Silica sand screening device

Abstract

The utility model relates to the technical field of silica sand screening, in particular to a silica sand screening device which comprises a box body. The sealing plate is connected to the inlet of the box body; the feeding hole is formed in the sealing plate; the flattening assembly is arranged on the sealing plate; the partition plate is fixedly connected to the top of the inner wall of the box body; the first sieve plate is used for conducting primary sieving on the silica sand; the sieve plate II is used for carrying out secondary sieving on the silica sand; the connecting rod is fixedly connected to the bottom of the sieve plate I and the top of the sieve plate II; the discharging opening is formed in the positions, corresponding to the first sieve plate and the second sieve plate, of the box body; the material guide plate is connected to the discharge hole in a sliding manner; the electric push rod is fixedly mounted on the outer side of the box body; and the vibration motor is mounted on the box body, in this way, the possibility that a large amount of dust flies around in the silica sand putting process is reduced, silica sand accumulated at a certain position can be evenly spread, and the screening efficiency of the silica sand is improved.

Description

Technical Field

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

[0002] Silica sand, also known as silicon dioxide or quartz sand, is a hard, wear-resistant, chemically stable silicate mineral. Its main mineral component is SiO2. Silica sand is milky white or colorless and translucent, with a hardness of 7, brittle without cleavage, a shell-like fracture, oily luster, and a relative density of 2.65. Its chemical, thermal and mechanical properties have obvious anisotropy and high refractory properties. Silica sand needs to be screened according to usage requirements before use in order to obtain silica sand of different particle sizes.

[0003] Patent document CN217797262U discloses a multi-stage screening device for silica sand, "including a box body, one end of which is provided with an inlet and the other end of which is provided with an outlet; a leg fixedly mounted on one end of the box body near the outlet; a first screen plate, one end of which is rotatably connected to the inner wall of the box body, and the other end is connected to a first discharge piece on the box body, for primary screening of silica sand and discharging the screened silica sand through the first discharge piece; a second screen plate, one end of which is rotatably connected to the inner wall of the box body, and the other end is connected to a second discharge piece on the box body, for secondary screening of silica sand and discharging the screened silica sand through the second discharge piece; a vibration motor mounted on the box body. The utility model is generally By setting the first discharging member and the second discharging member in cooperation, the silica sand screened by the first screen plate and the second screen plate can be quickly discharged, the operation is convenient and stable, it does not affect the normal screening, and it is convenient for subsequent screening operations, thereby improving the screening efficiency. "The opening area of ​​the box body in the device is large, and no shielding structure is set. In the process of putting in silica sand, dust will be raised and float in the air, affecting the breathing environment of the operator, and the silica sand will gather and fall at a certain position on the first screening plate, and cannot be quickly and evenly spread on the first screening plate, reducing the screening area of ​​the first screening plate and reducing the screening efficiency of silica sand. For this reason, we propose a silica sand screening device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a silica sand screening device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: 1. A silica sand screening device, characterized in that it comprises: a box body, the top of the box body is provided with an inlet, and the bottom of the box body is provided with an outlet; a sealing plate, the sealing plate is connected to the inlet of the box body; a feed port, the feed port is installed on the sealing plate, the feed port is connected to the box body, and the feed port is funnel-shaped; a flattening component, the flattening component is arranged on the sealing plate; a partition plate, the partition plate is circular, a plurality of pores for silica sand flow are opened on the partition plate, and the partition plate is fixedly connected to the top of the inner wall of the box body; a leg, the leg is fixedly installed at one end of the box body near the outlet; a sieve plate 1, the sieve plate 1 is slidably connected to the inner wall of the box body, and the sieve plate 1 is used for primary screening of silica sand; a sieve plate 2, the sieve plate Plate 2 is slidably connected to the inner wall of the box, and the sieve plate 2 is used for secondary screening of silica sand; a connecting rod, the connecting rod is fixedly connected to the bottom of sieve plate 1 and the top of sieve plate 2; a discharge port, the discharge port is opened at the position of sieve plate 1 and sieve plate 2 on the box; a guide plate, the guide plate is slidably connected to the discharge port, and the ends of sieve plate 1 and sieve plate 2 close to the discharge port are fixedly connected to the guide plate; an electric push rod, the electric push rod is fixedly installed on the outside of the box, and the telescopic end of the electric push rod is fixedly connected to the position of sieve plate 1 located outside the box; a baffle, the baffle is fixedly connected to the bottom of sieve plate 1 and sieve plate 2 close to the discharge port; a vibration motor, the vibration motor is installed on the box, and the vibration motor is used to drive the box to vibrate sieve plate 1 and sieve plate 2 to complete multi-stage screening.

