초록 ▼

A non-metallic pump for pumping molten metal includes a motor, a shaft having one end connected to the motor and an impeller connected to the other end of the shaft. A base has a chamber in which the impeller is rotatable. Structure is used to removably insert the base into a bath of molten metal. T

A non-metallic pump for pumping molten metal includes a motor, a shaft having one end connected to the motor and an impeller connected to the other end of the shaft. A base has a chamber in which the impeller is rotatable. Structure is used to removably insert the base into a bath of molten metal. The impeller includes stirrer openings which are configured and arranged to enable the impeller to cause solid matter in the molten metal to move toward an upper surface of the bath.

대표청구항 ▼

[ What is claimed is:] [1.] In a non-metallic pump for pumping molten metal including a motor, a shaft having one end connected to the motor and extending along a longitudinal axis, an impeller connected to the other end of the shaft, a base having a chamber in which the impeller is rotatable, an in

[ What is claimed is:] [1.] In a non-metallic pump for pumping molten metal including a motor, a shaft having one end connected to the motor and extending along a longitudinal axis, an impeller connected to the other end of the shaft, a base having a chamber in which the impeller is rotatable, an inlet opening through which molten metal can enter the base, a base opening in one of an upper and lower portion of said base and an outlet opening through which molten metal can leave the base, and structure for removably inserting the base into a bath of molten metal, the improvement wherein the impeller is made of a non-rnetallic, heat resistant material, and comprises a generally circular base portion at one end of the impeller having surfaces that extend generally transverse to the longitudinal axis, wherein said base portion is disposed so as to obstruct said base opening, an end face spaced apart from said one end along the longitudinal axis, vanes extending outwardly from said base portion and along said longitudinal axis between said end face and said base portion, and impeller openings circumferentially spaced apart from each other between the surfaces of said base portion.