Combustion system for increasing denitration inlet smoke temperature by adopting small-air-volume air distribution in cold start of boiler

The utility model belongs to the field of boiler combustion technology utilization, and particularly relates to a combustion system adopting small-air-volume air distribution to increase denitration inlet smoke temperature in boiler cold start, which comprises a hearth, a small-air-volume air supply component and a tail flue are arranged on the hearth, and a hot smoke supply system and a control system are further arranged on the tail flue. According to the utility model, the problems that large-air-volume air distribution is adopted and the temperature of the flue gas at the SCR denitration inlet is low in the cold-state starting of the current pulverized coal boiler are solved, a technical route is provided for the cold-state starting mode of the pulverized coal boiler in the future, and the cold-state starting device has very high scientific research value and popularization value of units of the same type. 本实用新型属于锅炉燃烧技术利用领域，尤其涉及一种锅炉冷启中采用小风量配风提升脱硝入口烟温的燃烧系统，包括炉膛，所述炉膛上设置有小风量给风组件和尾部烟道，所述尾部烟道上还设置有热烟气供给系统，还包括控制