东北大学硕士学位论文 Abstract
Research and Implementation on Automatic Control System of The
Annealing Furnace
Abstract
T h i s ar t i c l e descr i bes a fu l l hydrogen bell-type anne al i n g fur nace co n t r o l syst e m
composed by hydrogen bell-type furnace unit. The system uses PLC control system, which
is a complex system of PLC control system, either from the control points or the type of
data t o b e co l le ct e d fro m and t h e en t i r e sys t e m arch i te ctur e co m m u n i cat i o n s , represen t a
powerful PLC control functions. The PLC control system, easy to control, a high degree of
automation features.
A n neal ing proc es s p lays a very i m p o rtan t r o l e i n t h e he at t reat men t o f m e tal s ,
m a i nly fro m s o f ten ing m e tal har d nes s , rem o v i n g t h e i n ternal f orce o f th e m e tal an d
subdividing the internal organization of the metal. Annealing furnace as one of the major
equipment as steel strip production, has a key position and a good extent affect the yield,
quality and cost of the product. This article discusses how to implement the process of the
r eal izat i o n o f t h e an neal i n g proc es s . T h e an neal i n g has t h e char act eri s t i c s of t h e
automatic control and monitoring of the characteristics of the real-time monitoring of the
screen, using the Siemens S7 ser ies PLC and Wi n CC graphics configurat ion soft ware.
T h e anne al ing f urnace t e mperat ure cont r o l sys t e m u s e s t h e t rad i t i o n a l PID co n t r o l
algori thm, and a combinati o n of t he burner control t echnology, pulse cycle combust ion
m o d e . Thro ugh t h e co m b i nat ion o f b o t h , o b v i o u sly i m pro v e t h e a c curacy o f the
temperature control. Monitoring system is designed and made by the WinCC configuration
software, it is a redundant structure for communication between the host computer and the
PLC from Industrial Ethernet; the controller PLC with distributed I/O station via PROFIBUS
co n s t i t u t e t h e net w o rk, real-t i m e co n t r o l sys t e m eq u i p men t . T h e m o n itori n g sys t e m ,
displays the furnace process monitoring state and the real-time data. In order to realize the
true situation of the scene, monitor screens were designed to control all aspects of the site
i n f orm a t i o n . PLC a ch i eves t h e anne alin g fur nace co n t r o l tas k s thro ugh s t ruct u red
programming.
Th i s paper descr ibes th e s t r uct ure o f the enti r e anne al i n g f urnace syst e m ,
co n f igurat i o n , an d m o nit o r i n g sys t e m design , focu s i n g o n t h e s t udy o f t h e co n t r o l
algori t h m . M any m a n u fact u rer s u s e t h e co n t i n u ous co m b u s t i o n co n t r o l way, however t h e
effect is l im it ed. The t e mperat ur e co nt ro l met ho d of a n on-co nti nu ou s co ntr ol m et hod
is used in this paper. The pulse cycle combustion burner intermittent cycle work, improve
the quality of the annealing process. And burner intermittent alternating burning,
extend the life of equipment. In this paper full hydrogen bell-type annealing furnace project
control system is described, using Siemens Step7 programming software development design
t h e b u r ner cycle co m b u s tio n co n t r o l proc ed ures , an d u s e of th e h o s t co m p u ter Wi n C C
monitoring software to design a monitoring system. The run results demonstrate the system