CN219260268U

CN219260268U - Secondary feeding device for processing monocrystalline silicon rod

Info

Publication number: CN219260268U
Application number: CN202223598197.2U
Authority: CN
Inventors: 朱旭东; 史浩洪; 马斌; 陶建涛
Original assignee: Jimusar Jiarui Yubang Semiconductor Materials Co ltd
Current assignee: Jimusar Jiarui Yubang Semiconductor Materials Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-27
Anticipated expiration: 2032-12-29

Abstract

The utility model relates to the technical field of monocrystalline silicon production devices, in particular to a secondary feeding device for processing monocrystalline silicon rods, which comprises a feeding cylinder, wherein a top plate is arranged at the top of the feeding cylinder, folding rods are fixedly arranged at the outer side of the top plate and the outer sides of the front end and the rear end of the feeding cylinder, a feeding motor and a positioning rod are fixedly arranged at the bottom end of the top plate, a threaded rod is fixedly arranged at the main shaft at the bottom end of the feeding motor, a sliding plate is slidably arranged at the outer side of the positioning rod and the threaded rod, a pressing rod is fixedly arranged at the bottom end of the sliding plate, an inner taper sleeve is fixedly arranged at the bottom end of the pressing rod, an acrylic inclined rod and a silica gel pad are fixedly arranged at the outer side of the pressing rod, and a quartz inner cylinder is fixedly embedded in the bottom end of the feeding cylinder.

Description

Secondary feeding device for processing monocrystalline silicon rod

Technical Field

The utility model relates to the technical field of monocrystalline silicon production devices, in particular to a secondary feeding device for processing monocrystalline silicon rods.

Background

In order to improve the utilization rate of the crucible and the yield of the single furnace, a secondary feeding method is generally adopted, namely, after the primary material melting is finished, a secondary feeding device is utilized to load polycrystalline raw materials into a quartz crucible in the single crystal furnace again, so that the productivity is improved and the energy consumption is reduced.

When the existing secondary feeding device for processing the monocrystalline silicon rod stores and feeds silicon materials, the distance between the bottom of the device and a quartz crucible port with higher heat is relatively short, so that when the silicon materials are fed into the quartz crucible, the silicon materials discharged from a discharging opening of the device are easy to cause molten liquid silicon materials in the raw quartz crucible to splash.

Disclosure of Invention

The utility model aims to provide a secondary feeding device for processing a monocrystalline silicon rod, which aims to solve the problem that when silicon materials are fed into a quartz crucible, the molten liquid silicon materials in the raw quartz crucible are easy to splash due to the silicon materials discharged from a discharging opening of the device because the bottom of the device is close to a port of the quartz crucible with higher heat in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a processing monocrystalline silicon stick's secondary feeding device, includes a feeding section of thick bamboo, the inside gomphosis of both ends is fixed about the feeding section of thick bamboo is provided with the guide chamber, feeding section of thick bamboo top is provided with the footwall, both ends outside is fixed to be provided with the book pole around footwall top outside and the feeding section of thick bamboo, footwall bottom mounting is provided with charging motor and locating lever, charging motor bottom main shaft is fixed to be provided with the threaded rod, locating lever and threaded rod outside slip are provided with the slide plate, the slide plate bottom is fixed to be provided with the depression bar, depression bar bottom mounting is provided with interior taper sleeve, the fixed ya keli inclined rod and the silica gel pad of being provided with in the depression bar outside, the inside gomphosis of feeding section of thick bamboo bottom is fixed to be provided with quartz inner tube.

Preferably, the top plate, the sliding plate and the silica gel pad are arranged in parallel, and the compression bar is arranged vertically to the sliding plate and the silica gel pad respectively.

Preferably, the included angle between the material guide cavity and the vertical end surface of the charging barrel is 45-55 degrees.

Preferably, the included angle between the acrylic inclined rod and the vertical end surface of the compression rod is 40-55 degrees.

