Furnace door type thermal insulation composite covering method and device for aluminum electrolytic cell

A technology of aluminum electrolytic cell and covering device, which is applied in the field of aluminum electrolysis, and can solve problems such as difficulty in standardization of electrolytic cell display characteristics, adjustment of thermal conditions, difficulty in monitoring and implementation, etc.

Active Publication Date: 2020-03-17
GUIYANG AL-MG DESIGN & RES INST
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Problems solved by technology

However, more manual participation makes it difficult to monitor and implement quantitative indicators in the actual implementation process, and it is difficult to standardize the display characteristics of electrolyzers in each section and area
[0005] In addition, with the operation of production and the continuous consumption

Method used

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  • Furnace door type thermal insulation composite covering method and device for aluminum electrolytic cell
  • Furnace door type thermal insulation composite covering method and device for aluminum electrolytic cell
  • Furnace door type thermal insulation composite covering method and device for aluminum electrolytic cell

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Embodiment Construction

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-Figure 3 As shown, the covering method of the present invention is to arrange a plurality of integral parts along the inner side of the whole circle of the tank shell of the aluminum electrolytic cell to the outer side of the anode group, above the liquid level of the electrolyte 6 and the side grate, and below the tank cover plate. Formed thermal insulation composite covering device, a single composite covering device can be opened and closed independently, forming a complete set of furnace door-type thermal insulation covering device that completely covers the entire circumference of the tank shell, replacing the traditional side covering with electrolyte alumina mixed powder. In this way, the thermal insulation, gas collection and anti-oxidation functions of the existing powdery covering materials are integrated. like...

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Abstract

The invention discloses a furnace-door-type thermal insulation composite covering method and device for an aluminum electrolysis cell. According to the method, two or more integrally-formed thermal insulation composite covering devices are arranged between the inner side of an entire circle of cell shell of the aluminum electrolysis cell and the outer side of an anode set and located above an electrolyte liquid level and a side furnace ledge and below a cell shield plate, each single thermal insulation composite covering device can be opened and closed independently, and accordingly the furnace-door-type thermal insulation covering complete device which is covered thoroughly along the entire circle of the cell shell can be formed. A traditional side covering mode using electrolyte aluminum oxide mixed powder for edge closing is replaced, and meanwhile the thermal insulation, gas collection and anti-oxidation functions of an existing powdery covering material are integrated. By means of the furnace-door-type thermal insulation composite covering method and device, a traditional scattered electrolyte aluminum oxide mixed powder shaping thermal insulation covering device can be replaced, and the thermal insulation and sealing properties are good. Meanwhile, the thermal insulation composite covering device has good shaping performance and abrasion resistance.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolysis, and in particular relates to a method and a complete set of devices for reducing the energy consumption of aluminum electrolysis production and replacing the existing electrolyte and alumina mixed powder for edge closing. Background technique [0002] Improving the technical level of aluminum electrolysis equipment during production and operation is the key to realizing energy saving, consumption reduction and emission reduction in aluminum electrolysis production. In the production and operation of the existing aluminum electrolytic cell, the composition of the anode covering material is a mixture of electrolyte particles and alumina particles of different particle sizes. The covering material mainly plays the role of heat preservation and preventing oxidation of the anode surface. Add manually. [0003] In today's electrolysis production process, pole changing has almost become a...

Claims

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Application Information

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IPC IPC(8): C25C3/12
CPCC25C3/12
Inventor 杨涛肖红俊黄俊陈才荣李猛
Owner GUIYANG AL-MG DESIGN & RES INST
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