Particle screening device

Abstract

The utility model relates to the technical field of screening equipment, in particular to a particle screening device which comprises a U-shaped screening plate, a plurality of screening bins are divided on the screening plate through partition plates, screening holes are formed in the bottom of each screening bin, and the diameter of the screening holes in the screening bin close to the middle of the screening plate is larger. A supporting plate parallel to the sieve plate is arranged below the sieve plate, and two electric telescopic rods are symmetrically and fixedly connected to the portion, below each partition plate, of the supporting plate. According to the utility model, the U-shaped sieve plate is arranged, so that the feeding can be simultaneously carried out from the two ends, the screening efficiency can be effectively improved, and the plurality of screening bins are separated by the partition plates, so that particles with different sizes can be effectively classified and screened, and the screening efficiency is improved. The design of the sieve holes considers the characteristic of particle size distribution, and the diameter of the sieve holes of the screening bin closer to the middle of the sieve plate is larger, so that the sieve can better adapt to particles of different sizes, and the screening accuracy and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of screening equipment, in particular to a particle screening device. Background Art

[0002] Screening is a crucial step in the processing of granular materials. The purpose of screening is to classify particles according to their size to meet the needs of different application scenarios. However, traditional screening equipment often has problems such as low screening efficiency, low screening accuracy, and complex operation.

[0003] Specifically, some traditional screening devices are simple in design and cannot effectively classify particles of different sizes, resulting in poor screening results. At the same time, these devices often experience blockage and material jamming during the screening process, which seriously affects the screening efficiency and the service life of the equipment. In addition, traditional screening devices can usually only feed from a single direction, which limits the improvement of screening efficiency. In view of this, we propose a particle screening device. Utility Model Content

[0004] In order to make up for the above deficiencies, the utility model provides a particle screening device.

[0005] The technical solution of the utility model is:

[0006] A particle screening device comprises a sieve plate, which is U-shaped and has a plurality of screening bins separated by partitions. Sieve holes are provided at the bottom of each screening bin, and the aperture of the sieve holes in the screening bin closer to the middle of the sieve plate is larger. A support plate parallel to the sieve plate is provided below the sieve plate, and two electric telescopic rods are symmetrically fixedly connected to the support plate below each partition, and the piston rod ends of the electric telescopic rods are fixedly connected to the partitions. A discharge port is provided in the middle of the sieve plate, and a first recovery drawer is provided below the sieve plate below the discharge port, and second recovery drawers are provided on both sides of the first recovery drawer.

[0007] As a preferred technical solution, when the piston rod of the electric telescopic rod is retracted to the shortest, the top of the partition is flush with the top of the sieve plate and its bottom is higher than the top of the second recovery drawer.

[0008] As a preferred technical solution, the sieve plate is provided with strip-shaped perforations for the partition plate to move up and down, and the partition plate fits tightly with the strip-shaped perforations.

[0009] As a preferred technical solution, a support rod is fixedly connected to each of the four corners of the bottom of the sieve plate, and the bottom of the support rod is fixedly connected to the top of the support plate.

[0010] As a preferred technical solution, a base with a horizontal bottom is provided under the support plate, two support columns are fixedly connected at the center of the top of the base, and a rotating shaft is fixed at the center of the outer walls on both sides of the support plate close to the support column, and the rotating shaft is rotatably connected to the support column.

[0011] As a preferred technical solution, the second recovery drawer is provided with a plurality of recovery bins, and the plurality of recovery bins are respectively located below each screening bin.

[0012] As a preferred technical solution, a material blocking cover is fixedly connected to the center of the bottom of the screen plate, the bottom of the material blocking cover extends to the bottom of the support plate, and the first recovery drawer is placed on the base.

[0013] As a preferred technical solution, two vibration motors are symmetrically installed on one side of the top of the base, and the output shafts of the two vibration motors are fixedly connected to the bottom of the support plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The utility model can add materials from both ends at the same time by setting a U-shaped screen plate, which can effectively improve the screening efficiency, and separate multiple screening chambers by partitions. This design can effectively grade and screen particles of different sizes, thereby improving the screening efficiency. The design of the screen holes takes into account the characteristics of particle size distribution. The closer the screening chamber is to the middle of the screen plate, the larger the screen hole diameter is, which can better adapt to particles of different sizes and improve the accuracy and efficiency of screening. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the overall structural diagrams of the utility model;

[0017] Figure 2 This is the second schematic diagram of the overall structure of the utility model (front view);

[0018] Figure 3 This is a schematic diagram of the structure of the screen plate in the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the utility model after the sieve plate is removed from the overall structure.

