Silicon material purification device and method
A technology of silicon material and pulling device, applied in chemical instruments and methods, silicon compounds, inorganic chemistry, etc., can solve the problems of waste of resources, restricting the development of photovoltaic industry, etc.
Pending Publication Date: 2022-03-04
万向新元科技股份有限公司
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Problems solved by technology
At present, the scientific and comprehensive recycling of these silicon materials has not been realized, which is a great waste of resources and a bottleneck restricting the development of the photovoltaic industry.
Method used
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[0034] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0035] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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The invention provides a silicon material purification device and method. The purification device comprises a refining furnace, a crucible, a vacuum unit, a cooling system and a heating system, the crucible is arranged inside the refining furnace, the vacuum unit is communicated with the refining furnace, the heating system is arranged on the crucible, and the cooling system is arranged below the crucible. The purification method comprises the following steps: putting a to-be-treated silicon material into the blanking bin from the charging opening, and closing the bin opening; starting a vacuum unit to vacuumize the refining furnace; the silicon material is guided and conveyed to a bearing seat in the crucible from a discharging pipeline of the discharging bin; starting an electromagnetic induction coil and an ignition ring of the heating system, and heating the silicon material to a molten state; closing the electromagnetic induction coil, and lifting the ignition ring to the outside of the crucible by using a lifting device; the water cooling device is started, the molten silicon material is moved downwards through the pull-down device, and the molten silicon material is cooled into a silicon ingot; and stopping vacuumizing of the vacuum unit, inflating the refining furnace, opening the furnace door, and taking out the silicon ingot. The silicon material can be effectively saved.
Description
technical field [0001] The invention belongs to the technical field of silicon material purification, and in particular relates to a silicon material purification device and method. Background technique [0002] Since the beginning of the 21st century, with the increasing depletion of mineral energy and the serious pollution of the environment during its application, the photovoltaic industry has developed rapidly worldwide. my country clearly stated at the United Nations General Assembly that carbon dioxide emissions should peak before 2030 and strive to achieve carbon neutrality before 2060. If China achieves carbon neutrality by 2060, the installed capacity of nuclear energy will be more than five times that of the present, the installed capacity of wind energy will be more than 12 times that of the present, and the installed capacity of solar energy will be more than 70 times that of the present. The rapid expansion of photovoltaic production capacity has led to a surge...
Claims
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Login to View More IPC IPC(8): C01B33/037
CPCC01B33/037
Inventor 朱业胜姜承法吴旭宏董志远
Owner 万向新元科技股份有限公司