Process for the dewatering of coal and mineral slurries

Details Process for the dewatering of coal and mineral slurries Process for the dewatering of coal and mineral slurries

1996-05-21

1998-06-30

Bennett, Henry A.

Drying and gas or vapor contact with solids

Process

By centrifugal force

34320, 34326, 2103601, 210787, F26B 508

Patent

active

057716013

ABSTRACT:
Coal or other mineral slurry is dewatered by establishing a bed of the slurry and injecting a gas stream such as air into the bed to establish turbulent flow to strip moisture. This slurry may use particles in the range 0.5 mm to 30 mm with air injected at about 10 m/sec, and suitable novel apparatus includes a centrifuge or a vibratory conveyor with a closed tunnel and transverse air flow for stripping moisture.

REFERENCES:
patent: 4000074 (1976-12-01), Evans
patent: 4101263 (1978-07-01), Lumpkin, Jr.
patent: 4130945 (1978-12-01), Brachthauser
patent: 4565015 (1986-01-01), Hundley, III
patent: 4594793 (1986-06-01), Carlson
patent: 4961722 (1990-10-01), Taylor et al.
patent: 5561916 (1996-10-01), Willgohs
patent: 5604994 (1997-02-01), Annen et al.

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