Green continuous extraction device

Abstract

The utility model discloses a green continuous extraction device which comprises a heating tank, a condenser arranged on the rear side of the heating tank, an extraction tank arranged on the rear side of the condenser, an extraction cavity arranged in the extraction tank, a condensate outlet arranged at the upper end of the extraction cavity and corresponding to the condenser, a sieve plate arranged in the extraction cavity, and a stirring mechanism arranged on the upper side of the sieve plate. A return pipe connected with the heating tank is arranged on the lower side of the extraction tank; the stirring mechanism comprises a rotating shaft fixed on the upper side of the sieve plate through a fixing frame. The contact effect of medicinal materials and an extracting solution can be improved, so that the extraction effect is improved.

Description

Technical Field

[0001] The utility model relates to a continuous extraction device, in particular to a green continuous extraction device. Background Technique

[0002] Natural effective substances in plants refer to chemical components existing in plants and beneficial to human health. These substances can have various effects, including medicinal, nutritional, antioxidant, anti-inflammatory, antibacterial, etc. Playing an important role in human health, extraction devices are usually used to extract these active ingredients. The extraction process generally includes the following steps: pretreatment, extraction, separation, etc. When extracting plant components with extraction devices, a stirring device is often used to stir the plant medicinal materials and the extraction liquid to extract the active ingredients in the traditional Chinese medicine.

[0003] For example, the patent with the application number 202220521259.0 discloses an aqueous-phase closed-loop continuous extraction device. Through the mutual cooperation among the impeller, the stirring claws and the stirring protrusions, when the condensed vapor impacts the surface of the impeller in the form of a water flow, it will drive the impeller to rotate rapidly, and the stirring claws and the stirring protrusions will rotate accordingly to evenly stir the Chinese medicinal materials in the medicinal material box. At the same time, the high-purity extraction liquid is dispersed and evenly mixed with the Chinese medicinal materials to extract the required components in the Chinese medicinal materials without the need to rely on external power, with powerful functions. The setting of the stirring rod enables the extraction liquid to be fully mixed with the extracted components of the Chinese medicinal materials. However, due to the fixed stirring position of the stirring claws and the fact that the medicinal materials are prone to accumulate together under the action of the liquid, the extraction effect is poor. Content of the Utility Model

[0004] The purpose of the utility model is to provide a green continuous extraction device, which can improve the contact effect between the medicinal materials and the extraction liquid, thereby improving the extraction effect.

[0005] The technical solution of the utility model: A green continuous extraction device includes a heating tank. A condenser is arranged at the rear side of the heating tank, and an extraction tank is arranged at the rear side of the condenser. An extraction chamber is arranged inside the extraction tank. A condensate outlet corresponding to the condenser is arranged at the upper end of the extraction chamber. A sieve plate is arranged inside the extraction chamber. A stirring mechanism is arranged above the sieve plate. A reflux pipe connecting the heating tank is arranged at the lower side of the extraction tank; The stirring mechanism includes a rotating shaft fixed above the sieve plate through a fixing frame. An impeller corresponding to the condensate outlet is arranged on the rotating shaft. A stirring shaft hinged to the rotating shaft is arranged below the impeller. A guiding frame for guiding the stirring shaft is arranged below the fixing frame.

[0006] In the above-mentioned green continuous extraction device, the guiding frame is provided with guiding grooves with continuously changing heights, and the guiding grooves are guiding grooves symmetrically mirror-imaged with respect to the rotating shaft.

[0007] In the above-mentioned green continuous extraction device, evenly distributed stirring blades are arranged on the stirring shaft.

[0008] In the above-mentioned green continuous extraction device, the extraction tank is provided with a side-opening material taking door, and the material taking door is located above the sieve plate.

[0009] Compared with the prior art, in the present utility model, the medicinal materials are placed on the sieve plate, and the condensed extraction liquid will fall into the extraction cavity. When the extraction liquid falls, it will cooperate with the impeller to drive the rotation of the rotating shaft, so that the rotating shaft drives the stirring shaft to stir the medicinal materials. Moreover, the guiding frame can play a role in guiding and limiting the stirring shaft, improving the stirring effect, making the extraction effect of medicinal components better, and the extraction liquid can circulate in the heating tank and the extraction tank, saving materials. Description of the Drawings

[0010] Figure 1 It is a schematic structural diagram of the present utility model.

[0011] The marks in the drawings are: 1 - heating tank, 2 - condenser, 3 - extraction tank, 4 - sieve plate, 5 - return pipe, 6 - rotating shaft, 7 - fixing frame, 8 - extraction cavity, 9 - condensate outlet, 10 - impeller, 11 - stirring shaft, 12 - guiding frame, 13 - guiding groove, 14 - stirring blade, 15 - material taking door. Detailed Embodiments

[0012] The following further illustrates the present utility model in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present utility model.

