Belt dryer with a drying zone and a cooling chamber

摘要

Belt dryer with a drying zone (01) and with a cooling chamber (16), the drying zone (01) presenting several drying chambers (12; 13; 14) arranged successively and the cooling chamber being arranged ( 16) following the last drying chamber (14), characterized in that at least partially heated air is supplied to one of the drying chambers (12; 13; 14), arranged in front of the cooling chamber (16) of the cooling chamber (16) by means of an air exhaust channel (21), at least part of the exhaust air to be evacuated from one of the drying chambers (13; 14) being supplied through a channel of air exhaust (28; 31), to the drying chamber (12; 13) arranged directly in front of the respective drying chamber (13; 14), the exhaust air being introduced, heated in the drying chamber ( 14) arranged directly in front of the cooling chamber (16), in the drying chamber (13) arranged directly in front of this drying chamber (14) through a separate junction channel (28), the separate junction channel (28) being configured as a return channel that is attached only to the drying chamber (14) , arranged directly in front of the cooling chamber (16), and in the drying chamber (13) arranged in front of this drying chamber (14).