotation is completed, the limit rod 13 is inserted into the slot 16, which can conveniently limit the position of the limit rod 13 and prevent the screen plate 6 from shifting. This process collects concrete aggregates of different particle sizes, improving the collection rate of concrete aggregates.

[0026] 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 device for screening recycled concrete aggregates, characterized in that: The system includes a base (1) and sieve plates (6). A support frame (2) is provided at the upper end of the base (1). Support columns (10) are symmetrically fixed between the support frame (2) and both ends of the base (1). Support plates (3) are symmetrically arranged between the two side walls inside the support frame (2). The support plates (3) are rotatably connected to the side walls of the adjacent support frame (2) through rotating rods. Three sieve plates (6) are provided, and they are respectively located at the lower end and the front and rear ends of two support plates (3). All three sieve plates (6) are connected to the two side support plates (3). The side walls are fixedly connected, and the adjacent screen plates (6) are fixedly connected. The angles formed by the screen plates (6) and the support plates (3) are all right angles. The top surfaces of the two support plates (3) are provided with cover plates (4). The left end of the cover plate (4) is hinged to the top surface of the left support plate (3), and the right end is threadedly connected to the top surface of the right support plate (3) with bolts (7). The top surface of the cover plate (4) is fixedly installed with a feed pipe (5). The upper end of the base (1) is provided with a collection frame (11) and is located between the two support columns (10).

2. The recycled concrete aggregate screening device according to claim 1, characterized in that: A limiting plate (12) is fixedly installed on the upper end of the base (1). A connecting column (19) is rotatably connected inside the right side wall of the limiting plate (12). The left end of the connecting column (19) is connected to the inside of the right side wall of the support frame (2) through the inside of the limiting plate (12), and is fixedly connected to the rotating rod connected to the support plate (3). A connecting groove (20) is provided inside the right side wall of the connecting column (19), and a limiting rod (13) is hingedly installed inside the connecting groove (20). A handle (14) is fixedly installed on the side wall of the limiting rod (13).

3. The recycled concrete aggregate screening device according to claim 2, characterized in that: Four limiting seats (15) are fixedly installed at equal intervals on the right side wall of the limiting plate (12). Each limiting seat (15) has a slot (16) inside its right side wall, and the end of the limiting rod (13) is engaged inside the slot (16).

4. The recycled concrete aggregate screening device according to claim 1, characterized in that: A mounting plate (8) is fixedly installed on the bottom right side of the support frame (2). A vibration motor (9) is fixedly installed on the left side wall of the mounting plate (8). A vibration plate (17) is provided on the right side of the mounting plate (8). The output shaft of the vibration motor (9) is fixedly connected to the left side wall of the vibration plate (17) through the interior of the mounting plate (8). Multiple balls (18) are rotatably connected at equal intervals inside the right side wall of the vibration plate (17). The side walls of the balls (18) are all tightly fitted to the side wall of the support plate (3).

5. The recycled concrete aggregate screening device according to claim 1, characterized in that: The sieve hole diameter of the sieve plate (6) provided at the lower end of the two support plates (3) is the smallest.

6. The recycled concrete aggregate screening device according to claim 1, characterized in that: The internal width of the support frame (2) is greater than the width of the sieve plate (6).

Images