NARA Boono Cooler (NBC) is an indirect heating type cooler for powder materials, with single or double agitating shafts. Each agitating shaft is arranged with numbers of NARA specially designed agitating wings. Each shaft and wing are jacketed.
Powders fed into the Boono Cooler are mixed well by the agitating shafts and are cooled by being in contact with the trough and agitating shafts, in which the coolant media is flowing.
Boono Cooler can be used not only as a cooler but also as a heating (sterilization, drying) device by using hot water, hot oil, or low-pressure steam as a heating media.
|Heat transfer area [m²]||2.8||5.1||8.4||11.4||15.7||21.0||26.2||31.3||41.8||52.3||60.5||70.8||79.8||89.0||100.8||119.5||141.8|
|Effective volume [m³]||0.073||0.296||0.477||0.628||0.946||1.25||1.52||2.38||3.09||3.80||5.41||6.22||6.88||7.69||10.3||12||13.6|
|Paddle wing [mm]||160||500||500||500||500||500||500||700||700||700||900||900||900||900||1100||1100||1100|
|Rotating speed [min-¹]||30||17||17||17||17||17||17||13||13||13||10||10||10||10||9||9||9|