Patent ID: 8440164

Claim:
A method for adding lime to a water flow through of a plant comprising plural slakers for batchwise slaking of burnt lime, the method comprising: after slaking burnt lime in a first slaker, emptying completely slaked and diluted lime slurry from the first slaker, until a predetermined amount of residual slurry is reached, which residual slurry is used for mixing with a next batch of burnt lime in the first slaker; after slaking burnt lime in a second slaker and when the first slaker has finished emptying, emptying completely slaked and diluted lime slurry from the second slaker, until a predetermined amount of residual slurry is reached, which residual slurry is used for mixing with a next batch of burnt lime in the second slaker; after an emptying of a slaker, flushing the emptied slaker with water; and after a flushing of a slaker, slaking a next batch of burnt lime in the flushed slaker.