A nano sand mill for processing sanding suspensions

Abstract

The utility model relates to sand mill technical field, concretely is a kind of nanometer sand mill for sand mill suspending agent processing, including fixed base, the one side fixed mounting of fixed base upper end middle part has grinding cylinder, the other side fixed mounting of fixed base upper end middle part has motor, the outside of grinding cylinder one end middle part is equipped with rotary groove, the one side of rotary groove is equipped with notch, the one side of rotary groove is rotatably connected with filter plate, the outside of filter plate one end middle part is equipped with limit rotary groove.The utility model is driven rotating shaft with motor synchronous rotation by transmission belt, and then the driving gear of rotating shaft end portion drives filter plate and grinding disc reverse rotation, can peel off surface material agglomerate and grinding bead scrap in real time, effectively solve the pain point that traditional static filter screen is easy to block, ensure continuous stable discharge;While reverse rotation changes grinding bead impact angle, reduce filter plate front abrasion, greatly prolong filter plate service life, reduce consumable and shutdown maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of sand mill technology, specifically to a nano sand mill for processing sand mill suspensions. Background Technology

[0002] Sand milling suspension refers to a suspension system with ultra-fine particle size and excellent stability formed by dispersing solid active ingredients such as pesticide technicals, paint pigments and fillers, and nanoparticles in a liquid carrier through wet grinding equipment such as nano sand mills. Essentially, it is a suspension product modified by sand milling process. The key difference between nano sand mills and ordinary sand mills is that they have higher grinding precision and more precise particle size control, which can stably prepare ultra-fine powder suspension systems with narrow particle size distribution.

[0003] Traditional nano-sand mills with filters typically have static, fixed filters. Due to their high surface energy, nano-sized particles are prone to agglomeration and will adhere to the screen gaps during the grinding process, forming a filter cake layer. At the same time, tiny debris from the grinding media will also get stuck in the screen gaps. As production time increases, the blockage will gradually worsen, leading to increased pressure inside the grinding chamber, slower discharge speed, and even intermittent material shortages. This seriously affects continuous production efficiency and has certain shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a nano-sand mill for processing sand-milled suspensions, so as to solve the problems in the background art mentioned above.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A nano-sand mill for processing suspensions includes a fixed base. A grinding cylinder is fixedly installed on one side of the upper middle portion of the fixed base, and a motor is fixedly installed on the other side of the upper middle portion of the fixed base. A rotating groove is formed on the outer side of the middle portion of one end of the grinding cylinder, and a notch is formed on one side of the rotating groove. A filter plate is rotatably engaged on one side of the rotating groove. A limiting rotating groove is formed on the outer side of the middle portion of one end of the filter plate. A toothed ring is fixedly installed on the outer side of the middle portion of the filter plate. Both ends of the outer side of the middle portion of the filter plate are fixedly installed. A cover plate is fixedly installed on one end of the grinding cylinder by screws. Fixed plates are fixedly installed on both ends of the cover plate. A discharge guide is connected and fixed on one side of the lower middle portion of the cover plate. A rotating shaft is rotatably installed on one side of the upper end of the fixed base. A collar is fixedly installed on the outer side of one end of the rotating shaft, and a drive gear is fixedly installed on the other end of the rotating shaft.

[0007] In some embodiments, a bracket is fixedly installed on one side of the upper middle portion of the fixed base, and the grinding cylinder is fixedly installed on the upper end of the bracket.

[0008] In some embodiments, a fixing frame is fixedly installed on the other side of the upper middle part of the fixing base, the motor is fixedly installed in the middle of the upper end of the fixing frame, the output end of the motor is located in the middle of the grinding cylinder, and a plurality of grinding discs are evenly fixedly installed on the outer side of the middle part of the grinding cylinder.

[0009] In some embodiments, a hopper is fixedly installed at the upper end of the fixed base, and a connecting pipe is fixedly connected to the lower end of the hopper.

[0010] In some embodiments, a feed pump is fixedly installed on one side of the hopper, the input end of the connecting pipe is connected to and fixedly connected to one end of the connecting pipe, the output end of the connecting pipe is connected to and fixedly connected to a feeding pipe, and one end of the feeding pipe is connected to the grinding cylinder.

