Concentration device in silica sol production process

Abstract

The utility model discloses a concentration device in a silica sol production process, which belongs to the technical field of silica sol production and comprises a tank body, a protective cover is fixedly connected to the top of the tank body, a concentration component is arranged on the protective cover, and a pair of supporting inclined rods is fixedly connected to the top of the protective cover. By arranging the concentration assembly and the hanging removal assembly, efficient concentration of silica sol is achieved, when a filter membrane in the concentration assembly rotates to work, a scraping plate in the hanging removal assembly is folded and does not make contact with the inner wall of the filter membrane, it is ensured that a solvent in the silica sol is fully filtered out, the concentration quality is improved, meanwhile, unnecessary abrasion to the filter membrane can be avoided, and the service life of the silica sol is prolonged. After the concentration is finished, the scraping plate is tightly attached to the inner wall of the filter membrane, and the filter membrane rotates slowly, so that residual silica sol on the filter membrane is effectively scraped and is prevented from being dried on the filter membrane to cause blockage, meanwhile, raw material waste is avoided, and the utilization rate of raw materials is increased.

Description

Technical Field

[0001] This utility model belongs to the field of silica sol production technology, specifically a concentration device in the silica sol production process. Background Technology

[0002] Silica sol is a colloidal solution whose main component is tiny particles of silica dispersed in water. It has many excellent properties, such as high specific surface area, strong adsorption, good dispersibility and stability. Silica sol concentration is an important step in silica sol production. By reducing the solvent content in silica sol through certain methods, the concentration of silica can be increased.

[0003] The existing concentration devices in the silica sol production process have the following shortcomings: The concentration devices in the existing silica sol production process are ineffective. The existing concentration devices rotate the filter membrane while driving the scraper to rotate, which causes the solvent in the silica sol solution to be scraped off before being fully filtered out, resulting in poor concentration effect. Utility Model Content

[0004] To overcome the above-mentioned defects, this utility model provides a concentration device in the silica sol production process, which solves the problem of poor performance of existing concentration devices in the silica sol production process.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a concentration device in a silica sol production process, comprising a tank, a protective cover fixedly connected to the top of the tank, a concentration component provided on the protective cover, a pair of supporting inclined rods fixedly connected to the top of the protective cover, a cover plate fixedly connected to one end of each pair of supporting inclined rods that are close to each other, a feed inlet provided at the top of the cover plate, a scraping component provided on the cover plate, a liquid outlet provided on the outer periphery of the tank, and two pairs of supporting columns fixedly connected to the bottom of the tank;

[0006] The concentration component includes a rotating sleeve, which is rotatably connected to a protective cover. A toothed ring is coaxially fixedly connected to the outer circumference of the rotating sleeve. The bottom of the rotating sleeve penetrates the tank and is rotatably connected to it. A filter membrane is provided at the bottom of the rotating sleeve. A bottom plate is provided at the bottom of the filter membrane. A discharge port is provided at the bottom of the bottom plate. The bottom of the discharge port penetrates the tank and is fixedly connected to it.

[0007] The scraping assembly includes a housing, which is fixedly connected to a cover plate. A second servo motor is fixedly connected to the top of the housing. The output end of the second servo motor passes through the housing and is rotatably connected to it. A threaded rod is coaxially fixedly connected to the output end of the second servo motor. A nut is threaded onto the threaded rod. Rotating rods are rotatably connected to both ends of the nut. A scraper is rotatably connected to one end of the first rotating rod. A second rotating rod is rotatably connected to one side of the scraper. A connecting block is rotatably connected to one end of the second rotating rod. A connecting shaft is fixedly connected to the bottom of the housing. One side of the connecting block is fixedly connected to the connecting shaft.

[0008] As a further embodiment of this utility model: a servo motor is fixedly connected to the top of the protective cover, the output end of the servo motor passes through the protective cover and is rotatably connected to it, and a gear is fixedly connected to the output end of the servo motor on the same axis, the gear meshing with the gear ring.

[0009] As a further embodiment of this utility model: through grooves are provided on both sides of the housing that are far apart from each other, and the through grooves are adapted to the nuts.

[0010] As a further embodiment of this utility model: the bottom of the threaded rod is rotatably connected to the housing.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention achieves highly efficient concentration of silica sol by setting up a concentration component and a scraping component. When the filter membrane in the concentration component rotates, the scraper in the scraping component retracts and does not contact the inner wall of the filter membrane, ensuring that the solvent in the silica sol is fully filtered out, improving the concentration quality, and avoiding unnecessary wear on the filter membrane, thus extending the service life of the filter membrane. After concentration, the scraper adheres tightly to the inner wall of the filter membrane, and the filter membrane rotates slowly, effectively scraping off the residual silica sol on the filter membrane, preventing it from drying on the filter membrane and causing blockage, while also avoiding raw material waste and improving raw material utilization. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0014] Figure 2 This is a schematic diagram showing the cross-section of the tank body, the protective cover, and the supporting diagonal rod of this utility model;

[0015] Figure 3 This is a schematic diagram of the scraping component, cover plate cross-section, rotating sleeve cross-section, toothed ring cross-section, and filter membrane cross-section of the present invention.

