CN219898609U

CN219898609U - Feeding device for preparing inner layer of quartz crucible

Info

Publication number: CN219898609U
Application number: CN202321369544.6U
Authority: CN
Inventors: 吴佩芳; 李和栋; 徐振华; 赵呈旭
Original assignee: Jiangsu Xinyiyang High Tech Materials Co ltd
Current assignee: Jiangsu Xinyiyang High Tech Materials Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-10-27
Anticipated expiration: 2033-05-31

Abstract

The utility model relates to a feeding device for preparing an inner layer of a quartz crucible, which relates to the technical field of quartz crucible production equipment and comprises a mounting assembly and a spraying mechanism, wherein the spraying mechanism is fixedly connected with the mounting assembly, the spraying mechanism comprises a feeding box, a feeding pipe and a spraying head, the spraying head comprises a spray head shell, a spraying opening is formed in the side wall of the spray head shell, one end of the feeding pipe is fixedly connected with the bottom surface of the feeding box and communicated with the inner space of the feeding box, the other end of the feeding pipe is fixedly connected with the spray head shell and communicated with the inner space of the spray head shell, the spraying head further comprises a plurality of blades and a first driving piece, the blades and the first driving piece are positioned in the spray head shell and can rotate around the central shaft of the spray head shell, and the first driving piece is fixedly connected with the spray head shell and can drive the blades to rotate. The utility model has the effect of enabling the thickness of the side wall and the arc of the inner layer of the prepared quartz crucible to be uniform.

Description

Feeding device for preparing inner layer of quartz crucible

Technical Field

The utility model relates to the technical field of quartz crucible production equipment, in particular to a feeding device for preparing an inner layer of a quartz crucible.

Background

The quartz crucible is an important consumable material in the process of preparing monocrystalline silicon, is generally used for accommodating a silicon solution in a high-temperature state, is in direct contact with the high-temperature silicon solution in the process of preparing the monocrystalline silicon, and the quality of the quartz crucible has great influence on the quality of the monocrystalline silicon.

Under the premise of guaranteeing the quality requirement of the quartz crucible, the quartz crucible is often divided into three layers to be prepared for reducing the production cost, namely an outer layer, a middle layer and an inner layer, the quartz crucible is generally prepared in a quartz crucible mold, the quartz crucible mold is cylindrical and comprises a spherical bottom surface, a cylindrical side wall and a smooth circular arc connecting the bottom surface and the side wall, the quartz crucible mold is generally arranged on a mounting seat capable of rotating and inclining, the quartz crucible mold can rotate and incline along with the mounting seat, the mounting seat is inclined, then the mounting seat is rotated, quartz sand is sprayed on the inner wall of the crucible mold by manual feeding at the side wall and the circular arc of the quartz crucible mold, after the quartz sand is fed to a certain thickness, the molding rod is used for pressing until the quartz sand is compacted, and after the preparation of the side wall and the circular arc of the quartz crucible is completed, the mounting seat is adjusted to be in a vertical state, and the bottom of the quartz crucible is prepared by the same manual feeding mode.

The three-layer structure of the quartz crucible is prepared in the mode, the purity of quartz sand used from the outer layer to the inner layer is sequentially increased, and the particles are gradually reduced, and the inner layer of the quartz crucible is in direct contact with the high-temperature silicon solution, so that the quality of a monocrystalline silicon finished product is directly influenced, the preparation requirement of the inner layer of the quartz crucible is higher, and besides the high-purity quartz sand is used, the thickness uniformity of the quartz crucible is ensured to ensure uniform heating.

For the related technology, after the outer layer and the middle layer of the quartz crucible are manually prepared, if a manual feeding mode is still adopted for the side wall and the arc of the inner layer of the quartz crucible, the situation that the thickness of the side wall and the arc of the inner layer of the quartz crucible is uneven due to uneven manual feeding amount and uneven compaction force exists.

Disclosure of Invention

The utility model aims to provide a feeding device for preparing an inner layer of a quartz crucible, which can make the thickness of the side wall and the arc of the prepared inner layer of the quartz crucible uniform.

