Screening device for mining

Abstract

The utility model relates to the technical field of screening equipment, in particular to a screening device for mining, which comprises a base, a protective frame is arranged at the top of the base, a servo motor is mounted on the outer side surface of the protective frame, and symmetrically distributed rubber rollers are rotatably mounted at the lower part in the protective frame. A servo motor drives a rubber roller to rotate, the design of a four-corner rotating block and a wedge-shaped fixing plate is combined, so that a screening plate can shake up and down, ore materials can be effectively and evenly spread on the surface of the screening plate through the design, material accumulation is avoided, and the screening efficiency and quality are improved; according to the device, the function of automatic separated discharging is achieved, large ore materials are discharged from the right side due to the inclined arrangement mode of the screening plate and the vibration effect, small ore materials penetrate through the screening plate to fall on the flat belt and are conveyed to the left side through the flat belt, the requirement for manual intervention is greatly reduced, and the working efficiency is improved. And the automation level of the whole screening process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a screening device for mine exploitation. Background Technique

[0002] Mine exploitation refers to the process of extracting useful minerals or rocks from the earth's crust, which is an important foundation for many industries. During the mine exploitation process, the screening and classification of ores are one of the crucial steps. Through the screening device, ores with different particle sizes can be separated to meet the requirements of subsequent processing, ore dressing, and transportation.

[0003] The patent with the patent authorization announcement number CN222058050U discloses a multi-layer mineral screening device. A first screen is arranged inside its main body, and a second screen is connected below the first screen. To prevent the screen holes from being blocked, a first arch-breaking block is arranged at the bottom of the filter holes of the first screen, and a second arch-breaking block is arranged at the top of the filter holes of the second screen. The two are arranged in a relatively staggered manner. In addition, lifting components are installed on both sides of the second screen, enabling it to move up and down along these components. By the interaction between the first arch-breaking block and the second arch-breaking block, the problem of screen hole blockage is avoided. This design effectively solves the problem of mineral particles blocking the screen holes during the screening process and improves the screening efficiency. However, in actual application, there are still some deficiencies in this patent. When in use, minerals are prone to accumulate on one side and cannot be evenly distributed on the entire screen surface, affecting the screening effect. In addition, the screened minerals can only be discharged from the bottom of the device, and the minerals remaining on the screen need to be manually removed, which is inconvenient and inefficient.

[0004] In view of this, there is an urgent need to provide a screening device for mine exploitation that can disperse ore materials, ensure their even distribution on the screen surface for screening operations, and achieve the automatic separate discharging of minerals of different sizes. Content of the Utility Model

[0005] In order to overcome the shortcomings that the screening equipment in the existing patent is prone to material accumulation, uneven distribution, and the inability to automatically separate and discharge minerals of different sizes when processing ores, the utility model provides a screening device for mine exploitation that can disperse ore materials, ensure their even distribution on the screen surface for screening operations, and achieve the automatic separate discharging of minerals of different sizes.

[0006] To solve the above problems, the present utility model adopts the following technical solutions: A screening device for mine exploitation, comprising a base, on the top of which a protective frame is provided. A servo motor is installed on the outer side surface of the protective frame. Inside the lower part of the protective frame, symmetrically distributed rubber rollers are rotatably installed. Among them, one rubber roller is directly connected to the output shaft of the servo motor, and the two rubber rollers are connected by a flat belt in a transmission manner. Inside the upper part of the protective frame, a connecting frame is installed. Inside the connecting frame, a screening plate arranged obliquely is provided. At the four corner positions of the outer part of the connecting frame, wedge-shaped fixing plates are fixedly connected. At the corresponding positions outside the protective frame, guiding grooves are provided. The wedge-shaped fixing plates can move along the guiding grooves. Springs are connected between the wedge-shaped fixing plates and the protective frame. In addition, at both ends of each rubber roller, four-corner rotating blocks are equipped, and the four-corner rotating blocks are in contact and cooperation with the lower ends of the wedge-shaped fixing plates.

