Half the angle of nip, (α), for a roll crusher is given by
(where, dr, dp and df are diameters of crushing rolls, feed particles and rolls
gap respectively).
(A) cos α = (dr + dp)/(dr + df)
(B) cos α = (dr + df)/(dr + dp)
(C) tan α = (dr + dp)/(dr + df)
(D) sin α = (dr + dp)/(dr + df)
(where, dr, dp and df are diameters of crushing rolls, feed particles and rolls
gap respectively).
(A) cos α = (dr + dp)/(dr + df)
(B) cos α = (dr + df)/(dr + dp)
(C) tan α = (dr + dp)/(dr + df)
(D) sin α = (dr + dp)/(dr + df)