PREEXPANDERS

NEW SERIES VPX-1500 VPX-3500 VPX-5500
useable volume 1,5 m3 3,5 m3 5,5 m3
capacity :      
12,0 - 12,5 g/l
14,0 - 16,0 g/l
18,0 - 21,0 g/l
22,0 - 25,0 g/l
550 - 850 kg/h
650 - 1000 kg/h
800 - 1300 kg/h
1000 - 1500 kg/h
1 200 - 1 400 kg/h
1 500 - 1 800 kg/h
1 800 - 2 100 kg/h
2 500 - 2 900 kg/h
1 800 - 2 200 kg/h
2 800 - 3 280 kg/h
3 600 - 4 150 kg/h
4 300 - 4 560 kg/h

capacity depends on raw material type and quality !

• Electronic weighing system
• Foaming vessel in conical design with wedge wire base
• Fast material discharge through bottom butterfly door
• Frequency controlled agitator speed
• Fluidized bed with z segment structure drying floor
• Digitally controlled regulation valves for steam and air

Advantages of VIRO´s pre-expander VPX series:
• Wedge wire screens ensure a uniform distribution of steam
• Even density distribution
• Perfect target density repeatability
• Shorter cycle time, compared to traditional systems
• Optimal raw material utilization
• Minimized energy consumption

Options for VPX:
• Density control and weighing system connected at fluid bed dryer
• Second pass unit to handle lowest densities at highest precision
• High density unit for density range from 25g/l to 45g/l
• Heat exchanger linked to wash air blower to heat drying air connected to steam system
• Raw material loading and storage platform, incl. protection handles and staiway
• Energy recuperation system – eliminates exhaust steam over the roof