Drying device for diamond micro-powder purification

Abstract

The utility model discloses a drying device for purifying diamond micro-powder, relates to the technical field of diamond processing, and aims to improve the oxidation pollution condition when the diamond micro-powder is dried, shorten the drying time, prevent the loss of raw materials during the drying of the diamond micro-powder and improve the quality of the diamond micro-powder. According to the technical scheme, the drying device for diamond micro-powder purification is characterized by comprising an outer box and a drying part, the outer box comprises a box body and a box door, the drying part comprises a containing frame and a microwave system, the box body is provided with supporting legs, a heat preservation layer and a silica gel sealing strip, and the box door is provided with a door handle, a vacuum meter, an inflation valve, an extraction valve and an air supply opening. The placing frame comprises a frame body, frame feet, a right-angle frame, a baking pan and a ventilation opening, the microwave system comprises a microwave generator, a heating pipe and a low-temperature condenser, the drying rate is increased through the vacuum environment, the pressure in the box body can be adjusted, and normal operation of the device is maintained.

Description

Technical Field

[0001] This utility model relates to the field of diamond processing technology, and in particular to a drying device for purifying diamond micron powder. Background Technology

[0002] Diamond micron powder refers to diamond particles with a size finer than 54 micrometers. It is a new type of superhard and ultrafine abrasive formed by processing synthetic diamond single crystals through special processes. It is an ideal raw material for grinding and polishing high-hardness materials such as cemented carbide, ceramics, gemstones, and optical glass. Diamond products are tools and components made from diamond materials and have a wide range of applications. Diamond micron powder and its products are widely used in the automotive, machinery, electronics, aerospace, optical instruments, glass, ceramics, petroleum, and geological industries. The raw materials for diamond micron powder usually contain a large number of impurities, such as graphite, catalyst metals, and pyrophyllite. Furthermore, a large number of metallic impurities are introduced during subsequent crushing and shaping processes. These impurities reduce the overall hardness and performance of the diamond. Through purification, the purity of diamond micron powder can be significantly improved, removing most metallic impurities and graphite, thereby enhancing its hardness and performance.

[0003] In the purification of diamond micron powder, it is necessary to dry it. However, existing diamond micron powder drying equipment cannot provide a vacuum environment, which can easily cause oxidation and contamination of the raw materials, affecting drying efficiency. In the high vacuum environment, the air flow of existing diamond micron powder drying equipment is restricted, which can easily lead to uneven drying of diamond micron powder. Under excessively high internal pressure, it can affect the normal operation and lifespan of the equipment. Existing diamond micron powder drying equipment uses blowers to remove moisture from the diamond micron powder, which makes the diamond micron powder easily blown or moved by the flowing air, resulting in raw material loss. Utility Model Content

[0004] The purpose of this invention is to provide a drying device for purifying diamond micron powder, which effectively improves the oxidation pollution during the drying of diamond micron powder, shortens the drying time, and prevents the loss of raw materials during the drying process.

[0005] To achieve the above purpose, the present invention provides the following solutions:

[0006] A drying device for purifying diamond micron powder includes an outer casing and a drying section. The outer casing is cubic in shape, and the drying section is located inside the outer casing. The outer casing includes a box body and a door. The door is hinged to the front of the box body, and an exhaust valve is provided on the door. The exhaust valve is connected to an external vacuum pump. A vacuum chamber is formed inside the box body by the vacuum pump. The drying section is located inside the box body and includes a placement rack and a microwave system. The placement rack is placed inside the box body, and the microwave system is distributed at the bottom of the box body. The microwave system is equipped with a low-temperature condenser, which is embedded in the bottom left side of the box body.

[0007] Furthermore, the box body is provided with support feet, insulation layer and silicone sealing strip. Support feet are welded to the bottom of the box body and fixed to the four corners of the box body. The insulation layer is fixed inside the box body and surrounds the placement rack. The silicone sealing strip is glued to the front end of the insulation layer. The box door is sealed inside the insulation layer by the silicone sealing strip.

