Detection device and method for simulating furnace wall growth process of aluminum electrolytic bath

Abstract

The invention discloses a detection device and method for simulating furnace wall growth process of an aluminum electrolytic bath. The detection device comprises a furnace wall growth device, a cooling air control system and a temperature monitoring system, wherein a side carbon block model is a solid cylinder, the solid cylinder is made of the same material of actual side carbon block of the aluminum electrolytic bath and is provided with a central counter hole, the thickness of a side wall of the aluminum electrolytic bath is K times of the actual thickness of the side carbon block of the electrolytic bath, a side artificial leg-stretching model is a solid rotation body, the solid rotation body is made of the same material of an actual artificial stretching leg of the aluminum electrolytic bath and is provided with a central through hole, the longitudinal cross section shape of the side wall is similar to the cross section shape of the actual artificial stretching leg of the aluminumelectrolytic bath, and the similar ratio is K. A similar principle and a model experiment method are used, the furnace wall growth similar simulation of the aluminum electrolytic bath is achieved, and the problem of direct detection on a furnace wall growth state of the aluminum electrolytic bath is solved.

Description

technical field [0001] The invention belongs to the technical field of aluminum electrolytic cells, in particular to a detection device and method for the side growth process of aluminum electrolytic cells. Background technique [0002] my country's aluminum electrolysis industry started in the 1950s and has developed rapidly. So far, China's large-scale prebaked anode electrolytic cell design level has reached the world's advanced level, and the output of primary aluminum has ranked first in the world for more than ten consecutive years since 2001. The world's first 600kA extra-large aluminum electrolysis series independently designed and built by my country has been put into operation. The side part of the lining of the electrolytic cell is composed of: steel wall, insulation bricks; high-strength castables are poured between the insulation layer and the bottom carbon block; a layer of refractory bricks and side carbon blocks (or silicon nitride bonded knotted silicon car...

AI Technical Summary

Problems solved by technology

However, with the enlargement of the aluminum electrolytic cell, the operation of the aluminum electrolytic process becomes critical, which greatly weakens the self-regulation ability of the cell side, and puts forward higher requirements for the design optimization of the electrolytic cell.

[0003] Although computer simulation is widely used at present, the design and optimization of new structures of large-scale electrolyzers can be predicted and evaluated by means of computer simulation, but computer simulation still needs experimental verification, and for high-temperature and high-corrosion electrolysis operating environments, the tank side Growth and hearth shape difficult to detect directly

The patent application "on-line detection system for side shape of aluminum electrolytic cell" (Application No.: 201110439642.8) discloses an online detection system for side side of an aluminum electrolytic cell, which indirectly detects side conditions from the perspective of thermal conditions of the electrolytic cell, but unfortunately this patent does not The actual condition of the side of the side cannot be obtained directly, and its accuracy is even more limited, and the dynamic process of the side growth process, the microscopic shape of the side of the side, etc. cannot be given.

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