Aspiration (conveyor technology)
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