An automatic vibrating screen filter for sediment in water conservancy projects
By designing an automatic vibrating sieve filter for sediment, a combination of filter plate components and a vibration mechanism is adopted to achieve three-stage screening of sediment and precise delivery of the diversion components. This solves the problems of low efficiency and mixing of sediment in water conservancy projects, and improves construction progress and environmental quality.
Patent Information
- Application Number
- CN202522665439.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-16
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-16
AI Technical Summary
Existing sediment treatment equipment in water conservancy projects suffers from problems such as low screening efficiency, single screening level, easy mixing of sediment, and unstable transportation, resulting in slow project progress and environmental pollution.
An automatic vibrating screen filter for sediment was designed. It adopts a combination of filter plate assembly and vibration mechanism to achieve three-stage screening of sediment. Through precise matching of diversion component and conveying system, it ensures seamless connection of graded conveying of sediment with different particle sizes.
It achieves precise three-stage screening of sediment, reduces the labor intensity of staff, reduces subsequent processing costs, and ensures the cleanliness of the construction environment and the stability of the equipment.
Smart Images
Figure CN224938588U_ABST
Abstract
Description
Technical Field
[0001] This utility model mainly relates to the technical field of sediment screening and filtration devices, specifically to an automatic vibrating sediment screening and filtration device for water conservancy projects. Background Technology
[0002] Sediment treatment is a crucial and routine task in the construction and operation of water conservancy projects. Whether it is river dredging, reservoir silt removal, or foundation construction in water conservancy facilities, effective screening and separation of sediment are necessary to meet the different particle size requirements of various construction stages, while avoiding impurities or substandard sediment particles from affecting project quality and normal equipment operation. Currently, the commonly used sediment screening equipment in water conservancy projects are mostly traditional fixed screen devices or simple vibrating screens. Traditional fixed screen devices rely on the natural fall of sediment due to gravity for screening, which is not only inefficient but also prone to clogging of the screen by sediment particles, leading to a sharp decline in screening effect and requiring frequent shutdowns for cleaning, seriously affecting the project progress. While existing simple vibrating screens have improved screening efficiency by adding a vibration structure, they generally suffer from the problem of single screening levels, only able to achieve single screening and unable to separate sediment into multiple particle size levels. If different particle sizes of sediment are required, multiple screening operations are often necessary, which is cumbersome, time-consuming, and labor-intensive. Furthermore, existing screening equipment has significant shortcomings in the collection and transportation of sediment after screening. Most devices lack dedicated diversion and guiding structures, leading to easy mixing of sediment of different particle sizes after screening, requiring additional sorting and increasing subsequent processing costs. Simultaneously, the poor fit between the conveying components and screening structure in some devices results in sediment spillage and accumulation during transfer, causing material waste, environmental pollution, and increased on-site cleanup. Therefore, developing a sediment screening device capable of automatic multi-stage screening, efficient diversion and collection, and stable operation is an urgent need to solve the current sediment treatment challenges in water conservancy projects. Utility Model Content
[0003] 1. The technical problem to be solved by the utility model: This utility model provides an automatic vibrating screen for sediment in water conservancy projects, which solves the technical problems existing in the background art.
[0004] 2. Technical Solution: To achieve the above objectives, the technical solution provided by this utility model is as follows: an automatic vibrating filtration device for sediment in water conservancy projects, comprising a support frame, a filtration chamber movably disposed on the support frame, a filter plate assembly inclinedly disposed within the filtration chamber, a vibration mechanism mounted on the outer wall of the filtration chamber, and the filtration chamber being driven to vibrate relative to the support frame by the vibration mechanism; a diversion assembly is disposed below the filter plate assembly, a feed bin I is installed on the lower left side of the diversion assembly, a conveyor belt I is arranged directly below the feed bin I, a conveyor belt II is correspondingly disposed at the outlet on the lower right side of the diversion assembly, and a conveyor belt III is disposed below the lower end of the filter plate assembly.