[0008] Furthermore, the chamber door is equipped with a door handle, a vacuum gauge, an inflation valve, an exhaust valve, and a gas supply port. The door handle is welded to the right side of the chamber door. A vacuum gauge is embedded near the top of the chamber door. An inflation valve is located below the vacuum gauge and is embedded inside the chamber door. The inert gas is input into the chamber through the inflation valve. The exhaust valve is located below the inflation valve. The inflation valve and the exhaust valve are axially symmetrically embedded in the chamber door. A gas supply port is welded to the center of the chamber door.

[0009] Furthermore, the placement rack includes a frame body, frame legs, right-angle frames, drying trays, and ventilation openings. The frame legs are welded to the bottom of the frame body. The right-angle frames are arranged inside the frame body. Several drying trays are provided and placed on the right-angle frames. The drying trays are arranged inside the frame body via the right-angle frames. Diamond micro powder is placed inside the drying trays. Ventilation openings are provided on the side of the frame body, and water vapor inside the frame body is discharged through the ventilation openings.

[0010] Furthermore, the microwave system includes a microwave generator, heating tubes, and a low-temperature condenser. The microwave generator is fixed on the right side of the enclosure. Heating tubes are installed inside the enclosure and distributed below the placement rack. The heating tubes are connected to the microwave generator. The low-temperature condenser is embedded in the enclosure, and water vapor inside the enclosure is condensed into water by the low-temperature condenser and discharged.

[0011] In summary, the beneficial technical effects of this utility model are as follows:

[0012] 1. An air extraction valve is used, which is connected to a vacuum pump to extract the air from the chamber, creating a low-pressure vacuum environment. This is beneficial for improving drying efficiency and speed, while also preventing oxidation and contamination of the raw materials.

[0013] 2. An air inlet was selected. During vacuuming, air is supplied through the air inlet, which can promote air circulation, improve drying uniformity, regulate the internal pressure of the equipment, and prevent equipment damage caused by excessive pressure.

[0014] 3. A low-temperature condenser is used to condense the water vapor generated during the drying process into water and discharge it, avoiding the blower drying method from blowing the diamond powder and protecting the normal operation of the vacuum pump. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the outer casing structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the drying section of this utility model.

[0018] 1. Outer casing; 2. Drying section; 11. Cabinet body; 12. Cabinet door; 21. Placement rack; 22. Microwave system; 111. Support legs; 112. Insulation layer; 113. Silicone sealing strip; 121. Door handle; 122. Vacuum gauge; 123. Gas filling valve; 124. Gas extraction valve; 125. Gas inlet; 211. Frame body; 212. Frame legs; 213. Right-angle frame; 214. Drying tray; 215. Ventilation opening; 221. Microwave generator; 222. Heating element; 223. Low-temperature condenser. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings.

[0020] This utility model discloses a drying device for purifying diamond micron powder, comprising an outer casing 1 and a drying section 2. The outer casing 1 is cubic in shape, and the drying section 2 is disposed inside the outer casing 1. The outer casing 1 includes a box body 11 and a door 12. The door 12 is hinged to the front of the box body 11, and an air extraction valve 124 is provided on the door 12. The air extraction valve 124 is connected to an external vacuum pump. The vacuum pump connected to the air extraction valve 124 extracts the air from inside the box body 11, forming a vacuum chamber inside the box body 11. The vacuum environment is beneficial to improving drying efficiency and drying speed. The drying section 2 is disposed inside the box body 11, and the drying section 2 includes a placement rack 21 and a microwave system 2. 2. A placement rack 21 is placed inside the housing 11. The placement rack 21 is used to hold diamond micron powder. The placement rack 21 has several layers to evenly dry the diamond micron powder. The microwave system 22 is located at the bottom of the housing 11. The microwave system 22 generates high-frequency electromagnetic waves, causing the polar molecules in the material to rotate and vibrate rapidly, thereby generating frictional heat, which rapidly heats up and dries the material. The microwave system 22 is equipped with a low-temperature condenser 223, which is embedded in the bottom left side of the housing 11. The low-temperature condenser 223 condenses the water vapor generated during the drying process into water and discharges it, protecting the integrity of the diamond micron powder raw material. See details below. Figure 1 .

