Multi-variety coke screening nonlinear control device and method

Abstract

The invention discloses a multi-variety coke screening nonlinear control device, which comprises a vibrating screen control regulator, a programmable logic controller (PLC) and a fuzzy control module, wherein the vibrating screen control regulator is respectively connected with a material flow valve and a vibrating screen and used for controlling the openness of the material flow valve and the vibration frequency of the vibrating screen; the PLC is connected with the vibrating screen control regulator and used for transmitting a control signal to the vibrating screen control regulator; and the fuzzy control module comprises a data acquisition sub-module. Correspondingly, the invention also discloses a multi-variety coke screening nonlinear control method. By adoption of the technical scheme provided by the invention, according to the characteristics of different types of coke raw materials with different qualities, the information of the coke raw materials can be detected and discriminated in real time, and the corresponding control method is employed, so the screening efficiency of coke can reach 85 percent and can be stabilized to be over 85 percent.

Description

technical field [0001] The invention relates to a screening treatment device and method, in particular to a coke screening control device and method. Background technique [0002] In modern large-scale metallurgical enterprises, it has become an indispensable and effective means to improve the quality of coke screening by screening the coke used in the blast furnace. The efficiency and stability of coke screening will directly affect the stability and stability of the blast furnace. high yield. [0003] At present, in the field of blast furnace coke screening control technology, a manual coke screening control method is commonly used, that is, the PLC (programmable logic controller) sets the unit time according to the stable blast furnace coke raw material quality information. The tonnage of furnace coke (or called the given weight of coke), manually adjust the screening regulator (PID), adjust the opening of the material flow gate and the vibration frequency of the vibrati...

AI Technical Summary

Problems solved by technology

However, in the actual production process, more and more companies purchase coke raw materials with diversified varieties, specifications, and origins, resulting in large fluctuations in the quality of blast furnace coke raw materials

In view of the fact that the quality factors such as strength, particle size and moisture of coke raw materials will directly affect the efficiency of coke screening, it is obvious that when the quality factors of blast furnace coke raw materials change, the existing manual coke screening control methods are lacking. The corresponding real-time control method will inevitably lead to unstable coke screening quality, seriously affecting the stability and high production of the blast furnace, and will also increase production costs and energy consumption due to excessive coke return

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