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

An optimized control and slab heating technology, applied in lighting and heating equipment, furnaces, furnace types, etc., can solve problems such as the heating system that has not yet established a scientific calculation method, achieve great social value, increase furnace temperature, and reduce energy consumption Effect

Active Publication Date: 2010-08-18
SHOUGANG CORPORATION
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AI Technical Summary

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.

Method used

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

Examples

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Embodiment Construction

[0010] Using the steel grade heating system design and the mixed heating design model, the heating time of the billet in the furnace and the corresponding temperature control strategy of each section of the furnace are optimized under different steel grades and different furnace entry temperatures. The model can be used to predict the furnace temperature control of each section of the heating furnace, the heating time and the variation law of the slab heating temperature during the heating process under the condition of single steel grade or different steel grades or different steel grade slab entering furnace temperature and slab mixed loading. For example: optimize SPHC, Q345, ultra-low carbon steel and other steel types, the slab heating time in the furnace and the heating temperature of each section under different furnace entry temperatures, to provide a basis for improving the current billet hot charging and hot delivery system.

[0011] The key technology to optimize and...

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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...

Claims

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Application Information

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IPC IPC(8): F27B9/40
Inventor 王敏王凤琴宁林新孙茂林余威刘志民于浩淼
Owner SHOUGANG CORPORATION
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