Installation of décrassage of the plungers of a vessel of a vacuum treatment of the liquid steel

摘要

The invention relates to an installation (20) of cleaning of the tubular snorkels (12, 13) made of refractory material of a vessel of a vacuum treatment of the liquid steel having a bottom of the shaft supporting the snorkels (12, 13) arranged vertically and delimiting between them an intermediate space. The installation comprises a frame (21) that can be moved horizontally and vertically and having, at its upper part, means (30) of scraping of the bottom to top and the external surface of the snorkels (12, 13).