Thermal Processing technology PERFORMANCE in mo t i on JT.004.10.04.EN Bed Ash Cooling in FBC plant Elberfeld Application and Mode of Operation: Specifications: Bed ash in FBC plants (FBC = Fluidised Bed Combustion) is predominantly cooled by means of cooling screws. Faults can easily arise in complicated conditions of use and the inspections and repairs are often extensive and time-consuming. Machine type: Length: Width: Cooling area: Drives: Product: Mesh size: Feed quantity: Input temperature: Output temperature: (Output temperature: The particular advantages of our system are particular the simple, adaptable construction and easy accessibility during inspections. In the year 2002 a bed ash removal system with cooling vibrator channels and hot ash metering valves was installed at an FBC operator in Germany (WSW - Wuppertaler Stadtwerke AG). Another operator installed several bed ash removal systems to extend his existing bed ash removal system in 2004. A device for screening coarse ash was integrated into both plants. The hot ash metering valve is connected to the ash chute and is therefore involved in the boiler expansion. The other components are set up on the ground. There is a difference in movement between the hot ash metering valve and the cooling vibrator channel. This spot is sealed by means of a heatresistant fabric expansion joint. The installation shown here consists of 2 lines per boiler, each with a hot ash metering valve, cooling vibrator channel and a water-cooled spiral elevator for both lines together for cooling to the final temperature and for simultaneous vertical conveyin FUFK 600 x 3000 3.000 mm 600 mm 5.3 m2 2 x JV 156-330, each 0.95 kW Bed ash from FBC plants 0.2 - 1.0 mm 2.500 kg/h 750°, a maximum of 850° < 300° after the FUFK < 130° after WUFW) Your benefit: • • • • • • • Simple modular construction Quick replacement of the cooling element Integrated coarse ash sifting High cooling performance with low spatial requirements Reliable operation even for different ash compositions Flexible machine version for varying throughput and cooling capacities, can also be combined with other vibratory machines e.g. water-cooled spiral elevators Easy integration into existing plants JÖST GmbH + Co. KG · Gewerbestraße 28 - 32 · D-48249 Dülmen-Buldern Telefon +49 (0)2590 98-0 · Telefax +49 (0)2590 98-101 · [email protected] · www.joest.com