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Study on Mathematical Mode for Roller-Hearth Furnace and Its Application to the Computer Control System

Author: TangHao
Tutor: ChenJianXun
School: Wuhan University of Science and Technology
Course: Applied Computer Technology
Keywords: Plate production Roller hearth continuous heat treatment furnace Plate Temperature Prediction Mathematical model Optimal control
CLC: TG155.1
Type: Master's thesis
Year: 2009
Downloads: 135
Quote: 2
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Abstract


Roller Hearth Furnace with easy to automate , heating quality , continuous operations yield a series of advantages , has been widely applied to the plate heat treatment . Level of control roller hearth furnace heat treatment to improve product quality and production , energy consumption is of great significance . This paper studies the two machine parts , roller hearth normalizing furnace automation control system include: - on the basis of detailed analysis of normalization the furnace steel plate heat transfer mechanism , the establishment of a steel plate in the mathematical model of the process of change of the temperature in the furnace ; the model predicts that steel temperature based on dynamic real-time correction to the running speed of the furnace and the steel plate , so that the steel plate eventually meet the requirements of the heating system in accordance with the process requirements . Compact furnace complex process and different specification steel plate mixed phenomenon , the control system can effectively simulating a plate in the furnace heating heating up the whole process , the respective speed and overall furnace zone temperature of each plate and furnaces find excellent . The actual operation shows that the system to improve the degree of automation of the production line and production efficiency , achieved satisfactory control effect . This paper mainly include : (1) roller hearth normalizing furnace automation control overall architecture of the system and working mechanism . ( 2 ) In accordance with the principles of heat transfer plate temperature changes mathematical model , the use of this model is made ??of steel heat treatment process simulation and steel temperature forecast . (3) the use of the simulation model of the steel plate of the heating process , the calculated different specifications, different target temperature of the steel sheet in the furnace require time and oven temperature setting . (4) In the actual running of the steel plate , the holding time of the process requirements for the target , and the establishment of a computer system to automatically control strategy , all the speed of the steel sheet in the furnace and districts furnace can automatically make adjustments for the different working conditions, each plate is of acceptable quality .

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > Heat treatment > Heat treatment machinery and equipment > Heat treatment furnace
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