ROTARY KILN INTERNAL HEAT EXCHANGER Russian patent published in 2010 - IPC F27B7/00 

FIELD: heating.

SUBSTANCE: invention relates to calcination of stock, for example oil or pitch coke, or hard coal in rotary kilns. Proposed device comprises heat exchange elements to mix up material. Said elements represent tooth with triangular part extending beyond kiln lining, triangle larger side being oriented in direction opposite to kiln unloading face. Angle between triangle larger side and adjacent sides makes at least 45°. Said tooth are located in the kiln material heating zone and arranged staggered in parallel rows relative to each other and adjacent sections.

EFFECT: higher efficiency and expanded operating performances.

3 cl, 3 dwg