A graphite powder screening device for diamond production

Abstract

The utility model discloses a graphite powder screening device for diamond production belongs to diamond processing related technical field, including upper box body and lower box body, the upper box body fixed mounting is at the top of lower box body, be provided with the conical filter cartridge in the upper box body, and the inside installation of lower box body is used for driving the drive motor of conical filter cartridge rotation, and the four sides of upper box body all are installed with the material collecting mechanism of intercommunication with its inside, the top of conical filter cartridge buckle has the apron, and the top fixed mounting of apron has the handle, the top of upper box body is provided with the limiting slot for the top limiting of conical filter cartridge, the top of upper box body still is installed with the air inlet valve for material collecting mechanism air inlet at corner position, and the four sides of upper box body all are provided with the through slot, can effectively increase the screening area of graphite powder, improve screening efficiency.

Description

Technical Field

[0001] This utility model belongs to the technical field of diamond processing, specifically a graphite powder screening device for diamond production. Background Technology

[0002] In the production process of synthetic diamonds, graphite powder is one of the core raw materials. The uniformity and purity of its particle size directly determine the crystal quality, growth rate, and final product performance of the synthetic diamond. Currently, the industry has extremely high requirements for the particle size of graphite powder used in diamond production, which usually needs to be controlled within a specific range of 5-20μm. Therefore, high-precision and high-efficiency screening of graphite powder is a key pre-process in the diamond production process.

[0003] In the existing technology, when screening graphite powder, the sieve plate is usually installed at an angle for filtration. The sieve plate is basically rectangular or square. This filtration method not only has a small filtration area, but also relies on the gravity of the graphite powder itself for filtration, and the filtration effect is also relatively average. Utility Model Content

[0004] This invention provides a graphite powder screening device for diamond production, which can effectively solve the problems of small filtration area and mediocre effect when using sieve plates for filtration in the prior art: A graphite powder screening device for diamond production includes an upper box and a lower box. The upper box is fixedly installed on the top of the lower box. A conical filter cylinder is installed inside the upper box. A drive motor for driving the conical filter cylinder to rotate is installed inside the lower box. A material collection mechanism that communicates with the interior of the upper box is installed on all four sides of the upper box.

[0005] As a further technical solution of this utility model, the top of the conical filter cylinder is fastened with a cover plate, and a handle is fixedly installed on the top of the cover plate.

[0006] As a further technical solution of this utility model, the top of the upper box is provided with a limiting groove for limiting the top of the conical filter cylinder.

[0007] As a further technical solution of this utility model, an air inlet valve for the material collection mechanism is also installed at the corner of the top of the upper box, and through slots are opened on all four sides of the upper box.

[0008] As a further technical solution of this utility model, the material collection mechanism includes an interception box fixedly connected to the upper box body, and an upper cover plate is fixedly installed on the top of the interception box. A vibration motor is fixedly installed on the top of the upper cover plate, and several clip frames are installed at the bottom of the upper cover plate. An interception filter plate is clipped in the clip frames. Air inlet slots are opened on both sides of the interception box, and a material discharge slot is opened at the bottom of the interception box. A negative pressure fan is connected to the outside of the interception box through an air guide tube, and a collection box is fixedly connected to the bottom of the interception box.

[0009] As a further technical solution of this utility model, four connecting rods are fixedly connected between the negative pressure fan and the interception box, and the four connecting rods are distributed at the four corners of the opposite surfaces of the negative pressure fan and the interception box.

[0010] As a further technical solution of this utility model, the upper cover plate and both sides of the interception box are fixedly installed with fixing plates, and the fixing plates on the same side are fixed by fixing bolts.

[0011] As a further technical solution of this utility model, one of the air inlet slots is interconnected with the through slot, and the other air inlet slot is interconnected with the air guide tube.

[0012] As a further technical solution of this utility model, a discharge cylinder is fixedly connected to the bottom of the collection box, and a switch valve is installed on the discharge cylinder.

[0013] As a further technical solution of this utility model, the bottom of the collection box is symmetrical about the discharge cylinder and inclined towards the discharge cylinder discharge direction.

