Specially designed for static flume applications, the new Cutter
screen panel is particularly effective for dewatering and heavy
media recovery.
Cutter panels have great impact resistant capabilities
and are installed slot against flow with a cutting edge
higher on the feed side and lower on the discharge side
to funnel water down and into the apertures.
Cutter panels are available in a 12” x 12” size with either
4-pin or 4-snap fastening options.
Call us at
1-864-579-4594
or visit
polydeckscreen.com/coal
to find the Polydeck Regional Manager in your area.
the cake, the more rapid cake
formation.
n
n
Faster opening and closing:
discharging cakes and resetting
the press for the next fill stage can
play a big role in press capacity
on a tonnes per hour basis.
Once again, testing of the material
is always a good place to start when
looking at recessed plate filter presses.
Most manufacturers have facilities for
in-house testing to determine filtration
times and moistures as a function of
feed solids concentration and cake
width.
Filter presses are frequently
categorised into two main styles each
with their own advantages and
disadvantages:
n
n
Overhead beam: Denoting a press
in which the filter plates hang
from overhead beams
§
§
No parts on the sides of the
press, providing unobstructed
access to change filter cloths
on the press without plate
removal.
§
§
Much wider plate openings
often exceeding 3 ft (0 .9 m)
between the plates, creating
more movement to aid cake
release, while also allowing
easier access for cloth washing
and inspection.
§
§
Dynamic loads are typically
isolated from the beams of the
press using tension shafts in
various configurations.
n
n
Side beam: denoting a press
in which the filter plates are
supported by beams running
along the side of the press.
§
§
Easier to implement shaking
systems for applications
requiring shaking systems.
§
§
Lower upfront cost.
§
§
Less access to plates for cloth
washing and inspection.
§
§
Automatic wash systems should
be considered more heavily
with side beam style presses
due to limited plate access.
Summary
Tailings management is an extremely
important piece of coal processing.
Although not always thought of as the
most exciting part of the planning, a
well thought out tailings management
plan can lead to higher coal recovery,
reusable water, better access to
resources and higher ROI. Thickeners
are the start of the tailings management
process and can be selected in a variety
of styles. Each style has similarities, but
produces a different style of tailings.
Thickeners can also be followed by
recessed plate filter presses, which can
help sites completely eliminate ponds
and impoundment structures
altogether. Producers should make sure
to contact a manufacturer that is
knowledgeable in testing and verifying
results to ensure tailings management
solutions fit the needs of their coal
processing facility.
