Filter Press Operation and Features
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Filter Presses in principal are pressure
filters in where a filters pack comprising of
a series of plates and frames or chamber
plates in compressed between one fixed and one
movable bulk head on the other end. The filter
media is placed between each individual
element.
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A pair of filter plates when closed form a
cavity internally covered on all both sides by
the filtering medium. Slurry with uniform
distribution of finely dispersed solids in
liquid is introduced under pressure in this
cavity. Liquid passes out and solids with
remaining discharged through a closed pipe
formed in the plates or is passed out into
open channel through externally mounted cocks.
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Once the filter cake is fully pressed and
filtrate trickles out, the cake can be washed
to remove any impurities and the cake can be
further dried. Thus solid-liquid separation of
a slurry is achieved leaving a filter cake in
the cavity are directed through specially
devised nozzles fitted in the fixed end.
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Cake which has built in the hollow space
between the plates will fall our once the pack
is opened.
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Closing Device
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Dinshaw offers two types of closing devices.
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Cake Discharge / Shifters
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There are 3 types of Cake Discharge mechanisms
available with Filter Presses:
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Manual Cake discharge (usually in small
presses)
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Reciprocating Shuttle type Shifter.
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Shaking Mechanism
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