Mining screening device

Abstract

The utility model relates to the technical field of ore screening, in particular to a mining screening device which comprises an installation frame, rolling bearing devices are arranged on the two sides of the installation frame respectively, a multi-stage screening device is arranged on the rolling bearing devices, and a material collecting device corresponding to the multi-stage screening device is arranged at the bottom of the multi-stage screening device. A pushing device is arranged in the multi-stage screening device, the multi-stage screening device comprises a feeding end and a discharging end, an annular plate is arranged at the feeding end of the multi-stage screening device, and a temporary storage box is arranged at the position, located at the bottom of the discharging end of the multi-stage screening device, of the mounting frame. When the ore is screened, caked ore is conveniently driven to the high position in the multi-stage screening device and falls to the bottom in the multi-stage screening device to be dispersed under the dead weight of the caked ore, the recovery efficiency of the ore is improved, and the service life of the screening device is ensured.

Description

Technical Field

[0001] This utility model relates to the field of ore screening technology, specifically a mining screening device. Background Technology

[0002] Ore screening is an indispensable step in mineral processing. Its main purpose is to separate ores of different particle sizes so that subsequent processes such as crushing, grinding, and beneficiation can be carried out more efficiently. Proper screening can improve mineral processing efficiency, reduce energy consumption, and increase ore recovery rates.

[0003] Ore is prone to agglomeration during mining and transportation, especially in humid environments. Traditional screening equipment often fails to effectively disperse agglomerated ore, leading to reduced screening efficiency. For example, while vibrating screens can disperse ore agglomerates through high-frequency vibration, this vibration method can cause rapid wear and tear on equipment parts, increasing maintenance costs and failure rates. Utility Model Content

[0004] To address the aforementioned issues of how to effectively screen agglomerated ore and ensure the service life of the screening device, this utility model provides a mining screening device.

[0005] The technical solution of this utility model is as follows:

[0006] A mining screening device includes a mounting frame with rolling support devices on both sides. A multi-stage screening device is mounted on the rolling support devices. A corresponding material collection device is located at the bottom of each multi-stage screening device. A pushing device is located inside each multi-stage screening device. The multi-stage screening device includes a feed end and a discharge end. An annular plate is provided at the feed end of the multi-stage screening device. A temporary storage box is located at the bottom of the discharge end of the multi-stage screening device on the mounting frame. This device facilitates the movement of agglomerated ore to a higher position within the multi-stage screening device during ore screening, allowing the agglomerated ore to fall to the bottom and disperse under its own weight, thus improving ore recovery efficiency and ensuring the service life of the screening device.

[0007] Furthermore, the rolling support device includes support rollers, which are mounted on both sides of the top of the mounting frame via mounting blocks. The multi-stage screening device is located in the middle of the support rollers on both sides of the mounting frame and is in contact with the support rollers on both sides respectively. One of the mounting frames is equipped with a motor that drives the corresponding support roller. This facilitates driving the multi-stage screening device to rotate and screen the ore.

[0008] Furthermore, the multi-stage screening device includes a first drum screen and a second drum screen, which are connected by a connecting assembly. Both the first and second drum screens have screen holes on their surfaces, with the diameter of the screen holes on the first drum screen being smaller than the diameter of the screen holes on the second drum screen. This facilitates the screening of ores of different particle sizes.

[0009] Furthermore, the collecting device includes a first collecting hopper and a second collecting hopper, both of which are funnel-shaped structures. Each of the first and second collecting hoppers has a valve at its bottom. The first and second collecting hoppers are respectively positioned at the bottom of the first and second rotary screens and connected to the mounting frame. This facilitates the collection of ores of different particle sizes.

[0010] Furthermore, the driving device includes a spiral plate, and both the first and second drum screens are equipped with spiral plates. Multiple baffles are circumferentially arranged inside the spiral plates. While driving the ore through the first drum screen and into the second drum screen, it also carries any agglomerated ore to a higher position where it falls and disperses.

[0011] Furthermore, the width of the baffle is smaller than the width of the spiral plate, and the baffle is positioned on the side away from the axis of the spiral plate. This ensures that the spiral plate effectively drives the ore for screening.