[0013] Embodiment. A green continuous extraction device is configured as Figure 1 shown, including a heating tank 1. A condenser 2 is provided at the rear side of the heating tank 1, an extraction tank 3 is provided at the rear side of the condenser 2, an extraction cavity 8 is provided inside the extraction tank 3, a condensate outlet 9 corresponding to the condenser 2 is provided at the upper end of the extraction cavity 8, a sieve plate 4 is provided inside the extraction cavity 8, a stirring mechanism is provided above the sieve plate 4, and a return pipe 5 connecting the heating tank 1 is provided at the lower side of the extraction tank 3; the stirring mechanism includes a rotating shaft 6 fixed above the sieve plate 4 through a fixing frame 7, an impeller 10 corresponding to the condensate outlet 9 is provided on the rotating shaft 6, a stirring shaft 11 hinged to the rotating shaft 6 is provided below the impeller 10, and a guiding frame 12 for guiding the stirring shaft 11 is provided below the fixing frame 7.

[0014] The guiding frame 12 is provided with guiding grooves 13 with continuously changing heights, and the guiding grooves 13 are guiding grooves symmetrically mirror-imaged with respect to the rotating shaft 6.

[0015] The stirring shaft 11 is provided with uniformly distributed stirring blades 14.

[0016] The extraction tank 3 is provided with a side-opening material taking door 15, and the material taking door 15 is located above the sieve plate 4.

[0017] Principle of the present utility model: For the medicinal plants of this application, the charging and discharging are carried out by opening the charging door 15, and the amount of medicinal materials is less than the height of the guide frame 12. Then, the heating tank 1 is started. The heating tank 1 can circulate the extraction liquid, and the active ingredients will remain in the heating tank 1. The vaporized extraction liquid will condense in the condenser 2 and be discharged through the condensate outlet 9 in the extraction chamber 8. When the extraction liquid drips, it will drip on the impeller 10, driving the impeller 10 to rotate. The impeller 10 will cooperate with the rotating shaft 6 to drive the rotating shaft 6 to rotate. During the rotation of the rotating shaft 6, the stirring shaft 11 can stir the medicinal materials, enabling the extraction liquid to extract the active ingredients from the medicinal materials. However, when the stirring position remains unchanged, the leafy medicinal materials are prone to accumulate together, resulting in a relatively constant contact position between the extraction liquid and the leaves, and the extraction effect is poor. In this application, the stirring shaft 11 is hinged to the rotating shaft 6. During the rotation of the rotating shaft 6, the stirring shaft 11 will move along the guide groove 13 in the guide frame 12, so that the stirring shaft 11 can continuously change its angle, improving the stirring effect, enabling the extraction liquid to fully contact with the medicinal materials, and extracting the active ingredients from the medicinal materials. Then, the extraction liquid will flow back to the heating tank 1, and in the heating tank 1, the extraction liquid will vaporize again, and the concentration of the medicinal components in the heating tank 1 will continuously increase. This device can reduce the use of the extraction liquid and is more environmentally friendly.

Claims

1. A green continuous extraction device, characterized in that: The invention comprises a heating tank (1), wherein a condenser (2) is arranged at the rear side of the heating tank (1), an extraction tank (3) is arranged at the rear side of the condenser (2), an extraction chamber (8) is arranged in the extraction tank (3), a condensate outlet (9) corresponding to the condenser (2) is arranged at the upper end of the extraction chamber (8), a sieve plate (4) is arranged in the extraction chamber (8), a stirring mechanism is arranged at the upper side of the sieve plate (4), and a reflux pipe (5) connected to the heating tank (1) is arranged at the lower side of the extraction tank (3); the stirring mechanism comprises a rotating shaft (6) fixed to the upper side of the sieve plate (4) by a fixing frame (7), an impeller (10) corresponding to the condensate outlet (9) is arranged on the rotating shaft (6), a stirring shaft (11) hinged to the rotating shaft (6) is arranged at the lower side of the impeller (10), and a guide frame (12) for guiding the stirring shaft (11) is arranged under the fixing frame (7).

2. A green continuous extraction device according to claim 1, characterized in that: The guide frame (12) is provided with a guide groove (13) whose height is constantly changing, and the guide groove (13) is a guide groove that is mirror-symmetrical with respect to the rotating shaft (6).

3. A green continuous extraction device according to claim 1, characterized in that: The stirring shaft (11) is provided with stirring blades (14) distributed evenly.

4. A green continuous extraction device according to claim 1, characterized in that: The extraction tank (3) is provided with a side-opening material taking door (15), and the material taking door (15) is located on the upper side of the sieve plate (4).

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