Introduction to camellia seed：

  Camellia seed is the fruit of the Camellia oleifera tree. Camellia seeds are mainly composed of water, crude fat, starch, crude protein and crude fiber. Camellia seeds have the effects of lowering cholesterol, anti-aging and preventing tumors.

Camellia seed drying process：

  According to the characteristics of the oil-tea seed, the tea seed is covered with a dense and separated tea seed shell, which hinders the heat transfer and water evaporation process of the tea seed kernel, and most of the water in the oil tea seed is concentrated in the tea seed. In Renzhong, the traditional drying method has a long cycle, low efficiency, and is not environmentally friendly. The use of air energy dryers greatly reduces the drying time of camellia seeds. The drying time of each batch of camellia seeds is about 20 hours, which is divided into 5 key steps:
1. Control at 55°C for no more than 2 hours, heat only without dehumidification, heat evenly, and reach an average uniform temperature. Moisture begins to evaporate into the air. As the temperature of camellia seeds increases, the partial pressure of steam on the surface also increases. , The rate of water vaporization also increases rapidly.
2. Start heating and dehumidification, the temperature is controlled at 60℃, the humidity is reduced from the initial 75% to 55%, and the time is about 6 hours. The moisture content on the surface of the camellia seed diffuses to the surrounding medium, and the moisture content decreases linearly.
3. Maintain a constant speed drying at 60°C and adopt continuous dehumidification to remove the humidity to 40% for 4 hours. The water vapor pressure on the surface of the camellia seed is in a dehumidified state corresponding to the temperature of the camellia seed at this time.
4. The humidity is also reduced to 30%, and the temperature is increased by 3°C on the basis of step 2 for 4 hours, and the drying speed remains unchanged.
5. Finally, the humidity is reduced to 20%, the temperature remains unchanged, for 4 hours, the air humidity is at 20%, and the humidity of the camellia seeds is about 10-12%. It takes time to dry 2 tons of camellia seeds and a 12P heat pump dryer 20 hours.

Recommendation of camellia seed dryer/drying machine

Commercial 100-3000kg/h large amount of dehydration wide application and easy operation

  Heat pump drying machine use the principle of inverse Carnot cycle. It absorbs low-temperature heat energy in the air, which becomes high-temperature heat energy after efficient heat collection and integration by the heat pump system, and is transported to the drying room for cyclic heating and drying of materials.It refers to exhausting the hot and humid air in the drying room directly to the outside of the drying room through dehumidification device, and then replenishing natural fresh air.

  Hot air circle drying machine belongs to high temperature heat pump unit. Its working principle is: the working fluid of the heat pump is compressed by the compressor, becomes high temperature and high pressure gas, enters the condenser, condenses and liquefies the heat, and is used for air heating in the drying room. The moisture in the material is vaporized and evaporated by the form of hot air, and the evaporated water vapor is discharged by the moisture discharge system, thereby achieving the purpose of drying the drying material.


Camellia seed drying video：