A hydrophobic aerogel surface hydrophilic modification dispersion device
By using a servo motor-driven intermittent rotation and hydraulic adjustment design, the problems of uneven stirring and mixing dead zones in traditional hydrophobic aerogel dispersion equipment are solved, achieving uniform dispersion and rapid discharge of aerogel, thus improving the dispersion effect and ease of use of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGNA NEW MATERIAL CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-12
AI Technical Summary
Traditional hydrophobic aerogel dispersion equipment suffers from uneven mixing, poor dispersion and emulsification effects, limited range of action of the stirrer and mixing dead zones, making it difficult for aerogel particles to be evenly dispersed and to fully contact with the modifying reagents.
The dispersion tank, driven by a servo motor, rotates intermittently. Combined with the dispersing blades and rolling motion, and with the hydraulic telescopic cylinder adjusting the angle of the dispersion tank, uniform dispersion and rapid discharge of aerogel are achieved.
It improves the dispersion effect of aerogel, avoids dead zones in stirring and material adhesion, and enhances the practicality and convenience of the equipment.
Smart Images
Figure CN224345915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of aerogel dispersion equipment, specifically a dispersion equipment for hydrophilic modification of hydrophobic aerogel surfaces. Background Technology
[0002] Aerogels, as highly promising nanoscale porous solid materials, exhibit broad application prospects in numerous fields due to their extremely low density, extremely high porosity, and excellent thermal insulation properties. In particular, silica aerogels, currently the only commercially available type of aerogel, have been widely used in high-end fields such as military, aerospace, and petrochemical industries, as well as in civilian fields that have gradually expanded in recent years, such as thermal insulation coatings, thermal insulation mortars, fire-retardant coatings, and water-based dispersants.
[0003] Aerogel dispersion equipment is broadly classified as a type of mixer. Because high-speed mixers can create strong turbulence in localized areas, they typically have a strong dispersing and emulsifying effect on materials; therefore, these high-speed mixers are also called dispersers. A gel is a sol or solution in which colloidal particles or polymers connect to each other under certain conditions, forming a spatial network structure. The voids in this structure are filled with a liquid (or gas in dry gels, which are also called aerogels). This special dispersion system is called a gel.
[0004] Traditional hydrophobic aerogel dispersion equipment uses simple stirring. The gel is a sol or colloidal particle or polymer in the solution, which is not stirred evenly, resulting in poor dispersion and emulsification. During the stirring process, the shear force and turbulence intensity generated by the stirrer are limited, which is difficult to effectively overcome the agglomeration force between aerogel particles, resulting in the inability to achieve uniform dispersion of colloidal particles or polymers in the solution. At the same time, the effective range of the stirrer is limited, and the degree of material mixing in different areas of the container is uneven. The mixing effect is relatively better in the area near the stirrer, while the corners far from the stirrer are prone to forming mixing dead zones, making it difficult for some aerogel particles to fully contact the modifying reagent. Utility Model Content
[0005] The purpose of this invention is to provide a hydrophilic modification and dispersion device for hydrophobic aerogel surfaces, solving the following technical problems: Traditional hydrophobic aerogel dispersion devices use simple stirring, resulting in uneven stirring of colloidal particles or polymers in the solution, leading to poor dispersion and emulsification effects. During stirring, the shear force and turbulence intensity generated by the stirrer are limited, making it difficult to effectively overcome the agglomeration force between aerogel particles, resulting in the inability to achieve uniform dispersion of colloidal particles or polymers in the solution. At the same time, the effective range of the stirrer is limited, and the degree of material mixing in different areas of the container is uneven. The mixing effect is relatively better in areas close to the stirrer, while corners far from the stirrer are prone to forming mixing dead zones, making it difficult for some aerogel particles to fully contact the modifying reagent.
[0006] The purpose of this utility model can be achieved through the following technical solution: a hydrophobic aerogel surface hydrophilic modification dispersion device, including a base, a U-shaped frame rotatably arranged on the upper end of the base, and a dispersion component arranged between the inner sidewalls of the U-shaped frame;
[0007] The dispersion assembly includes a dispersion tank rotatably disposed between the inner walls of a U-shaped frame. A servo motor is fixedly mounted at one end of the inner wall of the U-shaped frame. A rotating shaft is fixedly mounted inside the dispersion tank on the output shaft of the servo motor. Several dispersion blades are mounted on the surface of the rotating shaft. A rotating rod is rotatably connected to the upper end of the inner wall of the U-shaped frame via a bearing. A drive wheel is fixedly mounted on the surface of the output shaft of the servo motor. A transmission wheel is fixedly mounted on the outer surface of the rotating rod. A conveyor belt is disposed between the drive wheel and the transmission wheel. A partially driven gear is fixedly mounted on the surface of the middle part of the rotating rod. A driven gear is disposed on the outer wall surface of the middle part of the dispersion tank. This assembly is used to uniformly disperse the hydrophobic aerogel and perform surface modification treatment.
