A polycrystalline silicon ingot casting device

Abstract

The utility model discloses a kind of ingot casting devices for polysilicon ingot furnace, it relates to the field of polysilicon ingot, and its technical scheme main point is including crucible, the crucible top is equipped with extension fence, extension fence moves up and down along the height direction of crucible, and drive element is connected to the crucible end in the direction of extension fence, the side of the crucible is equipped with moving block, two moving blocks are equipped in each side of crucible, drive element is located between two moving blocks position, the top of moving block is slidably connected with adjusting rod, blade type strip is fixed to the side of adjusting rod towards crucible, and blade type strip is equipped with several, reaches without changing the structure of crucible itself, does not affect the quality of polysilicon casting formation, and the effect that it is convenient for polysilicon cast block removal.

Description

Technical Field

[0001] This utility model relates to the technical field of polycrystalline silicon ingot casting, specifically to an ingot casting device for a polycrystalline silicon ingot casting furnace. Background Technology

[0002] A polycrystalline silicon ingot furnace is a process testing instrument used in the fields of physics, metallurgical engineering technology, and energy science and technology. The ingot casting device inside the polycrystalline silicon ingot furnace can melt polycrystalline silicon fragments into molten silicon and then cast them into silicon ingots.

[0003] However, existing technologies still have the following problems: the silicon crystals produced by these devices are often manually demolded, which results in low automation of the entire device, poor demolding effect, and reduced practicality of the entire device.

[0004] To address the aforementioned problems, the inventors have proposed a polycrystalline silicon ingot casting device for use in a polycrystalline silicon ingot furnace. Utility Model Content

[0005] The purpose of this invention is to provide a polycrystalline silicon ingot casting furnace device that does not change the structure of the crucible itself, does not affect the polycrystalline silicon casting quality, and facilitates the removal of polycrystalline silicon ingots.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] The device includes a crucible, with an extended enclosure on the top of the crucible that moves up and down along the height of the crucible. A drive unit is connected to the extended enclosure toward the end of the crucible. Two movable blocks are provided on each side of the crucible, and the drive unit is located between the two movable blocks. An adjusting rod is slidably connected to the top of each movable block, and a blade-shaped strip is fixed to the adjusting rod toward the crucible side. Several blade-shaped strips are provided.

[0008] Furthermore, the driving component includes a fixing plate fixed to the side of the crucible, a first cylinder is mounted on the fixing plate, the output end of the first cylinder abuts against a lug plate, the lug plate is fixed to the side of the extended enclosure, and the lug plate is integrally fixed with the extended enclosure.

[0009] Using the above technical solution, after the first cylinder is opened, the first cylinder can drive the extension barrier to move up and down. When the extension barrier moves downward, it can abut against the top of the crucible to extend the polycrystalline silicon ingot and facilitate subsequent automatic demolding.

[0010] Furthermore, a piston rod is connected to the bottom of the moving block, and a second cylinder is connected to the end of the piston rod away from the moving block. A fixing frame is provided outside the second cylinder, and the side of the fixing frame is bonded to the side of the crucible.

[0011] Using the above technical solution, the moving block can be driven to move up and down by the second cylinder. When the moving block moves up, it can drive the polycrystalline silicon ingot to move up, which can automatically demold the polycrystalline silicon and facilitate operation.

[0012] Furthermore, a fixed block is fixed to the end of the moving block away from the piston rod, and the adjusting rod is slidably connected inside the fixed block. A baffle is fixed to the end of the adjusting rod away from the crucible, and a spring is fixed between the baffle and the fixed block. The spring is sleeved on the outside of the adjusting rod.

[0013] Furthermore, the adjusting rod has a wedge-shaped surface on its side, which is located close to the blade strip and above the blade strip.

[0014] By adopting the above technical solution, when the extended enclosure moves up and down, the adjusting rod can be automatically driven to move left and right, avoiding the adjusting rod restricting the movement of the extended enclosure. At the same time, the blade-shaped strip can be inserted into the side of the polycrystalline silicon ingot, improving the stability of subsequent automatic demolding.

