Novel graphite composite sapphire thermal field

Abstract

The utility model discloses a novel graphite composite sapphire thermal field, which relates to the technical field of sapphire crystal growth, and comprises a furnace cylinder and a crucible arranged in the furnace cylinder, a heating mechanism is arranged in the furnace cylinder, the crucible is positioned in the heating mechanism, a zirconia brick is arranged at the bottom of the furnace cylinder, a pot body supporting block is arranged in the zirconia brick, and the pot body supporting block is arranged in the furnace cylinder. The top of the pot body supporting block is attached and fixed to the crucible; a group of holes are formed in the pot body supporting block, a gas transmission mechanism is arranged in the pot body supporting block, the top end of the gas transmission mechanism is located in the heating mechanism, and the top of the zirconia brick is fixedly connected with the heating mechanism. Through the arrangement of a graphite hard felt cylinder and a tungsten cylinder which are arranged in the heating mechanism, heat dissipated by the heater can be effectively reserved, and through the arrangement of the gas transmission mechanism, the equipment can be more convenient to transmit hot flow gas or processing gas, so that the maneuverability of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sapphire crystal growth, in particular to a novel graphite composite sapphire thermal field. Background Art

[0002] A gemstone thermal field is a thermal processing device for gemstones that can change the color of gemstones or remove structural water, and can also change the crystal structure of gemstones. During the processing of sapphires, it is often necessary to process sapphires through a gemstone thermal field. However, the existing sapphire thermal field has some shortcomings, such as:

[0003] Application number: CN202121455159.4 is a sapphire thermal field structure. While providing thermal insulation performance, the device can provide an auxiliary thermal field gradient through a secondary heater; through the synergistic effect of the main and secondary heaters, the thermal field gradient for the growth of large kilogram-level crystals can be met, and the economic applicability of the sapphire thermal field structure can be improved. However, in actual use, the device has difficulty in transmitting hot flow gas or other processing gas to process sapphire, which may increase heat conduction, cause excessive heat flow consumption, and make it difficult to relieve gas pressure, thereby reducing the efficiency of the device.

[0004] Therefore, we proposed a new type of graphite composite sapphire thermal field to solve the above problems. Utility Model Content

[0005] The purpose of the present utility model is to provide a novel graphite composite sapphire thermal field to solve the problem raised in the above-mentioned background technology that most sapphire processing thermal fields on the market are difficult to transmit hot flow gas or other processing gas to process sapphire, which may increase heat conduction, cause excessive heat flow consumption, and be difficult to relieve gas pressure, thereby reducing the use efficiency of the equipment.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a novel graphite composite sapphire heat field, comprising a furnace drum and a crucible arranged inside the furnace drum, a heating mechanism being provided inside the furnace drum, and the crucible being located inside the heating mechanism, and zirconia bricks being provided at the bottom of the furnace drum, a pot body support block being provided inside the zirconia brick, and the top of the pot body support block being fitted and fixed to the crucible;

[0007] A group of holes are provided inside the pot body support block, and an air transmission mechanism is provided inside the pot body support block, and the top of the air transmission mechanism is located inside the heating mechanism, and the top of the zirconia brick is fixedly connected to the heating mechanism.

[0008] The arrangement of the graphite hard felt cylinder and the tungsten cylinder inside the heating mechanism can effectively retain the heat dissipated by the heater, and the arrangement of the gas transmission mechanism can make the device more convenient in transmitting hot flow gas or processing gas, thereby increasing the maneuverability of the device.

[0009] As the preferred technical solution of the present invention, the bottom of the furnace drum is fitted with zirconia bricks, and the heating mechanism includes a graphite hard felt cylinder, and a tungsten cylinder is provided inside the graphite hard felt cylinder, a heater is provided inside the tungsten cylinder, and the crucible is located inside the heater.

[0010] The adoption of the above technical solution can effectively reduce heat conduction and energy consumption, and through the provision of the graphite hard felt cylinder and the tungsten cylinder, the thermal insulation performance of the equipment can be increased, the service life can be extended, and the unit crystal growth cost can be low.