[0005] Preferably, the filter plate assembly includes a first filter plate, a second filter plate, and a connecting plate. The first filter plate and the second filter plate are fixedly connected by the connecting plate and have an overall Z-shaped structure, wherein the first filter plate is located at the upper position and the second filter plate is located at the lower position. The first filter plate has filter holes in a rectangular array, and the second filter plate has filter holes in a rectangular array, wherein the diameter of the first filter hole is smaller than the diameter of the second filter hole.
[0006] Preferably, the end of the filter plate two away from the filter plate one is integrally formed or fixedly connected with a guide plate. The guide plate extends downward at an angle away from the filter plate two, and the end of the guide plate is located directly above the conveyor belt three, for guiding the unscreened material of the filter plate two to the conveyor belt three.
[0007] Preferably, the vibration mechanism includes a mounting plate fixed to the lower outer wall of the screening chamber, and a vibration motor is bolted to the mounting plate; each of the four corners of the lower end of the screening chamber is vertically fixed with a connecting column one, and each of the four corners of the upper end of the support frame is vertically fixed with a connecting column two; a spring is sleeved between each pair of corresponding connecting columns one and two, the upper end of the spring is fixedly connected to the connecting column one, and the lower end is fixedly connected to the connecting column two, so as to realize the elastic movable connection between the screening chamber and the support frame.
[0008] Preferably, the diversion assembly includes a first diversion plate, a second diversion plate, and a baffle plate. The upper ends of the first diversion plate and the second diversion plate are fixedly connected and form an inverted V-shaped structure. Two baffle plates are provided, which are respectively vertically fixed at the front and rear ends of the first and second diversion plates to prevent material leakage from both sides. The first feed hopper is fixedly located directly below the first diversion plate, and the second conveyor belt is correspondingly arranged directly below the second diversion plate.
[0009] Preferably, the lower end of the second diverter plate has a discharge port in the middle, and the lower end of the discharge port is fixedly connected to a feed bin two. The feed bin two extends vertically downward and its lower end opening faces the upper surface of the conveyor belt two, which is used to guide the material to the conveyor belt two.
[0010] 3. Beneficial effects: Compared with the prior art, the technical solution provided by this utility model has the following advantages: This invention achieves precise three-stage screening of sediment by optimizing the structure of the filter plate assembly and the synergistic effect of the vibration mechanism. The vibration mechanism drives the sieve chamber to vibrate stably. Combined with the graded aperture design of filter plate one and filter plate two in the filter plate assembly, as well as the guiding structure at the end of the filter plate for unscreened coarse material, the three-stage separation of "minimum particle size - secondary particle size - unscreened coarse material" can be completed in one go. This ensures that the smallest particle size sediment passes through filter plate one, the secondary particle size passes through filter plate two, and the unscreened coarse material is directly discharged without repeated operations. The screening efficiency is improved compared with traditional equipment, and the labor intensity of workers is greatly reduced. This invention features a precisely matched diversion component and conveying system, achieving seamless connection between graded sediment and the corresponding conveyor belt. For sediment with the smallest particle size, the first diversion plate below the first filter plate directly connects to the first feed hopper and the first conveyor belt, ensuring that the smallest particles enter the designated collection area without mixing. For sediment with a secondary particle size, the second diversion plate below the second filter plate precisely guides the sediment to the second feed hopper via the outlet, ultimately conveying it to the second conveyor belt. For unscreened coarse material, the guide plate at the end of the filter plate assembly extends directly above the third conveyor belt, preventing coarse material from spilling. The entire diversion process is free from cross-mixing, reducing subsequent processing costs and ensuring a clean construction environment. This utility model device has a stable and reliable overall structure, suitable for three-stage screening requirements. The elastic connection design of connecting column one, connecting column two and spring in the vibration mechanism ensures uniform vibration effect in the screening chamber, meeting the screening requirements of different filter plates, and also buffers the impact of vibration on the support frame and other components, extending the service life of the device. In addition, the angle of each filter plate can be finely adjusted according to the characteristics of the sediment, and the speed of each conveyor belt can be independently controlled, adapting to the different sediment particle size requirements of different water conservancy engineering scenarios. It is convenient for later maintenance and repair, and has a wider range of applications. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 3 This is a schematic diagram of the structure of the present invention, omitting the conveyor belt. Figure 4 This is a schematic diagram of the vibration mechanism structure of this utility model; Figure 5 This is a schematic diagram of the current splitter component structure of this utility model; Figure 6 This is a schematic diagram of the filter plate assembly structure of this utility model.
