Lime sludge treatment process

Details Lime sludge treatment process Lime sludge treatment process

1993-10-12

1994-10-11

Bell, Mark L.

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106738, 106745, 106793, 423175, 423177, 264333, C04B 2822

Patent

active

053543750

ABSTRACT:
Disclosed is a method and an apparatus for the heat treatment of lime sludge (CaCO.sub.3) to form burnt lime (CaO). In the method of the present invention lime sludge is dried in a gas dryer means, to produce a dried lime sludge. The dried lime sludge is separated from the gases and thereafter is first fed to a compacting means wherein it is compacted into a plurality of substantially uniform bodies which are thereafter fed to a shaft kiln in which the compacted dried lime sludge is converted to active burnt lime.

REFERENCES:
patent: 2232834 (1941-02-01), Ahlmann
patent: 3203761 (1965-08-01), Neuville
patent: 4098871 (1978-07-01), Schoppe
patent: 4606722 (1986-08-01), Olauson
patent: 4852269 (1989-08-01), Glorioso
patent: 4952147 (1990-08-01), Boyden, II et al.
patent: 4993942 (1991-02-01), Boyden, II et al.

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