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Institute of Quarrying Australia Crushing Concepts Powerscreen Moira Brady – Crushing & Screening
Institute of Quarrying Australia
Crushing Concepts
PowerscreenMoira Brady – Crushing & Screening
Powerscreen® Training Academy
Project Evaluation
Project Evaluation
• Plant Selection Criteria
• Applications Questionnaire
• Tonnage Calculation (Aggflow)
• Technical Layout Drawing (Visio)
• Cost Calculator
• Carbon Footprint
Plant Analysis
Technical Layouts
Technical / Environmental Analysis
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Mobile & Static Plant
• Extensive civil work• Untested and often complicated design• Long commissioning / safety issue• Material has to be moved to the plant• Inflexible design• Expensive to relocate• Dead costs• High depreciation
Stationary Plant
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Mobile Plant
• Simple to visualize and adapt• Proven design• Crushing can begin within 1 hour
of arrival upon site• Move crusher to material• Flexible• Easy to relocate• Higher residual value• No dead costs• Feed and operate with minimal operators• Easily transportable
Mobile Plant
• Urban Spread and the need for expansion or green field permits
• Life Span of a raw feed• Environmental, for example exhaust
emissions, noise and dust levels that may dictate working hours
• Country Stability (when moving into new areas)
• End user Aggregate pricing• Aggregate specifications• Recycling legislations• Operator capabilities
Factors for Mobile Plant
• Flexibility• Transportability• Rental• Leasing• Low Maintenance• Fixed Volume processing (Contractors)• Residual Value
It is much more cost effective & a time saver, to m ove the mobile crushers to the rock face than haul the
material to the crushing plant
Mobile Concepts – The Benefits
Mobile Plant Applications
Coals, Ores, Slag Industry
Recycling, Urbanisation
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Crusher Plant Technology
1100 x 800 PREMIERTRAK - FEATURES
Hopper Locking Interface
• Fully hydraulic hopper
• Hydraulic ram interlocking
operated from ground level
• Additional manual wedges
not required
1100 x 800 PREMIERTRAK - FEATURES
Feeder Options
Grizzly Feeder
Pan FeederPre Screen
Belt Feeder
1100 x 800 PREMIERTRAK - FEATURES
Feeder Options• Effective removal of fines
• High efficiency
• Higher production
• Less wear
• Cleaner product
Grizzly Feeder
Pan FeederPre Screen
1100 x 800 PREMIERTRAK - FEATURES
Pre Screen Options
1100 x 800 PREMIERTRAK - FEATURES• Hydraulic folding
• Universal mounting
• Machine mountable – no need to
dismount for transport
• Extended versions
• Telescopic head section
Dirt Conveyor
1100 x 800 PREMIERTRAK - FEATURES
Product Conveyor
• Hydraulic raise & lower whilst crushing
• Modular units
• Excellent clearance
1100 x 800 PREMIERTRAK - FEATURES
Product Conveyor• Vibrating pan feeder and
product conveyor
• Full length product conveyor
• Extended full length conveyors
• Folding head drum section
1100 x 800 PREMIERTRAK - FEATURES
Jaw Chamber
1100 x 800 PREMIERTRAK - FEATURES
CSS Adjustment / Overload
1100 x 800 PREMIERTRAK - FEATURES
Impact Chambers
• Rotor position in chamber• Swirl angle is less on Primary• Increased range in tip speed to utilise machines in
secondary applications• Larger unrestricted feed entry to Primary
Primary Primary / Secondary Secondary
1100 x 800 PREMIERTRAK - FEATURES
Optional Grinding Path
• Control oversize• Improve shape• More fines created
1100 x 800 PREMIERTRAK - FEATURES
Overload Protection
• Direct crushing force• Impact of the material
• Tramp metal in feed• Aprons return to preset
1100 x 800 PREMIERTRAK - FEATURESAdjustmentsMaterial Trajectory
Hydraulic / Screw Thread /Shim
Penetration is influenced by:• Tilt angle and length of chute• Size/shape feed• Number hammers• Tip speed• Rotor diameter (larger the
rotor• diameter the greater the• penetration for a given tip• speed)
1100 x 800 PREMIERTRAK - FEATURES
Cone Chambers
Floating Bowl Screw type Bowl Floating Head
1100 x 800 PREMIERTRAK - FEATURES
Cone Chambers Liner Configurations
XC + C
MC
Crushing zones
Longer the crushing zones result in: • Increased reduction• Excellent product shape
ideal for chips
AS
1100 x 800 PREMIERTRAK - FEATURES
Post Screen
Screen running with material
Screen running with no material
Amplitude stays the sameSpeed stays the same
4 Bearing
Amplitude stays the sameSpeed constant
1100 x 800 PREMIERTRAK - FEATURES
Post Screen Interface
Longer the crushing zones result in: � Increased reduction� Excellent product
shape ideal for chips
Post Screen – Quick to Detach
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Holcim Site MachinesPremiertrak 400 Prescreen
1100 x 800 PREMIERTRAK - FEATURES
Premiertrak 400 Prescreen
Output potential up to 400tph (440 US tph)Aggregate, Recycling & Mining Applications
1100 x 800 PREMIERTRAK - FEATURES
Premiertrak 400 Prescreen
1100 x 800 PREMIERTRAK - FEATURES
Premiertrak 400 Prescreen
1100 x 800 PREMIERTRAK - FEATURES
Liner Profiles
Quarry Tooth Jaw Liner
Super Tooth Jaw Liner
Recycle Jaw Liner
� Suitable for both rock and gravel crushing.� Very good wear life, power requirements and
crushing stresses are in good balance.� Most well suited for very abrasive and/or hard
rock applications, good wear life.� Moderate throughput capacity.
� Best ‘all-round’ liner for both rock and gravel crushing and also for some recycling applications.
� Extra contact face affords better ‘grip’ of material thereby increasing throughput.
� Not suited for very abrasive materials.
� Best suited demolition and recycling applications with small CSS requirements.
� Very good ‘grip’ on smooth flat concrete faces.� Not suited for abrasive or hard materials.
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Warrior 1800Heavy Duty Screen
Working Site
1100 x 800 PREMIERTRAK - FEATURES
Warrior 1800
1100 x 800 PREMIERTRAK - FEATURES
Warrior 1800• High capacity up to 600 tph with maximum feed size 60 0mm. (depending on
feed size, mesh size & material type)• Suitable for scalping or stockpiling as a 3 way spl it or 2 way split machine• Heavy duty inclined hopper & belt feeder belt featu ring impact bars & impact
rollers• Hydraulic folding hopper sides & twin drive belt fe eder• Jack up screen facility for access to screen media & collection conveyor• Unique hydraulic slide out facility on tail conveyo r to aid screen media
removal• Heavy-duty aggressive 2 bearing screen box with 10m m stroke (optional
12mm stroke)• Maximum mobility with heavy duty, low ground pressu re crawler tracks• Hydraulically folding conveyors for transport• Heavy duty crawler tracks, complete with removable pendant remote control
system • High performance hydraulic system
1100 x 800 PREMIERTRAK - FEATURES
Warrior 1800
Questions?
Thankyou
