CN212143420U - Polycrystalline silicon screening device - Google Patents
Polycrystalline silicon screening device Download PDFInfo
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- CN212143420U CN212143420U CN201922480309.6U CN201922480309U CN212143420U CN 212143420 U CN212143420 U CN 212143420U CN 201922480309 U CN201922480309 U CN 201922480309U CN 212143420 U CN212143420 U CN 212143420U
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Abstract
The utility model provides a polysilicon screening device, which comprises a top material containing device, an internal filtering device, a crushed material collecting device and a bottom supporting device, wherein the material containing device comprises a screening box, a sealing cover and a screening hopper at the bottom of the screening box; the filter device comprises a filter screen and a dust suction port, and the screening box is externally connected with a centralized evacuating device through the dust suction port to realize dust collection in the screening process; the supporting device comprises a screening vehicle body, a screening vehicle pushing handle and screening vehicle wheels, wherein the screening vehicle pushing handle is arranged on the side face of the screening vehicle body. Pouring the raw materials into the screening box, connecting the dust suction pipe into the dust suction port, shaking to enable the crushed aggregates in the screening box to pass through the filter screen to enter the crushed aggregates collecting device, and uniformly processing. The utility model prevents secondary pollution, has no pollution to the environmental space of the clean room, and does not generate dust; the single crystal crystallization rate is improved, and the stable quality is ensured.
Description
Technical Field
The utility model relates to a polycrystalline silicon screening device, concretely relates to utilize the vibration to carry out the screening of polycrystalline silicon and make raw materials and the material that contacts not take place the metal and stain.
Background
In the prior art, dust is accumulated in the raw material bag due to mutual friction and collision of the raw materials in the raw material bag in the processes of crushing and transporting the polycrystalline silicon raw materials, and the dust attached to a large raw material enters the raw material bag after the raw materials are loaded into a quartz crucible. The dust is very easy to volatilize and difficult to melt in vacuum and high temperature states, and single crystal bracts are very easy to break, so that the yield is wasted. Meanwhile, the raw materials have extremely high purity and cannot contact with metal products and external spaces, and raw material screening is mostly not adopted in the current industry. In the prior art, metal contamination is easy to occur between the raw material and the contacted material, dust and particles attached to the raw material are not easy to clean, and the technical problems of secondary pollution and the like exist.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a polysilicon screening device, which is particularly suitable for avoiding metal contamination between raw materials and contacted materials; dust and particles attached to the raw materials can be cleaned in time.
The utility model adopts the technical proposal that:
a polycrystalline silicon screening device comprises a material containing device, a filtering device, a crushed material collecting device and a supporting device, wherein the material containing device is arranged on the supporting device and used for containing materials to be screened, the filtering device is arranged in the material containing device and used for filtering the materials to be screened, and the crushed material collecting device is arranged at the bottom of the material containing device and used for collecting the crushed materials after screening;
the material containing device comprises a screening box, a sealing cover arranged at the top of the screening box and a screening hopper arranged at the bottom of the screening box;
the filtering device comprises a filter screen and a dust suction port, the filter screen is tiled in the screening box, and crushed aggregates in the screening box are filtered and then enter the crushed aggregate collecting device; the dust suction port is arranged at the top of the screening box, and the screening box is externally connected with a centralized evacuating device through the dust suction port to realize dust collection in the screening process;
the supporting device comprises a screening vehicle body, a screening vehicle pushing handle and screening vehicle wheels arranged at the bottom of the screening vehicle, wherein the screening vehicle pushing handle is arranged on the side surface of the screening vehicle body.
Further, sieve material funnel is the back taper, sieve material device one end is connected sieve workbin, the other end is connected crushed aggregates collection device.
Furthermore, a screening cover handle is arranged on the sealing cover, and a lock catch is arranged at the edge of the sealing cover and used for tightly fastening the sealing cover on the screening box.
Further, the sieve workbin with sieve workbin car body passes through the spring and connects, realizes that the manual in-process that rocks of sieve material, the sieve workbin has flexible space.
Furthermore, the aperture of the mesh of the filter screen is 0.5mm-3 mm.
The utility model has the advantages and positive effects that: due to the adoption of the technical scheme, the screening box adopts the PP material to prevent metal from contacting with the raw materials; screening out raw material dust by using the filter screen; the dust is absorbed by adopting a centralized evacuation mode, so that secondary pollution is prevented, the environmental space of the clean room is not polluted, and no dust is generated; the single crystal crystallization rate is improved, and the stable quality is ensured.
Drawings
FIG. 1 is a schematic front view of a material sieving device according to an embodiment of the present invention
FIG. 2 is a schematic plan view of a material sieving device according to an embodiment of the present invention
FIG. 3 is a schematic side view of a material sieving device according to an embodiment of the present invention
In the figure:
1. sieve material lid handle 2, hasp 3, sieve workbin handle
4. Material screening vehicle push handle 5, material screening vehicle body 6 and material screening vehicle wheel
7. Dust absorption mouth 8, sealed lid 9, sieve material case
10. Spring 11, screening funnel 12, filter screen
13. Crushed aggregates collection device
Detailed Description
In describing the embodiments of the present invention, the view angle of fig. 1 is defined as a schematic front view of a polysilicon sieving apparatus. In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "left", "right", "side", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
As shown in fig. 1, a polysilicon screening device comprises a material containing device, a filtering device, a crushed material collecting device and a supporting device, wherein the material containing device is arranged on the supporting device and used for containing materials to be screened, the filtering device is arranged in the material containing device and used for filtering the materials to be screened, the crushed material collecting device is arranged at the bottom of the material containing device and used for collecting the crushed materials after screening is completed, the material containing device comprises a screening box 9, a sealing cover 8 and a screening funnel 11 arranged at the bottom of the screening box 9, the screening funnel 11 is preferably in an inverted cone shape, one end of the screening device is connected with the screening box, and the other end of the screening device is connected with the crushed material collecting device; the filtering device comprises a filter screen 12 and a dust suction port 7, the filter screen 12 is tiled inside the screening box 9, so that the crushed aggregates in the screening box 9 are filtered and then enter the crushed aggregate collecting device 13, and referring to a side schematic view of the screening device in the embodiment of the invention shown in fig. 3, the preferred crushed aggregate collecting device of the utility model is a crushed aggregate collecting box screwed at the bottom of the screening hopper 11; dust absorption mouth 7 sets up in sieve workbin 9 tops, and sieve workbin 9 passes through dust absorption mouth 7 external a centralized evacuating device, realizes the dust collection of sieve material in-process.