[0011] In some embodiments, the middle part of the grinding cylinder is filled with a plurality of grinding beads, a grinding zone is formed at one end of the filter plate and the grinding cylinder, and a discharge zone is formed between the filter plate and the cover plate.

[0012] In some embodiments, the two retaining rings are located on both sides of the notch, one side of the middle of the filter plate abuts against the limiting ring, the outer side of the middle of the filter plate abuts against the inner wall of the rotating groove, the toothed ring corresponds to the notch, the drive gear meshes with the toothed ring through the notch, and one end of the two fixing plates is fixedly connected by screws and the surface of the grinding cylinder.

[0013] In some embodiments, multiple arc-shaped rotating plates are uniformly fixedly installed around one side of the middle portion of the cover plate, and the multiple arc-shaped rotating plates are respectively rotatably engaged in the middle of the limiting rotating groove. A second collar is fixedly installed on the outer surface of one side of the motor output end, and a transmission belt is connected between the second collar and the first collar.

[0014] This utility model has at least the following beneficial effects:

[0015] 1. In use, this utility model drives the rotating shaft to rotate synchronously with the motor via a transmission belt. Then, the drive gear at the end of the rotating shaft drives the filter plate and the grinding disc to rotate in opposite directions. This can peel off surface material agglomerates and grinding bead debris in real time, effectively solving the problem of easy clogging of traditional static filter screens and ensuring continuous and stable material discharge. At the same time, the reverse rotation changes the impact angle of the grinding beads, reduces wear on the front of the filter plate, greatly extends the service life of the filter plate, and reduces consumable and downtime maintenance costs.

[0016] 2. In use, the filter plate achieves dual positioning by abutting against the inner wall of the grinding cylinder and the limiting ring, and by engaging with the arc-shaped rotating plate and limiting groove, thus avoiding rotational deviation and ensuring filtration and transmission accuracy. The combination of the retaining ring to block the gap can effectively prevent slurry leakage and ensure that all materials are filtered and discharged through the filter plate. In addition, the cover plate is fixed to the grinding cylinder with screws, which is convenient for disassembly and assembly, and facilitates the later inspection and replacement of the grinding beads and filter plate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the first appearance structure of the present utility model;

[0018] Figure 2 This is a schematic diagram of the second appearance structure of the present utility model;

[0019] Figure 3 This is a schematic diagram of the cross-sectional structure of the grinding cylinder of this utility model;

[0020] Figure 4 This is a schematic diagram showing the connection relationship between the feed pump, hopper, and grinding cylinder of this utility model;

[0021] Figure 5 This is a cross-sectional disassembly diagram of the grinding cylinder structure of this utility model;

[0022] Figure 6 This is a schematic diagram showing the positional relationship between the cover plate and the filter plate of this utility model.

[0023] In the diagram: 1. Fixed base; 11. Bracket; 12. Grinding cylinder; 13. Hopper; 14. Feed pump; 15. Connecting pipe; 16. Feeding pipe; 17. Fixed frame; 18. Motor; 19. Grinding disc; 20. Limiting ring; 21. Rotating groove; 22. Notch; 23. Cover plate; 24. Fixed plate; 25. Discharge guide pipe; 26. Filter plate; 27. Gear ring; 28. Retaining ring; 29. ​​Drive gear; 30. Rotating shaft; 31. Collar one; 32. Collar two; 33. Transmission belt; 35. Limiting rotating groove; 36. Arc-shaped rotating plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1: Please refer to Figure 1 - Figure 6This utility model provides a technical solution: a nano-grinding mill for processing suspensions, including a fixed base 1. A grinding cylinder 12 is fixedly installed on one side of the upper middle part of the fixed base 1, and a motor 18 is fixedly installed on the other side of the upper middle part of the fixed base 1. A rotating groove 21 is opened on the outer side of the middle part of one end of the grinding cylinder 12. A notch 22 is opened on one side of the rotating groove 21. A filter plate 26 is rotatably engaged on one side of the rotating groove 21. A limiting rotating groove 35 is opened on the outer side of the middle part of one end of the filter plate 26. A toothed ring 27 is fixedly installed on the outer side of the middle part of the filter plate 26. Both ends of the outer side of the middle part of the filter plate 26 are fixedly installed with retaining rings 28. A cover plate 23 is fixedly installed on one end of the grinding cylinder 12 by screws. Both ends of the cover plate 23 are fixedly installed with fixing plates 24. The middle part of the lower part of the cover plate 23 is... One side of the grinding cylinder 12 is connected to a discharge conduit 25. A rotating shaft 30 is rotatably mounted on one side of the upper end of the fixed base 1. A collar 31 is fixedly mounted on the outer side of one end of the rotating shaft 30. A drive gear 29 is fixedly mounted on the other end of the rotating shaft 30. The middle part of the grinding cylinder 12 is filled with multiple grinding beads. A grinding zone is formed between the filter plate 26 and one end of the grinding cylinder 12. A discharge zone is formed between the filter plate 26 and the cover plate 23. Two retaining rings 28 are located on both sides of the notch 22. One side of the middle part of the filter plate 26 abuts against the limiting ring 20. The outer side of the middle part of the filter plate 26 abuts against the inner wall of the rotating groove 21. The toothed ring 27 corresponds to the notch 22. The drive gear 29 meshes with the toothed ring 27 through the notch 22. One end of the two fixed plates 24 is fixedly connected to the surface of the grinding cylinder 12 by screws.

