A nutritional product compounding tank

Abstract

This utility model discloses a nutritional product preparation mixing tank, including a main mixing tank. The outer end of the main mixing tank is fixedly connected to a jacketed shell. The upper end of the main mixing tank is fixedly connected to a first discharge pipe near the right side. The first discharge pipe is fixedly installed at the lower end of a first premixing tank. The upper end of the first premixing tank is connected to a second premixing tank through a conveying pipe. Liquid raw materials are first added into the main mixing tank, and the liquid raw materials are mixed and stirred by a second driving mechanism and a stirring paddle. Powder raw materials are added into the second premixing tank. Under the action of the first driving mechanism, the stirring shaft drives the first stirring blade, the second stirring blade and the third spiral blade to premix the powder raw materials. The powder mixture is slowly added into the first premixing tank. The mixture inside the first premixing tank generates huge shear force under the action of high-speed stirring, which instantly tears the slowly added powder mixture, avoids agglomeration, and makes the particles evenly dispersed in the mixture.

Description

Technical Field

[0001] This utility model relates to the field of nutritional product preparation technology, specifically a nutritional product preparation mixing tank. Background Technology

[0002] Nutritional product mixing tanks are sealed containers used for uniform mixing of various liquid and powder raw materials. They are precision devices that integrate multiple functions such as heating, cooling, vacuum degassing, and CIP (clean-in-place). Since most nutritional product mixtures consist of two main categories of raw materials: liquid and powder, directly mixing the liquid and powder can easily lead to insufficient mixing, clumping, and poor mixing effect. Pouring a large amount of powder directly will trap air and generate excessive foam during the mixing process. Utility Model Content

[0003] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0004] In view of the problems existing in the above and / or existing nutritional product preparation mixing tanks, this utility model is proposed.

[0005] Therefore, the purpose of this utility model is to provide a nutritional product preparation mixing tank. Liquid raw materials are first added to the main mixing tank, where they are mixed and stirred by a second drive mechanism and a stirring paddle. Powdered raw materials are then added to a second premixing tank. Under the action of a first drive mechanism, a stirring shaft drives a first stirring blade, a second stirring blade, and a third spiral blade to premix the powdered raw materials. The liquid raw materials mixed in the main mixing tank are then pumped into the first premixing tank in appropriate amounts through a delivery pump, delivery pipe, branch pipe, and inlet pipe. The mixture is then stirred at high speed by a variable frequency speed-regulating motor and a high-speed shearing stirring head. Simultaneously, the second discharge pipe is opened, and the third spiral blade helps to discharge the powder mixture from the second premixing tank. A first three-phase asynchronous motor and a second drive shaft drive the second spiral blade to rotate, controlling the feeding of the powder mixture. This allows the powder mixture to be slowly added into the first premixing tank. The mixture inside the first premixing tank generates a huge shear force under high-speed stirring, instantly tearing apart the slowly added powder mixture, preventing clumping, and ensuring that the particles are evenly dispersed in the mixture.

[0006] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A nutritional product preparation mixing tank includes a main mixing tank, with a jacketed shell fixedly connected to the outer end of the main mixing tank. The upper end of the main mixing tank is fixedly connected to a first discharge pipe near the right side. The first discharge pipe is fixedly disposed at the lower end of a first premixing tank. The upper end of the first premixing tank is connected to a second premixing tank via a conveying pipe. The first premixing tank includes an inlet pipe. The inlet pipe is fixedly connected to the upper end of the first premixing tank near the right side. A first rotating shaft is rotatably connected through the top of the first premixing tank. The upper end of the first rotating shaft is connected to the output shaft of a variable frequency speed control motor. A high-speed shearing stirring head is fixedly connected to the lower end of the first rotating shaft. The lower end of the high-speed shearing stirring head is fixedly connected to a first transmission shaft. A first spiral blade is fixedly connected to the outer ring of the first transmission shaft. The conveying pipe includes a second drive shaft rotatably connected to the inner wall of the conveying pipe. The left end of the second drive shaft passes through the conveying pipe and is connected to the output shaft of the first three-phase asynchronous motor. A second spiral blade is fixedly connected to the outer ring of the second drive shaft. The second premixing tank includes a stirring shaft rotatably connected to the top of the tank. The upper end of the stirring shaft is connected to the output shaft of the first drive mechanism. A first stirring blade, a second stirring blade, and a third spiral blade are fixedly connected to the outer ring of the stirring shaft. The first stirring blade is positioned above the third spiral blade and has a through hole. A food-grade flexible scraper is fixedly connected to the outer end of the second stirring blade. A second discharge pipe is fixedly connected to the lower end of the second premixing tank. The second premixing tank is connected to the inlet end of a conveying pipe via the second discharge pipe. The discharge end of the conveying pipe is connected to the upper end of the first premixing tank.

