| 摘要 |
The invention relates to a device for cooling bulk products, such as a device comprising a drum rotatably mounted on the axis thereof, said drum containing perforations distributed on the cylindrical lateral wall thereof in whole or in part. Additionally, the device comprises a motor for driving said drum and a thermally insulated chamber of elongate form along the axis of said drum and enveloping said drum, and means (2) for cooling products, for example products for injecting a cryogenic fluid into said chamber. The invention is characterised by the implementation of the following measures: - the device additionally comprises at least one ramp (3) for projecting a liquid cryogen, an additional ramp located inside the chamber opposite a portion of the drum wall located in the area where products enter the drum, - this additional projection ramp is capable of directing the liquid cryogen to said portion of the drum wall and through this portion of the wall, via said perforations, to the products that enter the drum. |
