| 摘要 |
PURPOSE:To promote combustion of major fuel and provide an efficient denitration with auxiliary fuel by a method wherein a system for supplying fine powder coal is divided into two systems, a major fuel injection port is inclined outwardly from an axis of a combustion device and auxiliary fuel is injected in an axial direction. CONSTITUTION:A system for supplying fine powder fuel is divided into two systems, i.e. one for major fuel 1 and the other for auxiliary fuel 5, the major fuel injection port 4 is inclined outwardly from an axis of the combustion device, a fine powder coal arranging plate 3 is arranged to cause the auxiliary fuel to be injected axially and at the same time, as transporting flow of the auxiliary fuel into the furnace 11, mixture gas of air of low oxygen concentration and exhaust gas is applied so as to restrict the oxidating combustion reaction near the outlet port of the combustion device and at the same time the auxiliary fuel is applied with a force for causing the fuel to be reached in a far away distance so as to supply the fuel to a combustion area where the efficient denitration reaction for the auxiliary fuel is performed. |
