Beneficiation device with multi-layer vibrating screening mechanism

Abstract

The utility model relates to multistage ore dressing technical field discloses a kind of ore dressing device with multilayer vibrating screen mechanism, comprising: screen frame, the symmetrical installation slot of being opened to the opposite two side inner walls in screen frame;Several screen meshes, several screen meshes are installed in the installation slot by first buffer, and several screen meshes are sequentially distributed in the screen frame from top to bottom;Driving element, the driving element acts on second buffer, for the screen mesh provides power, and the driving element is fixed on the screen frame by fixed plate.In the device, several screen meshes are sequentially installed from top to bottom in screen frame, can carry out multiple screening to ore, distinguish different ore grain, improve screening efficiency, first buffer and second buffer are installed on screen mesh, can effectively reduce noise.

Description

Technical Field

[0001] This utility model relates to the field of multi-stage mineral processing technology, and more specifically, to a mineral processing device with a multi-layer vibration screening mechanism. Background Technology

[0002] A mineral processing shaking table typically consists of three main parts: the table surface, the frame, and the transmission mechanism. In addition, it may include a water trough, a feed trough, and a base. The entire table surface is supported or suspended by the frame, which is equipped with a slope adjustment device. The shaking table allows mineral particles to move in different directions according to their density and particle size, spreading out in a fan shape diagonally from the feed trough and discharging sequentially along the edges of the table surface. The discharge line is long, enabling the precise production of various products of different qualities, such as concentrate, secondary concentrate, middlings concentrate, and tailings. However, most existing mineral processing shaking tables have a single-layer screening bed structure, resulting in low screening efficiency and high noise levels.

[0003] Therefore, there is a need for a mineral processing device with a multi-layer vibration screening mechanism that can improve screening efficiency and effectively reduce noise. Utility Model Content

[0004] The purpose of this invention is to provide a mineral processing device with a multi-layer vibrating screening mechanism to solve the problems existing in the prior art. In this device, several screens are installed sequentially from top to bottom in the screen frame, which can screen the ore multiple times, distinguish different mineral particles, and improve screening efficiency. A first buffer and a second buffer are installed on the screens to effectively reduce noise.

[0005] To achieve the above objectives, the present invention provides the following solution: The present invention provides a mineral processing device with a multi-layer vibrating screening mechanism, comprising: a screen frame, wherein several mounting grooves are symmetrically opened on opposite inner walls of the screen frame; several screens, wherein the screens are installed in the mounting grooves by means of a first buffer member, and the screens are distributed sequentially from top to bottom within the screen frame; and a driving member, which acts on a second buffer member to provide power to the screens, and the driving member is fixed to the screen frame by means of a fixing plate.

[0006] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided. The first buffer component includes a first telescopic rod and a buffer spring. One end of the first telescopic rod is fixedly connected in the mounting groove, and the other end is fixedly connected below the screen. The buffer spring is sleeved on the outside of the first telescopic rod.

[0007] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided, wherein screens with different aperture sizes are arranged between several screens, and the aperture size of the screens decreases sequentially from top to bottom.

[0008] According to the present invention, a mineral processing device with a multi-layer vibrating screening mechanism is provided, wherein a guide plate is installed on one side of the screen.

[0009] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided, wherein a plurality of partitions are provided in the installation groove, one end of the first telescopic rod is fixedly connected to the partition, and the other end is connected to the protrusion, the protrusion being fixedly connected to the screen.

[0010] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided. The second buffer includes an arc-shaped elastic plate and a second telescopic rod. The arc-shaped elastic plate is mounted on a connecting plate. The connecting plate is fixedly connected to the side of the screen away from the guide plate. The second telescopic rod is connected between the connecting plate and the arc-shaped elastic plate. A striking column is installed on the side of the arc-shaped elastic plate away from the connecting plate. The driving member is in intermittent contact with the striking column.

[0011] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided. The driving component includes a cam and a motor. The rotating shaft of the cam is installed at the output end of the motor. The motor is fixedly installed on the fixed plate, and the fixed plate is fixedly connected to the screen frame.

[0012] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided, wherein a rubber block is provided between the arc-shaped elastic plate and the cam.

[0013] According to the present invention, a mineral processing device with a multi-layer vibration screening mechanism is provided, wherein a feeding trough is provided above the screen frame.

