Method for controlling on-line prediction of continuous casting blank quality

A continuous casting billet and quality technology, which is applied in the control field of continuous casting billet quality online prediction, can solve the problems of not being used online and the model not being hot tested.

Active Publication Date: 2012-01-18
BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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Problems solved by technology

However, due to various reasons, the model has not been hot-tested, nor used online

Method used

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  • Method for controlling on-line prediction of continuous casting blank quality
  • Method for controlling on-line prediction of continuous casting blank quality
  • Method for controlling on-line prediction of continuous casting blank quality

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Experimental program
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Embodiment Construction

[0033] (1) Continuous casting times: 1140474

[0034] This pouring time includes 7 heats of low carbon steel SPHC molten steel in heats 111A04483, 111A04484, 111A04485, 111A04486, 111A04487, 111A04488, 111A04489, and adopts 35 rules for judging the quality of automobile plates.

[0035] Judgment is carried out as follows:

[0036] 1: The casting state information tracking module of the quality judgment system and the real-time data collection process of influencing factors detected the arrival of 111A04483 heats and the pouring start signal of the furnace in sequence, and the system initialized the real-time data table of pouring times;

[0037] Two: The acquisition process begins to collect abnormal event information, pouring information and actual measurement data of continuous casting process parameters, and store them in the corresponding data storage unit;

[0038] Three: The pouring length is between 0.46m and 2.53m, and the system continuously detects the automatically...

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Abstract

The invention discloses a method for controlling on-line prediction of continuous casting blank quality, which belongs to the field of metallurgical automation control. In the method, a comprehensive quality prediction rule based on an expert system, mathematical statistics and a neural network is programmed by secondary control software, and data communication is performed by the secondary control software and a primary basic automatic control system, so that the automatic prediction of casting blank quality in the continuous casting production process is realized; and a quality judgment system overall framework comprises an influence factor real-time data acquisition module, a casting state and casting information tracking module, an abnormal event and casting blank quality prediction module, an off-line simulation system, a quality prediction system database, a primary communication interface module and a system human-machine interface (HMI) picture. The method has the advantage that the on-line automatic prediction of the casting blank quality in the continuous casting production process is realized.

Description

technical field [0001] The invention belongs to the field of metallurgical automation control, and in particular provides a control method for online prediction of continuous casting slab quality, which can predict and forecast the quality of continuous casting slab online. Background technique [0002] In recent years, hot delivery and hot charging and direct rolling compact technology have been developed rapidly. These new technologies require that the surface quality and internal quality of the slab can basically meet the requirements of direct rolling without cleaning, and the slab has no chance to go off-line for manual sampling quality inspection, so the traditional cold continuous casting slab quality inspection method It can no longer meet the requirements of these new processes, and hot online inspection has become a necessary means for quality control of slabs. However, to carry out online comprehensive detection of various types of quality defects of cast slabs r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D11/16
Inventor 钱宏智胡丕俊蒋学军孙丹李建建孙振超
Owner BEIJING SHOUGANG AUTOMATION INFORMATION TECH
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