High-precision particle size circulating screening equipment

Abstract

The utility model relates to the field of screening equipment, in particular to high-precision particle size circulating screening equipment which comprises a base, a vibrating screening machine is arranged on the base and comprises a feeding port, a coarse material port and a fine material port, a rotating disc is arranged on the base below the coarse material port, two clamping grooves are formed in the rotating disc, fusiform tanks are clamped in the clamping grooves, and the fusiform tanks are arranged in the clamping grooves. The upper end and the lower end of the fusiform tank are open, a spherical plug is clamped at the lower end of the fusiform tank, an extension spring connected with the spherical plug is arranged in the fusiform tank, a stand column is arranged on the base, a lifting ring is slidably arranged on the stand column, a discharging column corresponding to the lifting ring is arranged at the upper end of the stand column, and a telescopic feeding pipe is arranged on the side face of the feeding port and fixedly connected with the stand column. The telescopic feeding pipe is connected with the feeding port through a hose, and a feeding hopper with an opening in the upper end is arranged at the free end of the telescopic feeding pipe. The silicon powder screening device can conduct secondary screening on silicon powder with large particle size after screening, and improves the screening precision of the silicon powder.

Description

Technical Field

[0001] The utility model relates to the field of screening equipment, in particular to a high-precision particle size circulation screening equipment. Background Art

[0002] Silica powder is a multi-purpose material, widely used in the electronics, construction, chemical, metallurgical, food and pharmaceutical fields. According to different uses, the silica powder needs to be ground into different particle sizes. After processing, the silica powder needs to be screened according to the particle size. The screening will separate the silica powder into fine silica powder and coarse silica powder. The coarse silica powder after screening still contains a small amount of fine silica powder, resulting in poor accuracy. Therefore, secondary screening of the coarse silica powder is very important. The existing secondary screening method is to collect manually and then perform secondary screening, which is labor-intensive. Therefore, it is particularly necessary to develop a high-precision particle size circulation screening equipment that can perform secondary screening independently. Summary of the invention

[0003] The utility model aims to provide a high-precision particle size circulation screening device, which has the advantages of being able to independently perform secondary screening and reducing the labor intensity of workers.

[0004] The technical solutions adopted are as follows:

[0005] A high-precision particle size circulation screening equipment comprises a base, on which a vibrating screening machine is arranged, the vibrating screening machine comprises a feed port, a coarse material port and a fine material port, a turntable is arranged on the base below the coarse material port, the turntable is provided with two slots, shuttle-shaped tanks are arranged in the slots, the shuttle-shaped tanks have openings at both ends, a spherical plug is arranged at the lower end of the shuttle-shaped tank, a tension spring connected to the spherical plug is arranged in the shuttle-shaped tank, a column is arranged on the base, a lifting ring is arranged on the column for sliding, a discharge column corresponding to the lifting ring is arranged on the upper end of the column, a telescopic feeding pipe is arranged on the side of the feed port, the telescopic feeding pipe is fixedly connected to the column, the telescopic feeding pipe is connected to the feed port by a hose, and a feeding hopper with an upper opening is arranged on the free end of the telescopic feeding pipe.

[0006] Preferably, an extension tube is vertically slidably provided on the side of the coarse material opening.

[0007] Preferably, a dust cover is provided on the side of the extension tube.

[0008] Preferably, a gate valve is installed on the thick extension pipe above the dust cover.

[0009] Preferably, the column is vertically provided with a first telescopic mechanism, and the first telescopic mechanism is fixedly connected to the lifting ring.

[0010] Preferably, the telescopic feed pipe includes an inner tube and an outer tube, the inner tube is slidingly and sealingly connected to the outer tube, the outer tube is fixedly connected to the hose, the inner tube is connected to the feed hopper, and a second telescopic mechanism fixedly connected to the inner tube is provided on the side of the outer tube.

[0011] Preferably, the telescopic feeding tube is tilted, and the angle between the telescopic feeding tube and the vertical direction is 60 degrees.

[0012] Compared with the prior art, the beneficial effects are:

[0013] 1. The utility model collects silicon powder discharged from the coarse material port into the shuttle-shaped tank. When the shuttle-shaped tank is filled, the turntable is controlled to rotate to transfer the shuttle-shaped tank to the top of the lifting ring. The lifting ring is used to cover the shuttle-shaped tank and lift the shuttle-shaped tank until the discharge column is inserted into the shuttle-shaped tank to support the spherical plug. Then the telescopic feed pipe is controlled to extend until the feed hopper is located directly below the shuttle-shaped tank. As the shuttle-shaped tank continues to rise, the spherical plug is separated from the shuttle-shaped tank, and the material in the shuttle-shaped tank enters the feed hopper and slides along the inner tube and the outer tube into the feed port for secondary screening, thereby improving the screening accuracy of the silicon powder.

