Microwave drier and microwave drying method

Abstract

The invention provides a microwave drier and a corresponding microwave drying method. The microwave drier is a quick container for extracting moisture by using microwave penetrability, wherein heat energy is generated for a material in a drier main body, and a tube screen which is arranged in the drier main body can serve as a heat temporary storage body for temporarily storing the heat energy. Hot air in the drier main body is exhausted by using an air exhaust system and then injected into the drier main body from the bottom of the drier, and a quick drying effect is achieved by gradually increasing heat. The microwave drier has a structure which is formed by using a physical phenomenon that the material rises up when the specific gravity of molecules of the material in air is small and sinks when the specific gravity of the molecules of the material in the air is large. When the moisture of the material is extracted, the specific gravity of the molecules of the material in the air is smaller, and the dried material can be taken out of the drier main body by using enough wind power, so the material can be stored and packaged.

Description

technical field [0001] The invention belongs to the technical field of microwave drying. Specifically, the invention relates to a microwave dryer and a microwave drying method for fast and energy-saving drying of materials. Background technique [0002] At present, the treatment of organic waste articles with a humidity content of usually 75% to 85% is a serious problem. Although there are various heat treatment methods, these methods all require preliminary drying of the waste. This method Requires considerable energy consumption. Under the premise of meeting the environmental protection conditions, using the thermal radiation energy in the microwave drying equipment to process the above materials can achieve energy saving and waste reduction. [0003] The microwaves refer to electromagnetic waves with a frequency of 300 MHz to 300 GHz and a wavelength of 1 mm to 1 m. Its drying principle is: the microwave generator radiates microwaves to the material to be dried. When th...

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Problems solved by technology

[0008] The disadvantage of the microwave drying equipment in the prior art above is that the drying time of the material is still very long, or the material needs to be put into the drying equipment in batches, and the material cannot be continuously fed into the drying equipment.

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