[0006] Preferably, the flattening assembly includes a driving motor, a vertical rod and a scraper. The driving motor is installed on the top of the sealing plate. The output end of the driving motor passes through the interior of the sealing plate and is fixedly connected to the vertical rod. The bottom of the vertical rod is fixedly connected to the scraper, and the scraper is attached to the partition.

[0007] Preferably, a mounting block adapted to the inner wall of the sealing plate is fixedly connected to the outer side of the box body at the inlet, and the sealing plate is threadedly connected to the mounting block.

[0008] Preferably, the sieve plate 1 and the sieve plate 2 are both placed obliquely.

[0009] Preferably, the bottom of the baffle protrudes from the bottom of the discharge port.

[0010] Preferably, a slide groove is provided on the inner wall of the box body, and a slider is fixedly connected to one end of the sieve plate 1 and the sieve plate 2 away from the discharge port, and the slider is slidably connected in the slide groove.

[0011] Preferably, one end of a return spring is fixedly connected to the bottom of the inner wall of the slide groove, and the other end of the return spring is fixedly connected to the bottom of the slider.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the combined use of the sealing plate and the feed port can form a shield at the inlet of the box, reduce the circulation space inside the box that contacts the outside air, reduce the possibility of a large amount of dust flying around during the silica sand placement process, improve the air quality, and reduce the impact on the operator's respiratory tract; the setting of the flattening component can evenly flatten the silica sand accumulated in a certain place, increase the screening area of ​​the sieve plate one, further improve the screening efficiency of the silica sand, and the structure is simple and easy to operate; the combined use of the sieve plate one, the sieve plate two, the connecting rod, the discharge port, the guide plate, the electric push rod and the baffle can quickly release the silica sand screened out of multiple stages at the same time under the same power, without affecting the subsequent screening operation, and improving the screening efficiency; the combined use of the chute and the slider increases the connectivity of the sieve plate one, the sieve plate two and the box, and improves the moving stability of the sieve plate one and the sieve plate two in the box; the setting of the reset spring can maintain the stability of the oblique placement of the sieve plate one and the sieve plate two. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a cross-sectional view of the box of the utility model;

[0014] Figure 2 This is a schematic diagram of the downward movement of the sieve plate 1 and the sieve plate 2;

[0015] Figure 3 for Figure 2 A is an enlarged view.

