Vacuum dilute acid tank for stevia rebaudiana production

Abstract

The utility model relates to the technical field of dilute acid tanks, in particular to a vacuum dilute acid tank for stevia rebaudiana production, which comprises a storage component capable of storing dilute acid solution in vacuum, a displacement component convenient for the dilute acid tank to move is arranged at the bottom of the storage component, and a uniform mixing component for stirring and uniformly mixing the dilute acid solution is arranged on one side of the storage component; wherein the uniform mixing assembly comprises a main shaft, and the side part of the main shaft is fixedly inserted into the centers of the two groups of mounting frames. According to the utility model, by using the uniform mixing component, the raw materials are stirred and mixed before being discharged, so that the stirring of dilute acid liquid is enhanced, the discharged dilute acid liquid is effectively prevented from precipitating, and the normal effect of the dilute acid liquid is further ensured. By using the storage assembly, negative pressure is formed in the tank body, under the action of the one-way valve, external air cannot enter the tank body through the one-way valve, reaction between the air and the acid liquid is effectively reduced, and then the purity of the acid liquid is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of dilute acid tank technology, specifically a vacuum dilute acid tank for stevia production. Background Technology

[0002] Dilute acid is indeed required in the production of stevia. In the preparation of stevia extract, dried stevia leaves are typically soaked in water, and then the liquid is separated from the leaves and stems through filtration. Next, purification is carried out using water or food-grade alcohol, a process that may involve dilute acid. A dilute acid tank is a device used to store dilute acidic chemicals, typically made of corrosion-resistant materials such as fiberglass. The main purpose of dilute acid tanks is to store and transport acidic liquids such as dilute hydrochloric acid, dilute sulfuric acid, and dilute nitric acid.

[0003] However, in traditional dilute acid tanks, the air inside the tank can easily react with the acidic liquid, thereby reducing the purity of the acidic liquid. At the same time, the acidic liquid is prone to precipitation after being stored for a long time, which affects its use. Utility Model Content

[0004] The purpose of this invention is to provide a vacuum dilute acid tank for stevia production, which enables vacuum storage of raw materials and mixing before discharge, thereby solving the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a vacuum dilute acid tank for stevia production, comprising a storage component capable of vacuum storage of dilute acid solution, a displacement component at the bottom of the storage component to facilitate movement of the dilute acid tank, and a mixing component on one side of the storage component for stirring and mixing the dilute acid solution.

[0006] The mixing assembly includes: a main shaft, the side of which is fixedly inserted into the center of two sets of mounting brackets, the ends of which are rotatably connected to the ends of three sets of secondary shafts, one end of which is fixedly inserted into the inside of a gear, and several sets of blades are evenly distributed on the outside of which.

[0007] Preferably, one end of the main shaft is connected to the output shaft of the motor via a coupling, the motor is externally fixedly mounted on one side of the housing, and the external of the housing is externally fixedly connected to the ends of the inlet pipe and the outlet pipe.

[0008] Preferably, the inner wall of the outer casing is provided with a circular groove, and the sidewall of the circular groove is uniformly provided with teeth, the outer side of which meshes with the outer side of the gear.

[0009] Preferably, the storage component includes: a tank, the top of which is fixedly connected to the air inlet of a one-way valve, and the top of which is also fixedly connected to one end of a feed valve.

[0010] Preferably, the side of the tank is fixedly connected to one end of the discharge valve, and the other end of the discharge valve is fixedly connected to the end of the inlet pipe.

[0011] Preferably, the displacement assembly includes: an annular frame, the top of which is fixedly connected to the bottom of the tank, and the bottom of which is fixedly connected to the top of the carrier plate via a support rod.

[0012] Preferably, the top of the carrier plate is also connected to the bottom of the outer shell, and casters are installed at the four corners of the bottom of the carrier plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention utilizes a mixing component to agitate and mix the raw materials before discharge, thereby enhancing the stirring of the dilute acid solution and effectively preventing precipitation in the discharged solution, thus ensuring its proper function. The storage component creates negative pressure within the tank, and the one-way valve prevents external air from entering, effectively reducing the reaction between air and the acidic liquid and thus guaranteeing its purity.

