Management method of electrolytic aluminum whole life cycle

Abstract

The invention relates to a management method of electrolytic aluminum, in particular to a management method of an electrolytic aluminum whole life cycle. The management method comprises the stages oftank building, roasting, starting, normal production operation and tank stopping. In the tank building stage, during construction, construction standards and technological requirements are set up forconstruction units, and construction information is managed and recorded; in the roasting stage, during roasting, material information, operation information and tank condition information of an electrolytic tank are recorded; and in the starting stage, during starting, operation parameters of the electrolytic tank are recorded and monitored. The management method has the advantages and effects that in the operation stage of the electrolytic tank, a mathematical model is built for the electrolytic tank, and analysis factors of several core parameters of the electrolytic tank are built correspondingly, so that the purposes of prolonging the life of the tank and improving the electrolytic production efficiency are achieved.

Description

technical field [0001] The invention relates to a management method of electrolytic aluminum, in particular to a management method of the whole life cycle of electrolytic aluminum. Background technique [0002] Aluminum electrolysis is a typical continuous process industry. Product Life-Cycle Management (PLM) runs through the five stages of the entire life cycle of the electrolytic cell, namely, the cell building stage, the roasting stage, the start-up stage, the normal operation stage, and the shutdown stage. In the tank stage, the key data parameters of the electrolyzer at different life stages are collected, covering equipment, energy, laboratory, material, measurement and other major categories of data that affect the operation of the electrolyzer, and the mathematical model of the electrolyzer is established. The current manufacturing execution system of the electrolytic aluminum plant only focuses on the normal production and operation stage of the electrolytic aluminu...

AI Technical Summary

Problems solved by technology

The current manufacturing execution system of the electrolytic aluminum plant only focuses on the normal production and operation stage of the electrolytic aluminum plant. This management system can only maintain the production and operation of the electrolytic aluminum plant in a single way, and can only meet the conventional needs of the electrolytic aluminum plant, and even exists The following disadvantages:

[0003] 1. The existing manufacturing execution system only integrates the information of normal production and operation, but there are blind spots in the management of the electrolytic cell during the cell building stage, roasting stage, start-up stage, and cell shutdown stage, and it is impossible to grasp and analyze the overall situation of aluminum electrolytic production. And according to the production characteristics of the electrolytic aluminum industry, a mathematical model is established to predict and analyze the core control parameters of electrolytic aluminum

For example: the life of the electrolytic cell is one of the important economic indicators of the electrolytic aluminum plant, the selection of the electrolytic cell construction material and processing technology by the cell construction unit, the early damage of the electrolytic cell, the temperature rise curve in the roasting start-up stage, and normal production The operation and maintenance level of operation will affect the life of the electrolyzer, while the existing system only analyzes and discusses the factors affecting the electrolyzer in production management

[0004] 2. The existing manufacturing execution system only counts equipment, materials, and energy, and lacks a method for developing customization based on specific operations of aluminum electrolysis, such as: aluminum tapping operation, aluminum distribution operation, pole changing operation, and busbar lifting operation, etc.

[0005] 3. The current electrolytic aluminum manufacturing execution system lacks information statistics on the tank building phase, roasting phase, start-up phase, and tank shutdown phase. When production abnormalities occur, it is impossible to perform feature extraction on electrolytic cells with the same characteristics, and it is impossible to realize Signature monitoring of high-risk electrolyzers

[0006] 4. The current electrolytic aluminum manufacturing execution system lacks mathematical models for the core parameters of the electrolytic cell, such as: molecular ratio adjustment mathematical model, fluorine salt addition data model, etc., so there are blind spots in the control of electrolytic aluminum core parameters

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