Description
1.3.4
The Gwangyang Blast Furnace No. 3 experienced an early relining approximately 12 years after its initial blow-in due to premature wear of copper staves leading to shell damage and damage to the hearth cooling system caused by hot metal leakage at the No.1 taphole. To expand the internal volume from 4600 m³ to 5500 m³, a complete dismantling of the furnace body was undertaken. During this...
This paper will discuss a systematic approach for the design and construction of a new hearth, employing an “inside-out” approach. A comprehensive diagnostic is first performed by reviewing thermocouple and operational data from the current campaign to determine expected process loads in the new campaign. Three-dimensional thermal models of the new hearth design are analyzed using boundary...
Stave wear in blast furnaces is a critical issue affecting operational efficiency and campaign longevity. Several factors influence wear severity, including furnace design, operational practices, raw material properties, and cooling performance. However, stave wear patterns are often unpredictable and irregular, making accurate monitoring essential for maintaining the integrity of the cooling...