Device for removing floating crystal

Abstract

The utility model provides a device for removing floating crystals, which comprises a crucible, a crystal growing chamber and a crystal growing chamber, the crucible cover is provided with an operation hole, and the operation hole is communicated with the growth cavity; the auxiliary assembly comprises a control part and a salvage part, one end of the control part is connected with the salvage part, the end, away from the salvage part, of the control part penetrates through the operation hole and partially protrudes out of the crucible cover, and the control part drives the salvage part to move in the growth cavity of the crucible. The device adopts a physical salvage mode to salvage the floating crystal, is simple in structure, can avoid introducing redundant impurities, improves the floating crystal removal effect, and avoids damaging the growing crystal.

Description

A device for removing floating crystals Technical Field

[0001] This utility model relates to the field of crystal growth technology, and in particular to a device for removing floating crystals. Background Technology

[0002] The top-seeded crystal method is a crystal growth technique for growing high-quality single crystals from a solution or melt. Its core lies in using a seed crystal (i.e., an existing crystal) as the starting point for growth. The seed crystal is fixed to the top of the solution or melt in the growth apparatus using a support device (such as a seed crystal rod), ensuring contact between the seed crystal and the solution or melt. By controlling the crystal growth conditions, the crystal gradually grows based on the seed crystal. Once growth is complete, the grown crystal is slowly pulled out of the solution or melt by raising the seed crystal rod.

[0003] During crystal growth in a crystal furnace, factors such as the reaction atmosphere, raw material ratio, or errors in parameter control can cause floating crystals to form on the surface of the molten raw material. These floating crystals interfere with the growth process, reducing the success rate of crystal growth. Furthermore, as the floating crystals grow, they may collide with the growing crystal, leading to internal defects, affecting crystal quality, and in severe cases, causing the crystal to break and fall off, resulting in growth failure.

[0004] Conventional methods for removing floating crystals include using high-energy lasers. However, the melt is not static as it rotates with the seed crystal rod, and the floating crystals constantly change position with the flow of the melt. Excessive laser energy can damage the growing crystal, while insufficient energy cannot remove the floating crystals, leading to difficulties in practical operation.

[0005] Therefore, an apparatus for removing floating crystals is provided, which uses a physical retrieval method to retrieve floating crystals without the need for additional circuits or heating devices, thus avoiding the introduction of additional impurities, while improving the removal effect of floating crystals and avoiding damage to growing crystals. Summary of the Invention

[0006] One or more embodiments of this utility model provide an apparatus for removing floating crystals, comprising: a crucible having a growth chamber inside; a crucible cover having an operation hole communicating with the growth chamber; and an auxiliary component including a control unit and a retrieval unit, one end of the control unit being connected to the retrieval unit, the other end of the control unit away from the retrieval unit passing through the operation hole and partially protruding from the crucible cover, the control unit driving the retrieval unit to move within the growth chamber of the crucible.

[0007] In some embodiments, the retrieval unit includes a retrieval trough and a plurality of interception holes, wherein the opening of the retrieval trough faces the crucible lid.

[0008] In some embodiments, the interception holes are distributed on the periphery and / or bottom of the retrieval trough.

[0009] In some embodiments, the diameter of the interception hole is 1-3 mm.

[0010] In some embodiments, the cross-section of the operating hole on the crucible lid increases along the top of the crucible lid toward the growth chamber.

[0011] In some embodiments, the crucible lid is provided with at least two of the operating holes, and one end of the control unit away from the retrieval unit passes through one of the at least two operating holes.

[0012] In some embodiments, the control unit includes a connecting rod and a control rod, one end of the connecting rod being connected to the retrieval unit, and the other end of the connecting rod being detachably connected to the control rod.

[0013] In some embodiments, the control unit is provided with at least one scale, and the port of the operation hole is provided with an indicator.

[0014] In some embodiments, a protective sleeve is provided at the end of the operating hole away from the growth chamber, and the connecting rod passes through the protective sleeve.

[0015] In some embodiments, the protective sleeve is annular and made of flexible material. The outer ring of the protective sleeve is fixedly connected to the operating hole, and the connecting rod passes through the inner ring of the protective sleeve and is fixedly connected to the inner ring.

[0016] In some embodiments, the diameter of the operating hole in the first direction is greater than the diameter of the connecting rod in the first direction; when the protective sleeve is in a taut state, the height of the first position where the connecting rod connects to the inner ring is different from the height of the second position where the outer ring connects to the operating hole.