[0008] As a further embodiment of this utility model: the incomplete driving gear meshes with the driven gear to achieve intermittent rotation of the dispersion tank.
[0009] As a further embodiment of this utility model: multiple support rods are fixedly arranged between the inner sidewalls of the U-shaped frame, and fixed sleeves are fixedly arranged on the outer surfaces of the multiple support rods. The same ring is fixedly arranged on the inner side of the multiple fixed sleeves, and the ring is tumblingly connected to the dispersion tank.
[0010] As a further embodiment of this utility model: an annular groove is provided inside the ring, and multiple balls are rolled inside the annular groove. The outer sides of the multiple balls contact and engage with a limiting ring, and the inner sidewall of the limiting ring is fixedly connected to the outer sidewall of the dispersion tank.
[0011] As a further embodiment of this utility model: a rotating unit is provided on one side of the upper end of the base. The rotating unit includes an arc-shaped plate symmetrically fixedly disposed on one side of the upper end of the base. An arc-shaped groove is provided in the middle of the arc-shaped plate. A guide groove is provided inside the arc-shaped groove. A roller is rotatably disposed inside the guide groove. A shaft is rotatably disposed at the central axis of the roller. One side of each of the two shafts is fixedly connected to the side of the U-shaped frame.
[0012] As a further embodiment of this utility model: a hydraulic telescopic cylinder is obliquely arranged inside the base, and the end of the piston rod of the hydraulic telescopic cylinder is connected to the bottom of the U-shaped frame.
[0013] As a further embodiment of this utility model: the upper end and one side of the lower end of the dispersion tank are provided with a feed cover and a discharge cover with a seal.
[0014] As a further aspect of this utility model: the rotation arc of the U-shaped frame matches the arc of the arc groove.
[0015] The beneficial effects of this utility model are:
[0016] (1) This utility model uses a servo motor to drive the drive wheel to rotate, the drive wheel drives the transmission wheel to rotate through the conveyor belt, and the rotating rod drives the driven gear that meshes with the incomplete drive gear to rotate, thereby realizing the intermittent rotation of the dispersion tank. The servo motor drives several dispersion blades connected to the rotating shaft to rotate and stir the hydrophobic aerogel inside the dispersion tank. The intermittent rotation of the dispersion tank can make the aerogel roll and free fall. Combined with the continuous rotation of the dispersion blades, the dispersion effect of the aerogel is ensured, and the practicality of the device is improved.
[0017] (2) This utility model uses a hydraulic telescopic cylinder to drive the U-shaped frame to slide in the arc-shaped groove. At the same time, the U-shaped frame can rotate around one end to adjust the tilt angle. During this process, the rollers roll in the guide groove, which not only effectively limits the lateral movement of the U-shaped frame, but also significantly reduces the rotational resistance by converting sliding friction into rolling friction. After the U-shaped frame is lifted, the hydrophobic aerogel in the dispersion tank can be quickly discharged from the discharge cover side. This design can prevent the aerogel from adhering to the inner wall of the dispersion tank due to drying, effectively solving the problems of difficult discharge and inconvenient post-processing in traditional structures, thereby improving the convenience of subsequent use of the equipment.
[0018] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0019] The present invention will be further described below with reference to the accompanying drawings.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the dispersion component of this utility model;
[0022] Figure 3 This is a schematic diagram of the internal structure of the ring of this utility model;
[0023] Figure 4 This is a cross-sectional structural schematic diagram of the present invention;
[0024] Figure 5 This is a schematic diagram of the internal structure of the arc-shaped plate of this utility model.
