Converter smelting control device and control method based on reference heat grouping

Abstract

The present invention relates to a converter smelting control device based on reference furnace grouping, the control device includes an L2 reference furnace group definition storage module, an L2 furnace state judgment module, an L2 data collection module, an L2 furnace group judgment module, L2 reference furnace data extraction module, L2 model calculation module, L2 production control module, L1‑L2 communication module, L1 converter production control module and reference furnace data storage module; among them, L1 is the basic automatic control system, which controls the equipment through PLC program L2 refers to the process control system of the converter, which is used for the process control of production; this scheme realizes that the converter model is grouped according to the difference in the target phosphorus (P), target carbon (C) and target slag amount in the furnace during the calculation process , and control in groups to improve the hit rate of carbon and temperature at the end of the converter.

Description

technical field [0001] The invention relates to a control device, in particular to a converter smelting control device based on reference furnace grouping, and belongs to the technical field of converter smelting. Background technique [0002] The static model of the converter is mainly based on the properties such as the composition and temperature of the initial molten iron, the amount of scrap added and the target composition and temperature of the molten steel, etc., to calculate the auxiliary materials, total oxygen blowing amount, ore, etc. that need to be added to this furnace, as an automatic tool for converter steelmaking. in accordance with. During the smelting process, there are differences in the temperature rise coefficient and decarburization coefficient of different steel types, resulting in that the hit rate of the end point cannot be greatly improved. The traditional method of grouping according to carbon content is based on the premise of calculating the a...

AI Technical Summary

Problems solved by technology

During the smelting process, there are differences in the temperature rise coefficient and decarburization coefficient of different steel types, resulting in that the hit rate of the end point cannot be greatly improved

The traditional method of grouping according to carbon content is based on the premise of calculating the amount of slag based on basicity, which cannot adapt to changes in phosphorus and magnesium oxide in slag

At present, the converter model based on slag basicity calculation can still use the grouping method of end point carbon, but with the introduction of phosphorus balance calculation method into the control model, this grouping method of steel grades cannot satisfy

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