Nano aluminum oxide ceramic grinding device

Abstract

The utility model relates to the technical field of nanometer aluminum oxide production, in particular to a nanometer aluminum oxide ceramic grinding device which comprises a rack, a conical shell arranged in the rack, a lifting table arranged at the upper end of the shell, a driving mechanism arranged on the lifting table, and a driving shaft extending into the shell. A feeding pipe is arranged at the upper end of the shell, the lower end of the driving shaft is connected with a conical grinding block, the upper end of the grinding block is connected with a pre-grinding block, the pre-grinding block is in a big-end-up circular truncated cone shape, and a discharging valve is arranged at the lower end of the shell. The grinding device has the advantages that the granularity after grinding can be adjusted, and the grinding is uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of nano-alumina production, in particular to a nano-alumina ceramic grinding device. Background Art

[0002] The main raw material of nano-alumina ceramics is nano-alumina, which has two typical applications in the electronics industry. One is to make high-pressure sodium lamp light-emitting tubes, and the other is to use nano-alumina ceramic sensors. In the production process of nano-alumina ceramics, a grinding device is required to grind the raw materials to make powder. The existing grinding devices are generally not convenient for adjusting the particle size of the grinding, and have the disadvantage of uneven particle size. Therefore, it is particularly necessary to develop a nano-alumina ceramic grinding device that can adjust the particle size after grinding and grind evenly. Summary of the invention

[0003] The utility model aims to provide a nano-alumina ceramic grinding device, which has the advantages of being able to adjust the particle size after grinding and grinding evenly.

[0004] The technical solutions adopted are as follows:

[0005] A nano-alumina ceramic grinding device comprises a frame, a conical shell is arranged in the frame, a lifting platform is arranged at the upper end of the shell, the lifting platform is arranged at a driving mechanism, the driving mechanism is arranged at a driving shaft extending into the shell, a feeding pipe is arranged at the upper end of the shell, a conical grinding block is connected to the lower end of the driving shaft, a pre-grinding block is connected to the upper end of the grinding block, the pre-grinding block is in the shape of a truncated cone with a larger upper part and a smaller lower part, and a discharge valve is arranged at the lower end of the shell.

[0006] Preferably, the lifting platform is a high-precision ball screw lift.

[0007] Preferably, the upper end surface of the pre-grinding block is provided with a guide cone with a smaller diameter at the top and a larger diameter at the bottom.

[0008] Preferably, the upper end surface of the guide cone is evenly provided with a plurality of baffles extending radially along the guide shaft.

[0009] Preferably, a plurality of telescopic mechanisms are provided on the frame, each of the telescopic mechanisms is connected to a striking hammer, and each of the telescopic mechanisms extends in the radial direction of the shell.

[0010] Preferably, the lower end of the discharge valve is connected to a screw conveyor.

[0011] Compared with the prior art, the beneficial effects are:

[0012] 1. The utility model uses a feed pipe to put raw materials into the shell, and controls the height of the driving shaft through a lifting platform, so as to adjust the distance between the pre-grinding block and the grinding block and the inner wall of the shell. The raw materials enter between the pre-grinding block and the shell, and after being ground, they enter between the grinding block and the inner wall of the shell. The raw materials are ground by the grinding block and flow from the gap between the shell and the grinding block to the bottom and discharged from the discharge valve. The particle size after grinding is adjusted by adjusting the height of the driving shaft, and larger particles can flow from the gap between the shell and the grinding block to the bottom, and the particle size is uniform.

[0013] 2. The telescopic mechanism in the utility model controls each striking hammer to strike the shell, generating vibration, thereby avoiding unsmooth material feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the planar structure of a nano-alumina ceramic grinding device of the utility model.

[0015] Figure 2 This is a three-dimensional structural schematic diagram of a grinding block of a nano-alumina ceramic grinding device of the utility model.

[0016] In the figure: 1. frame, 2. shell, 3. lifting platform, 4. driving mechanism, 5. driving shaft, 6. feeding pipe, 7. dustproof end cover, 8. grinding block, 9. pre-grinding block, 10. guide cone, 11. baffle, 12. discharge valve, 13. screw conveyor, 14. telescopic mechanism, 15. striking hammer. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with specific embodiments. Figure 1 to Figure 2 As shown:

[0018] Embodiment 1: A nano-alumina ceramic grinding device comprises a frame 1, a conical shell 2 is arranged in the frame 1, the end of the shell 2 with a larger diameter is at the upper end, a lifting platform 3 is arranged at the upper end of the shell 2, the lifting platform 3 is provided with a driving mechanism 4, the driving mechanism 4 is provided with a driving shaft 5 extending into the shell 2, the driving shaft 5 is connected to the shell 2 by a rotary seal, the lifting platform 3 controls the lifting of the driving mechanism 4 to drive the lifting of the driving shaft 5,

[0019] The upper end of the housing 2 is provided with a feed pipe 6, and the upper end of the feed pipe 6 is provided with a dustproof end cover 7. The lower end of the drive shaft 5 is connected to a conical grinding block 8, and the grinding block 8 is coaxially fixedly connected to the drive shaft 5. The drive shaft 5 is raised and lowered to adjust the gap between the grinding block 8 and the inner wall of the housing 2. The upper end of the grinding block 8 is connected to a pre-grinding block 9, and the pre-grinding block 9 is in the shape of a truncated cone with a larger upper portion and a smaller lower portion.

