Blast furnace coal injection quantity accurate automatic control method
A technology of blast furnace coal injection and coal injection volume, which is applied in the blast furnace, blast furnace details, steel manufacturing process, etc., can solve the problems of lack of self-learning and self-adaptive ability, and achieve the effect of effective intelligent behavior and good nonlinear problems
Inactive Publication Date: 2021-08-03
TANGSHAN IRON & STEEL GROUP +2
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The control system described in Document 2 is a combination of traditional PID control system and fuzzy mathematics, so that it has the ability to deal with uncertain and nonlinear problems, but it lacks effective self-learning and self-adaptive capabilities
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[0025] A precise and automatic method for controlling the amount of coal injection in a blast furnace, comprising the following steps:
[0026] Step 1. Combining fuzzy mathematics with neural network, researching and summarizing the mathematical model of the influence of various parameters on the amount of coal injection in the process of coal injection;
[0027] Step 2, input the mathematical model summarized in the research into Schneider MP7 industrial control software, debug the coal injection software online, find out the defects and incompatibility of the software and modify it; at the same time, find out the variable parameters in the mathematical model, In order to modify the parameters to adapt the software to different working conditions;
[0028] Step 3, the coal injection software reads the mathematical model of each parameter;
[0029] Step 4, the coal injection software reads the field data of blast furnace coal injection;
[0030] Step 5, the software interfac...
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The invention relates to a blast furnace coal injection quantity accurate automatic control method, and belongs to the technical field of blast furnace ironmaking. According to the technical scheme, fuzzy mathematics and a neural network are combined, and a mathematical model of influences of all parameters on the coal injection quantity in the coal injection process is studied and summarized; the studied and summarized mathematical model is input into Schneider MP7 industrial control software, the coal injection software is debugged on line, defects and incompatibility of the software are found out and modified so as to modify parameters to enable the software to adapt to different working conditions; the coal injection software reads all parameter mathematical models; the coal injection software reads blast furnace coal injection field data; and a software interface displays a coal injection quantity calculation result. The blast furnace coal injection quantity accurate automatic control method has the beneficial effects that based on the mathematical model combining fuzzy logic and the neural network, the Schneider MP7 industrial control software with good openness is used as a platform, and the purpose of intelligently regulating and controlling the coal injection quantity of the blast furnace is achieved.
Description
technical field [0001] The invention relates to a precise and automatic control method for the amount of coal injection in a blast furnace, belonging to the technical field of blast furnace ironmaking. Background technique [0002] Iron and steel is a pillar industry for the country's development. In 2019, China's crude steel output reached 996.342 million tons and pig iron output reached 809.365 million tons. It can be seen that China's steel production is dominated by long processes, so blast furnace ironmaking has an irreplaceable role in China at this stage. role. Blast furnace ironmaking requires a large amount of coke, and the coking process produces a large amount of harmful substances that cause pollution. Moreover, although my country's coal resources are abundant, coking coal resources are limited, accounting for only 27% of the total coal resources. High-quality coking coal is also It only accounts for 19% of coking resources, and the uneven distribution of resour...
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IPC IPC(8): C21B5/00G06N3/04
CPCC21B5/003C21B5/006C21B2300/04G06N3/043
Inventor 张建良肖洪李文惠李传辉王广伟曾琦刘磊张兆华张文强
Owner TANGSHAN IRON & STEEL GROUP