JT.006.10.040 pages

Thermal Processing technology
PERFORMANCE
in
mo t i on
JT.006.10.04.EN
Bed Ash Cooling in FBC plant
Ville-Berrenrath
Application and Mode of Operation:
Specifications:
Cooling of bed-ash by hot-ash dosing lock and cooling vibratory
feeder describes our new system for cooling of bed-ash. The advantages of the new system are especially the simply and flexible
construction as well as the excellent accessibility for inspections.
The hot ash dosing lock is connected with the ash discharge pipe,
so that the extension of the boiler is compensated. All other components are installed on the floor. The extension takes place between
the hot ash dosing lock and the cooling vibratory feeder. The sealing
at this place effects by a heat-resistance fabric compensator.
The hot ash is fed to the cooling vibrating conveyor in dosed
quantities and passes through a coarse screening section in order
to separate particles > 15 mm. Coarse particles are conveyed
sideways without cooling. Following coarse screening the ash
stream is passed to a cooling element located in the trough of
the vibrating conveyor and is cooled here during transport through
the conveyor trough. Cooling water flows through the cooling element, the structural shape of which takes into account the high
abrasiveness of the ash layer. In particular no built-in components
transverse to the direction of transport in the product stream have
been used. The high requirements set on service life and quick
maintenance and repair times have also been considered by using
a modular construction. After easy dismantling of the cover the
coarse one-piece screening section and the cooling element can
be quickly removed for repair or replacement.
Product: ttt
Feed quantity: tt
Mesh size: tt
Intake temperature: t
Discharge temp.: tt
Machine type: tt
Length: ttt
Width: ttt
Drives: ttt
Cooling area: tt
Cooling water flow: tt
Bed Ash from FBC-plants
1.250 kg/h
d50 = 220 μm / max. d = 40 mm
850 °C max.
£ 130 °C
FUFK
4.500 mm
500 mm
2 x JV 156-330 mit je 0.95 kW
6.48 m2
20 t/h (< 25 °C, 4.0 bar)
Your benefit:
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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 · info@joest.com · www.joest.com