Microwave vacuum continuous drier with two drying chambers and method using the same

Abstract

The present invention mainly relates to the structure of a microwave drier, especially a structure of a microwave vacuum drier. A microwave vacuum continuous drier with two drying chambers, includes a tank (A), a hoisting system (8), a vacuum system (9), wherein a delivery device (6) is disposed in the tank (A), and a discharging device (5) below the delivery device (6), characterized by including a microwave vacuum drying chamber (A3) in the tank (A), a microwave heater system (1) on the wall of the tank (A) of the microwave vacuum drying chamber (A3), a separating plate (2) on one side of the microwave vacuum drying chamber (A3) to form a vacuum cooling solidifying chamber (A4). The driving belt (64) of the delivery device (6) traverses the window (21) arranged on the separating plate (2). On one end of the tank (A) is arranged with the microwave vacuum drying chamber (A3) and on the other end is the vacuum cooling solidifying chamber (A4). The separating plate (2) separates the two chambers to make the temperature have the obvious gradient. The invention adopts the way of microwave radiation heating, utilizing the characters of microwave high efficiency, easy to control, antisepsis, sterilization, fast heating, even heating, fast dehydration, preserving to reduce the power waster and advance the efficiency.

Description

Technical field: [0001] The present invention mainly relates to a structure of a microwave dryer, in particular to a structure of a microwave vacuum dryer. Background technique: [0002] Traditional material drying, especially in the traditional Chinese medicine concentration process, because the extract is generally a thick jelly-like material, because it is relatively viscous and the inside is not easy to dry out, so conventional drying methods are used, such as steam drying or vacuum drying There are shortcomings such as long cycle, high power consumption, low efficiency, uneven heating, and poor fresh-keeping performance. In order to solve the above problems, the patent No. 03243669.6, the patent titled "Extract Microwave Vacuum Dryer" discloses a scheme. On the basis of the original vacuum heating, microwave heating is added, and microwave energy is used to transmit energy in a vacuum state. Affected, the moisture of the medicine is evaporated to achieve the purpose of...

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Problems solved by technology

The problem with this scheme is that during the heating process of the material, due to the discontinuous process, the efficiency is relatively low, and it cannot meet the needs of the production of traditional Chinese medicine factories.

[0003] Patent No. 01255151.1, the patent titled "Clarifying Liquid Low-Temperature Automatic Dryer" discloses another solution, "sequentially install steam heat radiation panels, several consecutive heat radiation panels, and refrigeration panels" on the conveyor belt of the vacuum dryer, Make the material run from high temperature to low temperature on the conveyor belt. Since the temperature gradient is not obvious, the dried material cannot reach a moisture content below 7%.

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