Patent ID: 7824179
Filing Date: 2010-11-02
Classification: F23C,F23D,F23K,F23L,Y02E

Abstract:
1. An apparatus for feeding fuel having a nozzle for feeding the fuel (F), a furnace for generating a combustion gas and/or steam supply means for supplying steam, said apparatus further comprising: a fuel mixing device for mixing fuel (F) from said nozzle with combustion gas extracted from said furnace and/or steam from said steam generator; a combustion area fluidly connected to said nozzle and said furnace and/or steam generator, and means for mixing fuel gas with combustion air supplied to said combustion area; fuel gas injection port for introducing a mixed fluid from said fuel (F) with said combustion gas and/or steam into said combustion area as a fuel gas to mix the fuel gas with combustion air supplied to said combustion area; wherein said fuel mixing device has a mixing area for mixing said fuel (F) with said combustion gas and/or steam and the fuel and the combustion gas and/or steam are introduced into said mixing area for producing said fuel gas to be introduced into said combustion area; wherein the apparatus further comprises combustion gas cooling means for cooling said combustion gas and heating means for heating said combustion gas and/or steam, wherein said mixing area is positioned between said cooling means and said heating means; and wherein said cooling means and heating means are provided with a regenerator which is in heat transfer contact with said combustion gas at a high temperature so as to effect heat accumulation, and which is in heat transfer contact with said mixed fluid so as to effect heat emission.