| 摘要 |
When separating steam and gas from a stream containing, possibly glue-coated, fibre pulp produced by a refiner, the hot fibre pulp is directly fed from the refiner to a separation cyclone ( 4 ) placed in a drying channel ( 2 ) for drying the fibre pulp. A hot drying air flow having substantially higher temperature, about 160° C., than the fibre pulp is blown through the drying channel so that the separation cyclone is surrounded by the hot drying air flow. The light steam containing fraction separated by the separation cyclone is conducted out of the separation cyclone via an outlet conduit ( 9 ) away from the hot drying air flow, whereas the separated heavy fibre containing fraction is conducted out of the separation cyclone directly into the hot drying air flow that entrains the heady fraction to a drying plant. Energy is recovered from the light steam containing fraction and ecologically harmful substances are separated from the latter. |
