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Training Center HARITA GROUP GRADE CONTROL NIKEL

Grade Control Nikel

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Page 1: Grade Control Nikel

Training Center

HARITA GROUP

GRADE CONTROL NIKEL

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Grade Control Process FlowBlock Model

Mine Planning

Stripping

Mining

Confirm Ore type, Ni grade & Chemistry

Equipment selection

Mining method

Production Sampling

TOR Sampling

Screening

SSP Hauling

Belt cut Sampling

@500t SSP (±80Kg)

WOS Allocation based on

ore type and chemistry

MRAL

(Mine Rush Assay Lab)

Trommel

(4 x 78Kg SSP)

Rep. 2,000t SSP

Official

Lab

± 3Kg

± 77Kg

± 3Kg

Training Center HARITA GROUP

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Grade Control Terminology

• OB, Ore, BZ• Limonite, Saprolite, Bedrock

• Garnierite• Silica

• Serpentine• Low Grade Saprolite

Training Center HARITA GROUP

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CONTOH PROFIL DAERAH EKSPLORASI NIKELCONTOH PROFIL DAERAH EKSPLORASI NIKEL

Training Center HARITA GROUP

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CONTOH BEDROCK 1CONTOH BEDROCK 1

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CONTOH BEDROCK 2CONTOH BEDROCK 2

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CONTOH PELAPUKANCONTOH PELAPUKAN

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ZONE GRADE TINGGIZONE GRADE TINGGI

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GARNIERITE PADA RETAKANGARNIERITE PADA RETAKAN

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CONTOH SINGKAPAN BATUANCONTOH SINGKAPAN BATUAN

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UNSERPENTINISEDPERIDOTITE

LOW-MED SERPENTINISED

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CONTOH MEGASKOPIS BATUANCONTOH MEGASKOPIS BATUAN

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MED-HIGHSERPENTINISED

HIGHLY SERPENTINISED

HYBRID PURE

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CONTOH MEGASKOPIS BATUANCONTOH MEGASKOPIS BATUAN

Training Center HARITA GROUP

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0% SERP

Warna terang Glassy & Crystalline

Warna gelapDull & amorphous

80% SERP80% SERP

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WARNA DAN ASPEK PADA REKAHAN BATUANWARNA DAN ASPEK PADA REKAHAN BATUAN

Training Center HARITA GROUP

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50% Serpentine

50% Serpentine

0% Serpentine

0% Serpentine

10% Serpentine

10% Serpentine

80% Serpentine

80% Serpentine

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Training Center HARITA GROUP

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CONTOH TIPE ORE 1CONTOH TIPE ORE 1

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CONTOH TIPE ORE 2CONTOH TIPE ORE 2

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CONTOH TIPE ORE 3CONTOH TIPE ORE 3

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CONTOH TIPE ORE (CONGLOMERATE)CONTOH TIPE ORE (CONGLOMERATE)

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BRECCIA GRADE TINGGIBRECCIA GRADE TINGGI

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BRECCIA GRADE SANGAT TINGGIBRECCIA GRADE SANGAT TINGGI

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GARNIERITEGARNIERITE

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SERPENTINESERPENTINE

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CONTOH TIPE SILICA CONTOH TIPE SILICA

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CONTOH TIPE SILICACONTOH TIPE SILICA

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STRIPPING PROCESS

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CONTROL LEVELCONTROL LEVEL

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INDIKASI OREINDIKASI ORE

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PELEBARAN OREPELEBARAN ORE

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PEMBERSIHAN OVERBURDEN (OB)PEMBERSIHAN OVERBURDEN (OB)

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INDIKASI OB DAN TOP OREINDIKASI OB DAN TOP ORE

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STRIPPING DENGAN BACKHOESTRIPPING DENGAN BACKHOE

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METODE PENAMBANGAN

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PROSES PENAMBANGAN (DOZER SHOVEL)PROSES PENAMBANGAN (DOZER SHOVEL)

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PROSES PENAMBANGAN (ORE DIMUAT KE TRUCK)PROSES PENAMBANGAN (ORE DIMUAT KE TRUCK)

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PENAMBANGAN DENGAN DOZER + DIRECT DIGGINGPENAMBANGAN DENGAN DOZER + DIRECT DIGGING

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PENAMBANGAN DENGAN DIRECT DIGGINGPENAMBANGAN DENGAN DIRECT DIGGING

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PENAMBANGAN DENGAN DOZERPENAMBANGAN DENGAN DOZER

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SAMPLING ORE

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Screen 2”Kantong Plastik

Shovel

Splitter

Keranjang

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CONTO DI-SCREENING 2”CONTO DI-SCREENING 2”

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QUARTERING CONTOQUARTERING CONTO

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HOMOGENISASI CONTOHOMOGENISASI CONTO

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Training Center HARITA GROUP

FASE KE-2 QUARTERINGFASE KE-2 QUARTERING

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CONTO DIMASUKKAN KE DALAM PLASTIKCONTO DIMASUKKAN KE DALAM PLASTIK

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SCREENING STATION &

BELT CUT SAMPLING

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SSPSSP

18” SCREEN18” SCREEN6” SCREEN6” SCREENCRUSHERCRUSHER

STACKERSTACKERDUMPING POINTDUMPING POINT

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AUTOMATIC SAMPLERAUTOMATIC SAMPLER

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51Grade Control Nikel

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BELT CUT AUTOMATIC SAMPLINGBELT CUT AUTOMATIC SAMPLING

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SCREENING STATION SAMPLINGSCREENING STATION SAMPLING

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SCREENING STATION SAMPLINGSCREENING STATION SAMPLING

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SCREENING STATION SAMPLINGSCREENING STATION SAMPLING

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SCREENING STATIONSCREENING STATION

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SCREENING STATION & VIBRATING SCREENSCREENING STATION & VIBRATING SCREEN

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BLENDING SLURRY AND SSPBLENDING SLURRY AND SSP

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SLURRY UNTUK REKLAMASISLURRY UNTUK REKLAMASI

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SLURRY UNTUK REKLAMASISLURRY UNTUK REKLAMASI

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FASILITAS & PROSEDUR SAMPLING

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MICROWAVE OVENMICROWAVE OVEN

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Training Center HARITA GROUP

PULVERIZERPULVERIZER

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TROMMELTROMMEL

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TROMMEL DENGAN AUTOMATIC BURNERTROMMEL DENGAN AUTOMATIC BURNER

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SCREENINGSCREENING

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BOTTOM ORE RECOVERY

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BZBZOBOBOREORE

BZBZ

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SILICASILICA

OREOREOREORE

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Training Center HARITA GROUP

SILICA POCKETSILICA POCKET

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SILICA LAYERSILICA LAYER

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REVEGETATIONREVEGETATION