Tobacco Drying Machine
Tobacco Leaf Heat Pump Dyer Machine
Tobacco leaf heat pump dryer uses reverse Carnot principle to allow hot air circulation blower to dry the material. Heat pump dryer Compressor – heat exchangers – Chokes – heat sink (outside the machine) – Compressor and other devices form a refrigerant cycle system. Fan wheel rotates, bringing outside air into the oven, hot air is formed, then enter the working chamber through the air distribution plate gap, bringing a lot of hot air inside the circulating flow, Continue to enter new air inlet supplement. After the recycled exhaust moisture from the exhaust port.The whole cycle, so that the material is heated uniformly, and the purpose of drying.
Tobacco Threshing Process
Mechanical threshers and pneumatic separators are used to separate the conditioned leaves. The drums and blades of the thresher break the lamina from the stems, resulting in a mixture of the lamina, stems, and un-threshed leaves. The lamina is separated from the un-threshed leaf and the stem using a classifier. The un-threshed leaf and stems proceed into the next thresher, while the lamina carries on to the next phase. The threshing and classifying process is repeated until the stem and lamina have been separated completely.
Tobacco Drying Process
Because the moisture level of the lamina from different classifiers varies, the moisture must be made uniform for proper storage of the lamina. The lamina is first dried in a chamber to ensure that the moisture content is homogeneous. After cooling, the dry lamina is placed in a high humidity conditioning room, where it collects moisture and reaches equilibrium. After that, the lamina is packaged and stored until it is needed. On a dedicated drying line, stems are handled in the same way, resulting in a consistent product for storage.
To securely preserve tobacco for long periods of time and maintain a high-quality product, the lamina and stems must have a moisture content of 11 to 12 percent. The lamina is around 6 to 8 percent when it exits the drying chamber, and 11 to 12 percent when it exits the humidity chamber. For aging or mellowing, the finished packed lamina and stems are normally held for at least 6 months.