WASTEWATER GRIT WASHER CLASSIFIER FL/CDL SERIES
The wastewater grit washer classifier receives the liquid with grit into the inlet hopper where it is first washed by means of a rotating agitator that causes the liquid to form a rotating vortex, which in turn causes the grit particles to rub against each other, thus removing organic matter that is sticking to the surface of the grit particles. The grit then settles in the bottom of the inlet hopper from where it is removed and transported by means of the inclined screw to the elevated discharge chute into a receiving bin. The dewatering of the grit takes place by gravity in the inclined transport zone before being discharged.
Features:
- Separation of grit from liquid flows with additional organics washing
- Receives settle-able grit in liquids from upstream process
- Solids settle in inlet hopper by gravity and vortex movement created by rotating agitator
- Organic material is removed by vortex movement in the inlet hopper
- Inclined shaft-less or shafted screw transports settled grit to discharge end
- Grit dewaters by gravity in the transport zone
- Dry grit is discharged vertically into receiver bin or conveyor
- Trough wear protected by metal or HDPE liner
Technical specifications:
| Material | 304ss, 316ss |
| Screw | 304ss, 316ss, micro alloy steel |
| Trough protection | 304ss, 316ss wear bars |
| Screw diameter | 240 – 280mm |
| Screw type | shaft-less or shafted |
| Transport length | 4210 – 5260mm |
| Inclination | 40 deg |
| Discharge height | 2300 – 3000 from ground level |
| Flow rate | 30 – 90 m3/h wet solids 2 – 5% DS |
| Grit separation | 95% of particles >200 micron |
| Organics removal | 95% with additional washing |
| Grit extraction | 2000 kg/h at 90% DS |