Preferably, the silica gel pad outside is provided with the feeding cylinder inner wall and the quartz inner cylinder inner wall in a sliding way respectively, and the material guide cavity is fixedly arranged between the feeding cylinder and the quartz inner cylinder inner side.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, through the arrangement of the charging barrel, the material guiding cavity, the top disc, the folding rod, the charging motor, the positioning rod, the threaded rod, the sliding disc, the pressing rod, the inner taper sleeve, the acrylic inclined rod, the quartz inner barrel and the silica gel pad, the inner taper sleeve arranged at the outer side of the bottom of the pressing rod and the silica gel pad arranged at the outer side form the pre-storage cavity for silicon materials, the acrylic inclined rod fixedly arranged at the outer side of the pressing rod is used for filling the silicon materials at intervals, the charging motor drives the threaded rod to rotate, the sliding disc downwards slides to drive the sliding disc under the action of the positioning rod and the threads arranged in the sliding disc, the sliding disc drives the pressing rod and the inner taper sleeve to downwards slide until the annular gap appears between the inner taper sleeve and the bottom of the charging barrel for carrying out annular lateral discharging on the silicon materials, and meanwhile, the splash-proof stability of the quartz inner barrel is improved when the silicon materials are discharged by the interval filling between the acrylic inclined rod and the silicon materials, so that the problem that when the silicon materials are discharged by the device, the silicon materials in the crucible are easily melted by the discharging port of the device is caused.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic cross-sectional view of a feed cylinder according to the present utility model;

fig. 3 is a schematic diagram of the distribution structure of the acryl diagonal rod of the utility model.

In the figure: 1-charging barrel, 2-material guiding cavity, 3-top disc, 4-folding rod, 5-charging motor, 6-positioning rod, 7-threaded rod, 8-sliding disc, 9-compression rod, 10-inner taper sleeve, 11-acrylic diagonal rod, 12-quartz inner barrel and 13-silica gel pad.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, the present utility model provides a technical solution:

the utility model provides a secondary feeding device of processing monocrystalline silicon stick, including reinforced section of thick bamboo 1, reinforced section of thick bamboo 1 is controlled the inside gomphosis of both ends and is fixedly provided with guide chamber 2, reinforced section of thick bamboo 1 top is provided with footwall 3, the outside of footwall 3 top and the outside fixed book pole 4 that is provided with in both ends around reinforced section of thick bamboo 1, footwall 3 bottom mounting is provided with reinforced motor 5 and locating lever 6, reinforced motor 5 bottom spindle fixing is provided with threaded rod 7, locating lever 6 and threaded rod 7 outside slip are provided with slide plate 8, slide plate 8 bottom mounting is provided with depression bar 9, depression bar 9 bottom mounting is provided with interior taper sleeve 10, depression bar 9 outside is fixedly provided with ya keli inclined rod 11 and silica gel pad 13, reinforced section of thick bamboo 1 bottom inside gomphosis is fixedly provided with quartz inner tube 12.

As shown in fig. 1-2, through the charging barrel 1, the material guiding cavity 2, the top plate 3, the folding rod 4, the charging motor 5, the positioning rod 6, the threaded rod 7, the sliding plate 8, the pressing rod 9, the inner taper sleeve 10, the acrylic diagonal rod 11, the quartz inner barrel 12 and the silica gel pad 13 which are arranged outside the bottom of the pressing rod 9, the inner taper sleeve 10 arranged outside the pressing rod 9 and the silica gel pad 13 which are arranged outside the pressing rod form a pre-storage cavity for silicon materials, the acrylic diagonal rod 11 fixedly arranged outside the pressing rod 9 and the silica gel are filled at intervals, the charging motor 5 drives the threaded rod 7 to rotate, the sliding plate 8 slides downwards under the action of the threads arranged inside the positioning rod 6 and the sliding plate 8 to drive the sliding plate 8, the sliding plate 8 drives the pressing rod 9 and the inner taper sleeve 10 to slide downwards until an annular gap is formed between the inner taper sleeve 10 and the bottom of the charging barrel 1, the extrusion abrasion of the quartz inner barrel 12 is relieved when the silicon materials are filled at intervals between the acrylic diagonal rod 11 and the silicon materials downwards, and at the same time, the anti-splashing stability of the device is improved when the silicon materials are discharged is realized, and the top plate 3, the sliding plate 8, the pad 13 and the silica gel pad 13 are arranged in parallel to the sliding plate 8 and the silicon pad 8 respectively; the included angle between the material guide cavity 2 and the vertical end surface of the charging barrel 1 is 45-55 degrees; the included angle between the acrylic inclined rod 11 and the vertical end surface of the compression rod 9 is 40-55 degrees; the outside of the silica gel pad 13 is respectively arranged in a sliding way with the inner wall of the charging barrel 1 and the inner wall of the quartz inner barrel 12, and the material guiding cavity 2 is fixedly arranged between the charging barrel 1 and the inner side of the quartz inner barrel 12.

