CN218812223U

CN218812223U - Sealed feeding equipment and crystal growth device

Info

Publication number: CN218812223U
Application number: CN202320065621.2U
Authority: CN
Inventors: 向鹏; 李旭帆; 李永辉
Original assignee: Sichuan Jingke Energy Co ltd
Current assignee: Sichuan Jingke Energy Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-07
Anticipated expiration: 2033-01-09

Abstract

The application provides a sealed feeding device and a crystal growing device, wherein the sealed feeding device comprises a first material conveying component, a second material conveying component and a sealing device, a first opening part used for being communicated with a storage bin is arranged on one side of the first material conveying component, and a first outlet part used for outputting materials is arranged on the other side of the first material conveying component; a second opening part used for being connected with the first outlet part is arranged on one side of the second material conveying assembly, and a second outlet part for outputting materials is arranged on the other side of the second material conveying assembly; the sealing device is arranged at the joint of the first outlet part and the second opening part, and the first outlet part and the second opening part are arranged in the sealing device. This application avoids the material to leak the material to the external world in the transportation that transports to the second fortune material subassembly from first fortune material subassembly through setting up sealing device to reduce the waste of material, still reduced and revealed the probability that the material influences sealed feeding equipment normal operating.

Description

Sealed feeding equipment and crystal growth device

Technical Field

The utility model relates to a photovoltaic cell production technical field especially relates to a sealed feeding equipment and crystal growth device.

Background

OCZ charging equipment is a common equipment for adding silicon material for a single crystal furnace, the OCZ charging equipment comprises a first-level material tunnel and a second-level material tunnel, and silicon material is conveyed into the single crystal furnace through the transportation of the first-level material tunnel and the second-level material tunnel.

In the prior art, a gap exists at the joint of a first-level material tunnel and a second-level material tunnel of OCZ charging equipment, silicon materials are easy to leak to the outside of the equipment in the process of entering the second-level material tunnel from the first-level material tunnel, the materials are wasted, the working environment is polluted, and meanwhile, oxygen in the outside can enter the material tunnel from the gap, so that the oxygen content is too high in the process of pulling a follow-up single crystal furnace.

SUMMERY OF THE UTILITY MODEL

In view of this, the present application provides a sealed feeding device and a crystal growing apparatus, so as to solve the problems in the prior art that the material of the feeding device is easy to leak and the external oxygen is easy to mix into the single crystal furnace.

The application provides a sealed feeding device, which comprises a first material conveying assembly, a second material conveying assembly and a sealing device, wherein a first opening part used for being communicated with a storage bin is arranged on one side of the first material conveying assembly, and a first outlet part used for outputting materials is arranged on the other side of the first material conveying assembly; a second opening part used for being connected with the first outlet part is arranged on one side of the second material conveying component, and a second outlet part for outputting materials is arranged on the other side of the second material conveying component; the sealing device is arranged at the joint of the first outlet part and the second opening part, and the first outlet part and the second opening part are arranged in the sealing device.

In a possible design, the second material conveying assembly is movably arranged below the first material conveying assembly, the second material conveying assembly at least has an engaging position and a feeding position relative to the first material conveying assembly, and when the second material conveying assembly is located at the engaging position, the first outlet part is engaged with the second opening part; when the second material conveying assembly is located at the feeding position, the first outlet part is separated from the second opening part.

In a possible design, the sealing device includes an upper cover disposed on the first material conveying assembly and a sealing member disposed on the second material conveying assembly, the upper cover is disposed on the periphery of the first outlet portion, the sealing member is disposed on the periphery of the second opening portion, and the upper cover is connected with the sealing member in a sealing manner.

In a possible design, the sealing member is a telescopic bellows, and the second material conveying assembly further includes a telescopic mechanism connected to the bellows, and the telescopic mechanism is used for controlling the bellows to be telescopic so as to enable the end of the bellows to be abutted against or separated from the upper cover member.

In one possible design, the bellows is an elastic member.

