Nitride ceramic ammonia gas tail gas treatment system and treatment method thereof

The invention discloses a nitride ceramic ammonia gas tail gas treatment system and a treatment method thereof. The structure comprises a nitriding furnace, a pipeline fan, a hearth and an ammonia gaspreheating pipeline. A gas inlet of the nitriding furnace is connected with an ammonia gas pipeline. A gas outlet of the nitriding furnace is connected with a connecting pipeline. The pipeline fan isarranged on the connecting pipeline, the other end of the connecting pipeline is connected with the ammonia gas preheating pipeline. A catalyst is arranged in the ammonia gas preheating pipeline, theother end of the ammonia gas preheating pipeline is connected with a nitrogen-hydrogen mixed gas pipeline, the hearth is provided with a combustion pipeline, the nitrogen-hydrogen mixed gas pipelineis connected with the combustion pipeline, the combustion pipeline is connected with a natural gas source, the combustion pipeline is provided with a plurality of combustion openings, and an exhaust pipeline is arranged in the m