Spice extraction equipment based on alcohol heat extraction process

Abstract

The utility model relates to the technical field of spice extraction, and discloses spice extraction equipment based on an alcohol hot extraction process, which comprises an extraction tank I, an extraction tank II, an alcohol preheating tank and an extracting solution recycling tank, three groups of spice iron frames are arranged on the front surfaces of the extraction tank I and the extraction tank II and are used for loading materials, and the extracting solution recycling tank is used for recycling the materials. The extraction tank I and the extraction tank II are connected in series with a plate exchange device through communicating pipes; a discharge hole formed in the top of the extraction tank I is communicated with a feed hole formed in the bottom of the extraction tank II through a plate exchange device. Compared with the standing extraction design of the traditional extraction equipment, the extraction tank of the equipment adopts a three-layer iron frame structure inside, spices are stacked in a layered manner, alcohol enters from the bottom and flows to the top, flowing thrust from bottom to top is formed in the extraction tank, the spices are in full contact with the alcohol under the action of the thrust and gravity, and the spices are fully extracted. The extraction efficiency can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of spice extraction, in particular to a spice extraction device based on an alcohol hot extraction process. Background Technique

[0002] Natural spices are collectively referred to as natural plant raw materials with special flavors and are one of the indispensable raw materials in the food industry. They contain rich substances such as terpenoids, alcohols, and ethers, endowing the spices with rich and special flavors. In industrial production, spices are often applied in the form of solvent extraction to fully release the flavor substances of the spices and improve the utilization efficiency. Among many solvent extraction processes, alcohol hot extraction is a choice with high extraction effect and production efficiency. As an organic solvent, alcohol can fully incorporate the flavor substances in the spices, and heating extraction can accelerate the molecular movement of the flavor substances and improve the extraction efficiency.

[0003] However, among the current spice extraction devices, there are few large-scale production devices suitable for the alcohol hot extraction process, and there are problems such as lack of protection against alcohol vapor, complex structure, inconvenience in continuous production, and low raw material utilization rate. Therefore, there is still a large room for optimization in the alcohol hot extraction device for spices.

[0004] Therefore, we provide a spice extraction device based on an alcohol hot extraction process. Content of the Utility Model

[0005] The purpose of the utility model is to provide a spice extraction device based on an alcohol hot extraction process to solve the problems mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A spice extraction device based on an alcohol hot extraction process, including an extraction tank one, an extraction tank two, an alcohol preheating tank, and an extraction liquid recovery tank. Three groups of spice iron frames are arranged on the front of both the extraction tank one and the extraction tank two for loading materials. Both the extraction tank one and the extraction tank two are connected in series with a plate heat exchanger through a connecting pipe; the discharge port provided at the top of the extraction tank one is connected to the feed port provided at the bottom of the extraction tank two through the plate heat exchanger; the feed ports provided at the bottoms of the extraction tank one and the extraction tank two are both connected to the alcohol preheating tank through a diaphragm pump; the discharge ports provided at the tops of the extraction tank one and the extraction tank two are both connected to the extraction liquid recovery tank through a diaphragm pump.

[0007] Preferably, the water inlet of the heat preservation interlayer provided in the extraction tank one, the extraction tank two, the alcohol preheating tank, and the extraction liquid recovery tank is connected to the workshop hot water through a connecting pipe, and the water temperature is adjusted through a plate heat exchanger.

[0008] Preferably, the water outlet of the heat-insulating interlayer of the first extraction tank, the second extraction tank, the alcohol preheating tank, and the extraction liquid recovery tank is connected to a hot water recovery tank through a connecting pipe.

[0009] Preferably, the upper and lower parts of the first extraction tank and the second extraction tank are sealed with flange covers. Thermometers and pressure gauges are respectively provided on the upper and lower parts of the outer wall. The pressure gauges monitor the temperature and pressure at the feeding port and discharging port of the equipment, and an observation window is provided in the middle.

[0010] Preferably, 200-mesh sieve plates are provided on the upper and lower flange covers inside the first extraction tank and the second extraction tank to prevent the outflow of spice debris.

[0011] Preferably, the first extraction tank, the second extraction tank, and the alcohol preheating tank are also provided with sealable circular covers, which can be used for observation and sampling.

[0012] Preferably, the first extraction tank, the second extraction tank, the alcohol preheating tank, and the extraction liquid recovery tank are provided with water seal devices, which can be used to prevent the leakage of alcohol vapor.

[0013] The utility model provides a spice extraction device based on an alcohol hot extraction process, which has the following beneficial effects:

[0014] (1) By comparing with the static extraction design of traditional extraction equipment, the extraction tank of this equipment adopts a three-layer iron frame structure inside, and the spices are stacked in layers. At the same time, alcohol enters from the bottom and flows to the top, forming an upward flow thrust in the extraction tank. Under the action of the thrust and gravity, the spices are in full contact with alcohol, which can improve the extraction efficiency.

