Process for producing high concentration coal-water slurry

Details Process for producing high concentration coal-water slurry Process for producing high concentration coal-water slurry

1986-08-07

1987-11-17

Rosenbaum, Mark

Solid material comminution or disintegration

Processes

With application of fluid or lubricant material

44 51, 241 21, 241 24, 241 29, B02C 1912

Patent

active

047068914

ABSTRACT:
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.degree. 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.

REFERENCES:
patent: 2826370 (1958-03-01), Weston
patent: 3497142 (1970-02-01), Nelson
patent: 3773268 (1973-11-01), Bond
patent: 4265407 (1981-05-01), Kessler et al.
patent: 4274599 (1981-06-01), Maneroy et al.
patent: 4282006 (1981-08-01), Funk
patent: 4288166 (1981-09-01), Nakabayashi et al.
patent: 4498906 (1985-02-01), Scheffee

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