Monocrystalline silicon re-feeding cylinder

Abstract

The utility model discloses a monocrystalline silicon re-feeding cylinder which comprises a feeding cylinder body, the upper end of the feeding cylinder body is provided with a feeding port, the lower end of the feeding cylinder body is provided with a discharging port, and the upper end of the feeding cylinder body is detachably connected with a feeding funnel-proof mechanism. According to the single crystal silicon re-feeding cylinder disclosed by the utility model, the connecting rod is controlled to drive the quartz base cone to move, so that the discharge hole is opened or closed, and the additionally arranged spiral material guide piece is beneficial to reducing the blanking speed of a silicon material in the process that the silicon material is loaded into the cylinder body of the feeding cylinder and in the re-feeding process, so that the impact on the quartz base cone below is reduced; the service life of the quartz base cone is prolonged, meanwhile, silicon liquid is prevented from splashing and adhering to positions such as a water cooling screen during re-feeding and feeding, the production efficiency is prevented from being influenced, the feeding funnel mechanism facilitates feeding of the interior of the feeding cylinder body, raw materials are prevented from being poured and leaked, and the feeding funnel main body is also convenient to disassemble and assemble and is convenient for operators to maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of single crystal silicon equipment, in particular to a single crystal silicon re-feeding barrel. Background Art

[0002] With the widespread promotion of the multi-crystal pulling process in one furnace, the frequency of secondary feeding is increasing. At present, the single crystal industry generally uses a re-feeding barrel as a secondary feeding tool. The existing re-feeding barrel has the following problems during use: when the silicon material is discharged at a fast speed, it is easy to fall to the outside of the crucible, and there will be a safety hazard of sparks between the crucible side and the heater position or even the crucible side being penetrated. If the silicon material is discharged too quickly, the silicon liquid will splash and adhere to the water cooling screen and other positions. In the later crystal pulling process, it will fall into the silicon liquid, resulting in equal diameter wire breakage, reducing production efficiency. When the silicon material is loaded into the re-feeding barrel and when the re-feeding is carried out, the silicon material is discharged quickly, which will cause impact on the quartz cone below, affecting the service life of the quartz cone.

[0003] When the feeding barrel is in use, the material is poured into the feeding port, but it is easy to cause leakage, which is inconvenient to handle and clean, and wastes material costs, which brings certain adverse effects to people's use process. For this reason, we propose a single crystal silicon re-feeding barrel. Utility Model Content

[0004] Technical problems solved: In response to the shortcomings of the existing technology, the utility model provides a single crystal silicon re-feeding barrel, which has the advantages of enhanced protection for the quartz bottom cone, and the easy disassembly of the feed anti-funnel mechanism, which prevents leakage during feeding, and can effectively solve the problems in the background technology.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a single crystal silicon re-feeding barrel, including a feeding barrel body, a feeding port is provided at the upper end of the feeding barrel body, a discharge port is provided at the lower end of the feeding barrel body, the upper end of the feeding barrel body is detachably connected to a feeding anti-funnel mechanism, the upper end of the feeding barrel body is fixedly connected to a supporting fixed frame, the interior of the feeding barrel body is movably connected to a control connecting rod, the upper end outer wall of the control connecting rod passes through the interior of the supporting fixed frame and moves, the outer wall of the control connecting rod is fixedly connected to a spiral guide member, and the lower end of the spiral guide member is movably connected to a quartz bottom cone.

[0006] Preferably, the interior of the feeding barrel body and the feed port and the discharge port are interconnected, the outer wall of the control connecting rod is fixedly connected to the inner wall of the spiral guide member, and the spiral guide member drives the quartz bottom cone to move.

[0007] Preferably, the feed anti-funnel mechanism includes a positioning fixing frame, an internal positioning insertion hole, an internal movable connecting hole, a guide movable rod, a triangular movable block, a limit guide block, a damper, an elastic member, a feed anti-funnel body, an insertion positioning block and a positioning connecting hole. Both sides of the upper end of the inner wall of the feeding barrel are fixedly connected to one side of the positioning fixing frame, and an internal positioning insertion hole is provided at the upper end of the positioning fixing frame.

