A super-active zinc oxide grinding device

Abstract

This utility model discloses a high-activity zinc oxide grinding device, comprising a sealed tank. A servo motor is installed at the top center of the sealed tank, and a central shaft is installed at the bottom of the servo motor. The bottom end of the central shaft is connected and fixed to the center of the top surface of a fine grinding plate. A grinding hemisphere is fixed on the bottom surface of the fine grinding plate. A driving gear is fixed in the middle of the central shaft, and the driving gear meshes with a driven gear on one side. The driven gear is fixed to the bottom end of a side shaft. The top end of the side shaft is rotatably connected to the inner wall of a fixed cylinder through an inner bearing. The top end of the fixed cylinder is connected and fixed to the inner top surface of the sealed tank. This high-activity zinc oxide grinding device adopts a novel structural design and uses a staged reverse grinding method to efficiently grind high-activity zinc oxide, shortening the grinding time and improving the grinding accuracy. Simultaneously, with temperature regulation and inert gas protection, the quality of the produced high-activity zinc oxide is improved.

Description

Technical Field

[0001] This utility model relates to the field of chemical technology, specifically to a super-active zinc oxide grinding device. Background Technology

[0002] The production and application of highly active zinc oxide and its derivatives are mainly concentrated in the chemical industry. Its downstream applications cover multiple industries such as rubber, ceramics, coatings, and pharmaceuticals. It is used in the manufacture of high-tech products such as gas sensors, phosphors, and varistors, as well as ultraviolet shielding materials and image recording materials.

[0003] Existing grinding mechanisms generally employ traditional single-stage rotary grinding, which not only results in long overall grinding times but also low grinding precision. This leads to the production of highly active zinc oxide with a small specific surface area, few surface active sites, and mediocre photocatalytic performance. Therefore, a highly active zinc oxide grinding device needs to be designed to address these issues. Summary of the Invention

[0004] The purpose of this invention is to provide a super-active zinc oxide grinding device to solve the problems mentioned in the background art, which are that the existing grinding mechanism adopts traditional single-stage rotary grinding, which not only has a long overall grinding time, but also low grinding precision, resulting in a small specific surface area, a small number of surface active sites, and general photocatalytic performance of the produced super-active zinc oxide.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a super-active zinc oxide grinding device, comprising a sealed tank, a servo motor installed at the top center of the sealed tank, a central shaft installed at the bottom of the servo motor, the bottom end of the central shaft being fixedly connected to the center of the top surface of a fine grinding plate, a grinding hemisphere fixedly fixed on the bottom surface of the fine grinding plate, a drive gear fixedly fixed at the center of the central shaft, the drive gear meshing with a driven gear on one side, the driven gear being fixed at the bottom end of a side shaft, the top end of the side shaft being rotatably connected to the inner side wall of a fixed cylinder via an inner bearing, the top end of the fixed cylinder being fixedly connected to the inner top surface of the sealed tank, the outer side wall of the fixed cylinder being rotatably connected to the top of the inner wall of a coarse grinding cylinder via an outer bearing, the other side of the driven gear meshing with an internal toothed convexity, the internal toothed convexity being fixedly installed in the middle of the inner wall of the coarse grinding cylinder, the bottom end of the coarse grinding cylinder being fitted with the inner wall of a mating groove, the mating groove being opened at the edge of the top surface of the fine grinding plate, a feed pipe fixedly fixed to the top of the side wall of the sealed tank, and a discharge pipe installed at the bottom end of the sealed tank.

[0006] Preferably, the fine grinding plate is hemispherical, and grinding hemispheres are densely arranged on the bottom hemispherical surface of the fine grinding plate. The distance between the end of the grinding hemisphere and the bottom of the inner wall of the sealed tank is greater than the distance from the outer wall of the coarse grinding cylinder to the middle of the inner wall of the sealed tank.

[0007] Preferably, the horizontal centers of the driving gear, driven gear, and internal tooth convexity are on the same horizontal plane as the horizontal center of the coarse grinding cylinder, and the driven gear is symmetrically distributed about the center of the driving gear.

[0008] Preferably, the inner side of the bottom end of the coarse grinding cylinder and the inner wall of the mating groove are both provided with inclined surfaces, and a partition ring is horizontally fixedly installed on the inner wall of the coarse grinding cylinder at the top of the mating groove.

[0009] Preferably, the feed pipe is inclined and symmetrically distributed about the center of the sealed tank.

[0010] Preferably, an air inlet pipe and an air extraction pipe are fixedly installed on both sides of the top of the sealed container, and an insulation shell is fixedly installed on the middle and bottom outer sides of the sealed container, with a heating pipe installed inside the insulation shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are: the super-active zinc oxide grinding device adopts a novel structural design and performs high-efficiency grinding of super-active zinc oxide through a graded reverse grinding method, which shortens the grinding time and improves the grinding accuracy. At the same time, with the help of temperature regulation and inert gas protection, the quality of the produced super-active zinc oxide is improved.

