Extraction device and extraction method for preparing plant extraction flavor liquid

Abstract

The invention discloses an extraction device and an extraction method for preparing a plant extraction flavor liquid, and relates to the technical field of flavor liquid preparation.The extraction device comprises an extraction tank, an input pipe, an output pipe and a separation balance structure, the top end of the extraction tank is communicated with a condenser through a pipeline, and one side of the condenser is communicated with an extraction liquid pipe; the top end of the extraction tank is fixedly connected with an input pipe, the end, located in the extraction tank, of the input pipe is communicated with a spiral pipe, the bottom end of the spiral pipe is fixedly connected with a hollow communicating vessel, and the inner wall of the hollow communicating vessel is communicated with inclined spray heads at equal intervals. And the raw materials can be heated more efficiently. The design of the spiral pipe and the inclined nozzle connected with the input pipe enables protective gas or other media to act on raw materials more uniformly, accelerates the extraction process of flavor components, fully obtains effective flavor components in plants, reduces resource waste and reduces production cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plant extraction flavor liquid preparation, in particular to an extraction device and method for preparing plant extraction flavor liquid. BACKGROUND

[0002] In many industries such as food, beverage, daily chemical, etc., plant extraction flavor liquid is favored due to its natural and unique flavor, and is widely used in product flavoring and other aspects. At present, the preparation process of plant extraction flavor liquid usually involves steps such as raw material extraction, ingredient separation, and addition of auxiliary materials. Traditional plant extraction devices usually use simple soaking or distillation methods for extraction, which has the problems of low extraction efficiency and insufficient extraction, and cannot fully obtain effective flavor components in plants, resulting in waste of resources and increased production cost. In the ingredient separation process, the commonly used separation equipment cannot effectively separate plant fibers and other impurities, resulting in low purity of the extracted flavor liquid and affecting product quality. In addition, the existing separation equipment is prone to shaking and poor stability when running at high speed, which not only affects the separation effect, but also has safety hazards. Meanwhile, in the formula mixing process of the flavor liquid, the traditional method cannot control the timing and uniformity of the addition of each component, which cannot fully exert the characteristics of each component and cannot guarantee the stability and consistency of the flavor liquid quality. Therefore, we propose an extraction device and method for preparing plant extraction flavor liquid. SUMMARY

[0003] The present application aims to provide an extraction device and method for preparing plant extraction flavor liquid to solve the problems raised in the background.

[0004] To achieve the above-mentioned purpose, the present application provides the following technical solution: an extraction device for preparing plant extraction flavor liquid, comprising: An extraction tank, the top end of the extraction tank is connected to a condenser through a pipeline, one side of the condenser is connected to an extraction liquid pipe; An input pipe, the top end of the extraction tank is fixedly connected to an input pipe, one end of the input pipe inside the extraction tank is connected to a spiral pipe, the bottom end of the spiral pipe is fixedly connected to a hollow communicating vessel, and the inner wall of the hollow communicating vessel is connected to inclined spray heads at equal intervals; An output pipe, the bottom end of the extraction tank is connected to an output pipe, a first pump body is installed in the middle of the output pipe, one end of the output pipe is connected to a separation tank, the bottom end of the separation tank is connected to a circulation pipe, and a separation balance structure is installed in the separation tank.

[0005] Preferably, the extraction tank is designed in a sandwich structure, and the bottom and top of the outer wall of the extraction tank are respectively connected to a steam input pipe and a steam output pipe.

[0006] Preferably, the separation balance structure comprises: a separation cylinder and a connecting ring, the separation cylinder is divided into an upper containing cavity and a lower containing cavity, the separation cylinder is rotatably connected inside the upper containing cavity, a plurality of separation holes are formed in the inner wall of the separation cylinder, the bottom end of the separation cylinder extends into the lower containing cavity and is fixedly connected with a worm gear, a worm is rotatably connected inside the separation cylinder, the worm is meshingly connected with the worm gear, a motor is fixedly connected to one side of the separation cylinder, the output end of the motor is fixedly connected with the worm, the top end of the separation cylinder is fixedly connected with the connecting ring, a plurality of spherical sliding grooves are equidistantly formed inside the connecting ring, a plurality of balls are placed inside the spherical sliding grooves, a plurality of arc-shaped sliding grooves are equidistantly formed inside the connecting ring, and arc-shaped extrusion plates are slidably connected to the inner walls of the arc-shaped sliding grooves.