[0012] Figure label: 1. Support frame; 2. Screening chamber; 3. Filter plate assembly; 31. Filter plate one; 32. Filter plate two; 33. Filter hole one; 34. Filter hole two; 35. Connecting plate; 36. Guide plate; 4. Feed bin one; 5. Conveyor belt one; 6. Vibration mechanism; 61. Mounting plate; 62. Vibration motor; 63. Connecting column one; 64. Connecting column two; 65. Spring; 7. Diverting assembly; 71. First diverting plate; 72. Second diverting plate; 73. Baffle plate; 74. Discharge port; 75. Feed bin two; 8. Conveyor belt two; 9. Conveyor belt three. Detailed Implementation
[0013] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.
[0014] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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 are not intended to 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.
[0015] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0016] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "fixing," and "equipped with" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0017] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Example
[0018] See attached document Figures 1-6 An automatic vibrating filtration device for sediment in water conservancy projects includes a support frame 1, a filtration chamber 2 movably mounted on the support frame 1, a filter plate assembly 3 inclinedly mounted inside the filtration chamber 2, a vibration mechanism 6 mounted on the outer wall of the filtration chamber 2, and the filtration chamber 2 vibrating relative to the support frame 1 driven by the vibration mechanism 6; a diversion assembly 7 is arranged below the filter plate assembly 3, a feed bin 4 is installed on the lower left side of the diversion assembly 7, a conveyor belt 5 is arranged directly below the feed bin 4, a conveyor belt 8 is correspondingly arranged at the outlet on the lower right side of the diversion assembly 7, and a conveyor belt 9 is arranged below the lower end of the filter plate assembly 3.
[0019] The filter plate assembly 3 includes a first filter plate 31, a second filter plate 32, and a connecting plate 35. The first filter plate 31 and the second filter plate 32 are fixedly connected by the connecting plate 35 and have an overall Z-shaped structure. The first filter plate 31 is located at the upper position, and the second filter plate 32 is located at the lower position. The first filter plate 31 has filter holes 33 arranged in a rectangular array, and the second filter plate 32 has filter holes 34 arranged in a rectangular array. The diameter of the first filter hole 33 is smaller than the diameter of the second filter hole 34.
[0020] The end of filter plate 2 32 away from filter plate 1 31 is integrally formed or fixedly connected with a guide plate 36. The guide plate 36 extends downward at an angle away from filter plate 2 32, and the end of the guide plate 36 is located directly above the conveyor belt 3 9, which is used to guide the unscreened material of filter plate 2 32 to the conveyor belt 3 9.
[0021] The vibration mechanism 6 includes a mounting plate 61 fixed to the outer wall of the lower end of the screening chamber 2, and a vibration motor 62 is bolted to the mounting plate 61. Each of the four corners of the lower end of the screening chamber 2 is vertically fixed with a connecting column 63, and each of the four corners of the upper end of the support frame 1 is vertically fixed with a connecting column 64. A spring 65 is sleeved between each pair of corresponding connecting columns 63 and 64. The upper end of the spring 65 is fixedly connected to the connecting column 63, and the lower end is fixedly connected to the connecting column 64, so as to realize the elastic movable connection between the screening chamber 2 and the support frame 1.
[0022] The diversion assembly 7 includes a first diversion plate 71, a second diversion plate 72, and a baffle plate 73. The upper end of the first diversion plate 71 is fixedly connected to the upper end of the second diversion plate 72 and the whole assembly has an inverted V-shaped structure. There are two baffle plates 73, which are respectively vertically fixed at the front and rear ends of the first diversion plate 71 and the second diversion plate 72 to prevent material from leaking from both sides. The feed hopper 4 is fixedly located directly below the first diversion plate 71, and the conveyor belt 8 is correspondingly arranged directly below the second diversion plate 72.
