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Microwave extracter

An extractor and microwave technology, applied in the field of extraction devices, can solve the problems of uneven heating in the microwave field, non-continuous production, easy clogging of materials, etc., and achieve the effect of simple structure, low cost, and enhanced turbulence intensity

Inactive Publication Date: 2002-12-25
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

[0004] The technical problem to be solved in the present invention is to disclose a microwave extractor that can be operated continuously, so as to overcome the defects in the prior art that the materials are easy to block, cannot be continuously produced, the microwave field is heated unevenly, and the structure is complicated. The microwave extractor can be used It is suitable for the extraction of plant materials or other solid and liquid two-phase mixtures, suitable for the production of chemical industry and pharmaceutical industry

Method used

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Embodiment Construction

[0023] Depend on figure 1 Visible, said microwave extractor of the present invention comprises:

[0024] A cylindrical container 4 made of materials impermeable to microwaves and provided with a material inlet 14 and an outlet 6;

[0025] A V-shaped isolator 12 made of microwave-permeable material and arranged in the cylindrical container 4, a working annulus 13 is formed between the cylindrical container 4 and the isolator 12;

[0026] The transition pipe 10 connected with the cylindrical container 4 and the separator 12 through the upper top flange 8 and the lower top flange 7, the transition pipe 10 communicates with the separator 12, the upper top flange 8 and the lower top flange 7 is provided with an O-ring 9 to prevent microwave leakage, and a gasket 11 is provided between the isolator 12 and the cylindrical container 4 .

[0027] The microwave-transmissible material includes polytetrafluoroethylene or quartz glass, and the microwave-impermeable material includes stai...

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Abstract

A microwave extractor for the flowing micron-class or mm-class particles or fixed great particles is composed of a cylindrical container made of the material impermeable to microwave and an isolator (or transition tube) made of the material permeable to microwave. An annular working gap is formed between said cylindrical container and isolator, and has a height which is the integer times of the half-wavelength of microwave field in consonant mode. Its advantages are high uniformly to absorbing microwave energy, simple structure, and low cost.

Description

technical field [0001] The invention relates to an extraction device, in particular to an extraction device which utilizes microwave energy to heat materials and perform continuous extraction. Background technique [0002] Microwave extraction is a new extraction method formed by combining microwave and traditional solvent extraction. The document "Microwave extraction-a novel sample preparation method for chromatography. Journal of Chromatography, 1986, 371: 299-254.)" first reported the application of microwave extraction in analytical chemistry sample preparation technology. In recent years, the application field of this new extraction method has become wider and wider, and many patents disclose their respective microwave extraction methods and equipment used, such as: [0003] Chinese patent application number: 00120353 discloses a method for microwave extraction of proanthocyanidins in grape seeds; Chinese patent application number: 00120352 discloses a method for micr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D11/02
Inventor 邓修杨笺康郝金玉姚义忠周永传韩伟
Owner EAST CHINA UNIV OF SCI & TECH
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