[0007] Preferably, the arc-shaped sliding grooves are in communication with the spherical sliding grooves, the inner walls of the arc-shaped extrusion plates are fixedly connected with tension springs, and the upper containing cavity is in communication with the lower containing cavity.

[0008] Preferably, the diameter of the balls is smaller than the inner diameter of the spherical sliding grooves.

[0009] Preferably, a plurality of air outlet holes are equidistantly formed in the inner side of the spiral pipe, and the diameters of the air outlet holes are smaller than the diameter of the inclined spray head.

[0010] Preferably, a second circulating pump is installed on the circulating pipe.

[0011] Preferably, cover plates that are matched with the extraction tank and the separation tank are fixedly installed on the top of the extraction tank and the separation tank by bolts, and a one-way valve with a switch is installed on the cover plate of the extraction tank.

[0012] The application also provides an extraction method of a plant extraction flavor liquid, which is suitable for the extraction device for preparing the plant extraction flavor liquid and comprises the following steps: S1, raw material injection The cover plate fixedly installed on the top of the extraction tank by bolts is opened, and the raw material of the plant flavor liquid to be prepared is injected into the extraction tank; According to the pretreatment requirements of the raw material, water is injected into the extraction tank, and a pretreated plant extraction liquid can be selectively injected according to the characteristics of the raw material; Protective gas is injected into the extraction tank through the input pipe at the top of the extraction tank: the protective gas is uniformly sprayed out through the air outlet holes of the spiral pipe and the inclined spray head of the hollow communication device, replaces the air in the extraction tank, avoids oxidation of the raw material, and the discharged air is guided out through the one-way valve on the cover plate; S2, plant raw liquid separation The first pump body in the middle of the output pipe is started, and the raw material mixture in the extraction tank is transported to the separation tank through the output pipe; The motor on one side of the separation tank is started: the motor drives the worm to rotate, and the meshing transmission between the worm and the worm gear enables the separation cylinder in the upper containing cavity to rotate at a high speed; Centrifugal separation: the mixed liquid is subjected to centrifugal force in the separation cylinder, and solid impurities such as plant fibers are intercepted inside the separation cylinder, and the separated plant stock solution enters the upper and lower containing cavities of the separation tank; Separation balance control: At low speed: the connecting ring rotates under small centrifugal force, the arc-shaped extrusion plate remains in place under the action of the tension spring, the ball bearings are located in the spherical sliding groove, and the connecting ring operates stably; At high speed: the centrifugal force increases, the arc-shaped extrusion plate slides against the tension spring force, extrudes the ball bearings to the opening of the spherical sliding groove and contacts the inner wall of the separation tank, supports the stable rotation of the separation cylinder, and guarantees the separation efficiency; Stock solution back feeding: start the second circulating pump on the circulating pipe to back feed the separated plant stock solution to the extraction tank for subsequent heating extraction; S3, steam heating step Close the extraction tank cover plate and fix it to form a closed space; Steam heating: inject steam into the interlayer structure through the steam input pipe at the bottom of the extraction tank, uniformly heat the plant stock solution in the extraction tank by using the interlayer design, and promote the volatilization of flavor components in the stock solution to form a steam stock solution; Steam circulation: the heated steam flows out from the steam output pipe at the top, completes the heating cycle, and continuously increases the temperature of the stock solution to fully release the flavor components; S4, condensation extraction step Steam export: the steam stock solution generated by heating in the extraction tank is transported to the condenser through the top pipe; Condensation treatment: the steam stock solution is condensed into liquid base flavor liquid in the condenser, and is guided out to the temporary storage container through the extraction liquid pipe on one side of the condenser; S5, formula mixing In the base flavor liquid in the temporary storage container, add according to the final product formula: food essence; citric acid; potassium sorbate; After sufficient stirring and mixing, the finished plant extraction flavor liquid is obtained.

