The rotary drum dryer has a large processing capacity, simple operation, and good drying effect. The dried material is in direct contact with the hot air and is dried by convective heat transfer. According to the flow direction between the hot air and the material, it is divided into parallel flow and counterflow. In the parallel flow type, the hot air moves in the same direction as the material, and the hot air with a higher temperature at the entrance contacts the material with higher moisture content. Because the material is in the stage of surface vaporization, the product temperature still roughly maintains the wet-bulb temperature.
Zhengzhou Dingli's introduction to the process flow of the alcohol lees dryer: the alcohol lees with 60-65% moisture is sent to the mixing drum dryer by a screw conveyor to achieve downstream drying. The alcohol lees are continuously picked up under the copy board and scattered in a spiral. The built-in multi-layer copying board structure fully stirs and disperses the alcohol lees. The alcohol lees and the hot air are fully heat-exchanged, and the water evaporates and vaporizes quickly. The alcohol lees that achieve the drying effect are quickly discharged out of the drum under the action of the hot air, and the drying effect is not achieved. Because of its own weight, the wet alcohol lees cannot travel quickly. The alcohol lees are fully dried in the drum, thereby achieving the drying effect, completing the drying process, and being discharged by the screw conveyor. A shock cleaning device is installed inside the drum to prevent the alcohol grains from adhering to the wall of the drum.
The above is about the introduction of the process flow of the alcohol lees dryer. Zhengzhou Dingli is a manufacturer of rotary drum dryers. At present, it provides alcohol lees drying equipment that can process several tons to dozens of tons per hour. The equipment can be customized and can be satisfied. Customers in different regions deal with the needs of alcohol lees, etc. Welcome to call for consultation equipment.
