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Material tracing and control method in roller hearth heat-treated furnace

A heat treatment furnace and tracking control technology, applied in the direction of heat treatment process control, heat treatment equipment, furnaces, etc., can solve the problems of time-consuming and laborious, and achieve the effect of strengthening control stability and accuracy, and prolonging the accident-free period.

Active Publication Date: 2010-04-14
WISDRI WUHAN AUTOMATION
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Problems solved by technology

This leads to parameter values ​​that were easy to use in the previous period, but after a period of time, an error occurs in the application, and the parameters need to be manually readjusted, which is time-consuming and laborious.

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  • Material tracing and control method in roller hearth heat-treated furnace
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  • Material tracing and control method in roller hearth heat-treated furnace

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Embodiment Construction

[0026] Below in conjunction with accompanying drawing, the present invention will be further described with specific embodiment:

[0027] In order to facilitate the understanding of the material tracking control method used in the roller hearth heat treatment furnace proposed by the present invention, the composition and training method of the RBF neural network used in the present invention are first introduced in detail.

[0028] see figure 1 The schematic diagram of the RBF neural network model shown in this paper uses a typical RBF neural network structure, which consists of three layers, namely the input layer, hidden layer, and output layer. The role of the input layer nodes is to transmit signals to the hidden layer, hidden layer The layer nodes are composed of radial basis functions, and the output layer nodes are usually simple linear functions.

[0029] It is applicable to this paper to assume that the network has 4 input units (material tracking error x 1 , curren...

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Abstract

The invention relates to the technical field of thermal treatment, in particular to a material tracing and control method in a roller hearth heat-treated furnace. The invention utilizes RBF nerval net setting segmenting speed compensating factor to achieve the tracing control of materials, the whole furnace length is divided into several segments, each segment defines a segmented speed compensating factor, and the segmented speed compensating factor of each segment is assigned aiming at each block of billet material tracing information storage, and n groups of databases are established for each segment, and the sending speed of current segment is calculated out through a material tracing analog model established by the RBF neral net network and through utilizing the newest data groups to refresh the segmented speed compensating factor of the current segment according to the tracing position information of steel plate materials and according to the segmented speed compensating factor of the current segment. The material tracing and control method reinforces the control stability and precision of he material tracing system, prolongs the no-accident and high-efficiency production time of a roller hearth heat-treated furnace, has the characteristics of high control precision and strong system adaptability, and the position error of material tracking information and the actual position of a steel plate can be controlled within 50 mm.

Description

technical field [0001] The invention relates to the technical field of heat treatment furnaces, in particular to a material tracking control method used in roller hearth heat treatment furnaces. Background technique [0002] An effective measure to improve the quality of steel plates in the iron and steel industry is to heat treat steel plates, and roller hearth heat treatment furnaces are widely used because of the high quality of processed steel, high output, and easy mechanization and automation operations; heat treatment furnace slab materials Tracking is the basis for optimal heating control of roller hearth heat treatment furnaces. It provides material information for temperature control and optimal settings. The control accuracy of material tracking directly affects the quality and output of steel plates. [0003] The hearth rollers of heat treatment furnaces mostly adopt a one-to-one control mode with one roller table and one frequency converter, which means that dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C21D11/00F27B9/40
Inventor 祝威
Owner WISDRI WUHAN AUTOMATION
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