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Gravity, flotation, magnetic separation and cyanide leaching — equipment selection, process design and complete plants to suit your ore.

01
GRAVITY SEPARATION

Gravity Separation

Separation by density difference — no reagents, low cost and clean. The first choice for placer gold, tin, tungsten and tantalum-niobium.

Suitable ores

Placer goldHard-rock goldTinTungstenTantalum-niobiumTi-Zr mineral sandsChromite

Typical flow

  1. Feeding / washing & screening
  2. Crushing & grinding (hard rock)
  3. Classification
  4. Jig / spiral roughing
  5. Shaking table / centrifuge cleaning
  6. Heavy-mineral concentrate

Main equipment

Sawtooth-Wave JigDiaphragm Jig6-S Shaking TableFRP Spiral ChuteCentrifugal ConcentratorHydraulic ClassifierRotary Drum WasherTrommel ScreenDiesel Mobile TrommelGold Washing Plant

On-site photos

Mobile trommel wash plant operating at an alluvial gold siteTrommel screen feeding sluices for placer gold recoveryBanks of spiral chutes running in a processing plant
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02
FLOTATION

Flotation

Separation by differences in surface properties, suited to finely disseminated base-metal sulfides and some non-metallic minerals.

Suitable ores

CopperLead-zincMolybdenumFluoriteGraphite

Typical flow

  1. Crushing & screening
  2. Grinding & classifying
  3. Conditioning
  4. Rougher / scavenger / cleaner
  5. Thickening & dewatering
  6. Concentrate

Main equipment

Jaw CrusherCircular Vibrating ScreenBall MillSpiral ClassifierHydrocycloneAgitation TankFlotation MachineInclined-Tube Thickener

On-site photos

Flotation cell bank in the workshopFlotation cell bank and walkway in operationWide view inside a flotation plant
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03
MAGNETIC SEPARATION

Magnetic Separation

Separation by magnetic susceptibility: simple, high-capacity, suited to magnetite and heavy sands with magnetic minerals.

Suitable ores

MagnetiteIlmeniteMagnetic heavy sands

Typical flow

  1. Crushing & screening
  2. Grinding & classifying
  3. Magnetic roughing / cleaning
  4. Dewatering
  5. Iron concentrate

Main equipment

Jaw CrusherBall MillHydrocycloneWet Drum Magnetic SeparatorLinear Vibrating ScreenDewatering ScreenFRP Spiral Chute
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04
CYANIDE LEACHING

Cyanide Leaching

Suited to finely disseminated gold ore and gold-bearing tailings. We supply leaching, adsorption, desorption-electrolysis and gold-sludge refining equipment with process configuration — equipment only.

Suitable ores

Hard-rock goldGold-silver oreGold-bearing tailings

Typical flow

  1. Crushing
  2. Grinding & classifying
  3. Thickening
  4. Leaching & adsorption
  5. Desorption & electrolysis
  6. Gold sludge

Main equipment

Leaching Agitation TankLift Agitation Tank (XBT)Desorption & Electrolysis UnitInclined-Tube ThickenerBall MillHydrocycloneCentrifugal Concentrator

On-site photos

Carbon-in-leach tank row next to a ball millAssembled agitation tanksAgitator shafts and impellers
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TYPICAL CONFIGURATIONS

Typical Configurations: Gold & Silver / Copper

General examples for discussion. The actual flowsheet and equipment models depend on ore testing and site conditions.

Hard-rock gold · CIL typical configuration

For finely disseminated gold; combined gravity and leach recovery

  1. CrushingJaw crusher + secondary crusher + vibrating screen
    Jaw Crusher · Circular Vibrating Screen
  2. GrindingBall mill in closed circuit with spiral classifier or hydrocyclones
    Ball Mill · Hydrocyclone
  3. GravityCentrifuge and shaking table recover coarse gold in the grinding circuit
    Centrifugal Concentrator · 6-S Shaking Table
  4. ThickeningThickener adjusts slurry density
    Inclined-Tube Thickener
  5. Leach & adsorbSeveral leaching tanks in series
    Leaching Agitation Tank · Lift Agitation Tank (XBT)
  6. DesorptionLoaded-carbon desorption and electrolysis to gold sludge
    Desorption & Electrolysis Unit
  7. RefiningGold-sludge refining equipment set (see below)
Equipment and process configuration only; the actual flowsheet is set by ore testing.

