Acid and Basic Open-Hearth Steel-making Practice

Application of Open System to Process Automation in Iron- and-steel making

Nippon Steel Corporation led the steel industry in adopting general-purpose personal computers and operating systems as process computer systems for automatic optimal control and developing the middleware NS SEMI SYSTEM in the activity of open system solution. The enhancement of middleware function has made the extension of adopting process field. Nowadays, the renewals of process computers pro...

Immersion Pyrometry and Open Hearth Furnace Productivity FASTER STEELMAKING AT RAVENSCRAIG

It is nowadays generally accepted that controlling the tapping temperature of steel by immersion pyrometry is an important means of improving steel quality. Broadly speaking, if the steel is too hot when tapped the ingots tend to crack, and if too cool they tend to suffer from “shell” on the surface and non-metallic inclusions beneath. From this point of view it is now simply a question of esta...

Basic principles in impression making.

Expert Systems in the Steel Making Industry

This paper presents three prototypical expert systems that were developed in different fields of the steel making industry. It is described which kind of knowledge has to be represented, what are the techniques required for intelligent reasoning, and why expert systems offer better solutions to the described problems than traditional programming approaches. From the given applications the main ...

Center for Advanced Sustainable Iron & Steel Making

Current blast furnace technology is a two-stage ironmaking process that requires that iron ore concentrate first be formed into pellets, fired at 1260°C, cooled, transported to the blast furnace, and then re-heated to approximately 1500°C to produce pig iron. This heating, cooling, and then reheating wastes a great deal of energy, which would be saved if the ironmaking process had only a single...