Full-intelligent cold extraction beverage extraction device and method

Abstract

The invention discloses a full-intelligent cold extraction beverage extraction device which is characterized in that a microwave deacidification device is detachably connected with a cold extraction machine body through a microwave deacidification raw material lead-out pipe, one end of the extraction device is connected with a high-temperature steam generator, and the high-temperature steam generator is connected with a sterile water tank; the other end of the extraction device is connected with the cooling water refrigerating unit; the extraction device, the high-temperature steam generator and the cooling water refrigerating unit are all electrically connected with the control electric box, and a PLC control unit is arranged in the control electric box. The invention further discloses an extraction method of the full-intelligent cold extraction beverage extraction device. According to the scheme, the whole process is controlled by a computer, the long-term continuous stability of the quality of the cold-extracted beverage is ensured, the component content of the cold-extracted primary pulp is ensured through microwave deacidification, instant high-temperature steam aroma extraction and extraction at the constant temperature of 4-12 DEG C, the filtering efficiency is improved by a large-area anti-blocking filter, and the juice yield is improved by mechanical squeezing.

Description

Technical Field

[0001] The present invention relates to the technical field of extraction technology, and in particular to a fully intelligent cold-brew beverage extraction device and method. Background Art

[0002] When coffee and tea are brewed at low temperature for a long time, the amino acid molecules with a fresh and refreshing taste will be dissolved first in the cold water, while the bitter caffeine, tea polyphenols and other substances will be dissolved slowly, making the resulting extract soup taste softer and not bitter or astringent. The resulting cold brewed beverage not only tastes great, but also has a weaker bitterness, is fresher and sweeter; and cold brewed beverages also contain more antioxidants and vitamins, which are widely loved and sought after by young people. However, the current equipment for producing cold brewed beverages is too simple, and the corresponding cold brewed beverage preparation process is not mature enough, making it difficult to produce high-quality cold brewed beverages, and the production efficiency is low.

[0003] Therefore, in order to improve the production efficiency and quality of cold-brewed beverages, we plan to use automated cold-brewed beverage extraction equipment and more advanced extraction processes to extract high-quality cold-brewed beverages, thereby providing good equipment support and process technology support for high-quality cold-brewed beverages. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to utilize the characteristics of cold-brew beverage (such as coffee, tea, etc.) raw materials that require deacidification, aromatization, and low-temperature directional mineral component extraction, to develop a fully intelligent cold-brew beverage extraction device and method to solve the problems that the existing equipment for producing cold-brew beverages is too simple, the corresponding cold-brew beverage preparation process is not mature enough, it is difficult to produce high-quality cold-brew beverages, and the production efficiency is low.

[0005] The technical solution adopted by the present invention to achieve the above-mentioned purpose is: a fully intelligent cold-brew beverage extraction device, including a microwave acid removal device and a cold-brew body, the microwave acid removal device and the cold-brew body are detachably connected through a microwave acid removal raw material outlet pipe, the cold-brew body includes an extraction device, a high-temperature steam generator, a sterile water tank, a cooling water refrigeration unit and a control electrical box, one end of the extraction device is connected to the high-temperature steam generator, and the high-temperature steam generator is connected to the sterile water tank through a conduit; the other end of the extraction device is connected to the cooling water refrigeration unit through a cooling water inlet pipe. The extraction device, the high-temperature steam generator and the cooling water refrigeration unit are all electrically connected to the control electrical box, and a PLC control unit is provided inside the control electrical box.

[0006] In order to further improve the ease of use of a fully intelligent cold-brew beverage extraction device, the present invention adopts a solution: the microwave deacidification device includes a microwave generator, a microwave leakage-proof box, a microwave leakage-proof exhaust port, a microwave acid-decidification raw material storage container and a microwave acid-decidification program control box; the microwave acid-decidification raw material storage container is arranged inside the microwave leakage-proof box, the microwave leakage-proof exhaust port is opened at the upper end of the microwave leakage-proof box, the microwave leakage-proof box is fit-connected to the microwave generator, and the microwave acid-decidification program control box is electrically connected to the microwave generator.

