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Single crystal furnace charging system

A feeding system and single crystal furnace technology, applied in the direction of single crystal growth, single crystal growth, polycrystalline material growth, etc., can solve problems such as affecting the smooth progress of the crystal pulling process, heat dissipation of the single crystal furnace, and reducing the crystal pulling efficiency.

Pending Publication Date: 2021-09-03
LONGI GREEN ENERGY TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] However, since the side of the single crystal furnace is equipped with a feeding port, it is easy to cause heat loss in the single crystal furnace, which affects the smooth progress of the crystal pulling process and reduces the efficiency of crystal pulling

Method used

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Embodiment Construction

[0040] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0041] refer to figure 1 , shows a schematic structural view of a single crystal furnace charging system of the present invention; refer to figure 2 , shows a schematic cross-sectional view of a charging system for a single crystal furnace of the present invention. Such as figure 1 and figure 2 As shown, the single crystal furnace feeding system provided by the present invention is used for feeding raw materials into the single crystal furnace. Specifically, the single crystal furnace feeding system may include: a single crystal furnace 10 and a feeding device 20, wherein the single crystal furnace 10 is used to pull a single crystal, and the feeding device 20 is used to provide the single crystal furnace 10 with raw material...

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Abstract

The embodiment of the invention provides a single crystal furnace charging system. The single crystal furnace charging system comprises a single crystal furnace and a charging device, and the single crystal furnace comprises a furnace body, a thermal insulation layer, a crucible and a stopper. A first charging hole is formed in the furnace body, and a second charging hole is formed in a position, opposite to the first charging hole, of the insulating layer; and the charging device comprises a material conveying piece, and the material conveying piece is sequentially and movably arranged in the first charging opening and the second charging opening in a penetrating mode. Moreover, the second charging hole is movably provided with a stop piece for shielding the second charging hole, so that after the charging device finishes charging a crucible, the conveying piece can be drawn out from the second charging hole, and the second charging hole is shielded by the stop piece to prevent the heat in the insulating layer from being lost so as to meet the heat requirement in the crystal pulling process of the single crystal furnace, the crystal pulling process is ensured to be carried out smoothly, and the crystal pulling efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of single crystal furnaces, in particular to a single crystal furnace charging system. Background technique [0002] With the rapid promotion of new energy technologies, more and more people pay more and more attention to the research and development of photovoltaic industry. Czochralski growth of single crystal silicon is currently the most widely used technology for the production of single crystal silicon. In the process of producing single crystal silicon, it is necessary to periodically add silicon material into the single crystal furnace to meet the needs of the crystal pulling process. [0003] In the prior art, the single crystal furnace is mainly fed by setting a feeding device on the side of the single crystal furnace. Specifically, a feeding port is provided on the side of the single crystal furnace, and a feeding device is provided with a feeding part, and the feeding part is installed in the f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B15/02C30B29/06
CPCC30B15/02C30B29/06
Inventor 张永辉李侨赵阳赵鹏刘文斌任杰
Owner LONGI GREEN ENERGY TECH CO LTD
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