Vibrating sand screening machine

Abstract

The utility model relates to a vibrating sand screening machine which comprises a sand screening shell, a plurality of feeding ports are formed in the top of the sand screening shell, an equipartition device is arranged at the tops of the feeding ports, a large-aperture screen plate and a small-aperture screen are sequentially arranged in the sand screening shell from top to bottom, and the interior of the sand screening shell is divided into three cavities by the large-aperture screen plate and the small-aperture screen. A large-aperture sieve plate is arranged in the sand screening shell, the large-aperture sieve plate is arranged in the sand screening shell, a large sand cavity, a medium sand cavity and a fine sand cavity are sequentially arranged in the sand screening shell from top to bottom, discharging ports which are separated from one another are formed in the tail ends of the large sand cavity, the medium sand cavity and the fine sand cavity, a conveying plate is fixedly connected below the feeding ports and on one side of the large-aperture sieve plate, and the lower portion of the sand screening shell is connected with a base through a vibration device. The sand screening device is reasonable in structure, sand and gravel enter the conveying plate in the sand screening shell from the different feeding ports in a relatively uniform mode through the uniform distribution device, the feeding amount is effectively increased, and meanwhile the working efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of production equipment, and in particular to a vibrating sand screen machine. Background Technology

[0002] Vibrating sand screens are high-efficiency mechanical equipment for screening granular materials, widely used in industries such as construction, mining, metallurgy, and chemicals. A typical vibrating sand screen consists of components such as a screen box, vibrator, screen mesh, and drive unit. Its working principle is that the drive unit drives the vibrator (such as an eccentric block or eccentric wheel) to rotate, generating directional excitation force, causing the screen shell to vibrate at high frequency, thereby screening sand and gravel of different fineness. However, existing sand screens have relatively small capacities, and when the sand and gravel conveying flow rate is too large, it is easy to clog the feed inlet, affecting screening efficiency. Utility Model Content

[0003] In order to overcome the shortcomings of the existing problems mentioned above, this utility model provides a vibrating sand screen machine.

[0004] The technical solution adopted by this utility model to solve its technical problem is as follows: a vibrating sand screening machine, including a sand screening shell, a plurality of feed inlets are opened on the top of the sand screening shell, and a uniform distribution device is provided on the top of the feed inlets. The uniform distribution device includes an inclined uniform distribution shell, one side of the uniform distribution shell is connected to the feed inlets through a plurality of distribution grooves, and a uniform distribution baffle is fixedly connected to the side of the distribution groove away from the feed direction. The distance between the adjacent uniform distribution baffles and the side wall of the uniform distribution shell is in an arithmetic sequence. No uniform distribution baffle is provided outside the distribution groove at the end of the uniform distribution shell. The sand screening shell is provided with a large-aperture screen plate and a small-aperture screen mesh from top to bottom. The large-aperture screen plate and the small-aperture screen mesh divide the interior of the sand screening shell into three cavities, from top to bottom: a large sand cavity, a medium sand cavity, and a fine sand cavity. The large sand and gravel cavity, the medium sand and gravel cavity, and the fine sand cavity are each provided with a separate discharge port at their ends. A conveying plate is fixedly connected below the inlet and to one side of the large-aperture screen plate. The bottom of the sand screening shell is connected to the base via a vibration device. In use, the sand and gravel first enter the equalization device, where they are evenly distributed by the equalization baffle and enter the sand screening shell through the inlet, falling onto the conveying plate. Then, under the action of the vibration device, they move towards the discharge port. When passing through the large-aperture screen plate, the large-sized sand and gravel remain on the large-aperture screen plate, while the medium-sized sand and gravel and fine sand fall through the holes of the large-aperture screen plate. The medium-sized sand and gravel remain on the small-aperture screen, while the fine sand falls to the bottom of the sand screening shell and continues to be transported towards the discharge port under the action of the vibration device, and is discharged through the discharge port in a classified manner.

[0005] Preferably, the vibration device includes several vibration springs and several connecting rods. The vibration springs, connecting rods and the top surface of the base form a triangle. An eccentric wheel driven by a vibration motor is provided above the base. The eccentric wheel is fixedly connected to one of the vibration springs. In use, the vibration motor drives the eccentric wheel to move the vibration springs and connecting rods, causing the sand screening shell to vibrate. While vibrating the sand screening, the sand and gravel inside the sand screening shell are transported.

