Czochralski single crystal graphite heater with good stability

Abstract

The utility model discloses a czochralski single crystal graphite heater with good stability, which relates to the technical field of graphite heaters, and comprises a device main body, a connecting table is fixedly mounted at the bottom of the device main body, an adjusting main body is fixedly mounted at the top of the connecting table, the device main body comprises a heat preservation unit, and the connecting table comprises a moving unit. The adjusting body comprises an adjusting unit, and the heat preservation unit comprises a heating bottom end. Through the arrangement of the first heat preservation layer, the material containing bin, the first heat collection layer and the second heat collection layer, the problem that when an existing heater is used, when a spar material is machined in the device, internal heat is prone to being diffused to the outside, heat loss is too fast, and heating is unstable is solved; through the structural combination, in the using process of the heater, the interior of the heater can be stably stored through the stabilizing mechanism, so that the heating effect of the device on materials is enhanced, and the heating effect is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite heaters, in particular to a Czochralski single crystal graphite heater with good stability. Background Art

[0002] Graphite heater is a heating device for single crystal furnace. Graphite heater adopts isostatic graphite electric heating element, which has the advantages of high temperature resistance, easy processing and cheaper than tungsten, molybdenum and tantalum.

[0003] In the prior art, a Chinese patent document with publication number CN217600909U and publication date October 9, 2022 is proposed: a new type of direct-pull single crystal graphite heater, comprising a fixed plate and a graphite heater body, wherein the graphite heater body is fixed in the middle of the top of the fixed plate by four L-shaped support legs.

[0004] In order to solve the problem that the discharge pipe of the existing graphite heater is prone to crystallization or powder blockage, thus affecting the discharge, the existing technology uses an electric hydraulic cylinder arranged in an anti-blocking component to drive the U-shaped rod to move and make the circular scraper slide in the outlet pipe, so as to scrape the crystals or powder on the inner wall of the outlet pipe to remove the discharge, thereby facilitating the discharge of the discharge pipe and reducing the possibility of blockage caused by crystallization or powder. However, when the device processes the crystal material inside, the internal heat is easily diffused to the outside, resulting in excessive heat loss and unstable heating. Utility Model Content

[0005] The utility model aims to provide a Czochralski single crystal graphite heater with good stability to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0007] A Czochralski single crystal graphite heater with good stability comprises a device body, a connecting platform is fixedly installed at the bottom of the device body, an adjustment body is fixedly installed on the top of the connecting platform, the device body comprises a heat preservation unit, the connecting platform comprises a moving unit, and the adjustment body comprises an adjustment unit.

[0008] The insulation unit includes a heating bottom, an insulation layer 1, a material placement bin, a heat collection layer 1, and a heat collection layer 2; the movable unit includes a fixed base and a movable universal wheel; and the adjustment unit includes a connecting plate, a height limit frame, a ventilation mesh plate, and an electric push cylinder.

[0009] A further improvement of the technical solution of the utility model is that the bottom of the heating bottom end is fixedly mounted on the inner wall of the connecting platform, and the outer side of the heating bottom end is fixedly mounted on the inner side of the device body, the surface of the insulation layer one is fixedly mounted on the inner wall of the device body, and the bottom of the material placement bin overlaps the top of the heating bottom end.

[0010] By adopting the above technical solution, the connection platform is electrically connected to the external power supply through the power cord, and can be connected to the controller for control. The internal temperature is insulated by the insulation layer 1 inside the device body. The insulation layer 1 is made of calcium silicate board, which is an environmentally friendly, fire-resistant, high-strength, lightweight insulation material with excellent thermal insulation and fire-proof properties.

[0011] A further improvement of the technical solution of the utility model is that the top of the material placement bin is fixedly installed on the bottom of the connecting plate, and the outer side of the heat accumulation layer 1 is fixedly installed on the inner wall of the material placement bin.

[0012] By adopting the above technical solution, the material placement bin is heated by heating the bottom, so that the material in the material placement bin can be heated, and the temperature inside the material placement bin is gathered by combining the heat-gathering layer 1 and the heat-gathering layer 2, so that the internal temperature is more concentrated.

[0013] A further improvement of the technical solution of the utility model is that the outer side of the second heat-collecting layer is fixedly installed on the inner side of the first heat-collecting layer, and the inner side of the second heat-collecting layer is fixedly installed on the inner wall of the material placement bin.

[0014] Using the above technical solution, the heat-gathering layer one and the heat-gathering layer two are made of graphite polystyrene board. Graphite polystyrene board is a composite material composed of multiple layers of polystyrene board and graphite. This material has very high thermal stability and high temperature resistance. The maximum operating temperature of the graphite polystyrene board can reach about ℃.

[0015] A further improvement of the technical solution of the utility model is that the top of the fixed base is fixedly installed on the bottom of the connecting platform, and the top of the movable universal wheel is movably installed on the bottom of the fixed base.