[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention can be realized and obtained through the structures pointed out in the description and the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the external structure of the mixing component of this utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the mixing component of this utility model;

[0019] Figure 4 This is a schematic diagram of the displacement component structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the storage component structure of this utility model.

[0021] In the diagram: 1. Mixing assembly; 11. Inlet pipe; 12. Outer shell; 13. Motor; 14. Outlet pipe; 15. Blade; 16. Sub-shaft; 17. Mounting bracket; 18. Main shaft; 19. Gear; 110. Tooth; 2. Displacement assembly; 21. Ring frame; 22. Support rod; 23. Carrier plate; 24. Casters; 3. Storage assembly; 31. Check valve; 32. Feed valve; 33. Tank body; 34. Discharge valve. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-5 This utility model provides a technical solution: a vacuum dilute acid tank for stevia production, comprising: a storage component 3 capable of vacuum storage of dilute acid solution, a displacement component 2 at the bottom of the storage component 3 for facilitating the movement of the dilute acid tank, and a mixing component 1 on one side of the storage component 3 for stirring and mixing the dilute acid solution.

[0024] The mixing assembly 1 includes: a main shaft 18, the side of which is fixedly inserted into the center of two sets of mounting brackets 17. The ends of the two sets of mounting brackets 17 are rotatably connected to the ends of three sets of auxiliary shafts 16. One end of the auxiliary shafts 16 is fixedly inserted into the interior of a gear 19, and several sets of blades 15 are evenly distributed on the exterior of the auxiliary shafts 16. One end of the main shaft 18 is connected to the output shaft of a motor 13 via a coupling. The exterior of the motor 13 is fixedly mounted on one side of a housing 12, and the exterior of the housing 12 is fixedly connected to the ends of the inlet pipe 11 and the outlet pipe 14. The inner wall of the housing 12 is provided with a circular groove, and the sidewall of the circular groove is evenly provided with teeth 110, the exterior of which meshes with the exterior of the gear 19.

[0025] Furthermore, when the dilute acid flows into the outer casing 12, the motor 13 drives the main shaft 18 to rotate. When the main shaft 18 rotates, it also drives the mounting frame 17 to rotate. The mounting frame 17 then drives the secondary shaft 16 to rotate around the main shaft 18. At the same time, the secondary shaft 16 drives the gear 19 and the blade 15 to rotate. When the secondary shaft 16 rotates, it stirs the raw materials inside the outer casing 12, thereby achieving mixing of the raw materials before discharge. Since the gear 19 and the teeth 110 on the inner wall of the outer casing 12 are meshed, the gear 19 will rotate when it rotates. The rotation of the gear 19 will drive the secondary shaft 16 to rotate, and the secondary shaft 16 will drive the blade 15 to rotate. Thus, the blade 15 will rotate while rotating around the main shaft 18, thereby strengthening the stirring of the dilute acid and effectively preventing the discharge of the dilute acid from settling, thus ensuring the normal function of the dilute acid liquid.

[0026] The storage assembly 3 includes: a tank 33, the top of which is fixedly connected to the air inlet of a one-way valve 31, and the top of the tank 33 is also fixedly connected to one end of a feed valve 32. The side of the tank 33 is fixedly connected to one end of a discharge valve 34, and the other end of the discharge valve 34 is fixedly connected to the end of a liquid inlet pipe 11.

[0027] Furthermore, firstly, with the discharge valve 34 closed, the dilute acid solution is injected into the tank 33 through the feed valve 32, but not too full. After injection, the feed valve 32 is closed, and the one-way valve 31 is connected to the vacuum pump to extract the air from the tank 33, creating a negative pressure inside. Under the action of the one-way valve 31, external air cannot enter the tank 33, effectively reducing the reaction between air and the acidic liquid, thus ensuring the purity of the acidic liquid. When it is necessary to discharge the dilute acid solution, first open the feed valve 32 to balance the pressure difference inside and outside the tank 33, and then open the discharge valve 34 to allow the dilute acid solution in the tank 33 to flow into the mixing assembly 1.

[0028] The displacement assembly 2 includes an annular frame 21, the top of which is fixedly connected to the bottom of the tank 33, and the bottom of which is fixedly connected to the top of the carrier plate 23 via a support rod 22. The top of the carrier plate 23 is also connected to the bottom of the outer shell 12, and casters 24 are installed at the four corners of the bottom of the carrier plate 23.

