PURPOSE: To effectively utilize the volume of a refining vessel while shortening a time for refining, by forming the cooling system of the titled apparatus for refining liquid metal into a plurality of independent cooling systems having different distances from the passageway of the liquid metal inside the main body of said refining vessel.
CONSTITUTION: A coolant is supplied through an inflow pipe 9 to a jacket 11 surrounding the outer surface of the main body 1 of a tubular refining vessel and discharged through an outflow pipe 10. A plurality of independent coil- shaped cooling systems I WIV having different coil sizes are provided coaxially with the main body 1 inside a plenum 20 at the lower part of the refining vessel 1, so that the coolant is introduced from inlet vessel 14 through inflow pipes 15 and discharged through coil-shaped cooling pipes 16 and then outflow pipes 17. Liquid metal (e.g. Na) is introduced through the inflow nozzles 14 into an inner space 13, let flow to the plenum 20 at the lower part, refined in the cooling systems I WIV while precipitately caking impurities therein, raised inside the inner tube 12 of the vessel and then withdrawn through an outflow nozzle 8 at the top part. Thus, the blockade of the passageway of the liquid metal is made hard to form.
UEDA MITSUO
MAITA YASUSHI
ABE YOSHITO
| JPS5134809A | 1976-03-24 |