公开(公告)号：US20170248365A1

公开(公告)日：2017-08-31

申请号：US15596123

申请日：2017-05-16

Applicant: TSUKISHIMA KIKAI CO., LTD

Inventor： Masaki Kataoka ,  Satoshi Suwa ,  Keisuke Matsuda

IPC: F26B11/04 ,  F26B17/32

CPC classification number: F26B17/32 ,  F26B11/0404 ,  F26B11/0409 ,  F26B11/0445 ,  F26B11/045 ,  F26B2200/02 ,  F26B2200/24

Abstract: Provided is an indirectly heating rotary dryer which has achieved enhanced energy-saving performance by reducing heating tubes non-contacting with material to be dried and reducing power required for rotation even when a hold up ratio is increased.Specifically provided is an indirectly heating rotary dryer having four partition walls 16 extended respectively along an shaft center C in an inner space of a rotating shell 10 at angle intervals of 90 degrees in the vertical and horizontal directions. The four partition walls 16 partition the inner space of the rotating shell 10 at a lateral section of the rotating shell 10 into four approximately-sector-shaped small spaces K respectively extended along the shaft center C. Heating tubes 11 are aligned in the rotating shell 10 in three lines extended respectively in parallel to the shaft center C of the rotating shell 10. The heat tubes 11 heat and dry the material H to be dried by supplying heated steam to the heating tubes 11 and performing heat exchange with the material H to be dried in the rotating shell 10.

公开(公告)号：US10088231B2

公开(公告)日：2018-10-02

申请号：US15596123

申请日：2017-05-16

Applicant: TSUKISHIMA KIKAI CO., LTD

Inventor： Masaki Kataoka ,  Satoshi Suwa ,  Keisuke Matsuda

IPC: F26B17/32 ,  F26B11/04

Abstract: Provided is an indirectly heating rotary dryer which has achieved enhanced energy-saving performance by reducing heating tubes non-contacting with material to be dried and reducing power required for rotation even when a hold up ratio is increased.Specifically provided is an indirectly heating rotary dryer having four partition walls 16 extended respectively along an shaft center C in an inner space of a rotating shell 10 at angle intervals of 90 degrees in the vertical and horizontal directions. The four partition walls 16 partition the inner space of the rotating shell 10 at a lateral section of the rotating shell 10 into four approximately-sector-shaped small spaces K respectively extended along the shaft center C. Heating tubes 11 are aligned in the rotating shell 10 in three lines extended respectively in parallel to the shaft center C of the rotating shell 10. The heat tubes 11 heat and dry the material H to be dried by supplying heated steam to the heating tubes 11 and performing heat exchange with the material H to be dried in the rotating shell 10.