Patent · US Expired

Process and apparatus for at least temporarily simultaneously subjecting a molten metal to the action of a gas and fine-grain solid materials

US4986847A · kind A · utility

9Cited by

6References

20Claims

0Family size

Assignees

Fuchs Systemtechnik GmbH · DE
GFI Gesellschaft fur Industrieausrustung mbH · DE

Inventors

Hubert Knapp · Bühl, DE
Peter Hoffmann · Korschenbroich, DE

Key dates

Filing date	Nov 22, 1989
Grant date	Jan 22, 1991
Priority date	—
Expiry date	Nov 22, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P10/20
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

In a process for at least temporarily simultaneously subjecting a molten metal (5) in a metallurgical vessel (3) to the action of a gas and fine-grain solid materials, with a water-cooled first lance (17) for supplying the gas, in accordance with the invention the solid materials are supplied in the form of a conveyor stream (27) by way of a second lance (19). The solid materials are supplied in such a way that, after leaving the outlet opening (25) of the second lance (19), they are deflected by the gas (29) issuing from the outlet opening (23) of the first lance (17) and are supplied with said gas to the molten metal (5).

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