[0017] In some embodiments, the retrieval unit includes an opening and closing section located on the side of the retrieval unit away from the opening; the control unit includes a traction channel and a traction line, the control unit is a hollow structure, the traction line passes through the traction channel formed by the hollow structure of the control unit and is fixedly connected to the opening and closing section; the crucible also includes a storage box located in the growth chamber and connected to the crucible. Attached Figure Description

[0018] This specification will be further described by way of exemplary embodiments, which will be described in detail with reference to the accompanying drawings. These embodiments are not limiting; in these embodiments, the same reference numerals denote the same structures, wherein:

[0019] Figure 1 is a schematic diagram of the structure of an apparatus for removing floating crystals according to some embodiments of this specification;

[0020] Figure 2 is a schematic diagram of the structure of an auxiliary component according to some embodiments of this specification;

[0021] Figure 3 is a partial structural schematic diagram of the apparatus for removing floating crystals according to some embodiments of this specification at the operating hole;

[0022] Figure 4 is a partial structural schematic diagram of the apparatus for removing floating crystals according to some other embodiments of this specification at the operating hole;

[0023] Figure 5 is a top view of a protective sleeve according to some embodiments of this specification;

[0024] Figure 6 is a schematic diagram of the structure of the protective sleeve according to some embodiments of this specification;

[0025] Figure 7 is a schematic diagram of the structure of an apparatus for removing floating crystals according to some other embodiments of this specification.

[0026] The components include: 1. Crucible; 11. Growth chamber; 12. Storage box; 2. Crucible lid; 21. Operating hole; 211. Indicator; 22. Protective sleeve; 221. Outer ring; 222. Inner ring; 3. Auxiliary components; 31. Control unit; 311. Connecting rod; 312. Control rod; 313. Scale; 314. Traction channel; 315. Traction line; 32. Salvage unit; 321. Salvage trough; 322. Interception hole; 323. Opening and closing unit. Detailed Implementation

[0027] To more clearly illustrate the technical solutions of the embodiments in this specification, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are merely some examples or embodiments of this specification. For those skilled in the art, these drawings can be applied to other similar scenarios without creative effort. Unless obvious from the context or otherwise specified, the same reference numerals in the drawings represent the same structures or operations.

[0028] As indicated in this specification, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.

[0029] Figure 1 is a schematic diagram of the structure of an apparatus for removing floating crystals according to some embodiments of this specification.

[0030] Some embodiments of this specification provide an apparatus for removing floating crystals, as shown in FIG1. ​​The apparatus includes: a crucible 1, the crucible 1 having a growth chamber 11 inside; a crucible cover 2, the crucible cover 2 having an operation hole 21 that communicates with the growth chamber 11; and an auxiliary component 3, including a control unit 31 and a retrieval unit 32. One end of the control unit 31 is connected to the retrieval unit 32, and the end of the control unit 31 away from the retrieval unit 32 passes through the operation hole 21 and partially protrudes from the crucible cover 2. The control unit 31 drives the retrieval unit 32 to move within the growth chamber 11 of the crucible 1.

[0031] Crucible 1 is used to grow the target crystal. In some embodiments, the target crystal can be a silicon carbide crystal, a diamond crystal, a silicon single crystal, or other crystals. Crucible 1 can be a graphite crucible for growing silicon carbide crystals, a platinum crucible for growing diamond crystals, a quartz crucible for growing silicon single crystals, etc. Crucible 1 can be used to hold the raw material solution or melt for crystal growth. In some embodiments, the shape and size of crucible 1 can be set according to requirements.

[0032] The growth chamber 11 is a cavity within the crucible 1 that provides a growth environment for the crystal. In some embodiments, the growth environment includes a thermal environment, etc.

[0033] The crucible lid 2 is used to cover the crucible 1 and maintain a stable internal environment in the growth chamber 11. In some embodiments, the crucible lid 2 covers the opening of the crucible 1, thereby preventing external impurities from entering the growth chamber 11 and maintaining the temperature and atmosphere inside the growth chamber 11.

[0034] In some embodiments, the crucible lid 2 may be made of the same material as the crucible 1 or other high-temperature resistant materials.

[0035] The operating hole 21 is a hole formed in the crucible lid. In some embodiments, the auxiliary component 3 is formed in the crucible lid and enters the growth chamber 11 through the operating hole 21.

