A controllable aluminum electrolytic cell anode covering sealing system and an aluminum electrolytic cell for its application

Abstract

The invention discloses a controllable aluminum cell anode covering and sealing system and an aluminum cell applied by the controllable aluminum cell anode covering and sealing system. The controllable aluminum cell anode covering and sealing system comprises a supporting frame and a plurality of anode cladding units. The supporting frame is arranged above an aluminum cell shell in a covering manner. The side faces of the supporting frame and the side faces of the aluminum cell shell are sealed and fixed through side baffles. The anode cladding units are each of a shell structure and are arranged on the top of the supporting frame in an embedded manner to cover the upper portions of anode carbon blocks, and the top of the supporting frame is sealed. By adopting the aluminum cell, the labor intensity and the production cost can be obviously reduced, the control level of the electrolytic process is improved, continuous, stable and efficient production is facilitated, the smoke collection efficiency is high, the environment is protected, and the aluminum cell has significance in improving the smoke collection efficiency of the aluminum cell, reducing the cost and protecting the environment, and in addition, as the smoke collection efficiency is improved, the smoke waste heat can also be utilized better.

Description

technical field [0001] The invention belongs to the structure of an aluminum electrolytic cell, and in particular relates to a controllable aluminum electrolytic cell anode covering and sealing system and an aluminum electrolytic cell applied thereto. Background technique [0002] At present, in the aluminum electrolysis operation, the upper part of the anode of the electrolytic cell is generally covered with a layer of covering material to reduce the heat loss of the electrolytic cell and the leakage of flue gas. This method mainly has the following problems: [0003] During the pole change operation, since the covering material is solidified into blocks, it needs to be mechanically broken by the air hammer of the crane to carry out the follow-up operation, which is time-consuming and labor-intensive; It is difficult to ensure the heat preservation effect of the electrolytic cell during operation; at the same time, the broken covering material will enter the electrolyte an...

AI Technical Summary

Problems solved by technology

The method used is the combination of the upper gas collecting hood and the trough cover. The biggest disadvantage of this smoke collection method is that the collection efficiency of the smoke is low, and a large amount of air is mixed in the smoke, and the smoke leaks from the trough cover. Into the environment, causing deterioration of workshop work and environmental pollution, bringing greater burden to the exhaust system of the electrolysis plant and increasing costs

In addition, due to the large amount of air mixed in the flue gas, it is difficult to preheat the flue gas

Limited by the anode covering material of traditional aluminum electrolytic cells, it is difficult to make key improvements in traditional flue gas collection

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