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Rotating Slurry PoweredDistributor (RSP)

2014

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2

20061941

Magnetic Division

2012

1999

Eriez Magnetics

Eriez Flotation Division History

Canadian ProcessTechnology

COMINCO

1989 M ore than 900 columnscells in operat ion

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Head Offic eCanada

Branch OfficeBrazil

Parent CompanyUSA

Branch OfficePeru

Branch Office

Chile

3

EFD offices

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Last Column Cells Reference in Peru

4

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Mallay (Lima, Peru)

One (01) EFD Column Flotation Cell : Diameter: 1.83 m Height : 9 m Duty : Zinc Flotation

Las Bambas (Cusco, Peru) Two(02) EFD Column Flotation Cell :

Diameter: 1.83 m Height : 8 m Duty : Moly Flotation

Two(02) EFD Column Flotation Cell : Diameter: 1.22 m Height : 8 m Duty : Moly Flotation

Tambomayo (Arequipa, Peru)One (01) EFD Column Flotation Cell :

Diameter: 1.83 m Height : 6 m Duty : Zinc Flotation

Last Column Reference in Peru: 2012 - 2014Cerro Verde II (Arequipa, Peru):

Six (6) EFD Column Flotation Cells: Diameter: 4.88 m Height : 12.00 m Duty : Copper Cleaner

One (1) EFD Column Flotation Cell: Diameter: 3.05 m Height: 10.00 m Duty : Moly Cleaner

Two (2) EFD Column Flotation Cells: Diameter : 1.83 m Height: 10.00 m Duty: Moly Cleaner

Constancia (Cuzco, Peru) Two (2) EFD Column Flotation Cells:

Diameter: 4.876 m Height : 12.00 m Duty : Copper Cleaner

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Southern Peru Copper Toquepala: 1 RSP1.82m x 2.43m H

Southern Peru Copper Toquepala: 1 RSP3.05m x 2.26m H

Cerro Verde II: 2 RSP2.74m x 1.93m H

Volcan: 1 RSP1.98m x 1.52m H

RSP Reference in Peru

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Rotating Slurry Powered Distributor (RSP)

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RSP Distributor

The EFD Rotating S lurryP owered c( RSP )accurately divides astream of pulp into twoor more equal andseparate processstreams.

The no-motor, lowmaintenance design hasmade the RSP thedistributor of choice for

high flow, multi-streamdistribution

2 RSP 6-way for Cerro Verde II

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Typical drawing for RSP

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Benefits of the RSP

Modest capital cost Minimal maintenance cost Provides a near perfect

distribution to two or moreprocess units

Reliable and trouble freeoperation

Rotation is powered by theflow slurry with no drivenmotor is required

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Key features of RSP

Carbon steel construction with rubber lining on wear surfaces likefeed well, tank bottom and lower portion of main shell section,overflow nozzle, outlet nozzles.

Flanged or Victaulic style nozzle connections for inlet / outlets. Unique internal launder design provides stable distribution when

one or more outlets are off line Rotating distribution tank with outlet pipes and elbows to distribute

pulp to the compartments. Slewing Ring Turntable bearing located outside the slurry tank. All unlined carbon steel surfaces are painted Maintenance is minimal to none, other than ensuring the

automatic lubricator is replaced at regular intervals and grease istopped off.

Inspection doors, vent nozzle to eliminate vacuum lock which wouldresult reduced flow through the distributor, lift lugs.

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Optional for RSP

Access platform forinspection.

Alternative material ofconstruction (based on

application andcustomer requirement).

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7 Way RSP for Toquepala, PeruFeed 550 m 3/h

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Required Parameters for RSP sizing

Feed flow rates (Nominal, Design and Minimum). Number of outlets. Specific gravity of slurry. Froth Factor

Particle size and composition abrasiveness of theslurry. Viscosity Space restrictions (if any). Maximum and Minimum operating temperatures. Design loads like seismic, wind, snow or others. Specification for the fabrication- quality control, testing,

paint specs, etc

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Variables that affect RSP sizing

Range of min and max flow rate (wide range ofmin / max flow result in wide range of operatingspeed).

Number of outlets (higher number of outletsneed more space and result in bigger tankdimensions).

Available height for maintenance (size of RSP canbe adjusted to suit customers requirement)

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Limitations

High viscosity slurry (difficult to achieveuniform distribution).

Large particle sizes in slurry result inaccumulation and plugging of nozzles andpipes - Hence not recommended.

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Typical size of RSP (Guideline only)

Nominal Feed flow rate Number ofoutlets

RSP Size

mm x mm H

115 182 m 3 /hr 6 1000 x 800

227 455 m 3 /hr 6 1500 x 1200

568 1022 m 3 /hr 6 2000 x 1600

1136 1705 m 3 /hr 6 2500 x 2200

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3-Way for Red Dog Mine, AlaskaFeed 1400 USGPM

RSP Distributor

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RSP Distributor

Rotating Element Bottom End

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RSP Distributor

5 Way RSP for Toquepala, PruFeed 1800 USGPM

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RSP Distributor

7-Way Compartments Rubber Lined

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RSP Distributor

Turn Table Bearing to Exclude Slurry

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RSP Distributor

7-Way RSP - Fabrication

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RSP Distributor

7-Way RSP - Overflow

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24 Way RSP for PT Tombak, IndonesiaFeed 600 USGPM

RSP Distributor

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Twenty Four Way RSP for PT Tombak, Indonesia

RSP Distributor

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6 Way RSP for Newmont, NevedaFeed 4500 USGPM

RSP Distributor

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RSP Distributor

Rotating Feedwell Assembly

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Spin Force Testing to Confirm Rotation

RSP Distributor

RSP Rotation Test ing

25

30

35

40

45

50

55

500 600 700 800 900 1,000 1,100 1,200 1,300 1,400 1,500

Feed Flow Rate (USgpm)

R o

t a t i n g

S p e e

d ( R P M )

Model Prediction Actual Performance

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RSP Distributor

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5-, 6-, 7- & 8-Way RSPs at Toquepala, Brazil

RSP Distributor

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6-way RSP at Sossego, Brazil

RSP Distributor

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Thank you!