[0011] As the preferred technical solution of the present invention, the graphite hard felt cylinder is provided with graphite soft felt, and an upper insulation block is provided on the top of the heater, and a middle insulation block is provided on the bottom of the upper insulation block, and a bottom insulation block is provided on the bottom of the heater, and the top of the bottom insulation block is in contact with the heater.

[0012] The adoption of the above technical solution can make the heating mechanism more stable when connected to the furnace drum, thereby increasing the firmness of the equipment.

[0013] As the preferred technical solution of the present invention, the bottom of the bottom insulation block is fitted with zirconia bricks, and the air transmission mechanism includes an inflation pipe, and the inflation pipe is located inside the pot body support block, and the bottom of the inflation pipe is connected to a first flow meter.

[0014] The adoption of the above technical solution enables the device to observe the transmission quantity through the first flow meter when transmitting hot flow gas or process gas, thereby increasing the observability of the device.

[0015] As a preferred technical solution of the present utility model, the outside of the inflation pipeline is connected to the air delivery box, and a driving motor is provided at the front end of the air delivery box, and the right end of the driving motor is connected to a first bevel gear, and the top end of the first bevel gear is meshed with a second bevel gear, and the top and bottom of the second bevel gear are provided with a ratchet group, and the bottom of the second bevel gear is connected to the first drive shaft through the ratchet group, and the bottom of the first drive shaft is connected to a peristaltic pump mechanism, and the peristaltic pump mechanism is connected to the inflation pipeline;

[0016] The peristaltic pump mechanism includes a peristaltic pump rod, which is connected to the first drive shaft, and a peristaltic pump shell is provided on the outside of the peristaltic pump rod. The inflation pipe is located between the peristaltic pump rod and the peristaltic pump shell at the bottom.

[0017] The adoption of the above technical solution enables the peristaltic pump mechanism to better control the exhaust speed of the inflation pipe, thereby increasing the controllability of the device.

[0018] As an optimal technical solution of the present invention, the ratchet group includes a first ratchet, and a second ratchet is engaged at the bottom of the first ratchet, a spring shaft is provided at the bottom of the second ratchet, and the direction of the ratchet group at the bottom of the second bevel gear is opposite to the direction of the ratchet group at the top of the second bevel gear.

[0019] The adoption of the above technical solution can make it more convenient for the second bevel gear to control the first drive shaft or the second drive shaft.

[0020] As a preferred technical solution of the present invention, the top of the second bevel gear is connected to the second drive shaft through a ratchet set, and the second drive shaft is fixedly connected to the peristaltic pump rod at the top, and another set of peristaltic pump housings is provided on the outside of the peristaltic pump rod at the top;

[0021] An exhaust pipe is provided at the top of the furnace, and a second flow meter is connected to the top of the exhaust pipe. The middle end of the exhaust pipe is located between the peristaltic pump rod and the peristaltic pump shell at the top of the second drive shaft, and the exhaust pipe is connected to the gas box.

[0022] The adoption of the above technical solution enables the device to observe the degree of pressure relief through the second flow meter when relief is being performed, thereby increasing the observability of the device and making the device more convenient when relief is being performed.

[0023] Compared with the prior art, the present invention has the following advantages: the arrangement of the graphite hard felt cylinder and the tungsten cylinder inside the heating mechanism can effectively retain the heat dissipated by the heater, and the arrangement of the gas transmission mechanism can make the device more convenient when transmitting hot gas or processing gas, thereby increasing the maneuverability of the device;

[0024] Furthermore, by providing a first flow meter at the bottom of the gas transmission mechanism, the transmission quantity can be observed through the first flow meter when the device transmits hot gas or process gas, thereby increasing the observability of the device;

[0025] Furthermore, by setting up the second flow meter and the exhaust pipe, the pressure relief degree of the device can be observed through the second flow meter when the device is relieving pressure, thereby increasing the observability of the device and making the device more convenient when relieving pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the front elevation structure of the present utility model;

[0027] Figure 2 This is a schematic diagram of the front cross-sectional structure of the present utility model;

