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Application · A03

Chutes, hoppers & silos

Bulk materials slide and fall through transfer chutes, hoppers and silo cones. Where material slides, alumina tiles carry the wear; where lumps strike, rubber-ceramic panels absorb the impact; on vertical and overhead faces, weld-on tiles stay put.

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Lined transfer chuteimpact zone
FIG. — Lined transfer chute with impact zone. Schematic.

Match the lining to the zone

One chute often needs two or three linings. Map where material strikes and where it slides, then line each zone for its own wear mode.

Match the lining to the zone
ZoneWear modeUsually fits
Impact point under a dischargeImpact + abrasionRubber-ceramic panels
Chute bed and walls downstreamSliding abrasionPlain or weld-on tiles
Vertical walls and overhead facesSliding; risk of tiles detachingWeld-on tiles
Hopper and silo conesSliding abrasionTiles; shaped tiles at transitions
Large-diameter silo wallsSliding abrasionFlat tiles — the curvature is small enough to fit flat
Section through a steel-backed rubber-ceramic wear panelIMPACT + ABRASIONALUMINA CYLINDERS OR TILESRUBBER, VULCANISEDSTEELBACKINGSTUDS FOR BOLTING
FIG. — Rubber-ceramic panel for the impact zone. Schematic.

Large silos

On silos more than about ten metres in diameter the wall curvature is slight, and flat tiles can be fitted directly without shaped pieces. Cones and transitions still need cut or shaped tiles.

What to send us

  • GeometryDrawing or photos with dimensions; where material enters and leaves
  • MaterialType, largest lump, moisture, throughput
  • ImpactDrop height at the impact point
  • TemperatureMaximum and normal
  • HistoryCurrent lining and where it wears through

Questions

Can we line only the worst areas?

Yes. Lining the impact point and the most worn sections first is common. Photos of the worn chute usually show where to start.

Bonded or welded tiles in a chute?

Bonded tiles work on beds and inclined faces at ambient temperature. On vertical walls, overhead faces and anywhere with vibration or heat, weld-on tiles are safer because they cannot slide off if the adhesive weakens.

Send the duty conditions.

We recommend the lining, state where it stops working, and quote once the parameters are confirmed.

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