| 摘要 |
<p>The present invention relates to a process for drying bulk material in dryer (1,1',1") having a circulation conduit (2), the process having the steps : -generating a flow of a drying medium through the circulation conduit (2), -feeding bulk material (13) to the flow of drying medium (3) in the circulation conduit (2) by an inlet feeding device (5), -drying the bulk material (13) by transferring heat from the drying medium (3), -separating the bulk material (13) from the drying medium by separating means (7), -discharging the bulk material from the dryer (1,1',1"), -supplying a first heating medium (9.4) to a first heat exchanger (9.1;9.1'), -supplying a second heating medium (10.4) to a second heat exchanger (10.1;10.1'), -a first heating step wherein the drying medium (3) is conveyed to the first heat exchanger (9.1;9.1') and is indirectly heated by the first heating medium (9.4), followed by -a second heating step wherein the drying medium (3) is conveyed to the second heat exchanger (10.1;10.1') and is indirectly heated by the second heating medium (10.4). The present invention also relates to a dryer for drying bulk material and a bio energy combine comprising the dryer.</p> |
