Box
Screens, as depicted above in the computer generated illustration, are
very common to the screening plant industry. There are several
manufacturers offering different variations of a vibrating or shaking
screen deck, mounted on a box shape with a hopper fitted on top.
In
use,
a
load
of
material
to
be screened is placed over the hopper, the load is then
dumped in the hopper and on to the screen deck, usually by jogging the
bucket to spread the material out minimizing momentary overload.
The
fines,
material
that
passes
through
the
screen is collected in the box. The
overs, material that will not pass through the screen is dumped along
the long side of the box.
When
the
load
has
been
dumped,
the
loader goes to fetch another load, repeating the
process until the box is full. Once the box is full, it must be emptied
to proceed with the project.
The
capacity
of
the
screen
deck
is
variable with the size of the deck, usually measured
by length and width. This type of a screening machine is considered by
many to be the simplest and lowest cost of all screening plant
methodologies.