[0028] Figure 3 This is a schematic diagram of the vertical cross-sectional structure of the utility model;

[0029] Figure 4 This is a schematic diagram of the elevation structure of Example 2 of the present utility model;

[0030] Figure 5 This is a schematic elevational structural diagram of a transmission mechanism according to Example 2 of the present utility model;

[0031] Figure 6 This is a schematic elevational structural diagram of a drive motor according to Example 2 of the present utility model;

[0032] Figure 7 For embodiment 2 of the present utility model Figure 6 A schematic diagram of the enlarged structure at point A;

[0033] Figure 8 This is a schematic diagram of the elevation structure of the peristaltic pump housing of Example 2 of the present utility model.

[0034] In the figure: 1. Furnace drum; 2. Zirconia brick; 3. Pot support block; 4. Graphite hard felt cylinder; 5. Tungsten cylinder; 6. Heater; 7. Crucible; 8. Upper insulation block; 9. Middle insulation block; 10. Bottom insulation block; 11. Inflating pipe; 12. First flow meter; 13. Second flow meter; 14. Exhaust pipe; 15. Gas box; 16. Drive motor; 17. First bevel gear; 18. Second bevel gear; 19. First ratchet; 20. Second ratchet; 21. Spring shaft; 22. First drive shaft; 23. Second drive shaft; 24. Peristaltic pump rod; 25. Peristaltic pump housing. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] Example 1:

[0037] In order to solve the problem of difficulty in transmitting gas in the insulation box in the prior art, the following solution is disclosed. Figure 1-3 The utility model provides a technical solution: a new type of graphite composite sapphire heat field, comprising a furnace barrel 1, and a crucible 7 arranged inside the furnace barrel 1, a heating mechanism is provided inside the furnace barrel 1, and the crucible 7 is located inside the heating mechanism, and zirconia bricks 2 are provided at the bottom of the furnace barrel 1, a pot body support block 3 is provided inside the zirconia brick 2, and the top of the pot body support block 3 is fixed to the crucible 7;

[0038] A group of holes are provided inside the pot body support block 3, and an air transmission mechanism is provided inside the pot body support block 3, and the top of the air transmission mechanism is located inside the heating mechanism, and the top of the zirconia brick 2 is fixedly connected to the heating mechanism;

[0039] The bottom of the furnace drum 1 is fitted with the zirconia bricks 2, and the heating mechanism includes a graphite hard felt drum 4, and a tungsten drum 5 is provided inside the graphite hard felt drum 4, a heater 6 is provided inside the tungsten drum 5, and a crucible 7 is located inside the heater 6;

[0040] The graphite hard felt cylinder 4 is provided with graphite soft felt, and an upper insulation block 8 is provided on the top of the heater 6, and a middle insulation block 9 is provided on the bottom of the upper insulation block 8. A bottom insulation block 10 is provided on the bottom of the heater 6, and the top of the bottom insulation block 10 is in contact with the heater 6;

[0041] The bottom of the bottom insulation block 10 is in contact with the zirconia brick 2 , and the air transmission mechanism includes an air charging pipe 11 , and the air charging pipe 11 is located inside the pot body support block 3 , and the bottom of the air charging pipe 11 is connected to a first flow meter 12 .

[0042] Example 2:

[0043] In this embodiment, another air transmission method is disclosed, which is different from the first embodiment and can perform pressure relief work, specifically as follows Figure 4-8 As shown, the difference between this embodiment and Example 1 is that the outer side of the inflation pipe 11 is connected to the air delivery box 15, and the front end of the air delivery box 15 is provided with a drive motor 16, and the right end of the drive motor 16 is connected to a first bevel gear 17, and the top of the first bevel gear 17 is engaged with a second bevel gear 18, the top and bottom of the second bevel gear 18 are provided with a ratchet group, and the bottom of the second bevel gear 18 is connected to the first drive shaft 22 through the ratchet group, and the bottom of the first drive shaft 22 is connected to a peristaltic pump mechanism, and the peristaltic pump mechanism is connected to the inflation pipe 11;

[0044] The peristaltic pump mechanism includes a peristaltic pump rod 24, which is connected to the first drive shaft 22, and a peristaltic pump housing 25 is provided on the outside of the peristaltic pump rod 24. The inflation pipe 11 is located between the peristaltic pump rod 24 and the peristaltic pump housing 25 at the bottom.