[0015] (2) The extraction temperature of the alcohol hot extraction process of the utility model is usually set at about 75 °C, slightly lower than the boiling point of alcohol 78.3 °C. However, the temperature fluctuation and the natural volatilization of alcohol are inevitable during the production process. The accumulation of alcohol vapor in the environment will have a safety risk of flash combustion. Therefore, this equipment is provided with a water seal and a temperature control device. The former can absorb the alcohol vapor to avoid escaping into the production environment, and the latter can accurately control the extraction temperature to reduce alcohol volatilization. At the same time, for the placement environment of the extraction equipment, safety measures such as an electrostatic elimination device and an alcohol vapor monitor can be set to further improve the safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of the spice extraction device of the utility model.

[0017] In the figure: 11 the first extraction tank, 12 the second extraction tank, 2 spice iron frame, 3 thermometer, 4 pressure gauge, 5 sieve plate, 6 plate heat exchanger device, 7 connecting pipe, 8 diaphragm pump, 9 alcohol preheating tank, 10 water seal device, 11 plate heat exchanger, 12 extraction liquid recovery tank. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, in combination with the accompanying drawings in the embodiments of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present utility model, and should not be construed as a limitation to the present utility model.

[0020] A preferred embodiment of a spice extraction device based on an alcohol hot extraction process provided by the present utility model is as Figure 1 shown: A spice extraction device based on an alcohol hot extraction process includes an extraction tank one 01, an extraction tank two 02, an alcohol preheating tank 9, and an extraction liquid recovery tank 12. Three groups of spice iron frames 2 are provided on the front of the extraction tank one 01 and the extraction tank two 02 for loading materials. The extraction tank one 01 and the extraction tank two 02 are both connected in series with a plate heat exchanger device 6 through a connecting pipe 7;

[0021] Furthermore, it is obtained that the discharge port provided at the top of the extraction tank one 01 is connected to the feed port provided at the bottom of the extraction tank two 02 through the plate heat exchanger device 6;

[0022] Furthermore, it is obtained that the feed ports provided at the bottoms of the extraction tank one 01 and the extraction tank two 02 are both connected to the alcohol preheating tank 9 through a diaphragm pump 8;

[0023] Furthermore, it is obtained that the discharge ports provided at the tops of the extraction tank one 01 and the extraction tank two 02 are both connected to the extraction liquid recovery tank 12 through a diaphragm pump 8;

[0024] Furthermore, it is obtained that the insulation layer water inlets provided on the extraction tank one 01, the extraction tank two 02, the alcohol preheating tank 9, and the extraction liquid recovery tank 12 are connected to the workshop hot water through a connecting pipe 7, and the water temperature is adjusted through a plate heat exchanger 11. The insulation layer water outlets provided on the extraction tank one 01, the extraction tank two 02, the alcohol preheating tank 9, and the extraction liquid recovery tank 12 are connected to a hot water recovery tank through a connecting pipe 7;

[0025] Furthermore, it is obtained that the extraction tank one 01 and the extraction tank two 02 are sealed with flange covers up and down, and thermometers 3 and pressure gauges 4 are respectively provided on the upper and lower parts of their outer walls. The pressure gauges monitor the temperature and pressure at the feed port and the discharge port of the equipment, and an observation window is provided in the middle;

[0026] Furthermore, it is obtained that 200-mesh sieve plates 5 are provided on the upper and lower flange covers inside the first extraction tank 01 and the second extraction tank 02 to prevent the outflow of spice debris.

[0027] Furthermore, it is obtained that the first extraction tank 01, the second extraction tank 02, and the alcohol preheating tank 9 are also provided with sealable circular covers, which can be used for observation and sampling.

[0028] Furthermore, it is obtained that the first extraction tank 01, the second extraction tank 02, the alcohol preheating tank 9, and the extract recovery tank 12 are provided with a water seal device 10, which can be used to prevent the leakage of alcohol vapor.

[0029] This design adopts a two-stage series connection design for the extraction tanks. When alcohol flows through the first extraction tank 01, the concentration of aroma substances rises rapidly to form the No. 1 extract. Then it continues to flow through the second extraction tank 02, and the concentration is further increased to finally form the high-concentration No. 2 extract. At this time, the aroma substances in the spices in the first extraction tank 01 are basically extracted, while in the second extraction tank 02, because the No. 1 extract already contains a certain amount of aroma substances, the extraction effect is not as good as that of the first extraction tank 01, and there are still many aroma substances remaining. Therefore, in the second production cycle, the first extraction tank 01 is replaced with new spices and placed at the back, and the second extraction tank 02 is placed at the front. The newly replaced alcohol first flows through the second extraction tank 02 to absorb the remaining aroma substances, and then flows through the first extraction tank 01 replenished with new spices to further increase the concentration. This process is repeated every production cycle, which can not only produce high-concentration spice extracts but also improve the utilization rate of spices, showing obvious advantages compared with the traditional equipment of the single extraction process. The materials are loaded into the spice iron frames and placed in the extraction tanks. The first extraction tank 01 and the second extraction tank 02 are connected in series through the plate heat exchanger device 6. The top discharge port of the first extraction tank 01 is connected to the feed port of the second extraction tank 02 in the plate heat exchanger device, and the discharge port of the second extraction tank 02 is connected to the feed pipe of the extract recovery tank 12. After the alcohol material is heated to the process requirement temperature in the preheating tank, it is pumped by the diaphragm pump and flows through the first extraction tank 01 to form the No. 1 extract, then flows through the second extraction tank 02 to form the No. 2 extract, and finally is pumped to the extract recovery tank 12 to complete one production cycle.