[0013] Compared with the prior art, the beneficial effects of the present application are: In terms of extraction efficiency, the inside of the extraction tank is designed as an interlayer, steam heating is achieved through the steam input pipe and the steam output pipe, compared with the traditional soaking or distillation method, the raw materials can be heated more efficiently. The design of the spiral pipe connected to the input pipe and the inclined spray head allows the protective gas or other medium to act more uniformly on the raw materials, accelerating the extraction process of flavor components, fully obtaining effective flavor components from plants, reducing resource waste, and reducing production cost. The separation balance structure inside the separation tank plays an important role in the component separation link. The centrifugal force generated by the high-speed rotation of the separation cylinder can effectively separate plant fibers and other impurities in the plant stock solution, greatly improving the purity of the flavor liquid obtained by extraction and ensuring the product quality. Moreover, when the separation cylinder rotates at high speed, the arc-shaped extrusion plate, tension spring and ball on the connecting ring work together to make the ball contact the inner wall of the separation tank, protecting the separation cylinder and ensuring the stability of the separation equipment during high-speed operation, which not only improves the separation effect but also eliminates safety hazards. For the formula mixing of the flavor liquid, the present extraction method specifies the specific steps and timing of adding each component. After obtaining the flavor liquid by steam heating and condensation extraction, food essence, citric acid and potassium sorbate are added in precise proportions and fully stirred to uniformly control the formula mixing process, fully develop the characteristics of each component, ensure the stability and consistency of the flavor liquid quality, and meet the growing quality and yield requirements of the market for plant extraction flavor liquid. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is one of the overall structure schematic diagram of the present application; Figure 2 is the second overall structure schematic diagram of the present application; Figure 3 is the side view cross-sectional structure schematic diagram of the extraction tank of the present application; Figure 4 is the local cross-sectional exploded view structure schematic diagram of the separation tank of the present application; Figure 5 is the hollow communication vessel structure schematic diagram of the present application; Figure 6 is the overall structure schematic diagram of the separation tank of the present application; Figure 7 is the first connecting ring structure schematic diagram of the present application; Figure 8 is the second connecting ring structure schematic diagram of the present application.

[0015] In the figure: 1, extraction tank; 2, condenser; 3, extraction liquid pipe; 4, input pipe; 5, spiral pipe; 6, hollow communication vessel; 7, inclined spray head; 8, output pipe; 9, first pump body; 10, separation tank; 11, circulation pipe; 12, separation balance structure; 13, steam input pipe; 14, steam output pipe; 15, second circulation pump; 16, tension spring; 121, upper containing cavity; 122, lower containing cavity; 123, separation cylinder; 124, worm gear; 125, worm; 126, motor; 127, connecting ring; 128, spherical sliding groove; 129, ball; 1210, arc-shaped sliding groove; 1211, arc-shaped extrusion plate. DETAILED DESCRIPTION

[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work are within the protection scope of the present application.

[0017] Please refer to Figures 1-8 As shown in the drawings, an extraction device for preparing plant extraction flavor liquid comprises: An extraction tank 1, a condenser 2 is communicated with the top end of the extraction tank 1 through a pipeline, and an extraction liquid pipe 3 is communicated with one side of the condenser 2; An input pipe 4 is fixedly connected to the top end of the extraction tank 1, and a spiral pipe 5 is communicated with one end of the input pipe 4 located inside the extraction tank 1, a hollow communicating vessel 6 is fixedly connected to the bottom end of the spiral pipe 5, and inclined spray heads 7 are equidistantly communicated with the inner wall of the hollow communicating vessel 6, gas outlets are equidistantly arranged on the inner side of the spiral pipe 5, and the diameter of the gas outlets is smaller than the diameter of the inclined spray heads 7; An output pipe 8 is communicated with the bottom end of the extraction tank 1, a first pump body 9 is installed in the middle of the output pipe 8, a separation tank 10 is communicated with one end of the output pipe 8, a circulation pipe 11 is communicated with the bottom end of the separation tank 10, a second circulation pump 15 is installed on the circulation pipe 11, cover plates that are matched with the extraction tank 1 and the separation tank 10 are fixedly installed on the top of the extraction tank 1 and the separation tank 10 respectively, a one-way valve with a switch is installed on the cover plate on the extraction tank 1, and a separation balance structure 12 is installed in the separation tank 10.

[0018] First, the cover plate on the extraction tank 1 is opened, and then the raw material of the plant extraction flavor liquid to be prepared is injected into the extraction tank 1. Then, a protective gas is injected through the input pipe 4, and the air in the extraction tank 1 is discharged through the protective gas. The inside of the extraction tank 1 is designed as a sandwich structure, and a steam input pipe 13 and a steam output pipe 14 are respectively communicated with the bottom and the top of the outer wall of the extraction tank 1.

