Apparatus and method for preparing diamond using hair-extracted gas as carbon source

Abstract

The application discloses a device and method for preparing diamond by using hair-extracted gas as a carbon source, which comprises an equipment box, a device cover rotatably connected to one side of the top wall of the equipment box, support frames fixedly connected to the outer walls of the equipment box, sealing doors fixedly connected to the top walls of the two support frames, sealing door screws threadedly connected to the outer walls of the sealing doors, one and the same quartz tube communicated in the interiors of the two sealing doors, one end of the quartz tube communicated with one end of a vacuum pressure gauge, the other end of the vacuum pressure gauge respectively communicated with a gas discharge pipeline and a second pipeline, and valves one and two respectively communicated in the interiors of the gas discharge pipeline and the second pipeline. The carbon content in the gas generated by burning hair is relatively high, which is favorable for preparing high-purity diamond, and the process flow is relatively simple, only the burning process of hair is needed, and the preparation process is more direct.

Description

Technical Field

[0001] This application relates to the field of diamond preparation technology, and in particular to an apparatus and method for preparing diamonds using hair-extracted gas as a carbon source. Background Technology

[0002] Diamond is an ancient crystalline material, a single-element form of carbon. A meticulously polished diamond is called a diamond. Due to its excellent physicochemical properties, such as high hardness, high thermal conductivity, wide bandgap, and high transmittance in the visible and infrared range, diamond has promising applications in ultra-precision machining, electronics, and optical materials. However, the rarity and inconsistent quality of natural diamonds make them unsuitable for industrial applications, leading to the development of artificial diamond synthesis as a hot research topic. Microwave plasma chemical vapor deposition (MPCVD) stands out among various synthesis methods due to its high efficiency, lack of pollution, and ability to deposit on large areas. To imbue diamonds with more unique and distinctive meaning, people seek to create diamonds from the hair of beloved animals or close relatives, giving them eternal commemorative significance.

[0003] A search revealed Chinese Patent Publication No. CN117448794A, which discloses a method for preparing life diamonds using hair as a carbon source via CVD process. This application uses hair as a carbon source to grow life diamonds using a CVD device, which improves upon the problem of the high cost of using methane as a carbon source, and the synthesized diamonds have more unique and profound commemorative significance.

[0004] Regarding the aforementioned technologies, the inventors believe that since the application involves extracting diamonds from hair combustion residue and then culturing them, multiple steps of combustion, extraction, and culturing are required, thus extending the diamond cultivation and preparation time. Summary of the Invention

[0005] The purpose of this application is to provide an apparatus and method for preparing diamonds using hair extraction gas as a carbon source, in order to improve the problem that the diamond preparation time is prolonged due to the need for multiple steps of combustion, extraction and cultivation after extraction from hair combustion residue.

[0006] The apparatus for preparing diamonds using hair-extracted gas as a carbon source provided in this application adopts the following technical solution:

[0007] An apparatus for preparing diamonds using hair-extracted gas as a carbon source includes an equipment box. An equipment cover is rotatably connected to one side of the top wall of the equipment box. Support frames are fixedly connected to both sides of the outer wall of the equipment box. Sealing doors are fixedly connected to the top walls of the two support frames. Sealing door screws are threaded onto the outer walls of the sealing doors. The interiors of the two sealing doors are connected to the same quartz tube. One end of the quartz tube is connected to one end of a vacuum pressure gauge. The other end of the vacuum pressure gauge is connected to a vent pipe and a second pipe, respectively. Valves one and two are respectively connected inside the vent pipe and the second pipe.

[0008] By adopting the above technical solution

[0009] Optionally, a handle is fixedly connected to the front side of the outer wall of the equipment cover, a latch is fixedly connected to one end of the front side of the outer wall of the equipment box, and a control board is electrically connected to the middle of the front side of the outer wall of the equipment box.

[0010] This invention also provides a method for preparing diamonds using hair-extracted gas as a carbon source, comprising the following steps:

[0011] S1. Preparation before operation: Prepare the tools needed for odor extraction, including: tweezers, crucible, ethanol, 1-5g of bone fragments, hair, ash, and gas storage cylinders for storing the gas.

