Process for producing high concentration coal-water slurry

A high-concentration coal-water slurry of a coal concentration as high as 71 percent by weight at a viscosity of 2,000 cp (at 25 DEG C.) can be produced by first coarsely crushing a starting coal, further pulverizing 95 to 30 percent by weight of the coarsely crushed thus obtained, subjecting the fi...

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Bibliographische Detailangaben
Hauptverfasser:	NAKAOJI, KAZUHIKO, ITOH, HAYAMI, TATSUMI, SHUHEI, KAMAO, MITSUGU, TAKAO, SHOICHI
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	A high-concentration coal-water slurry of a coal concentration as high as 71 percent by weight at a viscosity of 2,000 cp (at 25 DEG C.) can be produced by first coarsely crushing a starting coal, further pulverizing 95 to 30 percent by weight of the coarsely crushed thus obtained, subjecting the finely pulverized coal thus obtained, together with the remainder of the coarsely crushed coal, to crushing in a wet-type crusher, and pulverizing and adjusting the coal particles to a particle size constitution of 20 to 30 percent by weight of 200-mesh size and larger and 80 percent by weight or less of 350-mesh size and smaller.