| 摘要 |
The invention relates to a device (10) for puffing grains (19), especially cereals and pulse, comprising a heating device (12) for preheating the grains (19) and a puffing reactor (14) for puffing the grains (29). In order to ensure brief, effective and even heating of the grains, the heating device (12) has a free jet fluidized bed (16) with no inflow bottom, in which a batch of grains (19) to be heated is exposed to a heat-conducting gaseous medium (25) during a batchwise preheating process in synchronization with the puffing process. |
