Screening Technologies
Screening is a process of separating into groups of different products of various
sizes. Each group consists of products of approximately same size. The mass,
which remains, on a screen is called the oversize of the screen and the material,
which passes through the screen is, called the undersize. The screens in between
the primary and the secondary crusher help in separating the oversize. The
oversize goes to the secondary crusher while the undersize is discharged through
a chute on to the same conveyor belt, which receives the discharge from the
secondary crusher. This saves considerable power in the second crushing stage
and also increases the capacity of the secondary crusher, as it eliminates possible
choking of material in the crusher, particularly during wet weather or wet
material.
Screening is generally classified into two types. (i) Coarse screening, which is
achieved through Grizzlies, Vibratory Screens, Revolving Screens or Shaking
Screens and (ii) fine screening which is achieved through Vibrating screens,
Shaking Screens.
Liming Heavy Industry(Shanghai)’s Vibrating Screen is very popular nowadays. Many clients use it for their mining, quarry and building.