我厂400/300/280线材车间的58.6米~2连续加热炉在1982年6月进行第一次技术改造。一、改造的项目和内容1.减少炉底管面积。取消原有的4条单横水管,用耐火高铝砖墙支撑纵水管。使炉底水管的吸热面积从22.1米~2减少至14.4米~2,使管底比Ω值从0.37降至0.246。 58.6 m ~ 2 continuous heating furnace of 400/300/280 wire workshop of our factory was carried out the first technological transformation in June 1982. First, the transformation of the project and content 1. Reduce the furnace floor area. Cancel the original four single horizontal water pipes, refractory high alumina brick wall support vertical pipes. So that the bottom of the water pipe heat absorption area from 22.1 m ~ 2 reduced to 14.4 m ~ 2, so that the bottom of the Ω ratio from 0.37 to 0.246.