[0012] S2. Wash with pure water. Use tweezers to put the bone fragments and hair into a beaker of pure water. Add pure water until the bone fragments and hair are submerged. Use tweezers to gently stir and wash. Repeat this process 2 to 5 times until the pure water is no longer obviously cloudy.

[0013] S3. Alcohol cleaning: Use tweezers to remove the bone fragments and hair from the pure water beaker and put them into the alcohol beaker. Add alcohol until it covers the bone fragments and hair. Soak and clean with alcohol for 8-12 minutes. Repeat this process 1-2 times until the alcohol is no longer obviously cloudy.

[0014] S4. Ultrasonic cleaning: Place the alcohol beaker into the ultrasonic cleaner and ultrasonically clean for 8-12 minutes. Then remove it and wipe the remaining water off the bone fragments and hair with a lint-free cloth.

[0015] S5. Place the crucible in the crucible, use tweezers to put the bone fragments and hair into the crucible, and then cover it with the lid.

[0016] S6. Drying in a drying oven: Place the drying tray in the drying oven and dry for 50-70 minutes. The drying temperature is 90-110℃.

[0017] S7. Place the crucible into the quartz tube of the equipment, unscrew the flow meter sealing door screw on the right side of the quartz tube, remove the sealing door, place the crucible into the quartz tube, and use the push-pull rod to push the crucible to the center position inside the equipment.

[0018] S8. Seal the equipment, install the flow meter sealing door, tighten the screws, and put the preparation equipment cover on and fasten the buckle.

[0019] S9. Connect the storage gas cylinder. Use a wrench to connect the storage gas cylinder pipeline to the vent valve on the equipment. Turn the storage gas cylinder valve switch until the flow rate is at its maximum and open the pressure regulating valve.

[0020] S10. Vacuum extraction: Connect the vacuum pump power supply, set the vacuum control to 1 Bar, turn valve one and valve two to the open position, the vacuum pump will start automatically and begin vacuuming. During the vacuuming process, observe the vacuum pressure gauge until the pointer points to "-0.1". At this time, the heating tube and the memory tube have reached a vacuum state, the vacuum pump will stop running automatically, and after the vacuuming is completed, close valve one and valve two.

[0021] S11, run the heating program, turn on the switch and heating program of the heating equipment, set the heating temperature to 800~1000℃, run the equipment for 25~40 minutes, observe the change of the vacuum pressure gauge, after the vacuum pressure gauge pointer is in the normal range, confirm that the equipment is in the heating state, at this time the equipment automatically controls the temperature, after 3~5 hours the equipment temperature drops to 280~350℃, when the equipment temperature is confirmed to be less than 300℃, open the furnace cover to accelerate heat dissipation;

[0022] S12. Gas extraction: When the equipment temperature is below 60℃, open the vent valve. Under the action of pressure difference, the gas in the quartz tube will enter the storage gas cylinder. Observe the pressure gauge. When the pressure gauge pointer rotates in the -0.1 direction until it stabilizes, it indicates that the gas extraction is complete and the gas has entered the storage gas cylinder. Immediately close the valve of the storage gas cylinder to make the valve of the storage gas cylinder have no flow.

[0023] S13. Remove the crucibles, remove the flow meter sealing door, and use the push-pull rod to slowly hook out all the crucibles one by one. Stop hooking when the crucibles are 1-2cm away from the quartz tube end and take them out by hand.

[0024] S14. Pressurize the storage cylinder: Disconnect the storage cylinder from the equipment and screw the storage cylinder's pipeline interface to the outlet of the pressurizing cylinder. Open the valve switch of the pressurizing cylinder and slowly rotate the pressure reducing valve of the pressurizing cylinder until the pointer points to 0.3 kg. Open the valve switch of the storage cylinder until the valve has the maximum flow rate. Open the pressure regulating valve. Under the action of pressure difference, the gas flows from the pressurizing cylinder to the storage cylinder. Wait for about 1 minute to make the pressure of the storage cylinder consistent with that of the pressurizing cylinder.

