Drying equipment for unthreaded band (especially paper band) comprises a band, radiating elements heated with gas on one side and at least one cross convective system comprising a suction and blowing tools

摘要

Drying equipment (1) (I) for an unthreaded band (2) especially for a paper band comprises: a band, radiating elements (3) heated with gas arranged according to at least one row (4) spreading in the cross direction (5) of the band substantially on entire width one below the other to a row of radiating elements on one side; at least one cross convective system comprising the suction and blowing tools (8). Drying equipment (I) for an unthreaded band especially for a band of paper comprises: at least a band, radiating elements heated with gas arranged according to at least one row spreading in the cross direction (5) of the band substantially on entire width one below the other to a row of radiating elements on one side; at least one cross convector system comprising the tools of suction and blowing (to exhaust at least a part of the combustion product inherited from the radiating elements and for blowing the part of the combustion product towards the band), which comprises at least one bracing part (12) arranged opposite to the unthreading band with respect to corresponding sheaths of suction (13) and of blowing (14) which spreads at least in the cross direction of the band and arranged in a such a way to suck and/or to blow the combustion product, where the vectorial average of projections (V1, V2, V3, V5, V6, V7, V8) on a perpendicular plane (P1) to the band and spreading in the cross direction of the band represents the respective path of different casts of exhausted and/or blown combustion products having a component (V4) parallel to the band which is approximately less than the width of the band (preferably less than half of the width of the band).