Process for guiding air for cleaning semolina, as well as semolina cleaning apparatus
AssigneeBuehler AG
InventorRoman Mueller
Life of this patent
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Abstract
A semolina cleaning apparatus allows basic operations as in the prior art with complete visual surveillance of operation, but with an outwardly closed product guidance. In this way, entry and exit of dust is completely prevented during normal operation as well as when removing samples. Accordingly, it is possible to operate an individual apparatus as well as an entire group of semolina cleaning apparatuses with circulating air. The air intake can be effected from above.
Claims15
In a process for guiding air for cleaning semolina, wherein the product is cleaned via a plurality of vibrationably supported sieve layers forming a cleaning section and via product discharges for the sieve tailings and is divided into desired fractions below the sieve layers with a plurality of adjustable outlet sleeves for guiding the sieve siftings into two or more collecting troughs, the improvement comprising the steps of:
- collecting exhaust air from at least two cleaning sections in an air discharge line;
- sucking off the collected exhaust air via a separately arranged aspirator;
- cleaning said sucked-off air and guiding said cleaned air back as feed air via a feed duct below the sieve layers;
- and forming said product cleaning and air feeding elements in outwardly closed passages.
In a semolina cleaning apparatus having a plurality of vibrationably supported sieve layers, a source of vibration, an air feed and air discharge, a product feed and a product discharge for sieve tailings, the improvement comprising:
- a product collecting base being arranged under the sieve layers, said collecting base having a plurality of adjustable outlet sleeves;
- two or more collecting troughs arranged under the collecting base, said adjustable outlet sleeves coupled to said collecting troughs for conveying the sieve siftings to said collecting troughs;
- and
- said product collecting base, said air feed and said sieve layers forming a vibrating unit, and having an outwardly closed sifting space.
Dependencies are inferred from the claim text.