[0016] Figure 4 This is a schematic cross-sectional view of the shell of this utility model.

[0017] In the diagram: 1. Tank body; 2. Protective cover; 3. Supporting diagonal rod; 4. Cover plate; 5. Inlet; 6. Outlet; 7. Support column; 8. Rotating sleeve; 9. Gear ring; 10. Filter membrane; 11. Bottom plate; 12. Outlet; 13. Servo motor one; 14. Gear; 15. Shell; 16. Servo motor two; 17. Threaded rod; 18. Nut; 19. Rotating rod one; 20. Scraper; 21. Rotating rod two; 22. Connecting block; 23. Connecting shaft. Detailed Implementation

[0018] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0019] like Figures 1-4 As shown, this utility model provides a technical solution:

[0020] A concentration device in a silica sol production process includes a tank 1, a protective cover 2 fixedly connected to the top of the tank 1, a concentration component installed on the protective cover 2, a pair of support rods 3 fixedly connected to the top of the protective cover 2, a cover plate 4 fixedly connected to the end of each pair of support rods 3 that are close to each other, a feed inlet 5 connected to the top of the cover plate 4, a scraping component installed on the cover plate 4, a liquid outlet 6 connected to the outer periphery of the tank 1, and two pairs of support columns 7 fixedly connected to the bottom of the tank 1. The concentration component can concentrate the silica sol, the filtered solvent falls into the tank 1 and can be discharged through the liquid outlet 6, and the scraping component can scrape off the silica sol remaining on the concentration component.

[0021] The concentration component includes a rotating sleeve 8, which is rotatably connected to a protective cover 2. A toothed ring 9 is coaxially fixedly connected to the outer periphery of the rotating sleeve 8. The bottom of the rotating sleeve 8 passes through the tank body 1 and is rotatably connected to it. A filter membrane 10 is provided at the bottom of the rotating sleeve 8. A bottom plate 11 is provided at the bottom of the filter membrane 10. A discharge port 12 is provided at the bottom of the bottom plate 11. The bottom of the discharge port 12 passes through the tank body 1 and is fixedly connected to it. The toothed ring 9 drives the rotating sleeve 8 to rotate on the protective cover 2. The bottom of the rotating sleeve 8 is rotatably connected to a cover plate 4. The bottom of the rotating sleeve 8 is coaxially fixedly connected to the filter membrane 10. The bottom of the filter membrane 10 is coaxially fixedly connected to the bottom plate 11. The bottom of the bottom plate 11 is rotatably connected to the discharge port 12. A valve is provided on the discharge port 12. The filter membrane 10 and the bottom plate 11 both rotate with the rotating sleeve 8, so that the solvent in the silica sol on the filter membrane 10 and the bottom plate 11 is filtered out through the filter membrane 10.

[0022] A servo motor 13 is fixedly connected to the top of the protective cover 2. The output end of the servo motor 13 passes through the protective cover 2 and is rotatably connected to it. A gear 14 is fixedly connected to the output end of the servo motor 13 on the same axis. The gear 14 meshes with the gear ring 9. When the servo motor 13 is started, the output end of the servo motor 13 drives the gear 14 to rotate, and the gear 14 drives the gear ring 9 that meshes with it to rotate.

[0023] The scraping assembly includes a housing 15, which is fixedly connected to a cover plate 4. A second servo motor 16 is fixedly connected to the top of the housing 15. The output end of the second servo motor 16 passes through the housing 15 and is rotatably connected to it. A threaded rod 17 is coaxially fixedly connected to the output end of the second servo motor 16. A nut 18 is threaded onto the threaded rod 17. Rotating rods 19 are rotatably connected to both ends of the nut 18. A scraper 20 is rotatably connected to one end of the rotating rod 19. A second rotating rod 21 is rotatably connected to one side of the scraper 20. A connecting block 22 is rotatably connected, and a connecting shaft 23 is fixedly connected to the bottom of the housing 15. One side of the connecting block 22 is fixedly connected to the connecting shaft 23. The bottom of the threaded rod 17 is rotatably connected to the housing 15. After concentration, the second servo motor 16 is started. The output end of the second servo motor 16 drives the threaded rod 17 to rotate. The threaded rod 17 drives the nut 18 to descend. The nut 18 drives the scraper 20 to approach the inner wall of the filter membrane 10 through the rotating rod 19. At the same time, the filter membrane 10 rotates slowly, and the scraper 20 effectively scrapes off the residual silica sol on the filter membrane 10.

