Patent ID: 6077072
Filing Date: 2000-06-20
Classification: F27B,F27D

Abstract:
An apparatus useful for producing clinkers, comprising:a rotary kiln having a material inlet and a clinker outlet;a main burner for emitting a flame and positioned sufficiently near said clinker outlet to heat a load in the interior of said rotary kiln;an injector adjacent said main burner, said injector having a longitudinal axis and comprising:an oxidant flow passage having and extending between an oxidant inlet and a secondary oxidant outlet;a primary oxidant flow passage having a primary oxidant outlet;at least one secondary fuel flow conduit having and extending between a secondary fuel inlet and at least one secondary fuel outlet;wherein said primary oxidant flow passage outlet is set at an angle .alpha. to said longitudinal axis ranging from about -20.degree. to about 90.degree.; andwherein said at least one secondary fuel outlet and said secondary oxidant outlet are set at an angle .beta. ranging from about 0.degree. to about -90.degree..