Patent ID: 6601317
Filing Date: 2003-08-05
Classification: F26B

Abstract:
A high-efficiency drying kiln comprising:at least one internal chamber, which is covered with thermally insulating material and is provided with at least one opening for loading and extracting a material to be treated, at least two flues for recirculation of the air inside said chamber by aspirating and delivering air respectively from and into the outside environment, at least one air heating device, at least one air acceleration duct arranged downstream of said air heating device, and air acceleration means located inside said acceleration duct; wherein said air acceleration duct has, at least at its output section, means for orienting in an axial direction an air stream that is forced by said acceleration means, said orienting means comprising a plurality of fins which are arranged in a grille pattern, so as to split the air stream downstream of said acceleration means into a plurality of parallel laminar portions.