Multistage vibrating screen tray for nonferrous metal sorting

Abstract

The utility model relates to vibrating screening equipment technical field, concretely relates to a multistage vibrating screen tray for nonferrous metal sorting, the utility model provides a multistate vibrating screen tray for nonferrous metal sorting, including tray frame and the sieve plate module of setting on the tray frame, the sidewall of tray frame is inwardly inclined and sets up, forms the trapezoidal accommodation cavity of big down small, be provided with at least two mounting stations in the tray frame, the sieve plate module is detachably installed on mounting station, the sieve plate module includes module frame and the screen cloth fixed in it, the sidewall of module frame is provided with with tray frame clamping quick installation structure, the screen cloth mesh aperture of sieve plate module in upper layer is greater than the screen cloth mesh aperture of its lower sieve plate module, the bottom of tray frame is buckled with the collection hopper, and the outlet of collection hopper is connected with the negative pressure suction mouth for collecting superfine powder.

Description

Technical Field

[0001] This utility model relates to the field of vibrating screening equipment technology, specifically to a multi-stage vibrating screen tray for non-ferrous metal sorting. Background Technology

[0002] The multi-stage vibrating screen tray used in non-ferrous metal processing is a key screening equipment component in the non-ferrous metal processing production line. Its core function is to separate mixed non-ferrous metal raw materials into products of different specifications (such as coarse, medium, fine and ultrafine powder) according to particle size through gradient screening of multi-stage screens, so as to meet the raw material requirements of subsequent smelting, grinding or beneficiation processes.

[0003] Traditional multi-stage vibrating screen trays typically consist of a fixed frame and a single-layer screen plate, driven by a vibration source to achieve material classification. However, as the non-ferrous metal processing industry continues to demand higher screening efficiency, ease of maintenance, and classification accuracy, traditional trays have gradually revealed the following problems: First, the screen plates are mostly welded or bolted, requiring the disassembly of numerous fasteners during replacement, resulting in long downtime for maintenance; second, the screen plates are simply stacked without optimizing the aperture gradient between the upper and lower layers according to material characteristics, leading to low classification efficiency; third, the screen mesh is prone to clogging due to the accumulation of fine particles, affecting continuous screening operations and making it difficult to meet the demands of high-intensity continuous production. Summary of the Invention

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by providing a multi-stage vibrating screen tray with optimized structure, convenient maintenance, and high screening efficiency. Through modular design, quick disassembly and assembly structure, and anti-clogging design, it solves the problems of time-consuming maintenance, low grading accuracy, and easy clogging of screen holes in traditional trays.

[0005] The technical solution provided by this utility model is a multi-stage vibrating screen tray for non-ferrous metal sorting, including a tray frame and a screen plate module disposed on the tray frame. The side wall of the tray frame is inclined inward to form a trapezoidal cavity that is larger at the top and smaller at the bottom. At least two installation positions are provided inside the tray frame, and the screen plate module is detachably installed at the installation position. The screen plate module includes a module frame and a screen fixed therein. The side wall of the module frame is provided with a quick-installation structure that snaps into the tray frame. The screen mesh aperture of the upper screen plate module is larger than that of the screen mesh aperture of the lower screen plate module. A collection hopper is fastened to the bottom of the tray frame, and the outlet of the collection hopper is connected to a negative pressure suction port for collecting ultrafine powder.

[0006] As a preferred technical solution of this utility model, the vertical distance between two adjacent sieve plate modules is not less than 50mm.

[0007] As a preferred technical solution of this utility model, the quick installation structure is a slot provided on the module frame and a telescopic tenon provided on the tray frame at the slot. The telescopic tenon is provided with a movable groove at a corresponding position on the tray frame, and the telescopic tenon passes through the movable groove and is provided with a pull handle on the outside of the tray frame. A compression spring is provided between the telescopic tenon and the movable groove.

[0008] As a preferred technical solution of this utility model, a screen cleaning device is provided below the screen plate module. The screen cleaning device includes a mounting beam fixed to the bottom of the module frame and several anti-blocking balls connected to the mounting beam by elastic elements. The top of the anti-blocking balls is in elastic contact with the bottom surface of the screen.

[0009] In a preferred embodiment of this invention, the elastic element is a compression spring or a rubber column, and the anti-blocking ball is a rubber ball or an engineering plastic ball.

[0010] As a preferred technical solution of this utility model, the module frame is provided with a hanging frame and a material marking area.

[0011] As a preferred embodiment of this utility model, a cleaning port is provided on the side wall of the pallet frame, and the cleaning port is equipped with an openable and closable sealing cover, and the sealing cover is provided with an observation window.

[0012] As a preferred embodiment of this utility model, the outer side of the pallet frame is provided with a mounting flange for connecting to the vibration equipment, and the mounting flange has evenly distributed mounting holes.

[0013] The advantages of this utility model compared with the prior art are as follows: 1. Optimized structure and convenient maintenance: The trapezoidal cavity of the pallet frame increases the material holding space. Combined with the detachable screen plate module and quick installation structure (slots, telescopic latches), it significantly shortens the screen plate replacement time and reduces downtime maintenance costs.

