Material for sealing cathode steel bar of aluminum electrolytic tank

Abstract

The invention discloses a material for sealing a cathode steel bar of an aluminum electrolytic tank, which is prepared by mixing refractory particles, mixture of aluminum oxide powder and a refractory material, a binding agent and water according to a certain proportion, wherein the refractory particles account for 30-60% by weight, the mixture of the aluminum oxide powder and the refractory material accounts for 25-55% by weight, the binding agent accounts for 5-18% by weight and the water accounts for 7-15% by weight; the refractory particles adopt aluminum silicate particles or silicon oxide particles, and the binding agent adopts high aluminum cement or water glass; the required materials are poured into a stirring machine according to the proportion during the production, the stirring is firstly carried out for 3-5min for uniformly mixing and stirring the added materials, then an appropriate amount of the water is added for stirring for 5-10min, the stirring is stopped after confirming that the stirred materials have good flowability through visual observation, and then the materials are pouring into a container for preparation; and the material has simple production, good self-flowing property, convenient construction, good sealing performance and high temperature resistance.

Description

technical field [0001] The invention relates to the technical field of aluminum electrolysis process equipment, in particular to a material used for sealing a cathode steel rod of an aluminum electrolysis cell. Background technique [0002] The traditional electrolytic cell adopts the horizontal power generation method, and the horizontal current generated in the cell is relatively large, which affects the stability of the electrolytic cell. If a vertical aluminum electrolytic cell is used, the original sealing material around the cathode steel rod of the electrolytic cell cannot meet the requirements of a vertical aluminum electrolytic cell. It is urgent to design a cathode steel bar sealing material suitable for vertical aluminum electrolytic cells according to the structure and construction characteristics of vertical aluminum electrolytic cells. Contents of the invention [0003] In view of this, the purpose of the present invention is to provide a material for sealin...

AI Technical Summary

Problems solved by technology

[0002] The traditional electrolytic cell adopts the horizontal electricity output mode, and the horizontal current generated in the cell is relatively large, which affects the stability of the electrolytic cell

If a vertical aluminum electrolytic cell is used, the original sealing material around the cathode steel rod of the electrolytic cell can no longer meet the requirements of a vertical aluminum electrolytic cell