[0008] Preferably, inner movable connection holes are provided on both sides of the inner wall of the inner positioning insertion hole, and the upper and lower ends of the inner wall of the inner movable connection hole are fixedly connected to both sides of the guide movable rod.

[0009] Preferably, the rear end of the triangular movable block is fixedly connected to one side of the limiting guide block, the inner walls of the upper and lower ends of the limiting guide block are both movable through the outer wall of the guide movable rod, and the other side of the limiting guide block is fixedly connected to one end of the damper and the elastic member, the damper is located on the inner side of the elastic member, and the other ends of the damper and the elastic member are fixedly connected to the rear end of the inner wall of the inner movable connecting hole.

[0010] Preferably, the lower end of the feed anti-funnel body is fixedly connected to the upper end of the insertion positioning block, positioning connection holes are opened on both sides of the insertion positioning block, the outer wall of the triangular movable block is engaged with the inner side of the positioning connection hole, and the outer wall of the insertion positioning block is detachably connected to the inner wall of the inner positioning insertion hole.

[0011] Beneficial effects: Compared with the prior art, the utility model provides a single crystal silicon re-feeding barrel, which has the following beneficial effects:

[0012] 1. This single crystal silicon re-feeding barrel drives the quartz bottom cone to move by controlling the connecting rod to open or close the discharge port. The added spiral guide helps to slow down the silicon material discharge speed during the process of loading the silicon material into the barrel body and during re-feeding, reducing the impact on the quartz bottom cone below, extending the service life of the quartz bottom cone, and at the same time preventing silicon liquid from splashing and adhering to places such as the water cooling screen during re-feeding, thereby affecting production efficiency.

[0013] 2. This single crystal silicon re-feeding barrel facilitates feeding into the interior of the barrel body through the provided feed anti-funnel mechanism, thereby preventing raw materials from leaking, and the feed anti-funnel main body is also easy to disassemble and install, and is convenient for operators to maintain. The insertion positioning block connected to the lower end of the feed anti-funnel main body can be inserted into the inner positioning insertion hole, and has a certain tension through the damper and the elastic member, so that the triangular movable clamping block can be clamped into the positioning connection hole for engagement and positioning, thereby positioning the insertion positioning block in the inner positioning insertion hole to enhance firmness, and when disassembling, the feed anti-funnel main body and the insertion positioning block can be pulled upward with force, and the feed anti-funnel main body and the positioning fixing frame can be disassembled, which is convenient for subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of a single crystal silicon re-feeding barrel of the utility model.

[0015] Figure 2 The present invention is a schematic diagram of the partial structure of a feeding anti-funnel mechanism provided at the upper end of a feeding cylinder body of a single crystal silicon re-feeding cylinder.

[0016] Figure 3 The utility model is a structural schematic diagram of a feeding anti-funnel main body, an inserting positioning block and a positioning connection hole of a single crystal silicon re-feeding barrel.

[0017] Figure 4 The utility model is a schematic diagram of the internal structure of a positioning and fixing frame of a single crystal silicon re-feeding barrel.

[0018] In the figure: 1. Feeding barrel body; 2. Feeding port; 3. Feeding anti-funnel mechanism; 4. Supporting and fixing frame; 5. Discharging port; 6. Control connecting rod; 7. Spiral guide piece; 8. Quartz bottom cone; 301. Positioning fixing frame; 302. Internal positioning insertion hole; 303. Internal movable connecting hole; 304. Guide movable rod; 305. Triangular movable block; 306. Limiting guide block; 307. Damper; 308. Elastic piece; 309. Feeding anti-funnel body; 310. Insert positioning block; 311. Positioning connecting hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figure 1-4 As shown, a single crystal silicon re-feeding barrel comprises a feeding barrel body 1, a feeding port 2 is provided at the upper end of the feeding barrel body 1, a discharging port 5 is provided at the lower end of the feeding barrel body 1, the upper end of the feeding barrel body 1 is detachably connected to a feeding anti-funnel mechanism 3, the upper end of the feeding barrel body 1 is fixedly connected to a supporting frame 4, the interior of the feeding barrel body 1 is movably connected to a control connecting rod 6, the upper end outer wall of the control connecting rod 6 passes through the interior of the supporting frame 4 and moves, the outer wall of the control connecting rod 6 is fixedly connected to a spiral guide 7, the lower end of the spiral guide 7 is movably connected to a quartz bottom cone 8, and the quartz bottom cone 8 is driven to move by the control connecting rod 6.

