A drum screening device for solid waste garbage

Abstract

This utility model discloses a drum-type screening device for solid waste, including a base plate, a top plate above the base plate, and a hollow groove in the middle of the top plate. An electric telescopic rod for driving the top plate to rotate is installed on one side of the upper surface of the base plate. A first vertical plate and a second vertical plate are fixed on both sides of the upper surface of the top plate, respectively. This utility model includes a first vertical plate, a second vertical plate, a first rotating drum, a second rotating drum, a screen cylinder, a feed hopper, a motor, and an electric telescopic rod. The screen cylinder is fixed between the first and second rotating drums by a flange. The motor drives the second rotating drum to rotate, thereby driving the screen cylinder to rotate. When the screen cylinder is severely worn, it can be disassembled and replaced. Furthermore, depending on the specific size of the solid waste, the electric telescopic rod can be used to tilt the screen cylinder to different angles to ensure that the solid waste has sufficient time to move inside the screen cylinder for complete screening.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, and in particular to a drum-type screening device for solid waste. Background Technology

[0002] Rotary drum screening is a key sorting technology in solid waste treatment, mainly used to separate mixed waste (such as household waste and construction waste) according to particle size. Its core equipment is an inclined rotating drum with screens of different aperture sizes on the drum wall. After the waste enters the drum, it tumbles and rubs under the action of gravity and centrifugal force as the drum rotates. Fine particles fall through the corresponding screen holes into the lower collection device, while larger materials move along the drum's axial direction to the end for discharge, achieving efficient grading.

[0003] Current drum-type screening devices have a single-piece screen cylinder structure. When screening solid waste, the friction between the solid waste and the inner wall of the screen cylinder causes severe wear. If the screen cylinder needs to be replaced, the entire screen cylinder must be disassembled and replaced, which is inconvenient. In addition, the angle of the screen cylinder is fixed. When screening different types of solid waste, the residence time of the solid waste in the screen cylinder is different, resulting in poor screening effect. Secondly, in order to prevent the screen cylinder from clogging during the screening process, brushes are installed on the outside to clean the mesh of the screen cylinder. However, the brushes require a separate motor drive, which is wasteful. Therefore, further improvements are needed. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drum-type screening device for solid waste.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: a drum-type screening device for solid waste, comprising a base plate, a top plate above the base plate, and a hollow groove in the middle of the top plate. An electric telescopic rod for driving the top plate to rotate is installed on one side of the upper surface of the base plate. A first vertical plate and a second vertical plate are fixed on both sides of the upper surface of the top plate, respectively. A first rotating drum and a second rotating drum are rotatably connected through the middle of the first and second vertical plates via bearings. A screen cylinder is fixed between the first and second rotating drums via a flange. A feed hopper is fixed on the upper surface of the top plate and near the second rotating drum. A support plate is fixed on the upper surface of the second vertical plate. A horizontal shaft is rotatably connected through the middle of the support plate via bearings. A cleaning component is fixed at the end of the horizontal shaft near the upper part of the screen cylinder. A motor for driving the second rotating drum and the cleaning component to rotate is installed on the outer wall of the feed hopper.

[0006] Furthermore, a support column is fixed to the upper surface of the base plate away from the electric telescopic rod, and the top of the support column is hinged to the upper surface of the top plate. The bottom of the electric telescopic rod is hinged to the upper surface of the base plate, and the telescopic end of the electric telescopic rod is hinged to the lower surface of the top plate.

[0007] Furthermore, the discharge port at the bottom of the feed hopper extends into the interior of the second rotating drum.

[0008] Furthermore, a ring of protruding teeth is fixed on the outer wall of the second rotating drum, a driving gear is fixed at the output end of the motor, and a driven gear is fixed at the end of the horizontal shaft near the motor. Both the driven gear and the protruding teeth mesh with the driving gear.

[0009] Furthermore, the cleaning component includes a crossbar, and a slot is provided at one end of the crossbar near the horizontal axis. A locking block is fixed at one end of the horizontal axis near the cleaning component. The locking block is engaged inside the slot and is fixed inside the slot by bolts. Brush bristles are fixed on the surface of the crossbar.

[0010] Furthermore, several rubber rods are fixed at equal intervals on the surface of the crossbar.

[0011] The beneficial effects of this utility model are:

[0012] 1. In use, this utility model is a drum-type screening device for solid waste, which includes a first vertical plate, a second vertical plate, a first rotating drum, a second rotating drum, a screen cylinder, a feed hopper, a motor, and an electric telescopic rod. The screen cylinder is fixed between the first and second rotating drums by a flange. The motor drives the second rotating drum to rotate, thereby driving the screen cylinder to rotate. When the screen cylinder is severely worn, it can be disassembled and replaced. Furthermore, depending on the specific size of the solid waste, the electric telescopic rod can be used to tilt the screen cylinder to different angles to ensure that the solid waste has sufficient time to move inside the screen cylinder to achieve complete screening.