[0016] In the figure: 1. Box body; 2. Inlet; 3. Outlet; 4. Sealing plate; 5. Feed inlet; 6. Partition; 7. Leg; 8. Screen plate 1; 9. Screen plate 2; 10. Connecting rod; 11. Discharge port; 12. Guide plate; 13. Electric push rod; 14. Baffle; 15. Vibration motor; 16. Drive motor; 17. Vertical rod; 18. Scraper; 19. Mounting block; 20. Slide; 21. Slider; 22. Return spring. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3The utility model provides a technical solution: a silica sand screening device, comprising: a box body 1, an inlet 2 is provided on the top of the box body 1, and an outlet 3 is provided on the bottom of the box body 1; a sealing plate 4, the sealing plate 4 is connected to the inlet 2 of the box body 1; a feed port 5, the feed port 5 is installed on the sealing plate 4, the feed port 5 is connected to the box body 1, and the feed port 5 is funnel-shaped; a flattening component, the flattening component is arranged on the sealing plate 4; a partition 6, the partition 6 is circular, and a plurality of pores for silica sand flow are provided on the partition 6, and the partition 6 is fixedly connected to the top of the inner wall of the box body 1; a leg 7, the leg 7 is fixedly installed at one end of the box body 1 near the outlet 3; a sieve plate 8, the sieve plate 8 is slidably connected to the inner wall of the box 1, and the sieve plate 8 is used for primary screening of silica sand; the sieve plate 29, sieve plate 29 is slidably connected to the inner wall of the box body 1, and sieve plate 29 is used for secondary screening of silica sand; connecting rod 10, connecting rod 10 is fixedly connected to the bottom of sieve plate 18 and the top of sieve plate 29; discharge port 11, discharge port 11 is arranged at the position of sieve plate 18 and sieve plate 29 on the box body 1; guide plate 12, guide plate 12 is slidably connected to the discharge port 11, and the ends of sieve plate 18 and sieve plate 29 close to the discharge port 11 are fixedly connected to the guide plate 12; electric push rod 13, electric push rod 13 is fixedly installed on the outside of the box body 1, and the telescopic end of electric push rod 13 is fixedly connected to the position of sieve plate 18 located outside the box body 1; baffle 14, baffle 14 is fixedly connected to the bottom of sieve plate 18 and sieve plate 29 close to the discharge port 11;The vibration motor 15 is installed on the box body 1. The vibration motor 15 is used to drive the box body 1 to vibrate with the sieve plate 1 8 and the sieve plate 2 9 to complete multi-stage screening. The coordinated use of the sealing plate 4 and the feed port 5 can form a shield on the inlet 2 of the box body 1, reduce the circulation space inside the box body 1 that contacts the outside air, reduce the possibility of a large amount of dust flying in the process of putting the silica sand in, improve the air quality, and reduce the impact on the operator's respiratory tract. The silica sand to be screened is put into the box body 1 from the feed port 5, and the silica sand flows through the inlet 2 through the feed port 5 and is placed on the partition 6. Under the action of the vibration motor 15, the silica sand on the partition 6 falls, and the box body 1 drives the sieve plate 1 8 and the sieve plate 2 9 to vibrate to screen the silica sand. Part of the silica sand sieved from the sieve plate 1 8 falls on the sieve plate 2 9, and then the remaining silica sand continues to fall under the screening of the sieve plate 2 9, and is finally released from the outlet 3 at the bottom of the box body 1. The sieve plate 1 8 and the sieve plate 2 The oblique placement of plate 2 9 allows the silica sand screened by sieve plate 1 8 and sieve plate 2 9 to quickly slide obliquely close to the discharge port 11. The setting of connecting rod 10 can simultaneously slide sieve plate 1 8 and sieve plate 2 9 up and down under the same power action, start the electric push rod 13 to drive sieve plate 1 8 and sieve plate 2 9 to move down, and then drive the guide plate 12 to slide at the discharge port 11, and the guide plate 12 no longer abuts against the top of the discharge port 11, and the blocking of the baffle 14 to the discharge port 11 is released. The silica sand screened on sieve plate 1 8 and sieve plate 2 9 can be quickly released from the discharge port 11 along the guide plate 12, without affecting the subsequent screening operation, and improving the screening efficiency. When in use, the driving motor 16, the electric push rod 13 and the vibration motor 15 are all controlled by the connected power supply and control switch arranged outside the box body 1. The circuits and modules involved are all existing technologies, which can be fully realized by those skilled in the art without further explanation. ;

[0019] Furthermore, the flattening assembly includes a driving motor 16, a vertical rod 17 and a scraper 18. The driving motor 16 is installed on the top of the sealing plate 4. The output end of the driving motor 16 passes through the inside of the sealing plate 4 and is fixedly connected to the vertical rod 17. The bottom of the vertical rod 17 is fixedly connected to the scraper 18. The scraper 18 is attached to the partition 6. The driving motor 16 is started to drive the vertical rod 17 to rotate. The rotation of the vertical rod 17 drives the scraper 18 to rotate on the partition 6, which can evenly flatten the silica sand accumulated at a certain place on the partition 6, and then fall onto the screen plate 8 through the pores on the partition 6, thereby increasing the screening area of ​​the screen plate 8 and further improving the screening efficiency of the silica sand. The structure is simple and easy to operate.