[0025] S15, the process of transferring the storage gas cylinder to CVD involves unscrewing the pipeline interface of the storage gas cylinder from the gas outlet of the stamping bottle and connecting it to the CVD equipment for growth.

[0026] By adopting the above technical solution

[0027] Optionally, in step S11, since the calcination of bone fragments and hair will produce gases such as CO2, the normal range of the pressure gauge pointer is -0.1 to -0.05.

[0028] By adopting the above technical solution

[0029] Optionally, in step S14, after the gas storage cylinder and the pressurization cylinder are connected at their outlets, soapy water is used to check for leaks: soapy water is applied to the outlet connection; if bubbles are generated, there is a leak; if no bubbles are generated, there is no leak.

[0030] By adopting the above technical solution

[0031] Optionally, in step S14, the pressure gauge value of the pressure regulating valve of the pressurized bottle stabilizes at 0.3 after pressurization is completed.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] 1. The gas produced by burning hair has a relatively high carbon content, and the extracted gas has a high purity when used as a carbon source, which is beneficial for preparing high-purity diamonds. Moreover, the process is relatively simple, requiring only the burning of hair without additional extraction or separation steps, making the preparation process more direct.

[0034] 2. Compared to extracting carbon source substances from hair, directly using the gas extracted from burning hair as a carbon source can reduce chemical processing and energy consumption in the production process, thereby reducing production costs. In addition, the amount of waste generated during the preparation process is relatively small, mainly consisting of ash after combustion, which can reduce the generation and treatment costs of waste.

[0035] 3. By utilizing waste or renewable hair to extract carbon sources, resources can be effectively utilized, waste can be reduced, and sustainable resource utilization can be achieved. Using hair-extracted gas as a carbon source to prepare diamonds can reduce the mining of natural resources and reduce the impact on the environment, thus making it more environmentally friendly and sustainable. Attached Figure Description

[0036] Figure 1 This is a perspective view of the diamond preparation apparatus of the present invention.

[0037] Figure 2 This is a front view of the diamond preparation apparatus in this invention.

[0038] Figure 3 This is a diagram illustrating the diamond preparation apparatus of the present invention.

[0039] In the diagram, 1. Equipment box; 2. Equipment cover; 3. Handle; 4. Lock; 5. Quartz tube; 6. Sealing door; 7. Vacuum pressure gauge; 8. Valve 2; 9. Valve 1; 10. Venting pipe; 11. Second pipe; 12. Control panel; 13. Sealing door screw; 14. Support frame. Detailed Implementation

[0040] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0041] An apparatus for preparing diamonds using hair-extracted gas as a carbon source includes an equipment box 1. An equipment cover 2 is rotatably connected to one side of the top wall of the equipment box 1. Support frames 14 are fixedly connected to both sides of the outer wall of the equipment box 1. Sealing doors 6 are fixedly connected to the top walls of the two support frames 14. Sealing door screws 13 are threadedly connected to the outer walls of the sealing doors 6. The two sealing doors 6 are connected to the same quartz tube 5. One end of the quartz tube 5 is connected to one end of a vacuum pressure gauge 7. The other end of the vacuum pressure gauge 7 is connected to a vent pipe 10 and a second pipe 11, respectively. Valves 9 and 8 are connected to the interior of the vent pipe 10 and the second pipe 11, respectively.

[0042] A handle 3 is fixedly connected to the front side of the outer wall of the equipment cover 2, a latch 4 is fixedly connected to one end of the front side of the outer wall of the equipment box 1, and a control board 12 is electrically connected to the middle of the front side of the outer wall of the equipment box 1.

[0043] This invention also provides a method for preparing diamonds using hair-extracted gas as a carbon source, comprising the following steps:

[0044] S1. Preparation before operation: Prepare the tools needed for odor extraction, including: tweezers, crucible, ethanol, 5g of bone fragments, hair, ash, and a gas storage bottle for storing the gas.

[0045] S2. Clean with pure water. Use tweezers to put the bone fragments and hair into a beaker of pure water. Add pure water until it covers the bone fragments and hair. Use tweezers to gently stir and clean. Repeat this process 5 times until the pure water is no longer obviously cloudy.