[0019] The separation balance structure 12 comprises a separation cylinder 123 and a connecting ring 127, the separation tank 10 is divided into an upper containing cavity 121 and a lower containing cavity 122, the upper containing cavity 121 is rotationally connected with the separation cylinder 123 inside, a plurality of separation holes are formed in the inner wall of the separation cylinder 123, the bottom end of the separation cylinder 123 extends into the lower containing cavity 122 and is fixedly connected with a worm wheel 124, a worm gear 125 is rotationally connected inside the separation tank 10 and is in meshing connection with the worm wheel 124, the separation tank 10 is fixedly connected with a motor 126 on one side, the output end of the motor 126 is fixedly connected with the worm gear 125, the connecting ring 127 is fixedly connected to the top end of the separation cylinder 123, a plurality of spherical sliding grooves 128 are equidistantly formed in the connecting ring 127, a plurality of balls 129 are placed in the spherical sliding grooves 128, a plurality of arc-shaped sliding grooves 1210 are equidistantly formed in the connecting ring 127, a plurality of arc-shaped extrusion plates 1211 are in sliding connection with the inner walls of the arc-shaped sliding grooves 1210, the arc-shaped sliding grooves 1210 are in communication with the spherical sliding grooves 128, a plurality of tension springs 16 are fixedly connected to the inner walls of the arc-shaped extrusion plates 1211, the upper containing cavity 121 and the lower containing cavity 122 are in communication, and the diameter of the balls 129 is smaller than the inner diameter of the spherical sliding grooves 128.

[0020] The bolts on the cover plate are fixed, so that the cover plate and the extraction tank 1 form an integral whole. Then steam is injected through the steam input pipe 13 at the bottom of the extraction tank 1 for heating the inside of the extraction tank 1, and the steam flows out from the steam output pipe 14. At this time, the steam produced by the extraction liquid in the extraction tank 1 flows into the condenser 2 through the pipeline for condensation to obtain the flavor liquid. After obtaining the flavor liquid, food flavor, citric acid and potassium sorbate are added according to the formula, and fully stirred and uniformly mixed.

[0021] The application also provides an extraction method of the plant extraction flavor liquid, which is suitable for the extraction device for preparing the plant extraction flavor liquid and comprises the following steps. S1, raw material injection The cover plate fixed on the top of the extraction tank 1 is opened, and the plant flavor liquid raw material to be prepared is injected into the inside of the extraction tank 1; According to the pretreatment requirements of the raw material, water is injected into the extraction tank 1, and a pretreated plant extraction liquid can be selectively injected according to the characteristics of the raw material; The protective gas is injected into the inside of the extraction tank 1 through the input pipe 4 at the top of the extraction tank 1: the protective gas is uniformly sprayed through the air outlet holes of the spiral pipe 5 and the inclined spray head 7 of the hollow communication vessel 6, replaces the air in the extraction tank 1, avoids oxidation of the raw material, and the discharged air is guided out through the one-way valve on the cover plate; S2, plant raw liquid separation The first pump body 9 in the middle of the output pipe 8 is started, and the raw material mixed liquid in the extraction tank 1 is transported to the separation tank 10 through the output pipe 8; Start the motor 126 on one side of the separation tank 10: the motor 126 drives the worm 125 to rotate, and through the meshing transmission of the worm and the worm gear 124, the separation cylinder 123 in the upper containing cavity 121 rotates at high speed; Centrifugal separation: the mixed liquid is subjected to centrifugal force in the separation cylinder 123, and the solid impurities such as plant fibers are intercepted inside the separation cylinder 123, and the separated plant stock solution enters the upper containing cavity 121 and the lower containing cavity 122 of the separation tank 10 through the inner wall separation hole; Separation balance control: At low speed: the connecting ring 127 has small centrifugal force, and the arc-shaped extrusion plate 1211 remains in place under the action of the tension spring 16, the ball 129 is located in the spherical sliding groove 128, and the connecting ring runs stably; At high speed: the centrifugal force increases, the arc-shaped extrusion plate 1211 slides against the tension spring force, extrudes the ball 129 to the opening of the spherical sliding groove and contacts the inner wall of the separation tank, supports the stable rotation of the separation cylinder 123, and guarantees the separation efficiency; Stock solution back feeding: start the second circulating pump 15 on the circulating pipe 11 to feed the separated plant stock solution to the extraction tank 1 for subsequent heating extraction; S3, steam heating step Close the cover plate of the extraction tank 1 and fix it to form a closed space; Steam heating: inject steam into the interlayer structure through the steam input pipe 13 at the bottom of the extraction tank 1, uniformly heat the plant stock solution in the extraction tank by using the interlayer design, and promote the volatilization of flavor components in the stock solution to form steam stock solution; Steam circulation: the heated steam flows out from the steam output pipe 14 at the top to complete the heating cycle, continuously improves the temperature of the stock solution to fully release the flavor components; S4, condensation extraction step Steam export: the steam stock solution generated by heating in the extraction tank is transported to the condenser 2 through the top pipe; Condensation treatment: the steam stock solution is condensed into liquid basic flavor liquid in the condenser 2, and is guided out to the temporary storage container through the extraction liquid pipe 3 on one side of the condenser; S5, formula mixing In the temporary storage container, the basic flavor liquid is added according to the final product formula: Food essence, improve flavor level; Citric acid, adjust acidity; Potassium sorbate, prevent corrosion and preservation; After sufficient stirring and mixing, the finished plant extraction flavor liquid is obtained.

