john spreadborough - js13 engineering

Troughed Belt Conveyors

with

Minimum Cord Pitch

John Spreadborough | Principal Engineer - Materials Handling

Conveyors 2014, Brisbane, 23 – 24 Sept 2014

Characterisation of Troughed Belt Conveyors

Lift v Length – HLCs, OLCs

Characterisation of Troughed Belt Conveyors

Lift v Feed Rate

Characterisation of Troughed Belt Conveyors

Length v Feed Rate

Characterisation of Troughed Belt Conveyors

Statement

The length, lift, power and cost characteristics

of

troughed belt conveyors are dependent on

the strength and weight properties of the

conveyor belt.

Characterisation of Troughed Belt Conveyors

Statement

The highest lift belt conveyors

are of steel cord construction.

Characterisation of Troughed Belt Conveyors

Steel Cord Belt Construction – AS1333

Characterisation of Troughed Belt Conveyors

Steel Cord Belt Construction

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – AS1333 Cord Pitch

troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift/Demand Power v Feed Rate – AS1333 Cord Pitch

demand power (MW) troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift/Belt Cost v Feed Rate – AS1333 Cord Pitch

belt cost ($/m)/100 troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – AS1333 Cord Pitch - Basis for Comparison

troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – AS1333 Cord Pitch - Basis for Comparison

Characterisation of Troughed Belt Conveyors - HLCs

Proposition

troughing limit

Steel cord belts for

high lift conveyors fabricated with

minimum cord pitch offer significant

cost advantages

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate - Min Cord Gap

troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift/Demand Power v Feed Rate – Min Cord Gap

demand power (MW) troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift/Belt Cost v Feed Rate – Min Cord Gap

belt cost ($/m)/100 troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – Min Cord Gap – Basis for Comparison

troughing limit

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – Min Cord Gap - Comparison

Characterisation of Troughed Belt Conveyors - OLCs

Statement

The longest belt conveyors

are of steel cord construction.

Characterisation of Troughed Belt Conveyors - OLCs

Length v Feed Rate – AS1333 Cord Pitch

Characterisation of Troughed Belt Conveyors - OLCs

Length/Demand Power v Feed Rate – AS1333 Cord Pitch

demand power (MW)

Characterisation of Troughed Belt Conveyors - OLCs

Length/Belt Cost v Feed Rate – AS1333 Cord Pitch

belt cost ($/m)/100

Characterisation of Troughed Belt Conveyors - OLCs

Length v Feed Rate – AS1333 Cord Pitch - Basis for Comparison

Characterisation of Troughed Belt Conveyors - OLCs

Length v Feed Rate – Basis for Comparison

Characterisation of Troughed Belt Conveyors - OLCs

Proposition

Steel cord belts for

overland conveyors fabricated with

minimum cord pitch offer significant

cost and power advantages

Characterisation of Troughed Belt Conveyors - OLCs

Lift v Feed Rate - Min Cord Gap

Characterisation of Troughed Belt Conveyors - OLCs

Length/Demand Power v Feed Rate – Min Cord Gap

demand power (MW)

Characterisation of Troughed Belt Conveyors - OLCs

Length/Belt Cost v Feed Rate – Min Cord Gap

belt cost ($/m)/100

Characterisation of Troughed Belt Conveyors - OLCs

Length v Feed Rate – Min Cord Gap – Basis for Comparison

Characterisation of Troughed Belt Conveyors - OLCs

Length v Feed Rate – Min Cord Gap - Comparison

Characterisation of Troughed Belt Conveyors

Highlights – Min Cord Gap cf AS1333 Cord Pitch

for HLC, hard rock, 10000 t/h, 2000 m lift, 1 stream, 5 flights:

- belt cost: -23% 2200 ST6300 ST6300CG4

- demand power: -1% 64.9 63.9 MW

for OLC, coal, 16000 t/h, 60 km length, 1 stream, 5 flights:

- belt cost: -22% 2800 ST3150 ST2800CG4

- demand power: -6% 41.7 38.9 MW