[0013] 2. When in use, this utility model is a drum-type screening device for solid waste. It is equipped with a cleaning component. While the motor drives the screen cylinder to rotate, the motor can also drive the cleaning component to rotate. The cleaning component cleans the garbage stuck in the screen cylinder mesh, realizing that one motor drives two components to work at the same time, reducing the investment in electrical equipment. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 : Overall sectional view of this utility model;

[0016] Figure 2 Partial perspective view of this utility model;

[0017] Figure 3 Partial perspective view of the cleaning component of this utility model;

[0018] Figure 4 The present utility model Figure 1 Enlarged view of point A in the middle.

[0019] The attached figures are labeled as follows:

[0020] 1. Base plate; 2. Top plate; 21. Hollowed-out groove; 3. First vertical plate; 4. Second vertical plate; 5. First rotating drum; 6. Second rotating drum; 61. Convex tooth; 7. Screen cylinder; 8. Feed hopper; 9. Support plate; 10. Horizontal shaft; 101. Locking block; 102. Driven gear; 11. Cleaning assembly; 111. Crossbar; 112. Locking groove; 113. Brush bristles; 114. Rubber rod; 12. Motor; 13. Drive gear; 14. Support column; 15. Electric telescopic rod. Detailed Implementation

[0021] 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.

[0022] like Figures 1-4 As shown, a drum-type screening device for solid waste is disclosed, comprising a base plate 1, a top plate 2 above the base plate 1, and a hollow groove 21 in the middle of the top plate 2. An electric telescopic rod 15 for driving the rotation of the top plate 2 is installed on one side of the upper surface of the base plate 1. A first vertical plate 3 and a second vertical plate 4 are fixed on both sides of the upper surface of the top plate 2, respectively. A first rotating drum 5 and a second rotating drum 6 are rotatably connected through the middle of the first vertical plate 3 and the second vertical plate 4 via bearings. A screen cylinder 7 is fixed between the first rotating drum 5 and the second rotating drum 6 via a flange. A feed hopper 8 is fixed on the upper surface of the top plate 2 near the second rotating drum 6. A support plate 9 is fixed on the upper surface of the second vertical plate 4. A horizontal shaft 10 is rotatably connected through the middle of the support plate 9 via bearings. A cleaning component 11 is fixed at one end of the horizontal shaft 10 near the upper part of the screen cylinder 7. A motor 12 for driving the rotation of the second rotating drum 6 and the cleaning component 11 is installed on the outer wall of the feed hopper 8.

[0023] In this embodiment, the upper surface of the base plate 1 is also equipped with a controller with a screen: Siemens SIMATIC KP1200 series (HMI+PLC integrated machine) specific model: KP1212 Basic PN (6AV2123-2GB03-0AX0). The models of the motor 12 and the electric telescopic rod 15 are not limited. The controller controls the operation of the motor 12 and the electric telescopic rod 15.

[0024] A support column 14 is fixed on the upper surface of the base plate 1 away from the electric telescopic rod 15. The top of the support column 14 is hinged to the upper surface of the top plate 2, the bottom of the electric telescopic rod 15 is hinged to the upper surface of the base plate 1, and the telescopic end of the electric telescopic rod 15 is hinged to the lower surface of the top plate 2.

[0025] By controlling the extension or retraction of the electric telescopic rod 15, the electric telescopic rod 15 can drive the top plate 2 to rotate around the top of the support column 14, thereby adjusting the tilt angle of the top plate 2 and the screen cylinder 7. When screening different types of solid waste, by adjusting the angle of the screen cylinder 7, it can be ensured that the solid waste stays in the screen cylinder 7 for a sufficient time to be completely screened.

[0026] The bottom outlet of the feed hopper 8 extends into the interior of the second rotating drum 6.

[0027] When adding solid waste, it is added directly to the top of the feed hopper 8. The solid waste then enters the second rotating drum 6 through the discharge port at the bottom of the feed hopper 8, and then enters the screen cylinder 7.

[0028] A ring of protruding teeth 61 is fixed on the outer wall of the second rotating drum 6. A drive gear 13 is fixed at the output end of the motor 12. A driven gear 102 is fixed at the end of the horizontal shaft 10 near the motor 12. Both the driven gear 102 and the protruding teeth 61 mesh with the drive gear 13.

[0029] After the motor 12 is started, the drive gear 13 will drive the second rotating drum 6 with the toothed 61 to rotate, thereby driving the screen cylinder 7 to rotate. The drive gear 13 will also drive the driven gear 102 to rotate, thereby driving the horizontal shaft 10 and the cleaning component 11 to rotate. The cleaning component 11 rotates in the same direction as the screen cylinder 7.

