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Title:
INDIRECT HEAT-DRYING DEVICE AND METHOD FOR DRYING LOW-GRADE COAL
Document Type and Number:
WIPO Patent Application WO/2016/084461
Kind Code:
A1
Abstract:
Provided is an indirect heat-drying device comprising first and second indirect-heat-type rotary dryers (1, 2) which each have a heating pipe disposed in a rotating tube (3) that can rotate around a central axis, which dry an article to be dried (W) that is fed into one end side of the inside of the rotating tube (3), which discharge the article from the other end side, and which discharge a liquid component evaporated from the substance to be dried (W) using a carrier gas fed into the rotating tube (3), the indirect heat-drying device configured so that the article to be dried (W) discharged from the other end side of the rotating tube (3) of the first indirect-heat-type rotary dryer (1) is fed into one end side of the rotating tube (3) of the second indirect-heat-type rotary dryer (2) and further dried, wherein a low-oxygen-concentration gas is fed into the rotating tube (3) of the second indirect-heat-type rotary dryer (2) as a second carrier gas (G2), and air is fed into the rotating tube (3) of the first indirect-heat-type rotary dryer (1) as a first carrier gas (G1).

Inventors:
ITO MASAYASU (JP)
KATO ZENJI (JP)
SUWA SATOSHI (JP)
WATANABE KENJI (JP)
Application Number:
PCT/JP2015/076492
Publication Date:
June 02, 2016
Filing Date:
September 17, 2015
Export Citation:
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Assignee:
TSUKISHIMA KIKAI CO (JP)
International Classes:
F26B17/32; F26B21/14
Foreign References:
JP2009097783A2009-05-07
JP2012092989A2012-05-17
JP2005125130A2005-05-19
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
Sumio Tanai (JP)
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