[0014] The beneficial effects of this utility model are as follows: This utility model uses a conical filter cylinder to screen graphite powder, replacing the traditional filter plate filtration method. The centrifugal force generated by the rotation of the conical filter cylinder screens the graphite powder, effectively increasing the filtration area and thus improving the filtration efficiency. With four collecting mechanisms working together, the filtered graphite powder can be collected quickly, further improving screening efficiency. Attached Figure Description

[0015] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a structural diagram of the material collection mechanism of this utility model; Figure 3 This is a cross-sectional view of the interception box in this utility model; Figure 4 This is an internal view of the upper and lower housings in this utility model.

[0017] In the diagram: 1. Upper housing; 2. Material collection mechanism; 201. Interception box; 202. Upper cover plate; 203. Vibration motor; 204. Air guide duct; 205. Negative pressure fan; 206. Collection box; 207. Discharge cylinder; 208. Frame; 209. Interception filter plate; 210. Air inlet slot; 211. Discharge slot; 3. Lower housing; 4. Conical filter cylinder; 5. Through slot. Detailed Implementation

[0018] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0019] like Figures 1-4 As shown, a graphite powder screening device for diamond production includes an upper box 1 and a lower box 3. The upper box 1 is fixedly installed on the top of the lower box 3. A conical filter cylinder 4 is provided inside the upper box 1. A drive motor for driving the conical filter cylinder 4 to rotate is installed inside the lower box 3. A material collection mechanism 2 that communicates with the interior is installed on all four sides of the upper box 1.

[0020] The top of the conical filter cartridge 4 is fitted with a cover plate, and a handle is fixedly installed on the top of the cover plate. The cover plate prevents graphite powder from overflowing during sieving, and the handle makes it easy to lift the cover plate.

[0021] The top of the upper housing 1 is provided with a limiting groove for limiting the top of the conical filter cylinder 4. The limiting groove is provided to limit the conical filter cylinder 4 and keep it rotating steadily.

[0022] An air inlet valve for the material collection mechanism 2 is installed at the corner of the top of the upper housing 1, and through slots 5 are provided on all four sides of the upper housing 1. The through slots 5 facilitate feeding operations from four directions through the upper housing 1.

[0023] The material collection mechanism 2 includes an interception box 201 fixedly connected to the upper box 1, and an upper cover plate 202 fixedly installed on the top of the interception box 201. A vibration motor 203 is fixedly installed on the top of the upper cover plate 202. Several clip frames 208 are installed at the bottom of the upper cover plate 202, and interception filter plates 209 are clipped in the clip frames 208. Air inlet slots 210 are opened on both sides of the interception box 201, and a material discharge slot 211 is opened at the bottom of the interception box 201. A negative pressure fan 205 is connected to the outside of the interception box 201 through an air guide duct 204, and a collection box 206 is fixedly connected to the bottom of the interception box 201.

[0024] During material collection, the negative pressure fan 205 exhausts air to the outside, creating a negative pressure inside the interception box 201. This draws the screened graphite powder into the interior of the interception box 201, and along the exhaust direction of the negative pressure fan 205, it is eventually intercepted by the interception filter plate 209, thus facilitating subsequent collection and processing.

[0025] Four connecting rods are also fixedly connected between the negative pressure fan 205 and the interception box 201. The four connecting rods are distributed at the four corners of the opposite sides of the negative pressure fan 205 and the interception box 201. The connecting rods reinforce the connection between the negative pressure fan 205 and the interception box 201, thereby maintaining the stability of the connection.

[0026] Both sides of the top cover plate 202 and the interception box 201 are fixedly installed with fixing plates, and the fixing plates on the same side are fixed by fixing bolts.

[0027] The upper cover plate 202 is fixed to the interception box 201 by fixing bolts to maintain a stable connection and facilitate the subsequent disassembly of the upper cover plate 202 and the interception filter plate 209.

[0028] One of the air inlet slots 210 is connected to the through slot 5, and the other air inlet slot 210 is connected to the air guide duct 204.

[0029] The bottom of the collection box 206 is fixedly connected to the discharge cylinder 207, and a switch valve is installed on the discharge cylinder 207. The bottom of the collection box 206 is symmetrical about the discharge cylinder 207 and is inclined towards the discharge direction of the discharge cylinder 207, so that the collected graphite powder can be discharged outward.

