Crystallization furnace
By setting side plates and partitions on the outside of the chamber of the crystallization furnace to block heat, the problem of degradation of insulation performance caused by cracking of insulation bricks in the existing furnace body is solved, and the stability and insulation performance of the furnace body are improved, while improving the crystallization effect.
Patent Information
- Application Number
- CN202421386092.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-18
- Publication Date
- 2025-05-06
- Estimated Expiration
- 2034-06-18
AI Technical Summary
The existing furnace body has cracked the insulation brick due to long-term use, which affects the insulation performance of the furnace body.
A crystallization furnace is designed. By providing a first side plate and a second side plate on the outside of the chamber, the efficiency of heat transfer to the furnace body is reduced, and by providing an end plate, a first partition plate, a second partition plate and a bottom plate, heat is blocked in the extension direction of the chamber to form a step-like temperature change distribution.
It effectively prevents the furnace body from cracking due to long-term use, ensures the stability of the furnace body shape, improves the insulation performance of the furnace body, and improves the crystallization effect.
Smart Images
Figure CN222834432U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of crystal preparation, in particular to a crystallization furnace. Background Art
[0002] The crucible descent method, also known as the Bridgman crystal growth method, is a commonly used crystal preparation method. The material used for crystallization is loaded into the crucible, which slowly descends and passes through a high-temperature furnace. The temperature inside the furnace is higher than the melting point of the crystal, so that the crystal is melted during the crucible passing through the furnace. The crucible continues to descend, and the temperature of the molten crystal at the bottom first drops below the melting point, and then begins to crystallize. The crystal continues to grow as the crucible descends, realizing the crystallization operation.
[0003] The existing furnace body is usually made of insulation bricks. The internal chamber of the furnace body will be heated to a relatively high temperature during use. Long-term use will cause the insulation bricks to crack, which will further cause the furnace body to deform and affect the insulation performance of the furnace body. Utility Model Content
[0004] The technical problems to be solved by the utility model are:
[0005] Long-term use will cause the insulation bricks to crack, affecting the insulation performance of the furnace.
[0006] In order to solve the above technical problems, the utility model provides a crystallization furnace having a first direction, a second direction and a third direction intersecting in pairs, and the crystallization furnace comprises:
[0007] A furnace body, wherein a chamber is provided in the furnace body, the chamber is extended along a first direction, an opening is provided at one end of the chamber, and the opening is located at one side of the furnace body in the first direction;
[0008] A panel assembly, the panel assembly comprising a first side panel and a second side panel, the first side panel being relatively arranged on two sides of the chamber in the second direction, and the second side panel being relatively arranged on two sides of the chamber in the third direction;
[0009] A baffle assembly, the baffle assembly comprising an end plate, a first baffle, a second baffle and a bottom plate; the end plate, the first baffle, the second baffle and the bottom plate are sequentially arranged along the chamber, and the bottom plate is arranged at one end of the chamber close to the opening;
[0010] a heating element, the heating element being disposed between the end plate and the first partition plate, the heating element being used to heat the chamber; and
[0011] A crystallization assembly, the crystallization assembly includes a crucible and a mounting frame; the crucible is inserted into the chamber through the opening, the crucible is used to accommodate crystallized material, the mounting frame is connected to the crucible, and the crucible and the mounting frame move together in a first direction.
[0012] In one embodiment, the chamber is in the shape of a rectangular groove, and the depth direction of the chamber is arranged along the first direction.
[0013] In one of the embodiments, the height of the first side plate in the first direction is equal to the depth of the chamber.
[0014] In one of the embodiments, the height of the second side plate in the first direction is smaller than the depth of the chamber, and a side of the second side plate close to the opening is flush with the opening of the chamber.
[0015] In one embodiment, the heating element is in the shape of an elongated strip extending along the second direction, the heating element passes through the furnace body and the first side plate, and the heating element is arranged on a side of the second side plate away from the opening.