[0014] 2. The telescopic feed pipe of the utility model is tilted, which makes it easy for the silicon powder in the feed pipe to slide along the inner pipe and the outer pipe into the feed port for secondary screening.

[0015] 3. The utility model dust shield reduces the dust from overflowing from between the extension tube and the shuttle tank during the falling process of silicon powder, and the plug valve prevents silicon powder from falling from the extension tube during the replacement of the shuttle tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of a high-precision particle size circulation screening device of the utility model.

[0017] Figure 2 yes Figure 1 The structural diagram at A in the middle,

[0018] Figure 3 This is a schematic diagram of the structure of the turntable of a high-precision particle size circulation screening device of the utility model.

[0019] Figure 4 This is a schematic diagram of the internal structure of a shuttle tank of a high-precision particle size circulation screening device of the utility model.

[0020] In the figure: 1. base, 2. vibration screening machine, 3. feed port, 4. fine material port, 5. extension pipe, 6. dust cover, 7. gate valve, 8. turntable, 9. slot, 10. shuttle tank, 11. ball plug, 12. tension spring, 13. lifting ring, 14. first telescopic mechanism, 15. discharge column, 16. hose, 17. feed hopper, 18. inner tube, 19. outer tube, 20. second telescopic mechanism, 21. column, 22. coarse material port. DETAILED DESCRIPTION

[0021] The present invention will be further described below in conjunction with specific embodiments. Figures 1 to 4 As shown:

[0022] Embodiment 1: A high-precision particle size circulation screening device comprises a base 1, on which a vibration screening machine 2 is arranged, the vibration screening machine 2 comprises a feed port 3, a coarse material port 22 and a fine material port 4, a turntable 8 is arranged on the base 1 below the coarse material port 22, the turntable 8 has two card slots 9, the two card slots 9 are symmetrical about the center of the turntable 8, a shuttle tank 10 is arranged in each of the card slots 9, the shuttle tank 10 has openings at both ends, a spherical plug 11 is arranged at the lower end of the shuttle tank 10, a tension spring 12 connected to the spherical plug 11 is arranged in the shuttle tank 10, under the elastic force of the tension spring 12, the spherical plug 11 presses the lower end of the shuttle tank 10, thereby achieving the sealing of the lower end of the shuttle tank 10,

[0023] The base 1 is provided with a column 21, and a lifting ring 13 is slidably provided on the column 21. A discharge column 15 corresponding to the lifting ring 13 is provided on the upper end of the column 21. The turntable 8 rotates to transfer the shuttle-shaped tank 10 to the upper part of the lifting ring 13, and the lifting ring 13 is used to sleeve the shuttle-shaped tank 10 and lift the shuttle-shaped tank 10. A telescopic feeding pipe is provided on the side of the feed port 3, and the telescopic feeding pipe is fixedly connected to the column 21. The telescopic feeding pipe is connected to the feed port 3 by a hose 16, and a feeding hopper 17 with an upper opening is provided at the free end of the telescopic feeding pipe.

[0024] As the shuttle tank 10 rises, the discharge column 15 is inserted into the shuttle tank 10 to support the spherical plug 11, and then the telescopic feed pipe is controlled to extend until the feed hopper 17 is located directly below the shuttle tank 10. As the shuttle tank 10 continues to rise, the spherical plug 11 is separated from the shuttle tank 10, and the material in the shuttle tank 10 enters the feed hopper 17 and slides along the inner tube 18 and the outer tube 19 into the feed port 3 for secondary screening;

[0025] Embodiment 2: A high-precision particle size circulation screening device comprises a base 1, on which a vibrating screening machine 2 is arranged, the vibrating screening machine 2 comprises a feed port 3, a coarse material port 22 and a fine material port 4, an extension tube 5 is vertically slidably arranged on the side of the coarse material port 22, a dust cover 6 is arranged on the side of the extension tube 5, a gate valve 7 is installed on the coarse extension tube 5 above the dust cover 6, a turntable 8 is arranged on the base 1 below the coarse material port 22, the turntable 8 is provided with two card slots 9, the two card slots 9 are symmetrical about the center of the turntable 8, a shuttle tank 10 is clamped in the card slots 9, the shuttle tank 10 has openings at both ends, a spherical plug 11 is clamped at the lower end of the shuttle tank 10, a tension spring 12 connected to the spherical plug 11 is arranged in the shuttle tank 10, under the elastic force of the tension spring 12, the spherical plug 11 presses the lower end of the shuttle tank 10, thereby realizing the sealing of the lower end of the shuttle tank 10,

[0026] The dust shield 6 reduces the dust generated during the silicon powder falling process from overflowing from between the extension tube 5 and the shuttle tank 10, and the gate valve 7 prevents the silicon powder from falling from the extension tube 5 during the replacement of the shuttle tank 10.