[0014] The present invention discloses the following technical effects:

[0015] This device has several screens installed sequentially from top to bottom inside the screen, which can classify and screen ores, distinguishing ores of different particle sizes and improving screening efficiency. A first buffer is installed between the screen and the screen frame, which can effectively reduce the rigid contact between the screen and the screen frame when the screen vibrates, thereby reducing noise. A second buffer is installed between the screen and the drive component, which can prevent the power component from directly rigidly contacting the screen. The second buffer can effectively reduce the generation of noise, thereby reducing the overall noise of the device. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the 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.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the present invention from another angle;

[0019] Figure 3 This is a schematic diagram of the screen installation in this utility model;

[0020] Figure 4 This is a schematic diagram of the structure inside the mounting groove in this utility model;

[0021] Figure 5 This is a schematic diagram of the structure of the second buffer component in this utility model;

[0022] The components include: 1. Screen frame; 2. Mounting groove; 3. Screen mesh; 4. Guide plate; 5. First telescopic rod; 6. Buffer spring; 7. Connecting plate; 8. Arc-shaped elastic plate; 9. Second telescopic rod; 10. Rubber block; 11. Feeding trough; 12. Fixing plate; 13. Cam; 14. Motor; 15. Protrusion; 16. Striking column; 17. Partition plate. 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] The following embodiments involve telescopic rods, which typically consist of a rod body, a spring, and a hydraulic damping structure. The telescopic rod may employ a hydraulic buffering principle, where a piston compresses oil to generate damping force. As the oil passes through the throttling orifice, viscous resistance converts kinetic energy into heat energy, further reducing vibration (similar to the working principle of a hydraulic damper).

[0025] The prior art relates to a mineral processing shaking table with a multi-layer vibrating mineral processing mechanism, including a mineral processing section and a slope adjustment section. The mineral processing section includes a hanger, a headstock, a frame, a bracket, a bed surface, a feeding hopper, a water tank, and a limiting component. A base is provided on the surface of the hanger. The headstock is connected to the hanger by a first rope and is connected to the frame. A baffle is provided on the surface of the bed surface, which rests on the surface of the bracket. The limiting component passes through the bracket and engages with the bed surface. A first spring is provided between the limiting component and the bracket. Multiple brackets are connected to one side of the frame, and the multiple brackets are connected by reinforcing ribs. A frame is provided on the surface of the reinforcing ribs. The feeding hopper is connected to a conveying pipe, and the water tank is connected to a water pipe. A first collection hopper is provided at the bottom of the bed surface. The second collection bucket allows the ore beneficiation unit to efficiently separate fine-grained ore using multiple bed surfaces. It also allows for easy removal and replacement of the bed surfaces, facilitating rapid production recovery. The slope adjustment unit includes a take-up roller, a second rope, a connecting rod, and a gear. The connecting rod passes through the base and is rotatably connected to it. The connecting rod is connected to the take-up roller and the gear. The two ends of the second rope are connected to the frame and the take-up roller, respectively. A portion of the second rope is wound onto the surface of the take-up roller. A locking block that engages with the gear is slidably connected to the base surface. A rotating shaft is rotatably connected to the gear surface, allowing for easy rotation of the gear by hand. A second spring is provided between the locking block and the base, enabling the locking block to engage with the gear.

[0026] The headstock surface is equipped with a motor, the output shaft of which is connected to a small pulley. The headstock surface is also equipped with a large pulley, and the small and large pulleys are connected by a belt. The slope adjustment section allows for easy adjustment of the tilt angle of the bed surface as needed, facilitating the sorting of different ores. The headstock includes a reciprocating rod, which is connected to the bed frame via a connector. The headstock is existing technology.

[0027] The limiting component is slidably connected to the bracket, and the reinforcing ribs are located on both sides of the bracket.

[0028] The bed surface is provided with a feed trough, a flushing trough, and a wire trough. The surface of the conveying pipe is provided with a discharge port corresponding to the feed trough, and the surface of the water pipe is provided with a water outlet corresponding to the flushing trough.

[0029] The bottom of both the first and second collecting hoppers is equipped with collecting pipes. The first collecting hopper is connected to the second collecting hopper, and the second collecting hopper is connected to the reinforcing rib.

[0030] The base surface is provided with a sliding groove that slides and connects with the snap-fit ​​block, and the baffle surface is provided with a limiting groove that snaps and engages with the limiting component.

[0031] Both the top of the hopper and the water tank have openings, and both the hopper and the water tank are connected to the hanger.