In a possible design, the first material transporting assembly further includes a first sealing plate movably disposed at the first outlet, and the first sealing plate is used for plugging or opening the first outlet.

In a possible design, the first material transporting assembly further comprises a moving device connected with the first sealing plate, and the moving device is used for controlling the first sealing plate to close or open the first outlet.

In one possible design, the first material handling assembly and the second material handling assembly are vibrating material handling devices.

In a possible design, the second opening portion is of a bell-mouth structure, and the end with the larger diameter of the bell-mouth structure is arranged on one side, away from the second material conveying assembly, of the second opening portion.

The application also provides a crystal growth device, the crystal growth device comprises a single crystal furnace and any one of the above sealed feeding equipment, the sealed feeding equipment is communicated with the single crystal furnace, and silicon materials in the sealed feeding equipment enter the single crystal furnace through a feeding port on the side wall of the single crystal furnace.

The application provides a sealed charging equipment and crystal growth device has following advantage at least:

utilize sealing device to contain first export department and second opening in a space isolated with the external world to avoid the material to leak the material to the external world in the transportation that transports to the second fortune material subassembly from first fortune material subassembly, thereby reduce the waste of material, still reduced and revealed the material and influenced sealed feeding device normal operating's probability.

Additional features and advantages of embodiments of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of embodiments of the present application. The objectives and other advantages of the embodiments of the application will be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a sealed charging device provided in an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of a sealed charging apparatus provided in an embodiment of the present application;

fig. 3 is a schematic view of a second material handling assembly in a engaged position according to an embodiment of the present disclosure;

fig. 4 is a schematic view of the second material conveying assembly in the feeding position according to the embodiment of the present application.

Reference numerals:

100. sealing the feeding equipment;

110. a storage bin;

1. a first material conveying assembly;

11. a first opening portion;

12. a first outlet;

13. a first sealing plate;

2. a second material conveying assembly;

21. a second opening portion;

22. a second outlet portion;

3. a sealing device;

31. an upper cover member;

32. and a seal.

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

Detailed Description

For better understanding of the technical solutions of the present application, the following detailed descriptions of the embodiments of the present application are provided with reference to the accompanying drawings.

It should be understood that the embodiments described are only a few embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

In the description of the embodiments of the present application, the technical terms "first", "second", and the like are used only for distinguishing different objects, and are not to be construed as indicating or implying relative importance or to implicitly indicate the number, specific order, or primary-secondary relationship of the technical features indicated. In the description of the embodiments of the present application, "a plurality" means two or more unless specifically defined otherwise.

Reference in the specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the specification. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two), and similarly, "plural sets" refers to two or more (including two sets), "plural pieces" refers to two or more (including two pieces).

In the description of the embodiments of the present application, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the directions or positional relationships indicated in the drawings, and are only for convenience of description of the embodiments of the present application and for simplicity of description, but do not indicate or imply that the referred device or element must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

In the description of the embodiments of the present application, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; mechanical connection or electrical connection is also possible; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meanings of the above terms in the embodiments of the present application can be understood by those of ordinary skill in the art according to specific situations.

The following describes a specific embodiment of the sealed charging equipment according to the structure of the sealed charging equipment provided by the embodiment of the application.

The application provides a sealed feeding device 100, which comprises a first material conveying assembly 1, a second material conveying assembly 2 and a sealing device 3, wherein a first opening part 11 used for being communicated with a storage bin 110 is formed in one side of the first material conveying assembly 1, and a first outlet part 12 used for outputting materials is formed in the other side of the first material conveying assembly 1; a second opening part 21 used for being connected with the first outlet part 12 is arranged on one side of the second material conveying component 2, and a second outlet part 22 for outputting materials is arranged on the other side of the second material conveying component 2; the sealing device 3 is disposed at a joint of the first outlet portion 12 and the second opening portion 21, and the first outlet portion 12 and the second opening portion 21 are disposed inside the sealing device 3.