[0007] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts a solution that: the upper end of the extraction device is detachably connected to a sealing cover via a sealing cover locking mechanism.

[0008] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts a solution that an extraction liner is provided inside the extraction device, and an extraction stock solution filtering barrel is movably connected inside the extraction liner.

[0009] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts a solution in which a conical filter screen for filtering the raw liquid is detachably provided inside the extraction raw liquid filter barrel.

[0010] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts a solution that a cooling water channel layer is provided on the outside of the extraction device, and an insulation layer is provided on the outside of the cooling water channel layer.

[0011] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts the following solution: a cooling water outlet is opened on one side of the cooling water channel layer, and a cooling water return pipe is provided on the cooling water outlet, one end of the cooling water return pipe is connected to the cooling water channel layer, and the other end of the cooling water return pipe is connected to the cooling water refrigeration unit.

[0012] In order to further improve the ease of use of a fully intelligent cold-brew beverage extraction device, the present invention adopts the following solution: a discharge port is provided at the bottom end of the extraction device, a three-way pipe is connected to the first end of the discharge port, a steam pressure relief solenoid valve is connected between the three-way pipe and the high-temperature steam generator; a cold-brew stock liquid outlet pipe is connected to the second end of the discharge port, and a stock liquid discharge solenoid valve is installed on the cold-brew stock liquid outlet pipe.

[0013] In order to further improve the ease of use of a fully intelligent cold brew beverage extraction device, the present invention adopts a solution that a high-temperature solenoid valve is connected between the three-way pipe and the discharge port.

[0014] The present invention also provides an extraction method of a fully intelligent cold-brew beverage extraction device, comprising the following steps:

[0015] (1) setting the deacidification time and deacidification process according to the acidic substances in the raw materials, and removing the acidic substances in the raw materials such as coffee through a microwave deacidification device;

[0016] (ii) removing the opened sealing cover, pouring the cold-extracted raw material after microwave deacidification into the extraction liner of the extraction device, storing it in the extraction stock liquid filter barrel provided in the extraction liner, and then re-locking the sealing cover through the sealing cover locking mechanism;

[0017] (III) After the cold extraction raw materials are filled into the extraction device, the steam pressure relief solenoid valve is closed, the high temperature solenoid valve is opened, and the high temperature steam generator is controlled to produce steam. The high temperature steam generator presses the pure water retained in the sterile water tank into the high temperature steam generator through the conduit, and controls the temperature to generate high temperature steam of >℃. The high temperature steam enters the extraction liquid filter barrel through the high temperature solenoid valve, thereby performing steam aroma treatment on the cold extraction raw materials for hours-seconds;

[0018] (iv) After the aroma treatment of the cold-extracted raw materials is completed, the continuous power supply to the high-temperature steam generator is stopped, the high-temperature solenoid valve is closed, the steam pressure relief solenoid valve is opened, the water pump of the high-temperature steam generator continues to work, and the high-temperature steam generator is cooled by external cold water. The cooling water for cooling the high-temperature steam generator is discharged to a drainage outlet outside the cold-extracting device through a three-way pipe provided with the steam pressure relief solenoid valve;

[0019] (V) After the continuous high-temperature steam aroma extraction operation is completed, according to the amount of water required by the extract, quickly pour an appropriate amount of water or ice water mixture below ℃ into the extraction tank to quickly lock the aroma of the cold extract and prevent the dissolution of high-temperature minerals in the cold extract. After adding cold water, turn on the cooling water refrigeration unit to generate cold water through the cooling water refrigeration unit. The cold water enters the cooling water channel layer through the cooling water inlet pipe to achieve constant temperature cooling of the extraction tank. The generated cooling return water flows out through the cooling water outlet provided on the upper part of the cooling water channel layer and flows into the cooling water refrigeration unit through the cooling water return pipe for circulation;

[0020] (VI) When the concentration of the raw liquid of the cold extraction product reaches the standard, the raw liquid discharge solenoid valve is opened, and the cold extraction raw liquid is filtered through the conical filter screen provided in the extraction raw liquid filter barrel. The fully filtered cold extraction raw liquid slowly seeps out and enters the filling workshop through the cold extraction raw liquid outlet pipe for filling.