[0007] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, the main mixing tank includes an infusion pump, the lower end discharge pipe of the main mixing tank is connected to the inlet port of the infusion pump, the outlet port of the infusion pump is connected to an infusion pipe, and a first butterfly valve is provided on the infusion pipe.

[0008] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a branch pipe is fixedly connected to the upper end of the infusion pipe, the branch pipe is located to the left of the first butterfly valve, a second butterfly valve is provided on the branch pipe, and the branch pipe is connected to the inlet pipe through an external pipe.

[0009] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a liquid raw material inlet pipe is fixedly connected to the upper end of the main mixing tank near the left side, a second rotating shaft is rotatably connected through the top of the main mixing tank, a stirring paddle is fixedly connected to the lower end of the second rotating shaft, and the upper end of the second rotating shaft is connected to the output shaft of the second drive mechanism.

[0010] In a preferred embodiment of the nutritional product preparation mixing tank of this utility model, the jacket shell includes a medium inlet pipe, and the medium inlet pipe is fixedly connected to the right side of the jacket shell near the bottom, and a first valve is provided on the medium inlet pipe.

[0011] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a compressed air inlet pipe is fixedly connected to the lower end of the medium inlet pipe, a second valve is provided on the compressed air inlet pipe, and the compressed air inlet pipe is located to the left of the first valve.

[0012] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a first three-way valve is fixedly connected to the right end of the medium inlet pipe, a cold water inlet pipe is fixedly connected to the upper end of the first three-way valve, and a hot water inlet pipe is fixedly connected to the lower end of the first three-way valve.

[0013] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a medium outlet pipe is fixedly connected to the left side of the jacket shell near the top, and a fourth valve is provided on the medium outlet pipe.

[0014] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a compressed air outlet pipe is fixedly connected to the upper end of the medium outlet pipe, a third valve is provided on the compressed air outlet pipe, and the compressed air outlet pipe is located to the right of the fourth valve.

[0015] In a preferred embodiment of the nutritional product preparation mixing tank described in this utility model, a second three-way valve is fixedly connected to the left end of the medium outlet pipe, a cold water outlet pipe is fixedly connected to the upper end of the second three-way valve, and a hot water outlet pipe is fixedly connected to the lower end of the second three-way valve.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: Liquid raw materials are first added to the main mixing tank, where they are mixed and stirred by the second drive mechanism and the stirring paddle. Powdered raw materials are then added to the second premixing tank. Under the action of the first drive mechanism, the stirring shaft drives the first stirring blade, the second stirring blade, and the third spiral blade to premix the powdered raw materials. The liquid raw materials mixed in the main mixing tank are then pumped into the first premixing tank in appropriate amounts through a delivery pump, delivery pipe, branch pipe, and inlet pipe. The mixture is then stirred at high speed by a variable frequency speed-regulating motor and a high-speed shearing stirring head. Simultaneously, the second discharge pipe is opened. The third spiral blade helps to discharge the powder mixture in the second premixing tube. The second spiral blade is driven to rotate by the first three-phase asynchronous motor and the second drive shaft to control the feeding of the powder mixture, so that the powder mixture is slowly added into the first premixing tank. The mixture inside the first premixing tank generates huge shear force under the action of high-speed stirring, which instantly tears the slowly added powder mixture, avoids agglomeration, and makes the particles evenly dispersed in the mixture to form a slurry. Then the mixed slurry is added into the main mixing tank for mixing again, which reduces the entry of trapped air, reduces the generation of foam, and improves the mixing uniformity. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic cross-sectional view of the main mixing tank of this utility model; Figure 3 This is a schematic cross-sectional view of the first premixing tank of this utility model; Figure 4 This is a schematic diagram of the high-speed shearing mixing head, the first drive shaft, and the first spiral blade of the present invention. Figure 5 This is a schematic diagram of the cross-sectional structure of the material conveying pipe of this utility model; Figure 6 This is a schematic cross-sectional view of the second premixing tank of this utility model.

