CN212952442U

CN212952442U - Monocrystalline silicon guide cylinder

Info

Publication number: CN212952442U
Application number: CN202021614152.8U
Authority: CN
Inventors: 陈兴友; 赵万方
Original assignee: Xi'an Gemei Metal Material Co ltd
Current assignee: Xi'an Gemei Metal Material Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-04-13
Anticipated expiration: 2030-08-05

Abstract

The utility model relates to a monocrystalline silicon technical field provides a monocrystalline silicon guide cylinder. The utility model discloses monocrystalline silicon guide cylinder holds the silicon material through the barrel, realizes the guide through the cooperation of barrel and core bar and bottom of a boiler, sets up the tungsten net internal stay through the inner wall at the barrel for the silicon material bumps with the tungsten net internal stay when striking the barrel in the barrel and collides, reduces the contact collision of silicon material and barrel inner wall, reduces the barrel inner wall and drops impurity influence silicon material's purity.

Description

Monocrystalline silicon guide cylinder

Technical Field

The utility model relates to a monocrystalline silicon technical field specifically relates to a monocrystalline silicon guide cylinder.

Background

The monocrystalline silicon industry pursues high purity, the purity of 7N can be achieved at present, and the requirement of the purity of 7N on refining equipment is extremely high. During traditional guide cylinder guide, the silicon material is easy to the inner wall fish tail of barrel for the impurity that drops of barrel inner wall, impurity make 7N purity receive very big influence.

Disclosure of Invention

The embodiment of the utility model provides a monocrystalline silicon guide cylinder for the pollution that monocrystalline silicon received in the guide cylinder reduces, can improve monocrystalline silicon's purity. The specific technical scheme is as follows:

the monocrystalline silicon guide cylinder comprises a cylinder body, a core rod and a pot bottom, wherein the core rod is positioned in the cylinder body, the bottom end of the core rod is connected with the pot bottom, and the top end of the core rod extends out of the cylinder body; when the bottom end of the cylinder body is lapped with the pan bottom, the pan bottom shields the bottom end opening of the cylinder body; the inner wall of the cylinder body is provided with a tungsten net inner support.

Furthermore, the top of the core rod is fixedly connected with a hanging ring.

Furthermore, the top end of the cylinder body is fixedly connected with an upper flange, and the upper flange is connected with the core rod in a sliding or rotating mode.

Furthermore, a transverse plate is arranged on the inner side of the upper flange, a first through hole is formed in the transverse plate, the axis of the first through hole is overlapped with the axis of the cylinder, and the core rod penetrates through the first through hole.

Further, the transverse plate is of a fan-shaped structure.

Further, the periphery of barrel has cup jointed down the flange, fixedly connected with at least a pair of branch between upper flange and the lower flange.

Further, the supporting rods are uniformly distributed along the periphery of the cylinder.

The pot bottom is connected with the bottom end of the core rod in a lap joint mode, and the bottom end of the pot bottom is fixedly connected with the bottom end of the core rod.

The baffle is positioned at the top end of the upper flange, the core rod penetrates through the baffle, and the baffle can rotate around the core rod; when the baffle rotates, the opening of the upper flange can be shielded.

Furthermore, the baffle is of a circular plate structure with a third through hole in the center and a notch at the edge, and the core rod penetrates through the third through hole.

The utility model discloses monocrystalline silicon guide cylinder holds the silicon material through the barrel, realizes the guide through the cooperation of barrel and core bar and bottom of a boiler, sets up the tungsten net internal stay through the inner wall at the barrel for the silicon material bumps with the tungsten net internal stay when striking the barrel in the barrel and collides, reduces the contact collision of silicon material and barrel inner wall, reduces the barrel inner wall and drops impurity influence silicon material's purity.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a schematic side view of a monocrystalline silicon guide cylinder according to an embodiment of the present invention.

Fig. 2 is a schematic view of the structure of the monocrystalline silicon guide cylinder according to the embodiment of the present invention.

Fig. 3 is a schematic view of a baffle structure of a monocrystalline silicon guide cylinder according to an embodiment of the present invention.

Fig. 4 is a schematic view of a pot bottom structure of a monocrystalline silicon guide cylinder according to an embodiment of the present invention.

Fig. 5 is a schematic view of an upper flange structure of a monocrystalline silicon guide cylinder according to an embodiment of the present invention.

FIG. 6 is a schematic view of the hanging needle structure of the single crystal silicon material guiding cylinder of the present invention

Wherein, 1, a cylinder body; 2. a core bar; 3. a pan bottom; 31. a second through hole; 4. a hoisting ring; 5. an upper flange; 51. a transverse plate; 52. a first through hole; 53. an opening; 6. a lower flange; 7. a strut; 8. suspending a needle; 9. a baffle plate; 91. a third through hole; 92. and (4) a notch.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. The terms "first" or "second", etc. are used merely to distinguish the same type of component or device, and do not represent limitations.

As shown in fig. 1-6, the monocrystalline silicon guide cylinder according to the embodiment of the present invention includes a cylinder body 1, a core rod 2 and a pot bottom 3, wherein the core rod 2 is located in the cylinder body 1, the bottom end of the core rod 2 is connected with the pot bottom 3, and the top end of the core rod 2 extends out of the cylinder body 1; when the bottom end of the cylinder body 1 is lapped with the pan bottom 3, the pan bottom 3 shields the bottom end opening of the cylinder body 1; the inner wall of the cylinder body 1 is provided with a tungsten net inner support.