[0046] S3. Alcohol cleaning: Use tweezers to remove the bone fragments and hair from the pure water beaker and put them into the alcohol beaker. Add alcohol until it covers the bone fragments and hair. Soak and clean with alcohol for 10 minutes. Repeat this process twice until the alcohol is no longer obviously cloudy.

[0047] S4. Ultrasonic cleaning: Place the alcohol beaker into the ultrasonic cleaner and ultrasonically clean for 10 minutes. Then remove it and wipe the remaining water off the bone fragments and hair with a lint-free cloth.

[0048] S5. Place the crucible in the crucible, use tweezers to put the bone fragments and hair into the crucible, and then cover it with the lid.

[0049] S6. Drying in a drying oven: Place the drying tray in the drying oven and dry for 60 minutes. The drying temperature is 100℃.

[0050] S7. Place the crucible into the quartz tube of the equipment, unscrew the flow meter sealing door screw on the right side of the quartz tube, remove the sealing door, place the crucible into the quartz tube, and use the push-pull rod to push the crucible to the center position inside the equipment.

[0051] S8. Seal the equipment, install the flow meter sealing door, tighten the screws, and put the preparation equipment cover on and fasten the buckle.

[0052] S9. Connect the storage gas cylinder. Use a wrench to connect the storage gas cylinder pipeline to the vent valve on the equipment. Turn the storage gas cylinder valve switch until the flow rate is at its maximum and open the pressure regulating valve.

[0053] S10. Vacuum extraction: Connect the vacuum pump power supply, set the vacuum control to 1 Bar, turn valve one and valve two to the open position, the vacuum pump will start automatically and begin vacuuming. During the vacuuming process, observe the vacuum pressure gauge until the pointer points to "-0.1". At this time, the heating tube and the memory tube have reached a vacuum state, the vacuum pump will stop running automatically, and after the vacuuming is completed, close valve one and valve two.

[0054] S11, run the heating program, turn on the heating equipment and the heating program, set the heating temperature to 900℃, run the equipment for 30 minutes, observe the change of the vacuum pressure gauge, after the vacuum pressure gauge pointer is in the normal range, confirm that the equipment is in the heating state, at this time the equipment automatically controls the temperature, after 4 hours the equipment temperature drops to 300℃, when the equipment temperature is confirmed to be less than 300℃, open the furnace cover to accelerate heat dissipation. Because the calcination of bone fragments and hair will produce gases such as CO2, the normal range of the pressure gauge pointer is -0.1 to -0.05;

[0055] S12. Gas extraction: When the equipment temperature is below 60℃, open the vent valve. Under the action of pressure difference, the gas in the quartz tube will enter the storage gas cylinder. Observe the pressure gauge. When the pressure gauge pointer rotates in the -0.1 direction until it stabilizes, it indicates that the gas extraction is complete and the gas has entered the storage gas cylinder. Immediately close the valve of the storage gas cylinder to make the valve of the storage gas cylinder have no flow.

[0056] S13. Remove the crucibles, remove the flow meter sealing door, and use the push-pull rod to slowly hook out all the crucibles one by one. Stop hooking when the crucible is 2cm away from the quartz tube end and take it out by hand.

[0057] S14. Pressurizing the storage cylinder: Disconnect the storage cylinder from the equipment and screw the storage cylinder's pipeline interface to the outlet of the pressurizing cylinder. Open the valve switch of the pressurizing cylinder and slowly rotate the pressure reducing valve of the pressurizing cylinder until the pointer points to 0.3 kg. Open the valve switch of the storage cylinder until the valve reaches its maximum flow rate. Open the pressure regulating valve. Under the action of pressure difference, gas flows from the pressurizing cylinder to the storage cylinder. Wait for about 1 minute to make the pressure of the storage cylinder consistent with that of the pressurizing cylinder. After pressurization is completed, the pressure gauge value of the pressure regulating valve of the pressurizing cylinder will stabilize at 0.3. After the storage cylinder and the outlet of the pressurizing cylinder are connected, use soapy water to check for leaks: Apply soapy water to the outlet connection. If bubbles are generated, there is a leak; if no bubbles are generated, there is no leak.

