| The suspension entering the headpiece in tangential
direction is subjected to high centrifugal acceleration based
on the hydrocyclone principle.
Under the effect of this, contaminants are flung to the wall
of the separating cone, from where they sink into the reject
lock through an intermediate pipe, followed by the clean suspension
being discharged from the headpiece of the grit separator
in axial direction.
Two looking glasses have been provided in the reject lock
for checking the sinking process. Heavy contaminants, such
as adhering fibrous particles, are removed by the addition
of backflow water to the reject lock.
Adjustable operating cycles of gate valves and reject lock
guarantee high adaptability to any level of contamination
in the suspension.
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