Alcohol precipitation control method

A control method, alcohol precipitation technology, applied in temperature control, separation method, comprehensive factory control, etc., can solve problems such as high cost and impact

Active Publication Date: 2021-04-13
TAIJI GRP CHONGQING FULING PHARM FACTORY CO LTD
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  • Claims
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Problems solved by technology

However, since the invention uses the sending and receiving of optical signals to detect the solid-liquid interface, a light source generator needs to be installed in the alcohol precipitation tank, so the cost is high, and it will cause damage to the photosensitive active ingredients in the traditional Chinese medicine alcohol precipitation solution. influences

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Embodiment Construction

[0038] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0039] It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate ...

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Abstract

The invention discloses an alcohol precipitation control method which comprises the following steps: adding traditional Chinese medicine extract and ethanol into an alcohol precipitation tank, and performing stirring; when the preset stirring time expires, enabling a controller to shut down a stirring motor; using a radio frequency admittance level meter for detecting the capacitance and the total liquid level of alcohol precipitation liquid; using the controller for calculating the height of a solid-liquid interface in real time according to a pre-established detection model and a detection result of the radio frequency admittance level meter; and if the height of the solid-liquid interface remains unchanged within a preset time threshold, opening a supernatant liquid outlet valve to enable the supernatant to discharge liquid. The alcohol precipitation control method provided by the invention can realize real-time online detection of the solid-liquid interface in the traditional Chinese medicine alcohol precipitation process and rapid detection of the traditional Chinese medicine alcohol precipitation end point, and the separation efficiency in the traditional Chinese medicine alcohol precipitation process is improved.

Description

technical field [0001] The invention relates to the field of traditional Chinese medicine production, in particular to a method for controlling alcohol precipitation. Background technique [0002] Chinese herbal medicines are first extracted with water, and then add an appropriate amount of ethanol at a certain concentration to remove impurities such as protein and tannin. . Because of its simple operation steps, relatively low cost, and high efficiency of impurity removal, the alcohol precipitation process has been the preferred separation and impurity removal technology for Chinese traditional medicine manufacturers in recent decades. The control precision of the alcohol precipitation process is closely related to the safety, stability and effectiveness of traditional Chinese medicine products. [0003] At present, the main process of the domestic traditional Chinese medicine alcohol precipitation process is: add ethanol to the alcohol precipitation tank while stirring. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D23/20
CPCG05D23/20B01D21/30B01D21/34B01D21/286B01D21/02Y02P90/02
Inventor 黄国才潘宇刘宁张伟孙勇赵兴
Owner TAIJI GRP CHONGQING FULING PHARM FACTORY CO LTD
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