[0026] In this embodiment, the filter plate 26 is driven by the drive gear 29 at the end of the rotating shaft 30. The filter plate 26 rotates in a different direction from the output of the motor 18 through the meshing of the gear ring 27 with the drive gear 29. Utilizing the self-cleaning properties of the rotating filter plate 26, it can efficiently process high-viscosity, easily agglomerated nanoscale suspension slurries, effectively removing agglomerates and grinding bead fragments from nanoscale materials, thus effectively solving the problem of easy clogging in traditional static filters. Furthermore, one side of the filter plate 26 is positioned by the inner wall of the grinding cylinder 12 and the limiting ring 20, while the other side is positioned by the arc-shaped rotating plate 36 rotating and engaging with the center of the limiting groove 35. This dual positioning effectively ensures the position of the filter plate 26, preventing it from shifting during rotation. The retaining ring 28 can block the notch 22, preventing the ground suspension from leaking out. At the same time, the partitioned design of the discharge zone and the grinding zone can ensure that qualified slurry can be quickly discharged through the filter plate 26 and the discharge conduit 25, achieving continuous and stable discharge. The rotational motion of the filter plate 26 changes the impact angle of the grinding beads on the filter plate 26, reducing the front friction and impact wear of the grinding beads on the filter plate 26. It can significantly extend the service life of the filter plate 26 without frequent downtime maintenance, reduce consumable costs and production downtime. Meanwhile, the cover plate 23 is fixed to the grinding cylinder 12 by the screws at the end of the fixing plate 24, which facilitates the maintenance or replacement of the grinding beads inside the grinding cylinder 12 and the filter plate 26 in the later stage.

[0027] Example 2: As Figure 1 - Figure 6 As shown, a bracket 11 is fixedly installed on one side of the upper middle part of the fixed base 1, and a grinding cylinder 12 is fixedly installed on the upper end of the bracket 11. A fixing frame 17 is fixedly installed on the other side of the upper middle part of the fixed base 1. A motor 18 is fixedly installed in the middle of the upper end of the fixing frame 17. The output end of the motor 18 is located in the middle of the grinding cylinder 12. Multiple grinding discs 19 are evenly fixedly installed on the outer side of the middle part of the grinding cylinder 12.

[0028] In this embodiment, the bracket 11 can fix the grinding cylinder 12 to prevent it from shaking during operation, and the fixing bracket 17 can fix the motor 18. Multiple grinding discs 19 are fixedly installed on the outer side of the output end of the motor 18. The multiple grinding discs 19 are all located in the middle of the grinding cylinder 12. The output end of the motor 18 can drive the multiple grinding discs 19 to rotate when rotating. When the multiple grinding discs 19 rotate, they can drive the grinding beads and suspending agent raw materials to produce crushing and other effects, so as to improve the grinding effect.

