|About this Abstract
||2020 TMS Annual Meeting & Exhibition
||PbZn 2020: The 9th International Symposium on Lead and Zinc Processing
||Long Service Life of Removable Roof at Hindustan Zinc
||Allan MacRae, Sanjay Pal
|On-Site Speaker (Planned)
The furnace was started at full production in February 2006. The originally roof design had water channels on top of a mild steel plate with a refractory lining on the hot face. The mild steel roof would crack which led to water entering the furnace.
The roof was changed five times from 2006 to 2009. Repairs were so frequent that a standby roof was kept ready for rapid replacement. Water ingress caused refractory failures and campaigns as short as seven months.
In 2009, a water-cooled roof was installed on the Ausmelt TSL- Lead furnace with three operation in Single Furnace at the Hindustan Zinc Chanderiya Lead-Zinc Smelter, Chittorgarh, India. The roof has been operating for nearly 10 years without replacement of a single copper element.
Operation History and data are presented to highlight the successful long-term performance of the roof, and the benefits achieved by implementing the chosen design.