Denitration device of coal-fired power plant

• Main Authors: SI FENGSHAN, LI SHENGCHANG, YAO KAI
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2020
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The utility model relates to the field of tail gas treatment of coal-fired power plants, and particularly discloses a denitration device of a coal-fired power plant, which comprises settling chambers,smoke inlets and smoke outlets of the three settling chambers are connected through a plurality of connecting pipes, and the smoke inlet of the first settling chamber is connected with a smoke exhaust pipe of a coal-fired boiler through a plurality of connecting pipes; bag openings of the three dust collecting bags are detachably mounted at the dust discharging openings of the settling chambers respectively; the ammonia spraying grid and the SCR denitration device are sequentially arranged in the second horizontal pipeline, and the ammonia spraying grid is connected with the ammonia gas preparation system through a first control valve; the NOx monitor is used for monitoring the content of NOx in the flue gas entering the first horizontal pipeline; and the PLC is connected with the NOx monitor and the first contro