The pyramid hopper is the standard design for most applications. This configuration is often required when the system requires chemical treatment and flocculated solids are present.
Sludge pumps, sample ports, and auxiliary piping and instrumentation can be provided as required.
A drag conveyor is best applied with heavy solids that compact easily and are able to be dragged. The slope provides preliminary dewatering.
Examples include glass cullet, coal, grit, dense ash, and others.
A screw conveyor is selected for sticky and viscous solids, and when agitation is required to prevent hardening or excessive compaction.
Screw conveyors can handle both heavy and light solids at a wide variety of concentrations.