Process for producing steel casting ladle monolithic refractory lining

US5993703A · kind A · utility

Assignee

• Dolomitwerke GmbH · DE

Inventors

• Heinz Stripp · Dinslaken, DE
• Horst Tiemann · Iserlohn, DE
• Roland Kessler · Dortmund, DE

Key dates

• Filing date: Aug 2, 1996
• Grant date: Nov 30, 1999
• Expiry date: Aug 2, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D41/023
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

When the wall and bottom of a steel casting and handling ladle are provided at the same time with a refractory monolithic lining, the lining in the lower area of the wall is often damaged during intermediate repairs of the bottom. According to a new process, wall and bottom are lined one after the other. A hose-like inflatable sealing body is secured to the bottom part of the template 4 when beginning to introduce the casting mass in the wall area and is inflated so that it seals the template 4 up to the height that corresponds to the desired thickness of the bottom. As soon as the casting mass in the lower wall area is sufficiently set, the sealing body 2 is deflated and removed, then the refractory casting mass is introduced into the bottom area up to the desired height. This process is suitable for steel casting and handling ladles and for similar metallurgical vessels.