US4929163A - Apparatus for a pellet mill without steam ...
A pellet mill includes a conditioning section which mixes dry material, moisture in the form of water, and heat provided by a hot air system for the creation of a mash suitable for pelleting without the use of steam. The hot air section inputs heat by utilizing a blower which pressurizes air across a heat exchanger and into a plenum which interconnects an air duct with the conditioner.