ARAN BACKFILL SYSTEM SOLUTIONS Sept 2012
ARAN • Brisbane Australia head office • Established in Malaysia & Canada • Developer of construction & mining projects – broad range of experience • Partner & Alliance member in major projects • Continuous innovation and design
Global Experience • Projects Delivered + 200 Complete Mixing System + 30 Mine Backfill Projects • Africa • Asia • Europe • Australia • North America • South America
Aran Through Mixing Mobile Modular
Modular System •40 ft Shipping Contain Dimension Modules •T ransported as Shipping Containers •Rapid Assembly
Accurate Binder Feeder Aran SiloFeedIII • Adjustable side seals compensate for metering belt wear. • New deep metering cleats reduce belt speed & increase feeder life. • Very accurate dimensional control of case & mechanical components. • Metering belt can be changed in one hour from one side without need to dismantle bearings, pulleys, or sensors. • Integral self clearing system to clear internal leakage.
Accurate Binder Feeder
Aran Continuous Mixer
GOLD MINE, Western Australia. Simple Paste Backfill Plant. May 2008. ARAN supplied mixer, tailings conveyor and feeder, hopper and grizzly.
GOLD MINE, Western Australia. Simple Paste Backfill Plant. May 2008. ARAN supplied mixer, tailings conveyor and feeder, hopper and grizzly.
Continuous Mixers.
The purpose of the weir is to retard the flow of the mixture which allows the paddles more time to blend the materials.
Continuous Mixing Time. Less may be more! • In a continuous mixer, material enters at one end and exits the other. • Transit time is a function of; • Mixing blade size, • Mixing blade angle, • Speed, • Length.
Continuous Mixers. •High Intensity •Collision & Division •70 RPM •(Paste mixers can feature reversible shaft rotation, variable blade direction and variable speed drive) •Non-wearing case lining
MINING BACKFILL Paste Backfill • Mixing Backfill Paste using dry tailings drawn from the tailings dam
Paste using compressed Volcanic Dust (Tuff) Indonesia
Filter Cake Tailings
BackFill Engineering Stage 1 • Review mine studies and operational plans, tailings and waste management, mine method, stope development and schedules • Tailing test work for: – tails filtration data – USC specific for fill demands – Detailed Rheology study • Exposure Stability assessment
Backfill Engineering Stage 2 • Develop mass flow and water flow sheets • Verify equipment selection and review Process Flow and Process & Instrumentation Drawings • Verify Plant location and locate boreholes • Flow modelling and Schematic Design of paste fill delivery system including pipe, instrumentation and pump selection
Basic Engineering Stage 2 (cont) • Placement and Barricade Design – material specifications and construction details • Fill placement schedule and control • Cost Estimation for operating costs, reticulation and barricades • Paste Fill Design Report
Challenging Environments
Rapid Assembly
Expandable
T otal System Integration
ARAN Modular System includes: Modular Bolted • Thickeners Aran/FL Smidth • Modular E-Disc Filter Easy Transportation to site and rapid assembly
Developed and T ested Process and Control System
Intelligent Control & Logic, Sequenced Operations and Interlocks
Modular Plant Key Features • Minimal on-site construction works • Rapid site assembly and commissioning • Pre-engineered – low risk • Below average paste plant project cost (project data graph, available on request) • Open internal layout • Clean operating areas • Accurate Paste control
PASTE BACKFILL SYSTEM PROJECT DELIVERY MODEL For Large Projects with Long Schedules and Multiple Alliance Members Shane Dunstan 2011
Agenda This presentation will summarise the process by which Aran will coordinate the delivery of packages for the Development and Commissioning of Backfill Systems for Total Backfill System Supply. The Aran alliance team method of project delivery has been developed after considerable industry engagement and project planning analysis. The delivery of a “total backfill system” in “project packages” provides both the mine and the Aran led group of suppliers the strength of confidence and flexibility to deliver a comprehensive backfill system in good time and budget.
Aran Alliance Team The Aran Alliance Team represents the network of companies Aran will lead for the supply and commissioning of all engineering, equipment and technical services for the Backfill System. • Client / Project Lead EPC • Expert Backfill Design Consultants • Aran Consulting Engineering Services • Aran Equipment Suppliers • FL Smidth • Putzmeister • Weir Minerals • Rockwell • Aran Manufacturing Services
Total Backfill System The “Total Backfill System” is comprised of up to Five (5) discrete “Project Packages” These Project Packages can be delivered individually and to some degree independently both commercially and technically. They are independent in financial and time schedules. All five Project Packages can be grouped as a single Total Backfill System supply, yet each package will remain as clearly independent commercial milestones.
Project Packages TOTAL BACKFILL SYSTEM Site Specific Plant Plant and Site Specific Variation Backfill Equipment Site Services Process Engineering Design Manufacture Engineering and and Supply Equipment Supply
Each Project Package Represents Three prime components to each Project Package: Technical 1. T echnical Scope of Schedule Deliverables 2. Schedule of Deliverable Commercial Contract Milestones and Payments 3. Contract of Agreement, obligations and commitments between Project Package parties.
Five Project Packages Each package consists of the three prime components Technical Technical Technical Schedule Schedule Schedule Commercial Commercial Commercial Plant & Site Specific Backfill Design Equipment Engineering Technical Technical Schedule Schedule Commercial Commercial Variations Engineering Site Services & Equipment
Packages Grouped Together Site The Five Project Packages Backfill Engineering Design can be grouped together Package Package to form a total backfill although they are five Plant & Variations Equipment separate contractual elements. Package Package The technical, scheduling and Site Services contracts for each project are Package independent although they are interactive. Total Backfill System
Project Package Summary Description Site Visit & Material Testing Gather & Review Backfill Design Data Delivery of Report Stability Assessment Backfill Paste System Design Backfill Design Testing: Filtration Design Report Fill Distribution Strength, Rheology Design Presentation and Training Barricade Design
Project Package Summary Description Site Integration Engineering Engineering Review Site Visit Civil Design of site services Site Works Planning Visit Site for Technical integration Site Specific review and systems requirements Preparation and matching Process Presentation of Site Site visit Provide Basic Civil Work Documents Engineering Design of Plant Footing Development of site Civil Works Plans specific packages Plant Assembly and Site Services Installation Scope and Schedule for tendering Commissioning Assistance
Project Package Summary Description Standard Paste Plant Manufacture Procurement Plant Factory Assembly Plant and Manufacturing Factory Testing Receive all Equipment Standard fabrications and Testing of Plant Manufacture Components components systems in factory and Supply Assembly according Factory acceptance to Aran system Dispatch for shipping to site
Project Package Summary Description Analysis of Site Standard and/or specific requirements Site Specific Gap analysis of Detailed Engineering of Variations Plant Standard Aran Delivery of Variations Variation systems compared Detailed design of to site requested approved variations Engineering Manufacture and to Standard Aran systems develop approved and plant scope within variations to the plant Equipment Engineering review budget and schedule for delivery and proposal of Supply variation to scope
Project Package Summary Description Site Supervision Installation Project management System Commissioning and system Ongoing Services installation planning Aran alliance team supervision and Backfill Operations Aran alliance team technical assistance Manual supervision and Site with wet assistance for system Provision of Spare commissioning and Services installation and Parts operational services connections Backfill Optimisation stabilisation of the review and Backfill System recommendations Operator and Ongoing training and Maintenance Training assistance as required
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