A multi-stage vibrating screen for mining
By designing multi-layer screens and material distribution components, the problem of low screening accuracy and efficiency of traditional mining vibrating screens is solved, achieving multi-stage screening and uniform material distribution, thus improving screening accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI CHENGYOU IND & MINING CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-02
AI Technical Summary
Traditional mining vibrating screens are single-layer screens, which cannot process materials with multiple particle size requirements at the same time. The screening accuracy is not high, and the materials tend to accumulate when dumping, resulting in low screening efficiency.
By employing multi-layered screens and cloth assemblies with different apertures, combined with the vibration of a vibrating motor and springs, multi-stage screening is achieved, and the cloth assembly ensures uniform material distribution, preventing accumulation.
It improves screening accuracy and efficiency, enables the separate collection of materials of different particle sizes, avoids local accumulation, and enhances screening efficiency.
Smart Images
Figure CN224308919U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mining equipment technology, specifically to a multi-stage vibrating screen for mining. Background Technology
[0002] Mining vibrating screens are screening equipment specifically designed for industries such as mining, coal, building materials, and chemicals. Their core working principle is based on the excitation force generated by a vibrating motor or exciter, causing the screen body to vibrate periodically in a specific direction. The material on the screen surface is subjected to both vibration and gravity, resulting in parabolic motion, thus allowing it to pass through the screen in layers according to particle size, completing the grading process.
[0003] Traditional mining vibrating screens are mostly single-layer screens. Although they are simple in design and have relatively low manufacturing and maintenance costs, they can only achieve separation of a single particle size and cannot process materials with multiple particle size requirements at the same time. The screening accuracy is not high. Moreover, when raw coal is directly poured onto the screen, the material accumulates in the middle of the screen surface and the material layer at the edge is thin, which prolongs the screening time and the screening efficiency needs to be further improved. Utility Model Content
[0004] I. Technical problems to be solved
[0005] The technical problem to be solved by this utility model is to overcome the above-mentioned technical difficulties and provide a multi-stage vibrating screen for mining. It adopts multiple layers of screens with different apertures to achieve multi-stage screening, improve screening accuracy and efficiency, and can make the material evenly distributed on the screen surface, avoid local accumulation, and improve screening efficiency.
[0006] II. Technical Solution
[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a multi-stage vibrating screen for mining, including a housing, with support legs at each of the four corners of the housing, a discharge port on one side of the housing, a vibrating motor at the top of the housing, and fixing blocks at both ends of both sides of the housing. At least one spring is provided between each fixing block and its corresponding support leg. The screen also includes:
[0008] Screens; several screens are arranged at an angle inside the box and are set down in a stepped manner. The material falling from the top rear screen flows down to the bottom front screen in sequence. The screens have different aperture sizes. A material collection structure is provided inside the box and below the screens.
[0009] Fabric assembly; the fabric assembly is located on one side of the box and can evenly distribute the material onto the screen.
[0010] As an improvement, the fabric assembly includes a fixing plate and a storage box; one side of each support leg is provided with an inverted L-shaped plate, the fixing plate is fixedly mounted on the top of the L-shaped plate, the storage box is mounted on the top of the fixing plate, and the bottom of the storage box is provided with connecting rods at the four corners, the bottom of the connecting rods is slidably connected to the fixing plate, and a conveying pipe is provided on one side of the storage box; the fabric assembly also includes a motor, a gear, and a rack; the motor is located at the bottom of the fixing plate, the fixing plate is provided with a rotating shaft, the gear is fixedly mounted on the top of the rotating shaft, the bottom of the rotating shaft is connected to the output end of the motor, the bottom of the storage box is provided with a vertical plate, and the rack is fixedly mounted on the bottom of the vertical plate and meshes with the gear.
[0011] As an improvement, the top two sides of the fixing plate are provided with sliding grooves for use with the connecting rod.
[0012] As an improvement, the collection structure includes a collection box; the collection box is placed directly at the bottom of the box body, and the box body is provided with multiple partitions to divide the box body into multiple collection spaces, which correspond to the screens above in sequence. The box body is provided with a locking component for use with the collection box to fix the collection box.
[0013] As an improvement, the locking assembly includes a baffle disposed inside the box and near the discharge port. Both ends of the other side of the box are provided with damping shafts that are rotatably connected. One end of the damping shaft is provided with a knob, and a limiting plate for use with the collection box is provided on the damping shaft.
[0014] As an improvement,
[0015] III. Beneficial Effects
[0016] The advantages of this utility model compared with the prior art are as follows:
[0017] 1. By using multiple inclined screens with different mesh sizes, multi-stage screening can be achieved, improving screening accuracy and efficiency. Furthermore, with the assistance of a collection box, materials with different particle size requirements can be collected separately.