[0025] In the diagram: 1. Base; 2. U-shaped frame; 3. Support rod; 4. Dispersion assembly; 41. Fixing sleeve; 42. Ring; 43. Dispersion tank; 44. Servo motor; 45. Rotating shaft; 46. Dispersion blades; 47. Rotating rod; 48. Drive wheel; 49. Transmission wheel; 410. Conveyor belt; 411. Incomplete drive gear; 412. Circular ring; 413. Driven gear; 414. Annular groove; 415. Ball bearing; 416. Limiting ring; 51. Feed cover; 52. Discharge cover; 6. Rotating unit; 61. Arc plate; 62. Arc groove; 63. Guide groove; 64. Roller; 65. Shaft; 66. Hydraulic telescopic cylinder. Detailed Implementation
[0026] The embodiments of this utility model are described in detail below. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0027] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0028] In the field of aerogel dispersion equipment technology, hydrophobic aerogel surface hydrophilic modification dispersion equipment is prone to problems such as uneven raw material mixing and dead zones in actual use. These problems significantly affect equipment performance and product quality. This utility model provides a hydrophobic aerogel surface hydrophilic modification dispersion equipment that addresses the technical bottleneck of uneven mixing in traditional dispersion equipment by achieving uniform mixing through a series of innovative designs. The specific implementation method is as follows:
[0029] Example 1: As Figures 1-3As shown, a hydrophobic aerogel surface hydrophilic modification dispersion device includes a base 1. A U-shaped frame 2 is rotatably mounted on the upper end of the base 1. The U-shaped frame 2 can rotate around one end of the base 1, which facilitates quick and flexible adjustment of the angle of the dispersion tank 43 at the upper end of the U-shaped frame 2. This allows for the rapid discharge of the hydrophobic aerogel inside the dispersion tank 43, preventing the aerogel from drying and adhering to the inner wall of the dispersion tank 43, which is difficult to remove. Multiple support rods 3 are fixedly mounted between the inner side walls of the U-shaped frame 2. In this embodiment, there are four support rods 3. A dispersion component 4 is mounted in the middle of the multiple support rods 3. The dispersion component 4 is used to stir and disperse the hydrophobic aerogel to improve the quality of the product.
[0030] The dispersion assembly 4 includes fixed sleeves 41 symmetrically fixed on the outer surface of the support rod 3. A ring 42 is fixedly mounted inside the multiple fixed sleeves 41. A dispersion tank 43 is rolled inside the ring 42. A servo motor 44 is fixedly mounted at one end of the inner wall of the U-shaped frame 2. The output shaft of the servo motor 44 passes through the side wall of the dispersion tank 43, and a rotating shaft 45 is fixedly mounted inside it. The output shaft of the servo motor 44 is rotatably connected to the side wall of the dispersion tank 43. The end of the rotating shaft 45 away from the servo motor 44 is rotatably connected to the side wall of the dispersion tank 43. Several dispersion blades 46 are mounted on the surface of the rotating shaft 45. The dispersion blades 46 rotate under the drive of the servo motor 44, stirring, mixing, and dispersing the hydrophobic aerogel inside the dispersion tank 43. A rotating rod 47 is rotatably connected to the upper end of the inner wall of the U-shaped frame 2 via a bearing. The surface of the output shaft of the servo motor 44 is on the surface of the dispersion tank 43. An active wheel 48 is fixedly installed on the outer side, and a transmission wheel 49 is fixedly installed on the outer surface of the rotating rod 47 above the active wheel 48. A conveyor belt 410 is installed between the active wheel 48 and the transmission wheel 49. An incomplete active gear 411 is fixedly installed on the surface of the middle part of the rotating rod 47. A circular ring 412 is fixedly installed on the surface of the middle part of the dispersion tank 43. A driven gear 413 is fixedly installed on the outer side of the circular ring 412. The driven gear 413 meshes with the incomplete active gear 411. The driven gear 413 and the incomplete active gear 411 are in clearance fit, realizing the intermittent rotation of the dispersion tank 43. This causes the hydrophobic aerogel inside the dispersion tank 43 to be lifted under the drive of the dispersion blades 46, and at the same time, it falls freely under the action of gravity. The intermittent rotation of the dispersion tank 43 makes the hydrophobic aerogel fully mixed, breaks up the aerogel agglomerates, and makes it uniformly dispersed in the polar solvent in the form of single particles or small aggregates.
[0031] like Figure 3 As shown, an annular groove 414 is provided inside the annular ring 42, and multiple balls 415 are rolled inside the annular groove 414. The outer sides of the multiple balls 415 contact and engage with a limiting ring 416, and the inner sidewall of the limiting ring 416 is fixedly connected to the outer sidewall of the dispersion tank 43.
