Cathode Shell Lining Device for Aluminum Electrolysis
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Solution Overview
Problem
Existing methods for lining the cathode shell of Aluminium electrolysis cells are labor-intensive, result in unsanitary working conditions due to material dusting, and produce inaccurate heat-insulating layers, leading to reduced service life and inefficiencies.
Innovation Solution
A method and device for simultaneously pouring and leveling lining materials over the cathode shell, using a supporting metal structure with a mechanical actuator and cassette system that allows for precise control and dust-free operation, enabling high-quality, uniform layer formation with reduced labor inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If manual methods are used for lining the cathode shell with heat-insulating bricks and dry barrier mixture, then the lining can be formed, but high labor inputs and long re-lining time are required
Solution Approach 1:
The patent replaces manual mechanical operations (shoveling, scraping, leveling) with a mechanical delivery system that automatically feeds and distributes the dry barrier mixture along the cathode shell using a conveyor belt mechanism, thereby reducing labor inputs and re-lining time
Solution Approach 2:
The system enables self-service operation where the mechanical delivery system automatically controls the distribution and compaction process without requiring continuous manual intervention, allowing the lining formation to proceed with minimal human labor
2Ease of manufacture
If manual spreading and leveling methods are used for the heat-insulating alumina layer, then the material can be distributed, but unsanitary working conditions due to material dusting occur
Solution Approach 1:
The patent replaces manual spreading operations that generate dust with a controlled mechanical delivery system that contains and distributes the dry barrier mixture in a dust-free manner, eliminating unsanitary working conditions
Solution Approach 2:
The system uses a conveyor belt mechanism that contains the dry barrier mixture during transport and distribution, preventing material dusting into the working environment while ensuring uniform spreading
3Ease of manufacture
If traditional manual leveling methods are used for the lining layers, then the surface can be leveled, but low accuracy of the heat-insulating layer is achieved which reduces service life
Solution Approach 1:
The patent replaces imprecise manual leveling with a mechanically controlled delivery system that ensures accurate and uniform distribution of the dry barrier mixture, achieving high manufacturing precision for the heat-insulating layer
Solution Approach 2:
The system incorporates controlled delivery mechanisms that regulate the flow and distribution of material to maintain consistent layer thickness and accuracy throughout the lining process
Data Source
AI summary
This disclosure relates to non-ferrous metallurgy and electrolytic production of Aluminium for lining a cathode assembly of an electrolytic cell. The present method includes laying materials while simultaneously distributing same over the surface of a base and levelling them at a height measured from the plane of the top edge of the shell of the cathode assembly of the electrolytic cell by gradually moving a device for installing unformed lining materials along a longitudinal axis of the cathode of the Aluminium electrolytic cell. Said device is configured in the form of a bridge equipped with a mechanical drive for movement. The bridge has guides on which a frame is mounted for vertical movement, said frame having cassettes provided with gates with a mechanical drive. The technical result is reduced labor costs, healthier working conditions for operatives, and better quality installation of the base of an electrolytic cell.