Title:
METHOD OF DRYING ORGANIC SOLID MATERIAL PARTICULARLY SUCH AS BROWN COAL
Document Type and Number:
Japanese Patent JPS56104995
Kind Code:
A
Abstract:
For drying organic solid materials, such as brown coals, the solid materials are, particularly for the purpose of immediately subsequent briquetting or refinement or gasification, respectively, preheated and introduced into an atmosphere of saturated steam at super-atmospheric pressure and increased temperature. After such a first drying stage (1, 2) operated with saturated steam, the process water formed in this drying stage is separated and the solid materials are at least partially pressure-released and subsequently further dried within an atmosphere of superheated steam at a temperature of at least 200 DEG C. of this steam atmosphere. The steam of this further drying stage (7) is passed along a closed circuit via heat exchangers (10, 11) and brought to or maintained at the required temperature. A portion of the steam passed along a closed circuit, that portion approximately corresponding to the amount of steam having its origin in the water content of the solid materials, is tapped via conduit (12) and used for preheating purposes (FIG. 1).
Inventors:
AROISU JIYANUSHI
FURANTSU UORUFUGAN MEYAA
FURANTSU UORUFUGAN MEYAA
Application Number:
JP16814480A
Publication Date:
August 21, 1981
Filing Date:
December 01, 1980
Export Citation:
Assignee:
VOEST AG
International Classes:
C10L9/08; C10F5/00; F26B7/00; (IPC1-7): C10L5/00; F26B3/00
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