[0020] The meaning of each number in the figure is:

[0021] 1. Sieve plate; 10. Screening bin; 11. Partition; 12. Electric telescopic rod; 13. Material blocking cover; 14. Sieve hole; 15. Strip perforation; 16. Feeding port; 2. Support plate; 20. Rotating shaft; 3. Base; 4. First recycling drawer; 5. Support column; 6. Second recycling drawer; 7. Vibration motor; 8. Support rod. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0024] A particle screening device includes a screen plate 1, which is U-shaped and has a plurality of screening bins 10 separated by partitions 11, and a screen hole 14 is provided at the bottom of each screening bin 10, and the closer to the middle of the screen plate 1, the larger the aperture of the screen hole 14 in the screening bin 10 is, and a support plate 2 is provided below the screen plate 1 and is parallel to the screen plate 1, and two electric telescopic rods 12 are symmetrically fixedly connected to the support plate 2 below each partition 11, and the piston rod ends of the electric telescopic rods 12 are fixedly connected to the partition 11, and a feed opening 16 is provided in the middle of the screen plate 1, and a first recovery bin 4 is provided below the feed opening 16, and second recovery bins 6 are provided on both sides of the first recovery bin 4. By setting the U-shaped screen plate 1, feeding can be carried out from both ends at the same time, which can effectively improve the screening efficiency, and multiple screening bins 10 are separated by the partition 11, and this design can effectively grade and screen particles of different sizes, thereby improving the screening efficiency. The design of the sieve holes 14 takes into account the characteristics of particle size distribution. The sieve holes 14 of the screening bin 10 closer to the middle of the sieve plate 1 have larger apertures, which can better adapt to particles of different sizes and improve the accuracy and efficiency of screening.

[0025] As a preferred embodiment of the present invention, when the piston rod of the electric telescopic rod 12 is retracted to the shortest, the top of the partition 11 is flush with the top of the sieve plate 1 and its bottom is higher than the top of the second recovery drawer 6. The state of the partition 11 when the piston rod of the electric telescopic rod 12 is retracted to the shortest is specified to ensure that the sieve plate 1 can form a flat surface when screening is not required, and it is also convenient for taking and replacing the second recovery drawer 6.

[0026] As a preferred embodiment of the present invention, the screen plate 1 is provided with strip-shaped perforations 15 for the partition plate 11 to move up and down, and the partition plate 11 is closely fitted with the strip-shaped perforations 15. The screen plate 1 is provided with strip-shaped perforations 15, allowing the partition plate 11 to move up and down therein. This design not only ensures the structural strength of the screen plate 1, but also realizes the flexible movement of the partition plate 11, further improving the flexibility and efficiency of screening.

[0027] As a preferred embodiment of the present invention, a support rod 8 is fixedly connected to each of the four corners of the bottom of the sieve plate 1, and the bottom of the support rod 8 is fixedly connected to the top of the support plate 2. The bottom of the sieve plate 1 is fixedly connected to the support plate 2 through the support rod 8, which ensures the stability of the sieve plate 1 and the stability of the screening process.

[0028] As a preferred embodiment of the present invention, a base 3 with a horizontal bottom is provided below the support plate 2, two support columns 5 are fixedly connected at the center of the top of the base 3, a rotating shaft 20 is fixed at the center of the outer walls of both sides of the support plate 2 close to the support columns 5, and the rotating shaft 20 is rotatably connected to the support columns 5. It is ensured that the support plate 2 can achieve vibration under the drive of the vibration motor 7.

[0029] As a preferred embodiment of the present invention, the second recovery drawer 6 is provided with a plurality of recovery bins, and the plurality of recovery bins are respectively located below each screening bin 10. The second recovery drawer 6 is provided with a plurality of recovery bins, which can respectively collect particles from different screening bins 10, thereby realizing accurate classification and recovery of particles of different sizes.

[0030] As a preferred embodiment of the present invention, a material blocking cover 13 is fixedly connected at the bottom center of the screen plate 1, the bottom of the material blocking cover 13 extends to the bottom of the support plate 2, and the first recovery drawer 4 is placed on the base 3. The material blocking cover 13 fixedly connected at the bottom center of the screen plate 1 can effectively prevent particles from splashing out during the screening process, ensuring the cleanliness and safety of the screening environment; at the same time, the first recovery drawer 4 is placed on the base 3 to facilitate the collection of large particles after screening.