[0014] 2. High grading accuracy: The screen aperture of the upper and lower screen plate modules decreases in gradient (upper layer aperture > lower layer aperture), and combined with the design of ≥50mm spacing between adjacent screen plates, it realizes efficient separation of materials of different particle sizes and improves grading accuracy.

[0015] 3. Anti-clogging design and strong continuous operation: The screen cleaning device under the screen plate module effectively shakes off fine particles in the screen holes through the elastic collision of the anti-clogging ball and the screen, avoiding screen blockage and ensuring the continuity of the screening process.

[0016] 4. Convenient dust control and observation: The combination of the bottom hopper and the negative pressure suction port reduces the diffusion of ultrafine powder. The design of the sealed cover and observation window facilitates real-time monitoring of the screening status and allows for quick cleaning of residual materials through the cleaning port.

[0017] 5. Stable connection and expanded functionality: The mounting flange and evenly distributed mounting holes enhance the reliability of the connection with vibration equipment; the lifting frame and material marking area improve the pallet's handling convenience and maintenance efficiency, respectively. Attached Figure Description

[0018] Figure 1 This utility model relates to a structure for a multi-stage vibrating screen tray used in non-ferrous metal sorting. Figure 1 .

[0019] Figure 2 This utility model relates to a structure for a multi-stage vibrating screen tray used in non-ferrous metal sorting. Figure 2 .

[0020] Figure 3 This is a cross-sectional three-dimensional structural diagram of a multi-stage vibrating screen tray for non-ferrous metal sorting according to the present invention.

[0021] Figure 4 This is a cross-sectional three-dimensional structural view of a quick-installation structure for a multi-stage vibrating screen tray for non-ferrous metal sorting according to the present invention.

[0022] As shown in the figure: 1. Pallet frame; 2. Screen plate module; 3. Module frame; 4. Screen; 5. Collection hopper; 6. Negative pressure suction port; 7. Slot; 8. Telescopic latch; 9. Movable slot; 10. Pull handle; 11. Compression spring; 12. Screen cleaning device; 13. Mounting beam; 14. Elastic element; 15. Anti-clogging ball; 16. Lifting frame; 17. Material identification area; 18. Cleaning port; 19. Sealing cover; 20. Observation window; 21. Mounting flange; 22. Mounting hole. Detailed Implementation

[0023] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" 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. Example

[0025] As per the instruction manual Figure 1-3 As shown, a multi-stage vibrating screen tray for non-ferrous metal sorting includes a tray frame 1 and a screen plate module 2 disposed on the tray frame 1. The side wall of the tray frame 1 is inclined inward to form a trapezoidal cavity that is larger at the top and smaller at the bottom. A cleaning port 18 is provided on the side wall of the tray frame 1. The cleaning port 18 is equipped with an openable and closable sealing cover 19. An observation window 20 is provided on the sealing cover 19. A mounting flange 21 for connecting to vibrating equipment is provided on the outer side of the tray frame 1. The mounting flange 21 has evenly distributed mounting holes 22.

[0026] In this utility model, at least two installation stations are provided in the tray frame 1. The sieve plate module 2 is detachably installed in the installation station. The vertical distance between two adjacent sieve plate modules 2 is not less than 50mm. The mesh size of the sieve 4 of the upper sieve plate module 2 is larger than the mesh size of the sieve 4 of the lower sieve plate module 2.

[0027] In this utility model, the sieve plate module 2 includes a module frame 3 and a sieve 4 fixed therein. The side wall of the module frame 3 is provided with a quick installation structure that can be snapped into the tray frame 1. The module frame 3 is provided with a hanging bracket 16 and a material marking area 17.

[0028] In this utility model, a screen cleaning device 12 is provided below the screen plate module 2. The screen cleaning device 12 includes a mounting beam 13 fixed to the bottom of the module frame 3 and several anti-blocking balls 15 connected to the mounting beam 13 by elastic elements 14. The top of the anti-blocking ball 15 is in elastic contact with the bottom surface of the screen 4. The elastic element 14 is a rubber column and the anti-blocking ball 15 is a rubber ball. When the vibrating screen tray is connected to the vibrating equipment, the anti-blocking ball 15 continuously contacts the screen 4 under the action of the elastic element 14.

[0029] In this utility model, a material collection hopper 5 is fastened to the bottom of the tray frame 1, and the outlet of the material collection hopper 5 is connected to a negative pressure suction port 6 for collecting ultrafine powder.

[0030] As per the instruction manual Figure 4As shown, the quick-installation structure consists of a slot 7 on the module frame 3 and a telescopic latch 8 on the tray frame 1 located at the slot 7. The telescopic latch 8 has a corresponding movable groove 9 on the tray frame 1, and the telescopic latch 8 passes through the movable groove 9 and has a pull handle 10 on the outside of the tray frame 1. A compression spring 11 is provided between the telescopic latch 8 and the movable groove 9. The quick-installation structure is located at the four corners of the tray frame 1, and the telescopic latch 8 is retracted into the movable groove 9 by pulling the pull handle 10, so that the module frame 3 can be separated from the tray frame 1. At the same time, the telescopic latch 8 protrudes from the upper part of the inner side of the tray frame 1 with a slope, and the telescopic latch 8 can be sent into the movable groove 9 by directly pressing down, which is convenient and quick.

