A high-purity diamond micro-powder purification and grading device

Abstract

The utility model relates to diamond micro powder purification technical field discloses a kind of high-purity diamond micro powder purification grading device, including chassis, the chassis upper end is equipped with multiple groups of multiple groups of annular disc with gradually reducing radius, collecting groove is opened between the annular disc. Start blower, blower will gas be discharged at high speed through blowing pipe, blow diamond micro powder placed in annular disc middle end and diffuse everywhere, diffused diamond micro powder successively pass through the screening of first filter frame, second filter frame, third filter frame, after screening is finished, close blower, diamond micro powder of large aperture falls into the most inboard collecting groove and is collected, diamond micro powder of minimum size is intercepted by third filter frame, falls into the most outboard collecting groove and is collected, since collecting groove and collecting groove between are separated by annular disc, so there is diamond micro powder with gradually smaller size in collecting groove and is collected in turn from inside to outside.

Description

Technical Field

[0001] This utility model relates to the field of diamond micron powder purification technology, and in particular to a high-purity diamond micron powder purification and grading device. Background Technology

[0002] Diamond micron powder refers to diamond particles with a size finer than 54 micrometers. It is mainly divided into two categories: single-crystal and polycrystalline. Single-crystal diamond micron powder is made from synthetic diamond single crystals through crushing and shaping processes. It has a regular crystal shape and possesses high strength, high toughness, and good thermal stability. It is commonly used in electroplating products, grinding wheels, polishing wheels, and high-grade stone polishing. Polycrystalline diamond micron powder is obtained from graphite through directional blasting. Its particles are composed of tiny diamond crystals bonded together, exhibiting good toughness and strong self-sharpening properties. It is suitable for ultra-fine processing of chip optical crystals and ultra-fine polishing of large silicon wafers.

[0003] After processing, existing diamond micron powder is not convenient to be graded and filtered according to the required diamond micron powder size, which will lead to uneven product particle size, affect processing accuracy and quality, and increase subsequent screening processes and costs. Utility Model Content

[0004] Given that existing diamond micron powders are inconvenient to grade and filter according to the required diamond micron powder size after processing, which leads to uneven product particle size, affects processing accuracy and quality, and increases subsequent screening processes and costs, this utility model is proposed.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a high-purity diamond micron powder purification and grading device, including a chassis, with multiple sets of annular discs of gradually decreasing radius at the upper end of the chassis, and a collection groove between the annular discs. A first filter frame, a second filter frame, and a third filter frame are respectively inserted into the upper end of the annular discs with increasing radius. A grading cylinder is fitted on the outer wall of the third filter frame. An outer cylinder cover is provided at the upper end of the grading cylinder. A motor is provided at the upper end of the outer cylinder cover. A rotating shaft is provided at the output end of the motor. A middle cylinder cover and an inner cylinder cover of gradually decreasing radius are sequentially fitted on the outer wall of the rotating shaft located in the inner cavity of the outer cylinder cover. Multiple sets of cleaning rods are provided on the outer wall of the rotating shaft. A blower is fixedly provided at the bottom end of the chassis. An air blowing pipe is connected to the air outlet end of the blower. A filter screen is provided at the end of the air blowing pipe away from the blower. An air outlet pipe is connected to the lower outer wall of the grading cylinder.

[0006] As a preferred embodiment of the high-purity diamond micron powder purification and grading device of this utility model, the lower ends of the first filter frame, the second filter frame, and the third filter frame are all provided with slots that cooperate with the annular disk, and the slots are all movably sleeved on the upper end of the annular disk.

[0007] As a preferred embodiment of the high-purity diamond micro powder purification and grading device of this utility model, the rotating shaft moves sequentially from top to bottom through the outer cylinder cover, the middle cylinder cover, and the inner cylinder cover, and the rotating shaft is rotatably inserted into the middle of the outer cylinder cover, the middle cylinder cover, and the inner cylinder cover.

