Natural gas co-firing ammonia burner

A natural gas co-firing ammonia burner, comprising:

• a first gas intake pipe having an air flow channel, a natural gas flow channel, and a mixing flow channel, wherein the mixing flow channel is located downstream of the air flow channel and the natural gas flow channel and has a first spout, and an air flowing out from the air flow channel and a natural gas flowing out from the natural gas flow channel are mixed in the mixing flow channel;
• a second gas intake pipe disposed in the first gas intake pipe and having an ammonia and air flow channel, wherein the ammonia and air flow channel is configured to receive an ammonia and air premix, the ammonia and air flow channel has a second spout, and the first spout surrounds the second spout and is separated from the second spout by a predetermined distance;
• and
• a swirl mechanism disposed in the mixing flow channel and configured to swirl and premix the air and the natural gas.