CN220149232U - Automatic water extraction crushing and screening production line for crystalline silicon - Google Patents
Automatic water extraction crushing and screening production line for crystalline silicon Download PDFInfo
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- CN220149232U CN220149232U CN202321735866.8U CN202321735866U CN220149232U CN 220149232 U CN220149232 U CN 220149232U CN 202321735866 U CN202321735866 U CN 202321735866U CN 220149232 U CN220149232 U CN 220149232U
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- Prior art keywords
- screening
- crushing
- production line
- crystalline silicon
- water extraction
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- 238000012216 screening Methods 0.000 title claims abstract description 46
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 229910021419 crystalline silicon Inorganic materials 0.000 title claims abstract description 17
- 238000003809 water extraction Methods 0.000 title claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007921 spray Substances 0.000 claims abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 5
- 230000001681 protective effect Effects 0.000 claims abstract description 3
- 238000007885 magnetic separation Methods 0.000 claims description 12
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 230000009194 climbing Effects 0.000 claims description 9
- 238000004140 cleaning Methods 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 239000002994 raw material Substances 0.000 abstract description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract description 11
- 229910052710 silicon Inorganic materials 0.000 abstract description 11
- 239000010703 silicon Substances 0.000 abstract description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002210 silicon-based material Substances 0.000 description 33
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229920005591 polysilicon Polymers 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Landscapes
- Silicon Compounds (AREA)
Abstract
The utility model discloses an automatic water extraction crushing and screening production line for crystalline silicon, which comprises a feeding device, an oxygen removal replacement device, a heating device, a water cooling device, an air cooling device and a crushing and screening system which are sequentially connected, wherein the heating device is divided into a preheating section and a heating section, and a protective gas spray head is arranged in the preheating section. The utility model has the beneficial effects that: under the condition of automatic crushing and screening of the silicon rod raw materials, the crushing loss of the silicon rod raw materials is reduced, so that the production efficiency is ensured, and meanwhile, the corresponding labor and raw material cost are saved.
Description
Technical Field
The utility model relates to the technical field of silicon material production, in particular to an automatic water extraction crushing and screening production line for crystalline silicon.
Background
Monocrystalline silicon and polycrystalline silicon belong to crystalline silicon. Under the large background of the high-speed development of the current domestic solar energy industry, the demand of the photovoltaic new installation quantity which exceeds the market expectation continuously drives the assembly to be vigorous, so that the demand of the upstream polycrystalline silicon and monocrystalline silicon raw materials is greatly increased, and the domestic polycrystalline silicon and monocrystalline silicon spot market is continuously supplied with tension. The production of high quality, clean and efficient polysilicon and monocrystalline silicon has become an important development strategy for various enterprises.
In the existing crystalline silicon actual production, the silicon rod raw material is produced by adopting a direct crushing and screening mode, the method is simple and rough, the crushing loss reaches 3.5%, and compared with the manual crushing and screening of the silicon rod raw material, the loss rate is improved by 3-5 times, and the loss is very high. But adopt the manual work to carry out crushing screening to the silicon rod raw materials, degree of automation is low, and production efficiency greatly reduced, and very big extravagant manpower.
Therefore, it is necessary to provide an automatic water extraction crushing and screening production line for crystalline silicon, which reduces crushing loss of the silicon rod raw material under the condition of automatic crushing and screening of the silicon rod raw material, thereby saving corresponding manpower and raw material cost while ensuring production efficiency.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an automatic water extraction crushing and screening production line for crystalline silicon, which reduces the crushing loss of the silicon rod raw material under the condition of automatic crushing and screening of the silicon rod raw material, thereby saving corresponding manpower and raw material cost while ensuring the production efficiency.
The aim of the utility model is realized by the following technical scheme: the utility model provides an automatic water extraction breakage screening production line of crystalline silicon, includes feeding device, deoxidization replacement device, heating device that links to each other in proper order, water cooling plant, forced air cooling device and breakage screening system, heating device divide into preheating section and heating section, be provided with the shielding gas shower nozzle in the preheating section.
The crushing and screening system comprises a crushing device connected with an air cooling device, the crushing device is connected with a screening device, and a magnetic separation device is arranged at the outlet of the screening device.
And a climbing conveying device is arranged between the crushing device and the screening device.
The outlet of the screening device is also communicated with a circular vibrating screen.
And a climbing magnetic separation device is also arranged between the circular vibrating screen and the screening device.
The water cooling device comprises a water cooling part and a cleaning part.
The protective gas spray head is a nitrogen spray head.
The beneficial effects of the utility model are as follows:
(1) The silicon material is subjected to deoxidization replacement treatment, heating treatment, water cooling treatment and air cooling treatment in sequence, so that the silicon material obtains extremely large inter-crystal stress, and then is sent into a crushing and screening system for crushing and screening, so that dust and particles generated by physical striking or hammering of the silicon rod are reduced, and the crushing loss rate of the silicon rod is greatly reduced.
(2) In order to avoid direct heating to enable the silicon material not to be capable of being suddenly adapted to the maximum inter-crystal stress generated in the silicon material, so that the silicon material is directly damaged, when the silicon material is heated, the silicon material is preheated, and then is heated, so that the silicon material can well realize the maximum inter-crystal stress generated in the silicon material, and the silicon material is prevented from being directly damaged when being heated.
Drawings
FIG. 1 is a schematic diagram of the connection of the present utility model;
in the figure, a 1-feeding device, a 2-deoxidizing replacement device, a 3-heating device, a 301-preheating section, a 302-heating section, a 4-water cooling device, a 401-water cooling part, a 402-cleaning part, a 5-air cooling device, a 6-crushing device, a 7-climbing conveying device, an 8-screening device, a 9-magnetic separation device, a 10-climbing magnetic separation device and an 11-circular vibrating screen are arranged.