[0012] Furthermore, the connecting assembly includes a fixed frame and an insert block. The fixed frame is located at the end of the second drum screen near the first drum screen, and the insert block is located at the end of the first drum screen near the second drum screen. The insert block is inserted into the fixed frame and fixed to it by a screw. The insert block has a threaded hole on its side, and the fixed frame has a through hole on its side that matches the threaded hole. The screw passes through the through hole and is installed in the threaded hole. This provides a stable connection between the first and second drum screens, ensuring the stability of the screening operation.

[0013] The beneficial effects of this utility model are as follows:

[0014] (1): The present invention has a simple structure. The spiral plate facilitates the movement of the ore inside the first and second drum screens, which is convenient for screening the ore. The multiple baffles can push the ore from the bottom of the first and second drum screens to the higher part of the first and second drum screens, which facilitates the breaking up of the lumpy ore under its own weight, thus improving the screening efficiency of the ore.

[0015] (2): This device ensures that the insert block is inserted into the corresponding fixed frame by connecting the ends of the first and second drum screens. At the same time, the through hole on the side of the fixed frame is aligned with the threaded hole on the side of the insert block, which facilitates the fixed connection between the insert block and the fixed frame by the threaded rod, ensuring the stability of the connection between the first and second drum screens and ensuring the screening of ores of different particle sizes. Attached Figure Description

[0016] The advantages and solutions of this application will become clear to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ;

[0019] Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ;

[0020] Figure 3 This is a cross-sectional view of the present invention;

[0021] Figure 4 for Figure 1 A magnified view of the local structure.

[0022] The components represented by the various reference numerals in the diagram are:

[0023] 1. Mounting frame; 2. Rotary drum screen one; 3. Rotary drum screen two; 4. Collecting hopper one; 5. Collecting hopper two; 6. Temporary storage box; 7. Fixing frame; 8. Insert block; 9. Screw; 10. Baffle; 11. Spiral plate; 12. Support roller; 13. Motor; 14. Mounting block; 15. Annular plate. Detailed Implementation

[0024] Exemplary embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. It should be noted that these embodiments are provided to enable a more thorough understanding of this disclosure and to fully convey the scope of this disclosure to those skilled in the art. This disclosure can be implemented in various forms and should not be limited to the embodiments set forth herein.

[0025] Example

[0026] This embodiment provides a screening device for mining applications; see [link / reference]. Figures 1-4The system includes a mounting frame 1, with rolling support devices on both sides. A multi-stage screening device is mounted on the rolling support devices, and a corresponding material collection device is located at the bottom of the multi-stage screening device. A pushing device is located inside the multi-stage screening device. The multi-stage screening device includes a feed end and a discharge end. An annular plate 15 is located at the feed end of the multi-stage screening device, and a temporary storage box 6 is located at the bottom of the discharge end of the mounting frame 1. This system facilitates the movement of agglomerated ore to a higher position within the multi-stage screening device during ore screening, allowing the agglomerated ore to fall to the bottom and disperse under its own weight, thus improving ore recovery efficiency and ensuring the service life of the screening device.

[0027] The ore is fed into the feed end of the multi-stage screening device. The feed end of the multi-stage screening device is equipped with an annular plate 15, which facilitates ore input while preventing ore spillage. Driven by a rolling support device, the multi-stage screening device rotates. Because the multi-stage screening device has an internal pushing device, its rotation causes the ore to move from the feed end to the discharge end, facilitating the screening of ores of different particle sizes. Furthermore, during this movement, the pushing device also moves the ore from the feed end to the discharge end of the multi-stage screening device. The bottom of the device moves upwards within the multi-stage screening unit, facilitating the movement of agglomerated ore to the upper part of the unit. Under its own weight, the agglomerated ore falls to the bottom of the multi-stage screening unit and collides with the ore already there, effectively breaking up the agglomerated ore. The dispersed ore can then pass through the multi-stage screening unit and enter the collection device below, improving screening efficiency. Furthermore, it eliminates the need for high-frequency vibration of a vibrating screen to disperse the agglomerated ore, ensuring the unit's service life and reducing maintenance costs and failure rate.

[0028] The rolling support device includes support rollers 12, which are mounted on both sides of the top of the mounting frame 1 via mounting blocks 14. The multi-stage screening device is located in the middle of the support rollers 12 on both sides of the mounting frame 1 and is in contact with the support rollers 12 on both sides respectively. One of the mounting frames 1 is equipped with a motor 13 that drives the corresponding support roller 12. This facilitates driving the multi-stage screening device to rotate and screen the ore.