The utility model provides a feeding device for preparing an inner layer of a quartz crucible, which adopts the following technical scheme:

the utility model provides a feeding device for preparing quartz crucible inlayer, includes installation component and spouts material mechanism, spout material mechanism with installation component fixed connection, spout material mechanism includes charging box, inlet pipe and spouts the stub bar, it includes the shower nozzle shell to spout the stub bar, the material mouth has been seted up on the lateral wall of shower nozzle shell, the one end of inlet pipe with the bottom surface fixed connection of charging box and with the inner space intercommunication of charging box, the other end with shower nozzle shell fixed connection and with the inner space intercommunication of shower nozzle shell, spout the stub bar still including being located inside the shower nozzle shell and can wind a plurality of blades and the first driving piece of the rotatory center pin of shower nozzle shell, first driving piece with shower nozzle shell fixed connection, first driving piece can drive the blade rotates.

Through adopting above-mentioned technical scheme, the operator operates the installation component, place the quartz crucible mould inside with spouting the stub bar, again pour into the charging box with high purity quartz sand, under the action of gravity, high purity quartz sand can get into in the shower nozzle shell through the inlet pipe, fall to the blade surface, after starting first driving piece, the blade is rotatory around the center pin of shower nozzle shell, the blade drives the high purity quartz sand that falls on its surface and rotates, under centrifugal force effect, high purity quartz sand is spouted from spouting the mouth, spout to on the medial wall and the circular arc inner wall of the quartz crucible that have been prepared on the quartz crucible mould, adjust the blowout speed of changing high purity quartz sand through adjusting the output rotational speed of first driving piece, and then control the volume of high purity quartz sand blowout and the thickness of quartz crucible inlayer lateral wall and circular arc department through controlling spouting material time, can guarantee through this kind of mode that the play sand is even, the quartz crucible inlayer of making is compact, need not reuse shaping stick to carry out artifical compaction.

Optionally, one end of the feed pipe fixedly connected with the spray head shell is located in an area above one end, close to the rotation center of the blade, of the blade.

By adopting the technical scheme, the high-purity quartz sand can be fully accelerated, so that the sprayed high-purity quartz sand can be fully adhered to the middle layer of the quartz crucible, and the waste of the high-purity quartz sand is reduced.

Optionally, the material spraying head further comprises an air inlet assembly, the air inlet assembly is fixedly connected with the spray head shell, and the air inlet assembly can be communicated with the external space and the internal space of the spray head shell.

Through adopting above-mentioned technical scheme, the air inlet subassembly can play the effect of balanced shower nozzle shell inside and outside atmospheric pressure to guarantee that the stub bar can evenly go out sand.

Optionally, the air inlet assembly includes the casing, the air intake has been seted up at the top of casing, the air outlet has been seted up to the lateral wall of casing.

Through adopting above-mentioned technical scheme, can make wind equipartition in the shower nozzle shell, reduce the air inlet and strike the unstable possibility of sand that causes on blade surface.

Optionally, the air inlet at the top of the shell is fixedly and hermetically connected with a filter screen, and the filter screen can be communicated with the outside and the inside of the shell.

Through adopting above-mentioned technical scheme, the filter screen can filter great impurity in the air to avoid impurity to enter into in the shower nozzle shell and cause the pollution to high-purity quartz sand.

Optionally, the air inlet assembly further comprises a plurality of baffles, each baffle is vertically arranged in the shell, an air inlet channel is formed between every two baffles, and the air inlet channel is respectively communicated with the air inlet and the air outlet.

By adopting the technical scheme, the air inlet in the spray head shell can be further uniform.

Optionally, the spraying mechanism further comprises a fixing tube, one end of the fixing tube is fixedly connected with the mounting assembly, and the other end of the fixing tube is fixedly connected with the spray head shell.

Through adopting above-mentioned technical scheme, because the inlet pipe is kept away from the one end that is fixed in the installation component and is the free end and install the shower nozzle shell that contains the blade that can rotate, the one end that the installation component was kept away from to the inlet pipe exists the problem that is difficult to stabilize self position after feeding device starts, the reinforcement effect of fixed pipe can guarantee that the inlet pipe is kept away from the one end and the shower nozzle shell of installation component can stabilize self position, improves the stability of sand.

