Length, Lift, Power and Cost Characterisation of Troughed Belt Conveyors with Minimum Cord Pitch The length, lift, power and cost characteristics of troughed belt conveyors are dependent on the strength and weight properties of the conveyor belt. The longest and highest lift belt conveyors are of steel cord construction. Cord properties, pitch and diameter are standardised by DIN, ISO, AS and others. Steel cord belts fabricated with minimum cord pitch offer significant length, lift, power and cost advantages. This paper presents for long and high lift troughed belt conveyors with minimum cord gap: - length, lift, power and cost characterisations - comparisons with standard belt constructions

1. Troughed Belt Conveyors
with
Minimum Cord Pitch
John Spreadborough | Principal Engineer - Materials Handling
Conveyors 2014, Brisbane, 23 – 24 Sept 2014

2. Characterisation of Troughed Belt Conveyors
Lift v Length – HLCs, OLCs

3. Characterisation of Troughed Belt Conveyors
Lift v Feed Rate

4. Characterisation of Troughed Belt Conveyors
Length v Feed Rate

5. 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.

6. Characterisation of Troughed Belt Conveyors
Statement
The
highest lift belt conveyors
are of
steel cord construction.

7. Characterisation of Troughed Belt Conveyors
Steel Cord Belt Construction – AS1333

8. Characterisation of Troughed Belt Conveyors
Steel Cord Belt Construction

9. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate – AS1333 Cord Pitch
troughing limit

10. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift/Demand Power v Feed Rate – AS1333 Cord Pitch
troughing limit demand power (MW)

11. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift/Belt Cost v Feed Rate – AS1333 Cord Pitch
troughing limit belt cost ($/m)/100

12. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate – AS1333 Cord Pitch ‐ Basis for Comparison
troughing limit

13. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate – AS1333 Cord Pitch ‐ Basis for Comparison

14. 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

15. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate ‐ Min Cord Gap
troughing limit

16. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift/Demand Power v Feed Rate –Min Cord Gap
troughing limit demand power (MW)

17. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift/Belt Cost v Feed Rate –Min Cord Gap
troughing limit belt cost ($/m)/100

18. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate –Min Cord Gap – Basis for Comparison
troughing limit

19. Characterisation of Troughed Belt Conveyors ‐ HLCs
Lift v Feed Rate –Min Cord Gap ‐ Comparison

20. Characterisation of Troughed Belt Conveyors ‐ OLCs
Statement
The
longest belt conveyors
are of
steel cord construction.

21. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length v Feed Rate – AS1333 Cord Pitch

22. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length/Demand Power v Feed Rate – AS1333 Cord Pitch
demand power (MW)

23. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length/Belt Cost v Feed Rate – AS1333 Cord Pitch
belt cost ($/m)/100

24. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length v Feed Rate – AS1333 Cord Pitch ‐ Basis for Comparison

25. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length v Feed Rate – Basis for Comparison

26. Characterisation of Troughed Belt Conveyors ‐ OLCs
Proposition
Steel cord belts
for
overland conveyors
fabricated with
minimum cord pitch
offer significant
cost and power advantages

27. Characterisation of Troughed Belt Conveyors ‐ OLCs
Lift v Feed Rate ‐ Min Cord Gap

28. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length/Demand Power v Feed Rate –Min Cord Gap
demand power (MW)

29. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length/Belt Cost v Feed Rate –Min Cord Gap
belt cost ($/m)/100

30. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length v Feed Rate –Min Cord Gap – Basis for Comparison

31. Characterisation of Troughed Belt Conveyors ‐ OLCs
Length v Feed Rate –Min Cord Gap ‐ Comparison

32. 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