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


Lift v Feed Rate


Length v Feed Rate


Statement

The length, lift, power and cost characteristics

of

troughed belt conveyors are dependent on

the strength and weight properties of the

conveyor belt.


Statement

The highest lift belt conveyors

are of steel cord construction.


Steel Cord Belt Construction – AS1333


Steel Cord Belt Construction

Characterisation of Troughed Belt Conveyors - HLCs

Lift v Feed Rate – AS1333 Cord Pitch

troughing limit


Lift/Demand Power v Feed Rate – AS1333 Cord Pitch

demand power (MW) troughing limit


Lift/Belt Cost v Feed Rate – AS1333 Cord Pitch

belt cost ($/m)/100 troughing limit


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

troughing limit


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


Proposition

troughing limit

Steel cord belts for

high lift conveyors fabricated with

minimum cord pitch offer significant

cost advantages


Lift v Feed Rate - Min Cord Gap

troughing limit


Lift/Demand Power v Feed Rate – Min Cord Gap

demand power (MW) troughing limit


Lift/Belt Cost v Feed Rate – Min Cord Gap

belt cost ($/m)/100 troughing limit


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

troughing limit


Lift v Feed Rate – Min Cord Gap - Comparison

Characterisation of Troughed Belt Conveyors - OLCs

Statement

The longest belt conveyors

are of steel cord construction.


Length v Feed Rate – AS1333 Cord Pitch


Length/Demand Power v Feed Rate – AS1333 Cord Pitch

demand power (MW)


Length/Belt Cost v Feed Rate – AS1333 Cord Pitch

belt cost ($/m)/100


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


Length v Feed Rate – Basis for Comparison


Proposition

Steel cord belts for

overland conveyors fabricated with

minimum cord pitch offer significant

cost and power advantages


Lift v Feed Rate - Min Cord Gap


Length/Demand Power v Feed Rate – Min Cord Gap

demand power (MW)


Length/Belt Cost v Feed Rate – Min Cord Gap

belt cost ($/m)/100


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


Length v Feed Rate – Min Cord Gap - Comparison


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

john spreadborough - js13 engineering

Engineering