Recirculation conveying system. The fine and coarse grains of the bed ash are separated by a screening process. The separated hot coarse grain, including unburnt material and impurities, is conveyed by a pan conveyor into containers for disposal. The pan conveyor, which was specially designed for the transport of coarse grain, is characterised by utmost durability and at the same time low-maintenance and energy-efficient operation. An elaborate distribution mechanism arranged above the containers enables maximum and clean filling of the containers. Optimal filling of the containers reduces unnecessary transports, saves resources and thus the environment.

Ash removal. A discharge screw with downstream rotary valve as an air seal removes fly ash from the process. Agglomerates in the fly ash are discharged by means of a screening drum and the fine fraction of the fly ash is transported to a residue silo by pneumatic conveying technology. After intermediate storage, the fine fraction is put to further use. The pneumatic conveying pipe is coated with wear-resistant material, which increases the service life and minimises the otherwise increased repair costs due to the abrasiveness of the product.

CONVEYOR TECHNOLOGY CONSISTING OF

• LASHSCREWCON® - various screw conveyors, including: Twin screw conveyors (water-cooled), trough screw conveyors
• Pan conveyor
• Pneumatic conveying system
• Chain bucket elevator
• Silo with all safety equipment
• Rotary feeders
• Screen drum
• Slide gate valves
• Docking device
• Two-way diverters