Title:
A manufacturing method of solid fuel, and a manufacture device of solid fuel
Document Type and Number:
Japanese Patent JP6275630
Kind Code:
B2
Abstract:
To provide a method for producing a solid fuel that can efficiently evaporate moisture contained in a slurry by enhancing heat exchange efficiency. The method for producing a solid fuel of the present invention includes the steps of: preparing a slurry by mixing powdery low-grade coal and oil; evaporating moisture contained in the slurry by heating; and separating the slurry obtained after the evaporation step into solid and liquid, wherein the evaporation step includes the steps of: preheating the slurry in a first circulation route; and heating the preheated slurry in a second circulation route that is different from the first circulation route. Preferably, in the preheating step and the heating step, a multitubular heat exchanger is used, the heating medium is supplied to the shell side, and the slurry is supplied to the tube side. Preferably, the process steam generated in the evaporation step is used as the heating medium for any one of the preheating step and the heating step, and externally introduced steam is used as the heat medium for the other.
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Inventors:
Kinoshita Shigeru
Yoichi Takahashi
Yoichi Takahashi
Application Number:
JP2014248405A
Publication Date:
February 07, 2018
Filing Date:
December 08, 2014
Export Citation:
Assignee:
KABUSHIKI KAISHA KOBE SEIKO SHO
International Classes:
C10L5/00; C10L5/04; C10L9/10
Domestic Patent References:
| JP2009161681A | ||||
| JP2005206695A |
Attorney, Agent or Firm:
Hajime Amano
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka
Yoshinori Ikeda
Hiroshi Ogawa
Koji Ishida
Kazuki Kagami
Kenichi Fujinaka