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A multi-chamber energy-saving aluminum electrolytic cell capable of continuous operation

An aluminum electrolytic cell and electrolytic cell technology, applied in the field of aluminum electrolytic cells, can solve the problems of low energy saving and environmental protection, and achieve the effects of easy maintenance and replacement, lower cell voltage, and reduced space occupied

Active Publication Date: 2020-06-30
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a multi-chamber energy-saving aluminum electrolytic cell that can operate continuously in view of the problems of low energy saving and environmental protection in existing aluminum electrolytic cells

Method used

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  • A multi-chamber energy-saving aluminum electrolytic cell capable of continuous operation
  • A multi-chamber energy-saving aluminum electrolytic cell capable of continuous operation
  • A multi-chamber energy-saving aluminum electrolytic cell capable of continuous operation

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Embodiment

[0066] see figure 1 and figure 2 , the multi-chamber aluminum electrolytic cell in the illustration is a specific embodiment of the present invention, specifically including a cell body 1, an anode 2, a cathode 3, a bus system, an electrolytic cell superstructure 5 and an alumina blanking system 8. In this embodiment The capacity of the electrolytic cell is 400kA. There are 10 sets of cathodes 3 and 9 sets of anodes 2. The anodes 2 and cathodes 3 are arranged alternately inside the cell 1 along the horizontal direction of the bottom of the cell. The anodes 2 and cathodes 3 are plate electrodes of the same size. structure, adjacent anodes 2 and cathodes 3 are arranged vertically and form parallel electrolysis chambers, all anodes and cathodes have electrolysis areas of the same size, and 18 cells are formed in the cell body 1 of the entire electrolytic cell along the horizontal direction Such an electrolytic chamber. The bottom surface of the cell body 1 of the electrolytic ...

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Abstract

The invention discloses a multi-compartment energy-efficient aluminum electrolytic bath capable of operating continuously. Anodes and cathodes are arranged alternately in the electrolytic bath in thehorizontal direction; at least two electrolytic compartments are formed in each of the spaces between adjacent anodes and cathodes; a lining structure of the aluminum electrolytic bath is arranged onthe inner wall of a bath housing of the aluminum electrolytic bath and comprises bath chamber sides and a bath chamber bottom; the bottom surface of the bath chamber bottom is inclined to one side; analuminum gathering trough sunken towards the bottom surface of a bath chamber is formed in the lower side; each anode is a plate-shaped self-baked anode and is provided with an anode paste feeding system above the anode; each cathode is a plate-shaped pre-baked cathode; and aluminum oxide feeding systems connected to the tops of the electrolytic compartments correspondingly are arranged in the electrolytic bath. The aluminum electrolytic bath of the invention has a series of advantages such as energy efficiency, continuous production and investment reduction, and can guarantee the high energyefficiency and environmental friendliness of aluminum electrolysis.

Description

technical field [0001] The invention belongs to the aluminum electrolytic cell technology, in particular to a multi-chamber energy-saving aluminum electrolytic cell capable of continuous operation. Background technique [0002] The Hall-Héroult aluminum electrolysis process has always been the only method for industrial aluminum smelting, and its core reaction is carried out in the aluminum electrolytic cell. The current industrial aluminum electrolytic cells have experienced the development of small self-baking cells, small pre-baking cells, large pre-baking cells and extra-large pre-baking cells. Traditional self-baking cells have been completely eliminated in the industry due to environmental protection and other reasons. The current mainstream The electrolytic cells are all large or super-large prebaked anode aluminum electrolytic cells. Although the capacity of this type of electrolyzer has reached 600kA, there are many defects in this type of electrolyzer: [0003] 1...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25C3/08C25C3/12
Inventor 张红亮李家琦李劼李天爽张凯王佳成于心岩国辉孙珂娜
Owner CENT SOUTH UNIV
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