我厂轧钢加热炉的有效尺寸为:3.714×19.0m~2,加热坯料为60、75mm方坯,以重油为燃料,年产量14.4×10~4t。1991年6月对加热炉进行了较大规模的技术改造。主要内容是: ①将炉子加热段部分的炉墙加厚,增强了高温段保温性能,减少了砌体表面的散热损失; The effective size of the rolling furnace in our plant is 3.714 × 19.0m ~ 2, the heating billet is 60,75mm billet, heavy oil is used as fuel, and the annual output is 14.4 × 10 ~ 4t. June 1991 on the heating furnace for large-scale technological transformation. The main contents are as follows: ①The furnace wall of the heating section of the furnace is thickened to enhance the thermal insulation performance in the high-temperature section and reduce the heat loss on the surface of the masonry;