Latest Inventions  Power engineering Synthetic fuels METHOD OF PRODUCTION OF COAL BRICKS
METHOD OF
PRODUCTION OF COAL BRICKS
 FIELD:
processing finely-dispersed high-moisture content coal cleaning products and
coal fines with addition of inorganic binders.
SUBSTANCE: proposed method includes mixing of
coal slime and coal fines with cement and lime followed by additional mixing of
charge at simultaneous selective grinding of its particles for forming secondary
associates at sizes: 6-5 mm, 6-8%; 5-1 mm, 43-45%; 1-0.5 mm, 18-20%; 0.5-0.1 mm,
28-30%; and < 0,1 mm, 0.7-1.1%.
Procedure is completed by heat treatment at
temperature of 120-150 C.
EFFECT: enhanced strength and water resistance of
coal bricks; possibility of placing coal bricks for protracted storage. 1 dwg, 1
tbl
Shuvalov Ju.V.,
Nifontov Ju.A., Ehkgardt V.I., Benin A.A., Nikulin A.N.
Patent number: 2227803
Publishing date: May 25, 2004
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