[0021] Beneficial effects of the present invention:

[0022] 1) The present invention uses microwave to remove acid, instant (within 6 seconds) high-temperature steam (>130° C.) to enhance aroma, constant temperature extraction at 4-12° C. to ensure the content of raw pulp components extracted by cold extraction, a large-area anti-blocking filter to improve filtering efficiency, and mechanical pressing to improve juice yield.

[0023] 2) The whole process of the present invention is computer controlled to ensure the long-term and continuous stability of the quality of the cold brew beverage.

[0024] 3) The present invention uses microwaves to heat the raw materials with strong acidity (such as coffee, tea, etc.) from the inside to decompose the acidic substances from the inside of the raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of the microwave acid removal device of the present invention transmitting microwave acid removal to the cold extraction body;

[0026] Figure 2 It is a schematic diagram of the decomposition of the microwave acid removal device and the cold extraction machine body of the present invention;

[0027] Figure 3 It is a schematic structural diagram of the microwave acid removal device of the present invention;

[0028] Figure 4 It is a schematic diagram of the internal structure of the microwave acid removal device of the present invention;

[0029] Figure 5 It is a schematic diagram of the structure of the cold extraction machine of the present invention;

[0030] Figure 6 It is a schematic diagram of the structure of the extraction device of the present invention;

[0031] Figure 7 The figure is a flow chart of the extraction method of the present invention.

[0032] In the figure: 1 microwave deacidification device, 11 microwave generator, 12 microwave leakage prevention box, 13 microwave leakage prevention exhaust pipeline, 14 microwave deacidification raw material storage container, 15 microwave deacidification program control box, 2 cold extraction body, 21 extraction device, 22 high temperature steam generator, 23 sterile water tank, 24 cooling water refrigeration unit, 25 control electric box, 26 PLC control unit, 27 sealing cover, 28 sealing cover locking mechanism, 29 extraction stock solution filter barrel, 30 extraction liner, 31 conical filter screen, 32 discharge port, 33 cooling water channel layer, 34 insulation layer, 35 cooling water outlet, 36 cooling water reflux pipeline, 37 three-way pipeline, 38 high temperature solenoid valve, 39 steam pressure relief solenoid valve, 40 cold extraction stock solution outlet pipe, 41 stock solution discharge solenoid valve, 42 conduit, 43 cooling water inlet pipeline, 3 microwave deacidification raw material export pipe. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] See also Figures 1 to 6 The present invention provides a fully intelligent cold brew beverage extraction device, comprising a microwave deacidification device 1 and a cold brew body 2, wherein the microwave deacidification device 1 and the cold brew body 2 are detachably connected via a microwave deacidification raw material outlet pipe 3, and the cold brew body 2 comprises an extraction device 21, a high-temperature steam generator 22, a sterile water tank 23, a cooling water refrigeration unit 24 and a control electrical box 25.

[0035] One end of the extraction device 21 is connected to the high-temperature steam generator 22, and the high-temperature steam generator 22 is connected to the sterile water tank 23 through a conduit 42; the other end of the extraction device 21 is connected to the cooling water refrigeration unit 24 through a cooling water inlet pipe 43. The extraction device 21, the high-temperature steam generator 22 and the cooling water refrigeration unit 24 are all electrically connected to the control box 25, and a PLC control unit 26 is provided inside the control box 25. The cold extraction process is completed by the intelligent control of the PLC control unit 26 in the control box 25, and the PLC control unit 26 includes temperature sensor control, concentration control, time control and other controls.

[0036] Furthermore, the microwave deacidification device 1 includes a microwave generator 11, a microwave leakage prevention box 12, a microwave leakage prevention exhaust port 13, a microwave acid removal raw material storage container 14 and a microwave acid removal program control box 15. The microwave acid removal raw material storage container 14 is arranged inside the microwave leakage prevention box 12, the microwave leakage prevention exhaust port 13 is opened at the upper end of the microwave leakage prevention box 12, the microwave leakage prevention box 12 is closely connected to the microwave generator 11, and the microwave acid removal program control box 15 is electrically connected to the microwave generator 11.

