Latest Innovations in Converter Process Modelling
The production of carbon and stainless steel is nowadays driven by using cheapest materials in order to be cost competitive under varying production conditions.In carbon steel production steelmakers are increasingly turning to higher phosphorous containing iron ores due to escalating raw material costs and declining ore reserves.Hence BOF converter shops are being forced to operate at higher than traditional phosphorous loadings which impacts turndown performance especially for lower phosphorous grades.In stainless steel production the traditional scrap-based EAF-AOD route is substituted by alternative process routes.These process changes have to be reflected by the Steel Expert process model package for carbon and stainless converters.The Steel Expert process model package comprises dynamic process guidance,a prediction model for simulation of the complete production process and a number of set point models for the different production steps.The extended functionality for BOF converters comprises enhanced MgO and lime saturation model; a calculation of solid and liquid slag weight and analysis based on the results from the saturation model; automatic blow-stop functionality for BOF converters equipped with sublance measurement in analogy to the existing auto-blow stop functionality for BOF converters with dynamic off gas measurement device.For AOD converter the functionality has been upgraded by introduction of a desiliconization phase for premelts coming with high Si-content,heating with FeSi and intermediate deslagging functionality.In addition a completely new human machine interface(HMI)for the Level 2 automation system has been developed and successfully installed within the last projects.
converter process modelling level 2 automation steel expert pure HMI
Rudolf HUBMER Helmut K(U)HB(O)CK Krzysztof PASTUCHA
Primetals Technologies Austria GmbH,4031 Linz,Austria
国际会议
the 6th International Congress on the Science and Technology of Steelmaking,ICS2015(第六届国际炼钢科技大会)
北京
英文
221-224
2015-05-12（万方平台首次上网日期，不代表论文的发表时间）