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Mesh belt type continuous microwave reflux extraction method and device for Chinese medicinal material extraction

An extraction method and technology for traditional Chinese medicinal materials, which are applied in the field of mesh belt microwave continuous countercurrent extraction method and device for extracting traditional Chinese medicinal materials, can solve the problem that the diameter of the tubular structure cannot be too large, the extraction efficiency and output are affected, and the screw propeller is subjected to large force. and other problems, to achieve the effect of speeding up the extraction and diffusion process, facilitating the post-processing of the medicinal residues, and avoiding the loss of the extract.

Inactive Publication Date: 2011-11-09
刘刚 +1
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Problems solved by technology

However, the disadvantage of this method is that the structure of the screw propulsion device cannot effectively propel the movement of Chinese herbal medicines, and it is easy to jam and difficult to clean; the force of the screw propeller is large during the propulsion process, and it is easy to be damaged; the diameter of the tubular structure should not be too large, otherwise it will affect the microwave effect effect, which in turn affects extraction efficiency and yield

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  • Mesh belt type continuous microwave reflux extraction method and device for Chinese medicinal material extraction
  • Mesh belt type continuous microwave reflux extraction method and device for Chinese medicinal material extraction

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[0033] The following will be further described in conjunction with the accompanying drawings, but it does not mean to limit the changes based on the common knowledge in the professional field of the mesh-belt microwave continuous countercurrent extraction method and its device for extracting Chinese herbal medicines in the present invention.

[0034] The cut pieces of Chinese herbal medicines are put into an infiltration tank that can be sealed (the lower end has a rotary valve that can discharge materials continuously), soaked in water, and after vacuum decompression, the purified steam is directly passed in and gradually heated to complete the infiltration of Chinese herbal medicines. Then return to normal pressure. At the same time, repeated vacuum-infiltration, heating-normal pressure operations can be performed to ensure the infiltration effect of Chinese herbal medicines.

[0035] The infiltrated Chinese herbal medicine pieces are sent out through the continuous discharg...

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Abstract

The invention belongs to the field of Chinese medicine pharmacy, and in particular relates to a mesh belt type continuous microwave reflux extraction method and device for Chinese medicinal material extraction. The method is characterized in that: a soaked medicinal material enters a solvent in a nearly horizontal mode and is reversely delivered with the solvent, microwave is simultaneously acted on the solvent and the Chinese medicinal material, the Chinese medicinal material and the solvent are repeatedly extruded in the mutual movement process, and finally, the solvent is extruded, separated and continuously discharged; and the solvent is fed in the discharge direction of the Chinese medicinal material and discharged from the inlet of the Chinese medicinal material and moves in the direction opposite to the Chinese medicinal material. The method and the device have the characteristics that: because a double-layer mesh belt carrying the Chinese medicinal material refluxes and moves in the solvent, the defect of incomplete heating because the Chinese medicinal material cannot be in full contact with the solvent in the digestion process of the traditional Chinese medicinal material solvent tank can be avoided; microwave for strengthening is used at the same time of continuous extraction, therefore, the extraction efficiency is high; and compared with the conventional microwave reflux extraction equipment, the device prevents the medicinal material from being stuck and blocked, and is easy to clean and maintain.

Description

technical field [0001] The invention belongs to the field of traditional Chinese medicine pharmacy, and in particular relates to a mesh-belt type microwave continuous countercurrent extraction method for extracting Chinese medicinal materials and a device thereof. Background technique [0002] The extraction of Chinese herbal medicines is an important production process for removing roughness and saving essence, reducing dosage, and obtaining Chinese patent medicines that are convenient for clinical use. Solvent extraction is generally used, and heating is used to enhance the extraction efficiency of solvents. Traditionally, static or dynamic methods are mainly used. Extraction tank extraction method, or reflux method. [0003] Microwaves have a selective heating effect on water, and at the same time have internal heating and blasting effects on tissue cells of Chinese herbal medicines. Therefore, microwave-enhanced solvent extraction is considered to be one of the most effi...

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Application Information

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IPC IPC(8): B01D11/02B01J19/12
Inventor 刘刚张娟
Owner 刘刚
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