[0037] Furthermore, the upper end of the extraction device 21 is detachably connected to a sealing cover 27 via a sealing cover locking mechanism 28. The sealing cover locking mechanism 28 (including accessories such as a sealing plate and a sealing screw) can improve the disassembly and assembly efficiency and sealing performance of the sealing cover 27.

[0038] Furthermore, an extraction liner 30 is provided inside the extraction device 21, and an extraction stock solution filter barrel 29 is movably connected inside the extraction liner 30, and a conical filter net 31 is detachably provided inside the extraction stock solution filter barrel 29. Impurities in the stock solution are filtered through the conical filter net 31 to improve the quality of the stock solution.

[0039] Furthermore, a cooling water channel layer 33 is disposed outside the extraction device 21, and a heat preservation layer 34 is disposed outside the cooling water channel layer 33 to improve the heat preservation effect.

[0040] Furthermore, a cooling water outlet 35 is provided on one side of the cooling water channel layer 33, and a cooling water return pipe 36 is provided on the cooling water outlet 35, one end of the cooling water return pipe 36 is connected to the cooling water channel layer 33, and the other end of the cooling water return pipe 36 is connected to the cooling water refrigeration unit 24, so that the cold water can be circulated and water resources can be effectively saved.

[0041] Furthermore, a discharge port 32 is provided at the bottom end of the extraction device 21, a first end of the discharge port 32 is connected to a three-way pipe 37, a steam pressure relief solenoid valve 39 is connected between the three-way pipe 37 and the high-temperature steam generator 22; a second end of the discharge port 32 is connected to a cold extraction liquid outlet pipe 40, a liquid discharge solenoid valve 41 is installed on the cold extraction liquid outlet pipe 40; a high-temperature solenoid valve 38 is connected between the three-way pipe 37 and the discharge port 32.

[0042] See also Figure 7 , its working steps are as follows:

[0043] (1) setting the deacidification time and deacidification process according to the acidic substances in the raw materials, and removing the acidic substances in the raw materials such as coffee through the microwave deacidification device 1;

[0044] (2) Remove the opened sealing cover 27, pour the cold-extracted raw material after microwave deacidification into the extraction liner 30 of the extraction device 21, store it in the extraction liquid filter barrel 29 provided in the extraction liner 30, and then re-lock the sealing cover 27 through the sealing cover locking mechanism 28;

[0045] (3) After the cold extraction raw material is filled into the extraction device 21, the steam pressure relief solenoid valve 39 is closed, the high temperature solenoid valve 38 is opened, and the high temperature steam generator 22 is controlled to produce steam. The high temperature steam generator 22 presses the pure water retained in the sterile water tank 23 into the high temperature steam generator 22 through the conduit 42, and controls the temperature to generate high temperature steam of more than 130° C. The high temperature steam enters the extraction liquid filter barrel 29 through the high temperature solenoid valve 38, thereby performing a steam aroma treatment on the cold extraction raw material for 5-7 seconds;

[0046] (4) When the aroma treatment of the cold-extracted raw material is completed, the continuous power supply to the high-temperature steam generator 22 is stopped, the high-temperature solenoid valve 38 is closed, and the steam pressure relief solenoid valve 39 is opened. The water pump of the high-temperature steam generator 22 continues to work, and the high-temperature steam generator 22 is cooled by external cold water. The cooling water for cooling the high-temperature steam generator 22 is discharged to a drainage outlet outside the cold-extracting device through the three-way pipe 37 provided with the steam pressure relief solenoid valve 39;

[0047] (5) When the continuous high-temperature steam aroma extraction operation is completed, according to the amount of water required for the extract, a proper amount of water or ice water mixture below 4°C is quickly poured into the extraction tank 30 to quickly lock the aroma of the cold extract and prevent the dissolution of high-temperature minerals in the cold extract. After adding cold water, the cooling water refrigeration unit 24 is turned on to generate cold water through the cooling water refrigeration unit 24. The cold water enters the cooling water channel layer 33 through the cooling water inlet pipe 43 to achieve constant temperature cooling of the extraction tank 30. The generated cooling return water flows out through the cooling water outlet 35 provided on the upper part of the cooling water channel layer 33 and flows into the cooling water refrigeration unit 24 through the cooling water return pipe 36 for circulation;

