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(11) | EP 1 818 111 A3 |
| (12) | EUROPEAN PATENT APPLICATION |
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| (54) | Device and plant for removing dust from granular materials |
| (57) The present invention relates to a dust removing device for granular material comprising:
a casing (2) delimiting a supply chamber (3) arranged to feed granular material to
be freed from dust, and being formed with an input opening (3a); a dust removing chamber
(4) designed to remove dust from the granular material and in fluid communication
with the supply chamber (3); a disposing chamber (5) for granular material freed from
dust formed with an output opening (5a), thereby allowing an uninterrupted flow of
granular material to be freed from dust to occur between the supply chamber (3) and
the disposing chamber (5); a pressurized washing air supply opening (5b); and a washing
air discharging duct (14); a source (12) of pressurized air; a delivery duct (13)
between the pressurized air source (12) and the pressurized air supply opening (5b);
a return piping (17) between the washing air discharging duct (14) and the washing
air source (12); one or more filters (16) in the return piping; and fluidifying fluid
(6) for the granular material to be freed from dust located in the dust removing chamber
(5), and conveying and dosing arrangment (11, 11a) designed to convey and meter the
granular material to be freed from dust and located between the supply chamber (3)
and the dust removing chamber (5).
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