[0016] In one of the embodiments, an adjustable gap is provided between an end of the chamber away from the opening and the end plate.
[0017] In one embodiment, a high temperature zone is formed between the end plate and the first partition plate, a medium temperature zone is formed between the first partition plate and the second partition plate, and a low temperature zone is formed between the second partition plate and the bottom plate.
[0018] In one of the embodiments, in the first direction, the height of the high temperature zone is greater than the height of the medium temperature zone, and the height of the medium temperature zone is greater than the height of the low temperature zone.
[0019] In one embodiment, the outer sides of the first side plate, the second side plate, the end plate, the first partition plate, the second partition plate and the bottom plate are all covered with thermal insulation cotton.
[0020] In one embodiment, the number of the chambers is at least two, and the chambers are arranged on the furnace body at intervals along the second direction, the openings of the chambers face the same side, and the partition assembly passes through the chambers in sequence.
[0021] Compared with the prior art, the above crystallization furnace has the following beneficial effects:
[0022] By arranging the first side plate and the second side plate on the outside of the chamber, the first side plate and the second side plate can effectively reduce the efficiency of heat transfer from the chamber to the furnace body, thereby buffering the heat radiation, avoiding cracking of the furnace body due to long-term use, ensuring the stability of the furnace body shape, and improving the thermal insulation performance of the furnace body.
[0023] By arranging the end plate, the first partition plate, the second partition plate and the bottom plate, the heat is blocked in the extension direction of the chamber, thereby ensuring that a stepped temperature change distribution can be formed in the chamber. The stepped temperature change is more conducive to the formation of crystallization, thereby improving the crystallization effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural schematic diagram of a crystallization furnace according to one embodiment of the utility model;
[0025] Figure 2 for Figure 1 A schematic cross-sectional view of a crystallization furnace from a side view perspective;
[0026] Figure 3 for Figure 1 Schematic cross-sectional view of the crystallization furnace from a top view.
[0027] The meanings of the numbers in the accompanying drawings are:
[0028] 100. Crystallization furnace;
[0029] 10. furnace body; 11. chamber; 15. opening;
[0030] 20. enclosure assembly; 21. first side panel; 22. second side panel;
[0031] 30. Baffle assembly; 31. End plate; 32. First baffle; 33. Second baffle; 34. Bottom plate; 35. Adjusting gap; 36. High temperature zone; 37. Medium temperature zone; 38. Low temperature zone;
[0032] 40. Heating element;
[0033] 50. crystallization assembly; 51. crucible; 52. mounting frame;
[0034] X, first direction; Y, second direction; Z, third direction. DETAILED DESCRIPTION
[0035] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific embodiments disclosed below.
[0036] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0037] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0038] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.
[0041] It should be noted that according to Figures 1 to 3 As shown, in the embodiment of the utility model, the X-axis direction, the Y-axis direction and the Z-axis direction intersect each other. For the convenience of explanation, the first direction is defined as the X-axis direction, the second direction is defined as the Y-axis direction, and the third direction is defined as the Z-axis direction. In this embodiment, the X-axis direction and the Y-axis direction are coplanar and relatively perpendicular to each other, and the Z-axis direction is relatively perpendicular to the common surface of the X-axis and the Y-axis. The first direction, the second direction, and the third direction are relatively perpendicular to each other. Further explanation, the term "parallel" in this application includes not only the situation of absolute parallelism, but also the situation of roughly parallelism conventionally recognized in engineering, such as "parallel" refers to the state where the angle formed by a straight line and a straight line, a straight line and a surface, or a surface and a surface is -1° to 1°; at the same time, "vertical" also includes not only the situation of absolute verticality, but also the situation of roughly verticality conventionally recognized in engineering, such as "vertical" refers to the state where the angle formed by a straight line and a straight line, a straight line and a surface, or a surface and a surface is 89° to 91°. Equal distances or equal angles include not only absolute equality but also approximate equality as commonly recognized in engineering, which means that there may be certain errors, such as a tolerance range of -1% to 1%.
