Abstract

A heat-resistant fuel activation substance is affixed to a combustion device such as a boiler in an adequate manner, that is, the substance is affixed in an adequate position over an adequate area, whereby the effect of activating combustion is rapidly, stably, and inexpensively produced.   A heat-resistant fuel activation substance having a spectral emmisivity of 0.85 or higher at electromagnetic wavelengths in the range of 3-20 µm is affixed to a combustion device so that the heat-resistant fuel activation substance is disposed in a position which is located outside or inside the combustion chamber at the back of the flame-generating portion of the burner and rises to at most 300ºC in temperature and that the substance occupies at least 50% of the area of the projected part of the combustion cone.

IPC Classes  ?

• F23K 5/08 - Preparation of fuel
• F23C 99/00 - Subject matter not provided for in other groups of this subclass
• F23D 99/00 - Subject matter not provided for in other groups of this subclass
• F23K 1/00 - Preparation of lump or pulverulent fuel in readiness for delivery to combustion apparatus
• F23K 5/00 - Feeding or distributing other fuel to combustion apparatus

Abstract

A fuel-activating substance comprising a fuel-activating material and having heat resistance imparted thereto. This fuel-activating substance can hence be applied or attached even to parts to be used under such temperature conditions that use with organic resin binders has been impossible, whereby the effect of saving energy in combustion devices is further heightened. The heat-resistant fuel-activating substance is characterized by being obtained by melt-mixing 50-150 wt.% metallic thermal spray material with 100 wt.% fuel-activating material of which the spectral emissivity for electromagnetic waves with wavelengths in the range of 3-20 µm is 0.85 or higher and making the mixture capable of thermal spraying. Alternatively, 100 wt.% the fuel-activating material and 50-150 wt.% metallic material having a melting point of 420ºC or lower may be formed into a sheet through melting. Furthermore, a mixture of 100 wt.% the fuel-activating material and 75-150 wt.% inorganic resin having a heat resistance temperature exceeding 300ºC may be formed into a sheet or may be subjected to thermal spraying or applied in a molten state.

IPC Classes  ?

• F23K 5/08 - Preparation of fuel