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INTRODUCTION
THE MINERAL EXTRACTION PROCESS IS PREDOMINANTLY:
SOLIDS HYDRAULIC TRANSPORT
( SLURRY FLOW & PUMPING )
SLURRY PUMP & PIPELINE OPTIMIZATION:
• REDUCES OPERATING COST
• REDUCES DOWNTIME
• REDUCES MAINTENANCE COST
•REDUCES LABOUR
MINIMIZES TOTAL COST OF OWNERSHIP
SLURRY PUMP & PIPELINEOPTIMIZATION ALSO:
• REDUCES ENERGY CONSUMPTION
• REDUCES MATERIAL CONSUMPTION
•REDUCES ENVIRONMENTAL IMPACT
ALLOWS FOR ENERGY REDUCTION REBATES
INCREASES PROFITS
SOLID ADVANTAGE BACKGROUND:
• GIW Slurry course 2002 & 2011
• 10 years independent research
• 23 years in operating mine
• work closely with consulting engineers and pump manufacturers
• extensive design, construction, operation, maintenance and troubleshooting experience
•environmental custodian
SLURRY TRANSPORT ANALYSIS
Carrier fluid properties database
Carrier fluid properties
used in analysis
CARRIER FLUID
Pipe properties
database
Pipe properties used in analysis – pipe liner thickness added here
HDPE pipe shown
PIPE PROPERTIES
Open channel roughness
Pipe roughness used in analysis
Pipe roughness
PIPE ROUGHNESS
Channel roughness used
in analysis
Minor losses are based on Darby
3-K method
Crane L/D values are used where Darby 3-K
factors are not available.
PIPE MINOR LOSSES
Total minor losses used in
analysis
Plitt’s equation is used to calculate particle size
distribution when gradation data is not available
Particle size distribution values passed to analysis
SOLIDS GRADATION DETERMINATION
Fluid hydraulic gradient chart
Solids particle and carrier fluid input
Slurry hydraulic
gradient chart
Critical velocity analysis is based on the average or any combination of
three well recognized methods Modified Durand, Wilson & MTI
Holland
Hydraulic gradient analysis calculated on clean pipe or combination of clean
pipe and bed if present.
SLURRY CRITICAL VELOCITY & FRICTION
Critical velocity analysis considers horizontal,
sloped and vertical pipe configurations.
Pump NPSHA results
Pipeline length, elevations, and inlet and
outlet pressure inputs
Pipeline section head gain or loss results
Power & energy results
Bed formation calculation
results
Pumpbox vortex creation level
check
PIPE ALIGNMENT & FLOW
Calculation result summary for individual pipeline sections and
entire pipeline
Calculation results for each pipe section
PIPELINE RESULTS
Graf-Acaroglu formula used to calculate the bottom
slope to avoid bed formation
Manning formula used to calculate the flow x-
section area and surface slope
OPEN CHANNEL FLOW
SLURRY REPORT
Energy & cost factors
Carrier fluid properties
Solids & slurry properties
Critical Velocity output & selection
FLUID & SLURRY PROPERTIES
Analysis details
K-Values per fitting type, fitting quantity and total K-Value
MINOR LOSSES
Analysis details
Energy & cost output
Pipe data
Full pipe flow conditions
Pipe section head conditions
Resultant flow conditions
INDIVIDUAL PIPE SECTION
Analysis details
PIPELINE SUMMARY
Pipeline Energy & cost output
Pipeline flow conditions
Pipeline head conditions
Analysis details
Pipeline length
PUMP SELECTION
Capital, maintenance &
power cost input
Selected pumps operating conditions
Pipeline, solids & slurry input
Selected pumps TCO comparison &
ranking
Selected pumps performance & wear
life comparison
Typical pumps capital & maintenance cost data
PUMP OPERATION & WEAR LIFE CALCULATION
Pump selection criteria
Pump operating conditionsselection criteria
Pipeline, solids & slurry results
Selected pumps TCO
comparison and ranking
Selected pumps performance &
wear life comparison
PUMP OPERATION & WEAR LIFE REPORT