[0015] In summary, the beneficial technical effects of this utility model are as follows:

[0016] 1. A moving block is adopted, which can be driven to move up and down by a second cylinder. When the moving block moves up, it can drive the polycrystalline silicon ingot to move up, which can automatically demold the polycrystalline silicon and facilitate operation.

[0017] 2. A first cylinder is used. After the first cylinder is opened, it can drive the extension barrier to move up and down. When the extension barrier moves downward, it can abut against the top of the crucible to extend the polycrystalline silicon ingot and facilitate subsequent automatic demolding.

[0018] 3. An adjusting rod is adopted, which can automatically drive the adjusting rod to move left and right when the extended enclosure moves up and down, avoiding the adjusting rod restricting the movement of the extended enclosure. At the same time, the blade-shaped strip can be inserted into the side of the polycrystalline silicon ingot to improve the stability of subsequent automatic demolding. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present invention and form part of the specification, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of an ingot casting device for a polycrystalline silicon ingot furnace provided in this embodiment;

[0021] Figure 2 This embodiment provides an ingot casting apparatus for a polycrystalline silicon ingot casting furnace. Figure 1 A side view;

[0022] Figure 3 This embodiment provides an ingot casting apparatus for a polycrystalline silicon ingot casting furnace. Figure 1Enlarged diagram of point A in the middle.

[0023] In the diagram, 1. Crucible; 2. Extended enclosure; 3. Moving block; 4. Adjusting rod; 5. Blade-shaped strip; 6. Fixing plate; 7. First cylinder; 8. Ear plate; 9. Wedge-shaped surface; 10. Second cylinder; 11. Fixing frame; 12. Fixing block; 13. Baffle; 14. Spring. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings.

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figure 1-3 The present invention provides a technical solution comprising: a crucible 1, wherein an extended enclosure 2 is provided on the top of the crucible 1, the extended enclosure 2 moves up and down along the height direction of the crucible 1, a driving component is connected to the end of the extended enclosure 2 facing the crucible 1, and a moving block 3 is provided on the side of the crucible 1, with two moving blocks 3 on each side of the crucible 1, the driving component being located between the two moving blocks 3, and an adjusting rod 4 is slidably connected to the top of the moving block 3, and a blade-shaped strip 5 is fixed to the adjusting rod 4 facing the crucible 1, the blade-shaped strip 5 being provided in several parts.

[0027] Specifically, the driving component includes a fixing plate 6 fixed to the side of the crucible 1, a first cylinder 7 mounted on the fixing plate 6, an ear plate 8 fixed to the output end of the first cylinder 7, the ear plate 8 fixed to the side of the extended enclosure 2, and the ear plate 8 and the extended enclosure 2 are fixed together.

[0028] In this embodiment, the extended enclosure 2 is made of the same material as the crucible 1. The extended enclosure 2 is located at the top of the crucible 1. After the first cylinder 7 is opened, the first cylinder 7 can drive the extended enclosure 2 to move up and down. When the extended enclosure 2 moves downward, it can abut against the top of the crucible 1.

[0029] A piston rod is connected to the bottom of the movable block 3. A second cylinder 10 is connected to the end of the piston rod away from the movable block 3. A fixing frame 11 is provided on the outside of the second cylinder 10. The side of the fixing frame 11 is glued to the side of the crucible 1.

[0030] The moving block 3 is fixed with a fixed block 12 at the end away from the piston rod. The adjusting rod 4 is slidably connected inside the fixed block 12. The adjusting rod 4 is fixed with a baffle 13 at the end away from the crucible 1. A spring 14 is fixed between the baffle 13 and the fixed block 12. The spring 14 is sleeved on the outside of the adjusting rod 4.

[0031] The adjusting rod 4 has a wedge-shaped surface 9 on its side, which is located close to the blade strip 5 and above the blade strip 5.

