Abstract: A burner housing, comprising: an internal cartridge housed in an external housing; wherein the internal cartridge defines a plurality of ports selected from the group consisting of: an inlet cooling fluid port, an outlet cooling fluid port; a burner port; particle injection port; a cooling fluid circuit defined by and/or disposed in the internal cartridge and/or the external housing; and wherein the internal cartridge is made of a first material and the external housing is made from a second material.

Abstract: A fluid assisted particle injector for a metallurgical furnace, comprising: an injector tube having an entrance end, an exit end and a removable tip; a cover tube disposed over the injector tube; a fluid and particle injector port in line with the longitudinal center axis of the injector tube and a secondary fluid port for directing pressurized fluid over the outside of the injector tube and within the cover tube; the injector tube defining a tapered internal bore having a particle entrance end and a particle exit end, wherein the diameter of the particle exit end is smaller than the diameter of the particle entrance end.

Abstract: A fluid assisted particle injector for a metallurgical furnace, comprising: an injector tube having an entrance end, an exit end and a removable tip; a cover tube disposed over the injector tube; a fluid and particle injector port in line with the longitudinal center axis of the injector tube and a secondary fluid port for directing pressurized fluid over the outside of the injector tube and within the cover tube; the injector tube defining a tapered internal bore having a particle entrance end and a particle exit end, wherein the diameter of the particle exit end is smaller than the diameter of the particle entrance end.

Abstract: A burner housing, comprising: an internal cartridge housed in an external housing; wherein the internal cartridge defines a plurality of ports selected from the group consisting of: an inlet cooling fluid port, an outlet cooling fluid port; a burner port; particle injection port; a cooling fluid circuit defined by and/or disposed in the internal cartridge and/or the external housing; and wherein the internal cartridge is made of a first material and the external housing is made from a second material.

Abstract: A modular furnace cooling wall, comprising: a plurality of segments wherein each interior segment houses or defines a cooling fluid conduit having an inlet and an outlet; wherein a first side of each segment defines a concave groove or channel; wherein a second side of each segment defines a convex edge; and wherein the plurality of segments are assembled so that the convex edge of one or more of the segments is received within the concave groove of an adjacent segment.