Document Type and Number:
Japanese Patent JPH0154113
Kind Code:
B2
Abstract:
In a non-evaporating dehydration of brown coal, the coal is crushed and classified into lumps and fine particles. The lumps of coal are subjected to a non-evaporating dehydration in which waste water is produced. The waste water is contacted with the fine particles of coal so that components which affect the COD value of the water are absorbed by the coal particles. The coal particles are then burnt to produce saturated steam which is used in the non-evaporating dehydration.
Inventors:
NAKABAYASHI YASUYUKI
MATSURA HIKOO
KURIHARA MICHIO
KAMEI TAKAO
NAKAMURA AKIRA
KOMAI KEIICHI
SHIMOTAMARI AKIRA
WAKABAYASHI TAKESHI
MATSURA HIKOO
KURIHARA MICHIO
KAMEI TAKAO
NAKAMURA AKIRA
KOMAI KEIICHI
SHIMOTAMARI AKIRA
WAKABAYASHI TAKESHI
Application Number:
JP4895181A
Publication Date:
November 16, 1989
Filing Date:
March 31, 1981
Export Citation:
Assignee:
DENGEN KAIHATSU KK
KAWASAKI JUKOGYO KK
KAWASAKI JUKOGYO KK
International Classes:
C02F1/28; C10F5/00
Next Patent: JPH0154114