[0023] The lower middle part of the second diversion plate 72 has a discharge port 74. The lower end of the discharge port 74 is fixedly connected to the feed bin 75. The feed bin 75 extends vertically downward and its lower opening faces the upper surface of the conveyor belt 8, which is used to guide the material to the conveyor belt 8.
[0024] Working principle: First, the device is started, and the vibration motor 62 in the vibration mechanism 6 begins to work. Since the vibration motor 62 is fixed on the mounting plate 61 at the lower end of the screen chamber 2, the vibration force generated by the vibration motor 62 will drive the screen chamber 2 to vibrate as a whole. At the same time, the springs 65 sleeved between the connecting column 63 at the four corners of the lower end of the screen chamber 2 and the connecting column 64 at the four corners of the upper end of the support frame 1 will play an elastic support and buffering role during the vibration process, ensuring that the screen chamber 2 vibrates stably relative to the support frame 1, and the amplitude is controlled within 5-8mm, so as to avoid excessive vibration amplitude, which may cause mud and sand to splash or unstable vibration, affecting the grading and screening accuracy. Next, the sediment to be screened is conveyed to the filter plate assembly 3 above the screening chamber 2. The filter plate assembly 3 is inclined at 3-5°, with filter plate 1 31 located on the top layer and filter plate 2 32 located below and to the side of filter plate 1 31. Under the vibration of the screening chamber 2, the sediment will move downward along the inclined direction of filter plate 1 31, thus initiating the three-stage screening process. Minimum particle size sediment screening and conveyor belt 15 conveying first stage: As the sediment moves on filter plate 31, the filter holes 33, arranged in a rectangular array on filter plate 31, have the smallest diameter, such as 0.5-1mm. Filter holes 33 perform the first screening of the sediment, allowing only sediment particles with a diameter smaller than the smallest diameter of filter holes 33 to fall through. The falling sediment particles fall directly into the first diversion plate 71 directly below filter plate 31. The end of the first diversion plate 71 is precisely connected to the feed hopper 4. After being buffered by the feed hopper 4, the sediment falls smoothly onto the conveyor belt 5 directly below it. The conveyor belt 5 transports the sediment at a speed of 0.8-1.2m / s to the designated minimum diameter sediment collection area, such as a fine sand storage tank, completing the first stage of screening and conveying.
[0025] Secondary particle size sediment screening and conveyor belt transport: Second stage: After being screened by filter plate 31, the silt particles with a diameter larger than the aperture of filter hole 33 will continue to move downwards along filter plate 31 and eventually fall onto the filter plate 32 below. The filter holes 34 in the rectangular array on filter plate 32 are secondary holes with a diameter of 2-5mm, which will perform a second screening of the silt. The silt particles with a diameter between that of filter hole 33 and filter hole 34 will fall through filter hole 34, while the unscreened coarse materials such as coarse sand and small stones with a diameter larger than that of filter hole 34 will continue to move downwards along filter plate 32. The falling secondary particle size sediment will fall onto the diversion component 7 below the filter plate 32. The second diversion plate 72 in the diversion component is inclined at 10-15°, guiding the secondary particle size sediment to the discharge port 74 opened at the lower middle. The sediment enters the feed bin 75 through the discharge port 74, and then falls from the feed bin 75 onto the conveyor belt 8 directly below it. The conveyor belt 8 transports the secondary particle size sediment to the designated medium particle size sediment collection area, such as the medium sand stockpile, at a speed of 1.0-1.5 m / s, completing the second stage of screening and transportation. Unscreened coarse material collection and conveyor belt 39 conveying third stage: After being screened by filter plate 32, unscreened coarse materials such as coarse sand, small stones, and impurities with a particle size larger than the aperture of filter holes 34 will continue to move downwards along filter plate 32, eventually reaching the guide plate 36 at the end of filter plate 32 away from filter plate 31. The guide plate 36 is inclined at 15-20° away from filter plate 32, and its end is precisely positioned directly above conveyor belt 9 with a spacing of 5-8cm. The unscreened coarse materials will naturally slide down along the guide plate 36 onto conveyor belt 9. Conveyor belt 9 transports the unscreened coarse materials to the designated coarse material collection area, such as the impurity treatment area or the coarse sand reuse area, at a speed of 1.2-1.8m / s, completing the third-stage screening and conveying. At this point, the entire automatic three-stage silt filtration process is completed, achieving precise grading, sorting, and automatic conveying of "minimum particle size → conveyor belt 1 5, secondary particle size → conveyor belt 2 8, unscreened coarse material → conveyor belt 3 9". There is no cross-mixing throughout the process, resulting in high screening efficiency and stable operation.
