A special dryer for copper hydroxide combines the temperature and pressure of air to simultaneously break up and dry a variety of materials. The system works by using low pressure air, steam or inert gas to continuously break up and transport material through the drying circuit. The heated drying medium (up to 1300 °F) is introduced at high speed into the turbulent mode from the dryer manifold and through a series of high speed nozzle drying chambers. The material then passes from the auger into the circulating high velocity gas stream within the annulus. Immediately after drying, it began to enter the test chamber as feed and encountered a turbulent gas flow. This creates a split material and exposes a large surface area particle-particle collision. The increased surface area reduces the drying time by increasing the heat transfer rate.