PFISTER DRW: Easy maintenance fuel dosing for optimal burning
Highly accurate fuel dosing for your pulverized fuels
Accurate fuel dosing can be the difference between your process burning too fast and just right. Between fuel economy and high fuel costs. Between optimum production levels and failing to meet your targets. The PFISTER DRW rotor weighfeeder is designed for the utmost accuracy. Equipped with ProsCon® advanced weighing technology, the rotor weighfeeder is able to automatically adapt the rotor speed based on automatic information about the rotor loading and material density. The more material, the slower it moves, ensuring the feed rate is always consistent. The complete PFISTER® DRW system comprises extraction of the material from the storage silo/hopper, weighing, dosing and material transfer into the pneumatic conveying line that feeds the burner. You can’t afford downtime in a system like this, so we’ve created a simple design that ensures minimal moving parts and high availability. All measuring parts and drives are accessible from the outside so maintenance is easy and safe. Feed rates of up to 50 tonnes per hour are possible.
Proactive control for consistent, accurate and reliable fuel dosing
Automatic gap adjustment with AutoGAP 2.0
Is your alternative fuels rate increasing?
PFISTER® Smart Aeration for DRW rotor weighfeeders
The PFISTER® DRW rotor weighfeeder is designed for dosing pulverised fuel, such as lignite, coal dust, petcoke or oil shale. But all PFISTER rotor weighfeeders use the same weighing and dosing principle. Material is extracted from the storage silo and transported in the rotor chambers from the inlet to the outlet. The rotor body is mounted on bearings, which form a weighing axis eccentric to the rotor shaft and through the middle of the inlet and outlet. A load cell weighs the content in the rotor gravimetrically, providing the bulk material mass in kilograms and this is stored together with the relative rotor wheel position. The rotor speed is controlled accordingly – more material, less speed; less material, more speed. The rotor weighfeeder then discharges the material at the outlet.