[0029] When the motor 13 starts, it can drive the corresponding support roller 12 to rotate. Since the multi-stage screening device is located in the middle of the support rollers 12 on both sides of the top of the mounting frame 1, it is convenient to drive the multi-stage screening device to rotate and screen the ore.

[0030] The multi-stage screening device includes a first drum screen (2) and a second drum screen (3), which are connected by a connecting assembly. Both the first drum screen (2) and the second drum screen (3) have screen holes on their surfaces. The diameter of the screen holes on the first drum screen (2) is smaller than the diameter of the screen holes on the second drum screen (3). This facilitates the screening of ores of different particle sizes.

[0031] The drum screen 1 (2) and drum screen 2 (3) are connected. By feeding the ore into the end of drum screen 1 (2) away from drum screen 2 (3), the ore is easily screened under the drive of the support roller 12. Since the diameter of the screen holes on drum screen 1 (2) is smaller than the diameter of the first row of screen holes on drum screen 2 (3), the finer ore particles can be screened out first, and then the coarser ore particles enter the drum screen 2 (3) for screening again.

[0032] The material collection device includes a first collection hopper 4 and a second collection hopper 5, both of which are funnel-shaped. Each hopper has a valve at its bottom. The first and second collection hoppers are respectively positioned at the bottom of the first and second drum screens 2 and 3 and connected to the mounting frame 1. This facilitates the collection of ores of different particle sizes. It also facilitates the collection of ores screened out by the first and second drum screens 2 and 3, and the valves allow for easy control of the discharge of the screened ore.

[0033] The driving device includes a spiral plate 11. Both the first drum screen 2 and the second drum screen 3 are equipped with spiral plates 11. Multiple baffles 10 are provided through the spiral plates 11, and the multiple baffles 10 are arranged circumferentially inside the first drum screen 2 and the second drum screen 3. While driving the ore through the first drum screen 2 into the second drum screen 3, it also drives the agglomerated ore to a high place and then drops it to disperse it.

[0034] The spiral plate 11 facilitates the movement of ore inside the first drum screen 2 and the second drum screen 3, which is convenient for ore screening. The multiple baffles 10 can push the ore from the bottom of the first drum screen 2 and the second drum screen 3 to the higher part of the first drum screen 2 and the second drum screen 3, which can break up the lumpy ore under its own weight, thereby improving the ore screening efficiency.

[0035] The width of the baffle 10 is smaller than the width of the spiral plate 11, and the baffle 10 is positioned on the side away from the axis of the spiral plate 11. This ensures that the spiral plate 11 effectively drives the ore for screening.

[0036] The spiral plate 11 effectively drives the ore to move within the first drum screen 2 and the second drum screen 3. The spiral plate 11 is similar to a shaftless auger, and the baffle 10 can move the ore from a low position to a high position to fall, which facilitates the improvement of ore screening efficiency.

[0037] The connecting assembly includes a fixed frame 7 and an insert block 8. The fixed frame 7 is located at one end of the second drum screen 3 near the first drum screen 2, and the insert block 8 is located at the end of the first drum screen 2 near the second drum screen 3. The insert block 8 is inserted into the fixed frame 7 and fixed to the fixed frame 7 by a screw 9. The insert block 8 has a threaded hole on its side, and the fixed frame 7 has a through hole on its side that matches the threaded hole. The screw 9 passes through the through hole and is installed in the threaded hole. This securely connects the first drum screen 2 and the second drum screen 3, ensuring the stability of the screening operation.

[0038] By connecting the ends of drum screen 1 2 and drum screen 2 3, the insert block 8 is inserted into the corresponding fixed frame 7. At the same time, the through hole on the side of the fixed frame 7 is aligned with the threaded hole on the side of the insert block 8, so that the insert block 8 and the fixed frame 7 can be fixedly connected by the threaded rod, ensuring the stability of the connection between drum screen 1 2 and drum screen 2 3, and ensuring the screening of ores of different particle sizes.

