pneumatic jigging of ferro alloys - like the · pdf filebellows valve. screen gate. batch jig....

PNEUMATIC JIGGING OF FERRO ALLOYS -like the barbers cat?

PNEUMATIC JIGGING OF FERRO ALLOYS -like the barbers cat?

PD PD Scott Scott -- MintekMintek 7575

PHYSICAL SEPARATION –PRINCIPLESPHYSICAL SEPARATION PHYSICAL SEPARATION ––PRINCIPLESPRINCIPLES

PROPERTIES OF MATERIALPROPERTIES OF MATERIAL

•• PARTICLES NOT MINERALSPARTICLES NOT MINERALS

•• LIBERATIONLIBERATION

•• PARAMETERPARAMETER•• DensityDensity•• SizeSize

CHARACTERISTICS OF SEPARATORCHARACTERISTICS OF CHARACTERISTICS OF SEPARATORSEPARATOR

•• TURBULENT REMIXINGTURBULENT REMIXING

•• RESIDENCE TIMERESIDENCE TIME

•• ENTRAINMENTENTRAINMENT

GRADE VS RECOVERYGRADE VS RECOVERYGRADE VS RECOVERY

GRAVITY SEPARATION PRINCIPLESGRAVITY SEPARATION GRAVITY SEPARATION PRINCIPLESPRINCIPLES

TABLETABLETABLE

SETTLING RATESSETTLING RATESSETTLING RATES

•• LARGE > SMALL PARTICLESLARGE > SMALL PARTICLES

•• DENSITY DENSITY ––

•• SHAPESHAPE

•• SOLIDS CONCENTRATION/MEDIASOLIDS CONCENTRATION/MEDIA

DENSITYDENSITY

•• HETEROGENEITY HETEROGENEITY –– DIFFERENT CUT DIFFERENT CUT

SIZESIZE

JIG SCHEMATICJIG SCHEMATICJIG SCHEMATIC

•Float•Gate•Air Intake•Water level•Media Density

MINERAL JIGSMINERAL JIGSMINERAL JIGS

MINERAL JIGSMINERAL JIGSMINERAL JIGS

MINERAL JIGSMINERAL JIGS

JIG SIZEJIG SIZEJIG SIZE

•• CAPACITY CAPACITY –– WIDTH 60t/h = 1mWIDTH 60t/h = 1m

•• LENGTH LENGTH –– RESIDENCE TIMERESIDENCE TIME

JIG PICTUREJIG PICTUREJIG PICTURE

VALVE ANIMATIONVALVE ANIMATIONVALVE ANIMATION

BELLOWS VALVEBELLOWS VALVEBELLOWS VALVE

SCREEN GATESCREEN GATESCREEN GATE

BATCH JIGBATCH JIGBATCH JIG

JIGSCANJIGSCANJIGSCAN

•• WATER LEVELWATER LEVEL

•• PULSE VELOCITYPULSE VELOCITY

•• BED DENSITY BED DENSITY ––

NUCLEONICNUCLEONIC

•• MODEL BASED MODEL BASED

GATE CONTROLGATE CONTROL

BLOCK FLOW DIAGRAMBLOCK FLOW DIAGRAMBLOCK FLOW DIAGRAM

PLANT ANIMATIONPLANT ANIMATIONPLANT ANIMATION

PLANT ANIMATIONPLANT ANIMATIONPLANT ANIMATION

PLANT ANIMATIONPLANT ANIMATIONPLANT ANIMATION

METALLOYSMETALLOYSMETALLOYS

ZESTAFONIZESTAFONIZESTAFONI

PARTITION CURVEPARTITION CURVEPARTITION CURVE

COAL PERFORMANCECOAL PERFORMANCE

BIBLIOGRAPHYBIBLIOGRAPHY

•• Mineral and Metal Extraction Mineral and Metal Extraction --

An Overview, LC An Overview, LC WoollacottWoollacott and RH Eric.and RH Eric.

•• The APIC Jig and JIGSCAN Controller take The APIC Jig and JIGSCAN Controller take

the guesswork out of Jigging, Grantthe guesswork out of Jigging, Grant

LovedayLoveday, Andrew, Andrew JonkersJonkers

•• Atoll,Atoll, Private CommunicationsPrivate Communications