The Pro-Equipment Grit-Guard provides a cost effective means for washing, dewatering and conveying separated grit or sand from wastewater. This rugged Headwork’s Classifier offers two model types.
Grit-Guards standard Grit Washing Classifier comprised of a collection tank and a motor driven inclined screw conveyor. The tank walls are uniquely shaped and engineered to accommodate the conveying trough.
Carbons all the features and grit handling capabilities as the Model-SP, plus has an additional washing agitator for applications that require additional grit washing.
When installed near a grit chamber, both Grit-Guard models return separated water back into the grit chamber. Water, free from sediments, but containing some organics, is streamed through an overflow trough were a connecting pipeline transfers it to the next treatment process stage.
The Stainless Steel Grit-Guard models are manufactured to deliver long service life in either indoor or outdoor locations. When installed outdoors, the Grit-Guard can be equipped with both insulation and an electrical heater to hold-up to harsh, inclement weather. An open-air thermostat is also available to operate the heating element during the winter season.
Grit is agitated, washed and conveyed up an inclined open trough by a Helix Screw that’s powered by an electric gear motor. The spiral rotating Helix Screw efficiently moves separated materials up the trough where it is discharged through a top chute falling into a receptacle for final disposal.