Vertical parallel arrangement of anode and cathode integrated electrolytic device

Abstract

The application relates to the technical field of electrolytic devices, and discloses an electrolytic device which comprises an electrolytic tank, the cathode and the anode in the electrolytic tank are arranged in a vertical standing mode, are arranged in parallel and side by side with spacing and are installed perpendicularly to the tank bottom; the cathode and the anode both form double-side effective electrolysis reaction surfaces, the bottom of the anode is also provided with an electrolysis reaction surface, and the left side, the right side and the bottom of the tank body can all be provided with cathodes. The electrode adopts a ceramic-based electrolysis electrode, the ceramic base is coated with an electric conductor, the electric conductor is provided with a conductive head which extends out of the ceramic base, the ceramic base completely protects and isolates the electric conductor, so that the electric conductor does not contact the electrolyte and only participates in the electrochemical reaction through the conductive head; the cathode and the anode are independently and conductively led out and form modular, pluggable and individually replaceable electrode units, the whole structure can be used in multiple groups in parallel and in a large scale, the structure is arranged in a vertical parallel mode, the internal space of the electrolytic tank is fully utilized, the whole effective electrolysis is realized, the ion migration path is shorter, and the electrolysis efficiency is effectively improved, the energy consumption and the carbon consumption are reduced.

Description

Technical Field

[0001] This invention relates to non-ferrous metal molten salt electrolysis technology, and is particularly applicable to the application of inert electrodes in the electrolytic aluminum production of cryolite-alumina system. Background Technology

[0002] Traditional aluminum electrolysis processes have used an upper anode and lower cathode alignment structure for over a century. The cathode arrangement is fixed and has drawbacks such as small effective reaction area, uneven electric field distribution, low ion utilization, high energy consumption, large carbon anode loss, high material cost, frequent replacement, and difficult maintenance. There has been no fundamental structural breakthrough in the industry. Summary of the Invention

[0003] This invention discloses an integrated electrolysis device with vertically parallel arranged anode and cathode, which fundamentally changes the traditional electrolysis cell structure and layout, achieving dual optimization of structure and efficiency.

[0004] Inside the electrolytic cell, both the anode and cathode are arranged vertically, with the anode and cathode arranged parallel to each other and spaced apart, and installed perpendicular to the bottom of the cell.

[0005] Both the anode and cathode form effective electrolytic reaction surfaces on both sides, and the bottom of the anode also has an effective electrolytic reaction surface; cathodes can be installed on the left, right, and bottom sides of the tank without having to remove the original bottom cathode structure.

[0006] The electrode is a ceramic-based electrolytic electrode, which includes a ceramic matrix, a conductor encapsulated within the ceramic matrix, a conductive head on the conductor, and a conductive end extending out of the ceramic matrix. The ceramic matrix completely encapsulates and isolates the conductor, preventing the conductor from directly contacting the electrolytic medium and allowing it to participate in the electrochemical reaction only through the conductive head exposed within the ceramic matrix.

[0007] The electrode conductor is made of a material that is resistant to high temperature and corrosion and has stable conductivity. There are no restrictions on the specific matrix composition or the type of material; only the structural form is protected.

[0008] The anode and cathode are independently led out to form a modular, pluggable, and individually replaceable electrode unit.

[0009] The entire structure can be used in multiple parallel configurations on a large scale.

Claims

1. An electrolysis apparatus, comprising an electrolytic cell, characterized in that: The anode and cathode inside the electrolytic cell are arranged vertically, parallel to each other and spaced apart, installed perpendicular to the bottom of the cell. Both the anode and cathode form effective electrolytic reaction surfaces on both sides, and the bottom of the anode also has an electrolytic reaction surface. Cathodes can be installed on the left, right, and bottom sides of the cell without eliminating the original bottom cathode structure. The electrodes are ceramic-based electrolytic electrodes, consisting of a ceramic matrix encapsulating a conductor. The conductor has a conductive head extending outside the ceramic matrix, and the ceramic matrix completely protects and isolates the conductor, preventing it from contacting the electrolyte. The conductor participates in the electrochemical reaction only through the conductive head exposed within the ceramic matrix. The electrode conductor is made of a high-temperature resistant, corrosion-resistant, and electrically stable material, with no restrictions on specific composition or material type, only on the protective structural form. The anode and cathode are independently led out, forming modular, pluggable, and individually replaceable electrode units. The entire structure can be used in multiple parallel configurations for large-scale deployment.

2. The electrolysis apparatus according to claim 1, characterized in that: The ceramic substrate is made of insulating and corrosion-resistant ceramic material, which fully encloses and seals the conductor, with only the conductive head exposed.

3. The electrolysis apparatus according to claim 1, characterized in that: The electrode unit has a modular and detachable structure, and a single electrode can be replaced independently without the entire machine being shut down.