SIMEC - Triple Layer Drum Dryer

Application Scope
The triple layer drum dryer is an energy-saving and high efficiency drying equipment. It can process not only high moisture content material with low viscosity,but also high viscosity material. The dryer is applicable to dewatering all kinds of mash and residues with water content less than 85%, such as brewery mash, wood sawdust, alcohol mash, fruit residue, poultry dung, litter, etc. It has a good effect on exploring new feed resource, reducing the raising cost, and lessening environmental pollution.

Mechanical Structure And Operating Principle
The wet material is fed by feed device to the inner layer of the dryer where forward flow drying is realized. The material is repeatedly shoveled and dispersed by the lifting plate to do heat exchange in screw movement forward. Then the material moves to another end of the inner layer and enters the middle layer, where counter flow drying is realized. And the material is winnowed repeatedly and makes its way two steps forward and one back. During this period, the material can fully absorb the heat given by both the inner and middle layers. And at the same time the drying time is extended,which can make the material perfectly dried.
The material moves to the other end of the middle layer and falls into the outer layer,where the material makes its way in the form of rectangle multiple chains, and the dried material moves faster,then will be discharged out of the drum dryer in the same direction with the airflow. The wet material will still stay inside and being dried until it’s dry enough.

• To reach the same capacity, triple layer drum dryer occupy less space. Its overall size is less. Easy for transportation and installation.
• Sufficient in heat exchange: the heat exchange between the material and the hot air is realized by reciprocal and cross motion in the direction of forward flow, counter flow and again forward flow, with long time of heat exchange. The moisture evaporated from the material in the inner layer is directly exhausted by the fan. Therefore the heat utilization rate is high.