[0018] 2. Through the fixed plate, storage box, connecting rod, chute, motor, rotating shaft, gear, rack and pinion and vertical plate, the storage box and conveying pipe can move back and forth continuously, so as to evenly distribute the material on the screen surface, avoid local accumulation, facilitate subsequent screening and improve screening efficiency. Attached Figure Description
[0019] Figure 1 This is a three-dimensional schematic diagram of a multi-stage vibrating screen for mining according to this utility model. Figure 1 .
[0020] Figure 2 This is a three-dimensional schematic diagram of a multi-stage vibrating screen for mining according to this utility model. Figure 2 .
[0021] Figure 3 This is a three-dimensional schematic diagram of a multi-stage vibrating screen for mining according to this utility model. Figure 3 .
[0022] Figure 4 This utility model relates to a multi-stage vibrating screen for mining. Figure 1 Enlarged detail of part A.
[0023] Figure 5 This utility model relates to a multi-stage vibrating screen for mining. Figure 2 Enlarged detail of Part B.
[0024] Figure 6 This is a schematic diagram of the collection box of a multi-stage vibrating screen for mining according to this utility model.
[0025] As shown in the figure: 1. Box body; 2. Support leg; 3. Discharge port; 4. Vibration motor; 5. Fixing block; 6. Spring; 7. Screen; 8. L-shaped plate; 9. Fixing plate; 10. Storage box; 11. Connecting rod; 12. Slide groove; 13. Motor; 14. Rotating shaft; 15. Gear; 16. Vertical plate; 17. Rack; 18. Collection box; 19. Damping rotating shaft; 20. Knob; 21. Limiting plate; 22. Baffle; 23. Conveying pipe. Detailed Implementation
[0026] In the description of this utility model, it should be understood that the terms "center," "lateral," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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 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, unless otherwise stated, "a plurality of" means two or more. Additionally, the term "comprising" and any variations thereof are intended to cover non-exclusive inclusion.
[0027] The present invention will now be described in further detail with reference to the accompanying drawings.
[0028] In order to perform multi-stage screening of materials, combined with... Figure 1 and attached Figure 2A multi-stage vibrating screen for mining includes a housing 1, with support legs 2 at each of the four corners of the housing 1, a discharge port 3 on one side of the housing 1, a vibrating motor 4 at the top of the housing 1, and fixing blocks 5 at both ends of both sides of the housing 1. At least one spring 6 is provided between each fixing block 5 and its corresponding support leg 2. The screen also includes several screens 7 arranged at an incline within the housing 1, arranged in a stepped manner downwards. Material falling from the rear top screen 7 flows sequentially onto the front bottom screen 7. The screens 7 have different aperture sizes. With the continuous vibration of the vibrating motor 4 and the assistance of multiple springs 6, multi-stage screening is achieved through multiple inclined screens 7 with different aperture sizes, improving screening accuracy and efficiency.
[0029] To facilitate the separate collection of materials of different particle sizes, combined with... Figure 1 Appendix Figure 3 Appendix Figure 5 and attached Figure 6 The housing 1 contains a material collection structure located below the screen 7. This structure includes a collection box 18, which is placed directly at the bottom of the housing 1. Multiple partitions divide the housing 1 into collection spaces, corresponding sequentially to the screen 7 above. A locking assembly is provided on the housing 1 to secure the collection box 18. The locking assembly includes a baffle 22 located inside the housing 1 near the discharge port 3. Damping shafts 19 are rotatably connected at both ends of the other side of the housing 1. A knob 20 is located at one end of each damping shaft 19, and a limiting plate 21 is provided on the damping shaft 19 to cooperate with the collection box 18. Material screened by the screen 7 falls sequentially into the collection spaces below. Pulling out the collection box 18 allows for direct unloading. Furthermore, the baffle 22, damping shaft 19, and limiting plate 21 secure the collection box 18, preventing accidental displacement.
[0030] To ensure uniform material distribution on the screen surface, combined with... Figure 1 and attached Figure 4The material distribution assembly is located on one side of the housing 1 and can evenly distribute materials onto the screen 7. The material distribution assembly includes a fixed plate 9 and a storage box 10. One side of each support leg 2 is provided with an inverted L-shaped plate 8. The fixed plate 9 is fixedly located on the top of the L-shaped plate 8, and the storage box 10 is located on the top of the fixed plate 9. The bottom of the storage box 10 is provided with connecting rods 11 at the four corners. The bottom of the connecting rods 11 is slidably connected to the fixed plate 9. The storage box 10 is provided with a conveying pipe 23 on one side. The material distribution assembly also includes a motor 13, a gear 15, and a rack 17. The motor 13 is located at the bottom of the fixed plate 9. The fixed plate 9 is provided with a rotating shaft 14 that is rotatably connected. The gear 15 is fixedly located at the top of the rotating shaft 14. The bottom of the rotating shaft 14 is connected to the output end of the motor 13. The bottom of the storage box 10 is provided with a vertical plate 16. The rack 17 is fixedly located at the bottom of the vertical plate 16 and meshes with the gear 15. Both sides of the top of the fixed plate 9 are provided with sliding grooves 12 for use with the connecting rod 11. When the motor 13 is started, the motor 13 drives the rotating shaft 14 to rotate, the gear 15 meshes with it, and the rack 17 meshing with the gear 15 moves back and forth continuously. The connecting rod 11 slides in the sliding groove 12, thereby driving the storage box 10 to move back and forth. The material is continuously sprinkled back and forth onto the screen 7 through the conveying pipe 23, avoiding local accumulation, facilitating subsequent screening, and improving screening efficiency.
