separation. Division Solutions

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2 Division Separation Solutions A LEADER IN CENTRIFUGATION The Pieralisi Group provides solutions to all technological problems of solid-liquid and solid-liquid-liquid separation, thanks to the great experience and know-how developed over time in the most important industrial centrifuge markets. Over 40,000 Pieralisi machines and plants are today installed worldwide, being used in a wide variety of centrifugal technology applications, as evidence of the undisputed market leadership of the Pieralisi Group. PRINCIPLES OF THE SEPARATION SYSTEM The decanter is used for the separation of two or more phases of different specific gravity, in particular for the clarifying of liquids in which suspended solids are present. The separation of solids and liquids takes place within a cylindrical/conical rotating bowl, upon the periphery of which the heavier solid phase collects and is continually removed by the internal conveyor. A polyelectrolyte, suitably chosen for its type and specific characteristics, may be added to the product being fed to the machine in order to improve the solidliquid separation. The polyelectrolyte favours the aggregation and thus the easier capture of the solid particles. A polyelectrolyte is not always compatible with products being processed. It is generally used in purification processes for the drying of sludge, but not in intermediate product conversion processes, and even less in the processing of foodstuffs.

3 ESTRATTORI_CENTR_GB_3_ante_2010_IFAT_settembre :27 Pagina 5 A leader in centrifugation STANDARD FEATURES Wear protection incl. Thanks to the electronic interchangeable sintered ROTOVARIATOR device it is tungsten carbide segments possible to: Automatic differential continuously vary the number Two- three-phase design speed variation: of screw revolutions in Conveyor and bowl in - via Rotovariator system relation to the bowl of the - other systems on request. decanter various stainless steels: AISI regulate the torque on the 414, AISI 304 Wear protection of THE ROTOVARIATOR decanter reduction gear to the maximum levels allowed; conveyor coils in tungsten The electronic ROTOVARIATOR this allows to protect is designed and manufactured transmission gears and to (interchangeable) of by the Pieralisi Group and adjust the rate of feed flow to conveyor diffuser patented worldwide for the decanter and/or the application on Pieralisi screw differential speed. carbide Wear protection Fixed differential speed variation OPTIONAL VARIATIONS FOR SPECIAL APPLICATIONS decanter centrifuges of the FP 600, JUMBO, HERCULES, MAMMOTH and GIANT series including already installed decanters. The electronic ROTOVARIATOR can be fitted Conveyor and bowl in AISI to Pieralisi decanter 316/Duplex stainless centrifuges being used for steel both sludge dewatering and Selection of optimum conveyor and bowl design any separation process of a solid from one or two liquids. Rotovariator CROSS SECTION OF THE DECANTER CENTRIFUGE Legenda: 1. Main motor 2. Safety guard 3. Bowl 4. Screw 5. Adjustable ring 6. Rotovariator (patented system) 7. Gear Box 8. Scraper motor (patented system) 9. Solids discharge chamber 10. Feed tube 11. Main frame 12. Cake discharge 13. Centrate discharge 14. Dampers 15. Flushing discharge All parts in contact with the product to be treated are made of stainless steel.

4 Wide Choice of models TECHNICAL FEATURES OF DECANTER CENTRIFUGES Model Main motor power [kw] Rotovariator/ Back Drive power [kw] Bowl diameter Slenderness ratio L/D Hydraulic capacity [l/h] BABY 1 BABY 2 BABY 3 FP600/M FP600 RS/M FP600 2RS/M JUMBO 1 JUMBO 2 JUMBO 3 JUMBO 4 HERCULES 470/2 HERCULES 470/3 HERCULES 470/4 MAMMOTH 570/2 MAMMOTH 570/3 GIANT 2 GIANT 3 GIANT II L GIANT III , , , , , , , , , , , , , , , , , , / ,000 NOTE: Hercules, Mammoth and Giant series decanters are equipped with the Rotovariator system as a standard feature. Model Total length Total width Total height Mass [kg] BABY 1 1, , BABY 2 1, , BABY 3 2, , FP600/M 2,470 1,040 1,425 1,360 FP600 RS/M 2,770 1,040 1,425 1,510 FP600 2RS/M 3,070 1,040 1,425 1,660 JUMBO 1 3,205 2,600 JUMBO 2 3,615 2,950 Decanter centrifuge Giant III JUMBO 3 4,025 3,350 JUMBO 4 4,435 3,700 HERCULES 470/2 3,490 1,580 1,725 2,950 HERCULES 470/3 3,900 1,580 1,725 3,350 HERCULES 470/4 4,310 1,580 1,725 3,700 MAMMOTH 570/2 4,370 1,920 1,970 5,540 MAMMOTH 570/3 5,050 1,920 1,970 6,500 GIANT 2 5,050 2,215 2,220 9,080 GIANT 3 5,510 2,215 2,220 9,900 GIANT II L 6,530 2,400 1,500 10,000 Decanter centrifuge Giant II L GIANT III 5,300 3,000 1,750 11,200

5 Targeted Solutions for every Need A R E A S O F A P P L I C AT I O N Pieralisi decanters with a wide variety of capacities are suitable for a vast range of application areas, such as: Environmental Processes treatment and disposal processes of sludge from municipal and industrial waste water drying of animal slurry drying of biomass thermal sludge drying Chemical Processes production processes involving intermediate or Meat processing end products and integrated recycling and recovery processes processes within HDPE, PVC and PP polymer production production processes for the pharmaceutical and biotech sector minerals and ores production processes production processes for non-fossil fuels, such as biodiesel and ethanol Recycling treatment processes for drilling mud treatment and recovery processes for industrial fluids recycling of polymers and their respective recyclables recycling of service water in industrial processes Oleo-chemistry production processes for oleo-chemistry derivates refining processes for edible vegetable oils, excluding olive oil Mineral- Fuel and Lube Oils Processes purification and conditioning of fuels purification of lube oils treatment and recovery of mineral and fuel oils treatment of slop-oils from refineries and lagoons, of slops from lube oils, of bilge water Animal-Based Products treatment of by-products from the fish-processing and meat-processing industries Food Production processing and recovery of non-liquid food products processing of citrus fruit wine and sugar processing recycling of food-related products Dairy Products and Juices production processes of dairy and cheese products recycling of related waste materials processing of fruit and vegetable juices. Decanter FP 600 RS, a Pharma-modul Decanter centrifuges GIANT for waste treatment Treatment of slop oils

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