Tata Steel's blast furnace 'G' upgrade--design concept, project development and operating results

摘要

In April 2005, the upgraded blast furnace "G" of Tata Steel was blown in after a four-months shutdown in which it was rebuilt on the existing foundation. Despite several plant constraints, it was possible to increase the furnace working volume by 45 percent. The project covered significant interventions: on the stockhouse, top charging system, furnace cooling system, casthouse, slag granulation, PCI, blast system, and gas cleaning, to cope up with the changed operating conditions. In this paper the key points of the design, the project development and a summary of the operating results are presented.