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A technology of microwave vacuum and drying equipment, which is applied in the fields of food, medicine, and chemical industry. It can solve the problems of not being able to dry different materials at the same time, not being able to work continuously, and low production efficiency. The effect of convenience
Inactive Publication Date: 2016-02-10
CHINA AGRI UNIV
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Problems solved by technology
The disadvantages of this device are: low production capacity, low production efficiency, inability to work continuously, and inability to dry different materials at the same time, etc.
Method used
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Embodiment 1
[0052] The adjustment of the spraying wind speed of the equipment of the present invention is achieved by the following methods: during the drying process, if only one valve 4 corresponding to the drying chamber 2 is opened, the spraying wind speed is the full wind speed; if two drying chambers 2 are opened, the corresponding For valve 4, the wind speed in each drying chamber 2 is 1 / 2 of the full wind speed; and so on. Controlling the number of openings of the valves 4 corresponding to the drying chamber 2 can realize the adjustment of the spray wind speed. Theoretically, the number of drying chambers 2 can be unlimited, and the number of drying chambers 2 can be determined according to actual requirements.
Embodiment 2
[0054] During the drying process, when one drying chamber 2 is being dried, any other drying chamber 2 can be opened for feeding and unloading, and the drying chambers 2 are fed and unloaded in sequence to achieve continuous drying operation of the entire equipment.
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Abstract
A multi-cavity continuous-microwave vacuum spray drying device is convenient to use and efficient, saves energy and improves dried product quality, and can be widely applied to the fields like food, chemical industry, medicine and environment protection. The drying device mainly comprises a main distributor (1a), a sub distributor (1b), a microwave generator (3), a pressure control system, a feeding inlet (11), a discharging outlet (12), distribution pipes (13) and a plurality of drying cavities (2). A plurality of vacuum drying pipes (10) are arranged in the drying cavities (2), and the pressure control system comprises a valve (4), a distribution box (5), a pressure sensor (6), a dust remover (7), a cold trap (8) and a vacuum pump (9). Through the design of multiple cavities, within the same pressure fluctuation range, the spray wind speed is adjustable, different materials can be dried at the same time continuously and conveniently, output is large, and compared with other drying modes, the heating time is shorter, the drying rate is improved, the materials are more evenly heated, and product quality is improved.
Description
Technical field [0001] The invention relates to the drying of materials in the fields of food, chemical industry, medicine and the like, and in particular to a multi-cavity spray drying device that uses microwaves to continuously heat in a vacuum state. Background technique [0002] In recent years, because the vacuum microwave drying technology has the advantages of high drying efficiency, high heat utilization rate, and good product quality, it has been more and more researched and applied in the fields of food, chemical industry, and medicine. The microwave heating system is organically combined with the vacuum system, so that the heating speed is fast, the drying or concentration time is short, and the drying temperature is low. It is especially suitable for materials with heat sensitivity, easy oxidation, and high sugar content, such as various foods, medicines, and chemical products. . However, the existing vacuum microwave drying equipment has the disadvantages of discont...
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Application Information
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