[0018] In the diagram: 1. Main mixing tank; 101. Infusion pump; 102. Infusion pipe; 103. First butterfly valve; 104. Branch pipe; 105. Second butterfly valve; 106. Liquid raw material inlet pipe; 107. Agitator; 108. Second drive mechanism; 2. Jacket housing; 201. Medium inlet pipe; 202. First valve; 203. Compressed air inlet pipe; 204. Second valve; 205. First three-way valve; 206. Cold water inlet pipe; 207. Hot water inlet pipe; 208. Medium outlet pipe; 209. Compressed air outlet pipe; 210. Third valve; 211. Second three-way valve; 212. Cold water outlet pipe; 213. Hot water outlet pipe. 214. Fourth valve; 3. First premixing tank; 301. Liquid inlet pipe; 302. High-speed shearing stirring head; 303. Variable frequency speed control motor; 304. First drive shaft; 305. First spiral blade; 4. First discharge pipe; 5. Conveying pipe; 501. Second drive shaft; 502. Second spiral blade; 503. First three-phase asynchronous motor; 6. Second premixing tank; 601. Stirring shaft; 602. First drive mechanism; 603. First stirring blade; 604. Second stirring blade; 605. Third spiral blade; 606. Through hole; 607. Food-grade flexible scraper; 608. Second discharge pipe. Detailed Implementation

[0019] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0020] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0022] This invention provides a nutritional supplement preparation mixing tank. Liquid raw materials are first added to a main mixing tank, where a second drive mechanism and a stirring paddle mix the liquid raw materials. Powdered raw materials are then added to a second premixing tank. Under the action of a first drive mechanism, a stirring shaft drives a first stirring blade, a second stirring blade, and a third spiral blade to premix the powdered raw materials. The liquid raw materials mixed in the main mixing tank are then pumped into the first premixing tank in appropriate amounts via a delivery pump, delivery pipe, branch pipe, and inlet pipe. A variable frequency speed-regulating motor and a high-speed shearing stirring head agitate the mixture at high speed. Simultaneously, the second discharge pipe is opened, and the third spiral blade facilitates the discharge of the powder mixture from the second premixing tank. A first three-phase asynchronous motor and a second drive shaft drive the second spiral blade to rotate, controlling the feeding of the powder mixture. This allows the powder mixture to be slowly added into the first premixing tank. The mixture inside the first premixing tank generates enormous shear force under high-speed stirring, instantly tearing apart the slowly added powder mixture, preventing clumping, and ensuring that the particles are evenly dispersed throughout the mixture.

[0023] Figures 1-6 The diagram shown is an overall structural schematic of one embodiment of a nutritional supplement preparation mixing tank according to this utility model. Please refer to [link / reference]. Figures 1-6 This embodiment of a nutritional product preparation mixing tank includes a main mixing tank 1. A jacketed outer shell 2 is fixedly connected to the outer end of the main mixing tank 1. The upper end of the main mixing tank 1 is fixedly connected to a first discharge pipe 4 near the right side. The first discharge pipe 4 is fixedly installed at the lower end of a first premixing tank 3. The upper end of the first premixing tank 3 is connected to a second premixing tank 6 through a conveying pipe 5.

[0024] The first premixing tank 3 includes an inlet pipe 301. The inlet pipe 301 is fixedly connected to the upper end of the first premixing tank 3 near the right side. A first rotating shaft is rotatably connected through the top of the first premixing tank 3. The upper end of the first rotating shaft is connected to the output shaft of the variable frequency speed control motor 303. A high-speed shearing stirring head 302 is fixedly connected to the lower end of the first rotating shaft. The lower end of the high-speed shearing stirring head 302 is fixedly connected to the first drive shaft 304. A first spiral blade 305 is fixedly connected to the outer ring of the first drive shaft 304.

[0025] The mixture is stirred at high speed by the variable frequency speed control motor 303 and the high-speed shearing stirring head 302, which generates huge shear force in the mixture, instantly tearing apart the powder mixture that is added slowly afterward, preventing agglomeration, and making the particles evenly dispersed in the mixture to form a slurry. The first spiral blade 305 is stirred by the high-speed shearing stirring head 302. At the same time, when the subsequent slurry is discharged through the first discharge pipe 4, the first spiral blade 305 helps to discharge the slurry. A diaphragm valve is installed on the first discharge pipe 4, and a first liquid level sensor is installed in the first premixing tank 3 for monitoring the liquid level of the mixture added to the first premixing tank 3.

[0026] The conveying pipe 5 includes a second drive shaft 501 rotatably connected to the inner wall of the conveying pipe 5. The left end of the second drive shaft 501 passes through the conveying pipe 5 and is connected to the output shaft of the first three-phase asynchronous motor 503. The outer ring of the second drive shaft 501 is fixedly connected to a second spiral blade 502.

