Abstract: A wear-levelling apparatus (124) for a cyclone (100) includes: an upper section (128) defining an upper portion of a frusto-conical channel configured to receive material for delivery to a lower portion of the channel; a bearing assembly connected to the upper section; and a lower section (132) coupled to the upper section by the bearing assembly to permit rotation of the lower section about an axis of the channel; the lower section defining a lower portion of the channel configured to receive the material from the upper portion for discharge toward an outlet (120) of the cyclone.

Abstract: A wear-levelling apparatus (124) for a cyclone (100) includes: an upper section (128) defining an upper portion of a frusto-conical channel configured to receive material for delivery to a lower portion of the channel; a bearing assembly connected to the upper section; and a lower section (132) coupled to the upper section by the bearing assembly to permit rotation of the lower section about an axis of the channel; the lower section defining a lower portion of the channel configured to receive the material from the upper portion for discharge toward an outlet (120) of the cyclone.

Abstract: A cement for vessels for containing molten alloys of aluminum with metals selected from the group consisting of lithium, magnesium, zinc and copper is shown that forms a hard sintered crust for containing the molten alloy in the vessel with a backing of granular cement for controlling thermal stress while also providing a vitrifying flux means in the cement mix for effecting a sealing of any cracks that may form in the crust by reacting with any hot alloy flowing through such a crack to contain the leak as a metal spur.

Abstract: A refractory ramming mix for forming linings for containers of molten metal contains graded refractory grains size to minimize porosity, optional sintering aids or fluxes, and aluminum powder in the amount of 1 to 15% by volume.