Which of the following is the most suitable for cleaning of fine coal dust
(<0.5 mm)?
(A) Trough washer
(B) Baum jig washer
(C) Spiral separator
(D) Froth floatation
(<0.5 mm)?
(A) Trough washer
(B) Baum jig washer
(C) Spiral separator
(D) Froth floatation