[0021] The chamber 11 is equipped with support feet 111, an insulation layer 112, and a silicone sealing strip 113. The support feet 111 are welded to the bottom of the chamber 11 and are fixed to the four corners of the chamber 11. The support feet 111 support the chamber 11 and prevent the bottom of the chamber 11 from contacting the ground. The insulation layer 112 is fixed inside the chamber 11 and surrounds the placement rack 21. The insulation layer 112 keeps the temperature inside the chamber stable and reduces energy loss. The silicone sealing strip 113 is glued to the front end of the insulation layer 112. The chamber door 12 is sealed inside the insulation layer 112 by the silicone sealing strip 113, ensuring the sealing performance of the device and preventing external dust and moisture from entering the chamber 11. At the same time, it maintains the required vacuum degree inside the chamber 11 and maintains the drying effect of the device. The chamber door 12 is equipped with a door handle 121, a vacuum gauge 122, an inflation valve 123, an extraction valve 124, and an air inlet 125. The door handle 121 is welded to the right side of the chamber door 12, allowing the chamber door 12 to be opened. The vacuum gauge 122 is embedded near the top of the chamber door 12. The vacuum gauge 122 displays and measures the vacuum level inside the chamber, indicating the degree of gas scarcity within the chamber 11, thereby monitoring and adjusting the vacuum drying process. Below the vacuum gauge 122 is the inflation valve 123, which is embedded inside the chamber door 12. Inert gas is introduced through the inflation valve 123. Inside chamber 11, inert gas isolates oxygen, preventing oxidation of the material during drying and maintaining its stability and quality. A vacuum valve 124 is located below the inflation valve 123 and is connected to a vacuum pump. The vacuum pump extracts air from inside chamber 11 to create a vacuum chamber. The inflation valve 123 and vacuum valve 124 are symmetrically embedded in the chamber door 12. A gas inlet 125 is welded to the center of the chamber door 12. During vacuuming, air is supplied through the gas inlet 125, promoting air circulation, improving drying uniformity, regulating internal pressure, and preventing damage from excessive pressure. See details... Figure 2 .

[0022] The placement rack 21 includes a frame body 211, frame legs 212, right-angle frames 213, drying trays 214, and ventilation openings 215. The frame legs 212 are welded to the bottom of the frame body 211, supporting the frame body 211 and leaving space between the bottom of the frame body 211 and the insulation layer 112. The right-angle frames 213 are arranged inside the frame body 211. Several drying trays 214 are provided and placed on the right-angle frames 213. The drying trays 214 are arranged inside the frame body 211 via the right-angle frames 213. The drying trays 214 are used to place diamond micro powder. The diamond micro powder is spread in layers of drying trays 214 to dry the diamond micro powder evenly. Ventilation openings 215 are provided on the side of the frame body 211, through which water vapor inside the frame body 211 is discharged. The microwave system 22 includes a microwave generator 221, heating tubes 222, and a low-temperature condenser 223. The microwave generator 221 is fixed to the right side of the housing 11. Heating tubes 222 are installed inside the housing 11 and are distributed below the placement rack 21. The heating tubes 222 are connected to the microwave generator 221. High-frequency electromagnetic waves generated by the microwave generator 221 are transmitted to the heating tubes 222, causing the material to generate heat due to the action of the high-frequency electromagnetic waves, thereby drying it. The low-temperature condenser 223 is embedded in the housing 11. Water vapor inside the housing 11 is condensed into water by the low-temperature condenser 223 and discharged. The low-temperature condenser 223 condenses the water vapor generated during the drying process into water and discharges it, avoiding the blower drying method from blowing the diamond powder and protecting the normal operation of the vacuum pump. See details. Figure 3 .