Optionally, the installation component includes switch board, guide tube and connecting pipe, the guide tube is vertical install on the switch board and with switch board sliding connection, the guide tube can for the switch board horizontal slip, connecting pipe one end with guide tube sliding connection, the other end with inlet pipe fixed connection, the connecting pipe can for the guide tube vertical slip.

Through adopting above-mentioned technical scheme, the installation component can be with spouting the stub bar and transfer to quartz crucible mould inside to after feeding device starts, with certain speed upper and lower or horizontal movement spouting the stub bar, make the even adhesion of the quartz sand of spouting the stub bar in quartz crucible's lateral wall and circular arc department.

In summary, the present utility model includes at least one of the following beneficial technical effects:

1. by arranging the feeding box, the feeding pipe and the spraying head and adding rotatable blades in the spraying head, quartz sand in the feeding box can be sprayed out of the feeding device through the spraying head;

2. by arranging the air inlet component, the air pressure balance in the spray head shell can be kept, so that the uniform sand discharge of the spray head is ensured;

3. through setting up can relative switch board horizontal slip's guide tube and can be relative guide tube vertical gliding connecting pipe, and connecting pipe and inlet pipe fixed connection, can move the stub bar to fixed position or drive the stub bar and reciprocate or horizontal migration according to the demand.

Drawings

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

FIG. 2 is a schematic cross-sectional view of an embodiment of the present utility model;

FIG. 3 is a schematic cross-sectional view of an air intake assembly according to an embodiment of the present utility model.

In the figure, 1, a mounting assembly; 11. a control cabinet; 111. a second driving member; 112. a chute; 113. a roller; 12. a guide tube; 121. a slide block; 1211. a first threaded hole; 122. a third driving member; 123. a guide groove; 13. a connecting pipe; 131. a connecting block; 1311. a second threaded hole; 132. a wire outlet; 2. a spraying mechanism; 21. a charging box; 22. a feed pipe; 23. a spray head; 231. a spray head housing; 2311. a spraying port; 232. an air inlet assembly; 2321. a housing; 23211. an air inlet; 23212. an air outlet; 2322. a partition plate; 2323. an air inlet channel; 2324. a filter screen; 233. a blade; 234. a rotating shaft; 235. a first driving member; 24. a fixed tube; 3. a quartz crucible mold; 4. and (5) a mounting seat.

Detailed Description

The present utility model will be described in further detail with reference to fig. 1 to 3.

A feeding device for preparing an inner layer of a quartz crucible, referring to fig. 1 and 2, comprises a mounting assembly 1 and a spraying mechanism 2, wherein the mounting assembly 1 comprises a control cabinet 11, a guide pipe 12 and a connecting pipe 13, the control cabinet 11 can be a cube-shaped metal cabinet, four corners of the bottom surface of the control cabinet 11 are respectively connected with a roller 113 through bolts, the guide pipe 12 and the connecting pipe 13 can be square pipes formed by bending metal plates through metal plates, the guide pipe 12 is vertically arranged on the control cabinet 11, a chute 112 is formed on the top end surface of the control cabinet 11, a second driving piece 111 is connected in the chute 112 through bolts, the second driving piece 111 can be a screw motor, a screw rod of the second driving piece 111 is horizontally arranged, the bottom of the guide pipe 12 is connected with a sliding block 121 through threads, the sliding block 121 is provided with a first threaded hole 1211 which penetrates through the sliding block 121 and can be matched with the screw rod of the second driving piece 111 along the length direction, during installation, the sliding block 121 is matched with the screw rod of the second driving piece 111, the second driving piece 111 is installed in the sliding groove 112 through a bolt, the second driving piece 111 is started to drive the guide pipe 12 to horizontally slide relative to the control cabinet 11, one end of the connecting pipe 13 is integrally formed with the connecting block 131, a guide groove 123 is formed on the side wall of the guide pipe 12 through bending, the connecting block 131 can be in clearance fit with the guide groove 123, a third driving piece 122 is fixedly installed at one end along the length direction of the guide groove 123 through a bolt, the third driving piece 122 can be a screw rod motor, a second threaded hole 1311 which penetrates through the connecting block 131 and can be matched with the screw rod of the third driving piece 122 is formed in the connecting block 131, the connecting block 131 is installed on the screw rod of the third driving piece 122, the connecting pipe 13 can be driven to vertically slide relative to the guide pipe 12 by starting the third driving piece 122, one end of the connecting pipe 13, which is far away from the guide pipe 12, is fixedly connected with the feeding pipe 22 in a welding mode, and an outlet 132 is formed in the bottom surface of one end, which is close to the guide pipe 12, of the connecting pipe 13.

