Solid waste treatment system and method for electrolytic aluminum waste subjected to mixed burning in circulating fluidized bed boiler
A technology of a circulating fluidized bed and a treatment system is applied in the field of a solid waste treatment system for mixed-fired electrolytic aluminum waste in a circulating fluidized bed boiler, which can solve the problems of resource waste, environmental safety hazards, etc., and achieve fuel cost saving, pollution reduction, and fuel consumption. A wide range of effects
Pending Publication Date: 2020-06-19
HUANENG CLEAN ENERGY RES INST
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[0004] Studies have shown that electrolytic aluminum waste (cathode, anode) has a certain calorific value, but currently the electrolytic aluminum waste is mainly disposed of in a safe landfill, which not only brings hidden dangers to environmental safety, but also causes a great waste of resources
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[0034] The present invention will be described in further detail below in conjunction with accompanying drawing and specific embodiment, and its content is explanation of the present invention rather than limitation:
[0035] figure 1 It is a circulating fluidized bed boiler mixed firing electrolytic aluminum waste solid waste treatment system of the present invention, comprising a multi-stage crushing system 1 for electrolytic aluminum waste, a limestone powder feeding device 2, a pneumatic conveying system 3, a blending system 4, a conveying system 5 and Circulating fluidized bed boiler 6; electrolytic aluminum waste multi-stage crushing system 1 and limestone powder feeding device 2 are respectively connected to a blending system 4 through a pneumatic conveying system 3, and the blending system 4 is connected to a circulating fluidized bed boiler 6 through a transmission system 5 The coal feeding belt is connected, and finally enters the furnace feed port. The furnace feed ...
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The invention discloses a solid waste treatment system and method for electrolytic aluminum waste subjected to mixed burning in a circulating fluidized bed boiler, and belongs to the technical field of industrial solid waste and metallurgical waste utilization. The method comprises the steps that crushed electrolytic aluminum waste and limestone powder are fed to a mixing system through a pneumatic conveying system for mixing, and then fed into a circulating fluidized bed boiler through a transmission system for mixed burning. Simple operation, high degree of automation, easy centralized control, low raw material processing requirements, large treatment capacity and long transmission distance are achieved, the electrolytic aluminum waste is harmlessly treated by mixed burning, and the pollution of toxic solid waste to land and water resources is reduced; and meanwhile, the heat in the electrolytic aluminum waste is recovered, and huge social and economic benefits are realized.
Description
technical field [0001] The invention belongs to the technical field of utilization of industrial solid waste and metallurgical waste, and in particular relates to a solid waste treatment system and method for mixed firing electrolytic aluminum waste in a circulating fluidized bed boiler. Background technique [0002] Electrolytic aluminum waste is a general term for the waste generated during the production of electrolytic aluminum, including: waste cathode carbon blocks and waste anode materials. Global aluminum production has always maintained a year-by-year growth trend. Aluminum production has increased from 19.65 million tons in 1994 to 58.89 million in 2016 tons, with the continuous advancement of the globalization process, the technology and equipment level of the aluminum production industry in various countries in the world has been continuously improved, and a large amount of electrolytic aluminum waste has also been produced. During the overhaul of the tank, a lar...
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IPC IPC(8): F23G7/00F23G5/30F23G5/033F23G5/44F23G5/50F23J15/02
CPCF23G5/033F23G5/30F23G5/44F23G5/444F23G5/50F23G7/00F23G2201/80F23J15/02
Inventor 史磊刘海峰张世鑫高洪培李楠惠小龙
Owner HUANENG CLEAN ENERGY RES INST