[0042] See also Figures 1 to 3, is a crystallization furnace 100 of an embodiment of the utility model, comprising a furnace body 10, a surrounding plate assembly 20, a partition assembly 30, a heating element 40 and a crystallization assembly 50. A chamber 11 is provided in the furnace body 10, and the chamber 11 is extended along a first direction. An opening 15 is provided at one end of the chamber 11, and the opening 15 is located on one side of the furnace body 10 in the first direction. The surrounding plate assembly 20 comprises a first side plate 21 and a second side plate 22; the first side plate 21 is relatively arranged on both sides of the chamber 11 in the second direction, and the second side plate 22 is relatively arranged on both sides of the chamber 11 in the third direction. The partition assembly 30 comprises an end plate 31, a first partition 32, a second partition 33 and a bottom plate 34; the end plate 31, the first partition 32, the second partition 33 and the bottom plate 34 are arranged in sequence along the chamber 11, and the bottom plate 34 is arranged at one end of the chamber 11 close to the opening 15. The heating element 40 is inserted between the end plate 31 and the first partition plate 32, and is used to heat the chamber 11 to heat and melt the crystals. The crystallization assembly 50 includes a crucible 51 and a mounting frame 52; the crucible 51 is inserted into the chamber 11 through the opening 15, and the crucible 51 is used to accommodate the crystals. The mounting frame 52 is connected to the crucible 51, and the crucible 51 and the mounting frame 52 move together in the first direction. The melted crystals gradually solidify and crystallize out through the movement of the crucible 51, thereby realizing the crystallization operation. The chamber 11 is enclosed by the enclosure assembly 20, so as to reduce the influence of heat radiation on the furnace body 10, thereby preventing the furnace body 10 from cracking due to long-term use, and ensuring the stability of the furnace body 10 and the insulation effect of the furnace body 10.
[0043] Furthermore, the furnace body 10 is in a rectangular structure, the furnace body 10 is connected and fixed to the outside, and the furnace body 10 is made of insulation bricks. The chamber 11 is in a rectangular groove shape, the chamber 11 is recessed from one side of the furnace body 10 in the first direction to the inside of the furnace body 10, and the depth direction of the chamber 11 is arranged along the first direction. The opening 15 is correspondingly arranged at the bottom of the furnace body 10. In this embodiment, the number of the chambers 11 is at least two, and the chambers 11 are arranged on the furnace body 10 at intervals along the second direction, and the openings 15 of each chamber 11 face the same side to ensure that multiple groups of crystallization operations are carried out simultaneously to improve the crystallization efficiency.
[0044] Further, the first side plate 21 is in the shape of a rectangular straight plate, and the first side plate 21 extends along the common plane direction of the first direction and the third direction, and the first side plate 21 is relatively arranged on both sides of the chamber 11 in the second direction to reduce the heat conduction efficiency of the chamber 11 to the furnace body 10 in the second direction. The second side plate 22 is in the shape of a rectangular straight plate, and the second side plate 22 extends along the common plane direction of the first direction and the second direction, and the second side plate 22 is relatively arranged on both sides of the chamber 11 in the third direction. In this embodiment, the second side plate 22 passes through each chamber 11 in sequence.
[0045] Furthermore, the height of the first side plate 21 in the first direction is equal to the depth of the chamber 11, the height of the second side plate 22 in the first direction is less than the depth of the chamber 11, the side of the second side plate 22 close to the opening 15 is flush with the opening 15 of the chamber 11, and the side of the first side plate 21 close to the opening 15 is flush with the opening 15 of the chamber 11. By making the height of the second side plate 22 less than the depth of the chamber 11, the furnace body 10 is partially exposed in the chamber 11, so as to ensure the stability of the installation of the heating element 40 and avoid the absorption of heat by the enclosure assembly 20, thereby increasing the temperature at the exposed position of the furnace body 10 above the second side plate 22 and improving the melting efficiency of the crystals.
