Low-nitrogen emission submerged combustion type gasifier

• Main Authors: HAN RONGXIN, LIU BO, ZHENG YUANJIE, WU BIN, MENG ZHAOYU, LI CHUNQI
• Format: Patent
• Language: Chinese; English
• Published: 03.05.2022
• Subjects: BLASTING; BURNERS; COMBUSTION APPARATUS; COMBUSTION PROCESSES; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED,LIQUEFIED, OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FLUES; HEAT EXCHANGE IN GENERAL; HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEATING; LIGHTING; MECHANICAL ENGINEERING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTIONRESIDUES; SEPARATION; STORING OF DISTRIBUTING GASES OR LIQUIDS; TRANSPORTING; VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED ORSOLIDIFIED GASES; WEAPONS

The invention discloses a low-nitrogen emission submerged combustion gasifier which comprises a combustor, a combustion chamber, a flue gas distributor, a weir flow box, a heat exchange tube bundle and a water tank, the combustion chamber, the flue gas distributor, the weir flow box and the heat exchange tube bundle are all arranged in the water tank, and a waste gas chimney is arranged at the top of the water tank; an inlet of the combustor is connected with an air pipeline, a combustible gas pipeline and a denitrifying agent pipeline, a denitrifying agent nozzle which sprays downwards is arranged in the combustor, one end of the denitrifying agent pipeline is communicated with the denitrifying agent nozzle, and the other end of the denitrifying agent pipeline is connected with a denitrifying agent storage tank and a stirring type water purification tank; a flue and a denitrification reactor which are communicated in sequence are arranged between the combustion chamber and the flue gas distributor, and two e