ARAN BACKFILL SYSTEM SOLUTIONS Sept 2012 ARAN Brisbane - - PowerPoint PPT Presentation

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

Modular Mobile

• 40 ft Shipping Contain Dimension Modules
• T

ransported as Shipping Containers

• Rapid Assembly

Modular System

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

• Mixing Backfill Paste using dry tailings

drawn from the tailings dam

Paste Backfill

MINING BACKFILL

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

• tal 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

2011 Shane Dunstan

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

Backfill Design Site Specific Process Engineering Plant and Equipment Manufacture and Supply Site Specific Plant Variation Engineering and Equipment Supply Site Services

Each Project Package Represents

Project Package

Commercial Contract

Schedule Technical

Three prime components to each Project Package:

• 1. T

echnical Scope of Deliverables

• 2. Schedule of Deliverable

Milestones and Payments

• 3. Contract of Agreement,
• bligations and

commitments between parties.

Five Project Packages

Backfill Design

Commercial Schedule Technical

Site Specific Engineering

Commercial Schedule Technical

Plant & Equipment

Commercial Schedule Technical

Variations Engineering & Equipment

Commercial Schedule Technical

Site Services

Commercial Schedule Technical

Each package consists of the three prime components

Packages Grouped Together

Total Backfill System

Site Services Package Variations Package Plant & Equipment Package Backfill Design Package Site Engineering Package

The Five Project Packages can be grouped together to form a total backfill although they are five separate contractual elements. The technical, scheduling and contracts for each project are independent although they are interactive.

Project Package Summary Description

Site Visit & Material Testing Gather & Review Data Testing: Filtration Strength, Rheology Backfill Design Stability Assessment Paste System Design Fill Distribution Design Barricade Design Delivery of Report Backfill Design Report Presentation and Training

Backfill Design

Site Integration Engineering Engineering Review

• f site services

integration requirements Site visit Development of site specific packages Site Visit Civil Design

Visit Site for Technical review and systems matching Provide Basic Civil Design of Plant Footing

Site Works Planning

Preparation and Presentation of Site Work Documents Civil Works Plans Plant Assembly and Site Services Installation Scope and Schedule for tendering Commissioning Assistance

Site Specific Process Engineering

Project Package Summary Description

Standard Paste Plant Manufacture Procurement Manufacturing Standard Components Plant Factory Assembly Receive all fabrications and components Assembly according to Aran system Factory Testing Testing of Plant systems in factory Factory acceptance Dispatch for shipping to site

Plant and Equipment Manufacture and Supply

Project Package Summary Description

Analysis of Site Standard and/or specific requirements

Gap analysis of Standard Aran systems compared to site requested systems Engineering review and proposal of variation to scope

Detailed Engineering of Variations Detailed design of approved variations to Standard Aran plant scope within budget and schedule Delivery of Variations Manufacture and develop approved variations to the plant for delivery

Site Specific Plant Variation Engineering and Equipment Supply

Project Package Summary Description

Site Supervision Installation

Project management and system installation planning Aran alliance team supervision and assistance for system installation and services connections

System Commissioning

Aran alliance team supervision and technical assistance with wet commissioning and

• perational

stabilisation of the Backfill System Operator and Maintenance Training

Ongoing Services

Backfill Operations Manual Provision of Spare Parts Backfill Optimisation review and recommendations Ongoing training and assistance as required

Site Services

Project Package Summary Description

Backfill Solution built upon five project packages

Site Services Variations of Scope Plant & Equipment Site Engineering Backfill Design

Backfill Solution with Aran Alliance Team Holistic Approach

Backfill Solution

Aran Equipment Suppliers Backfill Design Consultant Mine Client

Contribution from all involved in the project as partners toward mutual success.

ARAN

Aran Alliance Project Package Delivery Mine Client Engagement Successful Backfill System

Looking forwards to the most cost and time efficient model of commissioning a backfill system ….and beyond

Typical Schedule

Month 1

– Project Start – Commencement of material testing – Consultation with all project partners – First Engineering visit and site specific project engineering

Month 3

– Site engineering closure – Procurement and Manufacturing commences – Backfill Engineering Draft submitted

Month 4-7

– Review Engineering – Backfill Design study submitted

Month 4-10

– Manufacturing completed – Detailed site construction planning meeting

Month 11

– Shipping of plant commences

Month 12-13

– Plant arrives on site – Site Construction – Commissioning and T raining – Operations

• Time may shorten or length depending on plant scope and

site logistics

• Assuming Wet-Tails Plant. A plant producing paste from dry

tails or sand will be 4 months shorter delivery