CN219315146U

CN219315146U - Device for taking monocrystalline silicon polycrystalline rod

Info

Publication number: CN219315146U
Application number: CN202223245338.2U
Authority: CN
Inventors: 龚小伦; 关树军; 洪华; 路建华; 曾宏强
Original assignee: Leshan Jingyuntong New Material Technology Co ltd
Current assignee: Leshan Jingyuntong New Material Technology Co ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-07-07
Anticipated expiration: 2032-12-05

Abstract

The utility model discloses a device for taking monocrystalline silicon polycrystalline rods, which comprises a support frame and a box, wherein the support frame is arranged in the box, a base plate is arranged between the support frame and the box, the base plate is arranged in the box, and a combined device of the bottom of the box and the base plate is used for bearing the polycrystalline rods in the support frame and the support frame. The support frame is a four-foot structure, and the upper end of the support frame is provided with a hollowed cylinder structure for placing the polycrystal rod. When the single crystal silicon polycrystal rod taking device is used for placing polycrystal rods, the box is used for preventing the polycrystal rods from being in direct contact with metal by using the base plate made of the high-temperature-resistant material, and when the explosion phenomenon occurs, the box is used for holding the broken polycrystal rods, so that the impurity pollution of the broken polycrystal rods is effectively reduced, the secondary use rate is improved, and the production cost of single crystal silicon is reduced.

Description

Device for taking monocrystalline silicon polycrystalline rod

Technical Field

The utility model relates to the technical field of monocrystalline silicon manufacturing, in particular to a device for taking monocrystalline silicon polycrystalline rods.

Background

Solar energy is ideal clean energy, and development of photovoltaic industry has important significance for adjusting energy structure, promoting energy production and consumption mode change and promoting ecological civilization construction. With the continuous decrease of the cost of photovoltaic power generation in recent years, the photovoltaic industry has a wider market space. Low cost, high quality monocrystalline silicon wafers are the core competitiveness of monocrystalline silicon manufacturing enterprises. To further reduce costs, industry takes various cost-reducing measures.

At present, the single crystal silicon polycrystal rod prepared after the single crystal silicon industry is produced is continuously drawn on the basis after the single crystal is broken. The dislocation amount of the polycrystalline rod is accumulated greatly, thermal stress is concentrated, and the polycrystalline rod may be cracked during drawing. After the explosion, the crushed aggregates of the polycrystalline rods are scattered on the ground, so that the impurity pollution of the crushed aggregates of the polycrystalline rods is serious, the quality of the recovered silicon material is affected, and the recovered silicon material cannot be reused; meanwhile, the workload of the subsequent sorting and cleaning procedures of the monocrystalline silicon polycrystalline rod is increased, and the production cost of monocrystalline silicon is increased.

Disclosure of Invention

The utility model aims to provide a device for taking monocrystalline silicon polycrystalline rods, which solves the problems that the polycrystalline rods are in contact with metal, the polycrystalline rods are broken, and the broken polycrystalline rods are polluted and cannot be reused, so that the production cost is increased, by arranging a supporting frame wrapped with a high-temperature-resistant material for placing the polycrystalline rods, a backing plate made of the high-temperature-resistant material is used for supporting the supporting frame and the bottoms of the polycrystalline rods, and a box is used for containing broken or broken polycrystalline rods.

In order to solve the technical problems, the utility model adopts the following scheme:

the utility model provides a get single crystal silicon polycrystal stick device, includes support frame and box, the support frame is arranged in the inside of box the support frame with set up a backing plate between the box, the backing plate is placed in the inside of box, the bottom of box with the backing plate composite set is used for accepting the support frame with the inside polycrystal stick of support frame.

Preferably, the support frame is a tetrapod structure, and the upper end of the support frame is a hollow cylinder structure for placing the polycrystal rod.

Preferably, the hollow cylinder structure has an annular structure, the bottom of support frame is four oblique foot support frames, the one end of oblique foot support frame is connected with the outer peripheral face of annular structure, one end set up in the backing plate above the bottom of box.

Preferably, the hollow cylinder structure is provided with a first annular member and a second annular member, the bottom ends of the supporting frames are four oblique foot supporting frames, each oblique foot supporting frame is composed of a first oblique foot supporting frame and a second oblique foot supporting frame, the first oblique foot supporting frame is connected with the first annular member, the second oblique foot supporting frame is connected with the second annular member, and the bottom ends of the first oblique foot supporting frames are connected with the bottom ends of the second oblique foot supporting frames and are arranged on a base plate above the bottom of the box.

Preferably, a plurality of vertical connectors are provided between the first annular member and the second annular member, connecting the first annular member and the second annular member.

Preferably, the support frame is of a stainless steel structure, and a high-temperature resistant material is wound on the surface of the stainless steel structure.

Preferably, the backing plate is made of a high temperature resistant material.

Preferably, the box is of a PP material structure or a stainless steel structure with a protective layer.

