Abstract: A chamber for treating waste material includes a substantially closed chamber which is horizontally elongate with a conveyor provided within the chamber oriented generally horizontally and defining an upper portion and a lower portion with a series of paddles arranged to move material along the upper portion of the conveyor. A material supporting surface formed of ceramic material is provided between the upper portion and the lower portion of the conveyor. The material supporting surface is generally U-shaped and forms a channel through which the paddles move along the upper portion of the conveyor. The material supporting surface is carried by a plurality of metal horizontal support members which are cooled by a fluid. The paddles are asymmetrically oriented with respect to the conveyor.

Abstract: A chamber for treating waste material includes a substantially closed chamber which is horizontally elongate with a conveyor provided within the chamber oriented generally horizontally and defining an upper portion and a lower portion with a series of paddles arranged to move material along the upper portion of the conveyor. A material supporting surface formed of ceramic material is provided between the upper portion and the lower portion of the conveyor. The material supporting surface is generally U-shaped and forms a channel through which the paddles move along the upper portion of the conveyor. The material supporting surface is carried by a plurality of metal horizontal support members which are cooled by a fluid. The paddles are asymmetrically oriented with respect to the conveyor.