[0027] The first three-phase asynchronous motor 503 and the second transmission shaft 501 drive the second spiral blade 502 to rotate, controlling the feeding of the powder mixture, so that the powder mixture is slowly added into the first premix tank 3. The pitch of the second spiral blade 502 at the outlet gradually decreases, compressing the powder and helping to empty it.

[0028] The second premixing tank 6 includes a stirring shaft 601 that is rotatably connected to the top of the tank. The upper end of the stirring shaft 601 is connected to the output shaft of the first drive mechanism 602. The outer ring of the stirring shaft 601 is fixedly connected to a first stirring blade 603, a second stirring blade 604, and a third spiral blade 605. The first stirring blade 603 is positioned above the third spiral blade 605. A through hole 606 is provided on the first stirring blade 603. A food-grade flexible scraper 607 is fixedly connected to the outer end of the second stirring blade 604. A second discharge pipe 608 is fixedly connected to the lower end of the second premixing tank 6. The second premixing tank 6 is connected to the inlet pipe of the conveying pipe 5 through the second discharge pipe 608. The discharge pipe of the conveying pipe 5 is connected to the upper end of the first premixing tank 3.

[0029] Under the action of the first drive mechanism 602, the first stirring blade 603, the second stirring blade 604 and the third spiral blade 605 are driven by the stirring shaft 601 to premix the powder raw materials. The through hole 606 provided on the first stirring blade 603 helps the powder to pass through the first stirring blade 603 during mixing, which helps the powder to disperse and improve the mixing effect. The first drive mechanism 602 mainly includes a second three-phase asynchronous motor and a first reducer. The powder adhering to the inner wall of the second premixing tank 6 is cleaned and scraped by the food-grade flexible scraper 607. The food-grade flexible scraper 607 is made of food-grade polytetrafluoroethylene.

[0030] The main mixing tank 1 includes a pump 101. The lower discharge pipe of the main mixing tank 1 is connected to the inlet of the pump 101. The outlet of the pump 101 is connected to the delivery pipe 102. A first butterfly valve 103 is provided on the delivery pipe 102. A branch pipe 104 is fixedly connected to the upper end of the delivery pipe 102. The branch pipe 104 is located to the left of the first butterfly valve 103. A second butterfly valve 105 is provided on the branch pipe 104. The branch pipe 104 is connected to the inlet pipe 301 through an external pipe. A liquid raw material inlet pipe 106 is fixedly connected to the upper end of the main mixing tank 1 near the left side. A second rotating shaft is rotatably connected through the top of the main mixing tank 1. A stirring paddle 107 is fixedly connected to the lower end of the second rotating shaft. The upper end of the second rotating shaft is connected to the output shaft of the second drive mechanism 108.

[0031] Close the first butterfly valve 103 and open the second butterfly valve 105. A suitable amount of mixed liquid is drawn into the first premixing tank 3 through the infusion pump 101, infusion pipe 102, branch pipe 104 and inlet pipe 301. The second drive mechanism 108 drives the stirring paddle 107 to stir the liquid raw materials and the subsequent stirring of the liquid raw materials and mixed slurry through the second rotating shaft. The second drive mechanism 108 mainly includes a third three-phase asynchronous motor and a second reducer. The main mixing tank 1 is equipped with a second hydraulic sensor and a temperature sensor. The temperature sensor is used to detect the internal temperature of the main mixing tank 1, which is a prior art structure.

[0032] The jacket housing 2 includes a medium inlet pipe 201. The medium inlet pipe 201 is fixedly connected to the right side of the jacket housing 2 near the bottom. A first valve 202 is installed on the medium inlet pipe 201. A compressed air inlet pipe 203 is fixedly connected to the lower end of the medium inlet pipe 201. A second valve 204 is installed on the compressed air inlet pipe 203, which is located to the left of the first valve 202. A first three-way valve 205 is fixedly connected to the right end of the medium inlet pipe 201. A cold water inlet pipe 206 is fixedly connected to the upper end of the first three-way valve 205, and a... A hot water inlet pipe 207 is fixedly connected to a medium outlet pipe 208 near the upper left side of the jacket housing 2. A fourth valve 214 is installed on the medium outlet pipe 208. A compressed air outlet pipe 209 is fixedly connected to the upper end of the medium outlet pipe 208. A third valve 210 is installed on the compressed air outlet pipe 209. The compressed air outlet pipe 209 is located to the right of the fourth valve 214. A second three-way valve 211 is fixedly connected to the left end of the medium outlet pipe 208. A cold water outlet pipe 212 is fixedly connected to the upper end of the second three-way valve 211. A hot water outlet pipe 213 is fixedly connected to the lower end of the second three-way valve 211.

