ALDEC G2 – Smart Decanter - 2 Pages

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Catalogue excerpts

ALDEC G2 Smart Decanter Shifting the benchmarks The innovative Alfa Laval ALDEC G2 decanter centrifuge design has shifted the accepted benchmarks for dewatering performance, providing an improvement of as much as 30% compared with previous generations of decanter centrifuges. This complete range features a compact, modular design with all critical parts made of wear-resistant materials. The result is reliable, continuous operation and easy, trouble-free process control. Easy to operate, easy to get results The outstanding features of the ALDEC G2 design make it easy to accomplish a wide range of performance targets. • More sludge treated, more efficiently • Greater processing capacity for any given equipment footprint • Better process control • High level of protection against erosion • Low maintenance costs • Low energy consumption • Low life cycle costs • Major savings on sludge disposal Enhancement packages In some cases, the economics of sludge treatment operation can require the addition of one or more special Alfa Laval enhancement packages. You can select between: • enhanced dewatering package – achieve even greater cake dryness and lower sludge disposal costs. • enhanced wear protection package – maintenance costs can be reduced still further by selecting more wear resistant materials. This in turn extends service intervals. • enhanced serviceability package – features that save you time by making both operation and maintenance easier. • enhanced control packages – add-on control systems that provide additional functionality and varying degrees of automation. How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com PEE00027EN 0709 Alfa Laval reserves the right to change specifications without prior notification. Flow rate G-level Cake concentration G2 design Current technology Fig. 1 Shifting dewatering performance parameters, all round. Designation Max. Weight Bowl Other product and Typical Main Typical Back Back drive kg (lbs) Material liquid wetted parts drive Size kW (HP) drive Size kW (HP) control ALDEC G2-40 2200 (4850) AISI 316 AISI 316 15-22 (20-30) 5.5 (7.5) VFD ALDEC G2-50 2400 (5290) AISI 316 AISI 316 15-22 (20-30) 5.5 (7.5) VFD ALDEC G2-60 3800 (8379) AISI 316 AISI 316 18.5-37 (25-50) 7.5 (10) VFD ALDEC G2-70 4200 (9259) AISI 316 AISI 316 22-37 (30-50) 7.5 (10) VFD ALDEC G2-80 5000 (11023) duplex stainless steel AISI 316 30-45 (40-60) 7.5/11 (10/15) VFD ALDEC G2-95 4500 (9900) duplex stainless steel AISI 316 45-90 (60-125) 11/22 (15/30) VFD ALDEC G2-100 7000 (15432) duplex stainless steel AISI 316 37-75 (50-100) 7.5/11 (10/15) VFD ALDEC G2-115 6500 (14300) duplex stainless steel AISI 316 75-160 (100-200) 7.7/30 (20/40) VFD ALDEC G2-120 13000 (28660) duplex stainless steel AISI 316 75-160 (100-250) 11/22 (15/30) VFD ALDEC G2-130 13730 (30200) duplex stainless steel AISI 316 225 (300) 22 (30) VFD ALDEC G2-140 18070 (39750) duplex stainless steel AISI 316 450 (600) 55 (75) VFD Technical Data ALDEC G2-130 7465 mm (295 inch) ALDEC G2-140 7740 mm (306 inch) Max. 1973 mm (78 inch). 3365 mm (133 inch) 3795 mm (150 inch)

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Working principle Separation takes place in a horizontal cylindrical bowl equipped with a screw conveyor. The feed enters the bowl through a stationary inlet tube and is accelerated smoothly by an inlet rotor. Centrifugal forces cause sedimentation of the solids on the wall of the bowl. The conveyor rotates in the same direction as the bowl, but at a different speed, thus moving the solids towards the conical end of the bowl. The ALDEC G2 design enables the hydraulic pressure inside the bowl to enhance scrolling through a narrow opening. This means that only the very driest fraction of the sludge...

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