The Pfister DRW is a Rotor weighfeeder especially designed for dosing pulverized fuels such as petrolcoke, lignite, coaldust or oil shale in cement burning processes. Integration of material extraction, weighing, dosing and material transfer into the pneumatic conveying line makes it a compact system that provides accuracy and constancy. Powered by the innovative dosing strategy ProsCon®, the mass flow is controlled in advance.
Pfister DRW + ProsCon®:
The innovative solution for metering pulverized fuels

Application fields: Kiln, calciner, hot gas generator (HGG), firing process
Fuels: Petrolcoke, coaldust, lignite, oil shale
Dosing capacity: Up to 50 t/h with only one system possible
Design:
• Stainless steel silo cone
• Silo cone aeration
• Shut-off gate
• Star feeder
• Flexible joints
• Calibration pre-hopper
• Rotor weighfeeder Pfister DRW
Features:
• Stable fuel dosing
• Outstanding reliability
• High short- and longterm accuracy
• Compact, simple and modular design
• Explosion-proof
• In-line blending of a number of fuels into
the common feeding line possible
• Large feeding range
• Online calibration during operation
• Up to 4 systems under one coal silo possible
• Slowly moving rotor
• Easy to maintain
Dosing control:
• Can System Controller CSC
• Prospective Control ProsCon®
• Remote service access available
Certificates:
ATEX (94/9/EC) in categories II1/2D
and II1/3D, ISO 9001:2008