[0026] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.
Claims
1. A device for automatic sand vibration screen filtering for hydraulic engineering, characterized in that: The system includes a support frame (1), on which a sieve chamber (2) is movably arranged. A filter plate assembly (3) is inclinedly arranged inside the sieve chamber (2). A vibration mechanism (6) is mounted on the outer wall of the sieve chamber (2), and the sieve chamber (2) is driven to vibrate relative to the support frame (1) by the vibration mechanism (6). A diversion assembly (7) is arranged below the filter plate assembly (3). A feed bin (4) is installed on the lower left side of the diversion assembly (7). A conveyor belt (5) is arranged directly below the feed bin (4). A conveyor belt (8) is arranged at the outlet on the lower right side of the diversion assembly (7). A conveyor belt (9) is arranged below the lower end of the filter plate assembly (3).
2. The automatic vibrating screen filter for sediment in water conservancy projects according to claim 1, characterized in that: The filter plate assembly (3) includes filter plate one (31), filter plate two (32) and connecting plate (35). Filter plate one (31) and filter plate two (32) are fixedly connected by connecting plate (35) and have an overall Z-shaped structure. Filter plate one (31) is located at the upper position and filter plate two (32) is located at the lower position. Filter plate one (31) has filter holes one (33) in a rectangular array and filter holes two (34) in a rectangular array on filter plate two (32). The aperture of filter holes one (33) is smaller than the aperture of filter holes two (34).
3. The automatic vibrating screen filter for sediment in water conservancy projects according to claim 2, characterized in that: The filter plate 2 (32) is integrally formed or fixedly connected to a guide plate (36) at one end away from the filter plate 1 (31). The guide plate (36) extends downward in a direction away from the filter plate 2 (32), and the end of the guide plate (36) is located directly above the conveyor belt 3 (9) to guide the unscreened material of the filter plate 2 (32) to the conveyor belt 3 (9).
4. The automatic vibrating screen filter for sediment in water conservancy projects according to claim 1, characterized in that: The vibration mechanism (6) includes a mounting plate (61) fixed to the lower outer wall of the sieve chamber (2), and a vibration motor (62) is bolted to the mounting plate (61); each of the four corners of the lower end of the sieve chamber (2) is vertically fixed with a connecting column one (63), and each of the four corners of the upper end of the support frame (1) is vertically fixed with a connecting column two (64). A spring (65) is sleeved between each pair of corresponding connecting columns one (63) and connecting columns two (64). The upper end of the spring (65) is fixedly connected to the connecting column one (63), and the lower end is fixedly connected to the connecting column two (64), so as to realize the elastic movable connection between the sieve chamber (2) and the support frame (1).
5. The automatic vibrating screen filter for sediment in water conservancy projects according to claim 1, characterized in that: The diversion assembly (7) includes a first diversion plate (71), a second diversion plate (72), and a baffle plate (73). The upper end of the first diversion plate (71) is fixedly connected to the upper end of the second diversion plate (72) and the whole assembly is in an inverted V-shaped structure. There are two baffle plates (73), which are respectively vertically fixed at the front and rear ends of the first diversion plate (71) and the second diversion plate (72) to prevent material leakage from both sides. The first feed bin (4) is fixedly located directly below the first diversion plate (71), and the second conveyor belt (8) is correspondingly arranged directly below the second diversion plate (72).
6. The automatic vibrating screen filter for sediment in water conservancy projects according to claim 5, characterized in that: The second diverter plate (72) has a discharge port (74) at the middle of its lower end. The lower end of the discharge port (74) is fixedly connected to a feed bin (75). The feed bin (75) extends vertically downward and its lower opening faces the upper surface of the conveyor belt (8), which is used to guide the material to the conveyor belt (8).