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