[0006] Preferably, the feed inlet is an inclined inlet to prevent sand and gravel from falling vertically, reduce the impact of sand and gravel on the conveyor plate, reduce wear, and improve service life.

[0007] Preferably, the number of the material distribution troughs is equal to the number of the material inlets.

[0008] Preferably, the connection between the equalizing baffle and the material distribution trough is an arc angle, which facilitates the sand and gravel to enter the inlet along the arc angle and prevents the sand and gravel from accumulating at the connection.

[0009] The beneficial effect of this utility model is that the equalization device makes the sand and gravel relatively uniformly enter the conveying plate inside the sand screen shell from different feed ports, which effectively increases the feed amount and improves the working efficiency. Attached Figure Description

[0010] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0011] Figure 1 This is a schematic diagram of the internal structure of this utility model from the front view;

[0012] Figure 2 This is a top view of the internal structure of this utility model;

[0013] Figure 3 yes Figure 1 A magnified view of a section at point A in the middle;

[0014] Figure 4 yes Figure 1 A magnified view of a section at point B in the middle;

[0015] In the diagram, 1. Sand screening shell; 2. Feed inlet; 3. Equalizing device; 4. Equalizing shell; 5. Feed trough; 6. Equalizing baffle; 7. Large aperture screen plate; 8. Small aperture screen; 9. Conveying plate; 10. Vibrating device; 11. Base; 12. Vibrating spring; 13. Connecting rod; 14. Vibrating motor; 15. Eccentric wheel; 16. Large sand and gravel cavity; 17. Medium sand and gravel cavity; 18. Fine sand cavity; 19. Discharge port. Detailed Implementation

[0016] All features disclosed in this specification, or steps in all methods or processes disclosed herein, may be combined in any way, except for mutually exclusive features and / or steps.

[0017] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0018] like Figure 1-4 The vibrating sand screening machine shown includes a screening shell 1. The top of the screening shell 1 has several feed inlets 2. A leveling device 3 is installed on the top of each feed inlet 2. The leveling device 3 includes an inclined leveling shell 4. One side of the leveling shell 4 is connected to the feed inlets 2 via several distribution channels 5. A leveling baffle 6 is fixedly connected to the side of each distribution channel 5 away from the feed direction. The distances between adjacent leveling baffles 6 and the sidewalls of the leveling shell 4 form an arithmetic sequence. No leveling baffle 6 is installed outside the distribution channels 5 at the ends of the leveling shell 4. Inside the screening shell 1, from top to bottom, large-aperture screen plates 7 and small-aperture screens 8 are arranged sequentially. The large-aperture screen plates 7 and small-aperture screens 8 divide the interior of the screening shell 1 into three cavities: a large sand cavity 16, a medium sand cavity 17, and a fine sand cavity 18, from top to bottom. The stone cavity 17 and the fine sand cavity 18 are provided with mutually separated discharge ports 19 at their ends. A conveying plate 9 is fixedly connected to the bottom of the inlet 2 and one side of the large-aperture screen plate 7. The bottom of the sand screening shell 1 is connected to the base 11 through a vibration device 10. In use, the sand and gravel first enter the equalizing device 3. Under the action of the equalizing baffle 6, the sand and gravel are evenly distributed and enter the sand screening shell 1 through the inlet 2, falling onto the conveying plate 9. Then, under the action of the vibration device 10, it moves towards the discharge port 19. When passing through the large-aperture screen plate 7, the large-sized sand and gravel remain on the large-aperture screen plate 7, the medium-sized sand and gravel and fine sand fall from the holes of the large-aperture screen plate 7. The medium-sized sand and gravel remain on the small-aperture screen 8, and the fine sand falls to the bottom of the sand screening shell 1. Under the action of the vibration device 10, it continues to be transported towards the discharge port 19 and is discharged through the discharge port 19 in a classified manner.

[0019] The vibration device 10 includes several vibration springs 12 and several connecting rods 13. The vibration springs 12, connecting rods 13 and the top surface of the base 11 form a triangle. An eccentric wheel 15 driven by a vibration motor 14 is provided above the base 11. The eccentric wheel 15 is fixedly connected to one of the vibration springs 12. In use, the vibration motor 14 drives the eccentric wheel 15 to move the vibration springs 12 and connecting rods 13, causing the sand screening shell 1 to vibrate. While vibrating the sand screening, the sand and gravel inside the sand screening shell 1 are transported.

