Electrolysis Cell Magnetic Field Equilibration via Correction Conductors
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Solution Overview
Problem
The magnetic field equilibration in series of rectangular electrolytic cells arranged transversally is disrupted by connecting conductors, leading to uneven magnetic fields, particularly affecting the end cells, which interferes with the uniformity and continuity of the magnetic field map.
Innovation Solution
The implementation of internal and external correction circuits with transverse segments and layers of conductors to simulate the presence of additional electrolytic cells beyond the end cell, compensating for the magnetic field disruptions caused by connecting conductors, thereby maintaining the additional vertical magnetic field within a controlled range and ensuring magnetic field equilibration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connecting conductors are used to link electrolytic cells in series, then electrical connectivity and current flow are achieved, but magnetic field uniformity is disrupted particularly at end cells
Solution Approach 1:
Correction conductors are introduced as intermediary elements between the connecting conductors and the electrolytic cells. These correction conductors generate compensating magnetic fields that counteract the disruptive magnetic fields produced by the connecting conductors, thereby mediating between the electrical connectivity requirement and the magnetic field uniformity requirement.
Solution Approach 2:
The magnetic field distribution is adjusted by changing the parameters of the correction conductors, including their position, dimensions, and current intensity. By modifying these parameters, the correction conductors generate magnetic fields with specific characteristics that compensate for the disruptions caused by the connecting conductors, restoring magnetic field uniformity in the end cells.
2Stability of the object's composition
If correction conductors are added to equilibrate magnetic fields, then magnetic field uniformity is improved, but device complexity increases
Solution Approach 1:
The correction system is divided into multiple independent correction conductors distributed along the line of electrolytic cells. Each correction conductor addresses the magnetic field disruption in its local region, particularly at end cells. This segmentation allows the complex problem of magnetic field equilibration to be solved through multiple simple, localized corrections rather than a single complex system.
Solution Approach 2:
The correction conductors serve multiple functions: they generate compensating magnetic fields to equilibrate the magnetic field distribution, maintain electrical connectivity in the correction circuit, and can be adjusted to adapt to different operating conditions. This multi-functionality reduces the need for additional specialized components, thereby limiting the increase in device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively limits the vertical magnetic field in the affected cells, allowing for precise adjustment and maintaining magnetic field uniformity across the electrolytic cells, thereby correcting the unfavorable magnetic field map produced by connecting conductors.
Implementation Method 1
the total magnetic field map produced by the connecting conductors and by the correction conductors
Implementation Method 2
production of aluminium by means of fused bath electrolysis, i.e., by means of electrolysis of alumina dissolved in a molten cryolite bath
Data Source
AI summary
The invention relates to a series (1) of electrolysis cells for the production of aluminum by fusion electrolysis, comprising at least two lines of cells, arranged transversely, an internal correction circuit (200) with at least one internal correction conductor (20, 20′) per line, adjacent to the neighboring line and a main connection circuit (400) between the final cells of the lines (101, 101′). In at least one line, the main connection circuit (400) comprises a layer of conductors, each conductor of which extends from the end of the final cell of the line to a given distance (D2, D2′) therefrom and the internal correction circuit (200) comprises a section of transverse conductors, arranged at a given distance (D1, D1′) from the final cell (101, 101′) running along the final cell for a given part L of the length thereof Lo. The invention permits a reduction in the mean supplementary vertical fields to very low values for electrolysis currents of a value greater than 300 kA.