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According to industry insiders, in general, chrysanthemum drying has to go through multiple stages, and the temperature, humidity, and time settings are different in different stages. For example, the first stage, the temperature is set at 30 ° C, the humidity is kept at about 70%, and dried. The time is 2 hours; the second stage, the temperature is 32 ° C, the humidity is set to 62%, the time is about 4 hours; the third stage temperature is about 53 ° C, the humidity is kept about 46%, the time is about 5 hours, and the like. Since the key to chrysanthemum drying is temperature and humidity, it is necessary to accurately control the drying time, temperature and humidity to better ensure the color, fragrance, shape and taste of chrysanthemum.
At present, microwave drying machines and heat pump dryers appearing on the market are ideal for drying chrysanthemums. Both devices are equipped with a temperature control system that allows temperature and time to be set for precise temperature control. In addition, one uses microwave technology, and the other uses high-temperature heat pump technology, which can be heated from the surface of the material and then transferred to the interior through heat conduction, so that the chrysanthemum is evenly heated, improving drying efficiency, saving time, avoiding uneven drying and drying of chrysanthemum Long time affects taste and quality.
In addition, the microwave dryer and the heat pump dryer are used for chrysanthemum drying without generating exhaust gas and will not pollute the atmosphere. At the same time, its thermal efficiency is high, there is no excessive heat loss. For example, the efficiency of traditional drying equipment is only 40%, the conversion efficiency of electric energy to microwave energy is over 80%, and the heat pump drying can exceed 110% energy efficiency, effectively matching The current state advocates the requirements of energy conservation and environmental protection.
There is no doubt that chrysanthemum has become a "rich flower" for many villagers to get rid of poverty. The author believes that under the help of microwave dryer and heat pump dryer, not only can the chrysanthemum drying efficiency be improved, the labor cost can be saved, but also the precise temperature control can be realized to ensure the dry quality of chrysanthemum, and then the chrysanthemum industry can continue to revitalize the rural economy. Farmers will increase their income and contribute.
The chrysanthemum industry is effective in processing and benefiting from microwave and heat pump dryers.
A chrysanthemum drying processing plant in Wuyi County, Jiaozuo City, Henan Province, abandoned the traditional drying method and upgraded the traditional chain-type high-temperature drying process to the current temperature-controlled fine drying equipment, which not only improved the production efficiency, but also improved the chrysanthemum drying. The shape and quality reduce the loss of chrysanthemum raw materials to a certain extent.