[0036] To meet the growth requirements during the crystal process, the crucible lid is typically provided with an observation hole. In some embodiments, the operation hole can be an existing observation hole.

[0037] In some embodiments, the cross-section of the operating hole 21 on the crucible cover 2 increases along the top of the crucible cover 2 toward the growth chamber 11.

[0038] For example, as shown in Figure 1, the cross-section of the operation hole 21 is trapezoidal, and the side of the trapezoid closest to the growth chamber 11 is the long side.

[0039] In some embodiments of this specification, by providing an operating hole 21 with a gradually increasing cross-section, the observation range can be increased when the operating hole 21 is used as an observation hole, and the auxiliary component 3 can obtain a larger operating movement space when it passes through the operating hole 21.

[0040] In some embodiments, at least two operating holes 21 are provided on the crucible lid 2, and one end of the control unit 31 away from the retrieval unit 32 passes through one of the at least two operating holes 21.

[0041] In some embodiments, the crucible cover 2 is provided with at least two operating holes 21. One of the two operating holes 21 can be used to observe the internal conditions of the growth chamber 11 (such as the growth of the crystal and the retrieval of the floating crystal). When assisting in the retrieval of the floating crystal, the position of the floating crystal is observed through one operating hole 21, while the auxiliary component 3 in the other operating hole 21 is controlled to retrieve the floating crystal.

[0042] In some embodiments, the crucible lid 2 is provided with at least three, four or more operating holes 21.

[0043] In some embodiments of this specification, by providing two operating holes 21, the specific situation inside the growth chamber 11 can be observed while operating the control unit 31, which is beneficial for accurately retrieving the floating crystal.

[0044] Auxiliary component 3 is used to assist in retrieving floating crystals from growth chamber 11.

[0045] In some embodiments, the auxiliary component 3 includes a control unit 31 and a retrieval unit 32. In some embodiments, by operating the control unit 31, which protrudes from one end of the crucible lid 2, the retrieval unit 32 can be moved within the growth chamber 11 of the crucible 1.

[0046] The control unit 31 is used to control the operation of floating crystal retrieval. In some embodiments, the control unit 31 includes a rod-shaped structure.

[0047] Figure 2 is a schematic diagram of the structure of an auxiliary component according to some embodiments of this specification.

[0048] In some embodiments, as shown in FIG2, the control unit 31 includes a connecting rod 311 and a control rod 312. One end of the connecting rod 311 is connected to the retrieval unit 32, and the other end of the connecting rod 311 is detachably connected to the control rod 312.

[0049] The connecting rod 311 is a rod-shaped structure used to connect the control rod 312 and the retrieval unit 32.

[0050] The control lever 312 is a rod-shaped structure used to control the movement of the retrieval unit 32. For example, by operating the rotation or swing of the control lever 312, the retrieval unit 32 can be controlled to rotate or swing synchronously. As another example, by controlling the control lever 312 to approach or move away from the operating hole 21, the retrieval unit 32 can be controlled to approach or move away from the raw material solution or melt.

[0051] In some embodiments, one end of the connecting rod 311 is fixedly connected to the retrieval part 32 (e.g., by welding). The other end of the connecting rod 311 is detachably connected to the control rod 312, for example, by a threaded connection.

[0052] In some embodiments of this specification, the control rod 312 and the connecting rod 311 are detachable, which facilitates the disassembly and cleaning of the retrieval section 32 after crystal growth is completed.

[0053] Figure 3 is a partial structural diagram of the apparatus for removing floating crystals according to some embodiments of this specification at the operating hole.

[0054] In some embodiments, as shown in FIG3, the control unit 31 is provided with at least one scale 313, and the port of the operation hole is provided with an indicator 211.

[0055] The scale 313 is a scale set on the connecting rod 311, which can display the position of the control unit 31 relative to the operating hole 21.

[0056] Indicator 211 is an indicator provided at the upper end of the operating hole. In some embodiments, the upper edge of the operating hole can be used directly as an indicator, or an arrow-shaped indicator can be provided separately.

[0057] In some embodiments, the length of the control unit 31 entering the growth chamber 11 can be determined by the combination of the scale 313 and the indicator 211.

