Conveyors — Solids Handling

Belt conveyors, screw conveyors, and shaftless systems for moving biosolids, screenings, grit, and bulk materials through treatment facilities.

What is a Solids Conveying System?

Treatment plants generate a constant flow of solids that must move — dewatered biosolids cake from presses to loading areas, screenings from the headworks to dumpsters, grit from classifiers to containers, and lime or other bulk chemicals into feed systems. The right conveying system matches the material characteristics (sticky, stringy, abrasive, odorous), transport distance, elevation change, and facility layout. The wrong choice means plugged equipment, maintenance headaches, and operational disruptions.

Equipment We Represent

Keystone Conveyor — Complete Conveying Solutions

Custom-designed conveying systems for treatment plant applications
Belt conveyors: side wall, troughed, slider bed, shuttle, pivoting, and stack-out configurations
Screw conveyors: including shaftless designs for sticky and stringy materials
Belt elevators for vertical transport
Lime feed and mix systems for chemical addition
Bag feed systems for chemical handling
Dust collection equipment for dry material handling

WTP Equipment — Shaftless Screw Conveyors

Enclosed conveying systems with no internal shafts or bearings — eliminates wrapping and plugging from stringy materials
Handles: wastewater screenings, dewatered sludge, grit, food processing waste, and pulp and paper waste
Standard designs and custom layouts available to fit facility geometry

DryCake — Orgaspiral Screw Conveyor

Shaftless screw conveyor for transferring screenings, grit, and organic solids
Designed to feed downstream units such as grit/solids removal systems
Enclosed design contains odor and simplifies material handling

Applications

Biosolids Cake Transport
Moving dewatered cake from press discharge to trailer, dumpster, or storage

Screenings Conveying
Shaftless screw conveyors for rag-heavy headworks screenings

Grit Transport
Moving classified grit from classifier discharge to container

Lime and Chemical Feed
Keystone lime feed and mix systems for pH adjustment and biosolids treatment

Industrial Waste Handling
Food processing, pulp and paper, and industrial material conveying

Custom Facility Layouts
Shuttle, pivoting, and stack-out belt conveyors for complex routing requirements

Why Winschel Environmental?

Belt and screw both covered — Keystone handles complex belt conveyor systems; WTP handles stringy-material shaftless screw applications
Custom engineering — Keystone builds to your specific routing, elevation, and capacity requirements
Shaftless reliability — WTP shaftless conveyors eliminate plugging in the most difficult solids streams
Chemical feed included — Keystone lime and bag feed systems for facilities adding chemical treatment
Virginia coverage — local support for sizing, startup, and service