Injectall Limited

Uss Engineers and Consultants, Inc.

William A Griffiths

Kenneth W Bates

Norman H Watts

For introducing gases, wires and powders to metal melts, a multi-ducted refractory body (11) is installed in the wall (14) of a vessel (15) for the melt. The body has passage closing elements (24, 34, 35) preventing melt entering the passages (A, B, C). Two passages (A and C) serve respectively for introducing gas, and fluidized powders, to the melt: each has a movable pipe (36.91) (for gas or fluidized powder). Upon moving gas pipe (36) towards the melt, it dislodges closing element (24) whereby gas from the pipe can enter the melt via capillary bores (25). Similarly, by moving pipe (91), closing element: when it reaches the closing element (34) the wire can itself dislodge this element to gain access to the melt. A method of introducing substances to liquid related to uses of this apparatus is disclosed, as well as metallurgical processes involving the method.

Apparatus for introducing substances into liquids e.g. metal melts

Metal flow from furnace taphole to a pouring trough is controlled by a valve interposed therebetween, the valve having a stationary orificed valve plate and a companion slide plate for closing or opening the orifice to flow. An actuating beam member forming part of a parallel motion linkage extends upwardly and obliquely from the slide plate, the actuating member being thrust against the slide plate by a swinging spring strut of the linkage. A ram connected to the linkage via a crank, a shaft and a pivoted lever displaces the linkage when extended or contracted and this moves the actuating member along a predetermined path, its oblique attitude being preserved, to open or shut the valve.

Growing community of inventors

Chesterfield, United Kingdom

William A Griffiths