CN201208517Y - Natural herbals light-oil heavy-oil extraction device - Google Patents

Abstract

The utility model discloses a natural herbal light oil and heavy oil extractor, which belongs to the extracting technology field of natural herbal materials and comprises a condensing tube, a steam collection tube, a water cycle return conduit, a vaporizer and an oil-water separator. A control valve is arranged in the water cycle return conduit; an included angle A between the steam collection tube and the oil-water separator ranges from 65 to 120 degrees; an included angle B between the steam collection tube and the water cycle return conduit ranges from 15 to 75 degrees. The natural herbal light oil and heavy oil extractor has reasonable design, simple structure and convenient operation, blends a light oil extracting device and a heavy oil extracting device together, is suitable for the extraction of the natural herbal light oil and heavy oil which are the volatile oil in two densities, not only meets the needs of experimental study, but also satisfies the large-scale production request, and also satisfies the extraction of the volatile oil in different densities.

Description

Natural herbal light oil heavy oil extractor

technical field

The utility model belongs to the technical field of extraction of natural herbal substances, and in particular relates to a device suitable for extracting volatile oils with two densities of natural herbal light oil and heavy oil.

Background technique

Extracting volatile oil from natural herbs is a troublesome process because the volatile oil content of plants is very small. Therefore, it takes a lot of plants to extract a small amount of volatile oil, which ends up being very expensive. For example: about 3 to 5 tons of rose petals can extract 1 kg of rose volatile oil; about 200 kg of fresh lavender can extract 1 kg of lavender volatile oil; about 1 ton of orange flower petals can extract 1 kg of neroli volatile oil; about 3000 lemons can be squeezed It takes about 6-7 tons of lemon balm to extract 1kg of lemon volatile oil, which is the most difficult herbal volatile oil to extract.

At present, there are many methods for extracting volatile oil from natural herbal medicines, generally there are the following:

1. Steam distillation: This method is simple to operate and low in cost, and is the most commonly used extraction method. Put the fresh or dried aromatic plant material into the still and heat it, so that the volatile oil in the plant evaporates with the steam. After the water vapor containing volatile oil is collected and cooled through the tube, the vapor will be cooled into liquid, and then separated according to the specific gravity and density difference between water and volatile oil. Among the remaining water, there are more or less volatile oils dissolved in it. This is the so-called flower water, and most of the volatile oils are extracted by this method. 2. Freezing compression method (pressing method): This method is specially used to extract the volatile oil stored in the peel. 3. Chemical solvent extraction: This method is a common extraction method for volatile oils of gums, resins and flowers. 4. Grease separation method (fat suction method): This method is an expensive extraction method of flower volatile oil. 5. Supercritical carbon dioxide extraction method: This method is a very expensive method. 6. Soaking method (soaking oil): In this method, the flowers are soaked in hot oil to release the volatile oil in the plant, and then extracted by filtration.

Compared with these six methods, the most commonly used, simple and low-cost essential oil extraction method is steam distillation. The volatile oil obtained by the steam distillation method is evaporated together with the water vapor. After the water vapor containing the volatile oil is collected and cooled through a tube, the steam will be cooled into a liquid, and then separated according to the specific gravity and density difference between water and volatile oil. Thereby obtaining pure volatile oil. According to the comparison of the density of volatile oil and water, volatile oil is divided into light oil and heavy oil. That is: light oil is lighter than water, and heavy oil is heavier than water. At present, for the extraction of these two kinds of volatile oils, two sets of different devices are used. This requires the use of different devices according to the density properties of the volatile oil. For large-scale production, the disassembly of the instrument is very inconvenient and has serious safety hazards.

Utility model content

Aiming at the above-mentioned deficiencies in the prior art, the technical problem to be solved by the utility model is to provide a natural herbal light oil heavy oil extractor, which integrates the light oil extraction device and the heavy oil extraction device, and is suitable for both natural herbal light oil and heavy oil. Extraction of volatile oils of various densities.

The technical scheme of the utility model is: the extractor of natural herbal light oil and heavy oil contains a condensation pipe, a steam collection pipe, a water circulation return pipe, a distiller, and an oil-water separator, and a control valve is arranged in the water circulation return pipe, and the steam collection pipe and the oil-water separator The included angle A between them is 65-120 degrees, and the included angle B between the steam collecting pipe and the water circulation return pipe is 15-75 degrees.

The volume of the distiller is 500-50,000ml. The outer diameter of the steam collecting pipe is 10-30mm, and the inner diameter is 5-20mm. The condensing pipe is a 15-50cm serpentine condensing pipe. The volume of the oil-water separator is 10-500mL. The outer diameter of the water circulation return pipe is 10-30mm, and the inner diameter is 5-20mm.