[0016] By adopting the above technical solution, the movable universal wheels at the bottom of the fixed base are used to move on the ground, which makes it more convenient to move the position of the device.

[0017] A further improvement of the technical solution of the utility model is that the inner side of the connecting plate is slidably mounted on the surface of the height limiting frame, the bottom of the height limiting frame is fixedly mounted on the top of the connecting platform, and the surface of the height limiting frame is fixedly mounted on the inner wall of the device body.

[0018] By adopting the above technical solution, the connecting plate is lifted by an electric push cylinder, the material placement bin inside the device body is lifted upward, and then the material is placed inside.

[0019] A further improvement of the technical solution of the utility model is that the surface of the ventilation mesh plate is fixedly mounted on the inner wall of the adjustment body, the bottom of the electric pushing cylinder is fixedly mounted on the inner wall of the adjustment body, and the top of the electric pushing cylinder is fixedly mounted on the bottom of the connecting plate.

[0020] By adopting the above technical solution, the ventilation mesh plate can dissipate the heat generated when the electric push cylinder is in operation, and the material placement bin can be retracted into the device body by using the electric push cylinder.

[0021] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0022] 1. The utility model provides a CZ single crystal graphite heater with good stability. It has a first insulation layer, a material placement bin, a first heat collection layer and a second heat collection layer. It solves the problem that when the existing heater is in use, when the device processes the crystal material inside, the internal heat is easily diffused to the outside, resulting in excessive heat loss and unstable heating. The above structures are combined to achieve the internal stability of the heater during use by utilizing a stabilizing mechanism, thereby enhancing the heating effect of the device on the material and making the heating effect more stable.

[0023] 2. The utility model provides a straight-pull single crystal graphite heater with good stability. In order to have a connecting plate, a height limit frame, and an electric pushing cylinder, the utility model solves the problem that when the existing heater is in use, the internal temperature of the device is too high when the device is collecting single crystal stone materials and it is inconvenient to collect them. Through the combination of the above structures, the single crystal stone material can be actively pushed out of the device by the pushing mechanism during the use of the heater, which makes it more convenient to collect the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0025] Figure 2 This is a bottom view of the structure of the device of the utility model;

[0026] Figure 3 This is a schematic cross-sectional structural diagram of the device body of the utility model;

[0027] Figure 4 It is a schematic diagram of the cross-sectional structure of the adjustment body of the utility model.

[0028] In the figure: 1. Device body; 11. Heating bottom; 12. Insulation layer 1; 13. Material placement bin; 14. Heat collection layer 1; 15. Heat collection layer 2; 2. Connecting table; 21. Fixed base; 22. Moving universal wheel; 3. Adjusting body; 31. Connecting plate; 32. Height limit frame; 33. Ventilation mesh plate; 34. Electric push cylinder. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the embodiments:

[0030] Example 1

[0031] like Figure 1-4 As shown, the utility model provides a CZ single crystal graphite heater with good stability, including a device body 1, a connecting platform 2 is fixedly installed at the bottom of the device body 1, an adjustment body 3 is fixedly installed on the top of the connecting platform 2, the device body 1 includes a heat preservation unit, the connecting platform 2 includes a moving unit, the adjustment body 3 includes an adjustment unit, the heat preservation unit includes a heating bottom end 11, a heat preservation layer 12, a material placement bin 13, a heat collection layer 14, and a heat collection layer 2 15, the moving unit includes a fixed base 21, a moving universal wheel 22, the adjustment unit includes a connecting plate 31, a height limit frame 32, a ventilation mesh plate 33, and an electric extension cylinder 34, the bottom of the heating bottom end 11 is fixedly installed on the inner wall of the connecting platform 2, the connecting platform 2 is electrically connected to an external power supply through a power cord, and can be connected to a controller for control, and the outer side of the heating bottom end 11 is fixedly installed It is installed on the inner side of the device body 1, and the surface of the insulation layer 12 is fixedly installed on the inner wall of the device body 1. The insulation layer 12 inside the device body 1 is used to insulate the internal temperature. The insulation layer 12 is made of calcium silicate board, which is an environmentally friendly, fire-resistant, high-strength, lightweight insulation material with excellent insulation and fire resistance. The bottom of the material placement bin 13 is overlapped on the top of the heating bottom end 11, and the material placement bin 13 is heated by the heating bottom end 11, so that the material in the material placement bin 13 can be heated. The top of the material placement bin 13 is fixedly installed on the bottom of the connecting plate 31, and the outer side of the heat collection layer 14 is fixedly installed on the inner wall of the material placement bin 13. The temperature inside the material placement bin 13 is gathered through the combination of the heat collection layer 14 and the heat collection layer 2 15, so that the internal temperature is more concentrated.

