Patent ID: 8800161

Claim:
A dryer for material to be dried (T) comprising a feeding point ( 9 ) for the material to be dried, a drying region, as well as a delivery point ( 10 ) for the material to be dried (T), wherein an air supply channel ( 4 ) for supplying a drying gas to the drying region is provided, as well as at least one exhaust-gas opening ( 8 ) is provided for removing the drying gas after passing through the drying region, wherein the air supply channel ( 4 ) is surrounded at least in sections at a distance by an outer wall ( 11 ), which has at least one supply opening ( 12 ) for supplying a cooling medium (K) as well as at least one removal opening ( 13 ) for the cooling medium (K), wherein between the at least one supply opening ( 12 ) and the at least one removal opening ( 13 ) a flow section ( 14 ) for the cooling medium (K) is formed between the outer wall ( 11 ) and the air supply channel ( 4 ), and the at least one removal opening ( 13 ) is configured as a through-opening in the air supply channel ( 4 ), which connects the region bounded by the outer wall ( 11 ) to the interior of the air supply channel ( 4 ), wherein the at least one through-opening ( 13 ) is arranged in the upper regions of the air supply Channel ( 4 ) and is configured in such a way as to make it possible for the cooling medium (K) to flow downwards along the inner side of the air supply channel ( 4 ).