[0045] The ratchet assembly includes a first ratchet 19, and a second ratchet 20 is meshed at the bottom of the first ratchet 19. A spring shaft 21 is provided at the bottom of the second ratchet 20. The ratchet assembly at the bottom of the second bevel gear 18 faces in the opposite direction to the ratchet assembly at the top of the second bevel gear 18.

[0046] The top of the second bevel gear 18 is connected to the second drive shaft 23 through a ratchet set, and the second drive shaft 23 is fixedly connected to the peristaltic pump rod 24 at the top, and another set of peristaltic pump housings 25 are provided on the outside of the peristaltic pump rod 24 at the top;

[0047] An exhaust pipe 14 is provided at the top of the furnace drum 1, and a second flow meter 13 is connected to the top of the exhaust pipe 14. The middle end of the exhaust pipe 14 is located between the peristaltic pump rod 24 and the peristaltic pump housing 25 at the top of the second drive shaft 23. The exhaust pipe 14 is connected to the gas delivery box 15.

[0048] When the inflation pipe 11 is transmitting gas, the drive motor 16 can be started to rotate forward, so that the drive motor 16 drives the first bevel gear 17 to rotate, thereby causing the first bevel gear 17 to drive the second bevel gear 18 to rotate forward, thereby causing the ratchet group at the bottom of the second bevel gear 18 to mesh, that is, the first ratchet 19 is meshed with the second ratchet 20, so that the second ratchet 20 drives the first driving shaft 22 to rotate through the spring shaft 21, and because the ratchet group at the top of the second bevel gear 18 and the ratchet group at the bottom of the second bevel gear 18 face opposite directions, the ratchet group at the top of the second bevel gear 18 will be disengaged, that is, the first ratchet 19 is disengaged from the second ratchet 20, and the second ratchet 20 retreats under the drive of the spring shaft 21, so that the second bevel gear 18 cannot drive the second driving shaft 23 to rotate;

[0049] When the second bevel gear 18 drives the first drive shaft 22 to rotate, the first drive shaft 22 drives the peristaltic pump rod 24 to rotate, so that the peristaltic pump rod 24 and the peristaltic pump housing 25 squeeze the inflation pipe 11, so that the inflation pipe 11 transmits the inert gas argon inside the gas box 15 to the inside of the furnace drum 1;

[0050] When the drive motor 16 drives the second bevel gear 18 to rotate in the opposite direction, the second bevel gear 18 will be disconnected from the first drive shaft 22, so that the second bevel gear 18 drives the second drive shaft 23 to rotate, so that the second drive shaft 23 drives the top peristaltic pump rod 24 to rotate, so that the top peristaltic pump rod 24 and the peristaltic pump shell 25 squeeze the exhaust pipe 14, so that the exhaust pipe 14 transmits the air pressure inside the furnace 1 to the exhaust box inside the gas transmission box 15 to complete the pressure relief work.

[0051] Working Principle: When using the new graphite composite sapphire thermal field, first connect the device power supply to the power grid, then place the sapphire workpiece into the crucible 7, so that the heating mechanism performs thermal processing on the sapphire workpiece inside the crucible 7;

[0052] When the heating mechanism is in operation, the heater 6 will dissipate heat by connecting to an external power source, so that the heater 6 heats the outside of the crucible 7, and the graphite hard felt tube 4 and the tungsten tube 5 will seal the heat inside the furnace tube 1, so that the temperature inside the furnace tube 1 rises. At the same time, the upper insulation block 8, the middle insulation block 9 and the bottom insulation block 10 will also insulate the top and bottom of the furnace tube 1. When the equipment is transmitting inert gas argon or other processing gas, the inert gas argon can be transmitted to the inside of the heating mechanism through the inflation pipe 11 through the pot body support block 3.