[0031] As a preferred embodiment of the present invention, two vibration motors 7 are symmetrically mounted on one side of the top of the base 3, and the output shafts of the two vibration motors 7 are fixedly connected to the bottom of the support plate 2. The vibration motors 7 mounted on the base 3 can drive the support plate 2 and the screen plate 1 to vibrate, thereby improving the screening efficiency and screening effect, and preventing particles from clogging the screen holes 14.

[0032] When the particle screening device of the utility model is used, first, the user adds the particle material to be screened from both ends of the screen plate 1 at the same time. Since the screen plate 1 is designed in a U shape, this method of adding materials at both ends can effectively improve the screening efficiency.

[0033] Then, the granular material falls into each screening bin 10 separated by the partition 11. A sieve hole 14 is provided at the bottom of each screening bin 10, and the aperture of the sieve hole 14 gradually increases as it approaches the middle of the sieve plate 1. This design enables particles of different sizes to be graded and screened, thereby improving the accuracy and efficiency of screening.

[0034] During the screening process, the electric telescopic rod 12 can adjust the position of the partition 11 as needed, so as to connect the two adjacent screening bins 10 to ensure that the particles can roll down. When the piston rod of the electric telescopic rod 12 is retracted to the shortest, the top of the partition 11 is flush with the top of the sieve plate 1, and its bottom is higher than the top of the second recovery drawer 6, ensuring that the sieve plate 1 can form a flat surface when screening is not required.

[0035] During the screening process, the two vibration motors 7 installed on the base 3 will drive the support plate 2 and the screen plate 1 to vibrate. This vibration can improve the screening efficiency and screening effect and prevent particles from clogging the screen holes 14.

[0036] The sieved particles will fall into the recovery bin below through the sieve holes 14. Specifically, larger particles will remain on the sieve plate 1 and eventually fall into the first recovery bin 4 through the discharge port 16; while smaller particles will fall into the recovery bin of the second recovery bin 6 located below the screening bin 10 through the sieve holes 14, thereby achieving accurate classification and recovery of particles of different sizes.

[0037] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A particle screening device, comprising a screen plate (1), characterized in that: The sieve plate (1) is U-shaped and has a plurality of screening bins (10) separated by partitions (11). A sieve hole (14) is provided at the bottom of each screening bin (10), and the diameter of the sieve hole (14) in the screening bin (10) is larger as it is closer to the middle of the sieve plate (1). A support plate (2) parallel to the sieve plate (1) is provided below the sieve plate (1). Two electric telescopic rods (12) are symmetrically fixedly connected to the support plate (2) below each partition (11), and the piston rod ends of the electric telescopic rods (12) are fixedly connected to the partition (11). A discharge port (16) is provided in the middle of the sieve plate (1). A first recovery drawer (4) located below the discharge port (16) is provided below the sieve plate (1), and second recovery drawers (6) are provided on both sides of the first recovery drawer (4).

2. The particle screening device according to claim 1, characterized in that: When the piston rod of the electric telescopic rod (12) is retracted to its shortest position, the top of the partition plate (11) is flush with the top of the sieve plate (1) and its bottom is higher than the top of the second recovery drawer (6).

3. The particle screening device according to claim 2, characterized in that: The sieve plate (1) is provided with strip-shaped through holes (15) for the partition plate (11) to move up and down, and the partition plate (11) is tightly fitted with the strip-shaped through holes (15).

4. The particle screening device according to claim 3, characterized in that: A support rod (8) is fixedly connected at each of the four corners of the bottom of the sieve plate (1), and the bottom of the support rod (8) is fixedly connected to the top of the support plate (2).

5. The particle screening device according to claim 4, characterized in that: A base (3) with a horizontal bottom is provided below the support plate (2); two support columns (5) are fixedly connected at the center of the top of the base (3); a rotating shaft (20) is fixed at the center of the outer walls of both sides of the support plate (2) close to the support columns (5); and the rotating shaft (20) is rotatably connected to the support columns (5).

6. The particle screening device according to claim 5, characterized in that: The second recovery drawer (6) is provided with a plurality of recovery bins, and the plurality of recovery bins are respectively located below each screening bin (10).

7. The particle screening device according to claim 6, characterized in that: A material blocking cover (13) is fixedly connected to the center of the bottom of the sieve plate (1), and the bottom of the material blocking cover (13) extends below the support plate (2). The first recovery drawer (4) is placed on the base (3).

8. The particle screening device according to claim 7, characterized in that: Two vibration motors (7) are symmetrically mounted on one side of the top of the base (3), and the output shafts of the two vibration motors (7) are fixedly connected to the bottom of the support plate (2).

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