Technological Resources Pty. Limited

Allegheny Ludlum Corporation

Berry Metal Company

Technology Resources Pty. Limited

George Cingle, Iii

Todd G Smith

Eric P Tierney

Derek Dengel

Nicholas M Rymarchyk, Jr

Michael T Mattich

Michael Mattich

Todd Smith

An apparatus for injecting particulate and/or gaseous material into a metallurgical vessel for use in a metallurgical process includes a duct to inject the material. The duct includes a duct wall of concentric annular passages for inflow of cooling water from a rear end to a forward end of the duct along a first of the annular passages and for outflow of cooling water from the forward end to the rear end of the duct wall along a second of the annular passages. The concentric annular passages are provided by concentric sleeves that consist of an inner sleeve, an outer sleeve, and an intermediate sleeve. The apparatus also includes a duct tip at a forward end of the duct joining at least the inner and outer sleeves so as to provide a water flow connection between the first and second water flow passages.

Apparatus for injecting gas into a vessel

An apparatus for injecting gas into a metallurgical vessel is disclosed. The apparatus comprises a gas flow duct, an elongate central tubular structure extending within the gas flow duct, a plurality of flow directing swirl vanes, inflow and outflow cooling water passages within the central structure, and a nose portion provided with one or more water cooling passages. The flow directing vanes are provided with internal water cooling vane passages. In use, water flow is communicated through the vane passages from the water inflow passage in the central structure to the water flow passage in the nose portion of the central structure such that at least some of the inflowing water will pass successively through the vane passages and the nose passage or passages and thence to the outflow passage.

An apparatus for injecting gas into a metallurgical vessel supporting a metallurgical process is disclosed. The apparatus includes a gas flow duct, an elongate central structure extending within the gas flow duct, and a plurality of flow directing swirl vanes disposed about the central tubular structure adjacent the forward end of the duct. The flow directing vanes are formed with internal water flow passages for flow of cooling water internally along each vane. The elongate central structure is formed with a cooling water supply passage for supply of cooling water to the internal water flow passages in the vanes and a water return passage for outflow of cooling water which has passed through the internal water flow passages in the vanes.

Inducing swirl in a gas flow

An apparatus for injecting particulate and/or gaseous material into a metallurgical vessel is disclosed. The apparatus includes a duct through which to inject the material, inner and outer water inflow and outflow passages extending through a wall of the duct and an annular duct tip disposed at the forward end of the duct. The duct tip is of annular formation and includes an annular inner end component, an annular outer end component, and an annular central component located between the inner and outer components. The duct tip also includes a plurality of radially extending dividers to divide a space between the outer end component and the central component into discrete radial passages to serve as the internal water flow passages of the tip.

An apparatus for injecting gas into a metallurgical vessel is disclosed. The apparatus includes a gas flow duct, an elongate central tubular structure extending within the gas flow duct, a plurality of flow directing swirl vanes disposed about the central tubular structure, and cooling water passages within the central tubular structure. The forward end of the central structure has a nose portion that includes a domed outer shell, an inner component disposed within the outer shell and formed with an internal nozzle to receive water from the cooling water passages and to direct that water in a jet against the inner surface of the outer shell to produce an outwardly and backwardly fanning flow of water around the inner surface of the outer shell.

A fully automated system and method for rapidly and reliably detecting the ingestion of slag within the tip of a metal making lance. The system utilizes a temperature sensor disposed adjacent to the inner surface of the inner wall of a metal making lance tip. The sensor is in communication with a control station. The control station is preferably in operative communication with a valve for shutting off gas flow to the lance and, optionally, at least one alarm, a coolant fluid shut-off valve, and any other lance operation mechanisms as may be desired or necessary when slag is detected by the sensor. The inner wall of the lance tip is also preferably formed with a slag collecting reservoir for collecting ingested slag and directing it toward the temperature sensor for quick and reliable slag detection.

Metal making lance slag detection system

A tuyere block assembly design permitting intermittent flow of gas into the bottom of a metallurgical vessel is provided having the tuyere block assembly open to permit flow of gas into the vessel and closes when the flow of gas into the furnace is not desired without the requirement that gas be continuously injected through the tuyere block in order to keep the block open and operational.

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Gibsonia, PA, United States of America

George Cingle, Iii