[0022] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; it is not intended to exclude myriad other embodiments of the present application that other inventors can develop based on the same general inventive concepts embodied by the described embodiments. That is, although the present application is described in terms of particular embodiments and illustrative figures, it should be apparent that the scope of the present application is not limited to these specific embodiments.

[0023] While the embodiments of the application have been shown and described herein, it will be understood by those of ordinary skill in the art that various changes, modifications, alternatives, and variations can be made to the embodiments without departing from the spirit and scope of the application, which is defined by the claims and their equivalents.

Claims

1. An extraction apparatus for preparing plant-based flavor liquid, characterized in that, The utility model relates to a plant flavor liquid preparation device, including: The top of extraction tank (1) is communicated with condenser (2) through pipeline, one side of condenser (2) is communicated with extraction liquid pipe (3); The top of extraction tank (1) is fixedly connected with input pipe (4), one end in the inside of extraction tank (1) of input pipe (4) is communicated with spiral pipe (5), the bottom of spiral pipe (5) is fixedly connected with hollow communicating vessel (6), the inner wall of hollow communicating vessel (6) is communicated with inclined shower head (7) equidistantly; The bottom of extraction tank (1) is communicated with output pipe (8), the middle part of output pipe (8) is installed with first pump body (9), one end of output pipe (8) is communicated with separation tank (10), the bottom of separation tank (10) is communicated with circulation pipe (11), and separation tank (10) is installed with separation balance structure (12) in the inside.

2. The extraction device for preparing a plant-extracted flavor liquid according to claim 1, characterized by: The inside of extraction tank (1) is designed as sandwich, and the bottom and top of the outer wall of extraction tank (1) are communicated with steam input pipe (13) and steam output pipe (14) respectively.

3. The extraction device for preparing a plant-extracted flavor liquid according to claim 1, characterized by: The separation balance structure (12) includes: separation cylinder (123) and connecting ring (127), the separation tank (10) is divided into upper containing cavity (121) and lower containing cavity (122), the inside of upper containing cavity (121) is rotatably connected with separation cylinder (123), a plurality of separation holes are formed in the inner wall of separation cylinder (123), the bottom of separation cylinder (123) extends into lower containing cavity (122) and is fixedly connected with worm gear (124), worm (125) is rotatably connected in the inside of separation tank (10), worm (125) is meshedly connected with worm gear (124), motor (126) is fixedly connected on one side of separation tank (10), the output end of motor (126) is fixedly connected with worm (125), the top of separation cylinder (123) is fixedly connected with connecting ring (127), equidistantly formed in the inside of connecting ring (127) are spherical sliding groove (128), ball (129) is placed in the inside of spherical sliding groove (128), equidistantly formed in the inside of connecting ring (127) are arc-shaped sliding grooves (1210), and arc-shaped extrusion plate (1211) is slidably connected in the inner wall of arc-shaped sliding groove (1210).

4. The extraction device for preparing a plant-extracted flavor liquid according to claim 3, characterized by: The arc-shaped sliding groove (1210) is communicated with the spherical sliding groove (128), the inner wall of arc-shaped extrusion plate (1211) is fixedly connected with tension spring (16), and the upper containing cavity (121) and the lower containing cavity (122) are communicated.

