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MIN-NOVATION Mining and Mineral Processing Waste Management Innovation Network Mining Waste Reduction Methods PhD Veiko Karu, Tallinn University of Technology, Department of Mining

Mining waste reduction methods

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MIN-NOVATION project pilot units

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MIN-NOVATION Mining and Mineral Processing Waste Management Innovation Network

Mining Waste Reduction Methods

PhD Veiko Karu, Tallinn University of Technology, Department of Mining

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PROJECT PARTNERSHIP

Mapa do wklejenia

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STUDY TRIPS

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PROJECT GOALS

Bringing mining sector stakeholders together

Promoting innovative approaches to mining waste prevention, recovery, recycling and re-use

Pursuing cross-regional initiatives

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• ESTONIA

• Mobil installation for recovery waste from oil shale and limestone mining

• FINLAND

• Lab for mining and processing waste research

• POLAND

• Installation for recovering waste from coal mining

• SWEDEN

• Mobil installation for recovering of different solid waste materials (slags,

alum shale residues, fly ashes)

PROJECT PILOT UNITS

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MIN-NOVATION Mining and Mineral Processing Waste Management Innovation Network

PILOT INVESTMENT FOR ESTONIA

“Waste-to-product mobile unit”

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Oil shale waste rock

Oil shale for oil or electricity

Limestone for aggregate or backfilling

Pilot unit

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THE PRINCIPLE OF OPERATION Crushing bucket

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THE PRINCIPLE OF OPERATION Mini wheelloader

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THE PRINCIPLE OF OPERATION Sieving unit

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Enrichment unit for oil shale

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Mini beltconveyor

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MIN-NOVATION Mining and Mineral Processing Waste

Management Innovation Network

PILOT INVESTMENT FOR POLAND

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1 – wastes charger

2 – crusher conveyor

3 – retaining construction

4 – impact crusher

5 – vibrating screens

6,7,8,9 – belt conveyors

10 – product containers

11 – de-dusting system

INSTALLATION PROJECT

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Impact crusher M5:

• Capacity 1,5 tph

• Power 7,5 kW

• 1000 RPM

INSTALLATION PROJECT

• Wastes loaded from waste stockpile by loader to charger

• From charger material is directed to impact crusher M5

• After crushing material is led to two-deck vibrating screens

• Fraction >31.5 mm is redirected to impact crusher

• Fraction 5-31.5 mm (final product) is put to product container

• Fraction 0-5 mm („Secondary waste”) is directed to second container

• Product containers periodically cleared to product stockpiles

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WP 5 Pilot investment by Örebo Univ. (P4)

A mobile unit for recovery of metals from various categories of mining waste and metal-rich process residues (1) Crushing/milling (2) Leaching (3) Recovery of elements from solution in sequence: • A combination of a jaw crusher and another type of mill

crushing the waste down to roughly 0.1 mm. • A leaching apparatus designed to leach (using manipulated

water solutions) solid waste using high pressure and temperature.

• A mixer-settler unit for recovery of metals by using liquid/liquid extraction

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WP 5 Pilot investment by Örebo Univ. (P4)

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MIN-NOVATION Mining and Mineral Processing Waste

Management Innovation Network

FINNISH PILOT INVESTMENT

Kainuun Etu Ltd

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DISCRIPTION

crushing grinding screening sieving flotation

filtering fine grading

crushing grinding screening sieving flotation

filtering fine grading

Thermodymanic reactions, material optimization, chemical

characterization, material modification…

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AJA

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THE PRINCIPLE OF OPERATION - ELEMENTS AND CAPACITY

Elements of investment (by now)

Capasity: so far only preliminary experiences . XRF: 20 min / sample; TGA-DT, DSC: 3 samples / shift, furnace: 1 heating / 1 kg / shift.

XRF MiniPal4 for chemical characterization of the samples

Chamber furnace for material modification

TGA-DT, DSC for thermodynamic reactions and material optimization

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WAYS TO KEEP INFORMED ABOUT MIN-NOVATION

Sign up for Min-Novation newsletters

Join the Min-Novation Linked-In group

Min-Novation conference at the end of 2013 in Poland

Contact project manager: [email protected]

or communication officer: [email protected]

See Min-Novation website: www.min-novation.eu

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THANK YOU !

Veiko Karu Tallinn University of Technology, Department of mining [email protected]