[0012] 1. By coordinating the central shaft, driving gear, driven gear, side shaft, inner bearing, fixed cylinder, and outer bearing, the coarse grinding cylinder and fine grinding plate are rotated in opposite directions to perform graded reverse grinding of the super-active zinc oxide raw material, shortening the grinding time and improving the grinding accuracy;

[0013] 2. By using an air inlet pipe, an air extraction pipe, a feed pipe, a discharge pipe, an insulation shell, and a heating pipe, the temperature of the ultra-active zinc oxide raw material during grinding is adjusted. Combined with the input of inert gas for protection, the quality of the produced ultra-active zinc oxide is improved. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the present invention;

[0015] Figure 2 This is a frontal cross-sectional view of the present invention.

[0016] Figure 3 for Figure 2 AA section diagram;

[0017] Figure 4 This is a bottom view of the precision grinding plate and grinding hemisphere of this utility model.

[0018] In the diagram: 1. Sealed tank; 2. Servo motor; 3. Central shaft; 4. Fine grinding plate; 5. Grinding hemisphere; 6. Drive gear; 7. Driven gear; 8. Side shaft; 9. Inner bearing; 10. Fixed cylinder; 11. Outer bearing; 12. Coarse grinding cylinder; 13. Internal tooth convexity; 14. Separator ring; 15. Mating groove; 16. Air inlet pipe; 17. Air extraction pipe; 18. Feed pipe; 19. Discharge pipe; 20. Insulated outer shell; 21. Heating tube. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a super-active zinc oxide grinding device, comprising a sealed tank 1, a servo motor 2, a central shaft 3, a fine grinding plate 4, a grinding hemisphere 5, a driving gear 6, a driven gear 7, a side shaft 8, an inner bearing 9, a fixed cylinder 10, an outer bearing 11, a coarse grinding cylinder 12, an internal toothed protrusion 13, a separator ring 14, a mating groove 15, an air inlet pipe 16, an air extraction pipe 17, a feed pipe 18, a discharge pipe 19, a heat-insulating shell 20, and a heating pipe 21. The servo motor 2 is installed at the top center of the sealed tank 1, and the central shaft 3 is installed at the bottom of the servo motor 2. The bottom end of the central shaft 3 is connected and fixed to the center of the top surface of the fine grinding plate 4. The grinding hemisphere 5 is fixed on the bottom surface of the fine grinding plate 4, and the central shaft 3 is fixed at the center. There is a driving gear 6, which meshes with a driven gear 7 on one side. The driven gear 7 is fixed to the bottom of the side shaft 8. The top of the side shaft 8 is rotatably connected to the inner wall of the fixed cylinder 10 through an inner bearing 9. The top of the fixed cylinder 10 is connected and fixed to the inner top surface of the sealed tank 1. The outer wall of the fixed cylinder 10 is rotatably connected to the top of the inner wall of the coarse grinding cylinder 12 through an outer bearing 11. The other side of the driven gear 7 meshes with an inner tooth protrusion 13. The inner tooth protrusion 13 is fixedly installed in the middle of the inner wall of the coarse grinding cylinder 12. The bottom of the coarse grinding cylinder 12 is in contact with the inner wall of the mating groove 15. The mating groove 15 is opened at the edge of the top surface of the fine grinding plate 4. A feed pipe 18 is fixed to the top of the side wall of the sealed tank 1, and a discharge pipe 19 is installed at the bottom of the sealed tank 1.

[0021] In this example, the fine grinding plate 4 is set as a hemispherical shape, and grinding hemispheres 5 are densely arranged on the bottom hemispherical surface of the fine grinding plate 4. The distance between the end of the grinding hemisphere 5 and the bottom of the inner wall of the sealed tank 1 is greater than the distance from the outer wall of the coarse grinding cylinder 12 to the middle of the inner wall of the sealed tank 1. The above structural design can perform finer grinding of super-active zinc oxide during rotation, thereby improving grinding efficiency.

[0022] The horizontal centers of the driving gear 6, driven gear 7, and internal tooth cam 13 are on the same horizontal plane as the horizontal center of the coarse grinding cylinder 12. The driven gear 7 is symmetrically distributed about the center of the driving gear 6. The above structural design enables the driving gear 6 to drive the coarse grinding cylinder 12 stably through the transmission of the driven gear 7 and internal tooth cam 13 when rotating.

[0023] The bottom inner side of the coarse grinding cylinder 12 and the inner wall of the mating groove 15 are both provided with inclined surfaces. A partition ring 14 is horizontally fixed on the inner wall of the coarse grinding cylinder 12 at the top of the mating groove 15. The above structural design can prevent grinding powder from entering the inner side of the coarse grinding cylinder 12 and accumulating.

[0024] The feed pipe 18 is inclined and symmetrically distributed about the center of the sealed tank 1. The above structural design can efficiently and smoothly add raw materials.

