FURNACE FIRING APPARATUS AND METHOD FOR BURNING LOW VOLATILE FUEL

摘要

FURNACE FIRING APPARATUS AND METHOD FOR BURNING LOW VOLATILE FUEL A furnace firing apparatus and method for burning low volatile fuel in which first and second burners are provided to introduce particulate, air-suspended fuel into primary and secondary combustion zones of a combustion chamber. The alignment of the second burner is adjustable and aligned so that the stream of fuel and air introduced by the second burner entrains combustion products produced by the burning of fuel in the primary combustion zone in order to ignite the fuel introduced by the second burner. Secondary air is provided by a pair of plenum chambers to support combustion of the fuel. In an alternate embodiment, an intermediate burner is provided to entrain combustion products from the combustion of fuel introduced by the first burner and whose combustion products are entrained into the fuel introduced by the second burner. 2d-0035I