[0032] By using the ball bearing 415, the friction between the dispersion tank 43 and the ring 42 is reduced when the tank rotates, thus reducing energy loss.
[0033] like Figure 2 As shown. The upper and lower ends of the dispersion tank 43 are equipped with a sealed feed cover 51 and a discharge cover 52. The feed cover 51 and the discharge cover 52 can be quickly opened or closed during feeding and rotation. After feeding, the feed cover 51 and the discharge cover 52 can be closed to prevent the raw materials from spilling out due to the rotation of the dispersion tank 43. After stirring and dispersing, the discharge cover 52 at the bottom of the dispersion tank 43 is placed directly below. Opening the discharge cover 52 can quickly discharge the hydrophobic aerogel inside the dispersion tank 43.
[0034] In summary, the hydrophobic aerogel surface hydrophilic modification dispersion device, during use, involves adding the hydrophobic aerogel into the dispersion tank 43 through the feed cover 51, closing the feed cover 51, and starting the servo motor 44. The servo motor 44 drives the dispersion blades 46 via the rotating shaft 45 to stir and disperse the hydrophobic aerogel inside the dispersion tank 43. Simultaneously, the servo motor 44 drives the transmission wheel 49 to rotate via the drive wheel 48 and the conveyor belt 410. The transmission wheel 49 drives the dispersion tank 43 to rotate intermittently via the rotating rod 47 and the incomplete drive gear 411, ensuring thorough mixing of the hydrophobic aerogel, breaking down aerogel agglomerates, and uniformly dispersing them in the polar solvent as single particles or small aggregates. The intermittent rotation of the dispersion tank 43 allows the aerogel to undergo rolling and free-fall motion, which, combined with the continuous rotation of the dispersion blades 46, ensures the dispersion effect of the aerogel and improves the practicality of the device.
[0035] Example 2: Based on Example 1, as follows Figure 4 , Figure 5 As shown, a rotating unit 6 is provided on one side of the upper end of the base 1. The hydrophobic antigel inside the dispersion tank 43 is difficult to completely remove after dispersion and tends to adhere to the inner wall of the dispersion tank 43. This not only causes material waste but may also affect the dispersion quality of subsequent batches. Therefore, the angle of the dispersion tank 43 is adjusted by rotating unit 6 so that the aerogel can slowly slide out of the discharge port from the inner wall.
[0036] The rotating unit 6 includes an arc-shaped plate 61 symmetrically fixed on one side of the upper end of the base 1. An arc-shaped groove 62 is opened in the middle of the arc-shaped plate 61. A guide groove 63 is opened inside the arc-shaped groove 62. A roller 64 is rolled inside the guide groove 63. A shaft 65 is rotatably installed at the central axis of the roller 64. One side of each shaft 65 is fixedly connected to the side of the U-shaped frame 2. The arc of the arc-shaped plate 61 is centered on the bottom end of the U-shaped frame 2 with the diameter of the bottom end of the U-shaped frame 2 and the upper end of the base 1 as the center, so that the U-shaped frame 2 can rotate around the circumference of the upper end of the base 1. The end of the U-shaped frame 2 away from the arc-shaped plate 61 is rotatably connected to the base 1. A hydraulic telescopic cylinder 66 is obliquely installed inside the base 1. The end of the piston rod of the hydraulic telescopic cylinder 66 is connected to the bottom of the U-shaped frame 2.
[0037] The working principle of the rotating unit 6 is based on the coordinated operation of mechanical transmission and hydraulic drive. The arc plate 61 provides an arc-shaped motion track for the U-shaped frame 2 through a symmetrical layout. The guide groove 63 in the arc groove 62 restricts the movement direction of the roller 64, ensuring that the U-shaped frame 2 rotates smoothly along the predetermined arc trajectory. The cooperation between the roller 64 and the shaft 65 realizes rolling friction instead of sliding friction, reducing rotational resistance.
[0038] When the hydraulic telescopic cylinder 66 is activated, the extension and retraction of the piston rod becomes the direct power source for the rotation of the U-shaped frame 2. As the piston rod of the hydraulic telescopic cylinder 66 extends or retracts, the U-shaped frame 2 rotates in a circle around a fixed point on one side of the upper end of the base 1. The arc design of the arc plate 61 (with the bottom length of the U-shaped frame 2 as the diameter and one side of the upper end of the base 1 as the center) ensures the accuracy of the motion trajectory. This structural design not only achieves stable rotation of the dispersion tank 43, but also provides sufficient torque and adjustment precision through hydraulic drive to meet the needs of angle adjustment of the dispersion tank 43 under different working conditions. It can also remove the aerogel inside the dispersion tank 43, preventing it from adhering to the inner wall of the dispersion tank 43.