Preferably, a tray is arranged at the bottom of the box, and the tray is made of wood or PVC material.

The utility model has the beneficial effects that:

1. in the device for taking the monocrystalline silicon polycrystalline rods, the polycrystalline rods are supported and fixed by the combined device among the supporting frame, the backing plate and the box, so that the backing plate made of the high-temperature-resistant material is used, the explosion of the polycrystalline rods and the direct contact with metal are avoided, and the metal pollution is reduced.

2. When the explosion occurs, the box is used for holding the crushed polycrystal rod, so that the impurity pollution caused by the crushed polycrystal rod falling to the ground is effectively reduced, the secondary utilization rate of the crushed polycrystal rod is improved, and the production cost of monocrystalline silicon is reduced.

Drawings

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

FIG. 2 is a schematic view of a polycrystalline rod;

FIG. 3 is a schematic structural view of a support frame;

FIG. 4 is a schematic view of another support frame;

FIG. 5 is a schematic structural view of a backing plate;

FIG. 6 is a schematic view of the structure of the box;

fig. 7 is a schematic structural view of the tray.

Reference numerals: 1-polycrystal rod, 2-support frame, 21-annular structure, 211-first annular component, 213-second annular component, 22-tripod support frame, 221-first tripod support frame, 223-second tripod support frame, 23-vertical connector, 3-backing plate, 4-box, 5-tray.

Detailed Description

The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.

In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and for simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "configured," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Examples

Fig. 1 is a schematic structural view of the present utility model. In a single crystal silicon polycrystal rod taking apparatus, as shown in FIG. 1, a holding frame 2 and a cassette 4 are included, the holding frame 2 being placed inside the cassette 4. A backing plate 3 is arranged between the support frame 2 and the box 4, the backing plate 3 is arranged in the box 4, and the combination device of the bottom of the box 4 and the backing plate 3 is used for bearing the support frame 2 and the polycrystal rod 1 in the support frame 2. After the single crystal is broken, dislocation amount of the polycrystalline rod which is continuously drawn on the basis of the broken line is accumulated greatly, thermal stress is concentrated, the polycrystalline rod can generate explosion during the drawing and the drawing ending process, and a supporting device is needed for fixing the polycrystalline rod after the drawing is ended. The utility model can fix the polycrystal rod 1 by arranging the supporting frame 2, thereby preventing the polycrystal rod 1 from tilting; the backing plate 3 and the box 4 are further used for receiving the polycrystalline rods 1 and the supporting frame 2, and the bottoms of the polycrystalline rods 1 can be contacted with the backing plate 3 through the supporting frame 2 so as to prevent the polycrystalline rods 1 from being polluted by metal; when the multi-crystal bars burst, the box 4 can hold the crushed multi-crystal bars, so that the crushed multi-crystal bars are prevented from flying to the ground and being polluted by impurities.

Further, as shown in fig. 3, the supporting frame 2 is a four-foot supporting structure, which can better increase the stability of the supporting frame 2, and effectively prevent the polycrystalline rod 1 from tilting; the upper end of the supporting frame 2 is of a hollow cylinder structure and is used for placing the polycrystal rod 1. The support frame 2 is placed in the box 4 and can freely move according to the descending position of the polycrystalline rod 1, so that the polycrystalline rod 1 is ensured to stand in a circle of a cylindrical structure of the support frame 2. The cylindrical structure of the supporting frame 2 may be selected to have a proper diameter according to the size of the polycrystalline rod 1.

Further, the hollow cylindrical structure is provided with an annular structure 21, the bottom end of the supporting frame 2 is provided with four oblique foot supporting frames 22, one end of each oblique foot supporting frame 22 is connected with the outer peripheral surface of the annular structure, and the other end of each oblique foot supporting frame is arranged on the base plate 3 above the bottom of the box 4. The width and diameter of the ring-shaped structure 21 may be made according to the size of the actual polycrystalline rod 1, and the oblique foot support shelf 22 may be made according to the width of the ring-shaped structure.

Further, the hollowed cylindrical structure may further include a first ring member 211 and a second ring member 213, where the first ring member 211 and the second ring member 213 are parallel, so as to ensure that the polycrystalline shoe upper rod may be vertically erected in the support frame 2. The bottom of support frame 2 is four oblique foot support frames 22, and oblique foot support frames 22 can be by first oblique foot support frame 221 and second oblique foot support frame 223 constitution, and first oblique foot support frame 221 is connected with first annular component 211, and second oblique foot support frame 223 is connected with second annular component 213, and the bottom of first oblique foot support frame 221 is connected with the bottom of second oblique foot support frame 223 to set up in backing plate 3 above the bottom of box 4, first oblique angle support frame and second oblique angle support frame adopt fretwork device, can effectively practice thrift manufacturing cost.

Further, a plurality of vertical connectors 23 are provided between the outer circumferential surfaces of the first and

second ring members

211 and 213 for connecting the first and

second ring members

211 and 213, so that the stability of the support frame 2 can be effectively ensured.