[0058] In some embodiments of this specification, when the retrieval part 32 is fully immersed in the raw material solution or melt, the depth of immersion cannot be directly seen through the observation window. The position of the auxiliary component 3 in the growth chamber can be directly and conveniently obtained through the scale 313 and the indicator 211, so as to avoid the retrieval part 32 touching the crucible 1 and causing vibration, which would affect the crystal growth.

[0059] The retrieval section 32 is used to retrieve and hold the floating crystals. In some embodiments, the retrieval section 32 has a hollow structure and an opening at one end.

[0060] In some embodiments, as shown in FIG2, the retrieval unit 32 includes a retrieval groove 321 and a plurality of interception holes 322, with the opening of the retrieval groove 321 facing the crucible cover 2.

[0061] The retrieval trough 321 is used to retrieve and store the floating crystals. The interception hole 322 is used to filter out the solution or melt and intercept the floating crystals. In some embodiments, the interception hole 322 is a hole that penetrates through the retrieval trough 321.

[0062] In some embodiments of this specification, the combination of the retrieval trough 321 and multiple interception holes 322 can keep the floating crystal in the retrieval trough 321 and reduce the loss of solution or melt during the auxiliary retrieval process.

[0063] In some embodiments, the interception holes 322 are distributed on the periphery and / or bottom of the retrieval trough.

[0064] In some embodiments, as shown in FIG2, the interception holes 322 are distributed around the periphery of the retrieval trough.

[0065] In some embodiments, the interception holes 322 are distributed on the bottom side of the retrieval trough.

[0066] In some embodiments, the interception holes 322 are distributed on the periphery and bottom of the retrieval trough.

[0067] Some embodiments in this specification can achieve different salvage effects by setting different distribution patterns of the interception holes 322.

[0068] In some embodiments, the diameter of the intercepting hole is smaller than the diameter of the floating crystal.

[0069] In some embodiments, the diameter of the interception hole is 1-3 mm.

[0070] In some embodiments, the diameter of the interception hole can be 1-2 or 2-3 mm, etc.

[0071] In some embodiments, the diameter of the interception hole can be 1-1.5mm, 1.5-2mm, 2-2.5mm, or 2.5-3mm, etc.

[0072] In some embodiments, the diameter of the interception hole can be 1mm, 1.5mm, 2mm, 2.5mm or 3mm, etc.

[0073] Some embodiments in this specification, by setting interception holes 322 of different diameters, can meet diverse auxiliary salvage needs.

[0074] In some embodiments, the process of assisted retrieval using a device for removing floating crystals includes: passing an auxiliary component 3 through an operating hole 21 and partially protruding from the crucible cover 2; controlling a control part 31 protruding from the crucible cover 2 to allow the retrieval part 32 to move freely within the growth chamber, thereby retrieving floating crystals on the surface of the raw material solution or the melt. When the raw material solution or melt enters the retrieval tank 321 and then flows out through an interception hole 322, the floating crystals are intercepted by the interception hole 322 and remain in the retrieval tank 321. After crystal growth is complete, the auxiliary component 3 or the retrieval part 32 is removed to remove the remaining floating crystals from the retrieval tank 321.

[0075] In some embodiments of this specification, the crucible 1, crucible lid 2, and auxiliary component 3 work together to retrieve floating crystals using a physical retrieval method. The device is simple, easy to operate, and can prevent the introduction of other impurities. Furthermore, the observation hole of existing equipment can be used as the operation hole 21, improving the compatibility of the floating crystal removal device with existing equipment and reducing modification costs. The method of filtering and retrieving floating crystals through the retrieval section 32 has minimal impact on the raw material solution or melt in the crucible 1, thereby reducing the influence on the grown crystals.

[0076] It should be noted that the above description of the apparatus for removing floating crystals is for illustrative purposes only and does not limit the scope of this specification. Those skilled in the art can make various modifications and alterations to the apparatus for removing floating crystals under the guidance of this specification. However, these modifications and alterations remain within the scope of this specification.

[0077] Figure 4 is a partial structural diagram of the apparatus for removing floating crystals according to some other embodiments of this specification at the operating hole.

[0078] In some embodiments, as shown in FIG4, a protective sleeve 22 is provided at the end of the operation hole 21 away from the growth chamber 11, and the connecting rod 311 passes through the protective sleeve 22.

[0079] The protective sleeve 22 is used to protect and seal the gap between the operating hole 21 and the connecting rod 311. In some embodiments, the protective sleeve 22 is a hollow structure. The protective sleeve 22 can fit tightly against the end of the operating hole 21 away from the growth chamber 11 and the connecting rod 311 to achieve a sealing effect.