[0008] In a preferred embodiment of the high-purity diamond micron powder purification and grading device of this utility model, multiple sets of cleaning rods are sequentially attached to the inner walls of the first filter frame, the second filter frame, and the third filter frame from the inside out.

[0009] As a preferred embodiment of the high-purity diamond micron powder purification and grading device of this utility model, the lower end of the outer cylinder cover is fixedly provided with a positioning rod, the upper end of the grading cylinder is provided with an insertion hole that cooperates with the positioning rod, and the lower end of the positioning rod is movably inserted into the insertion hole.

[0010] As a preferred embodiment of the high-purity diamond micron powder purification and grading device of this utility model, the outer wall of the outer cylinder cover is fixedly provided with a positioning bolt, the lower end of the positioning bolt moves through the chassis, the chassis has a positioning hole that matches the positioning bolt, and the lower end of the positioning bolt passes through the positioning hole and is threaded with a nut.

[0011] As a preferred embodiment of the high-purity diamond micro powder purification and grading device of this utility model, the sieve apertures of the first filter frame, the second filter frame, and the third filter frame gradually decrease in size, and the lower ends of the outer cylinder cover, the middle cylinder cover, and the inner cylinder cover are sequentially fitted with the upper ends of the third filter frame, the second filter frame, and the first filter frame.

[0012] Compared with the prior art, the present invention has at least the following beneficial effects: 1. In this utility model, when the blower is started, the blower discharges gas at high speed through the air pipe, which agitates the diamond micro powder placed in the middle of the annular disk to spread in all directions. The diffused diamond micro powder passes through the first filter frame, the second filter frame, and the third filter frame in sequence for screening. After screening, the blower is turned off. The diamond micro powder with large pore size falls into the innermost collection tank for collection, while the diamond micro powder with the smallest size is intercepted by the third filter frame and falls into the outermost collection tank for collection. Since the collection tanks are separated by the annular disk, the collection tanks collect diamond micro powder with gradually decreasing size from the inside to the outside.

[0013] 2. In the grading process, the present invention can start a motor to drive the rotating shaft to rotate, and the rotating shaft to drive the cleaning rod to rotate. The cleaning rod can clean the inner walls of the first filter frame, the second filter frame, and the third filter frame, so as to avoid excessive powder adhering to the inner walls of the first filter frame, the second filter frame, and the third filter frame, which would affect the screening effect and thus increase the grading efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the high-purity diamond micron powder purification and grading device of this utility model; Figure 2 This is a three-dimensional cross-sectional view of the overall structure of the high-purity diamond micron powder purification and grading device of this utility model. Figure 3 This is a three-dimensional cross-sectional view of the barrel lid portion of the high-purity diamond micron powder purification and grading device of this utility model. Figure 4 This is a partial cross-sectional three-dimensional structural schematic diagram of the high-purity diamond micron powder purification and grading device of this utility model; Figure 5 This is a three-dimensional exploded view of the outer cylinder cover and the grading cylinder of the high-purity diamond micron powder purification and grading device of this utility model.

[0015] Explanation of reference numerals in the attached figures: 1. Chassis; 2. Annular disc; 3. Collection trough; 4. First filter frame; 5. Second filter frame; 6. Third filter frame; 7. Outer cylinder cover; 8. Motor; 9. Shaft; 10. Middle cylinder cover; 11. Inner cylinder cover; 12. Cleaning rod; 13. Positioning bolt; 14. Nut; 15. Blower; 16. Air blowing pipe; 17. Filter screen; 18. Positioning rod; 19. Air outlet pipe; 20. Grading cylinder. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Example 1 Reference Figures 1-5 This is the first embodiment of the present invention, which provides a high-purity diamond micron powder purification and grading device, including a chassis 1. The upper end of the chassis 1 is provided with multiple sets of annular discs 2 with gradually decreasing radii. A collection groove 3 is opened between the annular discs 2. The upper ends of the annular discs 2 with increasing radii are respectively provided with a first filter frame 4, a second filter frame 5, and a third filter frame 6. A grading cylinder 20 is sleeved on the outer wall of the third filter frame 6. The upper end of the grading cylinder 20 is provided with an outer cylinder cover 7. The upper end of the outer cylinder cover 7 is provided with a motor 8. The output end of the motor 8 is provided with a rotating shaft 9. The outer wall of the rotating shaft 9 located in the inner cavity of the outer cylinder cover 7 is successively sleeved with a middle cylinder cover 10 and an inner cylinder cover 11 with gradually decreasing radii. Multiple sets of cleaning rods 12 are provided on the outer wall of the rotating shaft 9. A blower 15 is fixedly provided at the bottom end of the chassis 1. The air outlet end of the blower 15 is connected to an air blowing pipe 16. The end of the air blowing pipe 16 away from the blower 15 is provided with a filter screen 17. The lower outer wall of the grading cylinder 20 is connected to an air outlet pipe 19.

