IHC MerwedeDredging and Mining

Willem Clements

Lead Engineer Mineral Processing

IHC Dredging and Mining

12 October 2009

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Contents

• Highlight IHC Dredging Installations

• Trailing Suction Hopper Dredge

• Bucket Chain Ladder Dredge

• Bucket Wheel Dredge

• Cutter Suction Dredge

• IHC Mineral Processing Equipment

• IHC Jig – Land Based Installation

• IHC Jig – Floating Installation

• IHC Jig – Hardrock Installation

• IHC Jig – Standard Container plant

• Conclusion

IHC Dredging and Mining

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Highlight IHC Dredging Equipment

IHC Dredging and Mining

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Trailing Suction Hopper Dredge

Excellent for off-shore aggregate mining

Land reclamation

Environmental dredging

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Bucket Chain ladder Dredge

Caterpillar track chains and bolt able buckets

Less maintenance required due to tracks

Increasing operational time

Low noise level

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Bucket Wheel Dredge

High volumetric concentration

Constant output regardless of swing direction

Can be used in adhesive soils such as plastic clay

Low spillage

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Cutter Suction Dredge

High cutting forces in compacted soils

Easy on maintenance

Versatile excavation tool in a broad range of soils

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IHC Mineral Processing Equipment

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IHC Jig - Land Based Installation

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IHC Jig - Floating Installation

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IHC Jig - Hardrock Installation

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IHC Jig – Standard container plant

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IHC Jig – Standard container plant

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Flowsheet Container Plant

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IHC Jig – Standard container plant (options)

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Design of the IHC Jig

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Hydraulic Drive System

• Master unit

• Frequency controller

• Hydraulic cylinders

• Master cylinders

• Slave cylinders

• Sawtooth pulsation

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Advantages of the IHC Jig

• Excellent recovery (98% for gold)

• Able to separate fine mineral grains (50 microns)

• High capacities (12 module jig = 240 m3/hr solids)

• Less sensitive to fluctuations in the feed (0 to 12 mm)

• Low water consumption

• Low power consumption

• Low running costs

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Gold recovered with an IHC Jig

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ConclusionIHC offers comprehensive packages for the alluvial mining industry. IHC is a “one stop shop” for:

• Mining studies (Mineral Technological Institute)

• Wet excavation equipment

• Mineral processing equipment

• Control and automation solutions

Innovative custom build solutions

• Artic beaver for sand mining

• Deep sea Tin mining

• Two dredgers feeding one mineral separation plant

• Sustainable mining solutions

IHC Dredging and Mining

12 October 2009

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Thank you for your attention

WWW.IHCMINERALPROCESSING.COM

mineralprocessing.ts@ihcmerwede.com