Back to results
US 5,685,709 AGranted
Apparatus for heat treatment of lime sludge
AssigneeFuller Company
InventorSidney M. Cohen
Life of this patent
Estimating the term…
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.
Claims7
An apparatus for the heat treatment of lime sludge to form a burnt lime product therefrom, comprising:
- a. dryer means having a material inlet and material discharge, which dryer means utilizes heated gases for drying lime sludge;
- b. separator means in communication with the dryer means material discharge for separating the dried lime sludge from the heated gases, said separator means having a discharge end through which the separated dried lime sludge exits the separator means;
- c. compacting means in communication with said separator means for compacting separated dried lime sludge into a plurality of substantially uniform bodies of a size suitable for treatment by a shaft kiln;
- d. shaft kiln means for converting the compacted separated dried lime sludge to a burnt lime product;
- and,
- e. conveying means for conveying dried lime sludge from the compacting means to the shaft kiln means.
3 more elements
Dependencies are inferred from the claim text.