[0030] A graphite powder screening device for diamond production is used in the following steps: First, the graphite powder to be filtered is poured into the inside of a conical filter cylinder 4. Then, a cover plate is placed on top of the conical filter cylinder 4. The conical filter cylinder 4 is driven to rotate by a drive motor. The rotation of the conical filter cylinder 4 generates centrifugal force, thereby screening the graphite powder.

[0031] The screened graphite powder passes through the conical filter cylinder 4 and disperses in the space between it and the upper box 1. At this time, it is collected by the collecting mechanism 2. The cylinder negative pressure fan 205 exhausts air to generate negative pressure, which drives the graphite powder distributed in the upper box 1 to enter the interception box 201 through the through groove 5 from the air inlet groove 210. The graphite powder is intercepted by the interception filter plate 209, thereby discharging the screened graphite powder from the upper box 1.

[0032] The vibration motor 203 drives the upper cover plate 202 to vibrate, which is then transmitted to the interception filter plate 209, causing the graphite powder adhering to its surface to vibrate down and fall into the lower box 3. The discharge cylinder 207 at the bottom of the lower box 3 is then placed into the collection device, thus completing the collection of graphite powder.

[0033] The graphite powder particles trapped inside the conical filter cartridge 4 can eventually be sucked out by an external suction pump, making it easier to clean the inside.

[0034] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.

Claims

1. A graphite powder screening device for diamond production, comprising an upper housing (1) and a lower housing (3), wherein the upper housing (1) is fixedly installed on the top of the lower housing (3), characterized in that, The upper box (1) is equipped with a conical filter cylinder (4), and the lower box (3) is equipped with a drive motor for driving the conical filter cylinder (4) to rotate. The upper box (1) is equipped with a material collection mechanism (2) that communicates with its interior on all four sides.

2. The graphite powder screening device for diamond production according to claim 1, characterized in that, The top of the conical filter cartridge (4) is fastened with a cover plate, and a handle is fixedly installed on the top of the cover plate.

3. The graphite powder screening device for diamond production according to claim 2, characterized in that, The top of the upper housing (1) is provided with a limiting groove for limiting the top of the conical filter cylinder (4).

4. The graphite powder screening device for diamond production according to claim 1, characterized in that, An air intake valve for the material collection mechanism (2) is installed at the corner of the top of the upper box (1), and through slots (5) are provided on all four sides of the upper box (1).

5. The graphite powder screening device for diamond production according to claim 4, characterized in that, The material collection mechanism (2) includes an interception box (201) fixedly connected to the upper box (1), and an upper cover plate (202) is fixedly installed on the top of the interception box (201). A vibration motor (203) is fixedly installed on the top of the upper cover plate (202). Several card frames (208) are installed at the bottom of the upper cover plate (202), and an interception filter plate (209) is snapped into the card frame (208). Air inlet slots (210) are opened on both sides of the interception box (201), and a material discharge slot (211) is opened at the bottom of the interception box (201). A negative pressure fan (205) is connected to the outside of the interception box (201) through an air guide tube (204), and a collection box (206) is fixedly connected to the bottom of the interception box (201).

6. The graphite powder screening device for diamond production according to claim 5, characterized in that, Four connecting rods are also fixedly connected between the negative pressure fan (205) and the interception box (201). The four connecting rods are distributed at the four corners of the opposite surfaces of the negative pressure fan (205) and the interception box (201).

7. The graphite powder screening device for diamond production according to claim 6, characterized in that, The upper cover plate (202) and the interception box (201) are both fixedly installed with fixing plates on both sides, and the fixing plates on the same side are fixed by fixing bolts.

8. The graphite powder screening device for diamond production according to claim 7, characterized in that, One of the air inlet slots (210) is connected to the through slot (5), and the other air inlet slot (210) is connected to the air guide tube (204).

9. A graphite powder screening device for diamond production according to claim 8, characterized in that, The bottom of the collection box (206) is fixedly connected to a discharge cylinder (207), and a switch valve is installed on the discharge cylinder (207).

10. A graphite powder screening device for diamond production according to claim 9, characterized in that, The bottom of the collection box (206) is symmetrical about the discharge cylinder (207) and tilted towards the discharge direction of the discharge cylinder (207).

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