[0020] Furthermore, a mounting block 19 adapted to the inner wall of the sealing plate 4 is fixedly connected to the outer side of the box body 1 at the inlet 2, and the sealing plate 4 is threadedly connected to the mounting block 19, so as to facilitate the rapid disassembly and assembly of the sealing plate 4 in the box body 1 and the inspection and maintenance of the internal structural components of the box body 1.

[0021] Furthermore, the sieve plate 1 8 and the sieve plate 2 9 are both placed obliquely to increase the sliding speed of the silica sand.

[0022] Furthermore, the bottom of the baffle 14 protrudes from the bottom of the discharge port 11 to prevent the silica sand from being discharged from the discharge port 11 during the vibration of the box body 1 .

[0023] Furthermore, a slide groove 20 is opened on the inner wall of the box body 1, and a slider 21 is fixedly connected to the end of the sieve plate 8 and the sieve plate 2 9 away from the discharge port 11. The slider 21 is slidably connected in the slide groove 20. When the sieve plates 1 8 and the sieve plates 2 9 move up and down in the box body 1, the slider 21 is driven to slide in the slide groove 20, thereby increasing the connectivity between the sieve plates 1 8, the sieve plates 2 9 and the box body 1 and improving the movement stability of the sieve plates 1 8 and the sieve plates 2 9 in the box body 1.

[0024] Furthermore, one end of a return spring 22 is fixedly connected to the bottom of the inner wall of the slide groove 20, and the other end of the return spring 22 is fixedly connected to the bottom of the slider 21. The setting of the return spring 22 provides support for the slider 21, sieve plate 1 8 and sieve plate 2 9, thereby maintaining the stability of the oblique placement of sieve plates 1 8 and sieve plates 2 9.

[0025] Working principle: When in use, the combined use of the sealing plate 4 and the feed port 5 can form a shield on the inlet 2 of the box body 1, reduce the circulation space inside the box body 1 that contacts the outside air, reduce the possibility of a large amount of dust flying around during the silica sand placement process, improve air quality, and reduce the impact on the operator's respiratory tract. The silica sand to be screened is placed into the box body 1 from the feed port 5, and the silica sand flows through the feed port 5 through the inlet 2 and is placed on the partition 6. The drive motor 16 is started to drive the vertical rod 17 to rotate, and the rotation of the vertical rod 17 drives the scraper 18 to rotate on the partition 6, which can evenly spread the silica sand accumulated at a certain place on the partition 6, and then fall onto the screen plate 8 through the pores on the partition 6, thereby increasing the screening area of ​​the screen plate 8 and improving the screening efficiency of the silica sand. The structure is simple and easy to operate. Under the action of the vibration motor 15, the silica sand on the partition 6 falls, and the box body 1 drives the screen plate 18 to rotate. The sieve plate 8 and the sieve plate 2 9 vibrate to screen the silica sand, and part of the silica sand screened by the sieve plate 8 falls on the sieve plate 2 9, and then the remaining silica sand continues to fall under the screening of the sieve plate 2 9, and is finally released from the outlet 3 at the bottom of the box body 1. The oblique placement of the sieve plates 1 8 and the sieve plates 2 9 makes the silica sand screened by the sieve plates 1 8 and the sieve plates 2 9 quickly slide obliquely and approach the discharge port 11. The setting of the connecting rod 10 can simultaneously slide the sieve plates 1 8 and the sieve plates 2 9 up and down under the same power action, and the electric push rod 13 is started to drive the sieve plates 1 8 and the sieve plates 2 9 to move downward, thereby driving the guide plate 12 to slide at the discharge port 11, and the guide plate 12 no longer abuts against the top of the discharge port 11, and the blocking of the baffle plate 14 to the discharge port 11 is released. The silica sand screened on the sieve plates 1 8 and the sieve plates 2 9 can be quickly released from the discharge port 11 along the guide plate 12, without affecting the subsequent screening operation, thereby improving the screening efficiency.