[0020] The feed pipe 6 puts the raw material into the shell 2, and the height of the driving shaft 5 is controlled by the lifting platform 3, so as to adjust the distance between the pre-grinding block 9 and the grinding block 8 and the inner wall of the shell 2. The raw material enters between the pre-grinding block 9 and the shell 2, and after the raw material is ground, it enters between the grinding block 8 and the inner wall of the shell 2. The lower end of the shell 2 is provided with a discharge valve 12. The grinding block 8 grinds the raw material into fine powder and flows from the gap between the shell 2 and the grinding block 8 to the bottom and is discharged from the discharge valve 12.

[0021] Embodiment 2: A nano-alumina ceramic grinding device comprises a frame 1, a conical shell 2 is arranged in the frame 1, the end of the shell 2 with a larger diameter is at the upper end, a lifting platform 3 is arranged at the upper end of the shell 2, the lifting platform 3 is provided with a driving mechanism 4, the driving mechanism 4 is provided with a driving shaft 5 extending into the shell 2, the driving shaft 5 and the shell 2 are connected by a rotary seal, the lifting platform 3 controls the lifting of the driving mechanism 4 to drive the lifting of the driving shaft 5, the lifting platform 3 is a high-precision ball screw lifter,

[0022] A feed pipe 6 is provided at the upper end of the shell 2, and a dustproof end cover 7 is provided at the upper end of the feed pipe 6. A conical grinding block 8 is connected to the lower end of the drive shaft 5, and the grinding block 8 is coaxially fixedly connected to the drive shaft 5. The drive shaft 5 is raised and lowered to adjust the gap between the grinding block 8 and the inner wall of the shell 2. A pre-grinding block 9 is connected to the upper end of the grinding block 8. The pre-grinding block 9 is in a truncated cone shape with a larger upper portion and a smaller lower portion. A guide cone 10 with a smaller upper diameter and a larger lower diameter is provided on the upper end surface of the pre-grinding block 9. A plurality of baffles 11 extending radially along the guide shaft are evenly provided on the upper end surface of the guide cone 10. The guide cone 10 and the baffle 11 guide and disperse the raw materials put into the shell 2.

[0023] A discharge valve 12 is provided at the lower end of the shell 2, and a screw conveyor 13 is connected to the lower end of the discharge valve 12. The screw conveyor 13 is used to convey the ground raw materials. A plurality of telescopic mechanisms 14 are provided on the frame 1. The telescopic mechanisms 14 are all connected to a striking hammer 15. The telescopic mechanisms 14 extend radially along the shell 2. The telescopic mechanisms 14 control each striking hammer 15 to strike the shell 2 to generate vibration to avoid poor material discharge.

[0024] The specific working process is as follows: the height of the driving shaft 5 is controlled by the lifting platform 3, so as to adjust the distance between the pre-grinding block 9 and the grinding block 8 and the inner wall of the shell 2, and the driving mechanism 4 is used to drive the pre-grinding block 9 and the grinding block 8 to rotate synchronously, and the raw material is put into the shell 2 by using the feeding pipe 6, and the guide cone 10 and the baffle 11 guide and disperse the raw material put into the shell 2, and the raw material enters between the pre-grinding block 9 and the shell 2, and the raw material is ground and then enters between the grinding block 8 and the inner wall of the shell 2, and the grinding block 8 grinds the raw material and flows from the gap between the shell 2 and the grinding block 8 to the bottom and is discharged from the discharge valve 12, and then the ground raw material is transported by the screw conveyor 13. When the grinding is completed, the lifting platform 3 is controlled to lift the driving shaft 5, and each telescopic mechanism 14 is controlled to reciprocate and retract, and the knocking hammer 15 is used to knock the shell 2 to generate vibration, so as to vibrate the raw material adhering to the inner wall of the shell 2.

[0025] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A nano-alumina ceramic grinding device, characterized in that: It includes a frame, a conical shell is arranged in the frame, a lifting platform is arranged on the upper end of the shell, the lifting platform is arranged on the driving mechanism, the driving mechanism is arranged on the driving shaft extending into the shell, a feeding pipe is arranged on the upper end of the shell, a conical grinding block is connected to the lower end of the driving shaft, a pre-grinding block is connected to the upper end of the grinding block, the pre-grinding block is in the shape of a truncated cone with a larger upper part and a smaller lower part, and a discharge valve is arranged on the lower end of the shell.

2. A nano-alumina ceramic grinding device as claimed in claim 1, characterized in that: The lifting platform is a high-precision ball screw lift.

3. A nano-alumina ceramic grinding device as claimed in claim 1, characterized in that: The upper end surface of the pre-grinding block is provided with a guide cone with a smaller diameter at the top and a larger diameter at the bottom.

4. A nano-alumina ceramic grinding device as claimed in claim 3, characterized in that: The upper end surface of the guide cone is evenly provided with a plurality of baffles extending radially along the guide shaft.

5. The nano-alumina ceramic grinding device according to claim 1, characterized in that: The frame is provided with a plurality of telescopic mechanisms, each of which is connected with a striking hammer, and each of which extends in the radial direction of the shell.

6. A nano-alumina ceramic grinding device as claimed in claim 1, characterized in that: The lower end of the discharge valve is connected with a screw conveyor.

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