Referring to fig. 1 to 4, the first material transporting assembly 1 and the second material transporting assembly 2 may be a conventional vibrating material transporting device, a belt material transporting device, a roller material transporting device, or the like. The first opening 11 of the first material transporting assembly 1 is communicated with the bin 110, the material in the bin 110 enters the first material transporting assembly 1 along the first opening 11, and the first material transporting assembly 1 transports the material from the first opening 11 to the first outlet 12. The second opening 21 of the second material transporting assembly 2 is engaged with the first outlet 12, the material output from the first outlet 12 can enter the second material transporting assembly 2 through the second opening 21, the second material transporting assembly 2 transports the material from the second opening 21 to the second outlet 22, and the outlet of the second material transporting assembly 2 can be aligned with an OCZ connection furnace platform or other equipment.

It is noted that the material may be particulate silicon. Because the volume of the granular silicon is small and the hydrogen content is higher than that of the massive silicon, the granular silicon is heated to generate the hydrogen jump phenomenon easily in the rod pulling link at the rear end. For this reason, in this embodiment, a multi-stage material transporting device is designed to reduce the influence of the particulate silicon hydrogen jump on the material transporting.

The sealing device 3 is arranged at the joint of the first outlet part 12 and the second opening part 21, the sealing device 3 can be arranged in a split mode, one part of the sealing device 3 is arranged on the first material conveying assembly 1, the other part of the sealing device 3 is arranged on the second material conveying assembly 2, and therefore the sealing device 3 can be separated to clean materials remained in the sealing device 3 when needed. The sealing device 3 may be made of rubber, metal, plastic, or a combination thereof, as long as the sealing device 3 can cover the first outlet portion 12 and the second opening portion 21.

An example of a process for particulate silicon transport charging is given below:

the granular silicon in the storage bin 110 enters the first material conveying assembly 1 along the opening at the bottom of the storage bin 110 and the first opening part 11 at one side of the first material conveying assembly 1, the first material conveying assembly 1 conveys the granular silicon from the first opening part 11 to the first outlet part 12, the granular silicon output from the first outlet part 12 enters the second material conveying assembly 2 along the second opening part 21, the second material conveying assembly 2 conveys the granular silicon from the second opening part 21 to the second outlet part 22, and finally the granular silicon is output to the single crystal furnace along the second outlet part 22.

This application utilizes sealing device 3 to contain first export department 12 and second opening 21 in a space isolated with the external world to avoid the material to leak the material to the external world in the transportation that transports to second fortune material subassembly 2 from first fortune material subassembly 1, thereby reduce the waste of material, still reduced to reveal the material and influenced sealed feeding device 100 normal operating's probability. The sealing device 3 can also prevent oxygen from entering the single crystal furnace, and avoid the influence on the quality of the single crystal ingot caused by the overhigh oxygen content in the single crystal furnace in the crystal pulling process.

In one embodiment, the second material conveying assembly 2 is movably arranged below the first material conveying assembly 1, the second material conveying assembly 2 at least has an engaging position and a feeding position relative to the first material conveying assembly 1, and when the second material conveying assembly 2 is located at the engaging position, the first outlet part 12 is engaged with the second opening part 21; when the second material transporting assembly 2 is located at the feeding position, the first outlet portion 12 is disengaged from the second opening portion 21.

The second material transporting assembly 2 can be arranged on the track and drives the second material transporting assembly 2 to move by utilizing a driving device such as a servo motor screw rod structure, and thus, the second material transporting assembly 2 has a larger moving range.

Referring to fig. 3, when the second material transporting assembly 2 is located at the engaging position, the first outlet 12 is engaged with the second opening 21, and the material can be output from the first outlet 12 and enter the second material transporting assembly 2 along the second opening 21. The driving device can then drive the second material transporting assembly 2 to move to the feeding position, referring to fig. 4, when the second material transporting assembly 2 is located at the feeding position, the first outlet 12 is disengaged from the second opening 21, and the second outlet 22 is located away from the first material transporting assembly 1.

