TY - JOUR

T1 - Comparative Laboratory Studies of Conventional and Electrodynamic Fragmentation of an Industrial Mineral

AU - Tschugg, Julia

AU - Öfner, Wolfgang

AU - Flachberger, Helmut

PY - 2017/7/26

Y1 - 2017/7/26

N2 - In order to address comminution efficiency,which could be defined as the increase in mass specificsurface against net specific energy input, the energy consumptionof an industrial mineral with and without preweakeningby high voltage pulses covering the same sizerange were compared. The three tested comminutionsequences consisted of a laboratory jaw crusher or pilotscale high voltage pulse machine at two different circulatingloads, a laboratory crusher and two tumbling millsof differing grinding media; all being operated followingthe principles of energy optimized comminution accordingto the OCS-method. The first results indicate that possibleenergy reduction by electrodynamic pre-weakening isavailable in the immediately subsequent, but not in furtherconventional comminution stages for the tested industrialmineral.

AB - In order to address comminution efficiency,which could be defined as the increase in mass specificsurface against net specific energy input, the energy consumptionof an industrial mineral with and without preweakeningby high voltage pulses covering the same sizerange were compared. The three tested comminutionsequences consisted of a laboratory jaw crusher or pilotscale high voltage pulse machine at two different circulatingloads, a laboratory crusher and two tumbling millsof differing grinding media; all being operated followingthe principles of energy optimized comminution accordingto the OCS-method. The first results indicate that possibleenergy reduction by electrodynamic pre-weakening isavailable in the immediately subsequent, but not in furtherconventional comminution stages for the tested industrialmineral.

KW - Elektrodynamische Zerkleinerung

KW - Vorschwächung

KW - Hochspannungsimpulse

KW - Aufbereitung und Veredlung

KW - Industrieminerale

KW - Optimierte Zerkleinerungskette

KW - Electrodynamic comminution

KW - Pre-weakening

KW - High voltage pulses

KW - Mineral processing

KW - Industrial minerals

KW - Optimized Comminution Sequence

U2 - 10.1007/s00501-017-0638-z

DO - 10.1007/s00501-017-0638-z

M3 - Article

VL - 162.2017

SP - 319

EP - 325

JO - Berg- und hüttenmännische Monatshefte : BHM

JF - Berg- und hüttenmännische Monatshefte : BHM

SN - 0005-8912

IS - 8

T2 - Aufbereitungstechnisches Seminar 2017

Y2 - 26 January 2017 through 27 January 2017

ER -