[0007] More preferably, on both sides of the outside of the protective frame, support plates are fixedly connected. The support plates are jointly fixedly connected with a feeding frame. The feeding frame is located above the protective frame. A dust-proof plate is detachably arranged on the top of the connecting frame.

[0008] More preferably, between the front end of the flat belt and the protective frame, a cleaning brush is provided. The brush head part of the cleaning brush is in close contact with the surface of the flat belt. At both ends of the cleaning brush, clamping plates are fixedly connected.

[0009] More preferably, on the clamping plates, pull rods are fixedly connected. The design of the pull rods.

[0010] More preferably, on the inner side surface of the protective frame, a shock-absorbing pad is provided. The shock-absorbing pad is located below the connecting frame.

[0011] More preferably, on the left side of the protective frame and the right side of the connecting frame, guiding plates are provided.

[0012] Compared with the prior art, the present utility model has the following technical effects: 1. By driving the rubber rollers to rotate through the servo motor, combined with the design of the four-corner rotating blocks and the wedge-shaped fixing plates, the screening plate can vibrate up and down. This design can not only effectively spread the ore materials evenly on the surface of the screening plate, avoiding material accumulation, but also improve the screening efficiency and quality. In addition, this device realizes the function of automatic separate discharging. Larger ore materials are discharged from the right side due to the inclined arrangement mode of the screening plate and the vibration effect, while smaller ore materials pass through the screening plate and fall on the flat belt, and are conveyed to the left by the flat belt, greatly reducing the need for manual intervention and improving the automation level of the entire screening process.

[0013] 2. The design of the feeding frame helps to concentrate the feeding point, reduce the diffusion of dust during feeding, and a dust-proof plate is installed on the top of the connecting frame, effectively preventing the dust from flying during the screening process, thereby reducing environmental pollution and improving the working environment.

[0014] 3. A cleaning brush is provided at the front end of the flat belt, which can timely remove impurities on the surface of the flat belt to ensure the normal operation of the equipment. At the same time, the cleaning brush is easy to disassemble and install through the design of the clamping plate and the pull rod, simplifying the cleaning and replacement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0016] Figure 2 It is a three-dimensional structural schematic diagram of components such as the base, protective frame and screening plate of the present utility model.

[0017] Figure 3 It is a three-dimensional sectional view of components such as the rubber roller, wedge-shaped fixing plate and four-corner rotating block of the present utility model.

[0018] Figure 4 It is a three-dimensional structural schematic diagram of components such as the support plate, feeding frame and dust-proof plate of the present utility model.

[0019] Figure 5 It is a three-dimensional sectional view of components such as the cleaning brush, clamping plate and pull rod of the present utility model.