[0018] The lower ends of the first filter frame 4, the second filter frame 5, and the third filter frame 6 are all provided with slots that cooperate with the annular disk 2, and the slots are all movably fitted onto the upper end of the annular disk 2.

[0019] The rotating shaft 9 moves from top to bottom through the outer cylinder cover 7, the middle cylinder cover 10, and the inner cylinder cover 11. The rotating shaft 9 is inserted into the middle of the outer cylinder cover 7, the middle cylinder cover 10, and the inner cylinder cover 11.

[0020] Multiple sets of cleaning rods 12 are sequentially attached to the inner walls of the first filter frame 4, the second filter frame 5, and the third filter frame 6 from the inside out.

[0021] The lower end of the outer cylinder cover 7 is fixedly provided with a positioning rod 18, and the upper end of the grading cylinder 20 is provided with a socket that matches the positioning rod 18. The lower end of the positioning rod 18 is movably inserted into the socket.

[0022] The outer wall of the outer cylinder cover 7 is fixedly provided with a positioning bolt 13. The lower end of the positioning bolt 13 moves through the chassis 1. The chassis 1 has a positioning hole that matches the positioning bolt 13. The lower end of the positioning bolt 13 passes through the positioning hole and is threaded with a nut 14.

[0023] The sieve apertures of the first filter frame 4, the second filter frame 5, and the third filter frame 6 gradually decrease in size. The lower ends of the outer cylinder cover 7, the middle cylinder cover 10, and the inner cylinder cover 11 are successively attached to the upper ends of the third filter frame 6, the second filter frame 5, and the first filter frame 4.

[0024] Place the diamond powder to be graded into the central annular disk 2. Then, sequentially fit the slots at the lower ends of the first filter frame 4, second filter frame 5, and third filter frame 6 onto the upper end of the collection tank 3 from the inside out. Fit the grading cylinder 20 onto the outer wall of the third filter frame 6. Next, insert the positioning rod 18 at the lower end of the outer cylinder cover 7 into the insertion hole of the grading cylinder 20, allowing the positioning bolts 13 on both sides of the outer cylinder cover 7 to move through the base plate 1. Screw in the nuts 14 and fit the nuts 14 onto the lower ends of the positioning bolts 13 until the nuts 14 and the lower end of the base plate 1 are in contact. At this point, the installation of the grading cylinder 20 and the outer cylinder cover 7 is complete. Next, blower 15 is started, and blower 15 discharges gas at high speed through air blowing pipe 16. The pore size of filter screen 17 is smaller than the pore size of the smallest diamond micro powder, thus preventing diamond micro powder from entering air blowing pipe 16. The gas blown out of air blowing pipe 16 agitates the diamond micro powder placed in the middle of the annular disk 2 and disperses it in all directions. Finally, the air is discharged through air outlet pipe 19. The dispersed diamond micro powder passes through the first filter frame 4, the second filter frame 5, and the third filter frame 6 in sequence. As the pore size of the first filter frame 4, the second filter frame 5, and the third filter frame 6 gradually decreases, the diamond micro powder with gradually decreasing size passes through the sieve. After screening, blower 15 is turned off. Large-aperture diamond powder falls into the innermost collection tank 3 for collection, while the smallest diamond powder is intercepted by the third filter frame 6 and falls into the outermost collection tank 3 for collection. Since the collection tanks 3 are separated by annular disc 2, the collection tanks 3 collect diamond powder of progressively smaller sizes from the inside out. After grading, blower 15 is turned off, and nut 14 is unscrewed from the lower end of positioning bolt 13. The operator removes the outer cylinder cover 7 from the top of grading cylinder 20, then removes grading cylinder 20 from the top of base plate 1. Finally, the diamond powder is collected sequentially from the outside in. The first filter frame 6, the second filter frame 5, and the first filter frame 4 can be removed, allowing staff to easily clean them. Staff can also collect the sorted diamond powder from the collection tank 3. During the grading process, the motor 8 can be started to drive the rotating shaft 9, which in turn drives the cleaning rod 12. The cleaning rod 12 cleans the inner walls of the first filter frame 4, the second filter frame 5, and the third filter frame 6, preventing excessive powder from adhering to these frames and affecting the sieving effect, thus increasing grading efficiency.

