Screw grit classifier

ESN

CATEGORY POTABLE WATER
TYPOLOGY GRIT REMOVAL UNIT


The screw grit classifier is installed on medium and large wastewater treatment plants, generally downstream of the grit removers in order to obtain the washing and the following water reduction of the grit.


It is composed of: a purpose-designed metal tank;a shaftless screw conveyor;a canal made of wearproof replaceable material suitable for collecting and conveying to grit;a drive unit, a washing system and a grit discharge hopper.


The grit settled on the tank bottom is collected, lifted by the screw conveyor and then discharged. The screw diameter and consequently the classifier model, vary according to the inlet flow rate to be treated. The drive unit is a gear-motor directly fitted on the same axis as the screw. The competitive advantages of this equipment consist in the good performances and its extreme constructional and operation simplicity. The classifier is complete with adequate supports and anchor bolts to ensure the good stability. The protection against overloads is ensured by an electronic load limiting devices.

STRENGTHS

MAXIMUM EFFICIENCY IN GRIT-WATER SEPARATION

CLOSED UNIT

REDUCED ENERGY CONSUMPTION

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