Aluminum electrolysis waste cathode treatment device and method
A technology for aluminum electrolysis waste cathodes and treatment devices, applied in chemical instruments and methods, charge manipulation, electric furnace heating, etc., can solve problems such as heavy pollution, unbalanced use temperature, and high energy consumption, so as to improve utilization efficiency and ensure stability Effect
Pending Publication Date: 2021-08-31
GUIZHOU BRANCH CHINA ALUMINUM IND +1
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Problems solved by technology
[0003] However, the commonly used high-temperature furnaces at home and abroad include Acheson furnaces, series furnaces and electric calciners. The energy is generated by resistance heating, and the operating temperature cannot be balanced. Poor treatment of spent cathodes in aluminum electrolysis
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[0032] In order to understand the above-mentioned purpose, features and advantages of the present invention more clearly, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the case of no conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0033] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. EXAMPLE LIMITATIONS.
[0034] Such as figure 1 As shown, the first aspect of an embodiment of the present invention provides a waste cathode treatment device for aluminum electrolysis, comprising: a furnace body 1, the to...
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The embodiment of the invention provides an aluminum electrolysis waste cathode treatment device and method. The device comprises a furnace body, a first electrode assembly, a second electrode assembly and a power supply assembly, wherein the top of the furnace body is provided with a feeding port, and the bottom of the furnace body is provided with a discharging port; at least part of the first electrode assembly is arranged in the furnace body, and the first electrode assembly is located above the furnace body; part of the second electrode assembly is arranged in the furnace body, and a material treatment space is formed between the second electrode assembly and the first electrode assembly; and the power supply assembly is connected to the first electrode assembly and the second electrode assembly. According to the aluminum electrolysis waste cathode treatment device, heating is conducted through resistors of waste cathode materials and electric arcs generated by mutual collision between the waste cathode materials, the stability of a temperature can be guaranteed, carbon substances obtain uniform energy, graphite products are uniform, and the furnace body can be always kept at a high temperature of 2500 DEG C or above, so that the utilization efficiency of aluminum electrolysis waste cathodes and the quality of the graphite products can be improved.
Description
technical field [0001] The invention relates to the technical field of resource utilization of aluminum electrolysis waste, in particular to a treatment device and method for aluminum electrolysis waste cathode. Background technique [0002] The aluminum electrolysis process will produce waste cathodes, and the main phases in the waste cathodes are carbonaceous materials. The boiling point of the single phase or mixed phase of other phases is below 2500°C. If the heat treatment temperature of the waste cathodes reaches 2500°C or more, Then impurities such as fluoride and aluminum nitride in the spent cathode can be sublimated into a gaseous state, which can effectively dissociate the impurities from the carbonaceous material, and realize high purification and graphitization of the carbonaceous material. [0003] However, the commonly used high-temperature furnaces at home and abroad include Acheson furnaces, series furnaces and electric calciners. The energy is generated by ...
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Patent Timeline
Login to View More IPC IPC(8): F27D3/00F27D11/10B09B3/00C25C3/08
CPCF27D3/00F27D11/10C25C3/08F27D2003/0075F27M2001/012F27M2001/10B09B3/80B09B3/40
Inventor 陈开斌王珣刘建军黎应和刘彤杜婷婷罗钟生孙丽贞尹大伟傅栿
Owner GUIZHOU BRANCH CHINA ALUMINUM IND