1results about How to "Stable combustion flame" patented technology

This application discloses a coal gasification pulverized coal co-firing system and method, solving the technical problems of poor ignition and flame stability of pulverized coal as an inert fuel in existing technologies. The coal gasification pulverized coal co-firing system includes a coal gasification pulverized coal bin, a boiler flue gas assembly, and one or more pulverized coal feeding assemblies. The boiler flue gas assembly includes a boiler, a hot primary air branch, and a hot secondary air branch. The boiler has a furnace, a hot primary air inlet, and a hot secondary air inlet. The hot secondary air branch has a first branch and a second branch. The hot primary air inlet is located below the hot secondary air inlet. The pulverized coal feeding assembly includes a pulverized coal feeding pipe, a pulverizer, an air-coal mixer, and a spray gun. The first inlet of the air-coal mixer is connected to the pulverizer, the second inlet of the air-coal mixer is connected to the first branch, and the mixing outlet of the air-coal mixer is connected to the inlet of the spray gun. The outlet end of the spray gun extends into the hot secondary air inlet and is connected to the furnace. This achieves efficient and stable co-firing of coal gasification pulverized coal in a pulverized coal boiler.