Patent ID: 6401636
Filing Date: 2002-06-11
Classification: F23G

Abstract:
A process for incinerating a solid particulate material comprising the steps of:introducing a feed mixture into a first combustion zone of a furnace, said furnace having a lower end and an upper end defining a primary combustion chamber, said feed comprising a mixture of said solid particulate material and a first source of combustion air in an amount less than a stoichiometric amount needed to completely incinerate said particulate material; incinerating said solid particulate material in a first incinerating stage in said first combustion zone in an atmosphere containing less than a stoichiometric amount of air to inhibit the formation of sintered ash; feeding a second source of air into a second combustion zone located above said first combustion zone to cool said second combustion zone; and feeding a third source of air directly into a center portion of said first combustion zone of said furnace to cool said first combustion zone.