[0048] (6) In general, the dissolution temperature of substances that affect the taste is relatively high and it is not easy to dissolve at low temperature. Therefore, when the concentration of the raw liquid of the cold extraction product reaches the standard, the raw liquid discharge solenoid valve 41 is opened, and the cold extraction raw liquid is filtered through the conical filter 31 set in the extraction raw liquid filter barrel 29. When the moisture in the raw material is not enough to continue filtering and the raw material still contains a large amount of moisture, the extrusion equipment is required. By starting the extrusion program until the moisture in the raw material reaches a state that can no longer be collected, the cold extraction process is ended, and the device will remind the staff to discharge the slag and clean the device for maintenance; the fully filtered cold extraction raw liquid slowly seeps out and enters the filling workshop through the cold extraction raw liquid outlet pipe 40 for filling.

[0049] After the deacidified raw materials of the present invention enter the cold extraction body, under the impact of high-temperature steam (aromatizer), phenolic substances and hydrocarbon substances (aromatic agents) in the raw materials are instantly released on the surface of the raw materials, and then low-temperature pure water or ice cubes are added to quickly lock the fragrance in the original liquid. At the same time, the refrigeration equipment is turned on to ensure that the inner tank of the cold extraction device maintains a constant temperature, thereby realizing the slow dissolution of low-temperature soluble substances in the raw materials; when the concentration of the solution reaches the concentration we need, the cold extraction device sends a signal to the staff that the cold extraction is ended. If the original liquid collection container has been placed before the cold extraction, the cold extraction device will automatically perform the original liquid collection action.

[0050] The standard parts used in the present invention can all be purchased from the market, and special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the prior art. Machinery, parts and equipment all adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here. The content not described in detail in this specification belongs to the prior art known to professional and technical personnel in this field.

[0051] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully intelligent cold brew beverage extraction device, comprising a microwave deacidification device (1) and a cold brew body (2), wherein the microwave deacidification device (1) and the cold brew body (2) are detachably connected via a microwave deacidification raw material outlet pipe (3), characterized in that: The cold extraction machine body (2) comprises an extraction device (21), a high-temperature steam generator (22), a sterile water tank (23), a cooling water refrigeration unit (24) and a control electrical box (25); One end of the extraction device (21) is connected to the high-temperature steam generator (22), and the high-temperature steam generator (22) is connected to the sterile water tank (23) via a conduit (42); The other end of the extraction device (21) is connected to the cooling water refrigeration unit (24) via a cooling water inlet pipe (43); The extraction device (21), the high-temperature steam generator (22) and the cooling water refrigeration unit (24) are all electrically connected to the control electrical box (25), and a PLC control unit (26) is provided inside the control electrical box (25).

2. The fully intelligent cold brew beverage extraction device according to claim 1, characterized in that: The microwave deacidification device (1) comprises a microwave generator (11), a microwave leakage prevention box (12), a microwave leakage prevention exhaust port (13), a microwave deacidification raw material storage container (14) and a microwave deacidification program control box (15); the microwave deacidification raw material storage container (14) is arranged inside the microwave leakage prevention box (12); the microwave leakage prevention exhaust port (13) is opened at the upper end of the microwave leakage prevention box (12); the microwave leakage prevention box (12) is closely connected to the microwave generator (11); and the microwave deacidification program control box (15) is electrically connected to the microwave generator (11).

3. A fully intelligent cold brew beverage extraction device according to claim 2, characterized in that: The upper end of the extraction device (21) is detachably connected to a sealing cover (27) via a sealing cover locking mechanism (28).

4. The fully intelligent cold brew beverage extraction device according to claim 2, characterized in that: An extraction liner (30) is provided inside the extraction device (21), and an extraction raw liquid filtering barrel (29) is movably connected inside the extraction liner (30).

5. The fully intelligent cold-brew beverage extraction device according to claim 4, characterized in that: The extraction raw liquid filtering barrel (29) has a detachable conical filtering net (31) inside for filtering raw liquid.

