Title:
METHOD AND APPARATUS FOR DRYING LOW GRADE COAL
Document Type and Number:
Japanese Patent JPS61250097
Kind Code:
A
Abstract:
Low-rank coals, such as lignite, are dried by evaporating interstitial water therefrom in a superheated steam flow countercurrently passed through a sealed rotary cylindrical vessel. A composite steam discharged from the vessel is partially condensed to remove an amount of water therefrom substantially equal to the amount of water removed from the coal, with a resultant flow of residual steam reheated and returned to the cylindrical vessel for further drying of low-rank coal.
Inventors:
ROBAATO DOREIPAA
ROBAATO UENDERU UORUFUE
ROBAATO UENDERU UORUFUE
Application Number:
JP9779986A
Publication Date:
November 07, 1986
Filing Date:
April 25, 1986
Export Citation:
Assignee:
WESTINGHOUSE ELECTRIC CORP
International Classes:
F26B17/32; C10F5/00; C10L9/08; F26B3/04; F26B11/02; F26B23/00; (IPC1-7): C10L9/08; F26B17/32
Attorney, Agent or Firm:
Koichiro Kato
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