[0029] Example 3: As Figure 1 - Figure 6 As shown, a hopper 13 is fixedly installed on the upper end of the fixed base 1, a connecting pipe 15 is fixedly connected to the lower end of the hopper 13, a feed pump 14 is fixedly installed on one side of the hopper 13, the input end of the connecting pipe 15 is fixedly connected to one end of the connecting pipe 15, and a feeding pipe 16 is fixedly connected to the output end of the connecting pipe 15. One end of the feeding pipe 16 is connected to the grinding cylinder 12.

[0030] In this embodiment, the raw material to be ground and water can be placed in the middle of the hopper 13 first, and then the feed pump 14 is started. The feed pump 14 can guide the raw material in the hopper 13 into the grinding cylinder 12 through the feed pipe 16 via the connecting pipe 15, so as to facilitate the grinding process. The feed pump 14 can not only guide the material into the grinding cylinder 12, but also start to push the material out. The grinding beads, together with multiple grinding discs 19, produce a better grinding effect.

[0031] Working principle:

[0032] like Figure 1 - Figure 6As shown, during use, the suspension raw material to be ground is added to the hopper 13 along with water according to the specified ratio. The feed pump 14 is then started, and the feed pump 14 pumps the mixed slurry into the grinding zone of the grinding cylinder 12 through the connecting pipe 15 and the feeding pipe 16. The grinding zone is the space formed by the filter plate 26 and one end of the grinding cylinder 12. The feed pump 14 not only provides the power for material conveying but also provides continuous pressure for subsequent slurry discharge. Subsequently, the motor 18 on the upper end of the fixed base 1 is started. The output shaft of the motor 18 drives multiple grinding discs 19 fixed on the outside to rotate at high speed. When the grinding discs 19 rotate, they push the grinding beads filled in the grinding cylinder 12 to make violent and irregular movements. Through the squeezing, impact, and shearing action between the grinding beads and the material particles, the material agglomerates are broken and refined to nanoscale particle size. During this process, the bracket 11 on the fixed base 1 provides stable support for the grinding cylinder 12, and the fixing frame 17 fixes the motor 18 to prevent shaking when the equipment is running at high speed, ensuring grinding stability.

[0033] During the process, the motor 18 drives the rotating shaft 30 to rotate via the transmission belt 33, and the drive gear 29 at the end of the rotating shaft 30 rotates synchronously. The drive gear 29 passes through the notch 22 of the rotating groove 21 at the end of the grinding cylinder 12 and meshes with the toothed ring 27 on the outer side of the middle of the filter plate 26, thereby driving the filter plate 26 to rotate within the rotating groove 21. Due to the transmission characteristics of the gear meshing, the rotation direction of the filter plate 26 is opposite to the rotation direction of the output end of the motor 18, i.e., the grinding disc 19. The filter plate 26 maintains a double positioning during rotation. One side is in close contact with the inner wall of the grinding cylinder 12 and the limiting ring 20, while the other side is rotatably engaged in the middle of the limiting rotating groove 35 via the arc-shaped rotating plate 36. The double positioning structure effectively prevents the filter plate 26 from shifting during high-speed rotation, ensuring transmission and filtration accuracy. At the same time, the retaining rings 28 at both ends of the outer side of the middle of the filter plate 26 completely block the notch 22, preventing the ground suspension slurry from leaking from the notch 22 and ensuring that all material is filtered through the filter plate 26 before being discharged. In the grinding zone, nanoscale materials move towards the discharge zone, specifically the space between the rotating trough 21 and the cover plate 23, under the pressure of the feed pump 14. Qualified ultrafine particles pass through the sieve openings of the filter plate 26 and enter the discharge zone. During this process, the reverse rotation of the filter plate 26 creates a self-cleaning effect, effectively removing material agglomerates and grinding bead debris adhering to the surface of the filter plate 26, completely solving the problem of easy clogging in traditional static filters. Simultaneously, the reverse rotation changes the impact angle of the grinding beads on the filter plate 26, reducing frontal friction and impact wear, and extending the service life of the filter plate 26. The transmission belt 33 is an open-type belt, and the drive gear 29 and the toothed ring 27 on the outer side of the middle of the filter plate 26 are in a single-stage external meshing engagement.