Detailed Description
The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present utility model, based on the embodiments of the present utility model.
In the following description, the terms "left", "right", "upper", "lower", "front", "rear", "inner" and "outer" are relative terms, and are not intended to be exhaustive.
An automatic water extraction crushing and screening production line for crystalline silicon, referring to fig. 1, comprises a feeding device 1, wherein the feeding device 1 is a silicon material feeding device commonly used by a person skilled in the art, and has no special part.
An oxygen removal displacement device 2 is arranged at the outlet of the feeding device 1. The feeding device 1 sequentially feeds the silicon materials into the deoxidizing and replacing device 2, and the deoxidizing and replacing device 2 carries out automatic deoxidizing and replacing operation on the silicon materials. The oxygen removal replacement device 2 is also a device commonly used in existing devices, and is not particularly limited.
The outlet of the deoxidizing displacement device 2 is provided with a heating device 3. In the present embodiment, the heating device 3 is a heating furnace, the first half of which is a preheating section 301, and the second half of which is a heating section 302. A nitrogen nozzle is arranged on the front half section of the heating furnace. When the silicon material enters the heating furnace from the deoxidizing and replacing device 2, the silicon material is preheated in the preheating section 301, and nitrogen is sprayed out of the nitrogen spray head to preheat and protect the silicon material during preheating. When preheated to the corresponding temperature, the silicon material enters the heating section 302 for heat treatment.
The outlet of the heating device 3 is provided with a water cooling device 4. The front half section of the water cooling device 4 is a water cooling part 401, and the rear half section is a cleaning part 402. A shower head is provided in the cleaning section 402. After the silicon material is heated by the heating device 3, the silicon material in the heating device 3 is taken out by a manipulator beside the heating device and put into the water cooling part 401 for quenching. After a predetermined time, the silicon material is sent to the cleaning section 402 for shower cleaning.
An air cooling device 5 is arranged at the outlet of the water cooling device 4. The air cooling device 5 is a commercially available air cooling device. And the mechanical arm beside the water cooling device 4 places the cleaned silicon material into the air cooling device 5 for air cooling and drying, and finally, the embrittlement effect of the silicon material is achieved.
The outlet of the air cooling device 5 is provided with a crushing device 6. The air-cooled and dried silicon material is sent to a crushing device 6 for crushing treatment. The crushing device 6 is a commercially available crusher.
The outlet of the crushing device 6 is provided with a climbing conveying device 7. Since the screening device 8 has a certain height, the climbing conveyor 7 transports the silicon material to the inlet of the screening device 8.
The screening device 8 is a three-stage linear vibration screening machine. It has three outlets. The three outlets are respectively communicated with two magnetic separation devices 9 and a climbing magnetic separation device 10. The three-stage linear vibration screening machine is used for screening the crushed silicon materials into two silicon materials with qualified sizes and one silicon material with unqualified size. Two silicon materials with proper sizes come to the magnetic separation device 9, and the magnetic separation device 9 separates out magnetic substances in the silicon materials. And conveying the silicon materials with unqualified sizes to a circular vibrating screen 11 through a climbing magnetic separation device 10. The climbing magnetic separation device 10 separates the doped magnetic substances in the silicon material conveying process. The circular vibrating screen 11 performs screening operation on the residual silicon material.
The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.
Claims (7)
1. The utility model provides an automatic water extraction breakage screening production line of crystalline silicon, its characterized in that, including feed arrangement (1), deoxidization replacement device (2), heating device (3) that link to each other in proper order, water cooling plant (4), air cooling device (5) and breakage screening system, heating device (3) divide into preheating section (301) and heating section (302), be provided with the shielding gas shower nozzle in preheating section (301).
2. The crystalline silicon automatic water extraction crushing and screening production line according to claim 1, wherein: the crushing and screening system comprises a crushing device (6) connected with an air cooling device (5), the crushing device (6) is connected with a screening device (8), and a magnetic separation device (9) is arranged at the outlet of the screening device (8).
3. The crystalline silicon automatic water extraction crushing and screening production line according to claim 2, wherein: a climbing conveying device (7) is arranged between the crushing device (6) and the screening device (8).
4. The crystalline silicon automatic water extraction crushing and screening production line according to claim 2, wherein: the outlet of the screening device (8) is also communicated with a circular vibrating screen (11).
5. The automatic water extraction crushing and screening production line for crystalline silicon according to claim 4, wherein: a climbing magnetic separation device (10) is also arranged between the circular vibrating screen (11) and the screening device (8).
6. The crystalline silicon automatic water extraction crushing and screening production line according to claim 1, wherein: the water cooling device (4) comprises a water cooling part (401) and a cleaning part (402).
7. The crystalline silicon automatic water extraction crushing and screening production line according to claim 1, wherein: the protective gas spray head is a nitrogen spray head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735866.8U CN220149232U (en) | 2023-07-04 | 2023-07-04 | Automatic water extraction crushing and screening production line for crystalline silicon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321735866.8U CN220149232U (en) | 2023-07-04 | 2023-07-04 | Automatic water extraction crushing and screening production line for crystalline silicon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220149232U true CN220149232U (en) | 2023-12-08 |
Family
ID=89014163
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321735866.8U Active CN220149232U (en) | 2023-07-04 | 2023-07-04 | Automatic water extraction crushing and screening production line for crystalline silicon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220149232U (en) |
-
2023
- 2023-07-04 CN CN202321735866.8U patent/CN220149232U/en active Active
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