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Double-spiral, continuous counter-flow extraction equipment

An extraction device and double-helix technology, applied in the field of continuous countercurrent extraction equipment, can solve the problems of difficulty in equipping auxiliary devices and mechanisms, high cost, and no practical application, etc., and achieve the effect of breaking through the length limit, large effective volume, and high work efficiency

Inactive Publication Date: 2008-01-30
黑龙江省计算中心
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Problems solved by technology

However, this design scheme requires many auxiliary devices and mechanisms that are difficult to equip when it is manufactured, especially the extraction process conditions are difficult to control during operation, so it has not been practically applied for many years.
Another example is the "straight continuous countercurrent leaching extraction device" (patent number: 200420018620.X), which adopts a one-section leaching chamber and a through-shaft spiral scheme, and uses thicker shaft diameters and other reinforcement methods to try to extend the length of the leaching chamber. Although the equipment product There are some successful applications in domestic and foreign companies, but the cost is high and the effective volume of the leaching chamber is reduced, especially the length is difficult to reach more than 10 meters.
Thus, the fundamental problem remains unresolved

Method used

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  • Double-spiral, continuous counter-flow extraction equipment
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Embodiment

[0019] The obliquely placed leaching chamber of the present invention is designed with two side-by-side reverse screw shafts 8 and 9, with continuous screw blades 10 or intermittent paddles 11 covered with small holes; the screw shaft is composed of multiple sections, and the two screw shafts are connected The point is wrong, the inclined plane coupling 12 is connected with the upper wall frame of the leaching chamber by an adjustable and positioned connecting rod 13 to form a hanger. Taking a medium-sized equipment as an example to illustrate the implementation of the double-helix continuous countercurrent extraction device: the continuous countercurrent leaching chamber is placed at an elevation angle of 8 degrees, the center distance between the two helical shafts in the leaching chamber is 350mm, the outer diameter of the spiral blade is Φ400mm, the inner diameter of the main shaft is Φ89mm, and the pitch is 215mm , total length 12000mm.

[0020] How It Works and Benefits ...

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PUM

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Abstract

A countercurrent-type continuous dual-screw extractor is composed of feeder, inclined extracting cabin, dregs discharger, filter, condenser, juice squeezer and power drive mechanism. It features that parallel two spiral axles, which consists of multiple segments and has continuous perforated spiral blade or discontinuous paddles, are rotating in different directions.

Description

technical field [0001] The invention relates to a device for leaching and extracting effective components of natural plants and other raw materials. In particular, it is a continuous countercurrent extraction equipment used for large-scale extraction production. technical background [0002] In order to change the backward appearance of traditional Chinese medicine and natural plant extraction production technology and equipment, and solve the problems of traditional extraction tank extraction production of Chinese medicinal materials and solvent consumption and energy consumption, low process extraction rate, and large differences between batches of active ingredients, etc., in recent years, Many continuous countercurrent extraction equipment designs have emerged, such as: trough continuous countercurrent extraction machine, towline continuous countercurrent extraction equipment, folding continuous countercurrent extraction equipment, straight continuous countercurrent extr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D11/02
Inventor 程乃春赵传玉刘思成裴小军徐树军王生瑶
Owner 黑龙江省计算中心
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