Dingli three-layer single-channel food waste slag rotary drum dryer (patent number: ZL200920089749.2), the equipment has large output, high efficiency and energy saving, small footprint, and it is especially suitable for high moisture such as food waste residue. The material is dried, and the water can be quickly dried from 65-75% to 14-18% at one time. The dry food residue completely retains the original nutrients, the color is bright, the smell is fragrant, and the energy is 30% higher than that of the ordinary dryer. -50% to maximize energy and drying costs.

Working principle：

  The material flow is: water 75-85% food waste residue, through the dewatering machine, the moisture is removed to 60-65%, and the conveyor is fed into the drum to achieve downstream drying, and the material is continuously picked up under the inner layer of the copy board. The scattered spiral advances, through the inner, middle and outer layers, to achieve material and hot air quality heat exchange, the material that achieves the drying effect quickly travels out of the drum under the action of wind, and the wet waste residue that does not reach the drying effect is due to its own weight. Can not travel quickly, the material is fully dried within the control stroke, thereby achieving the drying effect, the material moisture is reduced to 14-18% (customer requirements), the drying process is completed, and discharged by the screw conveyor. A special removal device is installed inside the drum to prevent uneven material drying.

  The gas flow is: the air is pressurized by the hot air blower into the hot air furnace for combustion and the temperature reaches 600-850 ° C. After being blown by the dryer, the induced draft fan sucks the dryer to dry the material, evaporates the water, and passes through the three-layer heat exchange and the air temperature. The temperature is lowered to 55-60 ° C to discharge the dryer, and the dusty moisture is collected by a cyclone dust collector and cleaned by a wet dust collector.