[0029] Furthermore, the casters 24 make it easier to move the entire vacuum dilute acid tank.

[0030] Working principle: First, the discharge valve 34 is closed. Then, dilute acid is injected into the tank 33 through the feed valve 32, but not too full. After filling, the feed valve 32 is closed, and the one-way valve 31 is connected to the vacuum pump to extract the air from the tank 33, creating a negative pressure inside. Under the action of the one-way valve 31, external air cannot enter the tank 33, effectively reducing the reaction between air and the acidic liquid, thus ensuring the purity of the acidic liquid. When it is necessary to discharge the dilute acid, first open the feed valve 32 to balance the pressure difference inside and outside the tank 33, and then open the discharge valve 34 to allow the dilute acid in the tank 33 to flow into the mixing component 1.

[0031] When the dilute acid flows into the outer casing 12, the motor 13 drives the main shaft 18 to rotate. The rotation of the main shaft 18 drives the mounting frame 17 to rotate as well. The mounting frame 17 then drives the secondary shaft 16 to rotate around the main shaft 18. At the same time, the secondary shaft 16 drives the gear 19 and the blades 15 to rotate. When the secondary shaft 16 rotates, it stirs the raw materials inside the outer casing 12, thereby achieving mixing of the raw materials before discharge. Since the gear 19 and the teeth 110 on the inner wall of the outer casing 12 are meshed, the gear 19 will rotate when it rotates. The rotation of the gear 19 will drive the secondary shaft 16 to rotate, and the secondary shaft 16 will drive the blades 15 to rotate. Thus, the blades 15 will rotate while rotating around the main shaft 18, thereby strengthening the stirring of the dilute acid and effectively preventing the discharge of the dilute acid from settling, thus ensuring the normal function of the dilute acid liquid.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vacuum dilute acid tank for stevia production, characterized in that, It includes a storage component (3) that can vacuum store dilute acid solution, a displacement component (2) at the bottom of the storage component (3) to facilitate the movement of the dilute acid tank, and a mixing component (1) on one side of the storage component (3) for stirring and mixing the dilute acid solution. The mixing assembly (1) includes a main shaft (18), the side of which is fixedly inserted into the center of two sets of mounting brackets (17), the ends of which are rotatably connected to the ends of three sets of secondary shafts (16), one end of which is fixedly inserted into the inside of a gear (19), and several sets of blades (15) are evenly distributed on the outside of which are secondary shafts (16).

2. The vacuum dilute acid tank for stevia production according to claim 1, characterized in that: One end of the main shaft (18) is connected to the output shaft of the motor (13) via a coupling. The motor (13) is externally fixedly installed on one side of the housing (12). The housing (12) is externally fixedly connected to the ends of the inlet pipe (11) and the outlet pipe (14).

3. The vacuum dilute acid tank for stevia production according to claim 2, characterized in that: The inner wall of the outer shell (12) is provided with a circular groove, and the side wall of the circular groove is uniformly provided with teeth (110), and the outer side of the teeth (110) meshes with the outer side of the gear (19).

4. A vacuum dilute acid tank for stevia production according to claim 2, characterized in that: The storage component (3) includes: a tank (33), the top of which is fixedly connected to the air inlet of a one-way valve (31), and the top of which is also fixedly connected to one end of a feed valve (32).

5. A vacuum dilute acid tank for stevia production according to claim 4, characterized in that: The side of the tank (33) is fixedly connected to one end of the discharge valve (34), and the other end of the discharge valve (34) is fixedly connected to the end of the inlet pipe (11).

6. A vacuum dilute acid tank for stevia production according to claim 4, characterized in that: The displacement assembly (2) includes: an annular frame (21), the top of which is fixedly connected to the bottom of the tank (33), and the bottom of which is fixedly connected to the top of the carrier plate (23) by a support rod (22).

7. A vacuum dilute acid tank for stevia production according to claim 6, characterized in that: The top of the carrier plate (23) is also connected to the bottom of the outer shell (12), and casters (24) are installed at the four corners of the bottom of the carrier plate (23).

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