BURNER FOR PRODUCING A FLAME IN A COMBUSTION CHAMBER OF AN ANNULAR VERTICAL SHAFT KILN, COMBUSTION CHAMBER FOR AN ANNULAR VERTICAL SHAFT KILN AND PROCESS OF COMBUSTION IN SUCH A COMBUSTION CHAMBER

摘要

Burner (100) for producing a flame in a combustion chamber (200) of an annular vertical shaft kiln (300) comprising: a. a first innermost sleeve (101) having a bore (104) and a distal extremity (112) directed through the inside of the said combustion chamber (200), said first innermost sleeve (101) providing a bluff body to create a bluff body effect on the flame, b. a second sleeve (103) surrounding said first innermost sleeve (101) and forming a first annular channel (105) with the said first innermost sleeve (101), the said first annular channel (105) being provided for an annular injection of a combustible, preferably a solid powdered combustible carried by a carrier fluid.