[0030] The cleaning assembly 11 includes a crossbar 111, and a slot 112 is provided at one end of the crossbar 111 near the horizontal axis 10. A locking block 101 is fixed at one end of the horizontal axis 10 near the cleaning assembly 11. The locking block 101 is engaged inside the slot 112 and is fixed inside the slot 112 by bolts. Brush bristles 113 are fixed on the surface of the crossbar 111.

[0031] When the horizontal shaft 10 drives the horizontal bar 111 and the brush 113 to rotate, the horizontal bar 111 rotates in the same direction as the screen cylinder 7. Therefore, the brush 113 at the bottom of the horizontal bar 111 rotates in the opposite direction to the screen cylinder 7, thus using the brush 113 to clean solid waste particles stuck inside the mesh. Secondly, when the brush 113 is severely worn, the horizontal bar 111 can be disassembled for complete replacement.

[0032] Several rubber rods 114 are fixed at equal intervals on the surface of the crossbar 111.

[0033] In this embodiment, the length of the rubber rod 114 is greater than the length of the brush bristles 113. As the crossbar 111 rotates, the rubber rod 114 will continuously strike the outer wall of the screen cylinder 7, thereby improving the cleaning effect of solid waste inside the mesh.

[0034] Working principle: First, the electric telescopic rod 15 is activated to extend or shorten according to the solid waste to be processed, thereby changing the inclination of the screen cylinder 7. Then, the motor 12 is started to drive the screen cylinder 7 and the cleaning assembly 11 to rotate. Solid waste is then added to the feed hopper 8 and enters the screen cylinder 7 from the second rotating drum 6. As the screen cylinder 7 rotates, the solid waste tumbles inside. Small particles of solid waste pass through the mesh of the screen cylinder 7 and fall through the perforated groove 21, while large particles of solid waste are discharged from the other side of the screen cylinder 7. When the screen cylinder 7 is severely worn, it can be disassembled and replaced separately.

[0035] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A drum-type screening device for solid waste, comprising a base plate (1), characterized in that: A top plate (2) is provided above the bottom plate (1), and a hollow groove (21) is provided in the middle of the top plate (2). An electric telescopic rod (15) for driving the top plate (2) to rotate is installed on one side of the upper surface of the bottom plate (1). A first vertical plate (3) and a second vertical plate (4) are fixed on both sides of the upper surface of the top plate (2). A first rotating cylinder (5) and a second rotating cylinder (6) are respectively rotatably connected through the middle of the first vertical plate (3) and the second vertical plate (4) via bearings. A screen cylinder (7) is fixed by a flange. A feed hopper (8) is fixed on the upper surface of the top plate (2) and near the second rotating cylinder (6). A support plate (9) is fixed on the upper surface of the second vertical plate (4). A horizontal shaft (10) is rotatably connected through the middle of the support plate (9) and via a bearing. A cleaning assembly (11) is fixed at one end of the horizontal shaft (10) near the upper part of the screen cylinder (7). A motor (12) for driving the second rotating cylinder (6) and the cleaning assembly (11) to rotate is installed on the outer wall of the feed hopper (8).

2. The drum-type screening device for solid waste according to claim 1, characterized in that: A support column (14) is fixed on the upper surface of the base plate (1) away from the electric telescopic rod (15), and the top of the support column (14) is hinged to the upper surface of the top plate (2), the bottom of the electric telescopic rod (15) is hinged to the upper surface of the base plate (1), and the telescopic end of the electric telescopic rod (15) is hinged to the lower surface of the top plate (2).

3. The drum-type screening device for solid waste according to claim 1, characterized in that: The bottom outlet of the feed hopper (8) extends into the interior of the second rotating drum (6).

4. A drum-type screening device for solid waste according to claim 1, characterized in that: The outer wall of the second rotating drum (6) is fixed with a ring of protruding teeth (61), the output end of the motor (12) is fixed with a driving gear (13), and the end of the horizontal shaft (10) near the motor (12) is fixed with a driven gear (102). The driven gear (102) and the protruding teeth (61) both mesh with the driving gear (13).

5. A drum-type screening device for solid waste according to claim 1, characterized in that: The cleaning assembly (11) includes a crossbar (111), and a slot (112) is provided at one end of the crossbar (111) near the horizontal axis (10). A locking block (101) is fixed at one end of the horizontal axis (10) near the cleaning assembly (11). The locking block (101) is engaged inside the slot (112) and is fixed inside the slot (112) by bolts. Brush bristles (113) are fixed on the surface of the crossbar (111).

6. A drum-type screening device for solid waste according to claim 5, characterized in that: Several rubber rods (114) are fixed at equal intervals on the surface of the crossbar (111).

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