Hot anode scrap flue gas collection device for aluminum electrolysis cell with pre-baked anode

Abstract

The invention relates to a flue gas collection device, in particular to a hot anode scrap flue gas collection device for an aluminum electrolysis cell with a pre-baked anode. According to the hot anode scrap flue gas collection device for the aluminum electrolysis cell with the pre-baked anode, a box door is arranged on a box body, a clamping device is arranged at the bottom of the box body, and aflue gas exhaust port is formed in the side wall of the box body. The hot anode scrap flue gas collection device for the aluminum electrolysis cell with the pre-baked anode has the advantages that flue gas in the hot anode scrap cooling process can be well collected in the box body and taken away by negative pressure of a purification system, so that the workshop environment is not polluted; dueto the fact that the device is fixed on an anode supporting plate, existing trailer transportation is not affected, and the floor space of an electrolysis workshop is not additionally occupied; the device does not need to move in the using process, and only the box door needs to be manually opened, so that the operation is simple, and the labor intensity is low; and the device has no effect on theoriginal workshop arrangement, factory building structure and production equipment, not only can be applied to a newly-built electrolysis workshop, but also can be well applied to existing workshop configuration increasing, and has excellent universality.

Description

technical field [0001] The invention relates to a flue gas collection device, in particular to a flue gas collection device for hot anode residues of a prebaked anode aluminum electrolytic cell. Background technique [0002] When the prebaked anode aluminum electrolytic cell replaces the anode, a large amount of heat will be taken away from the cell. The temperature of the hot anode can reach above 600°C. It takes nearly 8 hours for natural cooling, during which a large amount of harmful fumes such as fluoride gas and dust are emitted. At present, most electrolytic aluminum factories in China do not use devices to collect the flue gas of hot anode residues, which belongs to unorganized emission in workshops and cannot meet the requirements of relevant national laws and regulations. [0003] Existing technologies are mainly divided into two methods. The first method is to build a hot anode cooling workshop, that is, to pile up the hot anodes in one place and collect the flue...

AI Technical Summary

Problems solved by technology

The disadvantage of the former is that the workshop door is often opened, the flue gas leaks out, the fan load is too large, the energy consumption is high, and the gas collection effect is not good

The disadvantage of the latter is that it consumes a lot of manpower, and the size of the box is limited by the distance between the columns of the workshop and occupies the space of the electrolysis workshop.

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