The utility model is reasonable in design, simple in structure and convenient in operation. It integrates the light oil extraction device and the heavy oil extraction device, and is suitable for the extraction of volatile oils with two densities of natural herbal light oil and heavy oil. It not only meets the needs of experimental research, but also meets the needs of large-scale production. Requirements; meet the extraction of different densities of volatile oils.

Description of drawings

Accompanying drawing 1 is the structural representation of an embodiment of the utility model.

The marks in the accompanying drawings are described as follows: 1—distiller; 2—steam collection pipe; 3—condensation pipe; 4—oil-water separator; 5—water circulation return pipe; 6—discharging valve; 7—control valve.

Detailed ways

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail. As shown in Figure 1, a control valve 7 is provided in the water circulation return pipe 5, the angle A between the steam collection pipe 2 and the oil-water separator 4 is 75 degrees, and the steam collection pipe 2 and the return circulation pipe 5 The included angle B is 65 degrees. When using the utility model to work, natural herbal medicine and water are put into distiller 1, and the volume of natural herbal medicine and water is between 1/2-3/4 of distiller 1 volume. During the extraction, the natural herbal medicine and water are heated to boiling in the distiller 1, and the water vapor carrying the volatile oil is collected through the steam collection pipe 2 and rises to the condensation pipe 3. The condensed oil-water mixture drops into the oil-water separator 4 to complete the oil-water separation. For light oil, after oil-water separation, the volatile oil is located in the upper layer, and the water is located in the lower layer; at this time, the valve 6 on the water circulation return pipe 5 is opened, and the water in the lower layer flows back to the distiller 1 through the return pipe 5 for recycling. For heavy oil, after oil-water separation, the volatile oil is located in the lower layer, and the water is located in the upper layer. At this time, the valve 6 on the water circulation return pipeline is closed, and the water in the upper layer flows back to the distiller 1 through the steam collection pipe 2 for recycling.

Below is the example that adopts the pictorial extractor of the present utility model to carry out natural herbal light oil heavy oil extraction:

Example 1, cumin oil (light oil) extraction:

In a 2,000mL distiller, a steam collection pipe with an outer diameter of 10mm and an inner diameter of 5mm, a 25cm serpentine condenser, a 20mL oil-water separator and a water circulation return pipe with an outer diameter of 10mm and an inner diameter of 5mm are used to extract Cumin light oil.

Take 200g of cumin and 1,000g of water into a distiller, let it stand for 24 hours, then heat to a slight boil. After extracting for 5 hours, stand still for 12 hours to collect the cumin oil in the oil-water separator. The obtained fennel oil was a yellow-green oily liquid with a yield of 2.1%, a density of 0.92 and a refractive index of 1.48.

2. Extraction of clove bud oil (heavy oil):

In a 5,000mL distiller, a steam collection pipe with an outer diameter of 20mm and an inner diameter of 10mm, a 50cm serpentine condenser, a 50mL oil-water separator and a water circulation return pipe with an outer diameter of 20mm and an inner diameter of 10mm are used to extract Heavy oil of clove buds.

Take 500g of clove buds and put 3,000g of water into a distiller, let it stand for 24 hours, then heat to a slight boil. After extracting for 5 hours, stand still for 12 hours to collect the clove bud oil in the oil-water separator. The obtained clove bud oil is a colorless oily liquid with a yield of 1.8%, a density of 1.05 and a refractive index of 1.53.

Claims (6)

1, a kind of natural herbal light oil heavy oil extraction device, contain condenser pipe, steam collecting pipe, water circulating reflux pipe, distiller, oil water separator, it is characterized in that: a control valve (7) is set in the water circulating reflux pipe (5), included angle A between steam collecting pipe (2) and the oil water separator (4) is 65～120 degree, and the included angle B between steam collecting pipe (2) and the water circulating reflux pipe (5) is 15～75 degree.

2, natural herbal light oil heavy oil extraction device according to claim 1, it is characterized in that: the volume of described distiller (1) is 500-50,000ml.

3, natural herbal light oil heavy oil extraction device according to claim 1, it is characterized in that: described vapor collection pipe (2) external diameter is 10-30mm, and internal diameter is 5-20mm.

4, natural herbal light oil heavy oil extraction device according to claim 1, it is characterized in that: described condenser pipe (3) is 15-50cm serpentine condenser.

5, natural herbal light oil heavy oil extraction device according to claim 1, it is characterized in that: the volume of described oil water separator (4) is 10-500mL.

6, natural herbal light oil heavy oil extraction device according to claim 1, it is characterized in that: the external diameter of described water circulating reflux pipe (5) is 10-30mm, internal diameter is 5-20mm.

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