Importance

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Abstract

An oxygen-fuel combustor and a method for injecting oxygen and fuel. The oxygen-fuel combustor includes a discharge head unit coupled to a heating furnace and a central supply unit in which, among fuel and primary oxygen, at least the fuel is supplied to the heating furnace. An oxygen supply unit supplies secondary oxygen to the heating furnace. The fuel is injected through a central nozzle unit. Secondary oxygen supplied from the oxygen supply unit is injected through an oxygen nozzle unit. The oxygen nozzle unit includes an accommodation cone part is recessed to decrease in diameter from an entrance. An inclined injection hole part passes through at an incline from the accommodation cone part toward an exit such that the injection direction of the fuel and injection direction of the secondary oxygen cross each other in front of the discharge head unit.

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First Claim