[0046] Furthermore, the heating element 40 is in the shape of a long strip, and the heating element 40 is extended along the second direction. The heating element 40 passes through the furnace body 10 and the first side plate 21, and the heating element 40 is arranged on the side of the second side plate 22 away from the opening 15. The heating element 40 is used to heat the chamber 11 to melt the crystals. It can be understood that the heating element 40 is a silicon molybdenum rod or a silicon carbon rod; the specific composition of the heating element 40 is not limited here, and it is sufficient to ensure that the heating element 40 can heat the chamber 11.
[0047] Further, the end plate 31 is in the shape of a straight plate, and is arranged along the common plane direction of the second direction and the third direction, and is arranged at one end of the chamber 11 away from the opening 15. The first partition plate 32 is in the shape of a straight plate, and is arranged in parallel with the end plate 31; the second partition plate 33 is in the shape of a straight plate, and is arranged on the side of the first partition plate 32 away from the end plate 31, and is arranged in parallel with the first partition plate 32; the bottom plate 34 is in the shape of a straight plate, and is arranged on the side of the second partition plate 33 away from the first partition plate 32, and is arranged in parallel with the second partition plate 33. In this embodiment, the end plate 31, the first partition plate 32, the second partition plate 33 and the bottom plate 34 all pass through each chamber 11 in sequence, so that the partition plate assembly 30 passes through each chamber 11 in sequence, ensuring that the gradient temperature zone formed by the partition plate assembly 30 in each chamber 11 is the same, thereby ensuring that the crystallization effect in each chamber 11 is the same.
[0048] Furthermore, an adjustment gap 35 is provided between the end of the chamber 11 away from the opening 15 and the end plate 31. The adjustment gap 35 is equivalent to adjusting the setting position of the end plate 31 during the construction of the crystallization furnace 100, thereby changing the distance between the end plate 31 and the heating element 40 to adjust the temperature of the crystal when melting in the chamber 11.
[0049] Furthermore, a high temperature zone 36 is formed between the end plate 31 and the first partition plate 32, a medium temperature zone 37 is formed between the first partition plate 32 and the second partition plate 33, and a low temperature zone 38 is formed between the second partition plate 33 and the bottom plate 34. In this embodiment, in the first direction, the height of the high temperature zone 36 is greater than the height of the medium temperature zone 37, and the height of the medium temperature zone 37 is greater than the height of the low temperature zone 38. By changing the height, it is ensured that the path of the crystallized material in the high temperature zone 36 is longer, which is conducive to the full melting of the crystallized material. The crystallized material is placed at a temperature close to the crystallization precipitation through the medium temperature zone 37, and the height of the low temperature zone 38 is minimized, which ensures faster cooling and crystallization of the crystallized material, thereby ensuring the crystallization effect and crystallization quality.
[0050] Further, the crucible 51 is a hollow rectangular structure, and the interior of the crucible 51 is used to accommodate the crystallized material, thereby providing a growth space for the crystallization. The mounting frame 52 is a rectangular straight plate structure, and the mounting frame 52 is extended along the second direction, and the mounting frame 52 is used to carry the crucible 51. In this embodiment, the crystallization assembly 50 also includes a lifting member (not shown). The lifting member is arranged on the side of the mounting frame 52 away from the crucible 51, and the lifting member is used to drive the mounting frame 52 and the crucible 51 to move along the first direction, thereby ensuring the crystallization operation. It can be understood that the number of the crucibles 51 is the same as the number of the chambers 11, and each crucible 51 is respectively inserted into each chamber 11, and each crucible 51 is fixed on the mounting frame 52 to ensure that each crucible 51 is driven to move synchronously, so as to ensure that the crystallization effect of each crucible 51 is the same. The lifting member is one of a cylinder, a hydraulic cylinder, a screw mechanism or a gear rack mechanism. It can be understood that the specific structure of the lifting member is not limited here, and it is sufficient to ensure that the lifting member can drive the mounting frame 52 and the crucible 51 to move up and down along the first direction.
