An Intelligent Control Method of Sintering Endpoint to Improve Carbon Efficiency

Abstract

The invention provides a sintering end point intelligent-control method capable of improving the carbon efficiency. According to the sintering end point intelligent-control method, the comprehensive coke ratio is selected as an index for measuring the carbon efficiency, a sintering end point is selected as an index for measuring the stability and the smoothness of the sintering process, and the trolley speed of a sintering machine is selected as the control quantity. The sintering end point intelligent-control method comprises the following steps: first, determining input parameters of a sintering carbon efficiency prediction model by utilizing a Spearman correlation analysis method, and constructing a comprehensive coke ratio predication model by utilizing a neural network; next, optimizing the sintering carbon efficiency by adopting a particle swarm optimization algorithm, so as to acquire the optimized set value of the trolley speed; then, acquiring the trolley speed control quantity by adopting a sintering end point expert-fuzzy control strategy; and finally, fusing, optimizing and controlling the acquired trolley speed by adopting a fuzzy satisfaction method, so as to acquirethe final trolley speed control quantity. The sintering end point intelligent-control method acts after the sintering process; the sintering efficiency is improved when the stability and the smoothness of the sintering production are guaranteed; the dual requirements for the high coke utilization ratio as well as the stable and smooth production in the iron ore sintering process are met; and the sintering end point intelligent-control method has the industrial application value.

Description

technical field [0001] The invention relates to the field of energy saving and consumption reduction in steel sintering process production, in particular to an intelligent control method of sintering end point for improving carbon efficiency. Background technique [0002] Iron ore sintering is an important raw material preparation process for iron and steel smelting, and sinter is the main raw material for blast furnace ironmaking. Sintering is a series of complex physical and chemical reactions. Sintering production is an energy-consuming link in the iron and steel industry second only to blast furnace ironmaking. Energy consumption in sintering production is mainly reflected in three aspects: coke, gas and electric energy, of which coke powder accounts for about 80%. Therefore, reducing coke consumption in the sintering process can greatly reduce sintering energy consumption and carbon emissions, thereby realizing green manufacturing. [0003] The sintering production e...

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Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide an intelligent control method for the sintering end point that improves the carbon efficiency to solve the above-mentioned technical problem that the current sintering production equipment needs to ensure the full combustion and minimum use of coke when the sintering process runs smoothly. technical flaw

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