The working flow is as follows: the utility model forms a fixed assembly by the charging barrel 1, the top disc 3 and the folding rod 4 when in use, the quartz inner barrel 12 forms a pre-storage inner cavity structure for silicon materials, wherein the guiding cavity 2 arranged at the left end and the right end of the charging barrel 1 is used for guiding and placing the silicon materials, the inner taper sleeve 10 arranged at the outer side of the bottom of the pressing rod 9 and the silica gel pad 13 arranged at the outer side form a pre-storage inner cavity for the silicon materials, the acryl diagonal rod 11 fixedly arranged at the outer side of the pressing rod 9 is used for filling with the silicon materials at intervals, the charging motor 5 drives the threaded rod 7 to rotate, the positioning rod 6 and the sliding disc 8 are downwards slid to drive the sliding disc 8 under the action of threads arranged inside the positioning rod 6, the sliding disc 8 drives the pressing rod 6 and the inner taper sleeve 10 to downwards until an annular gap is formed between the inner taper sleeve 10 and the bottom of the charging barrel 1 for annular lateral discharging of the silicon materials, and the interval filling of the acryl diagonal rod 11 and the silicon materials slows down the extrusion abrasion of the quartz inner barrel 12 when the silicon materials are discharged downwards.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a processing monocrystalline silicon stick's secondary feeding device, includes a reinforced section of thick bamboo (1), its characterized in that: the feeding cylinder (1) is fixedly provided with a material guiding cavity (2) in the left end and the right end in a jogged manner, the top of the feeding cylinder (1) is provided with a top disc (3), folding rods (4) are fixedly arranged on the outer side of the top disc (3) and the outer sides of the front end and the rear end of the feeding cylinder (1), a feeding motor (5) and a positioning rod (6) are fixedly arranged at the bottom end of the top disc (3), a threaded rod (7) is fixedly arranged at a main shaft at the bottom end of the feeding motor (5), the utility model discloses a feeding cylinder, including locating lever (6) and threaded rod (7), locating lever (6) and threaded rod (7) outside slip are provided with slide (8), slide (8) bottom mounting is provided with depression bar (9), depression bar (9) bottom mounting is provided with interior taper sleeve (10), depression bar (9) outside is fixed to be provided with ya keli diagonal bar (11) and silica gel pad (13), inside gomphosis of feeding cylinder (1) bottom is fixed and is provided with quartz inner tube (12).

2. The secondary feeding device for processing a single crystal silicon rod as defined in claim 1, wherein: the top plate (3), the sliding plate (8) and the silica gel pad (13) are arranged in parallel, and the compression bar (9) is arranged vertically to the sliding plate (8) and the silica gel pad (13) respectively.

3. The secondary feeding device for processing a single crystal silicon rod as defined in claim 1, wherein: the included angle between the material guide cavity (2) and the vertical end face of the charging barrel (1) is 45-55 degrees.

4. The secondary feeding device for processing a single crystal silicon rod as defined in claim 1, wherein: the included angle between the acrylic inclined rod (11) and the vertical end face of the pressing rod (9) is 40-55 degrees.

5. The secondary feeding device for processing a single crystal silicon rod as defined in claim 1, wherein: the silica gel pad (13) outside is provided with the inner wall of the charging barrel (1) and the inner wall of the quartz inner barrel (12) in a sliding way respectively, and the material guide cavity (2) is fixedly arranged between the charging barrel (1) and the inner side of the quartz inner barrel (12).