Further, the supporting frame 2 is of a stainless steel structure, and a high temperature resistant material is wound on the surface of the stainless steel supporting frame 2, so that the polycrystalline rod 1 placed in the supporting frame 2 is prevented from being contacted with the stainless steel material, metal pollution is generated, and the quality of the polycrystalline rod 1 is prevented from being influenced. Specific high temperature resistant materials and winding layers, such as high temperature resistant adhesive tapes or other high temperature resistant materials, can be selected according to actual needs.

Further, as shown in fig. 4, the backing plate 3 is made of a high temperature resistant material, specifically, a tetrafluoro plate or other high temperature resistant material. The backing plate 3 is matched with the supporting frame 2 to support the polycrystalline rod 1 and bear heat conducted by the polycrystalline rod 1, so that heat transfer between the polycrystalline rod 1 and the box 4 is effectively isolated, and further, the phenomenon of explosion of the polycrystalline rod is prevented.

Further, as shown in fig. 5, the box 4 is of a PP material structure or a stainless steel structure with a protective layer, and the box 4 is used for accommodating the broken pieces of the polycrystalline rod, so that the problem that the broken pieces of the polycrystalline rod in the box 4 are directly contacted with metal to cause pollution, and cannot be used for a second time is effectively avoided. The height of the box 4 is selected to be the optimal height according to practical conditions, and the higher the box 4 is, the more effectively the broken pieces of the broken polycrystalline rods are prevented from splashing out, and more broken pieces of the polycrystalline rods can be accommodated.

Further, as shown in fig. 6, a tray 5 is provided at the bottom of the box 4, and the tray 5 is made of wood or PVC material. The tray 5 is arranged to facilitate the fork truck to transfer the single crystal silicon polycrystal rod taking device to a specific position integrally.

Further, according to the device for taking the monocrystalline silicon polycrystal rod 1, the tray 5, the box 4, the base plate 3 and the supporting frame 2 are placed in sequence from bottom to top, and the polycrystal rod 1 is placed after the device is installed.

The foregoing description of the preferred embodiment of the utility model is not intended to limit the utility model in any way, but rather to cover all modifications, equivalents, improvements and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a get monocrystalline silicon polycrystal stick device, its characterized in that includes support frame (2) and box (4), support frame (2) are arranged in the inside of box (4) support frame (2) with set up a backing plate (3) between box (4), backing plate (3) are placed in the inside of box (4), the bottom of box (4) with backing plate (3) composite set is used for accepting support frame (2) with inside polycrystal stick (1) of support frame (2).

2. The device for taking the monocrystalline silicon polycrystal rods according to claim 1, wherein the supporting frame (2) is of a tetrapod structure, and the upper end of the supporting frame (2) is of a hollowed cylindrical structure for placing the polycrystal rods (1).

3. The device for taking the monocrystalline silicon polycrystalline rod (1) according to claim 2, wherein the hollowed cylindrical structure is provided with an annular structure (21), the bottom end of the supporting frame (2) is provided with four oblique foot supporting frames (22), one end of each oblique foot supporting frame (22) is connected with the peripheral surface of the annular structure (21), and the other end of each oblique foot supporting frame is erected on a base plate (3) arranged on the bottom of the box (4).

4. The monocrystalline silicon polycrystal rod-taking device according to claim 2, wherein the hollowed cylindrical structure is provided with a first annular component (211) and a second annular component (213), the bottom end of the supporting frame (2) is provided with four oblique foot supporting frames (22), each oblique foot supporting frame (22) is composed of a first oblique foot supporting frame (221) and a second oblique foot supporting frame (223), the first oblique foot supporting frame (221) is connected with the first annular component (211), the second oblique foot supporting frame (223) is connected with the second annular component (213), the bottom end of the first oblique foot supporting frame (221) is connected with the bottom end of the second oblique foot supporting frame (223), and the oblique foot supporting frames are erected on a base plate (3) above the bottom of the box (4).

5. The apparatus for taking a single crystal silicon polycrystal rod according to claim 4, wherein a plurality of vertical connectors (23) are provided between the first annular member (211) and the second annular member (213), and the first annular member (211) and the second annular member (213) are connected.

6. The device for taking single crystal silicon polycrystal rods according to claim 4, wherein the supporting frame (2) is of a stainless steel structure, and a high temperature resistant material is wound on the surface of the stainless steel structure.

7. A device for taking single crystal silicon polycrystal rod according to claim 4, characterized in that the backing plate (3) is made of a high temperature resistant material.

8. The device for taking single crystal silicon polycrystal rod according to claim 4, wherein the box (4) is a PP material structure or a stainless steel structure with a protective layer.

9. The device for taking single crystal silicon polycrystal rod according to claim 4, wherein a tray (5) is provided at the bottom of the box (4), and the tray (5) is made of wood or PVC material.