Model for optimally controlling heating system of large walking beam type heating furnace plate blank

Abstract

The invention relates to a model for optimally controlling a heating system of a large walking beam type heating furnace plate blank, which belongs to the technical field of industrial heating. A billet steel heating system optimizing model is adopted to optimize the order of entering the furnace for the billet steel of different steel type; the billet steel heating time and the temperature of each segment of the heating furnace are optimized; and the temperature change of the billet steel in the heating process is predicted. The model consists of a temperature control module of a single steel type of billet steel, and a heating optimal control module of multiple steel types of billet steel, wherein one module aims at simulating the heating process of a signal block of billet steel, and the other module aims at simulating the heating process under the condition of 10 blocks of billet steel entering the furnace, i.e. mixed loading furnace entering condition. The model is adopted to optimize the heating system of the billet steel so as to avoid the overhigh heating temperature of the billet steel and reduce the oxidation burning loss of the billet steel; reasonable heating time can be adopted to reduce unnecessary fuel waste and fuel consumption; and the model is conducive to scientifically and reasonably regulate the operation parameters of the heating furnace and meet the requirements on billet steel heating quality.

Description

technical field [0001] The invention belongs to the technical field of industrial furnace slab heating, and in particular provides a model for optimizing and controlling the slab heating system of a large-scale walking beam slab heating furnace, which is applied to the optimization control of the heating system of a hot-rolled thin slab heating furnace, and determines different The sequence of steel slabs entering the furnace, heating time and temperature control, and predict the change law of steel slab heating temperature. A large amount of energy is saved, while the heating quality of the billet is improved, and the oxidation and burning loss of the billet is reduced. Background technique [0002] With the rapid development of hot-rolled coil steel production, the upgrading of products and process equipment is also relatively fast, and the production of high value-added steel plates has higher and higher requirements for the heating process of the heating furnace. The re...

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Problems solved by technology

In the actual operation of heating furnace production, the heating system is determined through experience, and no scientific calculation method has been established to determine the heating system under the condition of different billets and different initial temperatures.

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