Onions are known as “the queen of vegetables”, which shows that onions have high nutritional value. After the onion is harvested, it needs to be dried for 2-3 days to remove the surface moisture. After drying, it needs to be dried before it can be sold. The traditional method of drying in the sun will inevitably encounter rainy weather, which will lead to problems such as mildew, humidity, and short storage time of onions. At this time, a “gentle” drying method is required. The onion drying machine can meet exactly this.
Onion drying process
The onion drying machine is composed of a host, a drying room, a circulation system, a dehumidification and drainage system, and a fully automatic intelligent control system. It is a new type of high-efficiency and energy-saving dryer. According to the reverse Carnot cycle principle, a small amount of electric energy is used, and the compressor is used to evaporate into a gaseous state in the evaporator after passing through the expansion valve, and absorb a large amount of heat energy in the air. The gaseous working medium is compressed by the compressor into a high-temperature, high-pressure gas. , and then enter the condenser to release heat to heat the onion, so that the onion can be heated by continuous circulation heating. Onions generally have a relatively high water content, so it is necessary to set a low-temperature hot air to dry at a constant temperature. High temperatures will destroy the nutritional value of vegetables. The drying temperature of onions should not exceed 50°C. Drying can be carried out in multiple stages. At the beginning, the temperature is set to 50—— 40°C, then 40-30°C, then drop to about 35°C. The drying cycle of a batch of onions is about 15 hours, and rapid drying will destroy the quality.
Onion drying machine price
Depending on the output and different equipment components, the price of the onion drying machine ranges from about 4,000 to 100,000 US dollars, and can be customized according to the needs, and the customized price will also increase.
The onion drying machine developed by our company has a wide range of applications and is suitable for drying various materials such as meat products, vegetables, fruits, food, medicinal materials, and crops. It can make full use of the different harvest seasons of different products, use time-sharing equipment, and improve the utilization rate of equipment and funds.
If you want to purchase, customize onion drying machine, or are interested in drying equipment, please feel free to contact us.