[0030] Subsequently, the first extraction tank 01 is replaced with new spices, the alcohol preheating tank 9 is replenished with alcohol and preheated. The discharge pipe of the preheating tank is switched to the feed port of the second extraction tank 02, the discharge port of the second extraction tank 02 is switched to the feed port of the first extraction tank 01, and the discharge port of the first extraction tank 01 is connected to the feed pipe of the extract recovery tank 12 to start the second production cycle. Subsequently, the production operation is repeated in this way to achieve continuous production.

[0031] In use, assemble and connect each device according to the design requirements, ensure the tightness of the device and each connection, and clean the device for standby; put the selected and cleaned spices into the screen iron frame supporting the extraction tank, and put them into the extraction tank 1 (01) and the extraction tank 2 (02) in sequence; introduce alcohol into the alcohol preheating tank 9, and turn on the plate heat exchanger 11 to preheat the alcohol; after all the devices and installations are ready, start the pumping pump, pump the alcohol into the extraction tank 1 (01) and the extraction tank 2 (02) in sequence, and finally become the spice extraction liquid, which is channeled into the extraction liquid recovery tank 12, and cooled down in the recovery tank. After being drawn out and stored separately, one production cycle is completed;

[0032] Before the start of the next production cycle, inject alcohol into the alcohol preheating tank 9 again for preheating. The aroma substances of the spices in the extraction tank 1 (01) have been basically extracted, while the extraction tank 2 (02) has more residual aroma substances due to its position at the back. Replace the spices in the extraction tank 1 (01) with new ones, and place the extraction tank 1 (01) behind the extraction tank 2 (02) through the plate heat exchange device 6. The alcohol in the preheating tank enters the extraction tank 1 (01) from the extraction tank 2 (02), and a new round of production cycle begins, and then this process is continuously produced and circulated.

[0033] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A spice extraction device based on an alcohol hot extraction process, comprising an extraction tank 1 (01), an extraction tank 2 (02), an alcohol preheating tank (9), and an extract recovery tank (12), characterized in that: The front of the extraction tank 1 (01) and the extraction tank 2 (02) are both provided with three groups of spice iron frames (2) for loading materials. The extraction tank 1 (01) and the extraction tank 2 (02) are both connected in series with a plate exchange device (6) through a connecting pipe (7); The discharge port provided at the top of the extraction tank 1 (01) is connected to the feed port provided at the bottom of the extraction tank 2 (02) through a plate exchange device (6); The feed inlets at the bottom of the extraction tank 1 (01) and the extraction tank 2 (02) are both connected to the alcohol preheating tank (9) via a diaphragm pump (8); The discharge ports arranged at the top of the extraction tank 1 (01) and the extraction tank 2 (02) are both connected to the extraction liquid recovery tank (12) through a diaphragm pump (8).

2. A spice extraction equipment based on alcohol hot extraction process according to claim 1, characterized in that: The water inlets of the heat-insulating layers of the extraction tank 1 (01), the extraction tank 2 (02), the alcohol preheating tank (9), and the extract recovery tank (12) are connected to the hot water in the workshop through a connecting pipe (7), and the water temperature is adjusted through a plate heat exchanger (11).

3. The spice extraction equipment based on alcohol hot extraction process according to claim 1 is characterized in that: The water outlets of the heat-insulating layers of the extraction tank 1 (01), the extraction tank 2 (02), the alcohol preheating tank (9) and the extract recovery tank (12) are connected to the hot water recovery tank through a connecting pipe (7).

4. The spice extraction equipment based on alcohol hot extraction process according to claim 1 is characterized in that: The extraction tank 1 (01) and the extraction tank 2 (02) are sealed with flange covers at the top and bottom, and a thermometer (3) and a pressure gauge (4) are respectively arranged at the top and bottom of the outer walls thereof, and an observation window is arranged in the middle.

5. The spice extraction equipment based on alcohol hot extraction process according to claim 1 is characterized in that: The upper and lower flange covers inside the extraction tank 1 (01) and the extraction tank 2 (02) are provided with 200-mesh sieve plates (5).

6. The spice extraction equipment based on alcohol hot extraction process according to claim 1 is characterized in that: The extraction tank 1 (01), the extraction tank 2 (02) and the alcohol preheating tank (9) are also provided with a sealable circular cover.

7. The spice extraction equipment based on alcohol hot extraction process according to claim 1 is characterized in that: The extraction tank 1 (01), the extraction tank 2 (02), the alcohol preheating tank (9), and the extract recovery tank (12) are provided with a water sealing device (10).

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