Flue gas denitration device with temperature regulating function

• Main Authors: SHEN JIANSHAN, ZHAO HUAPING, WANG FENGBO, ZHOU FUYUN
• Format: Patent
• Language: Chinese; English
• Published: 19.04.2019
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention relates to a flue gas denitration device with a temperature adjusting function, which comprises a denitration reactor, a flue gas pipeline, an exhaust pipeline, a waste heat recovery unit, a urea solution adding unit, a reflux pipeline and a driver, wherein the exhaust pipeline is connected with the outlet end of the denitration reactor; the outlet end of the exhaust pipeline is provided with an exhaust branch and a recovery branch; the waste heat recovery unit is connected between the denitration reactor and the exhaust pipeline; the inlet end of the reflux pipeline is connectedwith a recovery branch of the exhaust pipeline; and the outlet end of the reflux pipeline is connected with the flue gas pipeline. According to the flue gas denitration device with the temperature adjusting function, the temperature of flue gas before entering the denitration reactor is reduced to 450 DEG C by mixing returned clean flue gas, non-denitration flue gas and urea solution, so that flue gas can be suitable for