Method for processing coke by electrolytic aluminium waste and special device

Abstract

The invention discloses a method for processing coke by electrolytic aluminium waste and a special device. The method is characterized by comprising the following steps of: obtaining a carbon material from electrolytic aluminium waste via magnetic separation and flotation processes; drying the carbon material, and preheating to 100-120 DEG C; adding asphalt and tar, mixing via kneading equipment, and then moulding in hydraulic moulding equipment by pressing; curing the moulded raw materials in an electro-thermal dry distillation device; and drying and preheating the carbon material by the dry-distilled coke product via a waste heat utilization device. The invention discloses a new process and a new technology for resource utilization for the high-fluorine-content carbon-containing solid waste of electrolytic aluminium, which is used for deeply processing the carbon material obtained by the electrolytic aluminium waste, so as to further increase the additional value of the electrolytic aluminium waste. Compared with the prior art, the new process and the new technology have the advantages of being wide in application range, high in treatment and disposal amount, advanced in technology, low in treatment cost, and good for the implementation of industrialization. Simultaneously, the project is specific in the aimed target market, and obvious in market competition advantage.

Description

technical field [0001] The invention relates to a method and a special device for processing coke from electrolytic aluminum waste, and belongs to the technical field of recycling and utilization of electrolytic aluminum waste. Background technique [0002] In recent years, because the average industrial electricity price in the central and eastern parts of my country has been rising year by year, while the western part is rich in water and coal resources, the industrial electricity price is relatively stable. Therefore, in the "Twelfth Five-Year Plan", China's electrolytic aluminum industry will further transfer to the western region. It is estimated that by the end of the "Twelfth Five-Year Plan", China's electrolytic aluminum output will reach 30 million tons, of which the electrolytic aluminum production capacity of Xinjiang, Qinghai, Ningxia, Inner Mongolia, Guizhou and Yunnan will account for more than 60% of the country's total output, that is, reach It is conservativel...

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Problems solved by technology

[0002] In recent years, because the average industrial electricity price in the central and eastern parts of my country has been rising year by year, while the western part is rich in water and coal resources, the industrial electricity price is relatively stable. Therefore, in the "Twelfth Five-Year Plan", China's electrolytic aluminum industry will further transfer to the western region. It is estimated that by the end of the "Twelfth Five-Year Plan", China's electrolytic aluminum output will reach 30 million tons, of which the electrolytic aluminum production capacity of Xinjiang, Qinghai, Ningxia, Inner Mongolia, Guizhou and Yunnan will account for more than 60% of the country's total output, that is, reach It is conservatively estimated that the output of electrolytic aluminum waste slag is 1.25 million tons per year. The existing waste slag treatment technology will not only cause serious secondary pollution, but also a huge waste of resources

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