Apparatus for heat treatment of lime mud

Details Apparatus for heat treatment of lime mud Apparatus for heat treatment of lime mud

1991-02-05

1992-05-05

Yuen, Henry C.

Heating

Tumbler-type rotary - drum furnace

Having combustion products generated in or fed to drum

432 14, F27B 702

Patent

active

051102897

ABSTRACT:
In the heat treatment of lime mud, the lime mud to be introduced to a lime reburning kiln is dried in a penumatic drier by flue gases from the lime reburning kiln in order to regenerate the lime contained in the mud. Prior to drying, the lime mud is thickened in a drying filter to a dry solids content of over 75%, preferably to approximately 80%. In this way, the lime reburning kiln can be made approximately 30% shorter than conventional kilns, and the apparatus is simpler than the conventional apparatus provided with a pneumatic drier.

REFERENCES:
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patent: 4321239 (1982-03-01), Bildjukevich et al.
patent: 4457705 (1984-07-01), Ramesohl et al.
patent: 4932862 (1990-06-01), Kettenbauer
John H. Perry, Chemical Engineer' Handbook, Fourth Edition (1963), McGraw-Hill Book Co., pp. 20-54 through 20-57.

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