CENTRIFUGAL BACK-EXTRACTING APPARATUS AND SCANDIUM BACK-EXTRACTING METHOD

摘要

A centrifugal back-extracting apparatus and a scandium back-extracting method. The centrifugal back-extracting apparatus comprises: an outer shell (10), the outer shell (10) comprising a raw material inlet (11); an inner shell (20), the inner shell (20) being provided inside the outer shell (10), a gap being formed between the outer shell (10) and the inner shell (20), a material channel being provided at the bottom of the outer shell (10) and the bottom of the inner shell (20) to enable the material in the gap to enter the inner shell (20), a finished product channel (21) being provided at the bottom of the inner shell (20), the finished product channel (21) extending through the outer shell (10) to the exterior of the outer shell (10), a first discharge channel and a second discharge channel being provided at the upper part of the inner shell (20), and the first discharge channel being closer to one side of the inner shell than the second discharge channel; and a rotary shaft (30), the rotary shaft (30) being mounted on the outer shell (10) and located inside the inner shell (20), so that the rotary shaft (30) generates, when rotating, a centrifugal force to drive material to be separated and discharged respectively from the first discharge channel and the second discharge channel.