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Energy-saving aluminum electrolysis bath

An aluminum electrolytic cell and energy-saving technology, applied in the field of aluminum electrolysis, can solve the problems of restricting the development of the aluminum industry and the improvement of economic benefits, the production capacity of electrolytic aluminum cannot be fully utilized, and the energy consumption of aluminum electrolysis is high, so as to achieve the distribution of cathode current Uniformity, reduce investment cost, and alleviate the effect of magnetic field

Inactive Publication Date: 2008-09-10
云南涌鑫金属加工有限公司
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Problems solved by technology

However, the existing aluminum electrolysis production consumes a lot of energy, and the comprehensive AC power consumption of primary aluminum is as high as 14500Kwh / t·Al
The development of the economy has led to global energy shortages and power shortages. The shortage of power has caused the production capacity of all electrolytic aluminum production enterprises to not be fully utilized, which has restricted the development of the aluminum industry and the improvement of economic benefits.

Method used

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Embodiment Construction

[0013] As shown in Figure 3 and Figure 4, the energy-saving aluminum electrolytic cell of the present invention is to design trapezoidal groove on the upper surface of the cathode carbon block, that is, a trapezoidal groove structure perpendicular to the longitudinal direction of the carbon block, and the cross-sectional size of the trapezoidal groove is: The surface is 200-250mm, the lower surface is 50-100mm, and the height is 100-200mm, which is a better size range. The cathode carbon block is made of graphitized or semi-graphitized carbonaceous material.

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Abstract

The invention relates to an energy-saving aluminum electrolytic cell, which comprises a Hall-Heroult electrolytic cell and is characterized in that: the surface of a cathode carbon block of the electrolytic cell is provided with a dovetail groove, namely the dovetail groove which is perpendicular to the vertical direction of the carbon block. The energy-saving aluminum cell can reduce groove voltage, and the current efficiency is stable and even improved; moreover, the investment cost of the aluminum cell can be reduced. The energy-saving electrolytic cell belongs to an origination at home and abroad, obtains obvious technical and economic targets and brings significant economic benefit for enterprises. The application of the energy-saving electrolytic cell can have an important impact on the aluminum industry at home and abroad and contribute to energy conservation in the world aluminum industry. The energy-saving electrolytic cell is suitable for all aluminum cells.

Description

technical field [0001] The invention relates to the technical field of aluminum electrolysis, in particular to an energy-saving electrolytic cell for producing electrolytic aluminum by Hall-Erou method. Background technique [0002] At present, the only method for industrial production of aluminum is cryolite-alumina molten salt electrolysis. Aluminum electrolytic cell is the main equipment for aluminum smelting. In recent years, there has been great progress in the structure and capacity of aluminum electrolytic cell. Type electrolyzer, so that the production capacity of a single tank is expanded, and the current efficiency is gradually improved. However, the existing aluminum electrolysis production consumes a lot of energy, and the comprehensive AC power consumption of primary aluminum is as high as 14500Kwh / t·Al. The development of the economy has led to global energy shortages and power shortages. The shortage of power has caused the production capacity of all electro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C3/08
Inventor 杨叶伟田永丁吉林董仕毅晏金熊自勇高长元赵瑞敏王建平赵仕堂信伟松
Owner 云南涌鑫金属加工有限公司
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