[0051] In summary, the embodiment of the utility model provides a crystallization furnace 100, which has the following beneficial effects:
[0052] By arranging the first side plate 21 and the second side plate 22 on the outer side of the chamber 11, the first side plate 21 and the second side plate 22 can effectively reduce the efficiency of transferring heat from the chamber 11 to the furnace body 10, thereby buffering the heat radiation, avoiding cracking of the furnace body 10 due to long-term use, ensuring the stability of the shape of the furnace body 10, and improving the thermal insulation performance of the furnace body 10.
[0053] By providing the end plate 31, the first partition plate 32, the second partition plate 33 and the bottom plate 34, heat is blocked in the extension direction of the chamber 11, thereby ensuring that a stepped temperature change distribution can be formed in the chamber 11. The stepped temperature change is more conducive to the formation of crystals, thereby improving the crystallization effect.
[0054] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0055] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.
Claims
1. A crystallization furnace having a first direction, a second direction and a third direction intersecting each other, characterized in that: The crystallization furnace comprises: A furnace body, wherein a chamber is provided in the furnace body, the chamber is extended along a first direction, an opening is provided at one end of the chamber, and the opening is located at one side of the furnace body in the first direction; A panel assembly, the panel assembly comprising a first side panel and a second side panel, the first side panel being relatively arranged on two sides of the chamber in the second direction, and the second side panel being relatively arranged on two sides of the chamber in the third direction; A baffle assembly, the baffle assembly comprising an end plate, a first baffle, a second baffle and a bottom plate; the end plate, the first baffle, the second baffle and the bottom plate are sequentially arranged along the chamber, and the bottom plate is arranged at one end of the chamber close to the opening; a heating element, the heating element being disposed between the end plate and the first partition plate, the heating element being used to heat the chamber; and A crystallization assembly, the crystallization assembly includes a crucible and a mounting frame; the crucible is inserted into the chamber through the opening, the crucible is used to accommodate crystallized material, the mounting frame is connected to the crucible, and the crucible and the mounting frame move together in a first direction.
2. The crystallization furnace according to claim 1, characterized in that: The chamber is in the shape of a rectangular groove, and the depth direction of the chamber is arranged along the first direction.
3. The crystallization furnace according to claim 2, characterized in that: A height of the first side plate in the first direction is equal to a depth of the chamber.
4. The crystallization furnace according to claim 2, characterized in that: The height of the second side plate in the first direction is smaller than the depth of the chamber, and a side of the second side plate close to the opening is flush with the opening of the chamber.
5. The crystallization furnace according to claim 4, characterized in that: The heating element is in a strip shape and extends along the second direction. The heating element passes through the furnace body and the first side plate. The heating element is arranged on a side of the second side plate away from the opening.
6. The crystallization furnace according to claim 1, characterized in that: An adjustment gap is arranged between an end of the chamber away from the opening and the end plate.
7. The crystallization furnace according to claim 1, characterized in that: A high temperature zone is formed between the end plate and the first partition plate, a medium temperature zone is formed between the first partition plate and the second partition plate, and a low temperature zone is formed between the second partition plate and the bottom plate.
8. The crystallization furnace according to claim 7, characterized in that: In the first direction, the height of the high temperature zone is greater than the height of the medium temperature zone, and the height of the medium temperature zone is greater than the height of the low temperature zone.
9. The crystallization furnace according to claim 1, characterized in that: The outer sides of the first side plate, the second side plate, the end plate, the first partition plate, the second partition plate and the bottom plate are all covered with thermal insulation cotton.
10. The crystallization furnace according to claim 1, characterized in that: The number of the chambers is at least two, and the chambers are arranged on the furnace body at intervals along the second direction. The opening directions of the chambers face the same side, and the partition assembly passes through the chambers in sequence.