The headworks is where a treatment plant meets everything the collection system sends it: sand, gravel, rags, plastics, and debris. Grit and screenings service is short-distance work, but it’s the most abrasive, most corrosive duty in the plant, and equipment specified like a general-purpose conveyor rarely lasts.
What Makes Headworks Service Different
Grit is essentially wet sandblasting media. It works its way into moving parts, embeds in belt surfaces, and grinds away trough liners and chute work. Screenings add stringy material that wraps rotating components and inconsistent moisture that swings between drippy and compacted. On top of both: hydrogen sulfide exposure, which attacks unprotected carbon steel and standard electrical components.
Design Features That Survive
- Materials of construction: stainless steel contact surfaces and frames, or coatings specified for H2S environments — corrosion allowance is not a substitute
- Belt selection over bare metal contact: carrying material on a belt rather than dragging it across steel dramatically reduces abrasive wear on the structure
- Containment: covered or enclosed runs keep odor in and washdown water where it belongs; drip pans under return runs keep walkways safe
- Accessible cleanout: headworks conveyors get hosed down constantly — design for it with washdown-rated components and drainage
- Minimal transfer points: every transfer is a spill point, and spilled grit becomes a housekeeping and safety issue immediately
Routing From Headworks to Dumpster or Truck
Screenings and grit typically need to travel from a screen or classifier discharge — often at an awkward height in a tight gallery — to a container outside. That path is rarely straight. The Pathwinder conveyor handles this profile well: one continuous machine that turns out of the gallery, climbs to clear a wall or door, and discharges into the container, with no intermediate transfers to spill grit along the way.
For facilities distributing grit and screenings across multiple containers, the Flight Distribution conveyor eliminates the shuffle of repositioning dumpsters under a fixed discharge.
Specify for the Duty, Not the Distance
Because headworks runs are short, they’re tempting places to save money. The service duty argues otherwise — this is where cheap equipment goes to fail. Serpentix builds conveyors for grit and screenings duty with materials and details matched to the environment, and our engineering team will review your headworks layout through our free engineering review before you commit to a configuration.
