Meichen tube bundle dryers are a safe and reliable dryer due to their operation method. The steam tube bundle rotates slowly and conveys the material to be dried axially through the tube bundle. Shovels elevate the material along the circumference, and then the material trickles through the tube bundle back into the trough. The material gets dried by contact with the tubes and by convection.
Design features
Tube bundles are operated on the counter-flow principle, steam flow moving in the opposite direction to the material flow.
Heating tubes are expanded into the tube plates by using of automatic torque control expanding facility, precisely expanding process increasing both the quality and life of the tube bundle.
High efficiency.
Automatic operation with low maintenance.
Constant discharge temperatures and product moisture.
Low temperature drying for high quality products, avoiding losses of nutrients, also guarantee minimal or zero colour changes.
Mild steel or stainless steel constructions as options.
To achieve an optimal operating performance, the dryer is customized, for example , the spaces between tubes and tube diameters, shovel positions and filling levels inside the housing etc. are designed and adjusted to an optimum.
To optimize the performance of the dryer, it is recommended to recycle partial dry fiber to inlet of dryer to mix with the wet fiber. The same to gluten dryer.
The main bearing of the gear side tube bundle is a split bearing. It can be replaced without removing the big gear. The maintenance work is simple and convenient. It only takes two people two hours. This is the unique technology of Changchun Meichen. 
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