METHOD FOR GRANULATING CALCIUM CHLORIDE HYDRATE, AND CALCIUM CHLORIDE HYDRATE GRANULATION DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress the increase of the using amount of steam in a scrubber and to prevent the need of a large-sized heating means upon the rising of a calcium chloride hydride granulation device.;SOLUTION: Provided is a method for granulating a calcium chloride hydrate by a granulation device where, while fluidizing seed particles with hot wind in a fluidized bed 1, a granulation liquid made of a calcium chloride aqueous solution is fed to produce a granulate. The fluidized bed 1 is connected with a scrubber 19 of cleaning waste gas exhausted from the fluidized bed 1 with cleaning water, and upon the generation of granules, the cleaning water cleaned with the waste gas in the scrubber 19 is directly fed to the fluidized bed 1 as a granulation liquid; meanwhile upon the rising of the granulation device, while cleaning water as a solution and raw material calcium chloride are fed to the scrubber 19 to generate the granulation liquid, the granulation liquid is circulated in the scrubber 19 with a scrubber pump 21, and the hot wind fed to the fluidized bed 1 is exhausted to the scrubber 19 to concentrate the granulation liquid.;SELECTED DRAWING: Figure 1;COPYRIGHT: (C)2017,JPO&INPIT