Aspiration (conveyor technology)

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The aspiration (Latin: aspirātiō, sucking aspirare =) is a necessary component of the pneumatic conveyance . In addition, aspiration is required in almost all mill systems. The Lübeck industrial pioneer Wilhelm Beth is regarded as a pioneer in industrial dedusting . In a grain mill , aspiration fulfills the following important tasks from receiving the grain to loading the flour:

• Vacuum cleaner in many machines and removal of flour or dust (air pollution and dust deposition are avoided)
• Prevention of dust escaping from machines and systems (conveyors, pipes, etc.)
• Heat and moisture should be removed from grinding machines or drying systems
• Functional support for some cleaning machines (e.g. dry stone separators , ascending separators , cleaning machines, etc.)

An aspiration thus serves safety (prevention of dust explosions ), hygiene (condensation and mold) and economy.

Aspiration systems usually consist of:

• a central filter
• pipelines going therefrom to all necessary suction points
• a centrifugal fan (downstream)

The term "aspiration" is also used in grain accounting for B. to record the dusty additions in grain maize. See also stocking (grain) .

literature

• Karl Ulmer: Machine Science Milling: Flour Milling - Peeling Milling - Feed Production - Special Milling , 540 pages, Swiss Vocational Training Commission for Millers, Zollikofen, 2009