Device and method for pyrolyzing waste materials

A device for pyrolyzing waste materials comprising a low-temperature carbonizing reactor including a longitudinally extending tubular vessel loaded with waste materials to be pyrolyzed, a flue gas duct surrounding a shell of said carbonizing reactor and defining an annular space which concentrically surrounds said tubular vessel having hot flue gases passed therethrough for the purpose of heating the shell of said reactor, and baffle means for maintaining turbulent flow disposed about said reactor in said annular space in such a way that they are to uniformly distribute the flue gases about the periphery of said tubular vessel and to produce and maintain turbulent flow conditions throughout the area to be heated, said baffle means comprising a plurality of planar heat conducting means distributed throughout the length of said flue gas duct, a plurality of said heat conducting means each being disposed in planes containing the longitudinal axis of said annular space a plurality being disposed to define an angle with the longitudinal axis of said annular space and a plurality being disposed in planes extending at right angles to the longitudinal axis of said annular space.