6. The fully intelligent cold brew beverage extraction device according to claim 2, characterized in that: A cooling water channel layer (33) is provided outside the extraction device (21), and a heat preservation layer (34) is provided outside the cooling water channel layer (33).

7. A fully intelligent cold brew beverage extraction device according to claim 6, characterized in that: A cooling water outlet (35) is provided on one side of the cooling water channel layer (33), and a cooling water return pipe (36) is provided on the cooling water outlet (35). One end of the cooling water return pipe (36) is connected to the cooling water channel layer (33), and the other end of the cooling water return pipe (36) is connected to the cooling water refrigeration unit (24).

8. The fully intelligent cold brew beverage extraction device according to claim 2, characterized in that: A discharge port (32) is provided at the bottom end of the extraction device (21); a first end of the discharge port (32) is connected to a three-way pipe (37); a steam pressure relief solenoid valve (39) is connected between the three-way pipe (37) and the high-temperature steam generator (22); a second end of the discharge port (32) is connected to a cold extraction liquid outlet pipe (40); a liquid discharge solenoid valve (41) is installed on the cold extraction liquid outlet pipe (40).

9. The fully intelligent cold-brew beverage extraction device according to claim 8, characterized in that: A high-temperature solenoid valve (38) is connected between the three-way pipe (37) and the discharge port (32).

10. The extraction method according to any one of claims 1 to 9, characterized in that: The extraction process comprises the following steps: Step S1: setting the deacidification time and deacidification process according to the acidic substances in the raw materials, and passing the raw materials to be deacidified (such as coffee, etc.) through the microwave deacidification device (1) to remove the acidic substances in the raw materials; Step S2: removing the opened sealing cover (27), pouring the cold-extracted raw material after microwave deacidification into the extraction liner (30) of the extraction device (21), storing it in the extraction stock solution filter barrel (29) provided in the extraction liner (30), and then re-locking the sealing cover (27) through the sealing cover locking mechanism (28); Step S3: After the cold extraction raw material is filled into the extraction device (21), the steam pressure relief solenoid valve (39) is closed, the high temperature solenoid valve (38) is opened, and the high temperature steam generator (22) is controlled to produce steam. The high temperature steam generator (22) presses the pure water retained in the sterile water tank (23) into the high temperature steam generator (22) through the conduit (42), and controls the temperature to generate high temperature steam of more than 130° C. The high temperature steam enters the extraction liquid filter barrel (29) through the high temperature solenoid valve (38), thereby performing a steam aroma treatment on the cold extraction raw material for 5-7 seconds; Step S4: When the aroma treatment of the cold-extracted raw material is completed, the continuous power supply to the high-temperature steam generator (22) is stopped, the high-temperature solenoid valve (38) is closed, the steam pressure relief solenoid valve (39) is opened, the water pump of the high-temperature steam generator (22) continues to work, and the high-temperature steam generator (22) is cooled by external cold water. The cooling water for cooling the high-temperature steam generator (22) is discharged to a drainage outlet outside the cold-extracting device through a three-way pipe (37) provided with the steam pressure relief solenoid valve (39); Step S5: After the continuous high-temperature steam aroma extraction operation is completed, according to the amount of water required by the extract, a proper amount of water or ice water mixture below 4°C is quickly poured into the extraction tank (30) to quickly lock the aroma of the cold extract and prevent the dissolution of high-temperature minerals in the cold extract. After adding cold water, the cooling water refrigeration unit (24) is turned on to generate cold water through the cooling water refrigeration unit (24). The cold water enters the cooling water channel layer (33) through the cooling water inlet pipe (43) to achieve constant temperature cooling of the extraction tank (30). The generated cooling return water flows out through the cooling water outlet (35) provided on the upper part of the cooling water channel layer (33), and flows into the cooling water refrigeration unit (24) through the cooling water return pipe (36) for circulation; Step S6: When the concentration of the raw liquid of the cold extraction product reaches the standard, the raw liquid discharge solenoid valve (41) is opened, and the cold extraction raw liquid is filtered through the conical filter screen (31) provided in the extraction raw liquid filter barrel (29). The fully filtered cold extraction raw liquid slowly seeps out and enters the filling workshop through the cold extraction raw liquid outlet pipe (40) for filling.

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