PUMP FOR DELIVERING FLUX TO MOLTEN METAL THROUGH A SHAFT SLEEVE

摘要

A pump for pumping molten metal and delivering flux includes a refractory base that can be submerged in molten metal including an impeller chamber, an inlet and an outlet. A refractory shaft sleeve has upper and lower end portions and is fastened to the base at the lower end portion. A motor is disposed near the upper end portion of the shaft sleeve. A refractory shaft extends in the shaft sleeve and is connected to the motor near the upper end portion of the shaft sleeve. A refractory impeller is connected to the shaft and is rotatable in the impeller chamber. A flux feeding device feeds flux into the shaft sleeve. Also featured is a method for delivering flux in the shaft sleeve of the pump and a method for cleaning flux accretions in the shaft sleeve.

主权项

1. A pump for pumping molten metal and delivering flux comprising:
a refractory base that can be submerged in molten metal including an impeller chamber, an inlet and an outlet; a refractory shaft sleeve having upper and lower end portions and being fastened to said base at the lower end portion; a motor disposed near the upper end portion of said shaft sleeve; a refractory shaft extending in said shaft sleeve and connected to said motor near the upper end portion of said shaft sleeve; a refractory impeller connected to said shaft and rotatable in said impeller chamber of said base; and a flux feeding device that feeds flux into said shaft sleeve.