[0020] The markings of each component in the drawings are as follows: 1. Base, 2. Protective frame, 3. Servo motor, 4. Rubber roller, 5. Flat belt, 6. Connecting frame, 7. Screening plate, 8. Wedge-shaped fixing plate, 9. Four-corner rotating block, 10. Spring, 11. Support plate, 12. Feeding frame, 13. Dust-proof plate, 14. Cleaning brush, 15. Clamping plate, 16. Pull rod, 17. Shock pad, 18. Guide plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] Embodiment 1: Please refer to Figures 1 - 3, a screening device for mine exploitation, comprising a base 1. A protective frame 2 is arranged at the top of the base 1. A servo motor 3 is installed on the outer side surface of the protective frame 2. Two symmetrically distributed rubber rollers 4 are rotatably installed at the lower part inside the protective frame 2. Among them, one rubber roller 4 is directly connected to the output shaft of the servo motor 3 to ensure that it can directly receive the power input from the servo motor 3. The two rubber rollers 4 are connected by a flat belt 5 in a transmission manner, so that the rotation of one rubber roller 4 can drive the rotation of the other rubber roller 4 synchronously. A connecting frame 6 is installed at the upper part inside the protective frame 2. A screening plate 7 arranged obliquely is arranged inside the connecting frame 6. The design of the screening plate 7 arranged obliquely helps the screened ore materials to slide down naturally along the sieve surface and be discharged. Guide plates 18 are arranged on the left side of the protective frame 2 and the right side of the connecting frame 6. The design of the guide plates 18 helps to guide the ore materials to be discharged smoothly. Wedge-shaped fixing plates 8 are fixedly connected to the four corner positions outside the connecting frame 6. Corresponding guide grooves are arranged on the outer part of the protective frame 2. The wedge-shaped fixing plates 8 can move up and down along the guide grooves to realize the vibration effect of the screening plate 7. Springs 10 are connected between the wedge-shaped fixing plates 8 and the protective frame 2. The springs 10 provide the necessary elastic support for the screening plate 7 and help to realize the up-and-down jitter of the screening plate 7. In addition, four-corner rotating blocks 9 are equipped at both ends of each rubber roller 4. The four-corner rotating blocks 9 are in contact and cooperation with the lower ends of the wedge-shaped fixing plates 8. When the rubber rollers 4 rotate, the four-corner rotating blocks 9 rotate accordingly, and intermittently lift the wedge-shaped fixing plates 8 through the four-vertex design to cause the screening plate 7 to vibrate up and down. A shock-absorbing pad 17 is arranged on the inner side surface of the protective frame 2. The shock-absorbing pad 17 is located below the connecting frame 6. The shock-absorbing pad 17 is made of rubber material and is used to absorb the vibration generated during the screening process, reduce noise and protect the device structure from damage, and extend the service life of the equipment.

[0023] When using this device, start the servo motor 3. The output shaft of the servo motor 3 drives one rubber roller 4 to rotate, and makes the other rubber roller 4 rotate synchronously through the flat belt 5. As the rubber rollers 4 rotate, the four-corner rotating blocks 9 at both ends also rotate. The four vertices on the four-corner rotating blocks 9 intermittently contact the lower ends of the wedge-shaped fixing plates 8, thereby intermittently lifting the wedge-shaped fixing plates 8. Due to the action of the springs 10, the connecting frame 6 and the screening plate 7 therein will vibrate up and down accordingly. In this way, the ore materials entering the screening plate 7 from above can be evenly spread out and screened, avoiding material accumulation and improving the screening efficiency. During the screening process, the larger ore materials remain on the screening plate 7 and are discharged from the right side under the action of the inclined arrangement and vibration of the screening plate 7, while the smaller ore materials pass through the screening plate 7 and fall on the flat belt 5 below, and are conveyed to the left side by the flat belt 5, thus realizing the separate discharge of materials of different sizes.

[0024] Example 2: On the basis of Example 1, please refer to Figure 4 , on both the left and right sides of the outside of the protective frame 2, there are fixedly connected support plates 11, and the support plates 11 are commonly fixedly connected with a feeding frame 12. The feeding frame 12 is located above the protective frame 2. A dust-proof plate 13 is detachably arranged on the top of the connecting frame 6, and the dust-proof plate 13 is installed with the connecting frame 6 in a snap-fastening manner for easy disassembly.

[0025] During actual use, ore materials are put into the device through the feeding frame 12. The design of the feeding frame 12 helps to concentrate the feeding point and reduce the diffusion of dust during feeding. Subsequently, the dust-proof plate 13 is installed on the top of the connecting frame 6 to ensure that the dust generated during the screening process is effectively controlled, avoid environmental pollution caused by a large amount of dust being raised, thereby improving the safety and comfort of the operating environment and reducing the impact on the surrounding environment.

