Airflow drying is to put the wet material in the stream of dispersed into powder, granular, make with airflow movement and drying process.The body of the common air China dryer is a vertical cylinder, in order to make the material dispersion, standing in front of the China dryer has a crushing device. Wet material from the feed hopper to join the screw conveyor in the mixer, mixed with a certain amount of dry materials into the airflow drying after the bottom of grinding mills.

The flue gas from the combustion furnace (or hot air) into the mill at the same time, also will powder, granular solid blow into the air China dryer. Because of the hot gas adjusted motion, make the material scattered particles and suspended in the air. For heat transfer and mass transfer between the stream and material, make material to dry, and with the air flow into the cyclone separator, after separation from the bottom of the outside, and then through the effect of solid flow distributor, regularly expelled, or into the spiral mixer used for circulation, exhaust fan vent.

The rotary dryer which is also named drying machine is made up of body of revolution, material plate, driving device, supporting device and sealing ring. The advantages of the flour dryer are the following such as the simple structure, easy operation, low cost and large output. Air rotary dryer has simple structure, low cost, heat loss is low, easy to build and repair, stable operation and facilitate the mixing, is suitable for drying the moisture and the cluster a serious and not afraid to wear particle materials, particularly suitable for drying heat-sensitive materials or low critical moisture content of fine open or powder materials.

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limestone dryer: http://www.ball-mill-china.com/products/dryer_machine.html