Temperature online measuring method for plate blank in production process of heating furnace

Abstract

A temperature on-line measuring method for a plate blank in the production process of a heating furnace relates to the technical field of temperature online detection of the plate blank in the heating furnace. The temperature online measuring method comprises the following steps: establishing a plate blank temperature soft measurement model of a least squares support vector by using history data; optimizing parameters of an LS-SVM (Least Squares Support Vector Machine) plate blank temperature soft measurement model by adopting a particle swarm optimization algorithm; and after the model is established, calculating the temperature of the plate blank in real time. According to the temperature online measuring method disclosed by the invention, the temperature of the plate blank can be obtained in real time at high precision; high calculation speed and high calculation precision are obtained; the requirement of online production can be met; and the aim of improving the control stability is achieved; the temperature online measuring method can be operated on line to help operators learn about the heating condition of the plate blank in the furnace, thereby guiding the adjustment of the heating system, improving the heating quality and reducing energy consumption; the temperature online measuring method is wide in application range and can be used for determining the temperature of the plate blank or a plate coil in other complex industrial processes by properly modifying a data source; and the temperature online measuring method can conveniently share information with other links and brings convenience to providing reference information for the operation of other links.

Description

technical field [0001] The invention relates to the technical field of on-line detection of slab temperature in a heating furnace, in particular to an on-line measurement method of the slab temperature in the production process of a heating furnace. Background technique [0002] The heating furnace is an important processing link in the hot rolling production process. This link is before the hot rolling process. Its processing purpose is to heat the slab to the rolling temperature required for hot rolling, thereby providing necessary conditions for the smooth progress of the hot rolling process. . During the production process of the heating furnace, if the temperature of the slab out of the furnace is too high, it will lead to an increase in the oxidation and burning of the slab, a decrease in the finished product rate, and an increase in energy consumption; if the temperature of the slab out of the furnace is too low or the temperature distribution of the slab does not mee...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the shortcomings of existing methods, the present invention proposes an online measurement method for slab temperature during the production process of the heating furnace, so as to achieve the purpose of obtaining the slab temperature in real time and improving the heating quality

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