[0024] The housing 15 has through grooves on both sides that are far apart from each other. The through grooves are adapted to the nut 18, and the nut 18 slides in the through grooves to prevent the nut 18 from rotating with the threaded rod 17.

[0025] The working principle of this utility model is as follows:

[0026] Servo motor 13 is started, and the output of servo motor 13 drives gear 14 to rotate. Gear 14 drives gear ring 9 to rotate, which in turn drives rotating sleeve 8 to rotate on protective cover 2. The bottom of rotating sleeve 8 is rotatably connected to cover plate 4. The bottom of rotating sleeve 8 is coaxially fixedly connected to filter membrane 10. The bottom of filter membrane 10 is coaxially fixedly connected to bottom plate 11. The bottom of bottom plate 11 is rotatably connected to discharge port 12. A valve is provided on discharge port 12. Filter membrane 10 and bottom plate 11 rotate with rotating sleeve 8, so that the solvent in silica sol on filter membrane 10 and bottom plate 11 is filtered out through filter membrane 10. The filtered solvent falls into the tank 1 and can be discharged through liquid outlet 6. When filter membrane 10 is rotating, scraper 20 is retracted and does not contact the inner wall of filter membrane 10, ensuring that the solvent in silica sol is fully filtered out, improving the concentration quality, and avoiding unnecessary wear on filter membrane 10, thus extending the service life of filter membrane.

[0027] After concentration, servo motor 216 is started. The output of servo motor 216 drives threaded rod 17 to rotate. Threaded rod 17 drives nut 18 to descend. Nut 18 drives scraper 20 to approach the inner wall of filter membrane 10 through rotating rod 19. At the same time, servo motor 13 makes filter membrane 10 rotate slowly. Scraper 20 effectively scrapes off the residual silica sol on filter membrane 10, preventing it from drying on filter membrane 10 and causing blockage. At the same time, it avoids raw material waste and improves raw material utilization.

[0028] The preferred embodiments of this patent have been described in detail above. However, this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. A concentration device in a process for producing a silica sol, comprising a tank body (1), characterized in that: The tank body (1) top fixedly connected with the protective cover (2), the protective cover (2) is provided with concentrated components, the protective cover (2) top fixedly connected with a pair of support inclined rod (3), a pair of the support inclined rod (3) are close to each other one end are fixedly connected with the cover plate (4), the cover plate (4) top intercommunication is provided with the feed inlet (5), the cover plate (4) is provided with scraping assembly, the tank body (1) outer circumferential intercommunication is provided with the liquid outlet (6), the tank body (1) bottom fixedly connected with two pairs of support column (7); The concentrated components include rotating sleeve (8), the rotating sleeve (8) is rotatably connected to the protective cover (2), the rotating sleeve (8) outer circumferential coaxially fixedly connected with the gear ring (9), the rotating sleeve (8) bottom penetrates the tank body (1) and is rotatably connected with it, the rotating sleeve (8) bottom is provided with filter membrane (10), the filter membrane (10) bottom is provided with bottom plate (11), the bottom plate (11) bottom is provided with the discharge port (12), the discharge port (12) bottom penetrates the tank body (1) and is fixedly connected with it; The scraping assembly includes the shell (15), the shell (15) is fixedly connected on the cover plate (4), the shell (15) top fixedly connected with servo motor two (16), the servo motor two (16) output penetrates the shell (15) and is rotatably connected with it, the servo motor two (16) output coaxially fixedly connected with threaded rod (17), the threaded rod (17) is screw connected with the nut (18), the nut (18) both ends are rotatably connected with rotating rod one (19), the rotating rod one (19) one end rotatably connected with the scraper (20), the scraper (20) one side rotatably connected with rotating rod two (21), the rotating rod two (21) one end rotatably connected with the connecting block (22), the shell (15) bottom fixedly connected with the connecting shaft (23), the connecting block (22) one side is fixedly connected with the connecting shaft (23).

2. The concentration device in a process for producing a silica sol according to claim 1, characterized by: The protective cover (2) top fixedly connected with servo motor one (13), the servo motor one (13) output penetrates the protective cover (2) and is rotatably connected with it, the servo motor one (13) output coaxially fixedly connected with the gear (14), the gear (14) and the gear ring (9) are engaged with each other.

3. The concentration device in a process for producing a silica sol according to claim 2, characterized by: The shell (15) both sides away from each other are provided with the through sliding slot, the through sliding slot is matched with the nut (18).

4. The concentration device in a process for producing a silica sol according to claim 3, characterized by: The threaded rod (17) bottom is rotatably connected with the shell (15).

Images