mining waste reduction methods
DESCRIPTION
MIN-NOVATION project pilot unitsTRANSCRIPT
MIN-NOVATION Mining and Mineral Processing Waste Management Innovation Network
Mining Waste Reduction Methods
PhD Veiko Karu, Tallinn University of Technology, Department of Mining
PROJECT PARTNERSHIP
Mapa do wklejenia
STUDY TRIPS
PROJECT GOALS
Bringing mining sector stakeholders together
Promoting innovative approaches to mining waste prevention, recovery, recycling and re-use
Pursuing cross-regional initiatives
• 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
MIN-NOVATION Mining and Mineral Processing Waste Management Innovation Network
PILOT INVESTMENT FOR ESTONIA
“Waste-to-product mobile unit”
Oil shale waste rock
Oil shale for oil or electricity
Limestone for aggregate or backfilling
Pilot unit
THE PRINCIPLE OF OPERATION Crushing bucket
THE PRINCIPLE OF OPERATION Mini wheelloader
THE PRINCIPLE OF OPERATION Sieving unit
Enrichment unit for oil shale
Mini beltconveyor
MIN-NOVATION Mining and Mineral Processing Waste
Management Innovation Network
PILOT INVESTMENT FOR POLAND
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
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
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
WP 5 Pilot investment by Örebo Univ. (P4)
MIN-NOVATION Mining and Mineral Processing Waste
Management Innovation Network
FINNISH PILOT INVESTMENT
Kainuun Etu Ltd
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…
K
AJA
K
MIN
-NO
V
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
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