[0027] The base 1 is provided with a column 21, and a lifting ring 13 is slidably provided on the column 21. A first telescopic mechanism 14 is vertically provided on the column 21, and the first telescopic mechanism 14 is fixedly connected to the lifting ring 13. A discharge column 15 corresponding to the lifting ring 13 is provided on the upper end of the column 21. The turntable 8 rotates to transfer the shuttle tank 10 to the top of the lifting ring 13, and the lifting ring 13 is used to cover the shuttle tank 10 and lift the shuttle tank 10. A telescopic feeding pipe is provided on the side of the feed port 3. The telescopic feed pipe is fixedly connected to the column 21, and the telescopic feed pipe is connected to the feed port 3 by a hose 16. A feed hopper 17 with an upper opening is arranged at the free end of the telescopic feed pipe. The telescopic feed pipe is inclined, and the angle between the telescopic feed pipe and the vertical direction is 60 degrees. The telescopic feed pipe includes an inner tube 18 and an outer tube 19, and the inner tube 18 is slidingly and sealingly connected to the outer tube 19. The outer tube 19 is fixedly connected to the hose 16, and the inner tube 18 is connected to the feed hopper 17. A second telescopic mechanism 20 fixedly connected to the inner tube 18 is arranged on the side of the outer tube 19.

[0028] The specific working process is as follows: when screening silicon powder, put the silicon powder into the feed port 3, start the vibrating screen 2 to separate the silicon powder into fine silicon powder and coarse silicon powder, and the coarse silicon powder is discharged from the coarse material port 22, control the turntable 8 to rotate to the shuttle tank 10 to the bottom of the coarse material port 22, control the extension tube 5 to extend and insert into the shuttle tank 10, use the dust cover 6 to cover the shuttle tank 10, when the shuttle tank 10 is filled, control the extension tube 5 to retract and close the gate valve 7, control the turntable 8 to rotate to transfer the shuttle tank 10 to the Above the lifting ring 13, the shuttle tank 10 is sleeved and lifted by the lifting ring 13. As the shuttle tank 10 rises, the discharge column 15 is inserted into the shuttle tank 10 to support the spherical plug 11, and then the telescopic feed pipe is controlled to extend until the feed hopper 17 is located directly below the shuttle tank 10. As the shuttle tank 10 continues to rise, the spherical plug 11 is separated from the shuttle tank 10, and the material in the shuttle tank 10 enters the feed hopper 17 and slides along the inner tube 18 and the outer tube 19 to the feed port 3 for secondary screening.

[0029] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A high-precision particle size circulation screening device, characterized in that: It includes a base, on which a vibration screening machine is arranged, the vibration screening machine includes a feed port, a coarse material port and a fine material port, a turntable is arranged on the base below the coarse material port, the turntable is provided with two slots, shuttle-shaped tanks are arranged in the slots, the shuttle-shaped tanks have openings at both ends, a spherical plug is arranged at the lower end of the shuttle-shaped tank, a tension spring connected to the spherical plug is arranged in the shuttle-shaped tank, a column is arranged on the base, a lifting ring is arranged on the column for sliding, a discharge column corresponding to the lifting ring is arranged on the upper end of the column, a telescopic feeding pipe is arranged on the side of the feed port, the telescopic feeding pipe is fixedly connected to the column, the telescopic feeding pipe is connected to the feed port by a hose, and a feeding hopper with an upper opening is arranged on the free end of the telescopic feeding pipe.

2. A high-precision particle size circulation screening device as claimed in claim 1, characterized in that: An extension pipe is vertically slidably arranged on the side of the coarse material opening.

3. A high-precision particle size circulation screening device as claimed in claim 2, characterized in that: A dust cover is arranged on the side of the extension tube.

4. A high-precision particle size circulation screening device as claimed in claim 3, characterized in that: A plug valve is installed on the thick extension pipe above the dust cover.

5. A high-precision particle size circulation screening device as claimed in claim 1, characterized in that: The column is vertically provided with a first telescopic mechanism, and the first telescopic mechanism is fixedly connected to the lifting ring.

6. A high-precision particle size circulation screening device as claimed in claim 1, characterized in that: The telescopic feeding pipe comprises an inner pipe and an outer pipe, the inner pipe is slidingly and sealingly connected to the outer pipe, the outer pipe is fixedly connected to the hose, the inner pipe is connected to the feeding hopper, and a second telescopic mechanism fixedly connected to the inner pipe is arranged on the side of the outer pipe.

7. A high-precision particle size circulation screening device as claimed in claim 1, characterized in that: The telescopic feeding tube is tilted, and the angle between the telescopic feeding tube and the vertical direction is 60 degrees.

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