References include grain silo suction. The extraction was implemented using three filtration units that extract the lower conveyor path, the upper conveyor path and the clarifier. The filtration units are in explosive dust extraction design and are equipped with automatic regeneration of the filter media by means of a counter-current of pressurized air. The power of the extraction fans is regulated by frequency converters depending on the vacuum in the suction line. 

• 3x filter units
• Suction of lower grain conveyor paths
• Suction of upper conveying paths and silo filling
• Aspiration of the grain cleaner.
• Total suction capacity: 40 000 m3/h
• ATEX design of the filter units
• Automatic power control