[0026] Please refer to Figure 5 , between the front end of the flat belt 5 and the protective frame 2, there is a cleaning brush 14. The brush head part of the cleaning brush 14 is in close contact with the surface of the flat belt 5 to remove impurities attached to the flat belt 5 during its operation. On both the left and right ends of the cleaning brush 14, there are fixedly connected clamping plates 15. A clamping groove is opened at the middle position of the clamping plate 15. By aligning the clamping groove with the side of the protective frame 2 and snapping it in, the stable installation of the cleaning brush 14 can be achieved. A pull rod 16 is fixedly connected to the clamping plate 15. The design of the pull rod 16 provides a holding point for the user, so that the user can easily disassemble or install the cleaning brush 14 by holding the pull rod 16.

[0027] During the operation of the flat belt 5, the cleaning brush 14 continuously cleans the surface of the flat belt 5, effectively removing the impurities on the surface of the flat belt 5, ensuring that the surface of the flat belt 5 is clean, and preventing impurities from affecting its normal operation. When it is necessary to clean or replace the cleaning brush 14, the user can hold the pull rod 16 and pull the clamping plate 15 outwards to make the clamping plate 15 disengage from the side of the protective frame 2, so as to easily take out the cleaning brush 14 from the inside of the protective frame 2. If the cleaning brush 14 is to be reinstalled, first place the cleaning brush 14 between the flat belt 5 and the protective frame 2, and then adjust the positions of the two clamping plates 15 so that the clamping grooves on them are respectively aligned with both sides of the protective frame 2 and push them in until they are completely clamped to complete the installation of the cleaning brush 14.

[0028] The above has introduced this application in detail. Specific examples are used in this article to elaborate on the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the method and its core idea of this application; at the same time, for those of ordinary skill in the art, according to the idea of this application, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to this application.

Claims

1. A screening device for mine exploitation, comprising a base (1), a protective frame (2) is arranged on the top of the base (1), a servo motor (3) is installed on the outer side surface of the protective frame (2), and symmetrically distributed rubber rollers (4) are rotatably installed at the lower part inside the protective frame (2). Among them, A rubber roller (4) is directly connected to the output shaft of a servo motor (3), and the two rubber rollers (4) are connected by a flat belt (5) for transmission. An upper part inside the protective frame (2) is provided with a connecting frame (6), and a screening plate (7) arranged obliquely is provided inside the connecting frame (6). It is characterized in that wedge-shaped fixing plates (8) are fixedly connected to four corner positions outside the connecting frame (6), guide grooves are provided at corresponding positions outside the protective frame (2), the wedge-shaped fixing plates (8) can move along the guide grooves, springs (10) are connected between the wedge-shaped fixing plates (8) and the protective frame (2), and in addition, four-corner rotating blocks (9) are provided at both ends of each rubber roller (4), and the four-corner rotating blocks (9) are in contact and cooperation with the lower ends of the wedge-shaped fixing plates (8).

2. The screening device for mine exploitation according to claim 1, characterized in that, Support plates (11) are fixedly connected to both sides outside the protective frame (2), the support plates (11) are commonly fixedly connected with a feeding frame (12), the feeding frame (12) is located above the protective frame (2), and a dust-proof plate (13) is detachably arranged at the top of the connecting frame (6).

3. The screening device for mine exploitation according to claim 2, characterized in that, A cleaning brush (14) is arranged between the front end of the flat belt (5) and the protective frame (2), the brush head part of the cleaning brush (14) is in close contact with the surface of the flat belt (5), and clamping plates (15) are fixedly connected to both ends of the cleaning brush (14).

4. The screening device for mine exploitation according to claim 3, characterized in that, A pull rod (16) is fixedly connected to the clamping plate (15).

5. The screening device for mine exploitation according to claim 4, characterized in that, Shock-absorbing pads (17) are arranged on the inner side surface of the protective frame (2), and the shock-absorbing pads (17) are located below the connecting frame (6).

6. The screening device for mine exploitation according to claim 5, characterized in that, Guide plates (18) are arranged on the left side of the protective frame (2) and the right side of the connecting frame (6).

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