Channel dredging soil screening and different particle size particle classification processing equipment

Abstract

The utility model discloses a waterway dredged soil screening and different size particle grading treatment equipment belongs to dredged soil screening field, waterway dredged soil screening and different size particle grading treatment equipment, including screening box, the side surface installation of screening box has feed pipe and controller, the inner chamber equidistance of screening box is provided with a plurality of screening mechanism, the bottom installation of screening mechanism has linkage lever, the side surface installation of screening box has a plurality of discharge pipe, the bottom installation of screening box has blowdown pipe, the inner chamber bottom of screening box is provided with drive mechanism, the inner chamber top of screening box is provided with cleaning mechanism, it can utilize a plurality of screening mechanism, can fast screening of the particle of different size in dredged soil, through setting linkage lever and drive mechanism, can drive a plurality of screening mechanism reciprocating motion simultaneously, avoid the accumulation of dredged soil in the screening process, improved the screening efficiency of dredged soil.

Description

Technical Field

[0001] This utility model relates to the field of dredged soil screening, and more specifically, to equipment for screening dredged soil from waterways and classifying particles of different sizes. Background Technology

[0002] In waterway dredging projects, a large amount of dredged soil is generated. This dredged soil has a wide range of particle size distribution and complex composition, including particles of different sizes such as mud, gravel, and clay. Therefore, the dredged soil needs to be screened.

[0003] Existing screening equipment still has certain shortcomings in use. For example, the screening equipment has a simple structure and can only perform single-stage screening at a time. For materials that require precise grading, multiple screening operations are required, which consumes a lot of time and manpower and seriously affects screening efficiency. Utility Model Content

[0004] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide a screening and grading equipment for dredged soil and particles of different sizes, which can improve the screening efficiency of dredged soil and avoid repeated operations.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution.

[0006] A screening and grading device for dredged soil from waterways, comprising a screening box, a feed pipe and a controller mounted on the side of the screening box, multiple screening mechanisms evenly spaced inside the screening box, a linkage rod mounted at the bottom of each screening mechanism, multiple discharge pipes mounted on the side of the screening box, a sewage discharge pipe mounted at the bottom of the screening box, a drive mechanism at the bottom of the inner cavity of the screening box, and a cleaning mechanism at the top of the inner cavity of the screening box.

[0007] Furthermore, the screening mechanism includes a mounting frame slidably connected to the inner wall of the screening box. A screen is fixedly mounted on the inner wall of the mounting frame. A limit slider is fixedly connected to one side of the mounting frame. A limit groove is formed on the inner wall of the screening box relative to the longitudinal movement trajectory of the limit slider. A rotating shaft is rotatably connected to the other side of the mounting frame. Both ends of the rotating shaft are fixedly connected to the inner wall of the screening box. Torsion springs are provided on the inner sides of the mounting frame and the rotating shaft. Both ends of the torsion springs are fixedly connected to the surface of the rotating shaft and the inner wall of the mounting frame, respectively. A linkage rod is fixedly connected to the bottom of the mounting frame. The aperture values ​​of the multiple screens decrease sequentially from top to bottom.

[0008] Furthermore, the mounting frame is inclined, and an inclined guide plate is fixedly connected to the bottom of the mounting frame.

[0009] Furthermore, the lower ends of the plurality of discharge pipes and the plurality of mounting frames are correspondingly arranged, the discharge pipes are inclined, and the discharge pipes and the screening box are interconnected.

[0010] Furthermore, the driving mechanism includes a cam disposed in the inner cavity of the screening box, a drive shaft is fixedly connected to one side of the cam, one end of the drive shaft passes through the screening box, a motor is fixedly connected to one end of the drive shaft, the motor is fixedly mounted on the screening box, the drive shaft and the screening box are rotatably connected, and the linkage rod and the cam cooperate with each other.

[0011] Furthermore, an annular groove is formed on the surface of the cam, and the bottom end of the linkage rod contacts the inner wall of the annular groove.

[0012] Furthermore, the cleaning mechanism includes a hollow plate fixedly installed at the top of the inner cavity of the screening box. Multiple high-pressure nozzles are installed at the bottom of the hollow plate relative to the screen. A water inlet pipe is fixedly connected to the top of the hollow plate. The water inlet pipe passes through the top of the screening box and communicates with the multiple high-pressure nozzles through the hollow plate.

[0013] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) This scheme utilizes multiple screening mechanisms to quickly screen particles of different sizes in dredged soil. By setting up linkage rods and drive mechanisms, multiple screening mechanisms can be driven to move up and down simultaneously, avoiding accumulation of dredged soil during the screening process and improving the screening efficiency of dredged soil.

[0014] (2) This scheme uses a discharge pipe to collect the particles after screening by multiple screening mechanisms. By setting up a cleaning mechanism, the screening mechanism can be cleaned to avoid blockage. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the front cross-sectional structure of this utility model; Figure 3 This is a schematic diagram of the screening mechanism in this utility model; Figure 4 This is a partial cross-sectional view of the mounting frame in this utility model. Figure 5 This is a schematic diagram of the drive mechanism structure in this utility model; Figure 6This is a schematic diagram of the cleaning mechanism in this utility model.