[0020] The feed inlet 2 is an inclined inlet to prevent sand and gravel from falling vertically, reduce the impact of sand and gravel on the conveyor plate 9, reduce wear, and improve service life.

[0021] The number of material distribution troughs 5 and the number of material inlets 2 are equal.

[0022] The connection between the equalizing baffle 6 and the material distribution trough 5 is an arc angle, which facilitates the sand and gravel to enter the inlet 2 along the arc angle and prevents the sand and gravel from accumulating at the connection. Specific Implementation

[0023] The sand and gravel first enter the equalization device 3, where they are evenly distributed by the equalization baffle 6 and enter the sand screening shell 1 through the feed inlet 2. They fall onto the conveying plate 9, and the vibrating motor 14 drives the eccentric wheel 15 to move the vibrating spring 12 and connecting rod 13, causing the sand screening shell 1 to vibrate. While vibrating the sand screening, the sand and gravel inside the sand screening shell 1 are transported. When the sand and gravel pass through the large-aperture screen plate 7, the large-sized sand and gravel remain above the large-aperture screen plate 7, while the medium-sized sand and gravel and fine sand fall through the holes of the large-aperture screen plate 7. The medium-sized sand and gravel remain above the small-aperture screen 8, while the fine sand falls to the bottom of the sand screening shell 1. Under the action of the vibrating device 10, the sand and gravel continue to be transported towards the discharge port 19 and discharged through the discharge port 19 in a classified manner.

[0024] This design is ingenious. By using a uniform distribution device, the sand and gravel are fed relatively evenly into the conveyor plate inside the screen shell from different inlets. This effectively increases the feed rate and improves work efficiency. In addition, the inlet is inclined, which reduces the impact force on the conveyor plate when the sand and gravel fall, reduces wear, and increases service life.

[0025] This invention is not limited to the specific embodiments described above. This invention extends to any new feature or combination disclosed in this specification, as well as any new method or process step or combination disclosed herein.

Claims

1. A sand shaker, characterized by: The system includes a sand screening shell (1), with several inlets (2) at the top. A distribution device (3) is installed at the top of each inlet (2). The distribution device (3) includes an inclined distribution shell (4). One side of the distribution shell (4) is connected to the inlets (2) via several distribution channels (5). A distribution baffle (6) is fixedly connected to the side of the distribution channel (5) away from the feeding direction. The distance between adjacent distribution baffles (6) and the sidewalls of the distribution shell (4) forms an arithmetic sequence. No distribution baffle (6) is installed outside the distribution channel (5) at the end of the distribution shell (4). The interior of the sand screening shell (1) is oriented from top to bottom. A large-aperture screen plate (7) and a small-aperture screen mesh (8) are arranged sequentially from top to bottom. The large-aperture screen plate (7) and the small-aperture screen mesh (8) divide the interior of the sand screening shell (1) into three cavities, which are large sand and gravel cavity (16), medium sand and gravel cavity (17) and fine sand cavity (18) from top to bottom. The large sand and gravel cavity (16), medium sand and gravel cavity (17) and fine sand cavity (18) are provided with mutually separated discharge ports (19) at their ends. A conveying plate (9) is fixedly connected below the inlet (2) and on one side of the large-aperture screen plate (7). The bottom of the sand screening shell (1) is connected to the base (11) through a vibration device (10).

2. A sand sifter according to claim 1, characterized in that: The vibration device (10) includes several vibration springs (12) and several connecting rods (13). The vibration springs (12), connecting rods (13) and the top surface of the base (11) form a triangle. An eccentric wheel (15) driven by a vibration motor (14) is provided above the base (11). The eccentric wheel (15) is fixedly connected to one of the vibration springs (12).

3. A sand sifter according to claim 1, characterized in that: The feed inlet (2) is an inclined inlet.

4. A sand sifter according to claim 1, characterized in that: The number of the material distribution troughs (5) is equal to the number of the material inlets (2).

5. A machine according to claim 1, wherein: The connection between the equal distribution baffle (6) and the material distribution trough (5) is an arc angle.

Images