Referring to fig. 2, the spraying mechanism 2 includes a feeding box 21, a feeding pipe 22, a fixing pipe 24 and a spraying head 23, the feeding box 21 may be an inverted cone-shaped shell 2321 with an open top, the spraying head 23 includes a spraying head shell 231, the spraying head shell 231 may be cylindrical in shape, a spraying port 2311 is formed in a side wall of the spraying head shell 231, the spraying head 23 further includes a plurality of blades 233 and a first driving member 235, the blades 233 are positioned in the spraying head shell 231 and can rotate around a central axis of the spraying head shell 231, the blades 233 may be four, one end of each blade 233 is welded with a rotating shaft 234, the first driving member 235 may be a motor, the first driving member 235 is fixed on an inner bottom wall of the spraying head shell 231 through a bolt, the rotating shaft 234 is fixedly connected with an output shaft of the first driving member 235 through a coupling, the blades 233 can be driven to rotate around an output shaft of the first driving member 235 after the first driving member 235 is started, and the feeding device is generally matched with the quartz mold 3 for use, and the mounting seat 4 can drive the quartz mold 3 to rotate around the central axis of the quartz mold 3, so that the crucible mold 3 can rotate at a better crucible mold 233 rotation speed corresponding to the crucible mold rotation speed; one end of the feed pipe 22 is welded to the bottom surface of the feed box 21 and is communicated with the inner space of the feed box 21, one end of the feed pipe 22 welded to the head housing 231 is located in an upper area of the blade 233 near one end of the rotation center thereof, the other end of the feed pipe is fixedly connected to the head housing 231 and is communicated with the inner space of the head housing 231, one end of the fixed pipe 24 is welded to the connecting pipe 13 and is communicated with the connecting pipe 13, the other end of the fixed pipe is welded to the head housing 231 on the top surface of the head housing 231 and is communicated with the inner space of the head housing 231, and an electric wire connected with the first driving member 235 can sequentially pass through the inner space of the fixed pipe 24, the inner space of the connecting pipe 13 and the outlet 132 and then be connected with the control cabinet 11.

Referring to fig. 3, the spray head 23 further includes an air inlet component 232, the air inlet component 232 is located above the blade 233 and is coaxially installed with the blade 233, the air inlet component 232 includes a housing 2321, the housing 2321 is embedded into the top of the spray head housing 231, the outer side wall of the housing 2321 is in welded connection with the top wall of the spray head housing 231, the outer side wall of the housing 2321 can be cylindrical, the cross section of the housing 2321 can be in a circular ring shape, the inner side wall of the housing 2321 is matched with the feed pipe 22, the inner side wall of the housing 2321 is fixedly connected with the outer wall of the feed pipe 22 through welding, an air inlet 23211 is formed in the top of the housing 2321, an air outlet 23212 is formed in the side wall of the housing 2321, a filter screen 2324 is embedded in the air inlet 23211 of the top of the housing 2321, gaps between edges of the filter screen 2324 and edges of the air inlet 23211 are filled through sealing glue, the filter screen 4 can be communicated with the inside of the housing 2321, each partition 2322 is vertically distributed inside the housing 2321, the number of the partition 2322 can be 20, the partition 2322 can be adopted, each partition 2322 and the partition 2322 is evenly distributed between the two radial center of the housing 2323 and the same cross sections of the housing 2323 and the housing 2323, and the air inlet channels are evenly distributed between the two partition 2323 and the air inlet channels and the housing 373.

