Food freeze-drying equipment based on microwave technology

Abstract

The invention discloses food freeze-drying equipment based on a microwave technology, which comprises a tank body, a microwave generator, a control cabinet, a transmission flow separation plate and a material shelf, the tank body is of a hollow spherical or ellipsoidal structure, a microwave resonant cavity is formed in an inner cavity of the tank body, the microwave generator is arranged on the tank body in a surrounding manner and is connected with the control cabinet, and the transmission flow separation plate is connected with the material shelf. The transmission flow separation plate is arranged in the microwave resonant cavity and connected with the output end of the microwave generator, the material frame is movably installed in the microwave resonant cavity through a movable assembly, the movable assembly comprises a sliding base, a supporting base and a pulley, the sliding base is arranged at the bottom in the microwave resonant cavity and provided with a sliding groove, and the sliding groove is communicated with the supporting base. The supporting base is arranged at the bottom of the material frame and installed in the sliding grooves in a sliding mode through pulleys. According to the improved structure, the material frame moves in the tank body through the movable assembly, and cleaning and maintenance during failure are facilitated.

Description

technical field [0001] The invention relates to the technical field of freeze-drying equipment, in particular to a food freeze-drying equipment based on microwave technology. Background technique [0002] The basic principle of freeze-drying is based on the three-state change of water. Water has solid, liquid and gaseous states, and the three states can be transformed into each other and coexist. When water is at the triple point (temperature is 0.01°C, water vapor pressure is 610.5Pa), water, ice, and water vapor can coexist and balance each other. Under the high vacuum state, using the principle of sublimation, the moisture in the pre-frozen material can be directly sublimated into water vapor in the ice state without melting the ice, so as to achieve the purpose of freeze drying. Freeze-dried products are sponge-like, have no shrinkage, have excellent rehydration, and have very little water content. After corresponding packaging, they can be stored and transported at ro...

AI Technical Summary

Problems solved by technology

[0003] With the development of industry, the production and storage of a large amount of food needs to be freeze-dried. When the same freezer is operating, it needs to be cleaned and sterilized when encountering different foods that need to be freeze-dried. Because the material racks are used to place different After the food is stored, it is often necessary to clean it comprehensively, but the traditional material rack is often fixed and installed in the freezer tank, which is not easy to move, difficult to clean, and there is a fault in the tank, and maintenance is also difficult. Therefore, a food with an ingenious structure and easy to move is needed Freeze drying equipment

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