Double cone rotary vacuum dryer is a commonly used drying equipment. Its working principle is based on the principles of vacuum and rotation.
Put the materials to be dried into the container of the double cone rotary vacuum dryer. Then, the air inside the equipment is extracted through a vacuum pump to form a vacuum environment. Under vacuum, the moisture on the surface of the material begins to evaporate.
The container is heated through the heating system inside the device. The purpose of heating is to provide energy to cause water to evaporate faster. Double cone rotary vacuum dryers usually use indirect heating, that is, heating the wall of the container through an external heating source instead of directly heating the material.
The double cone rotary mechanism inside the equipment starts to rotate. This rotating design can heat the material evenly and avoid overheating or local overheating. Rotation can also increase the contact area between the material and the inner wall of the equipment, improving drying efficiency. As heating and rotation proceed, the moisture in the material gradually evaporates and is pumped out of the equipment by the vacuum pump. The evaporated moisture is cooled into a liquid by a condenser inside the device and then drained out of the device.
When the moisture in the material reaches the required dryness level, both heating and rotation will stop. At this time, the vacuum pump stops working and the inside of the equipment returns to normal pressure. The dried material can be taken out of the equipment.
The double cone rotary vacuum dryer combines the vacuum environment and the rotary mechanism to evaporate the moisture in the material and discharge it from the equipment, thereby achieving the purpose of drying. This design can effectively control the drying process and ensure the quality of materials and drying efficiency.
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