Ammonia water recycling process suitable for SNCR (selective non-catalytic reduction) process

The invention relates to an ammonia water recycling process suitable for an SNCR (selective non-catalytic reduction) process, and belongs to the technical field of flue gas treatment, the ammonia water recycling process comprises an ammonia water storage tank, a kiln, a waste heat recovery section, an ammonia gas absorption section, a chimney, an ammonia water concentration section and an ammonia water filtering section, and the improved parts are the waste heat recovery section, the ammonia gas absorption section, the ammonia water concentration section and the ammonia water filtering section. The waste heat recovery section comprises a waste heat boiler, heat of high-temperature mixed smoke is converted into heat of water vapor through the arrangement of the waste heat recovery section, and heat energy is saved; the ammonia gas absorption section comprises a plurality of groups of absorption towers, and ammonia gas in the mixed smoke is transferred into water to form ammonia-containing water by utilizing th