[0033] Heating and cooling of the main mixing tank 1 are performed by a PLC programmable logic controller according to a preset process formula. The common sequence is heating first, then cooling. During the heating phase, the second valve 204 and the third valve 210 are closed. Hot water medium enters the jacket shell 2 through the hot water inlet pipe 207, the first three-way valve 205, and the medium inlet pipe 201 to heat the main mixing tank 1. It is then discharged through the medium outlet pipe 208, the second three-way valve 211, and the hot water outlet pipe 213, promoting mixing and dissolution. During the heat preservation phase, intermittent heating is controlled by the system. During the cooling phase, the PLC closes the hot water medium valves, emptying the jacket shell 2. During the venting phase, the first valve 202 and the fourth valve 214 are closed, and the first valve 202 is opened. The second valve 204 and the third valve 210 allow compressed air to enter the jacket shell 2 through the compressed air inlet pipe 203 and the medium inlet pipe 201. The residual liquid in the jacket shell 2 is blown into the storage tank through the medium outlet pipe 208 and the compressed air outlet pipe 209. Then, the second valve 204 and the third valve 210 are closed, and the first valve 202 and the fourth valve 214 are opened. The cold water medium enters the jacket shell 2 through the cold water inlet pipe 206, the first three-way valve 205 and the medium inlet pipe 201 to cool the inside of the main mixing tank 1. The medium is then discharged through the medium outlet pipe 208, the second three-way valve 211 and the cold water outlet pipe 212. The above-mentioned heating, cooling and venting system control technology is existing technology.

[0034] Combination Figures 1-6The specific usage process of a nutritional product preparation mixing tank according to this embodiment is as follows: The second drive mechanism 108 drives the stirring paddle 107 to stir the liquid raw materials via the second rotating shaft. Under the action of the first drive mechanism 602, the stirring shaft 601 drives the first stirring blade 603, the second stirring blade 604, and the third spiral blade 605 to premix the powder raw materials. The through hole 606 provided on the first stirring blade 603 helps the powder to pass through the first stirring blade 603 during mixing, which helps disperse the powder and improves the mixing effect. The food-grade flexible scraper 607 cleans and scrapes the powder adhering to the inner wall of the second premixing tank 6. The first butterfly valve 103 is closed, and the second butterfly valve 105 is opened. An appropriate amount of mixed liquid is drawn into the first premixing tank 3 through the infusion pump 101, infusion pipe 102, branch pipe 104, and inlet pipe 301. The mixture is then transferred to the first premixing tank 3 via a variable frequency drive. The speed-regulating motor 303 and the high-speed shearing mixing head 302 are used to stir the mixture at high speed. The butterfly valve on the second discharge pipe 608 is opened, and the third spiral blade 605 helps the mixed powder to be discharged into the conveying pipe 5. The first three-phase asynchronous motor 503 and the second transmission shaft 501 drive the second spiral blade 502 to rotate, controlling the feeding of the powder mixture. The powder mixture is slowly added into the first premixing tank 3. The mixture stirred at high speed in the first premixing tank 3 generates a huge shearing force, which instantly tears the powder mixture added slowly afterward, preventing agglomeration and making the particles evenly dispersed in the mixture to form a slurry. After mixing, the first discharge pipe 4 is opened to discharge the slurry into the main mixing tank 1 for further mixing. After all the raw materials are added and mixed, water or other solvents are added quantitatively to the final total amount. It is important not to add too much.