[0025] An air inlet pipe 16 and an air extraction pipe 17 are fixedly installed on both sides of the top of the sealed tank 1. An insulation shell 20 is fixedly installed on the middle and bottom outer sides of the sealed tank 1. A heating tube 21 is installed inside the insulation shell 20. The above structural design can facilitate the filling of inert gas and temperature control.

[0026] Working principle: During production, start first. Figure 2 The air extraction pipe 17 in the middle extracts the air from the sealed tank 1 and introduces inert gas through the air inlet pipe 16. Then, the solenoid valve on the feed pipe 18 is opened to quantitatively feed the super-active zinc oxide raw material into the space between the inner side of the sealed tank 1 and the outer side of the coarse grinding cylinder 12. Then, the solenoid valve on the feed pipe 18 is closed.

[0027] The servo motor 2 is started, and the servo motor 2 drives the fine grinding plate 4 and the drive gear 6 to rotate stably in one direction through the central shaft 3. The drive gear 6 drives the driven gear 7 to rotate in the opposite direction. The driven gear 7 drives the coarse grinding cylinder 12 to rotate in the same direction but at a slower speed through the internal tooth cam 13. That is, the coarse grinding cylinder 12 and the fine grinding plate 4 rotate in opposite directions. The coarse grinding cylinder 12 slowly and stably grinds the large-diameter super-active zinc oxide raw material until the particle size of the super-active zinc oxide raw material reaches a certain standard. It falls downward into the space between the bottom inner side of the sealed tank 1 and the bottom surface of the fine grinding plate 4. The fine grinding plate 4, with the grinding hemisphere 5, rotates in the opposite direction at a faster speed to finely grind the coarsely ground super-active zinc oxide raw material. During grinding, the temperature of the super-active zinc oxide raw material is controlled by the heating tube 21 to improve the grinding effect. Finally, the discharge pipe 19 is opened to discharge the super-active zinc oxide powder. This is the working principle of the super-active zinc oxide grinding device.

[0028] 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An ultra-active zinc oxide grinding device comprising a sealed tank body (1) characterised in that: A servo motor (2) is installed at the top center of the sealed tank (1), and a central shaft (3) is installed at the bottom of the servo motor (2). The bottom end of the central shaft (3) is connected and fixed to the center of the top surface of the fine grinding plate (4). A grinding hemisphere (5) is fixed on the bottom surface of the fine grinding plate (4). A drive gear (6) is fixed in the middle of the central shaft (3). The drive gear (6) meshes with a driven gear (7) on one side. The driven gear (7) is fixed at the bottom end of the side shaft (8). The top end of the side shaft (8) is rotatably connected to the inner wall of the fixed cylinder (10) through an inner bearing (9). The top end of the fixed cylinder (10) The inner top surface of the sealed tank (1) is connected and fixed. The outer wall of the fixed cylinder (10) is rotatably connected to the top of the inner wall of the coarse grinding cylinder (12) through the outer bearing (11). The other side of the driven gear (7) is meshed with the internal tooth protrusion (13). The internal tooth protrusion (13) is fixedly installed in the middle of the inner wall of the coarse grinding cylinder (12). The bottom end of the coarse grinding cylinder (12) is in contact with the inner wall of the mating groove (15). The mating groove (15) is opened on the edge of the top surface of the fine grinding plate (4). The top of the side wall of the sealed tank (1) is fixed with a feed pipe (18). The bottom end of the sealed tank (1) is installed with a discharge pipe (19).

2. The super-activated zinc oxide grinding device according to claim 1, wherein: The fine grinding plate (4) is set in a hemispherical shape, and grinding hemispheres (5) are densely arranged on the bottom hemispherical surface of the fine grinding plate (4). The distance between the end of the grinding hemisphere (5) and the bottom of the inner wall of the sealed tank (1) is greater than the distance from the outer wall of the coarse grinding cylinder (12) to the middle of the inner wall of the sealed tank (1).

3. The super-activated zinc oxide grinding device according to claim 1, wherein: The horizontal centers of the driving gear (6), driven gear (7) and internal tooth cam (13) are on the same horizontal plane as the horizontal center of the coarse grinding cylinder (12), and the driven gear (7) is symmetrically distributed about the center of the driving gear (6).

4. The super-activated zinc oxide grinding device of claim 1, wherein: The bottom inner side of the coarse grinding cylinder (12) and the inner wall of the mating groove (15) are both provided with inclined surfaces, and a partition ring (14) is horizontally fixedly installed on the inner wall of the coarse grinding cylinder (12) at the top of the mating groove (15).

5. The super-activated zinc oxide grinding device of claim 1, wherein: The feed pipe (18) is inclined and is symmetrically distributed about the center of the sealed tank (1).

6. The super-activated zinc oxide grinding device of claim 1, wherein: An air inlet pipe (16) and an air extraction pipe (17) are fixedly installed on both sides of the top of the sealed tank (1). An insulation shell (20) is fixedly installed on the middle and bottom outer sides of the sealed tank (1). A heating pipe (21) is installed inside the insulation shell (20).

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