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Thermal field structure of polysilicon ingot furnace

A polycrystalline silicon ingot furnace and thermal field technology, applied in furnaces, crucible furnaces, furnace types, etc., can solve problems such as difficulty in meeting production requirements and insufficient structural design, and achieve the effects of reasonable design, shortening process time, and reducing energy consumption

Active Publication Date: 2009-02-25
浙江精工新能源装备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing polysilicon ingot furnace is difficult to meet the production requirements due to the lack of structural design.

Method used

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  • Thermal field structure of polysilicon ingot furnace
  • Thermal field structure of polysilicon ingot furnace

Examples

Experimental program
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Effect test

Embodiment Construction

[0011] The present invention mainly consists of a furnace body 1, a thermal insulation cage 2 with suspenders 12 placed in the furnace body 1, a thermal insulation roof 6 placed on the upper part of the thermal insulation cage 2, and a thermal insulation cage with a pillar 4 in the lower part. The bottom plate 5 is placed in the thermal insulation cage body 2 and fixed on the heater 7 on the thermal insulation top plate 6, fixed on the heat exchange table 3 with a crucible 13 on the top of the pillar 4, and placed between the heater 7 and the heat exchange table 3 The bottom of the pillar 4 is fixed on the bottom of the furnace body 1, and the heat insulation ring 9 is fixedly connected with the heat insulation top plate 6 through the connector 10.

[0012] The present invention will be further described below in conjunction with the production process of polysilicon:

[0013] Fill the crucible 13 with the polysilicon raw material 11, put it on the heat exchange table 3, opera...

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Abstract

The invention provides a heat field structure of a polysilicon-ingot casting furnace, pertains to the technical field of design and manufacturing for the heat field structure of the polysilicon-ingot casting furnace, which essentially comprises a furnace body (1), a heat-preserved and thermal-isolated cage (2) with a hanger rod (12) in the furnace body (1), a heat-preserved and thermal-isolated top plate (6) located at upper part of the heat-preserved and thermal-isolated cage (2), a heat-preserved and thermal-isolated bottom plate (5) whose lower part is provided with a column (4), a heater (7) located in the heat-preserved and thermal-isolated cage (2) and fixed on the heat-preserved and thermal-isolated top plate (6), a heat-exchanging table (3) fixed on the column (4) and having a crucible (13), and a heat-preserved and thermal-isolated ring stripe (9) located between the heater (7) and the heat-exchanging table (3). An enclosed heat field cavity is formed by the heat-preserved and thermal-isolated cage, heat-preserved and thermal-isolated top plate and the heat-preserved and thermal-isolated bottom plate; and the heat field cavity is divided into up and down part by the heat-preserved and thermal-isolated ring stripe. The invention not only enables the production of hi-quality silicon ingots, but also shortens the overall process time, and reduces the energy consumption during the crystallization.

Description

technical field [0001] The invention relates to a thermal field structure of a polysilicon ingot furnace, and belongs to the technical field of design and manufacture of the thermal field structure of a polysilicon ingot furnace. technical background [0002] Solar energy is an inexhaustible renewable energy for human beings. It is also a clean energy. Among the effective utilization of solar energy, solar photovoltaic utilization is the fastest growing and most dynamic research field in recent years, and solar cells have been developed and developed accordingly. The production of solar cells is mainly based on silicon materials. High-purity polysilicon raw materials are directional solidified ingots. After various parameters are measured, silicon blocks that meet the requirements are sliced ​​and packaged into final products. [0003] The polysilicon ingot furnace is a silicon remelting equipment used to produce a large number of qualified solar grade polysilicon ingots. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F27B14/14
Inventor 卫国军徐芳华孙海梁高杰
Owner 浙江精工新能源装备有限公司
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