[0034] The qualified slurry entering the discharge zone is finally discharged through the discharge conduit 25 below the cover plate 23, achieving continuous and stable discharge. When it is necessary to maintain the equipment or replace the grinding beads and filter plates 26, simply unscrew the screws on the fixing plates 24 at both ends of the cover plate 23 to remove the cover plate 23 and inspect or replace the grinding beads and filter plates 26 inside the grinding cylinder 12. The disassembly and assembly are convenient, reducing maintenance costs.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A nano-grinding mill for processing suspensions, comprising a fixed base (1), wherein a grinding cylinder (12) is fixedly mounted on one side of the upper middle portion of the fixed base (1), and a motor (18) is fixedly mounted on the other side of the upper middle portion of the fixed base (1), characterized in that: A rotating groove (21) is provided on the outer side of the middle part of one end of the grinding cylinder (12). A notch (22) is provided on one side of the rotating groove (21). A filter plate (26) is rotatably clamped on one side of the rotating groove (21). A limiting rotating groove (35) is provided on the outer side of the middle part of one end of the filter plate (26). A toothed ring (27) is fixedly installed on the outer side of the middle part of the filter plate (26). A retaining ring (28) is fixedly installed on both ends of the outer side of the middle part of the filter plate (26). A cover plate (23) is fixedly installed on one end of the grinding cylinder (12) by screws. A fixing plate (24) is fixedly installed on both ends of the cover plate (23). A discharge guide pipe (25) is connected and fixed on one side of the middle part of the lower part of the cover plate (23). A rotating shaft (30) is rotatably installed on one side of the upper end of the fixing seat (1). A collar (31) is fixedly installed on the outer side of one end of the rotating shaft (30). A drive gear (29) is fixedly installed on the other end of the rotating shaft (30).

2. The nano-grinding mill for processing suspensions according to claim 1, characterized in that: A bracket (11) is fixedly installed on one side of the upper middle part of the fixed base (1), and the grinding cylinder (12) is fixedly installed on the upper end of the bracket (11).

3. The nano-sand mill for processing suspensions according to claim 2, characterized in that: A fixing frame (17) is fixedly installed on the other side of the upper middle part of the fixing base (1). The motor (18) is fixedly installed in the middle of the upper end of the fixing frame (17). The output end of the motor (18) is located in the middle of the grinding cylinder (12). Multiple grinding discs (19) are evenly fixedly installed on the outer side of the middle part of the grinding cylinder (12).

4. The nano-grinding mill for processing suspensions according to claim 2, characterized in that: The upper end of the fixed base (1) is fixedly installed with a hopper (13), and the lower end of the hopper (13) is connected to a connecting pipe (15).

5. A nano-grinding mill for processing suspensions according to claim 4, characterized in that: A feed pump (14) is fixedly installed on one side of the hopper (13). The input end of the connecting pipe (15) is connected to one end of the connecting pipe (15) and fixedly connected to the output end of the connecting pipe (15). A feeding pipe (16) is connected to one end of the feeding pipe (16) and connected to the grinding cylinder (12).

6. The nano-sand mill for processing suspensions according to claim 1, characterized in that: The middle part of the grinding cylinder (12) is filled with a plurality of grinding beads, a grinding zone is formed at one end of the filter plate (26) and the grinding cylinder (12), and a discharge zone is formed between the filter plate (26) and the cover plate (23).

7. A nano-grinding mill for processing suspensions according to claim 6, characterized in that: The two retaining rings (28) are located on both sides of the notch (22), one side of the middle part of the filter plate (26) abuts against the limiting ring (20), the outer side of the middle part of the filter plate (26) abuts against the inner wall of the rotating groove (21), the toothed ring (27) corresponds to the notch (22), the drive gear (29) meshes with the toothed ring (27) through the notch (22), and one end of the two fixing plates (24) is fixedly connected to the surface of the grinding cylinder (12) by screws.

8. A nano-grinding mill for processing suspensions according to claim 7, characterized in that: Multiple arc-shaped rotating plates (36) are evenly fixedly installed around one side of the middle part of the cover plate (23). The multiple arc-shaped rotating plates (36) are respectively rotated and locked in the middle of the limiting rotating groove (35). A collar two (32) is fixedly installed on the outer surface of one side of the output end of the motor (18). A transmission belt (33) is connected between the collar two (32) and the collar one (31).

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