What are the structural components of the water-cooled furnace roof of EAF? The furnace roof of an electric arc furnace generally adopts a tubular water-cooled and tightly arranged furnace cover structure. The furnace roof includes the roof body and the receiving hopper device. The main structural framework is made of seamless steel pipes into a circular shape, which serves not only as a requirement for the strength of structural components but also as a main inlet and outlet pipeline, connecting various cooling water pipes through the main inlet and outlet pipelines.

The rest are composed of slightly smaller sized tightly packed tubes. The water-cooled plate is easy to replace and maintain, and its service life is ≥ 3000 heats. The lower part of the receiving hopper adopts water-cooled material pipes. The inlet and outlet cooling pipes of the furnace cover are made of flange type stainless steel metal hoses (equipped with rotary adapters), while the other water cooling pipes are made of handle type stainless steel metal hoses. The central part of the furnace cover is a small ramming central furnace roof with three electrode holes, made of refractory pouring material.