This rotary drying machine, which is also known as rotary drum dryer and roller dryer, is mainly composed of rotary part, lifting board, transmission part, supporting part and seal ring. The china dryer machine produced by our company uses new lifting board with many functions of guiding, current sharing and material lifting, and the materials can be comprehensively distributed on the radial sections of the dryer machine and the material curtain is in the thin, average and full state and the materials can fully contact the hot air, thus achieving the aim of making full use of the heat.

In the drying process of China dryer, Materials due to the internal water flow speed below the surface of the gasification, then there will be a part of the material surface is dry form, so the gasification of water decreases, and also say: drying speed will reduce gradually.At this point, called the drying speed down phase.The phase characteristics of the same as the second phase, moisture evaporation by material surface, and the wet surface gradually reduced, the speed of the dry land in symmetry.

The rotary drum dryer materials reach the equilibrium water content or critical water cut stage, with the loss of the drying speed, the material surface temperature will continue to rise, in the middle of the dry heat to internal transfer, make the evaporating surface to move to the internal, and steam water flow and then spread to the surface.So much, less and less material in water content, and water flow resistance is more and more big, the drying speed down soon, in the end, the material moisture content and the temperature of the air phase equilibrium; The water content of materials has reached certain conditions of equilibrium moisture content, the drying speed is zero, the drying process was completely over.

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rotary drying machine: http://www.crushing-mill.com/dryer-machine/