Patent · US Expired

Casing assembly for injecting material into a metallurgical vessel

US4709905A · kind A · utility

3Cited by

1References

9Claims

0Family size

Assignee

Didier-Werke AG · DE

Inventors

Manfred Winkelmann · Krefeld, DE
Udo Muschner · Tönisvorst, DE
Pierre Gerber · Zumikon, CH

Key dates

Filing date	Apr 30, 1986
Grant date	Dec 1, 1987
Priority date	—
Expiry date	Apr 30, 2006

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB22D1/005
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A casing assembly includes a nozzle brick to form part of a wall of a metallurgical vessel. The nozzle brick has therethrough a conical opening defined by a conical inner surface. A casing to be inserted into the conical opening has a truncated conical shape including a conical outer surface and an axially extending flow through opening. The conical opening and the casing have coaxial center axes, and the conical inner and outer surfaces extend at equal angles of inclination to such axes. The conical inner surface is jacketed with a thin metal shell having a conical shape with the same inclination as that of the conical inner and outer surfaces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.