[0021] Furthermore, the interior of the feeding barrel body 1 and the feed port 2 and the discharge port 5 are interconnected, and the outer wall of the control connecting rod 6 is fixedly connected to the inner wall of the spiral guide 7. The spiral guide 7 drives the quartz bottom cone 8 to move, which is convenient for movement.

[0022] Furthermore, the feed anti-funnel mechanism 3 includes a positioning fixing frame 301, an inner positioning insertion hole 302, an inner movable connection hole 303, a guide movable rod 304, a triangular movable block 305, a limiting guide block 306, a damper 307, an elastic member 308, a feed anti-funnel body 309, an insertion positioning block 310 and a positioning connection hole 311. Both sides of the upper end of the inner wall of the feeding barrel body 1 are fixedly connected to one side of the positioning fixing frame 301. The upper end of the positioning fixing frame 301 is provided with an inner positioning insertion hole 302, and the insertion positioning block 310 is inserted into the inner positioning insertion hole 302 for easy positioning.

[0023] Furthermore, internal movable connection holes 303 are opened on both sides of the inner wall of the internal positioning insertion hole 302, and the upper and lower ends of the inner wall of the internal movable connection hole 303 are fixedly connected to both sides of the guide movable rod 304. The guide movable rod 304 is used to guide the limiting guide block 306 during its movement to prevent it from detaching.

[0024] Furthermore, the rear end of the triangular movable block 305 is fixedly connected to one side of the limiting guide block 306, and the inner walls of the upper and lower ends of the limiting guide block 306 are both movable through the outer wall of the guide movable rod 304, and the other side of the limiting guide block 306 is fixedly connected to the damper 307 and one end of the elastic member 308. The damper 307 is located on the inner side of the elastic member 308, and the other ends of the damper 307 and the elastic member 308 are fixedly connected to the rear end of the inner wall of the inner movable connection hole 303, thereby enhancing the firmness.

[0025] Furthermore, the lower end of the feed anti-funnel body 309 is fixedly connected to the upper end of the insertion positioning block 310, and positioning connection holes 311 are opened on both sides of the insertion positioning block 310. The outer wall of the triangular movable block 305 is engaged with the inner side of the positioning connection hole 311, and the outer wall of the insertion positioning block 310 is detachably connected to the inner wall of the inner positioning insertion hole 302, which is convenient for disassembly and maintenance.

[0026] Working principle: the single crystal silicon re-feeding barrel, including feeding barrel cylinder 1, feed inlet 2, feed leakage prevention funnel mechanism 3, support fixing frame 4, discharge port 5, control connecting rod 6, spiral guide 7 and quartz bottom cone 8, single crystal silicon can enter the inside of feeding barrel cylinder 1 from the feed inlet 2 opened in the upper end of feeding barrel cylinder 1, and the inside of feeding barrel cylinder 1 is conveniently fed by the arranged feed leakage prevention funnel mechanism 3, preventing raw material from spilling, and the feed leakage prevention funnel body 309 is also convenient to disassemble and install, facilitating maintenance by operating personnel, the lower end of the feed leakage prevention funnel body 309 is connected with the insertion positioning block 310, which can be inserted into the inside of the inside positioning insertion hole 302, and by the damping device 307 and the elastic element 308, a certain tension is provided, the triangular movable clamping block 305 can be clamped into the positioning connecting hole 311 for clamping positioning, so that the insertion positioning block 310 is positioned in the inside positioning insertion hole 302, the firmness is enhanced, and when disassembling, the feed leakage prevention funnel body 309 and the insertion positioning block 310 can be pulled upward with force, so that the feed leakage prevention funnel body 309 and the positioning fixing frame 301 can be disassembled, facilitating subsequent maintenance, then the quartz bottom cone 8 is driven to move by the control connecting rod 6, so that the discharge port 5 is opened or closed, the added spiral guide 7 helps to slow down the silicon material feeding speed during the process of loading silicon material into the inside of the feeding barrel cylinder 1 and re-feeding, reduces the impact on the lower quartz bottom cone 8, prolongs the service life of the quartz bottom cone 8, and prevents the silicon liquid from splashing and adhering to the water-cooled screen and other positions during re-feeding, affecting the production efficiency.

