A scalable construction and demolition waste screening machine

Abstract

The utility model discloses a kind of gradable construction waste screening machines, it is related to screening machine field, including vibrating screening machine, the vertical plate of vibrating screening machine rear side symmetry is provided;The inside of vibrating screening machine and the side of vertical plate are respectively rotatably connected with two rotating rods, and rotating rod passes through vibrating screening machine and is respectively connected with winding roller with vertical plate, and winding roller is connected with screen between;The surface of vibrating screening machine is hinged with guide plate close to upper side screen, and the surface of vibrating screening machine is hinged with cylinder that is hinged with guide plate;The inner wall of vibrating screening machine two sides is respectively symmetrically provided with the fixed plate that is contacted with screen bottom end.

Description

Technical Field

[0001] This utility model relates to the field of screening machine technology, and in particular to a gradeable construction waste screening machine. Background Technology

[0002] In the field of construction waste treatment, screening is a crucial step. Traditionally, construction waste is first crushed by a pulverizer, and then screened by a screening machine. Currently, screening machines typically use screens with fixed apertures. While this design is simple, it presents several inconveniences in practical applications. Due to the complex composition and wide particle size distribution of construction waste, a single-aperture screen cannot meet diverse screening needs. When different particle sizes of construction waste need to be screened, the screen must be replaced, which is not only time-consuming and labor-intensive but also significantly reduces screening efficiency. Furthermore, frequent screen replacements can cause wear and tear on the equipment, increasing maintenance costs.

[0003] With the rapid development of the construction industry, the requirements for the resource utilization of construction waste are becoming increasingly stringent. Traditional screening methods are no longer sufficient to meet the demands for efficient and flexible production. Therefore, it is particularly important to develop a new type of construction waste screening machine that can quickly change screens and adapt to different screening needs. Utility Model Content

[0004] This invention provides a gradeable construction waste screening machine, which solves the problems in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A gradeable construction waste screening machine includes a vibrating screen, wherein vertical plates are symmetrically arranged on the rear side of the vibrating screen; The vibrating screen has two rotating rods rotatably connected inside and on one side of the vertical plate. The rotating rods pass through the vibrating screen and are connected to the vertical plate by winding rollers. A screen is connected between the winding rollers. The vibrating screen is hinged to a guide plate near the upper screen, and a cylinder is hinged to the guide plate on the surface of the vibrating screen. The vibrating screen has symmetrical fixing plates on both sides of its inner wall that contact the bottom of the screen, and the top of the fixing plates is connected by bolts to a positioning plate for clamping the screen.

[0006] As a further description of the above technical solution: The screen is made of flexible polyurethane.

[0007] As a further description of the above technical solution: The cylinder body surface is connected to one end of the piston rod by an organ cover.

[0008] As a further description of the above technical solution: The inner wall of the vibrating screen is provided with an arc-shaped plate located above the winding roller.

[0009] As a further description of the above technical solution: A partition plate is fixedly connected to the rotating rod located on the surface of the vibrating screen and the vertical plate, and an annular plate is movably sleeved on the surface of the rotating rod. A rack is connected to the inner wall of the annular plate, and a gear is connected to the surface of the rack. A threaded rod is connected to the surface of the gear and is threadedly connected to the partition plate, the vibrating screen and the surface of the vertical plate.

[0010] As a further description of the above technical solution: The annular plate has a groove at its inner bottom, and a slider that is rotatably connected to the bottom end of the threaded rod is slidably connected inside the groove.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: In this invention, the design of the two-sided winding rollers allows for quick replacement of screens with different aperture sizes by rotating the two-sided winding rollers, greatly shortening the screen replacement time and improving screening efficiency. This is especially important for processing construction waste with complex composition and wide particle size distribution, and can significantly improve the overall efficiency of the production line.

[0012] In this invention, a cylinder is provided to push the guide plate to rotate and move, so as to guide the construction waste left on the upper screen to a distance, avoiding the accumulation of waste on the screen and affecting the screening effect. At the same time, the cylinder body and piston rod are connected to the bellows cover, which can shield the surface of the piston rod and prevent external dust from adhering to the surface of the piston rod and affecting its normal operation. Attached Figure Description

[0013] Figure 1 A schematic diagram of a gradeable construction waste screening machine; Figure 2 for Figure 1 Enlarged structural diagram at point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the annular plate in this utility model.

[0014] Legend: 1. Vibrating screen; 2. Vertical plate; 3. Rotating rod; 4. Rewinding roller; 5. Screen; 6. Guide plate; 7. Cylinder; 8. Fixed plate; 9. Positioning plate; 10. Arc plate; 11. Partition plate; 12. Annular plate; 13. Rack; 14. Gear; 15. Threaded rod; 16. Slide groove; 17. Sliding block. Detailed Implementation

[0015] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0016] Reference Figures 1-3 A gradeable construction waste screening machine includes a vibrating screen 1. Vertical plates 2 are symmetrically fixed to the rear side of the vibrating screen 1. To facilitate the replacement of screens 5 with different aperture sizes, two rotating rods 3 are rotatably connected to the surfaces of the vibrating screen 1 and the vertical plates 2. A winding roller 4 is connected to the surface of each rotating rod 3, and screens 5 with different aperture sizes are wound around the winding roller 4. This allows for the replacement of screens 5 with different aperture sizes by rotating the winding rollers 4 on both sides. Since the vibrating screen 1 and the vertical plates 2 are equipped with two rotating rods 3 and winding rollers 4, and the winding rollers 4 are also wound with screens 5, construction waste can be screened through two layers of screens 5. To prevent the construction waste from accumulating on both layers of screens 5, the upper screen 5 needs to be separated from the vibrating screen on one side. Machine 1 is hinged to guide plate 6, and then a cylinder 7 is hinged between the guide plate 6 and the surface of the vibrating screen 1. The operation of cylinder 7 can cause guide plate 6 to rotate and move, so as to guide the construction waste left on the previous screen 5 to a distance through guide plate 6, avoiding the construction waste on both sides of screen 5 from accumulating together and affecting the screening effect. In order to connect screen 5 with vibrating screen 1, the bottom end of screen 5 needs to contact the top end of fixed plate 8 on the inner wall of vibrating screen 1. Then, positioning plate 9 is placed on the top end of fixed plate 8 and connected with bolts. The positioning plate 9 and fixed plate 8 can clamp screen 5, so that it is connected to vibrating screen 1, and the vibrating screen 1 can drive screen 5 and the construction waste on its top to vibrate together.

