Electrolytic aluminum anode waste separating and recovering method

An electrolytic aluminum anode, separation and recovery technology, applied in the direction of solid separation, magnetic separation, chemical instruments and methods, etc., can solve the problems of failure to recycle and reuse waste materials, achieve low cost, realize industrial automation flow production, and reduce labor demand small effect

Inactive Publication Date: 2012-03-28
巨锋
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the current technical bottleneck, the failure to recycle its waste is a huge blank in the field of recycling

Method used

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  • Electrolytic aluminum anode waste separating and recovering method
  • Electrolytic aluminum anode waste separating and recovering method
  • Electrolytic aluminum anode waste separating and recovering method

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Embodiment

[0031] Such as Figure 1~5 shown, where figure 1 It is a general picture, because the width of the picture is too large, it is divided into four parts, and each of the four parts is a picture ( Figure 2 to Figure 5 ), the four figures are combined into a complete schematic diagram of the route of the present invention. Electrolytic aluminum waste, feeding (forklift 1), dust collection storage bin 2, automatic conveyor 3, vibrating dust collector sieve 4, separated into carbon materials larger than 13 cm and materials smaller than or equal to 13 cm, of which: The charcoal material larger than 13 cm is sent to the material bin carbon C1 through the conveyor 5; the material bin C1 is collected for use; the material smaller than or equal to 13 cm is separated into magnetic material L1 by the magnetic separation conveyor 6A, and the rest is combined by the cylinder Wind screen 7, decomposed into 7-13 cm material (greater than 7 cm, less than or equal to 13 cm, excluding 7 cm) a...

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Abstract

An electrolytic aluminum anode waste separating and recovering method relates to the field of waste recovery and utilization. The method comprises the following steps: a, screening and classification are performed on waste materials; b, materials of which F is greater than F1 are divided into carbon objects and amorphous carbon objects through manual separation, and the separation of a color sorting machine or an optical separator; c, magnetic objects and nonmagnetic objects are separated during material conveying; d, carbon is extracted through respective electric separation equipment from the material of which the F is less than or equal to F3 and is less than or equal to F2 after screening and classifying; e, a material of which the F is less than the F3, and other amorphous carbon materials separated out from other links can be separated into carbon and amorphous carbon materials through crushing and flotation; f, the amorphous carbon materials in e is added with fluorine and chlorhydric acid for reaction so as to obtain cryolite; and g, purer cryolite is obtained after separation, water scrubbing, dewatering and drying. The invention has the benefits as follows: various material separation and purification from waste can be accomplished by using a series of processes such as optical separation, color selection, manual separation, magnetic separation, electric separation, floatation, chemical reaction and the like, so as to meet the requirements of industrial application. The separation cost during the entire process is low, the demand for labor force is low, and industrial automation continuous production is achieved.

Description

technical field [0001] The invention relates to the field of recycling waste materials, and further relates to a technology for separating and recycling electrolytic aluminum anode waste materials. Background technique [0002] After analyzing the main components of the anode waste produced in the electrolytic aluminum process: anode waste carbon material, cryolite, alumina, iron oxide and other trace impurities, the percentage of each material component is about anode waste carbon material ( Petroleum coke) about 75%, alumina about 6%, cryolite about 11%, iron and iron oxide 4% and other impurities about 4%. The above data contains different percentages of each substance in different manufacturers. [0003] Among the various materials contained in the waste anode block, the waste carbon block material is the main material, and aluminum oxide, cryolite, iron, iron oxide and other impurities prevent the carbon block from being directly used. Since aluminum is produced by th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00B09B5/00C25C3/12B07B1/00B03D1/00B03C1/02
Inventor 巨锋
Owner 巨锋
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