The supporting device comprises a screening trolley body 5, a screening trolley pushing handle 4 and screening trolley wheels 6, wherein the screening trolley pushing handle 4 is arranged on the side surface of the screening trolley body 5, and the whole polycrystalline silicon screening device is convenient to move. Referring to the top view of the polysilicon sieving device shown in fig. 2, the sealing cover 8 is arranged at the top of the sieving box 9, the sieving cover handle 1 is arranged on the sealing cover 8, the sieving box handle 3 is arranged on the side surface of the sieving box 9, and the lock catch 2 is arranged at the edge of the sealing cover 8 and used for fastening the sealing cover 8 on the sieving box 9. The screening box 9 is connected with the screening vehicle body 5 through the spring 10, so that the screening box 9 has a telescopic space in the manual shaking process. The utility model discloses well filter screen 12's mesh aperture is 0.5mm-3mm, preferred the utility model discloses a filter screen 12, sealed lid 8 and sieve workbin 9 preferred all adopt PP material preparation in the aperture of 2 mm. In the process of screening materials, when the box body of the screening box 9 and the sealing cover 8 are in direct or indirect contact with silicon materials, metal pollution materials cannot be generated.
The use method of the polysilicon sieving device of the present invention is described below with reference to the specific example, firstly, the sealing cover 8 is opened, the raw material is poured into the sieving box 9, the sealing cover 8 is covered, and the sealing cover 8 is locked by the lock catch 2; the dust suction port 7 is externally connected with the centralized evacuating device; then, the screening box handle 3 is held to shake, and the shaking process can be realized by connecting an automatic shaking device; crushed aggregates in the sieve box 9 enter a crushed aggregate collecting device 13 through a filter screen 12; finally, the materials are poured out from the material screening box 9 for use after the materials are screened.
The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The polycrystalline silicon screening device is characterized by comprising a containing device, a filtering device, a crushed aggregate collecting device and a supporting device, wherein the containing device is arranged on the supporting device and used for containing materials to be screened;
the material containing device comprises a screening box, a sealing cover arranged at the top of the screening box and a screening hopper arranged at the bottom of the screening box;
the filtering device comprises a filter screen and a dust suction port, the filter screen is tiled in the screening box, and crushed aggregates in the screening box are filtered and then enter the crushed aggregate collecting device; the dust suction port is arranged at the top of the screening box, and the screening box is externally connected with a centralized evacuating device through the dust suction port to realize dust collection in the screening process;
the supporting device comprises a screening vehicle body, a screening vehicle pushing handle and screening vehicle wheels arranged at the bottom of the screening vehicle, wherein the screening vehicle pushing handle is arranged on the side surface of the screening vehicle body.
2. The polysilicon screening device as claimed in claim 1, wherein the screening hopper is in the shape of an inverted cone, one end of the screening device is connected to the screening box, and the other end of the screening device is connected to the crushed material collecting device.
3. The polysilicon sieving device of claim 1, wherein the sealing cover is provided with a sieving cover handle, and the edge of the sealing cover is provided with a lock catch for fastening the sealing cover on the sieving box.
4. The polycrystalline silicon screening device according to claim 1, wherein the screening box is connected with the screening vehicle body through a spring, so that the screening box has a telescopic space in a manual shaking process of the screening material.
5. The polysilicon sieving device of claim 1, wherein the mesh opening of the sieve is 0.5mm to 3 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480309.6U CN212143420U (en) | 2019-12-31 | 2019-12-31 | Polycrystalline silicon screening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922480309.6U CN212143420U (en) | 2019-12-31 | 2019-12-31 | Polycrystalline silicon screening device |
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| Publication Number | Publication Date |
|---|---|
| CN212143420U true CN212143420U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922480309.6U Active CN212143420U (en) | 2019-12-31 | 2019-12-31 | Polycrystalline silicon screening device |
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| CN (1) | CN212143420U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001562A (en) * | 2019-12-31 | 2020-04-14 | 内蒙古中环领先半导体材料有限公司 | Polycrystalline silicon screening device and using method thereof |
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2019
- 2019-12-31 CN CN201922480309.6U patent/CN212143420U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111001562A (en) * | 2019-12-31 | 2020-04-14 | 内蒙古中环领先半导体材料有限公司 | Polycrystalline silicon screening device and using method thereof |
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Effective date of registration: 20220413 Address after: 010070 No.15 Baolier street, Saihan District, Hohhot, Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Central Leading Semiconductor Materials Co.,Ltd. Patentee after: Central leading semiconductor materials Co., Ltd Address before: 010070 No.15 Baolier street, Saihan District, Hohhot, Inner Mongolia Autonomous Region Patentee before: Inner Mongolia Central Leading Semiconductor Materials Co.,Ltd. |
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