Precipitate Removal System and Precipitate Removal Method

Abstract

The precipitate removal system of the present invention comprises: an ammonia gas pipeline connected to an ammonia gas outlet at the top of a distillation column for recovering ammonia from ammonia water, for supplying ammonia gas flow; and a collection section disposed on the ammonia gas pipeline for collecting precipitates formed from ammonia gas. The ammonia gas pipeline includes a supply port and a discharge port of a hot fluid containing water vapor or water, disposed in the direction of ammonia gas flow within the ammonia gas pipeline, with at least a portion of the collection section between the supply port and the hot fluid outlet.

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