[0016] Explanation of the labels in the diagram: 1. Screening box; 2. Feed pipe; 3. Controller; 4. Screening mechanism; 5. Linkage rod; 6. Discharge pipe; 7. Sewage pipe; 8. Drive mechanism; 9. Cleaning mechanism; 41. Mounting frame; 42. Screen; 43. Limiting slider; 44. Limiting groove; 45. Rotating shaft; 46. Torsion spring; 47. Guide plate; 81. Cam; 82. Drive shaft; 83. Motor; 84. Annular groove; 91. Hollow core plate; 92. High-pressure nozzle; 93. Water inlet pipe. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example 1: Please see Figure 1-6This is a screening and grading equipment for dredged soil from a waterway, comprising a screening box 1, a feed pipe 2 and a controller 3 mounted on the side of the screening box 1, multiple screening mechanisms 4 evenly spaced inside the screening box 1, a linkage rod 5 mounted at the bottom of each screening mechanism 4, multiple discharge pipes 6 mounted on the side of the screening box 1, a sewage discharge pipe 7 mounted at the bottom of the screening box 1, a drive mechanism 8 at the bottom of the inner cavity of the screening box 1, and a cleaning mechanism 9 at the top of the inner cavity of the screening box 1. During screening, the dredged soil is transported to the screening box 1 through the feed pipe 2. Inside, at the same time, the drive mechanism 8 is opened by the controller 3. Under the connection of the linkage rod 5, multiple screening mechanisms 4 can move up and down reciprocally. Dredged soil can be screened by multiple screening mechanisms 4. Large particles of dredged soil are discharged through the corresponding discharge pipe 6, and small particles of dredged soil are screened through the screening mechanism 4 at the bottom. The screening of dredged soil can be completed by reciprocating in this way. The sewage generated during the screening process is discharged through the sewage pipe 7. After the screening is completed, the screening mechanism 4 can be cleaned by the cleaning mechanism 9 to avoid blockage.

[0021] The screening mechanism 4 includes a mounting frame 41 slidably connected to the inner wall of the screening box 1. A screen 42 is fixedly mounted on the inner wall of the mounting frame 41. A limiting slider 43 is fixedly connected to one side of the mounting frame 41. A limiting groove 44 is formed on the inner wall of the screening box 1 relative to the longitudinal movement trajectory of the limiting slider 43. A rotating shaft 45 is rotatably connected to the other side of the mounting frame 41. Both ends of the rotating shaft 45 are fixedly connected to the inner wall of the screening box 1. Torsion springs 46 are provided inside the mounting frame 41 and the rotating shaft 45. Both ends of the torsion springs 46 are fixedly connected to the surface of the rotating shaft 45 and the inner wall of the mounting frame 41, respectively. A linkage rod 5 is fixedly connected to the bottom of the mounting frame 41. The aperture values ​​of the multiple screens 42 decrease sequentially from top to bottom. The mounting frame 41 is inclined, and an inclined guide plate 47 is fixedly connected to the bottom of the mounting frame 41. When dredged soil falls onto the screening mechanism 4 for screening, the dredged soil passes through the inclined guide plate 47. The limiting slider 43 moves, and large particles of dredged soil are discharged through the discharge pipe 6, while small particles of dredged soil pass through the screen 42 and fall onto the guide plate 47 to be transported to the bottom screening mechanism 4. At the same time, they fall onto the high end of the screening mechanism 4, and the above steps can be repeated for screening. When the drive mechanism 8 is working, it lifts the linkage rod 5, which in turn drives the linkage rod 5 to move up and down reciprocally. When the linkage rod 5 moves upward, the right side of the mounting frame 41 rotates around the rotating shaft 45 and the torsion spring 46 is compressed, while the left side slides upward in the limiting slide groove 44 through the limiting slider 43. When the limiting slider 43 moves to the highest position, it loses the lifting force of the drive mechanism 8 and the restoring force of the torsion spring 46, which allows the screening mechanism 4 to move up and down. This reciprocating motion allows the screening mechanism 4 to move back and forth. With the connection of multiple linkage rods 5, multiple screening mechanisms 4 can move back and forth synchronously.

[0022] The lower ends of multiple discharge pipes 6 and multiple mounting frames 41 are correspondingly arranged. The discharge pipes 6 are inclined and are interconnected with the screening box 1. With this arrangement, the dredged soil can be discharged through the discharge pipes 6 after it moves to the lower end of the mounting frame 41.

[0023] Furthermore, the drive mechanism 8 includes a cam 81 disposed in the inner cavity of the screening box 1. A transmission shaft 82 is fixedly connected to one side of the cam 81. One end of the transmission shaft 82 passes through the screening box 1, and a motor 83 is fixedly connected to the other end of the transmission shaft 82. The motor 83 is fixedly mounted on the screening box 1. The transmission shaft 82 and the screening box 1 are rotatably connected. The linkage rod 5 and the cam 81 cooperate with each other. By turning on the motor 83, the transmission shaft 82 is driven to rotate, which in turn drives the cam 81 to rotate. Through the different positions of the linkage rod 5 and the cam 81, the linkage rod 5 can move up and down reciprocally, which in turn causes the screening mechanism 4 to move up and down reciprocally.

