72MVA镍铁电炉检修与改进

Maintenance and Improvement of 72MVA Nickel Iron Electric Furnace

缅甸达贡山由中国恩菲设计的两台72MVA镍铁电炉,已完成第一个炉期的大修。一号电炉于2012年8月烘炉,2019年2月~5月停炉检修,炉期为六年半;二号电炉2013年5月烘炉,2020年12月~2021年5月停炉检修,炉期为七年半。本文对72MVA镍铁电炉大修及设计改进情况进行介绍,希望能有助于镍铁电炉技术及装备的发展。

The overhaul of the first furnace period of the two 72MVA nickel-iron electric furnaces de-signed by China ENFI in Dagon Mountain,Myanmar has completed where No.1 electric furnace,with the campaign length being six and a half years,started heating up in August 2012,and shut down for ma-intenance from February to May 2019;No.2 electric furnace started heating up in May 2013,and shut down for maintenance from December 2020 to May 2021,with the campaign length of seven and a half years.This paper introduces the overhaul and design improvement of 72MVA nickel-iron electric fur-nace,expecting to contribute to the development of nickel-iron electric furnace technology and equip-ment.