Sliding gate valve for a metallurgical vessel

US5698129A · kind A · utility

Assignee

• Stopinc Aktiengesellschaft · CH

Inventors

• Werner Keller · Steinhausen, CH
• Walter Toaldo · Zug, CH
• Hans Muller · Essen, DE
• Werner Plattner · Hünenberg, CH
• Anton Pfyl · Regensdorf, CH

Key dates

• Filing date: Feb 20, 1996
• Grant date: Dec 16, 1997
• Expiry date: Feb 20, 2016

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B22D41/24
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A metallurgical vessel has a refractory head piece and a vessel outlet at the refractory head piece. A sliding gate valve for this metallurgical vessel includes a housing frame that is mounted to the vessel at the outlet so as to be removable therefrom. A slider unit is mounted in the housing frame having a sliding plate therein. A refractory base plate is also mounted in the housing frame, and has an upper side with a plane sliding surface that is engaged with the refractory head piece and a lower side having a lower sliding surface that is parallel to the plane sliding surface. The sliding plate is pressed against the lower sliding surface of the refractory base plate. The refractory base plate is fixed in the housing frame in a direction parallel to the sliding surfaces of the refractory base plate, but is movable in the housing frame in a direction perpendicular to the sliding surface of the refractory base plate. Spring elements bias the sliding plate against the lower sliding surface of the refractory base plate, and the refractory base plate against the refractory head piece. By being able to easily remove the housing frame, both the refractory base plate and the sliding pla…