[0039] To ensure that ores of different particle sizes can move from the first drum screen 2 to the second drum screen 3, the mounting frame 1 is set in an inclined position, ensuring that the first drum screen 2 and the second drum screen 3 are also set in an inclined position. This facilitates the movement of ores from the inside of the first drum screen 2 to the inside of the second drum screen 3. The spiral plate 11 drives the ores, ensuring the flowability of the ores within the multi-stage screening device. As the ores follow the baffle 10 to a higher position within the multi-stage screening device and fall from that position onto the baffle 10 at the bottom of the multi-stage screening device, the ores that are stuck together are broken up, ensuring screening efficiency. To prevent the baffle 10 from being damaged due to prolonged impact from the ores, the baffle 10 is made of angle iron. This not only increases the strength of the baffle 10 but also allows the cone at the top to break up the ores that are stuck together.

[0040] In this embodiment, the working principle of the mining screening device is as follows:

[0041] First, ore is fed into the end of drum screen 2. Then, motor 13 is started, which drives support roller 12 to rotate. The rotation of support roller 12 drives drum screen 2 and drum screen 3 to rotate synchronously. Next, as drum screen 2 and drum screen 3 rotate, they drive the spiral plates 11 and baffles 10 inside to rotate along the axis of drum screen 2 and drum screen 3, respectively, driving the ore to be filtered and screened in drum screen 2 and drum screen 3. This effectively disperses agglomerated ore. The filtered ore enters collection hopper 4 and collection hopper 5, respectively. Impurities that cannot be filtered and larger ore passes through drum screen 3 and enters temporary storage box 6. Finally, the filtered ore is collected by opening the valve, and the impurities and larger ore in temporary storage box 6 are sorted and recycled.

[0042] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations, additions, subtractions, or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A mining screening device, comprising a mounting frame (1), characterized in that, The mounting frame (1) is provided with rolling support devices on both sides. The rolling support devices are provided with multi-stage screening devices. The bottom of the multi-stage screening devices is provided with a material collection device corresponding to the multi-stage screening devices. The multi-stage screening devices are provided with a pushing device inside. The multi-stage screening devices include a feeding end and a discharging end. The feeding end of the multi-stage screening devices is provided with an annular plate (15). The mounting frame (1) is provided with a temporary storage box (6) at the bottom of the discharging end of the multi-stage screening devices.

2. The mining screening device according to claim 1, characterized in that, The rolling support device includes a support roller (12), which is mounted on both sides of the top of the mounting frame (1) via a mounting block (14). The multi-stage screening device is located in the middle of the support rollers (12) on both sides of the mounting frame (1) and is in contact with the support rollers (12) on both sides respectively. One of the mounting frames (1) is equipped with a motor (13) that drives the corresponding support roller (12).

3. A mining screening device according to claim 2, characterized in that, The multi-stage screening device includes a drum screen one (2) and a drum screen two (3). The drum screen one (2) and the drum screen two (3) are connected by a connecting component. The surfaces of the drum screen one (2) and the drum screen two (3) are provided with screen holes. The diameter of the screen holes on the drum screen one (2) is smaller than the diameter of the screen holes on the drum screen two.

4. A mining screening device according to claim 3, characterized in that, The material collection device includes a first collection hopper (4) and a second collection hopper (5). Both the first collection hopper (4) and the second collection hopper (5) are funnel-shaped structures. Both the first collection hopper (4) and the second collection hopper (5) are equipped with valves at the bottom. The first collection hopper (4) and the second collection hopper (5) are respectively arranged at the bottom of the first drum screen (2) and the second drum screen (3) and connected to the mounting frame (1).

5. A mining screening device according to claim 4, characterized in that, The driving device includes a spiral plate (11). Both the first drum screen (2) and the second drum screen (3) are equipped with spiral plates (11). Multiple baffles (10) are provided through the spiral plate (11). The multiple baffles (10) are arranged circumferentially inside the first drum screen (2) and the second drum screen (3).

6. A mining screening device according to claim 5, characterized in that, The width of the baffle (10) is smaller than the width of the spiral plate (11), and the baffle (10) is disposed on the side away from the axis of the spiral plate (11).

7. A mining screening device according to claim 6, characterized in that, The connecting assembly includes a fixed frame (7) and an insert (8). The fixed frame (7) is located at one end of the second drum screen (3) near the first drum screen (2). The insert (8) is located at one end of the first drum screen (2) near the second drum screen (3). The insert (8) is inserted into the fixed frame (7). The insert (8) and the fixed frame (7) are fixed together by a screw (9). The side of the insert (8) is provided with a threaded hole. The side of the fixed frame (7) is provided with a through hole that matches the threaded hole. The screw (9) passes through the through hole and is installed in the threaded hole.

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