| 摘要 |
PROBLEM TO BE SOLVED: To provide a dryer with impellers in which crushing and stirring functions and a drying function for various substances to be dried can be improved remarkably by performing crushing, stirring and heated-air drying in the state where feed blades or return blades for crushing, stirring and heated-air drying successively and iteratively appear and wave for each small phase deviation.SOLUTION: In a dryer with an impeller, at least two rotary shafts which are rotated reversely to each other are disposed in parallel in a length direction inside of a casing. In each of the rotary shafts, a plurality of impellers are fixed with a predetermined interval interposed therebetween. Between impellers of one rotary shaft, an impeller of the other rotary shaft is placed, such that the impellers are disposed in a zigzag state. A feed blade and a return blade are provided at an outer edge of a notched part in each rotary shaft, and appearance positions of the feed blade and the return blade in an apex are disposed while successively deviating phases in the state where the adjacent positions form an acuate angle each other in the same longitudinal direction of rotation. |