[0025] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A high-purity diamond micron powder purification and classification device, comprising a chassis (1), characterized in that: The upper end of the chassis (1) is provided with multiple sets of annular discs (2) with gradually decreasing radii. A collection groove (3) is provided between the annular discs (2). The upper ends of the annular discs (2) with increasing radii are respectively provided with a first filter frame (4), a second filter frame (5), and a third filter frame (6). The outer wall of the third filter frame (6) is fitted with a grading cylinder (20). The upper end of the grading cylinder (20) is provided with an outer cylinder cover (7). The upper end of the outer cylinder cover (7) is provided with a motor (8). The output end of the motor (8) is provided with a rotating shaft (…). 9), the rotating shaft (9) is located in the outer wall of the inner cavity of the outer cylinder cover (7) and the middle cylinder cover (10) and the inner cylinder cover (11) with gradually decreasing radius are successively fitted. The outer wall of the rotating shaft (9) is provided with multiple sets of cleaning rods (12). The bottom end of the chassis (1) is fixedly provided with a blower (15). The air outlet end of the blower (15) is connected to an air blowing pipe (16). The end of the air blowing pipe (16) away from the blower (15) is provided with a filter screen (17). The lower outer wall of the grading cylinder (20) is connected to an air outlet pipe (19).

2. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The lower ends of the first filter frame (4), the second filter frame (5), and the third filter frame (6) are all provided with slots that cooperate with the annular disk (2), and the slots are all movably fitted on the upper end of the annular disk (2).

3. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The rotating shaft (9) moves from top to bottom through the outer cylinder cover (7), the middle cylinder cover (10), and the inner cylinder cover (11). The rotating shaft (9) is inserted into the middle of the outer cylinder cover (7), the middle cylinder cover (10), and the inner cylinder cover (11).

4. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The multiple sets of cleaning rods (12) are sequentially attached to the inner walls of the first filter frame (4), the second filter frame (5), and the third filter frame (6) from the inside out.

5. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The lower end of the outer cylinder cover (7) is fixedly provided with a positioning rod (18), and the upper end of the grading cylinder (20) is provided with a socket that cooperates with the positioning rod (18). The lower end of the positioning rod (18) is movably inserted into the socket.

6. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The outer wall of the outer cylinder cover (7) is fixed with a positioning bolt (13). The lower end of the positioning bolt (13) moves through the chassis (1). The chassis (1) has a positioning hole that matches the positioning bolt (13). The lower end of the positioning bolt (13) passes through the positioning hole and is threaded with a nut (14).

7. The high-purity diamond micron powder purification and classification device according to claim 1, characterized in that: The sieve apertures of the first filter frame (4), the second filter frame (5), and the third filter frame (6) gradually decrease in size. The lower ends of the outer cylinder cover (7), the middle cylinder cover (10), and the inner cylinder cover (11) are sequentially attached to the upper ends of the third filter frame (6), the second filter frame (5), and the first filter frame (4).

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