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Double-spiral, continuous counter-flow extraction equipment

A countercurrent extraction and double helix technology, applied in solid solvent extraction and other directions, can solve the problems of difficult to equip auxiliary devices and mechanisms, high cost, and reduced effective volume of the leaching chamber, and achieves breakthrough in length limitation, high work efficiency, and large effective volume. Effect

Inactive Publication Date: 2006-06-28
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: 2004-20018620.X), which adopts a one-section leaching chamber and a through-shaft spiral scheme, and uses thicker shaft diameters and other reinforcement methods to extend the length of the leaching chamber as much as possible. Equipment products have been successfully applied in some domestic and foreign enterprises, 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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Embodiment

[0019] The inclined leaching chamber of the present invention is designed with two parallel opposite screw shafts 8 and 9, with continuous screw blades 10 or intermittent blades 11 covered with small holes; the screw shaft is composed of multiple sections, and the two screw shafts are connected The points are staggered, the connecting bearing 12 is connected with the frame of the upper wall of the leaching tank by connecting rods 13 which can be adjusted and positioned to form a hanging support. 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 tilted at an elevation angle of 8 degrees, the center distance of the two helical shafts in the leaching chamber is 350MM, the outer diameter of the spiral blades is Ф400MM, the inner diameter of the main shaft is Ф89MM, and the pitch is 215MM. , the total length of 12000MM.

[0020] How it work...

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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 leaching and extraction equipment for effective components of natural plants and other raw materials. In particular, a continuous countercurrent extraction equipment used for large-scale extraction production. technical background [0002] In order to change the backwardness of production technology and equipment for extracting traditional Chinese medicine and natural plants, and solve the problems of traditional extraction tank extraction and production of traditional Chinese medicinal materials and melting medium, large consumption and energy consumption, low process leaching rate, and large batch-to-batch differences in active ingredients, in recent years, Many designs of continuous countercurrent extraction equipment have emerged, such as: trough type continuous countercurrent extraction machine, drag chain type continuous countercurrent extraction equipment, folding type continuous countercurrent extraction equipment, st...

Claims

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Application Information

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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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