[0031] In specific implementation of this utility model:
[0032] First, place the collection box 18 inside the box body 1, so that one side of the collection box 18 abuts against the baffle 22. Then, turn the two knobs 20 on both sides of the box body 1 respectively, causing the damping shaft 19 and the limiting plate 21 to rotate accordingly, so that the limiting plate 21 is in a vertical state, locking and fixing the collection box 18. The material screened by the screen 7 falls into multiple collection spaces of the collection box 18 below, and the fallen material is collected separately.
[0033] The vibration motor 4 is started. With the continuous vibration of the vibration motor 4, the box 1 shakes continuously with the assistance of multiple springs 6. Material is continuously added into the storage box 10. The motor 13 is started, and the motor 13 drives the rotating shaft 14 to rotate. The gear 15 meshes with the gear 15, and the rack 17 meshing with the gear 15 moves back and forth continuously. The connecting rod 11 slides in the slide groove 12, thereby driving the storage box 10 to move back and forth. The material is continuously and evenly spread back and forth onto the screen 7 through the conveying pipe 23, avoiding local accumulation, facilitating subsequent screening, and improving screening efficiency.
[0034] The spilled material flows down along multiple inclined screens 7. The material falling from the rear top screen 7 flows sequentially onto the front bottom screen 7. Due to the different mesh sizes of the screens, multi-stage screening of the material can be achieved, improving screening accuracy and efficiency.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A multi-stage vibrating screen for mining, comprising a housing (1), wherein support legs (2) are provided at the four corners of the housing (1), a discharge port (3) is provided on one side of the housing (1), a vibrating motor (4) is provided at the top of the housing (1), and fixing blocks (5) are provided at both ends of both sides of the housing (1), wherein at least one spring (6) is provided between the fixing block (5) and the corresponding support leg (2), characterized in that, Also includes: Screen (7); Several screens (7) are arranged at an angle inside the box (1) and are set down in a stepped manner. The material falling from the top rear screen (7) flows down to the bottom front screen (7) in sequence. The screens (7) have different aperture sizes. A material collection structure is provided inside the box (1) and below the screens (7). Fabric assembly; the fabric assembly is set on one side of the box (1) and can evenly distribute the material onto the screen (7).
2. The multi-stage vibrating screen for mining according to claim 1, characterized in that: The fabric assembly includes a fixing plate (9) and a storage box (10); one side of each of the supporting legs (2) is provided with an inverted L-shaped plate (8), the fixing plate (9) is fixedly set above the L-shaped plate (8), the storage box (10) is set above the fixing plate (9), the four corners of the bottom of the storage box (10) are provided with connecting rods (11), the bottom of the connecting rods (11) and the fixing plate (9) are slidably connected, and a conveying pipe (23) is provided on one side of the storage box (10). The fabric assembly also includes a motor (13), a gear (15), and a rack (17); the motor (13) is located at the bottom of the fixed plate (9), the fixed plate (9) is provided with a rotating shaft (14) for rotational connection, the gear (15) is fixedly located at the top of the rotating shaft (14), the bottom of the rotating shaft (14) is connected to the output end of the motor (13), the bottom of the storage box (10) is provided with a vertical plate (16), the rack (17) is fixedly located at the bottom of the vertical plate (16) and meshes with the gear (15).
3. A multi-stage vibrating screen for mining according to claim 2, characterized in that: The top two sides of the fixing plate (9) are provided with sliding grooves (12) for use with the connecting rod (11).
4. A multi-stage vibrating screen for mining according to claim 1, characterized in that: The material collection structure includes a collection box (18); the collection box (18) is placed directly at the bottom of the box body (1), and the box body (1) is provided with multiple partitions to divide the box body (1) into multiple collection spaces, which correspond to the screen (7) above in sequence. The box body (1) is provided with a locking component for use with the collection box (18) to fix the collection box (18).
5. A multi-stage vibrating screen for mining according to claim 4, characterized in that: The locking assembly includes a baffle (22) disposed inside the box (1) and near the discharge port (3). Both ends of the other side of the box (1) are provided with a damping shaft (19) rotatably connected. One end of the damping shaft (19) is provided with a knob (20). The damping shaft (19) is provided with a limiting plate (21) for use with the collection box (18).