In one embodiment, the sealing device 3 comprises an upper cover 31 disposed on the first material conveying assembly 1 and a sealing member 32 disposed on the second material conveying assembly 2, the upper cover 31 is disposed on the periphery of the first outlet portion 12, the sealing member 32 is disposed on the periphery of the second opening portion 21, and the upper cover 31 is connected with the sealing member 32 in a sealing manner.

Referring to fig. 1, the upper lid 31 may be made of metal, plastic, etc., and the upper lid 31 forms a semi-enclosed structure around the first outlet 12. The sealing member 32 may be made of rubber or the like, and the sealing member 32 forms a half-enclosed structure at the periphery of the second opening portion 21. And the opening positions of the sealing element 32 and the upper cover element 31 are mutually abutted, and the sealing element and the upper cover element jointly form a relatively sealed structure.

In one embodiment, the sealing member 32 is a flexible bellows, and the second material handling assembly 2 further comprises a flexible mechanism connected to the bellows, wherein the flexible mechanism is used for controlling the flexible bellows to make the end of the bellows abut against or separate from the upper cover 31.

Referring to fig. 2, the sealing element 32 is a retractable bellows, the retractable mechanism (not shown) may be any one of a pneumatically controlled retractable cylinder, a motor-driven rack-and-pinion mechanism, and a motor-driven lead screw nut mechanism, and regarding the specific structure and connection manner of the retractable mechanism, those skilled in the art can easily connect according to the specific type of the mechanism, which is not described herein again. The telescopic mechanism is connected with the corrugated pipe, the corrugated pipe can be driven to do telescopic motion by the aid of the telescopic mechanism, when sealing is needed, the telescopic mechanism drives the corrugated pipe to extend to enable the end portion of the corrugated pipe to be abutted against the upper cover piece 31, and when sealing is not needed, the telescopic mechanism drives the corrugated pipe to shorten to enable the end portion of the corrugated pipe to be separated from the upper cover piece 31. The telescopic mechanism in the embodiment has a smaller structure and occupies less space.

In one embodiment, the bellows is a resilient member.

The elastic part can be made of materials such as rubber and high molecular polymer, can deform under the action of external force, and can restore to the original shape after the external force is removed, the corrugated pipe is arranged to be capable of being abutted against the upper cover part 31 to deform to a certain extent by the elastic part, so that a small gap between the corrugated pipe and the upper cover part 31 is blocked, and a better sealing effect is achieved.

In one embodiment, the first material transporting assembly 1 further comprises a first sealing plate 13, the first sealing plate 13 is movably disposed on the first outlet 12, and the first sealing plate 13 is used for plugging or unplugging the first outlet 12.

Referring to fig. 2, the first sealing plate 13 can seal the first outlet 12, so that the first material transporting assembly 1 can be kept relatively sealed during feeding. In this way, even if the second material conveying assembly 2 is located at the feeding position, the first outlet 12 is separated from the second opening 21, and the material conveying assembly 1 is actuated to convey the material without leaking the material from the first outlet 12. When the second material transporting assembly 2 is in the engaged position and the first outlet 12 is engaged with the second opening 21, the first sealing plate 13 can open the first outlet 12, so that the material enters the second opening 21 from the first outlet 12. The sealing performance of the first material conveying assembly 1 is improved by the arrangement of the first sealing plate 13, and the use efficiency of the sealing feeding device 100 is also improved.

In one embodiment, the first material transporting assembly 1 further comprises a moving device connected to the first sealing plate 13, and the moving device is used for controlling the first sealing plate 13 to close or open the first outlet 12.

The moving means (not shown) may be an electromagnet driving structure, and when the moving means senses that the second material transporting assembly 2 is in the engaged position, the moving means drives the first sealing plate 13 to open the first outlet 12, and when the moving means does not sense that the second material transporting assembly 2 is in the engaged position, the moving means drives the first sealing plate 13 to close the first outlet. In this way, the first sealing plate 13 opens the first outlet 12 only when the second opening 21 of the second material transporting assembly 2 is engaged with the first outlet 12, so as to prevent the leakage of the material output from the first outlet 12.