Placer gold · gravity typical configuration

Washing & screening + jig roughing + centrifuge / table cleaning

  1. FeedingTrough feeder / vibrating feeder
    Trough Feeder · Vibrating Feeder
  2. WashingDrum washer or trommel; diesel mobile trommel for sites without power
    Rotary Drum Washer · Trommel Screen · Diesel Mobile Trommel
  3. RoughingJigs, sluices
    Sawtooth-Wave Jig · Gold Washing Plant
  4. CleaningCentrifuge, shaking table
    Centrifugal Concentrator · 6-S Shaking Table
  5. ConcentrateConcentrate drying
    Rotary Dryer
Equipment is sized to clay content, size distribution and capacity.

Copper · 500 t/d flotation typical configuration

Crushing about 37.5 t/h on two shifts; grinding and flotation about 21 t/h continuous

  1. CrushingThree-stage, one closed circuit: trough feeder 1240×980 → jaw crusher PE-500×750 → cone crushers → YK1848 circular screen, belt conveyors
    Trough Feeder · Jaw Crusher · Circular Vibrating Screen · Belt Conveyor
  2. GrindingSingle-stage closed circuit: vibrating feeders → grate ball mill GM2145 + 2FG-20 spiral classifier, grind 60–75% −200 mesh; add cyclones for a finer grind
    Vibrating Feeder · Ball Mill · Spiral Classifier · Hydrocyclone
  3. ConditioningTwo-stage conditioning in XB20 tanks
    Agitation Tank
  4. FlotationOne rougher, two scavengers, two cleaners: SF-4, JJF-4 and SF-1.2 cells
    Flotation Machine
  5. DewateringConcentrate thickener + filter press; tailings thickening with process-water recycling
    Inclined-Tube Thickener
Sulfide and oxide copper ores need different processes; the final flowsheet is set by ore testing.

Gold-sludge refining (silver parting) equipment set

Follows desorption-electrolysis to treat electrowon gold sludge

  1. FlowElectrowon gold sludge → silver parting → vacuum filtration → silver recovery / crude gold → drying & smelting
  2. ReactionTitanium reactors, anti-corrosion heating plates
  3. VentilationPP fume hood, FRP fan
  4. FiltrationΦ500 bag filters, jet vacuum pump and piping
Equipment and layout only.
ON-SITE PHOTOS

On-site Photos

Real photos of mineral processing equipment being installed and running on site — a reference for equipment form and plant layout. Tap a photo to enlarge it.

Mobile trommel wash plant operating at an alluvial gold siteMobile trommel gold wash plantTrommel screen feeding sluices for placer gold recoveryTrommel and sluice gold recoveryBanks of spiral chutes running in a processing plantSpiral chute separation circuitRotary drum scrubber mounted on a steel platformRotary drum scrubber on siteRotary drum scrubber: Φ2 × 5 m drum with a 2.5 m polyurethane screen section, tyre drive (in assembly)Rotary drum washerTrommel screen cage, with ball mills behindTrommel screenHigh-weir spiral classifierSpiral classifierPainted ball mill in the workshopBall millFlotation cell bank in the workshopFlotation cellsFlotation cell bank and walkway in operationFlotation cell bankWide view inside a flotation plantFlotation plant interiorBall mill with its drive motor, in the workshopBall millCarbon-in-leach tank row next to a ball millCIL leaching tanks and ball millThickener tank being installed inside scaffoldingThickener under installationBall mills set on concrete foundations during installationBall mills set on foundationsSteel ore bin structure with control cabinetsSteel ore bin structureOre stockpile with belt conveyor systemOre stockpile and conveyorsOre stockpiles beside an open-pit mining areaOpen-pit area and ore stockpilesTwo cranes lifting a ball mill shell into placeEquipment lifting on siteCrane lifting a drum unit onto its foundationsDrum unit lifted into place
HOW WE WORK

How We Work

  1. RequirementsOre type, grade, capacity and site conditions
  2. Ore TestingBeneficiation tests where needed to fix the process
  3. Process DesignFlowsheet, equipment selection and layout
  4. QuotationItemised quote with delivery and payment terms
  5. ProductionBuilt to order at the Shicheng base
  6. ShippingPacking, container loading and transport
  7. InstallationInstallation guidance and commissioning support

Tell us your ore and capacity — get a configuration and quotation

Our engineers recommend a flowsheet and equipment set based on your ore.

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Photo: David Ratledge, Wikimedia Commons, CC BY 4.0