[0053] Thereby completing a series of tasks, the contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0054] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A novel graphite composite sapphire thermal field, comprising a furnace barrel (1) and a crucible (7) arranged inside the furnace barrel (1), characterized in that: A heating mechanism is provided inside the furnace drum (1), and the crucible (7) is located inside the heating mechanism. Zirconia bricks (2) are provided at the bottom of the furnace drum (1), a pot body support block (3) is provided inside the zirconia bricks (2), and the top of the pot body support block (3) is fitted and fixed to the crucible (7); A group of holes are provided inside the pot body support block (3), and an air transmission mechanism is provided inside the pot body support block (3), and the top of the air transmission mechanism is located inside the heating mechanism, and the top of the zirconia brick (2) is fixedly connected to the heating mechanism.

2. The novel graphite composite sapphire thermal field according to claim 1, characterized in that: The bottom of the furnace drum (1) is in contact with the zirconia bricks (2), and the heating mechanism comprises a graphite hard felt drum (4), a tungsten drum (5) is provided inside the graphite hard felt drum (4), a heater (6) is provided inside the tungsten drum (5), and a crucible (7) is located inside the heater (6).

3. The novel graphite composite sapphire thermal field according to claim 2, characterized in that: The graphite hard felt cylinder (4) is provided with graphite soft felt, and an upper insulation block (8) is provided on the top of the heater (6), and a middle insulation block (9) is provided on the bottom of the upper insulation block (8), and a bottom insulation block (10) is provided on the bottom of the heater (6), and the top of the bottom insulation block (10) is in contact with the heater (6).

4. The novel graphite composite sapphire thermal field according to claim 3, characterized in that: The bottom of the bottom insulation block (10) is in contact with the zirconia brick (2), and the air transmission mechanism includes an air charging pipe (11), and the air charging pipe (11) is located inside the pot body support block (3), and the bottom of the air charging pipe (11) is connected to a first flow meter (12).

5. The novel graphite composite sapphire thermal field according to claim 4, characterized in that: The outer side of the inflation pipe (11) is connected to the air delivery box (15), and the front end of the air delivery box (15) is provided with a driving motor (16), and the right end of the driving motor (16) is connected to a first bevel gear (17), and the top end of the first bevel gear (17) is meshed with a second bevel gear (18), the top and bottom of the second bevel gear (18) are both provided with a ratchet group, and the bottom of the second bevel gear (18) is connected to the first driving shaft (22) through the ratchet group, and the bottom of the first driving shaft (22) is connected to a peristaltic pump mechanism, and the peristaltic pump mechanism is connected to the inflation pipe (11); The peristaltic pump mechanism includes a peristaltic pump rod (24), which is connected to the first drive shaft (22), and a peristaltic pump housing (25) is provided outside the peristaltic pump rod (24), and the inflation pipe (11) is located between the peristaltic pump rod (24) and the peristaltic pump housing (25) at the bottom.

6. The novel graphite composite sapphire thermal field according to claim 5, characterized in that: The ratchet group comprises a first ratchet (19), and the bottom of the first ratchet (19) is meshed with a second ratchet (20), the bottom of the second ratchet (20) is provided with a spring shaft (21), and the direction of the ratchet group at the bottom of the second bevel gear (18) is opposite to the direction of the ratchet group at the top of the second bevel gear (18).

7. The novel graphite composite sapphire thermal field according to claim 5, characterized in that: The top of the second bevel gear (18) is connected to the second drive shaft (23) through a ratchet set, and the second drive shaft (23) is fixedly connected to the peristaltic pump rod (24) at the top, and another set of peristaltic pump housings (25) is provided on the outside of the peristaltic pump rod (24) at the top; An exhaust pipe (14) is provided at the top of the furnace drum (1), and a second flow meter (13) is connected to the top of the exhaust pipe (14). The middle end of the exhaust pipe (14) is located between the peristaltic pump rod (24) and the peristaltic pump housing (25) at the top of the second drive shaft (23), and the exhaust pipe (14) is connected to the gas transmission box (15).

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