Kisa bucketwheels

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Dewatering & Recovery of granular “sandy” solids

Product Dewatering – KISA bucketwheels

• Extremely low energy demand – 50hp installed for 1300 stph

• Models to ~1700 stph• Excellent sand capture: >98.5%

to >99.5% for extended bath models

• Low residual moisture c.f. dewatering screen

• Very low maintenance costs

Superior sand dewatering

Simple Design & Operation

• PU drainage mats • Leading edge Hardox 500• Sliding chutes UHMWPE• SEW planetary drive• Standard pillow block

bearings

Product Dewatering – KISA bucketwheels

• Custom designs are available• Bath sized to give ~>99.5% recovery of down to

270 mesh sand – free settling conditions• Options : load sensitive VS automation, exotic

materials of construction

KISA’s I.P.: siphon-effect dewatering

Dewatering & Recovery of granular “sandy” solids

Lateral coils – raking fine sand to the buckets

Tailings Dewatering – case study

• Up to 165 stph fine sand 70x270# in ~3,000gpm flow

• Installed Price : Savings >$100k vs. pump/cyclones/DW screens

• Energy: Savings ~$60k p.a. @ 6000 hrs, 10c/kWh

• Annualized spares savings ~$7k• Similar sand recovery & cake

moisture• Simplicity!

Superior investment

FUTURE DEVELOPMENTS

• Enhanced washing of manufactured sand – or well liberated natural sand

• Use of polymers to co-dispose clay/silt fractions with sand-size tailings

• Multiple wheels in one bath to effect classification & dewatering in one simple device

• PHOENIX has invested in a demonstration machine – up to ~40stph capacity

Enhanced washing with bucketwheel

• Wash water passes counter-current to settling sand.

• Can reduce entrained “fines” to very low levels.

• Minimal wear & low energy demand.

• Easy to understand & operate. • Simplicity!

Superior investment

Multi Product Wheels

• Feed at one end, effluent a the other end

• “Trajectory” classifying tank• Independent drives on 2 or more

wheels• Classifying & dewatering in one

unit• No support structure needed.• Simplicity!

Superior investment