[0080] In some embodiments, as shown in FIG4, the protective sleeve 22 is installed on the upper end of the operating hole 21.

[0081] Figure 5 is a top view of a protective sleeve according to some embodiments of this specification. Figure 6 is a structural schematic diagram of a protective sleeve according to some embodiments of this specification.

[0082] In some embodiments, as shown in Figures 4-6, the protective sleeve 22 is annular and made of flexible material. The outer ring 221 of the protective sleeve 22 is fixedly connected to the operating hole 21, and the connecting rod 311 passes through the inner ring 222 of the protective sleeve 22 and is fixedly connected to the inner ring 222.

[0083] In some embodiments, the protective sleeve 22 may be made of a high-temperature resistant flexible material, such as graphite felt, ceramic fiber composite material, etc. In some embodiments, the protective sleeve 22 can be folded freely in any direction.

[0084] In some embodiments, as shown in FIG5, the top view of the protective sleeve 22 is annular. The diameter of the inner ring 222 of the protective sleeve 22 is smaller than the diameter of the outer ring 221.

[0085] In some embodiments, the connecting rod 311 can be fixedly connected to the inner ring 222 by various methods. For example, the connecting rod 311 can be bonded to the inner ring 222. Alternatively, the diameter of the inner ring of the protective sleeve 22 can be slightly smaller than that of the connecting rod 311. An external force is applied to fit the protective sleeve 22 onto the connecting rod 311, causing the protective sleeve 22 to deform. The resulting elastic force can then fix the protective sleeve 22 onto the connecting rod 311. In some embodiments, limiting structures are provided on both the upper and lower sides of the connection between the connecting rod 311 and the inner ring 222. The limiting structures can be protrusions or grooves on the surface of the connecting rod 311. When there is a tendency for the connecting rod 311 and the inner ring 222 to slide relative to each other, the inner ring 222 slides to the limiting structure and is blocked by the limiting structure, thereby preventing further relative sliding between the connecting rod 311 and the inner ring 222.

[0086] In some embodiments of this specification, a flexible material is used, which allows the connecting rod 311 connected to the inner ring 222 to move freely at the operating hole, thereby enhancing the operational flexibility of the control unit 31.

[0087] In some embodiments, as shown in Figures 4-6, the diameter of the operating hole 21 in the first direction is larger than the diameter of the connecting rod 311 in the first direction; when the protective sleeve 22 is in a taut state, the first position where the connecting rod 311 is connected to the inner ring 222 is different from the second position where the outer ring 221 is connected to the operating hole 21.

[0088] The first direction refers to the radial direction relative to the operating hole 21, for example, the X-axis direction in Figures 4 and 6.

[0089] The taut state refers to the state where the protective sleeve 22 is fully extended. The first position refers to the position where the connecting rod 311 is connected to the inner ring 222. The second position refers to the position where the outer ring 221 is connected to the operating hole 21. In some embodiments, when the protective sleeve 22 is in the taut state, the height of the first position is different from the height of the second position. For example, as shown in Figure 4, the height of the first position is greater than the height of the second position.

[0090] In some embodiments, when the protective sleeve 22 is in a taut state, the distance between the inner ring 222 and the outer ring 221 in the Y-axis direction can be obtained through multiple experiments based on the depth of the raw material solution or melt in the crucible 1 and the length of the auxiliary component that can extend into the growth chamber 11. By setting the distance between the inner ring 222 and the outer ring 221, the movement range of the connecting rod 311 can be limited, preventing the auxiliary component 3 from falling into the crucible 1.

[0091] In some embodiments of this specification, by setting the diameter of the operating hole 21 to be larger than the diameter of the connecting rod 311, space can be provided for the connecting rod 311 to move within the operating hole 21.

[0092] In some embodiments of this specification, the protective sleeve 22 is used for sealing, which can prevent the temperature and atmosphere inside the crucible from escaping, thus ensuring the temperature and atmosphere environment for crystal growth. At the same time, the protective sleeve 22 also protects the control rod and operating hole, preventing friction between the control rod and the operating hole and thus avoiding damage to the device.

[0093] Figure 7 is a schematic diagram of the structure of an apparatus for removing floating crystals according to some other embodiments of this specification.