In one embodiment, the first material conveying assembly 1 and the second material conveying assembly 2 are vibrating material conveying devices.

A vibration material conveying device is equipment for continuously conveying materials by means of vibration. The vibration exciter mainly comprises a vibration exciter, a bearing groove, a main vibration spring, a rack and the like, and can be used for horizontally, slowly obliquely or vertically transporting various loose materials. The vibration conveying device is high in conveying efficiency and simple in structure, and the using efficiency of the sealed feeding equipment 100 can be improved.

In one embodiment, the second opening portion 21 is a bell mouth structure, and one end of the bell mouth structure with a larger diameter is disposed on one side of the second opening portion 21 away from the second material transporting assembly 2.

Referring to fig. 4, the second opening 21 is designed to be a bell-mouth structure, so that the probability of the material entering the second material transporting assembly 2 along the second opening 21 can be improved, and the material leakage probability is reduced.

The application also provides a crystal growth device, the crystal growth device comprises a single crystal furnace and the sealed feeding equipment 100, the sealed feeding equipment 100 is communicated with the single crystal furnace, and silicon materials in the sealed feeding equipment 100 enter the single crystal furnace through a feeding port on the side wall of the single crystal furnace.

The crystal growth device can reduce the leakage probability of materials and improve the use efficiency of the device by applying the sealed feeding device 100.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealed charging apparatus, comprising:

the device comprises a first material conveying assembly, a second material conveying assembly and a control system, wherein a first opening part used for being communicated with a storage bin is arranged on one side of the first material conveying assembly, and a first outlet part used for outputting materials is arranged on the other side of the first material conveying assembly;

a second opening part used for being connected with the first outlet part is arranged on one side of the second conveying component, and a second outlet part for outputting materials is arranged on the other side of the second conveying component;

the sealing device is arranged at the joint of the first outlet part and the second opening part, and the first outlet part and the second opening part are arranged in the sealing device.

2. The sealed charging apparatus of claim 1, wherein the second material handling assembly is movably disposed below the first material handling assembly, the second material handling assembly having at least an engaged position and a feed position relative to the first material handling assembly, the first outlet portion engaging the second opening portion when the second material handling assembly is in the engaged position; when the second material conveying assembly is located at the feeding position, the first outlet portion is separated from the second opening portion.

3. The sealed charging installation according to claim 1 or 2, characterized in that said sealing means comprise an upper lid element arranged on said first shipment assembly and a sealing element arranged on said second shipment assembly, said upper lid element being arranged on the periphery of said first outlet section and said sealing element being arranged on the periphery of said second opening section, said upper lid element being sealingly connected to said sealing element.

4. The sealed charging installation according to claim 3, wherein said sealing member is a bellows that is retractable, said second material handling assembly further comprising a retraction mechanism connected to said bellows for controlling the retraction of said bellows to bring the end of said bellows into or out of abutment with said upper lid member.

5. The sealed charging apparatus according to claim 4, characterized in that said bellows is an elastic member.

6. The sealed charging installation according to claim 1 or 2, wherein the first material handling assembly further comprises a first sealing plate movably arranged in the first outlet section, the first sealing plate being adapted to close or open the first outlet section.

7. The sealed charging apparatus of claim 6, wherein the first material handling assembly further comprises a moving device connected to the first sealing plate, the moving device being configured to control the first sealing plate to block or unblock the first outlet.

8. The sealed charging installation according to claim 1 or 2, characterised in that said first and second transporting assemblies are vibrating transporting devices.

9. The sealed charging installation according to claim 1 or 2, wherein the second opening portion is of a bell mouth configuration, the end of the bell mouth configuration having the larger diameter being disposed on the side of the second opening portion remote from the second material handling assembly.

10. A crystal growing apparatus, characterized in that the crystal growing apparatus comprises a single crystal furnace and a sealed charging device according to any one of claims 1 to 9, the sealed charging device is communicated with the single crystal furnace, and silicon material in the sealed charging device enters the single crystal furnace through a charging opening on the side wall of the single crystal furnace.