[0032] Example 2

[0033] like Figure 1-4As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the outer side of the second heat-collecting layer 15 is fixedly installed on the inner side of the first heat-collecting layer 14, and the first heat-collecting layer 14 and the second heat-collecting layer 15 are made of graphite polystyrene board material. Graphite polystyrene board is a composite material composed of multiple layers of polystyrene board and graphite. This material has very high thermal stability and high temperature resistance. The maximum operating temperature of the graphite polystyrene board can reach about 200°C, and the inner side of the second heat-collecting layer 15 is fixedly installed on the inner wall of the material placement bin 13, the top of the fixed base 21 is fixedly installed on the bottom of the connecting platform 2, and the top of the movable universal wheel 22 is movably installed on the bottom of the fixed base 21. The movable universal wheel 22 at the bottom of the fixed base 21 is used to move on the ground, which is more convenient for displacing the position of the device.

[0034] Example 3

[0035] like Figure 1-4 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, the inner side of the connecting plate 31 is slidably mounted on the surface of the height limiting frame 32, the bottom of the height limiting frame 32 is fixedly mounted on the top of the connecting platform 2, and the surface of the height limiting frame 32 is fixedly mounted on the inner wall of the device body 1, and the connecting plate 31 is lifted by the electric pushing cylinder 34, and the material placement bin 13 on the inner side of the device body 1 is lifted upward, and then the material is placed inside, and the surface of the ventilation mesh plate 33 is fixedly mounted on the inner wall of the adjustment body 3 all around, and the bottom of the electric pushing cylinder 34 is fixedly mounted on the inner wall of the adjustment body 3, and the ventilation mesh plate 33 can evacuate the heat generated when the electric pushing cylinder 34 is in operation, and the material placement bin 13 can be retracted into the device body 1 by using the electric pushing cylinder 34, and the top of the electric pushing cylinder 34 is fixedly mounted on the bottom of the connecting plate 31.

[0036] The working principle of the CZ single crystal graphite heater with good stability is described in detail below.

[0037] like Figure 1-4 As shown, the movable universal wheel 22 at the bottom of the fixed base 21 is used to move on the ground, which makes it more convenient to displace the position of the device. The connecting plate 31 is lifted by the electric pushing cylinder 34, and the material placement bin 13 inside the device body 1 is lifted upward, and then the material is placed inside. The material placement bin 13 is retracted into the device body 1 by the electric pushing cylinder 34, and the material placement bin 13 is heated by heating the bottom end 11, so that the material in the material placement bin 13 is heated, and then the temperature inside the material placement bin 13 is gathered by combining the heat collection layer 14 and the heat collection layer 2 15, so that the internal temperature is more concentrated, and the internal temperature is insulated by the heat preservation layer 12 inside the device body 1.

[0038] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A Czochralski single crystal graphite heater with good stability, comprising a device body (1), characterized in that: A connecting platform (2) is fixedly mounted on the bottom of the device body (1), an adjusting body (3) is fixedly mounted on the top of the connecting platform (2), the device body (1) comprises a heat preservation unit, the connecting platform (2) comprises a moving unit, and the adjusting body (3) comprises an adjusting unit; The heat preservation unit comprises a heating bottom end (11), a heat preservation layer 1 (12), a material placement bin (13), a heat collection layer 1 (14), and a heat collection layer 2 (15); the moving unit comprises a fixed base (21) and a movable universal wheel (22); and the adjustment unit comprises a connecting plate (31), a height limiting frame (32), a ventilation mesh plate (33), and an electric push cylinder (34).

2. A Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The bottom of the heating bottom end (11) is fixedly mounted on the inner wall of the connecting platform (2), and the outer side of the heating bottom end (11) is fixedly mounted on the inner side of the device body (1), the surface of the thermal insulation layer 1 (12) is fixedly mounted on the inner wall of the device body (1), and the bottom of the material placement bin (13) overlaps the top of the heating bottom end (11).

3. A Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The top of the material storage bin (13) is fixedly mounted on the bottom of the connecting plate (31), and the outer side of the heat collecting layer 1 (14) is fixedly mounted on the inner wall of the material storage bin (13).

4. A Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The outer side of the second heat-collecting layer (15) is fixedly mounted on the inner side of the first heat-collecting layer (14), and the inner side of the second heat-collecting layer (15) is fixedly mounted on the inner wall of the material placement bin (13).

5. The Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The top of the fixed base (21) is fixedly mounted on the bottom of the connecting platform (2), and the top of the movable universal wheel (22) is movably mounted on the bottom of the fixed base (21).

6. The Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The inner side of the connecting plate (31) is slidably mounted on the surface of the height limiting frame (32), the bottom of the height limiting frame (32) is fixedly mounted on the top of the connecting platform (2), and the surface of the height limiting frame (32) is fixedly mounted on the inner wall of the device body (1).

7. The Czochralski single crystal graphite heater with good stability according to claim 1, characterized in that: The surface of the ventilation mesh plate (33) is fixedly mounted on the inner wall of the adjustment body (3) on all sides, the bottom of the electric push-extension cylinder (34) is fixedly mounted on the inner wall of the adjustment body (3), and the top of the electric push-extension cylinder (34) is fixedly mounted on the bottom of the connecting plate (31).

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