Decoupling burner unit and decoupling burning device for tangential pulverized coal and burning method

• Main Authors: YAN RUNSHENG, HAO JIANGPING
• Format: Patent
• Language: Chinese; English
• Published: 04.01.2019
• Subjects: AIR; BLASTING; COMBUSTION APPARATUS; COMBUSTION PROCESSES; HEATING; LIGHTING; MECHANICAL ENGINEERING; METHODSOR APPARATUS FOR COMBUSTION USING FLUID FUELOR SOLID FUEL SUSPENDED IN; WEAPONS

The invention discloses a decoupling burner unit and a decoupling burning device for tangential pulverized coal. The unit comprises multiple primary air spray ports, multiple bottom secondary air spray ports, multiple middle secondary air spray ports, multiple layers of upper secondary air spray ports and multiple burnout air spray ports. The primary air spray ports are arrayed in the up-down direction; the middle secondary air spray ports comprise multiple spray ports formed among the primary air spray ports; the bottom secondary air spray ports are formed under the primary air spray ports atthe lowest layer, the upper secondary air spray ports are continuously formed over the primary air spray ports at the topmost layer, and one or more layers of burnout air spray ports are formed abovethe upper secondary air spray ports; the through-flow cross section of outlets of the middle secondary air spray ports accounts for 20-60% of the sum of the through-flow cross section of outlets of all the middle secondary ai