[0094] In some embodiments, as shown in FIG7, the retrieval unit 32 includes an opening and closing part 323, which is located on the side of the retrieval unit 32 away from the opening; the control unit 31 includes a traction channel 314 and a traction line 315, the control unit 31 has a hollow structure, and the traction line 315 passes through the traction channel 314 formed by the hollow structure of the control unit 31 and is fixedly connected to the opening and closing part 323; the crucible also includes a storage box 12, which is located in the growth chamber 11 and is connected to the crucible 1.

[0095] The opening / closing portion 323 is used to control the transfer of the floating crystal from the retrieval portion 32. In some embodiments, the opening / closing portion 323 is located at the bottom of the retrieval portion 32, which is a through-tube shape.

[0096] The traction line 315 is a lead used to control the opening and closing part 323. In some embodiments, one end of the traction line 315 is fixedly connected to the opening and closing part 323, and the other end extends out of the top of the control part 31 for traction operation.

[0097] In some embodiments, the opening / closing part 323 can be opened or closed. The opening and closing of the opening / closing part 323 can be controlled by the traction line 315. In some embodiments, the opening / closing part 323 and the bottom of the retrieval part 32 are provided with a mutually cooperating push-type latch, and the traction line 315 is connected to the push-type latch. The opening and closing of the push-type latch can be controlled by the traction line 315, thereby controlling the opening or closing of the opening / closing part 323.

[0098] The traction channel 314 is a channel for guiding the installation of the traction line 315. In some embodiments, the hollow structure inside the control unit 31 is the traction channel 314. The traction channel 314 extends through the top and bottom of the control unit 31. In some embodiments, both the control rod 312 and the connecting rod 311 of the control unit 31 are hollow structures, and the positions of the hollow structures of the control rod 312 and the connecting rod 311 correspond to each other, allowing the traction line 315 to pass through the hollow structures of the control rod 312 and the connecting rod 311.

[0099] The storage box 12 is used to store the floating crystals retrieved by the auxiliary component. In some embodiments, the storage box 12 is located on the side wall of the growth chamber near the auxiliary component 3. In some embodiments, the upper end of the storage box 12 is open, and the size of the opening of the storage box 12 is larger than the size of the opening and closing part 323, thereby facilitating the smooth transfer of the floating crystals from the opening and closing part 323 into the storage box 12. In some embodiments, the height of the bottom surface of the storage box 12 is higher than the surface height of the raw material solution or melt.

[0100] In some embodiments, the storage box 12 is detachably connected to the crucible 1. For example, the storage box 12 can be detachably connected to the crucible 1 by means of a pin, a snap fastener, or the like.

[0101] In some embodiments, the process of assisted retrieval using a device for removing floating crystals includes: controlling the traction line 315 to open the opening and closing part 323; operating the control unit 31 to cause the retrieval part 32 to enter the raw material solution or melt; when the operating control unit 31 moves the retrieval part 32 to the position of the floating crystal, controlling the traction line 315 to close the opening and closing part 323; the operating control unit 31 retrievals the retrieval part 32 and moves it above the storage box 12; controlling the traction line 315 to open the opening and closing part 323, and transferring the floating crystal to the storage box 12 for storage. After crystal growth is completed, and the temperature drops, the storage box 12 is disassembled and the floating crystal is cleaned.

[0102] In some embodiments of this specification, by providing an opening and closing part 323, controlling the opening and closing part 323 to open can minimize the impact of the retrieval part 32 on the raw material solution or melt when entering it, avoiding ripples and other disturbances that could affect crystal growth. By controlling the opening and closing part 323 to open the retrieval float crystal temporary storage box 12, the retrieved float crystals can be stored in the storage box 12 when there are too many retrieved float crystals exceeding the holding capacity of the retrieval tank 321.

[0103] The basic concepts have been described above. Obviously, for those skilled in the art, the detailed disclosure above is merely illustrative and does not constitute a limitation of this specification. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this specification. Such modifications, improvements, and corrections are suggested in this specification and therefore remain within the spirit and scope of the exemplary embodiments described herein.

[0104] Furthermore, this specification uses specific terms to describe embodiments thereof. For example, "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of this specification. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Moreover, certain features, structures, or characteristics in one or more embodiments of this specification can be appropriately combined.