[0032] Working principle: As shown in the figure, first hold the rotating shaft, then slide the locking block up the slide groove. The second spring is compressed, causing it to disengage from the gear. With the help of the rotating shaft, rotate the gear counterclockwise, releasing a portion of the wound-up second rope. Under the action of gravity, the bed surface tilts to the right. Conversely, rotating the gear clockwise will cause the bed surface to tilt to the left, achieving slope adjustment to meet the sorting requirements. Release the locking block, and the second spring will push the locking block to engage with the gear, preventing the gear from rotating on its own. As shown in the figure, pour the ore into the feeding hopper and add water to the water tank. The ore enters the feeding trough through the conveying pipe and moves on the bed surface. Water enters the flushing trough through the water pipe and washes the surface. On the bed surface, the headstock drives the bed frame to move back and forth via a reciprocating rod, causing the bracket to move the bed surface back and forth. The ore moves in different directions according to its density and particle size, and spreads out in a fan shape along the diagonal starting from the feed trough, and is discharged sequentially along the edge of the bed surface, entering the first collection hopper or the second collection hopper for sorting. When the bed surface needs to be replaced, as shown in the figure, the limiting piece is lifted to disengage it from the limiting groove. The first spring is compressed, which releases the fixation on the bed surface. The old bed surface is removed and the new bed surface is placed on the bracket. The limiting piece is released, and the first spring pushes the limiting piece down to engage with the limiting groove, fixing the new bed surface and completing the replacement.

[0033] Although the above-mentioned technologies involve multiple screening layers, the buffering and noise reduction effects are not outstanding.

[0034] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0035] like Figures 1-5 As shown, this utility model provides a mineral processing device with a multi-layer vibration screening mechanism, including: a screen frame 1, with several mounting grooves 2 symmetrically opened on the inner walls of opposite sides of the screen frame 1; several screens 3, which are installed in the mounting grooves 2 through a first buffer member, and the screens 3 are distributed in the screen frame 1 from top to bottom; a driving member, which acts on the second buffer member to provide power to the screens, and the driving member is fixedly installed on the screen frame through a fixing plate.

[0036] The screen frame 1 is welded from high-strength steel plate, with several symmetrical mounting grooves 2 on both inner walls. A first buffer element is installed within each groove to secure the screen mesh 3. The mounting grooves 2 are 10-15mm deep and slightly wider than the edge of the screen mesh 3, ensuring that the screen mesh 3 can move slightly vertically within the groove. Three to five layers of screen mesh 3 are installed sequentially from top to bottom within the screen frame 1, with the aperture of each layer decreasing progressively to achieve graded screening of the ore from coarse to fine. The screen mesh 3 is made of wear-resistant alloy steel perforated plate, with reinforced edges welded to prevent deformation.

[0037] The top of the screen frame 1 is equipped with a feeding trough 11, which facilitates the feeding of ore into the screen 3 for grading and beneficiation.

[0038] A guide plate 4 is installed on one side of the screen 3. The guide plate 4 has a curved arc and is set at an angle downward. The guide plate 4 facilitates material discharge. The length of the screen 3 decreases from top to bottom, which facilitates separate collection and is beneficial for collecting ores of different particle sizes.

[0039] Several partitions 17 are fixedly connected in the mounting groove 2, and a receiving cavity is formed between adjacent partitions 17. Both sides of the screen 3 are fixedly connected with protrusions 15, which are located in the receiving cavity. A first buffer is installed between the partitions 17 and the protrusions 15.

[0040] The first buffer component includes a first telescopic rod 5 and a buffer spring 6. In this embodiment, the first telescopic rod 5 is hydraulically or pneumatically operated. The buffer spring 6 is sleeved on the outside of the first telescopic rod 5. One end of the first telescopic rod 5 is fixedly connected to the partition plate 17, and the other end is fixedly connected to the protrusion 15. The spring preload is adjustable and is used to absorb the vibration energy of the screen 3 and reduce the resonance of the screen frame 1. When the screen 3 is displaced due to vibration, the first telescopic rod 5 moves with the screen 3, and the outer buffer spring 6 is compressed or stretched. Through elastic deformation, it absorbs vibration energy and reduces rigid impact. The first telescopic rod 5 assists the buffer spring 6 to further reduce rigid impact and reduce noise generation.

