Abstract: By improving the thermal insulation of ladle, the whole process of ladle capping technology has changed the original ladle operation process, which provides an effective way for iron and steel enterprises to reduce cost, save energy and reduce emissions. This paper demonstrates the possibility of adding ladle capping device in a steel plant, and puts forward a windlass ladle capping device, which can adapt to the situation where the clearance of some old steel plants is limited, and makes it possible for these steel plants to carry out energy-saving transformation.

Key words: limited clearance, transformation, ladle capping device, windlass