[0105] Furthermore, the order of processing elements and sequences, the use of numbers and letters, or other names described in this specification are not intended to limit the order of the processes and methods described herein. Although various examples have been discussed in the foregoing disclosure of embodiments that are currently considered useful, it should be understood that such details are for illustrative purposes only. For example, while the system components described above can be implemented using hardware devices, they can also be implemented using software solutions, such as installing the described system on an existing server or mobile device.

[0106] Similarly, it should be noted that, in order to simplify the descriptions disclosed herein and thus aid in the understanding of one or more embodiments, the foregoing descriptions of embodiments in this specification sometimes combine multiple features into a single embodiment, drawing, or description thereof. In fact, the embodiments have fewer features than all the features of the single embodiments disclosed above.

[0107] In some embodiments, numbers describing the quantity of components and attributes are used. It should be understood that such numbers used in the description of embodiments are modified in some examples with the terms "approximately," "approximately," or "generally." Unless otherwise stated, "approximately," "approximately," or "generally" indicates that the numbers are allowed to vary by ±20%. Accordingly, in some embodiments, the numerical parameters used in the specification are approximate values, which may be changed depending on the characteristics required by individual embodiments. In some embodiments, numerical parameters should take into account specified significant digits and employ a general method of digit reservation. Although the numerical ranges and parameters used to confirm their breadth of range in some embodiments of this specification are approximate values, in specific embodiments, such values ​​are set as precisely as feasible.

[0108] Finally, it should be understood that the embodiments described in this specification are merely illustrative of the principles of the embodiments described herein. Other variations may also fall within the scope of this specification. Therefore, alternative configurations of the embodiments described herein are intended to be illustrative rather than limiting, and should be considered consistent with the teachings of this specification. Accordingly, the embodiments described herein are not limited to those explicitly introduced and described herein.

Claims

1. An apparatus for removing floating crystals, characterized in that, include: A crucible, wherein a growth chamber is provided inside the crucible; The crucible lid has an operating hole that communicates with the growth chamber. The auxiliary component includes a control unit and a retrieval unit. One end of the control unit is connected to the retrieval unit, and the end of the control unit away from the retrieval unit passes through the operating hole and partially protrudes from the crucible lid. The control unit drives the retrieval unit to move within the growth chamber of the crucible.

2. The apparatus as claimed in claim 1, characterized in that, The retrieval unit includes a retrieval trough and multiple interception holes, with the opening of the retrieval trough facing the crucible lid.

3. The apparatus as described in claim 2, characterized in that, The interception holes are distributed on the periphery and / or bottom of the salvage trough.

4. The apparatus as described in claim 3, characterized in that, The diameter of the interception hole is 1-3mm.

5. The apparatus as claimed in claim 1, characterized in that, The cross-section of the operating hole on the crucible lid increases from the top of the crucible lid toward the growth chamber.

6. The apparatus as claimed in claim 5, characterized in that, The crucible lid is provided with at least two operating holes, and the end of the control unit away from the retrieval unit passes through one of the at least two operating holes.

7. The apparatus as claimed in claim 1, characterized in that, The control unit includes a connecting rod and a control rod. One end of the connecting rod is connected to the retrieval unit, and the other end of the connecting rod is detachably connected to the control rod.

8. The apparatus as claimed in claim 7, characterized in that, The control unit is provided with at least one scale, and the port of the operation hole is provided with an indicator.

9. The apparatus as claimed in claim 7, characterized in that, A protective sleeve is provided at the end of the operating hole away from the growth chamber, and the connecting rod passes through the protective sleeve.

10. The apparatus as claimed in claim 9, characterized in that, The protective sleeve is annular and made of flexible material. The outer ring of the protective sleeve is fixedly connected to the operating hole, and the connecting rod passes through the inner ring of the protective sleeve and is fixedly connected to the inner ring.

11. The apparatus as claimed in claim 10, characterized in that, The diameter of the operating hole in the first direction is greater than the diameter of the connecting rod in the first direction; when the protective sleeve is in a taut state, the height of the first position where the connecting rod connects to the inner ring is different from the height of the second position where the outer ring connects to the operating hole.

12. The apparatus as claimed in claim 1, characterized in that, The retrieval unit includes an opening and closing section located on the side of the retrieval unit away from the opening; the control unit includes a traction channel and a traction line, the control unit is a hollow structure, the traction line passes through the traction channel formed by the hollow structure of the control unit and is fixedly connected to the opening and closing section; the crucible also includes a storage box located in the growth chamber and connected to the crucible.

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