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Upper gas guide and gas collecting type anode structure for aluminum electrolysis

A technology of anode structure and aluminum electrolysis, which is applied in the field of upper gas-guiding and gas-collecting anode structure for aluminum electrolysis, which can solve the problems of clogging vent holes and achieve the effects of preventing crusting, improving exhaust effect, and increasing temperature

Inactive Publication Date: 2012-12-19
CENT SOUTH UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Tian Yingfu [10] et al. determined the position and size of the perforation, and achieved good results in industrial tests, but in the test, the electrolyte in the perforation crusted and blocked the vent hole, so it is necessary to study a better vent structure

Method used

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  • Upper gas guide and gas collecting type anode structure for aluminum electrolysis
  • Upper gas guide and gas collecting type anode structure for aluminum electrolysis
  • Upper gas guide and gas collecting type anode structure for aluminum electrolysis

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with accompanying drawing.

[0031] see figure 1 , figure 2 with image 3 , the upper part of the anode carbon block 5 is provided with two air-guiding grooves 3 and the air-guiding groove cover plate 4 covering the air-guiding grooves 3, the length, width and depth of the air-guiding grooves 3 are respectively 1065-1070 mm, 40-45mm and 30-40mm, five anode perforations 6 communicate with the air guide groove 3, the diameter of the anode perforation 6 is 20-30mm, the exhaust pipe 2 is placed on the air guide groove cover plate 4 and connected with the air guide groove 3 connected, the upper part of the anode carbon block 5 is provided with a crust insulation layer 1 covering the air guide groove cover plate 4 and the air guide groove 3.

[0032] see figure 1 , figure 2 with image 3 , during the process of electrolytic cell anode roasting and molding, two air-guiding grooves 3 are made on the to...

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PUM

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Abstract

The invention discloses an upper gas guide and gas collecting type anode structure for aluminum electrolysis. The upper gas guide and gas collecting type anode structure comprises an anode carbon block (5) and a plurality of anode through holes (6) arranged on the anode carbon block (5), wherein the upper part of the anode carbon block (5) is provided with at least one gas guide groove (3) and a gas guide groove cover plate (4) covering the gas guide groove (3), the anode through holes (6) are communicated with the gas guide groove (3), and the gas guide groove (3) is connected with an exhaust pipe (2). The invention belongs to the upper gas guide and gas collecting type anode structure for aluminum electrolysis, which has the advantages that the gas escaping is favorably realized, and the exhaust effect is improved.

Description

technical field [0001] The invention relates to an anode structure, in particular to an upper gas-conducting and gas-collecting anode structure for aluminum electrolysis, which is used to discharge gas generated under the anode in time. Background technique [0002] There is gas generated under the anode bottom palm of the aluminum electrolytic cell. These gases gather under the anode bottom palm to form a certain thickness of bubble layer, which will increase the resistivity of the electrolyte layer in the polar distance area and the anode overvoltage. If the bubbles can be discharged from the anode bottom palm in time , the thinning of the bubble layer can reduce the resistivity of the electrolyte layer and the anode overvoltage in the pole distance area, and then realize the energy saving and consumption reduction of the aluminum electrolytic cell. The research on the new anode exhaust structure at home and abroad mainly focuses on the research on anode slotting. [1-2] R...

Claims

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Application Information

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IPC IPC(8): C25C3/12C25C3/22
Inventor 李贺松田应甫韦隆和张思源
Owner CENT SOUTH UNIV
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