[0058] S15, the process of transferring the storage gas cylinder to CVD involves unscrewing the pipeline interface of the storage gas cylinder from the gas outlet of the stamping bottle and connecting it to the CVD equipment for growth.

[0059] This invention provides an apparatus and method for preparing diamonds using hair-extracted gas as a carbon source. The gas produced by burning hair has a relatively high carbon content, resulting in high purity when used as a carbon source, which is beneficial for preparing high-purity diamonds. The process is simple, requiring only the burning of hair without additional extraction or separation steps, making the preparation process more direct. Compared to extracting carbon from hair, directly using hair combustion to extract gas reduces chemical processing and energy consumption during production, lowering production costs. Furthermore, the amount of waste generated during the preparation process is relatively small, mainly consisting of ash, thus reducing waste generation and disposal costs. Utilizing waste or renewable hair to extract carbon sources effectively utilizes resources, reduces waste, and contributes to sustainable resource utilization. Using hair-extracted gas as a carbon source for diamond preparation reduces the exploitation of natural resources and lowers environmental impact, making it more environmentally friendly and sustainable.

[0060] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An apparatus for preparing diamonds using hair-extracted gas as a carbon source, comprising an equipment housing (1), characterized in that: The equipment box (1) is rotatably connected to one side of the top wall of the equipment box (1). Support frames (14) are fixedly connected to both sides of the outer wall of the equipment box (1). Sealing doors (6) are fixedly connected to the top walls of the two support frames (14). Sealing door screws (13) are threadedly connected to the outer wall of the sealing door (6). The two sealing doors (6) are connected to the same quartz tube (5). One end of the quartz tube (5) is connected to one end of the vacuum pressure gauge (7). The other end of the vacuum pressure gauge (7) is connected to the venting pipe (10) and the second pipe (11). The venting pipe (10) and the second pipe (11) are connected to valve one (9) and valve two (8) respectively. The venting pipe (10) is used to connect with the storage gas cylinder to introduce the gas generated in the quartz tube (5) into the storage gas cylinder under the action of pressure difference to complete the storage. The second pipe (11) is a dual-purpose pipe, used to evacuate the quartz tube (5) when the valve (8) is opened, and / or to fill the quartz tube (5) with inert gas to replace or protect the reaction environment. The vacuum pressure gauge (7) is used to indicate the pressure status in the quartz tube (5).

2. The apparatus for preparing diamonds using hair-extracted gas as a carbon source according to claim 1, characterized in that, A handle (3) is fixedly connected to the front side of the outer wall of the equipment cover (2), a latch (4) is fixedly connected to one end of the front side of the outer wall of the equipment box (1), and a control board (12) is electrically connected to the middle of the front side of the outer wall of the equipment box (1).