Wherein, the cylinder body 1 is a quartz cylinder, and the pot bottom 3 is a cone-shaped structure with a cone tip facing the inside of the cylinder body 1.

Wherein, the top of the core bar 2 is fixedly connected with a lifting ring 4.

Wherein, the top end of the cylinder body 1 is fixedly connected with an upper flange 5, and the upper flange 5 is connected with the core rod 2 in a sliding or rotating way.

Wherein, the inner side of the upper flange 5 is provided with a transverse plate 51, the transverse plate 51 is provided with a first through hole 52, the axial lead of the first through hole 52 is superposed with the axial lead of the cylinder 1, and the core rod 2 passes through the first through hole 52.

The horizontal plate 51 has a fan-shaped structure.

Wherein, the periphery of barrel 1 has cup jointed lower flange 6, and fixedly connected with at least a pair of branch 7 between upper flange 5 and the lower flange 6.

Wherein, the supporting rods 7 are uniformly distributed along the periphery of the cylinder 1. In this embodiment, two sets of supporting rods 7 are provided, and the included angle between the supporting rods 7 around the axial lead of the cylinder 1 is 90 degrees.

The pot bottom structure further comprises a hanging needle 8, a second through hole 31 is formed in the center of the pot bottom 3, the hanging needle 8 penetrates through the second through hole 31, the pot bottom 3 is in lap joint with the hanging needle 8, and the hanging needle 8 is fixedly connected with the bottom end of the core rod 2.

The core rod 2 penetrates through the baffle 9, and the baffle 9 can rotate around the core rod; when the shutter 9 rotates, the opening 53 of the upper flange 51 can be blocked.

The baffle 9 is a circular plate structure with a third through hole 91 at the center and a notch 92 at the edge, and the core rod 2 passes through the third through hole 91.

According to the monocrystalline silicon guide cylinder, the tungsten net inner support is arranged on the inner wall of the cylinder body, so that silicon materials collide with the tungsten net inner support when impacting the cylinder body in the cylinder body, the contact collision of the silicon materials and the inner wall of the cylinder body is reduced, and the influence of impurities falling from the inner wall of the cylinder body on the purity of the silicon materials is reduced; tungsten is high in hardness and not prone to scratching, and secondly, tungsten is heavy metal, even if trace tungsten falls off, the high-density inert metal of tungsten is deposited at the bottom of the pot, and the purity of the silicon material cannot be affected.

It should be understood that the mounting between the structures in the embodiments of the present invention may refer to welding, bolting, screwing, scarf joining, and bonding; the connection between the pipes may be referred to as communication; the connection between the appliances may refer to an electrical connection. The present invention is not limited to the precise arrangements described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present invention is limited only by the appended claims.

Claims

1. The monocrystalline silicon guide cylinder is characterized by comprising a cylinder body, a core rod and a pot bottom, wherein the core rod is positioned in the cylinder body, the bottom end of the core rod is connected with the pot bottom, and the top end of the core rod extends out of the cylinder body; when the bottom end of the cylinder body is lapped with the pan bottom, the pan bottom shields the bottom end opening of the cylinder body; the inner wall of the cylinder body is provided with a tungsten net inner support.

2. The single crystal silicon material guiding cylinder as claimed in claim 1, wherein a hanging ring is fixedly connected to the top of the core rod.

3. The single crystal silicon material guiding cylinder as claimed in claim 1, wherein an upper flange is fixedly connected to the top end of the cylinder body, and the upper flange is connected with the core rod in a sliding or rotating manner.

4. The monocrystalline silicon material guiding barrel as claimed in claim 3, wherein a transverse plate is arranged on the inner side of the upper flange, a first through hole is formed in the transverse plate, the axis of the first through hole is coincident with the axis of the barrel, and the core rod penetrates through the first through hole.

5. The monocrystalline silicon material guide cylinder as claimed in claim 4, wherein the transverse plate is a sector plate structure.

6. The single crystal silicon material guiding cylinder as claimed in claim 3, wherein a lower flange is sleeved on the outer periphery of the cylinder body, and at least one pair of supporting rods is fixedly connected between the upper flange and the lower flange.

7. The single crystal silicon material guiding cylinder as claimed in claim 6, wherein the supporting rods are uniformly distributed along the circumference of the cylinder body.

8. The monocrystalline silicon material guiding cylinder according to claim 1, further comprising a hanging needle, wherein a second through hole is formed in the center of the pot bottom, the hanging needle penetrates through the second through hole, the pot bottom is in lap joint with the hanging needle, and the hanging needle is fixedly connected with the bottom end of the core rod.

9. The monocrystalline silicon guide cylinder according to claim 1, further comprising a baffle plate, wherein the baffle plate is positioned at the top end of the upper flange, the core rod penetrates through the baffle plate, and the baffle plate can rotate around the core rod; when the baffle rotates, the opening of the upper flange can be shielded.

10. The single crystal silicon material guiding cylinder as claimed in claim 9, wherein the baffle is a circular plate structure with a third through hole in the center and a notch at the edge, and the core rod passes through the third through hole.