[0035] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A nutritional product formulation mixing tank comprising a main mixing tank (1), characterized in that: The outer end of the main mixing tank (1) is fixedly connected to a jacketed shell (2). The upper end of the main mixing tank (1) is fixedly connected to the first discharge pipe (4) near the right side. The first discharge pipe (4) is fixedly installed at the lower end of the first premixing tank (3). The upper end of the first premixing tank (3) is connected to the second premixing tank (6) through a conveying pipe (5). The first premixing tank (3) includes an inlet pipe (301). The inlet pipe (301) is fixedly connected to the upper end of the first premixing tank (3) near the right side. A first rotating shaft is rotatably connected through the top end of the first premixing tank (3). The upper end of the first rotating shaft is connected to the output shaft of a variable frequency speed control motor (303). A high-speed shearing stirring head (302) is fixedly connected to the lower end of the first rotating shaft. The lower end of the high-speed shearing stirring head (302) is fixedly connected to a first transmission shaft (304). A first spiral blade (305) is fixedly connected to the outer ring of the first transmission shaft (304). The conveying pipe (5) includes a second drive shaft (501) rotatably connected to the inner wall of the conveying pipe (5). The left end of the second drive shaft (501) passes through the conveying pipe (5) and is connected to the output shaft of the first three-phase asynchronous motor (503). The outer ring of the second drive shaft (501) is fixedly connected with a second spiral blade (502). The second premixing tank (6) includes a stirring shaft (601) that is rotatably connected to the top of the second premixing tank (6). The upper end of the stirring shaft (601) is connected to the output shaft of the first drive mechanism (602). The outer ring of the stirring shaft (601) is fixedly connected to a first stirring blade (603), a second stirring blade (604) and a third spiral blade (605). The first stirring blade (603) is disposed above the third spiral blade (605). A through hole (606) is opened through the first stirring blade (603). A food-grade flexible scraper (607) is fixedly connected to the outer end of the second stirring blade (604). A second discharge pipe (608) is fixedly connected to the lower end of the second premixing tank (6). The second premixing tank (6) is connected to the feed end pipe of the conveying pipe (5) through the second discharge pipe (608). The discharge end pipe of the conveying pipe (5) is connected to the upper end of the first premixing tank (3).

2. The nutritional product compounding and mixing tank of claim 1, wherein: The main mixing tank (1) includes a delivery pump (101). The lower discharge pipe of the main mixing tank (1) is connected to the inlet port of the delivery pump (101). The outlet port of the delivery pump (101) is connected to the delivery pipe (102). A first butterfly valve (103) is provided on the delivery pipe (102).

3. The nutritional product compounding and mixing tank of claim 2, wherein: The upper end of the infusion tube (102) is fixedly connected to a branch tube (104), the branch tube (104) is located to the left of the first butterfly valve (103), the branch tube (104) is provided with a second butterfly valve (105), and the branch tube (104) is connected to the infusion tube (301) through an external tube.

4. The nutritional product compounding and mixing tank of claim 1, wherein: The main mixing tank (1) is fixedly connected to a liquid raw material inlet pipe (106) near the left side of the upper end. The top of the main mixing tank (1) is rotatably connected to a second rotating shaft. The lower end of the second rotating shaft is fixedly connected to a stirring paddle (107). The upper end of the second rotating shaft is connected to the output shaft of the second drive mechanism (108).

5. The nutritional product compounding and mixing tank of claim 1, wherein: The jacket housing (2) includes a medium inlet pipe (201). The medium inlet pipe (201) is fixedly connected to the right side of the jacket housing (2) near the bottom. A first valve (202) is provided on the medium inlet pipe (201).

6. The nutritional product compounding and mixing tank of claim 5, wherein: The lower end of the medium inlet pipe (201) is fixedly connected to a compressed air inlet pipe (203), and a second valve (204) is provided on the compressed air inlet pipe (203). The compressed air inlet pipe (203) is located to the left of the first valve (202).

7. The nutritional product compounding and mixing tank of claim 5, wherein: The right end of the medium inlet pipe (201) is fixedly connected to a first three-way valve (205), the upper end of the first three-way valve (205) is fixedly connected to a cold water inlet pipe (206), and the lower end of the first three-way valve (205) is fixedly connected to a hot water inlet pipe (207).

8. The nutritional product compounding and mixing tank of claim 1, wherein: A medium outlet pipe (208) is fixedly connected to the left side of the jacket shell (2) near the top, and a fourth valve (214) is provided on the medium outlet pipe (208).

9. The nutritional product compounding and mixing tank of claim 8, wherein: The upper end of the medium outlet pipe (208) is fixedly connected to a compressed air outlet pipe (209), and a third valve (210) is provided on the compressed air outlet pipe (209). The compressed air outlet pipe (209) is located to the right of the fourth valve (214).

10. A nutritional supplement preparation mixing tank according to claim 8, characterized in that: The left end of the medium outlet pipe (208) is fixedly connected to a second three-way valve (211), the upper end of the second three-way valve (211) is fixedly connected to a cold water outlet pipe (212), and the lower end of the second three-way valve (211) is fixedly connected to a hot water outlet pipe (213).

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