3. A method for preparing diamonds using hair-extracted gas as a carbon source, applied to the apparatus for preparing diamonds using hair-extracted gas as a carbon source as described in claim 1, characterized in that, Includes the following steps: S1. Preparation before operation: Prepare the tools needed for odor extraction, including: tweezers, crucible, ethanol, 1-5g of bone fragments, hair, ash, and gas storage cylinders for storing the gas. S2. Wash with pure water. Use tweezers to put the bone fragments and hair into a beaker of pure water. Add pure water until the bone fragments and hair are submerged. Use tweezers to gently stir and wash. Repeat this process 2 to 5 times until the pure water is no longer obviously cloudy. S3. Alcohol cleaning: Use tweezers to remove the bone fragments and hair from the pure water beaker and put them into the alcohol beaker. Add alcohol until it covers the bone fragments and hair. Soak and clean with alcohol for 8-12 minutes. Repeat this process 1-2 times until the alcohol is no longer obviously cloudy. S4. Ultrasonic cleaning: Place the alcohol beaker into the ultrasonic cleaner and ultrasonically clean for 8-12 minutes. Then remove it and wipe the remaining water off the bone fragments and hair with a lint-free cloth. S5. Place the crucible in the crucible, use tweezers to put the bone fragments and hair into the crucible, and then cover it with the lid. S6. Drying in a drying oven: Place the drying tray in the drying oven and dry for 50-70 minutes. The drying temperature is 90-110℃. S7. Place the crucible into the quartz tube of the equipment, unscrew the flow meter sealing door screw on the right side of the quartz tube, remove the sealing door, place the crucible into the quartz tube, and use the push-pull rod to push the crucible to the center position inside the equipment. S8. Seal the equipment, install the flow meter sealing door, tighten the screws, and put the preparation equipment cover on and fasten the buckle. S9. Connect the storage gas cylinder. Use a wrench to connect the storage gas cylinder pipeline to the vent valve on the equipment. Turn the storage gas cylinder valve switch until the flow rate is at its maximum and open the pressure regulating valve. S10. Vacuum extraction and inert gas replacement protection: Turn on the vacuum pump power supply, set the vacuum control to 1 Bar, turn valve one and valve two to the open state, and perform vacuum extraction through the second pipeline. During the vacuum extraction process, observe the vacuum pressure gauge until the pointer points to "-0.1". The vacuum pump will automatically stop running. After the vacuum extraction is completed, close valve one and valve two, and / or fill the quartz tube with inert gas through the second pipeline to achieve replacement or protection of the reaction environment. S11, run the heating program, turn on the switch and heating program of the heating equipment, set the heating temperature to 800~1000℃, run the equipment for 25~40 minutes, observe the change of the vacuum pressure gauge, after the vacuum pressure gauge pointer is in the normal range, confirm that the equipment is in the heating state, at this time the equipment automatically controls the temperature, after 3~5 hours the equipment temperature drops to 280~350℃, when the equipment temperature is confirmed to be less than 300℃, open the furnace cover to accelerate heat dissipation; S12. Gas extraction: When the equipment temperature is below 60℃, open the vent valve. Under the action of pressure difference, the gas in the quartz tube will enter the storage gas cylinder. Observe the pressure gauge. When the pressure gauge pointer rotates in the -0.1 direction until it stabilizes, it means that the gas extraction is complete and has entered the storage gas cylinder. Immediately close the valve of the storage gas cylinder to make the storage gas cylinder valve have no flow. S13. Remove the crucibles, remove the flow meter sealing door, and use the push-pull rod to slowly hook out all the crucibles one by one. Stop hooking when the crucibles are 1-2cm away from the quartz tube end and take them out by hand. S14. Pressurize the storage cylinder: Disconnect the storage cylinder from the equipment and screw the pipeline interface of the storage cylinder to the outlet of the pressurizing cylinder. Open the valve switch of the pressurizing cylinder and slowly rotate the pressure reducing valve of the pressurizing cylinder until the pointer points to 0.3kg. Open the valve switch of the storage cylinder until the valve has the maximum flow rate. Open the pressure regulating valve. Under the action of pressure difference, the gas flows from the pressurizing cylinder to the storage cylinder. Wait for about 1 minute to make the pressure of the storage cylinder consistent with that of the pressurizing cylinder. S15, the process of transferring the storage gas cylinder to CVD involves unscrewing the pipeline interface of the storage gas cylinder from the outlet of the pressurized bottle and connecting it to the CVD equipment for growth.

4. The method for preparing diamonds using hair-extracted gas as a carbon source according to claim 3, characterized in that, In step S11, CO2 and other gases will be generated from the calcination of bone fragments and hair. The normal range of the pressure gauge pointer is -0.1 to -0.

05.

5. The method for preparing diamonds using hair-extracted gas as a carbon source according to claim 3, characterized in that, In step S14, after the gas storage cylinder and the pressurization cylinder are connected at their outlets, soapy water is used to check for leaks: soapy water is applied to the outlet connection; if bubbles are generated, there is a leak; if no bubbles are generated, there is no leak.

6. The method for preparing diamonds using hair-extracted gas as a carbon source according to claim 3, characterized in that, In step S14, the pressure gauge value of the pressure regulating valve of the pressurized bottle stabilizes at 0.3 after pressurization is completed.

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