Experimental Investigations on Combustion Characteristics of the Blast Furnace Gas

Blast furnace gas emitted from smelting steel production process is harmful to human health and the ecological environment. It can be used as fuel for engines to generate electricity for most middle and small steel enterprises. Premixed laminar combustion experiments of the blast furnace gas-air mixture were performed in the constant volume combustion bomb in this paper. The results indicate that the combustion velocity increases when the equivalence ratio is close to the academic air-fuel-ratio (Phi = 1.0), and the maximum appears at the equivalence ratio of 1.15. Premixed laminar burning velocity of the blast furnace gas-air mixture decreases with increase in the initial pressure, and it increases with rising of initial temperature. An increase of the amount of combustible gas in various components blast furnace gas can augment the numerical value of the laminar burning velocity and help to combustion.