Chinese herbal medicine residue recycling process

A technology for Chinese herbal medicine and medicinal residues, which is applied in the field of Chinese herbal medicine residues recovery technology, and can solve problems such as waste of medicinal residues ethanol or petroleum ether and the like

Inactive Publication Date: 2015-07-29
温州市凯杰药机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, many Chinese herbal medicines on the market will add ethanol or petroleum ether during the production process. After the medicine is extracted, the Chinese herbal medicine dregs will be

Method used

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  • Chinese herbal medicine residue recycling process

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Embodiment 1: In this embodiment, when extracting ethanol (ethanol liquid density is 0.789g / cm3(20C°), ethanol gas density is 1.59kg / m3, boiling point is 78.4 ℃, melting point is -114.3 ℃, flammable, its vapor can form an explosive mixture with air, and can be miscible with water in any ratio) or petroleum ether (the boiling range of petroleum ether is 60-90℃), the heating temperature in the stirring tank is 70℃ , the working pressure in the stirring tank is 0.08MPa, the stirring paddle in the stirring tank stirs the Chinese herbal medicine dregs at 20 rad / min, and the heating temperature in the stirring tank is set to 70°C, with the Chinese herbal medicine dregs at this temperature Continue heating, and cooperate with the working pressure in the stirring tank to be 0.08MPa and the stirring paddle to stir the Chinese herbal medicine dregs at 20 rad / min, so that when the Chinese herbal medicine dregs are stirred at a lower stirring speed, the temperature in the stirring t...

Embodiment 2

[0037] Embodiment 2: In this embodiment, when extracting ethanol or petroleum ether from Chinese herbal medicine dregs, the heating temperature in the stirring tank is set to 100°C, the working pressure in the stirring tank is 0.15MPa, and the stirring paddle in the stirring tank Stir the Chinese herbal medicine dregs at 35 rad / min, and control the heating temperature at 100°C, so that ethanol or petroleum ether can be volatilized or evaporated from the Chinese herbal medicine dregs relatively quickly, and the stirring blade is stirred at 35 rad / min, which improves the The heating uniformity of Chinese herbal medicine dregs, but too high temperature and too fast speed may lead to waste of power resources, and too high temperature may cause other impurities in the evaporated ethanol or petroleum ether.

[0038]As preferred in the following examples, the stirring paddle stirs the Chinese herbal medicine dregs at 30rad / min, and according to the efficiency of stirring the added Chi...

Embodiment 3

[0039] Embodiment 3: In this embodiment, as a preference, when extracting ethanol from Chinese herbal medicine dregs, the heating temperature in the stirring tank is 80° C., and the working pressure in the stirring tank is 0.09 MPa. The temperature is controlled at 80°C because the boiling point of ethanol is 78.4°C at normal temperature and pressure. The production of water or other impurities in the mixture affects the extraction of the purity of ethanol from the residue of Chinese herbal medicine. The working pressure in the stirring tank is reduced to 0.09MPa, which can reduce the boiling point of ethanol or petroleum ether, so that the stirring tank can be heated during the heating process. The middle block reaches the boiling point of evaporation, thereby saving the power consumption required for heating.

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Abstract

The invention discloses a Chinese herbal medicine residue recycling process, belongs to the field of extraction application of Chinese herbal medicines, and aims to provide the Chinese herbal medicine residue recycling process which is capable of efficiently recycling ethyl alcohol and petroleum ether in the medicine residue. The invention adopts the technical scheme that the recycling process comprises the following steps: step 1), pouring Chinese herbal medicine residue into a stirring tank, heating the Chinese herbal medicine residue through a heating coiled pipe in the stirring tank, wherein the heating temperature is 70-100 DEG C; step 2), under the condition of the step 1), stirring the Chinese herbal medicine residue through stirring paddles in the stirring tank under the driving of an electromotor at the speed of 20-35 rad/min; step 3), under the condition of the step 1) and step 2), reducing the working pressure in the stirring tank through a sucking pump to enable the working pressure in the stirring tank to be 0.08-0.15 MPa; step 4), after the step 1), the step2) and the step 3) are finished, enabling a pre-extraction gas to be produced in the stirring tank; step 5), introducing the pre-extraction gas produced in the step 4) into a cooler condenser; step 6), cooling the pre-extraction gas under the action of a cooling coiled pipe in the cooler condenser.

Description

technical field [0001] The invention relates to the field of extraction and application of Chinese herbal medicines, more specifically, it relates to a recovery process of Chinese herbal medicine dregs. Background technique [0002] The Chinese herbal medicine mixing recovery machine includes a stirring tank, a stirring assembly, a condensation assembly connected to the stirring tank, and a heating assembly. After the required Chinese herbal medicine is put into the mixing tank and a certain amount of water is added, the driving source drives the stirring rod to perform stirring work. At the same time, the heating component heats the mixing tank, so that the mixed liquid in the stirring tank becomes gaseous and evaporates, and the mixed liquid becomes After becoming gaseous, it will move from the air outlet above the mixing tank to the condensing component, and the condensing component will condense the gaseous mixed liquid and collect it to obtain the required medicine. ...

Claims

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Application Information

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IPC IPC(8): B01D1/00B01D1/30
Inventor 章魁杰
Owner 温州市凯杰药机有限公司
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