[0023] Example

[0024] Operating procedures

[0025] 1. Open the box door 12 using the handle, and then remove the baking tray 214 from the rack 21;

[0026] 2. Spread the diamond powder that needs to be dried evenly in the drying tray 214, and then put the drying tray 214 back into the rack 21;

[0027] 3. Close the chamber door 12, connect the vacuum pump to the suction valve 124 and turn it on, then turn on the microwave system 22 to perform vacuum drying;

[0028] 4. Add gas at the gas inlet 125 according to the value displayed on the vacuum gauge 122;

[0029] 5. The low-temperature condenser 223 condenses the water vapor generated during the drying process into water and discharges it;

[0030] 6. After drying is complete, open the door 12 and remove the drying tray 214 to collect the dried diamond powder.

[0031] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. A drying device for purifying diamond micron powder, comprising an outer casing (1) and a drying section (2), wherein the outer casing (1) is in the shape of a cube, and the drying section (2) is disposed inside the outer casing (1), characterized in that: The outer casing (1) includes a casing (11) and a door (12). The door (12) is hinged to the front of the casing (11). A vacuum valve (124) is provided on the door (12). The vacuum valve (124) is connected to an external vacuum pump. A vacuum chamber is formed inside the casing (11) by the vacuum pump. A drying section (2) is provided inside the casing (11). The drying section (2) includes a placement rack (21) and a microwave system (22). The placement rack (21) is placed inside the casing (11). The microwave system (22) is distributed at the bottom of the casing (11). The microwave system (22) is equipped with a low-temperature condenser (223). The low-temperature condenser (223) is embedded in the bottom left side of the casing (11).

2. The drying apparatus for purifying diamond micron powder according to claim 1, characterized in that: The box body (11) is provided with support feet (111), insulation layer (112) and silicone sealing strip (113). The support feet (111) are welded to the bottom of the box body (11) and the support feet (111) are fixed at the four corners of the box body (11). The insulation layer (112) is fixed inside the box body (11) and surrounds the placement rack (21). The silicone sealing strip (113) is glued to the front end of the insulation layer (112). The box door (12) is sealed inside the insulation layer (112) by the silicone sealing strip (113).

3. The drying apparatus for purifying diamond micron powder according to claim 1, characterized in that: The box door (12) is equipped with a door handle (121), a vacuum gauge (122), an inflation valve (123), an exhaust valve (124), and a gas inlet (125). The door handle (121) is welded to the right side of the box door (12). The vacuum gauge (122) is embedded in the top of the box door (12). The inflation valve (123) is located below the vacuum gauge (122). The inflation valve (123) is embedded inside the box door (12). Inert gas is input into the box body (11) through the inflation valve (123). The exhaust valve (124) is located below the inflation valve (123). The inflation valve (123) and the exhaust valve (124) are axially symmetrically embedded in the box door (12). The gas inlet (125) is welded to the center of the box door (12).

4. The drying apparatus for purifying diamond micron powder according to claim 1, characterized in that: The placement rack (21) includes a frame (211), frame legs (212), right-angle frames (213), drying trays (214), and ventilation openings (215). The frame legs (212) are welded to the bottom of the frame (211). The right-angle frames (213) are arranged inside the frame (211). Several drying trays (214) are arranged and placed on the right-angle frames (213). The drying trays (214) are arranged inside the frame (211) via the right-angle frames (213). Diamond micro powder is placed inside the drying trays (214). Ventilation openings (215) are provided on the side of the frame (211). Water vapor inside the frame (211) is discharged through the ventilation openings (215).

5. The drying apparatus for purifying diamond micron powder according to claim 1, characterized in that: The microwave system (22) includes a microwave generator (221), a heating tube (222), and a low-temperature condenser (223). The microwave generator (221) is fixed on the right side of the housing (11). The heating tube (222) is installed inside the housing (11). The heating tube (222) is distributed below the placement rack (21). The heating tube (222) is connected to the microwave generator (221). The low-temperature condenser (223) is embedded in the housing (11). Water vapor inside the housing (11) is condensed into water by the low-temperature condenser (223) and discharged.

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