[0032] The adjusting rod 4 can slide freely inside the fixed block 12 and is pulled by the spring 14. After the upper extension enclosure 2 moves down, it can abut along the wedge surface 9, driving the adjusting rod 4 to move towards the baffle 13. Then the spring 14 begins to compress. After the extension enclosure 2 moves up, as the spring 14 returns to its original position, it drives the adjusting rod 4 to move towards the crucible 1. After the adjusting rod 4 moves, its end face can extend into the interior of the crucible 1.

[0033] Meanwhile, the height of the adjusting rod 4 can be adjusted by driving the second cylinder 10. After the second cylinder 10 is driven, the moving block 3 moves, which in turn moves the adjusting rod 4 above.

[0034] The working principle of this invention is as follows: The crucible 1 is placed inside a casting furnace. During polycrystalline silicon ingot casting inside the crucible 1, the first cylinder 7 is opened, driving the extension barrier 2 to contact the top of the crucible 1. As the extension barrier 2 moves downward, it first contacts the wedge-shaped surface 9 of the adjusting rod 4, driving the adjusting rod 4 to move away from the end of the crucible 1. Simultaneously, the sealing cap of the crucible 1 is covered on top of the extension barrier 2. Thus, after the polycrystalline silicon is formed, an extension block exceeding the height of the crucible 1 is formed at the tail. When removing the polycrystalline silicon, it can be removed again... The first cylinder 7 drives the expansion enclosure 2 to rise. During the reset process of the spring 14, the adjusting rod 4 automatically moves towards the crucible 1 end. The blade 5 at the end of the adjusting rod 4 abuts against the side of the expansion block. Since the adjusting rod 4 is driven by the spring 14, there is an impact force in the direction of the expansion block, so the blade 5 can be embedded inside the expansion block. Then, driven by the second cylinder 10, the entire polycrystalline silicon ingot can be lifted by the four adjusting rods 4, which makes it easier to remove the material. After removing the material, the expansion block part on the polycrystalline silicon ingot can be cut off.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A casting apparatus for a polycrystalline silicon ingot furnace, characterized in that, The crucible (1) includes an extended enclosure (2) on the top of the crucible (1). The extended enclosure (2) moves up and down along the height of the crucible (1). A drive unit is connected to the end of the extended enclosure (2) facing the crucible (1). A moving block (3) is provided on the side of the crucible (1). Two moving blocks (3) are provided on each side of the crucible (1). The drive unit is located between the two moving blocks (3). An adjusting rod (4) is slidably connected to the top of the moving block (3). A blade-shaped strip (5) is fixed to the adjusting rod (4) facing the crucible (1). Several blade-shaped strips (5) are provided.

2. The ingot casting apparatus for a polycrystalline silicon ingot casting furnace according to claim 1, characterized in that: The driving component includes a fixing plate (6) fixed to the side of the crucible (1), a first cylinder (7) is installed on the fixing plate (6), an ear plate (8) is fixed to the output end of the first cylinder (7), the ear plate (8) is fixed to the side of the extended enclosure (2), and the ear plate (8) is fixed to the extended enclosure (2) as a whole.

3. The ingot casting device for a polycrystalline silicon ingot furnace according to claim 1, characterized in that: The bottom of the moving block (3) is connected to a piston rod, and the end of the piston rod away from the moving block (3) is connected to a second cylinder (10). The second cylinder (10) is provided with a fixing frame (11) on the outside, and the side of the fixing frame (11) is bonded to the side of the crucible (1).

4. The ingot casting device for a polycrystalline silicon ingot furnace according to claim 3, characterized in that: The moving block (3) is fixed with a fixed block (12) at the end away from the piston rod. The adjusting rod (4) is slidably connected inside the fixed block (12). A baffle (13) is fixed at the end of the adjusting rod (4) away from the crucible (1). A spring (14) is fixed between the baffle (13) and the fixed block (12). The spring (14) is sleeved on the outside of the adjusting rod (4).

5. The ingot casting apparatus for a polycrystalline silicon ingot casting furnace according to claim 4, characterized in that: The adjusting rod (4) has a wedge-shaped surface (9) on its side, which is located close to the blade strip (5) and above the blade strip (5).

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