5. The plant extract flavor liquid preparation extraction apparatus according to claim 3, characterized by: The diameter of ball (129) is less than the inner diameter of spherical sliding groove (128).

6. The plant extract flavor liquid preparation extraction apparatus according to claim 1, characterized by: Equidistantly formed in the inside of spiral pipe (5) are air outlet holes, and the diameter of air outlet hole is less than the diameter of inclined shower head (7).

7. The plant extract flavor liquid preparation extraction apparatus according to claim 1, characterized by: The second circulation pump (15) is installed on circulation pipe (11).

8. The plant extract flavor liquid preparation extraction apparatus according to claim 1, characterized by: The top of extraction tank (1) and separation tank (10) is fixedly installed with the cover plate that fits with each other through bolt respectively, and the cover plate on extraction tank (1) is installed with one-way valve with switch.

9. An extraction method of a plant extract flavor liquid, the method being suitable for an extraction device for producing the plant extract flavor liquid according to any one of claims 1 to 8, characterized by, Including the following steps: S1, raw material injection Open the cover plate fixedly through bolt on the top of extraction tank (1), and inject the plant flavor liquid raw material to be prepared into the inside of extraction tank (1); According to the requirement of raw material pretreatment, water is injected into extraction tank (1), and pretreated plant extraction liquid can be selectively injected according to the characteristics of raw material; The protective gas is injected into the interior through the input pipe (4) at the top end of the extraction tank (1): the protective gas is uniformly sprayed through the gas outlet hole of the spiral pipe (5) and the inclined spray head (7) of the hollow communication vessel (6), replacing the air in the extraction tank (1) to avoid oxidation of the raw materials, and the discharged air is guided out through the one-way valve on the cover plate; S2, plant stock solution separation Start the first pump body (9) in the middle of the output pipe (8) to transport the raw material mixture in the extraction tank (1) to the separation tank (10) through the output pipe (8); Start the motor (126) on one side of the separation tank (10): the motor (126) drives the worm (125) to rotate, and through the meshing transmission of the worm and the worm gear (124), the separation cylinder (123) in the upper containing cavity (121) rotates at high speed; Centrifugal separation: the mixed solution is subjected to centrifugal force in the separation cylinder (123), and solid impurities such as plant fibers are intercepted inside the separation cylinder (123), and the separated plant stock solution enters the upper containing cavity (121) and the lower containing cavity (122) of the separation tank (10); Separation balance control: At low speed: the rotating centrifugal force of the connecting ring (127) is small, the arc-shaped extrusion plate (1211) remains in place under the action of the tension spring (16), the ball (129) is located in the spherical sliding groove (128), and the connecting ring runs stably; At high speed: the centrifugal force increases, the arc-shaped extrusion plate (1211) slides against the tension spring force, extrudes the ball (129) to the opening of the spherical sliding groove and contacts the inner wall of the separation tank, supports the stable rotation of the separation cylinder (123), and guarantees the separation efficiency; Stock solution back feeding: start the second circulating pump (15) on the circulating pipe (11) to feed the separated plant stock solution back to the extraction tank (1) for subsequent heating extraction; S3, steam heating step Close the cover plate of the extraction tank (1) and fix it to form a closed space; Steam heating: inject steam into the sandwich structure through the steam input pipe (13) at the bottom of the extraction tank (1), uniformly heat the plant stock solution in the extraction tank by using the sandwich design, and promote the volatilization of flavor components in the stock solution to form a steam stock solution; Steam circulation: the heated steam flows out from the top steam output pipe (14), completes the heating cycle, and continuously increases the temperature of the stock solution to fully release the flavor components; S4, condensation extraction step Steam discharge: the steam stock solution generated by heating in the extraction tank is transported to the condenser (2) through the top pipe; Condensation treatment: the steam stock solution is condensed into liquid basic flavor liquid in the condenser (2), and is guided out to the temporary storage container through the extraction liquid pipe (3) on one side of the condenser; S5, formula mixing In the temporary storage container, the following are added to the basic flavor liquid according to the final product formula: food essence; citric acid; potassium sorbate; After sufficient stirring and mixing, the finished plant extraction flavor liquid is obtained.

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