[0026] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A silica sand screening device, characterized in that: include: A box body (1), wherein the top of the box body (1) is provided with an inlet (2), and the bottom of the box body (1) is provided with an outlet (3); A sealing plate (4), wherein the sealing plate (4) is connected to the inlet (2) of the box body (1); A feed inlet (5), the feed inlet (5) being mounted on the sealing plate (4), the feed inlet (5) being connected to the box body (1), and the feed inlet (5) being funnel-shaped; A flattening assembly, wherein the flattening assembly is arranged on the sealing plate (4); A partition (6), the partition (6) is circular, a plurality of pores for the flow of silica sand are opened on the partition (6), and the partition (6) is fixedly connected to the top of the inner wall of the box body (1); A supporting leg (7), wherein the supporting leg (7) is fixedly mounted on one end of the box body (1) close to the outlet (3); A sieve plate (8), wherein the sieve plate (8) is slidably connected to the inner wall of the box body (1), and the sieve plate (8) is used for primary screening of silica sand; A second sieve plate (9), the second sieve plate (9) being slidably connected to the inner wall of the box body (1), and the second sieve plate (9) being used for secondary screening of silica sand; A connecting rod (10), wherein the connecting rod (10) is fixedly connected to the bottom of the first sieve plate (8) and the top of the second sieve plate (9); A discharge port (11), wherein the discharge port (11) is provided on the box body (1) at positions corresponding to the sieve plate 1 (8) and the sieve plate 2 (9); A material guide plate (12), wherein the material guide plate (12) is slidably connected to the material outlet (11), and one end of the sieve plate 1 (8) and the sieve plate 2 (9) close to the material outlet (11) is fixedly connected to the material guide plate (12); An electric push rod (13), the electric push rod (13) is fixedly mounted on the outside of the box body (1), and the telescopic end of the electric push rod (13) is fixedly connected to the position of the sieve plate 1 (8) located on the outside of the box body (1); A baffle (14), wherein the baffle (14) is fixedly connected to the bottom of the sieve plate 1 (8) and the sieve plate 2 (9) near the discharge port (11); A vibration motor (15), wherein the vibration motor (15) is installed on the box body (1), and the vibration motor (15) is used to drive the box body (1) to vibrate the sieve plate 1 (8) and the sieve plate 2 (9) to complete multi-stage screening.

2. A silica sand screening device according to claim 1, characterized in that: The flattening assembly comprises a driving motor (16), a vertical rod (17) and a scraper (18); the driving motor (16) is installed on the top of the sealing plate (4); the output end of the driving motor (16) passes through the inside of the sealing plate (4) and is fixedly connected to the vertical rod (17); the bottom of the vertical rod (17) is fixedly connected to the scraper (18); and the scraper (18) is attached to the partition (6).

3. A silica sand screening device according to claim 1, characterized in that: A mounting block (19) adapted to the inner wall of the sealing plate (4) is fixedly connected to the outer side of the box body (1) at the inlet (2), and the sealing plate (4) is threadedly connected to the mounting block (19).

4. A silica sand screening device according to claim 1, characterized in that: The sieve plate 1 (8) and the sieve plate 2 (9) are both placed obliquely.

5. A silica sand screening device according to claim 1, characterized in that: The bottom of the baffle (14) protrudes from the bottom of the discharge port (11).

6. A silica sand screening device according to claim 1, characterized in that: The inner wall of the box body (1) is provided with a slide groove (20), and the ends of the sieve plate 1 (8) and the sieve plate 2 (9) away from the discharge port (11) are fixedly connected with a slider (21), and the slider (21) is slidably connected in the slide groove (20).

7. A silica sand screening device according to claim 6, characterized in that: One end of a return spring (22) is fixedly connected to the bottom of the inner wall of the slide groove (20), and the other end of the return spring (22) is fixedly connected to the bottom of the slide block (21).

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