a concept to control acid mist, organic removal, height of deposition and other benefits for electro...
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7/29/2019 A Concept to Control Acid Mist, Organic Removal, Height of Deposition and Other Benefits for Electro Winning Cells
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LATERALFLOW
A CONCEPT TO CONTROL ACID MIST,ORGANIC REMOVAL, HEIGHT OF DEPOSITION
AND OTHER BENEFITS
FOR ELECTRO-WINNING CELLS
F. Penna C. Villaseca R. Villarroel
Tecnocomposites S.A.
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ORGANIC ENTRAINMENTS
THE PROBLEMOrganic entrainments are undesired events
It impregnates over cathodes, structures and equipments
Is flamable so increasing fire risk
Organic burn is present on cathodes thusimpairing the stripping
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ORGANIC ENTRAINMENTS
A SOLUTION FOR ACID MIST THAT TURNS INTO A PROBLEM
Organic adhere to plastic balls additional procedure for washing balls
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ORGANIC REMOVAL
CURRENTLY USED TECHNIQUES
Pumping fromsurface of cells
Scavenger cells
Manual removal Absorbent cloths
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ORGANIC REMOVAL
CURRENTLY USED TECHNIQUES
Spilling due to electrolyte overflow
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A gutter along the entire cell integrated to the frameof the LateralVex
Two gutters connected to a collector located at thecells overflow
A device that can be easily mounted into new or
existing cells Control of electrolyte level and/or heigth of copper
deposition
Cascade effect produced by the overflow at both sides Control of acid mist in the cell
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SUMMARY
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7/29/2019 A Concept to Control Acid Mist, Organic Removal, Height of Deposition and Other Benefits for Electro Winning Cells
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Transport Ducts
Stack
Centrifugal
Fan WetScrubber
Electrolytic Cell
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MAIN COMPOUNDS
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MAIN COMPOUNDS
Suction Plenum(LateralVex)
Multiple Covers
Lateral overflow gutter(LateralFlow)
Guide
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LATERALFLOW
MAIN COMPOUNDS
Suction Plenum(LateralVex)
Lateral overflow gutter(LateralFlow)
Overflow collector
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Cathode
Anode
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MAIN COMPOUNDS
Guide
Flexible cover
Cover
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WORKING PRINCIPLE
Overflow through lateral gutter
Suction Plenum
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Once in lateralOnce in lateral guttersgutters thethe
organicorganic isis transferredtransferred toto
thethe sumpsump
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WORKING PRINCIPLE
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TEST IN EW PLANT
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TEST IN EW PLANT
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Non linear edge
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TEST IN EW PLANT
Cathodes harvested in a cellwithout our technology
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Cathodes harvested in a cellwith LateralFlow
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TEST IN EW PLANT
Clean linear edge
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LATERALFLOW
SIERRA MIRANDA EW PLANT
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SIERRA MIRANDA EW PLANT
Overview
Top of cell view
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Do not require additional handling
during harvest
Clean cathodes
Less organic for removing
High quality and easy strip
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SIERRA MIRANDA EW PLANT
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Effectiveness to confine and to capture acid mist
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SIERRA MIRANDA EW PLANT
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Organic entrainments are evacuated by lateral gutters
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SIERRA MIRANDA EW PLANT
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Uniform overflow by short distance
Improve electrolyte distribution around the plates (*)
Homogeneous deposition throughout the length of thecell (*)
Organic entrainments and other floating impurities are
quickly removed
Better control of heigth of deposition
Acid mist is successfully controlled at the source
(*) In study
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CONCLUSIONS
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GRATITUDE
Minera Sierra Miranda SCM
www.tecnocomposites.cl
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