[0031] In use, the tray frame 1 is fixed to the vibration source (such as a vibrating motor) of the vibrating screen through the mounting flange 21 and mounting hole 22; after the vibrating equipment is started, the tray frame 1 and the internal screen plate module 2 vibrate periodically at high frequency with the vibration source.

[0032] The non-ferrous metal material to be sorted is added from the top of the tray frame 1. Due to the inclined guide of the trapezoidal cavity side wall, the material slides down the side wall and passes through the multi-layer sieve module 2 in sequence. The material is screened in layers to separate particles of different diameters, so that the ultrafine powder (<0.5mm) passes through the lower sieve 4 and falls into the bottom collection hopper 5. Finally, it is collected by the dust removal system through the negative pressure suction port 6.

[0033] During the vibration process, the anti-clogging ball 15 below the screen plate module 2 continuously collides with the bottom surface of the screen 4 under the action of the elastic element 14, shaking off the fine particles of material attached to the screen holes and preventing the screen holes from clogging.

[0034] When the screen plate module 2 needs to be replaced, the operator pulls the handle 10 on the outside of the tray frame 1, so that the guide rod of the telescopic latch 8 retracts into the movable groove 9. After the module frame 3 loses its limit, it can be lifted up and taken out, completing the disassembly of the old screen plate. After the new screen plate module 2 is placed in the installation position, the handle 10 is released, the compression spring 11 pushes the guide rod to reset, and the latch 7 and the latch re-engage, completing the installation.

[0035] During the material sorting process, operators can monitor the screening status in real time through the observation window 20; if material accumulates, the sealing cover 19 can be opened to clean it through the cleaning port 18. The lifting frame 16 on the module frame 3 facilitates the overall lifting and movement of the pallet; the material identification area 17 is used to mark the material (such as 304 stainless steel) and specifications of the screen 4 for easy maintenance and management.

[0036] The present invention and its embodiments have been described above. This description is not restrictive, and the specific embodiments shown are only one of the embodiments of the present invention. The actual structure is not limited to this. In short, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the inventive spirit of the present invention, such design should fall within the protection scope of the present invention.

Claims

1. A multi-stage vibrating screen tray for non-ferrous metal sorting, comprising a tray frame (1) and a screen plate module (2) disposed on the tray frame (1), characterized in that: The side walls of the tray frame (1) are inclined inward to form a trapezoidal cavity that is larger at the top and smaller at the bottom; The pallet frame (1) is provided with at least two installation stations, and the sieve plate module (2) is detachably installed on the installation station; The sieve plate module (2) includes a module frame (3) and a sieve (4) fixed therein. The side wall of the module frame (3) is provided with a quick-installation structure that snaps into the tray frame (1). The mesh size of the screen (4) of the upper screen plate module (2) is larger than that of the screen (4) of the lower screen plate module (2); The bottom of the tray frame (1) is fastened with a collection hopper (5), and the outlet of the collection hopper (5) is connected to a negative pressure suction port (6) for collecting ultrafine powder.

2. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The vertical distance between two adjacent sieve plate modules (2) is not less than 50mm.

3. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The quick-installation structure consists of a slot (7) on the module frame (3) and a telescopic tenon (8) on the pallet frame (1) located at the slot (7). The telescopic tenon (8) is provided with a movable groove (9) at a corresponding position on the pallet frame (1), and the telescopic tenon (8) passes through the movable groove (9) and is provided with a handle (10) on the outside of the pallet frame (1). A compression spring (11) is provided between the telescopic tenon (8) and the movable groove (9).

4. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The screen plate module (2) is provided with a screen cleaning device (12) below it. The screen cleaning device (12) includes a mounting beam (13) fixed to the bottom of the module frame (3) and several anti-blocking balls (15) connected to the mounting beam (13) by elastic elements (14). The top of the anti-blocking balls (15) is in elastic contact with the bottom surface of the screen (4).

5. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 4, characterized in that: The elastic element (14) is a compression spring (11) or a rubber column, and the anti-blocking ball (15) is a rubber ball or an engineering plastic ball.

6. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The module frame (3) is provided with a hanging bracket (16) and a material identification area (17).

7. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The pallet frame (1) has a cleaning port (18) on its side wall. The cleaning port (18) is equipped with an openable and closable sealing cover (19). The sealing cover (19) has an observation window (20).

8. The multi-stage vibrating screen tray for non-ferrous metal sorting according to claim 1, characterized in that: The outer side of the tray frame (1) is provided with a mounting flange (21) for connecting to the vibration equipment, and the mounting flange (21) has evenly distributed mounting holes (22).

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