Production process control method for prebaked anode

Abstract

The invention relates to a production process control method for a prebaked anode used for aluminum electrolysis. The production process control method comprises the following steps of: automatically importing and storing the data in a data analysis server in a classified way by utilizing field level data communication platform middleware, wherein the data is obtained by processing prebaked anode production process field computer programmable logical controller (PLC) data by using a field bus data conversion terminal and an offline measurement data acquisition terminal; finishing the real-time monitoring and the rapid response of raw material petroleum coke, asphalt performance parameters, calcination process technical parameters, anode preparation process technical parameters, roasting process technical parameters and assembly technical parameters of the overall prebaked anode production by using the data analysis server; and transmitting data analysis server data analysis results of each workshop and quality tracking and impact analysis results of each workshop to a client server through a plant domain level data exchange middleware by using a carbon plant data analysis server. By the method, the production efficiency and the anode quality of the overall prebaked anode are improved, and production process energy consumption and operation cost are reduced.

Description

technical field [0001] The invention relates to a production process control method, in particular to a production process control method of a prebaked anode for aluminum electrolysis. Background technique [0002] As the main anode material in the aluminum electrolysis process, prebaked anode has a direct impact on the current efficiency of aluminum electrolysis, greenhouse gas emissions and production and operation costs. At present, the quality of delayed petroleum coke and modified pitch as raw materials for prebaked anode production is unstable, and the quality of calcined petroleum coke fluctuates widely due to differences in the control conditions of the calcination process. The hysteresis characteristic of baked anode production itself leads to the following problems: [0003] 1. Each process of prebaked anode production can only be operated independently, and it is impossible to realize effective monitoring and timely adjustment of the quality of raw materials,...

AI Technical Summary

Problems solved by technology

At present, the quality of delayed petroleum coke and modified pitch as raw materials for prebaked anode production is unstable, and the quality of calcined petroleum coke fluctuates widely due to differences in the control conditions of the calcination process. The hysteresis characteristic of baked anode production itself leads to the following problems:

[0003] 1. Each process of prebaked anode production can only be operated independently, and it is impossible to realize effective monitoring and timely adjustment of the quality of raw materials, intermediate products and final prebaked anode products between processes, which directly affects the continuous and stable production of high-quality prebaked anodes, greatly Increase process energy consumption and production costs;

[0004] 2. A single process cannot realize the rapid response and timely adjustment of corresponding key process parameters according to product quality changes, resulting in a large number of unqualified products in the process

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