[0027] It should be noted that the relational terms herein such as first and second and the like are used solely to distinguish one from another entity or action without necessarily requiring or implying any actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises... " does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0028] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principle of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A single crystal silicon re-feeding barrel, comprising a feeding barrel body (1), characterized in that: The upper end of the feeding barrel body (1) is provided with a feeding port (2), the lower end of the feeding barrel body (1) is provided with a discharging port (5), the upper end of the feeding barrel body (1) is detachably connected to a feeding anti-funnel mechanism (3), the upper end of the feeding barrel body (1) is fixedly connected to a supporting fixed frame (4), the interior of the feeding barrel body (1) is movably connected to a control connecting rod (6), the upper end outer wall of the control connecting rod (6) passes through the interior of the supporting fixed frame (4) and is movable, the outer wall of the control connecting rod (6) is fixedly connected to a spiral guide member (7), and the lower end of the spiral guide member (7) is movably connected to a quartz bottom cone (8).

2. The single crystal silicon re-feeding barrel according to claim 1, characterized in that: The interior of the feeding barrel body (1) and the feed port (2) and the discharge port (5) are interconnected, the outer wall of the control connecting rod (6) is fixedly connected to the inner wall of the spiral guide member (7), and the spiral guide member (7) drives the quartz bottom cone (8) to move.

3. The single crystal silicon re-feeding barrel according to claim 2, characterized in that: The feeding anti-funnel mechanism (3) comprises a positioning fixing frame (301), an inner positioning insertion hole (302), an inner movable connection hole (303), a guide movable rod (304), a triangular movable block (305), a limiting guide block (306), a damper (307), an elastic member (308), a feeding anti-funnel body (309), an insertion positioning block (310) and a positioning connection hole (311). Both sides of the upper end of the inner wall of the feeding barrel body (1) are fixedly connected to one side of the positioning fixing frame (301), and the upper end of the positioning fixing frame (301) is provided with an inner positioning insertion hole (302).

4. The single crystal silicon re-feeding barrel according to claim 3, characterized in that: Inner movable connection holes (303) are provided on both sides of the inner wall of the inner positioning insertion hole (302), and the upper and lower ends of the inner wall of the inner movable connection hole (303) are fixedly connected to both sides of the guide movable rod (304).

5. The single crystal silicon re-feeding barrel according to claim 4, characterized in that: The rear end of the triangular movable block (305) is fixedly connected to one side of the limiting guide block (306); the inner walls of the upper and lower ends of the limiting guide block (306) are both movable through the outer wall of the guide movable rod (304); the other side of the limiting guide block (306) is fixedly connected to the damper (307) and one end of the elastic member (308); the damper (307) is located on the inner side of the elastic member (308); the other ends of the damper (307) and the elastic member (308) are both fixedly connected to the rear end of the inner wall of the inner movable connection hole (303).

6. The single crystal silicon re-feeding barrel according to claim 5, characterized in that: The lower end of the feed anti-funnel body (309) is fixedly connected to the upper end of the insertion positioning block (310), and positioning connection holes (311) are provided on both sides of the insertion positioning block (310). The outer wall of the triangular movable block (305) is engaged with the inner side of the positioning connection hole (311), and the outer wall of the insertion positioning block (310) is detachably connected to the inner wall of the inner positioning insertion hole (302).

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