Patent ID: 6082965
Filing Date: 2000-07-04
Classification: F04D

Abstract:
Apparatus for moving a stream of molten metal in a bath of the molten metal beneath overhead structure, comprising:a pump housing adapted to be disposed in a bath of molten metal below the metal level;leg means disposed between the pump housing and the overhead support structure, comprising:a steel alloy leg having an upper end and a lower end, the leg having a sufficient compressive strength to prevent the pump housing from rising in the molten metal;means for connecting the leg to the overhead support structure;a tubular shield means enclosing at least a portion of the leg, and being formed of a material resistant to the heat of the molten metal; andthe tubular shield means having a lower end attached to the pump housing, and an internal bore having a diameter greater than the diameter of the leg to accommodate the leg's thermal expansion caused by the heat in the molten metal bath.