Patent ID: 9395119
Filing Date: 2016-07-19
CPC Classification: F23G,F26B,F27B

Claim Text:
1. A rotary furnace that is designed for heat treatment of solids by conduction of heat in the absence of oxygen, comprising at least one rotary tube ( 1 ) into which the solids are introduced and a heater outside of the rotary tube that enables conducting the heat treatment, wherein the rotary tube comprises—on its inside surface, in contact with the feedstock to be treated—at least one heating blade ( 30 , 31 , 32 , 33 , 34 , 35 , 36 ) that is integral with the rotary tube ( 1 ), heated internally by conduction of the heat from the rotary tube ( 1 ), extends over the entire length of the rotary furnace is hollow to permit the internal passing of hot gases via piercing of the tube, and (a) the heating blade ( (b) the blade (