[0017] Furthermore, in order to facilitate the winding of the screen 5, the material of the screen 5 needs to be flexible polyurethane. Polyurethane has high elasticity, wear resistance, and corrosion resistance, and can withstand greater vibration and impact. At the same time, it can be made into a flexible structure through injection molding to support the winding design.

[0018] Furthermore, to prevent external dust from entering the piston rod of cylinder 7, a bellows cover needs to be connected to the cylinder body and surface of cylinder 7 and one end of the piston rod. The bellows cover protects the surface of the piston rod, preventing external dust from adhering to the surface of the piston rod and affecting its subsequent normal operation.

[0019] Furthermore, in order to prevent the construction waste screened on the screen 5 from falling onto the screen 5 on the surface of the take-up roller 4, an arc-shaped plate 10 located above the take-up roller 4 needs to be installed on the inner wall of the vibrating screen 1. The arc-shaped plate 10 can block the construction waste and prevent it from falling onto the screen 5 on the surface of the take-up roller 4.

[0020] Furthermore, to facilitate the limiting of the winding roller 4 after the screen 5 is replaced, a partition plate 11 is fixedly connected to the rotating rod 3 on the surface of the vibrating screen 1 and the vertical plate 2. An annular plate 12 is movably sleeved on the surface of the rotating rod 3. A rack 13 is connected to the inner wall of the annular plate 12, and a gear 14 is connected to the surface of the rack 13. A threaded rod 15 is connected to the surface of the gear 14 and is threadedly connected to the partition plate 11, the vibrating screen 1, and the surface of the vertical plate 2. A groove 16 is opened at the bottom of the annular plate 12, and a slider 17 is slidably connected to the bottom of the threaded rod 15. By rotating the annular plate 12, it can rotate at the top of the threaded rod 15 through the slider 17 and the groove 16, thereby allowing the inner wall of the annular plate 12 to rotate. The rack 13 moves on the surface of the gear 14, which causes the gear 14 to drive the threaded rod 15 to rotate on the surface of the slider 17. The threaded rod 15 can be rotated into the threaded groove on the surface of the partition plate 11, the vibrating screen 1, and the vertical plate 2, thereby limiting the rotation rod 3 and the winding roller 4. The partition plate 11, the vibrating screen 1, and the vertical plate 2 are respectively provided with threaded grooves that connect to the threaded rod 15. Since the length of the vibrating screen 1 is limited, after changing the screen 5 with a different aperture, the threaded groove on the partition plate 11 will still rotate to the original position, that is, the position that is aligned with the threaded groove on the vibrating screen 1 or the vertical plate 2, so as to facilitate the connection of the threaded rod 15 with it. It is designed in advance according to the diameter of the winding roller 4 and the length of the screen 5.

[0021] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A scalable construction and demolition waste screening machine comprising a vibrating screen (1), characterised in that: Vertical plates (2) are symmetrically arranged on the rear side of the vibrating screen (1). The vibrating screen (1) has two rotating rods (3) rotatably connected inside and on one side of the vertical plate (2). The rotating rods (3) pass through the vibrating screen (1) and are respectively connected to the winding rollers (4) on the vertical plate (2). A screen (5) is connected between the winding rollers (4). The vibrating screen (1) has a guide plate (6) hinged to the surface near the upper screen (5), and a cylinder (7) hinged to the surface of the vibrating screen (1) is also hinged to the guide plate (6). The vibrating screen (1) has two symmetrical fixed plates (8) on its inner wall that are in contact with the bottom of the screen (5), and the top of the fixed plate (8) is connected by bolts to a positioning plate (9) for clamping the screen (5).

2. The gradeable construction waste screening machine according to claim 1, characterized in that: The screen (5) is made of flexible polyurethane.

3. The gradeable construction waste screening machine according to claim 1, characterized in that: The cylinder body surface of the cylinder (7) is connected to one end of the piston rod with an organ cover.

4. A gradeable construction waste screening machine according to claim 1, characterized in that: The inner wall of the vibrating screen (1) is provided with an arc plate (10) located above the winding roller (4).

5. A gradeable construction waste screening machine according to claim 1, characterized in that: A partition plate (11) is fixedly connected to the rotating rod (3) located on the surface of the vibrating screen (1) and the vertical plate (2), and an annular plate (12) is movably sleeved on the surface of the rotating rod (3). A rack (13) is connected to the inner wall of the annular plate (12), and a gear (14) is connected to the surface of the rack (13). A threaded rod (15) is connected to the surface of the gear (14) and is threaded to the surface of the partition plate (11), the vibrating screen (1) and the vertical plate (2).

6. A gradeable construction waste screening machine according to claim 5, characterized in that: The annular plate (12) has a groove (16) at its inner bottom end, and a slider (17) is slidably connected inside the groove (16) and is rotatably connected to the bottom end of the threaded rod (15).

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