F - Mech Eng,Light,Heat,Weapons – 27 – B
Patent
F - Mech Eng,Light,Heat,Weapons
27
B
39/26
F27B 7/16 (2006.01)
Patent
CA 1246867
ABSTRACT The invention relates to an arrangement for improving heat economy in a rotary kiln, in particular in a kiln for reburning of lime mud. The drying and intermediate zones of the kiln chamber are furnished in part with turbulence-forming arrangements to produce a turbulent motion in the hot combustion gases and thereby to force the hotter gases, which flow through the axial central region of the kiln, out towards the kiln wall. The kiln shell is additionally furnished with thresholds in order to increase the transit time of the material through the kiln and further with lifters and a cog-wheel lining in order to lift the material and bring it into contact with the gases. In order to recover the heat from the burnt lime and thereby further improve the heat economy the burner tube is furnished with turbulence-forming baffles and the surrounding kiln shell with lifters and with thresholds at both ends of the burner tube in order to bring the hot burnt lime in contact with the combustion gases and the kiln lining.
473551
Pettersson Bertil
Thorstrom Borje
Fetherstonhaugh & Co.
Termorak Oy
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