Automatic Control System Of The RH Degassing Plant In Pangang

In order to adjust structure of production,meet requirement of market and improve economic benefit,cancel old mould casting system,Pangang decided to enlarge continuous casting ratio and eliminate mould casting system,Pangang decided to install one new bloom casting machine,one new 130t LF plants,one new 130t RH degassing plants。This RH can treat 1000000t molten steel in every year,It meet mostly request of the rail mill that they produce high quality and high speed heavy rail。 The writer is a stuff member of this project.This text introduce mainly the basic conditions and the control request of control system ,the produce process of RH degassing plant , performance of equipment for mechanism and electric , also analyzes in detail and builds up the automatic control system。It analyse and study detailedly control request ,control theory ,control level, structure of control system,control function for automatic control system of newly-built RH degassing plant.on basis of the development of modern control technology and apply of the network technology and field bus technology, this text analyzes the basic theory of the RH plants and principle of degassing ; expatiates in detail the network configuration and communication protocol of Ethernet and Profibus-DP ; concretely describes the forms of control system configuration,the function and features of its software and hardware designs ; also , introduces in detail operate mode and control function of control system,,for example,top lance control,vacuum pump system control and alloying system control etc 。 This text also discussed status model and process prediction model for two level computer .Design of automatic control system follow pioneer and credibility and usableness ,Also It keep to save investment.Quality of equipment achieve in advance level of the present age. Those work are provided for reference of newly-bulit project and changes for old project in Pangang corporations...