[0041] The second buffer includes an arc-shaped elastic plate 8 and a second telescopic rod 9. In this embodiment, the second telescopic rod 9 is hydraulic or pneumatic. The arc-shaped elastic plate 8 is installed on the connecting plate 7, which is fixed on the side of the screen 3 away from the guide plate 4. One end of the second telescopic rod 9 is fixedly connected to the arc-shaped elastic plate 8, and the other end is fixedly connected to the connecting plate 7. A striking column 16 is installed on the side of the arc-shaped elastic plate 8 away from the connecting plate 7. The driving component is in intermittent contact with the striking column 16, causing the screen 3 to vibrate reciprocally.

[0042] The driving components include a cam 13 and a motor 14. The shaft of the cam 13 is mounted on the output end of the motor 14, and the motor 14 is fixed on a fixed plate 12, which is fixedly connected to the screen frame 1. During rotation, the cam 13 intermittently contacts the striking column 16, causing the striking column 16 to deform the arc-shaped elastic plate 8. A rubber block 10 is also provided between the arc-shaped elastic plate 8 and the cam 13. The striking column 16 passes through the rubber block 10, forming a flexible power transmission path and reducing rigid impact noise.

[0043] The motor 14 is started, driving the cam 13 to rotate. The cam 13 intermittently contacts and strikes the column 16. When it contacts and strikes the column 16, power is transmitted, and the arc-shaped elastic plate 8 bends and deforms, converting some of the impact energy into elastic potential energy. At the same time, the vibration amplitude is reduced through its own material damping (such as metal fatigue energy dissipation). The second telescopic rod 9 extends and retracts between the connecting plate 7 and the arc-shaped plate, and the stroke length is adjusted to adapt to different vibration amplitudes. For example, when the screen 3 vibrates violently, the telescopic rod retracts to increase the buffer stroke and prolong the energy absorption time.

[0044] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model 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. Therefore, they should not be construed as limitations on this utility model.

[0045] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A mineral processing plant having a multi-deck vibratory screening mechanism, characterised in that, The utility model relates to a screening frame, which comprises: a screening frame (1) having a plurality of installation slots (2) symmetrically formed in the inner walls of opposite sides of the screening frame (1); a plurality of screen meshes (3) installed in the installation slots (2) through first buffering members, the screen meshes (3) being sequentially arranged from top to bottom in the screening frame (1); a driving member acting on a second buffering member and used for providing power for the screen meshes (3), the driving member being installed on the screening frame (1) through a fixing plate (12).

2. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 1, characterized in that: The first buffering member comprises a first telescopic rod (5) and a buffering spring (6), one end of the first telescopic rod (5) being fixedly connected in the installation slot (2) and the other end being fixedly connected below the screen mesh (3), the buffering spring (6) being sleeved on the outer side of the first telescopic rod (5).

3. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 2, characterized in that: The screen meshes (3) are provided with screen holes of different diameters, and the diameters of the screen holes decrease sequentially from top to bottom.

4. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 3, characterized in that: The screen mesh (3) is provided with a guide plate (4) on one side.

5. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 4, characterized in that: The installation slot (2) is provided with a plurality of partition plates (17), one end of the first telescopic rod (5) being fixedly connected on the partition plate (17) and the other end being connected on a protruding block (15), the protruding block (15) being fixedly connected on the screen mesh (3).

6. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 5, characterized in that: The second buffering member comprises an arc-shaped elastic plate (8) and a second telescopic rod (9), the arc-shaped elastic plate (8) being installed on a connecting plate (7), the connecting plate (7) being fixedly connected on the side of the screen mesh (3) away from the guide plate (4), the second telescopic rod (9) being connected between the connecting plate (7) and the arc-shaped elastic plate (8), the side of the arc-shaped elastic plate (8) away from the connecting plate (7) being provided with a knocking column (16), and the driving member intermittently contacts the knocking column (16).

7. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 6, characterized in that: The driving member comprises a cam (13) and a motor (14), the rotating shaft of the cam (13) being installed on the output end of the motor (14), the motor (14) being fixedly installed on the fixing plate (12), and the fixing plate (12) being fixedly connected on the screening frame (1).

8. The mineral processing device with a multi-layer vibratory screening mechanism according to claim 7, characterized in that: A rubber block (10) is arranged between the arc-shaped elastic plate (8) and the cam (13).

9. The mineral separation device having a multi-layer vibratory screening mechanism according to claim 1, characterized in that: A feeding slot (11) is formed above the screening frame (1).

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