[0024] The cam 81 has an annular groove 84 on its surface, and the bottom end of the linkage rod 5 contacts the inner wall of the annular groove 84. By sliding the linkage rod 5 in the annular groove 84, the linkage rod 5 can be limited, thereby increasing the stability between the linkage rod 5 and the cam 81.

[0025] It should also be noted that the cleaning mechanism 9 includes a hollow plate 91 fixedly installed at the top of the inner cavity of the screening box 1. Multiple high-pressure nozzles 92 are installed at the bottom of the hollow plate 91 relative to the screen 42. A water inlet pipe 93 is fixedly connected to the top of the hollow plate 91. The water inlet pipe 93 passes through the top of the screening box 1 and is interconnected with the multiple high-pressure nozzles 92 through the hollow plate 91. A water pump is connected to the water inlet pipe 93, and cleaning water is injected into the hollow plate 91 through the water inlet pipe 93. Then, the multiple high-pressure nozzles 92 spray water into the screening box 1, thereby pushing out the blockage in the slots of the screen 42 and thus playing a role in preventing blockage.

[0026] The above description is merely a preferred embodiment of this utility model; however, the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and its improved concept, should be included within the protection scope of this utility model.

Claims

1. A screening and grading device for dredged soil from waterways, comprising a screening box (1), wherein a feed pipe (2) and a controller (3) are installed on the side of the screening box (1), characterized in that: The screening box (1) has multiple screening mechanisms (4) arranged at equal intervals in its inner cavity. A linkage rod (5) is installed at the bottom of the screening mechanism (4). Multiple discharge pipes (6) are installed on the side of the screening box (1). A sewage pipe (7) is installed at the bottom of the screening box (1). A drive mechanism (8) is provided at the bottom of the inner cavity of the screening box (1). A cleaning mechanism (9) is provided at the top of the inner cavity of the screening box (1).

2. The equipment for screening dredged soil and classifying particles of different sizes according to claim 1, characterized in that: The screening mechanism (4) includes a mounting frame (41) that is slidably connected to the inner wall of the screening box (1). A screen (42) is fixedly installed on the inner wall of the mounting frame (41). A limit slider (43) is fixedly connected to one side of the mounting frame (41). A limit groove (44) is opened on the inner wall of the screening box (1) relative to the longitudinal movement trajectory of the limit slider (43). A rotating shaft (45) is rotatably connected to the other side of the mounting frame (41). Both ends of the rotating shaft (45) are fixedly connected to the inner wall of the screening box (1). A torsion spring (46) is provided on the inner side of the mounting frame (41) and the rotating shaft (45). Both ends of the torsion spring (46) are fixedly connected to the surface of the rotating shaft (45) and the inner wall of the mounting frame (41). The linkage rod (5) is fixedly connected to the bottom of the mounting frame (41). The aperture values ​​of the multiple screens (42) decrease sequentially from top to bottom.

3. The equipment for screening dredged soil and classifying particles of different sizes according to claim 2, characterized in that: The mounting frame (41) is inclined, and the bottom of the mounting frame (41) is fixedly connected to an inclined guide plate (47).

4. The equipment for screening dredged soil and classifying particles of different sizes according to claim 2, characterized in that: The lower ends of the plurality of discharge pipes (6) and the plurality of mounting frames (41) are correspondingly arranged, the discharge pipes (6) are inclined, and the discharge pipes (6) and the screening box (1) are interconnected.

5. The equipment for screening dredged soil and classifying particles of different sizes according to claim 1, characterized in that: The drive mechanism (8) includes a cam (81) disposed in the inner cavity of the screening box (1). A drive shaft (82) is fixedly connected to one side of the cam (81). One end of the drive shaft (82) passes through the screening box (1). A motor (83) is fixedly connected to one end of the drive shaft (82). The motor (83) is fixedly installed on the screening box (1). The drive shaft (82) and the screening box (1) are rotatably connected. The linkage rod (5) and the cam (81) cooperate with each other.

6. The equipment for screening dredged soil and classifying particles of different sizes according to claim 5, characterized in that: The surface of the cam (81) is provided with an annular groove (84), and the bottom end of the linkage rod (5) is in contact with the inner wall of the annular groove (84).

7. The equipment for screening dredged soil and classifying particles of different sizes according to claim 2, characterized in that: The cleaning mechanism (9) includes a hollow plate (91) fixedly installed on the top of the inner cavity of the screening box (1). Multiple high-pressure nozzles (92) are installed at the bottom of the hollow plate (91) relative to the screen (42). A water inlet pipe (93) is fixedly connected to the top of the hollow plate (91). The water inlet pipe (93) passes through the top of the screening box (1) and is interconnected with the multiple high-pressure nozzles (92) through the hollow plate (91).

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