[0039] After the hydrophobic aerogel is stirred and dispersed, the U-shaped frame 2 is slowly raised by the hydraulic telescopic cylinder 66. The U-shaped frame 2 moves obliquely upward along the arc groove 62 in the middle of the arc plate 61, so that the dispersion tank 43 is tilted. By adjusting the angle of the dispersion tank 43, the aerogel inside the dispersion tank 43 can be discharged to prevent it from adhering to the inner wall of the dispersion tank 43.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A hydrophobic aerogel surface hydrophilic modification dispersion device, comprising a base (1), characterized in that, A U-shaped frame (2) is rotatably provided on the upper end of the base (1), and a dispersing component (4) is provided between the inner sidewalls of the U-shaped frame (2). The dispersion assembly (4) includes a dispersion tank (43) rotatably disposed between the inner walls of a U-shaped frame (2). A servo motor (44) is fixedly disposed at one end of the inner wall of the U-shaped frame (2). A rotating shaft (45) is fixedly disposed inside the dispersion tank (43) on the output shaft of the servo motor (44). Several dispersion blades (46) are mounted on the surface of the rotating shaft (45). A rotating rod (47) is rotatably connected to the upper end of the inner wall of the U-shaped frame (2) via a bearing. A drive wheel (48) is fixedly disposed on the surface of the output shaft of the servo motor (44). A transmission wheel (49) is fixedly disposed on the outer surface of the rotating rod (47). A conveyor belt (410) is disposed between the drive wheel (48) and the transmission wheel (49). An incomplete drive gear (411) is fixedly disposed on the surface of the middle part of the rotating rod (47). A driven gear (413) is disposed on the outer wall surface of the middle part of the dispersion tank (43). This assembly is used to uniformly disperse the hydrophobic aerogel and perform surface modification treatment.
2. The hydrophobic aerogel surface hydrophilic modification and dispersion device according to claim 1, characterized in that, The incomplete driving gear (411) meshes with the driven gear (413) to achieve intermittent rotation of the dispersion tank (43).
3. The hydrophobic aerogel surface hydrophilic modification dispersion device according to claim 1, characterized in that, Multiple support rods (3) are fixedly arranged between the inner walls of the U-shaped frame (2). Fixed sleeves (41) are fixedly arranged on the outer surfaces of the multiple support rods (3). The same ring (42) is fixedly arranged on the inner side of the multiple fixed sleeves (41). The ring (42) is tumbledly connected to the dispersion tank (43).
4. The hydrophilic modification and dispersion device for hydrophobic aerogel surface according to claim 3, characterized in that, The annular groove (414) is provided inside the ring (42), and multiple balls (415) are rolled inside the annular groove (414). The outer sides of the multiple balls (415) contact and engage with a limiting ring (416), and the inner sidewall of the limiting ring (416) is fixedly connected to the outer sidewall of the dispersion tank (43).
5. The hydrophobic aerogel surface hydrophilic modification dispersion device according to claim 1, characterized in that, A rotating unit (6) is provided on one side of the upper end of the base (1). The rotating unit (6) includes an arc plate (61) symmetrically fixed on one side of the upper end of the base (1). An arc groove (62) is provided in the middle of the arc plate (61). A guide groove (63) is provided inside the arc groove (62). A roller (64) is rolled inside the guide groove (63). A shaft (65) is rotatably provided at the central axis of the roller (64). One side of each of the two shafts (65) is fixedly connected to the side of the U-shaped frame (2).
6. The hydrophobic aerogel surface hydrophilic modification and dispersion device according to claim 1, characterized in that, A hydraulic telescopic cylinder (66) is obliquely arranged inside the base (1), and the end of the piston rod of the hydraulic telescopic cylinder (66) is connected to the bottom of the U-shaped frame (2).
7. The hydrophilic modification and dispersion device for hydrophobic aerogel surface according to claim 1, characterized in that, The dispersion tank (43) is provided with a sealed feed cover (51) and a discharge cover (52) on one side of the upper and lower ends.
8. The hydrophobic aerogel surface hydrophilic modification and dispersion device according to claim 5, characterized in that, The rotation arc of the U-shaped frame (2) matches the arc of the arc groove (62).