The implementation principle of the embodiment of the utility model is as follows: after the operator pushes the control cabinet 11 to a fixed position, the second driving part 111 and the third driving part 122 are controlled to transfer the spray head 23 to a designated position inside the quartz crucible mold 3 as required, the first driving part 235 is started and adjusted to a proper output rotation speed, the operator pours high-purity quartz sand into the feeding box 21, then the high-purity quartz sand enters the spray head shell 231 through the feeding pipe 22, is driven to rotate by the blades 233 in the spray head shell 231, is sprayed out from the spray opening 2311 under the action of centrifugal force, contacts with the middle layer of the quartz crucible and is attached to the surface of the middle layer of the quartz crucible.

The embodiments of the present utility model are all preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model, wherein like reference numerals are used to refer to like elements throughout. Therefore: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A feeding device for preparing quartz crucible inlayer, its characterized in that includes installation component (1) and spouts material mechanism (2), spout material mechanism (2) with installation component (1) fixed connection, spout material mechanism (2) including charging box (21), inlet pipe (22) and spouting stub bar (23), spout stub bar (23) including shower nozzle shell (231), spout material mouth (2311) has been seted up on the lateral wall of shower nozzle shell (231), the one end of inlet pipe (22) with the bottom surface fixed connection of charging box (21) and with the inner space intercommunication of charging box (21), the other end with shower nozzle shell (231) fixed connection and with the inner space intercommunication of shower nozzle shell (231), spout stub bar (23) still including be located inside shower nozzle shell (231) and can wind a plurality of blades (233) and first driving piece (235) of the center pin rotation of shower nozzle shell (231), first driving piece (235) with shower nozzle shell (231) fixed connection, first driving piece (233) can rotate.

2. A feeding device for preparing an inner layer of a quartz crucible according to claim 1, wherein the end of the feed pipe (22) fixedly connected to the shower head housing (231) is located in an upper region of the end of the vane (233) close to the rotation center of the vane (233).

3. The feeding device for preparing an inner layer of a quartz crucible according to claim 1, wherein the spray head (23) further comprises an air inlet assembly (232), the air inlet assembly (232) is fixedly connected with the spray head shell (231), and the air inlet assembly (232) can be communicated with an external space and an internal space of the spray head shell (231).

4. A feeding device for preparing an inner layer of a quartz crucible according to claim 3, wherein the air inlet assembly (232) comprises a housing (2321), an air inlet (23211) is formed in the top of the housing (2321), and an air outlet (23212) is formed in the side wall of the housing (2321).

5. The feeding device for preparing an inner layer of a quartz crucible according to claim 4, wherein a filter screen (2324) is fixedly and hermetically connected to the air inlet (23211) at the top of the shell (2321), and the filter screen (2324) can be communicated with the outside and the inside of the shell (2321).

6. The feeding device for preparing an inner layer of a quartz crucible according to claim 5, wherein the air inlet assembly (232) further comprises a plurality of partition boards (2322), each partition board (2322) is vertically arranged inside the casing (2321), an air inlet channel (2323) is formed between every two partition boards (2322), and the air inlet channels (2323) are respectively communicated with the air inlet (23211) and the air outlet (23212).

7. A feeding device for preparing an inner layer of a quartz crucible according to claim 1 or 6, wherein the spraying mechanism (2) further comprises a fixing tube (24), one end of the fixing tube (24) is fixedly connected with the mounting assembly (1), and the other end is fixedly connected with the spray head housing (231).

8. A feeding device for preparing an inner layer of a quartz crucible according to claim 1, characterized in that the mounting assembly (1) comprises a control cabinet (11), a guide tube (12) and a connecting tube (13), the guide tube (12) is vertically mounted on the control cabinet (11) and is in sliding connection with the control cabinet (11), the guide tube (12) can slide horizontally relative to the control cabinet (11), one end of the connecting tube (13) is in sliding connection with the guide tube (12), the other end of the connecting tube is fixedly connected with the feeding tube (22), and the connecting tube (13) can slide vertically relative to the guide tube (12).