Efficient stirring and automatic sampling device for liquid preparation tank

Abstract

This invention relates to the field of liquid preparation tank technology, specifically to a high-efficiency stirring and automatic sampling device for liquid preparation tanks. The device includes a tank body with a rotating column rotatably mounted inside. A drive assembly is provided on the tank body to drive the rotating column to rotate around its own axis. A stirring frame for stirring the liquid is fixedly mounted on the rotating column. An internal channel is formed along the axial direction of the rotating column. Multiple liquid sampling tubes are fixedly mounted on the rotating column, distributed along its axial direction and connected to the internal channel. The drive assembly drives the rotating column to rotate, thereby driving the stirring frame to achieve efficient stirring of the liquid preparation process and improve mixing uniformity. The liquid sampling tubes on the rotating column rotate synchronously with it, working in conjunction with the internal channel and the liquid sampling assembly to complete automatic sampling from multiple areas, ensuring sample representativeness. A rotary joint ensures a stable and sealed connection between the rotating and fixed pipelines. The entire device achieves coordinated operation of stirring and sampling, simplifying the operation process and improving the practicality and reliability of liquid preparation production.

Description

Technical Field

[0001] This invention relates to the field of liquid preparation tank technology, specifically to a high-efficiency stirring and automatic sampling device for liquid preparation tanks. Background Technology

[0002] Liquid mixing tanks are widely used in pharmaceutical, chemical, and food industries, primarily for mixing and preparing liquid raw materials. The uniformity of stirring directly affects the quality of the prepared solution, and sampling and testing are crucial steps in verifying whether the solution meets standards. In existing technologies, sampling methods generally employ a fixed sampling port design. This fixed port position allows for the collection of liquid samples from only a specific localized area within the tank, failing to cover mixing areas at different heights and radial positions within the tank. Especially in scenarios such as insufficient stirring in the initial stage of mixing, localized concentration fluctuations in the middle stage, or slight liquid stratification in the later stage, samples collected from a fixed sampling port are prone to exhibiting characteristics of a single region, making it difficult to accurately reflect the overall mixing uniformity and compositional consistency of the prepared solution, resulting in poor sample representativeness. Therefore, this invention proposes a high-efficiency stirring and automatic sampling device for liquid mixing tanks to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a high-efficiency stirring and automatic sampling device for a liquid preparation tank. By coordinating stirring and sampling and using a rotating liquid sampling design, the device improves the uniformity of liquid preparation and the representativeness of samples, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a high-efficiency stirring and automatic sampling device for a liquid mixing tank, comprising a tank body, a rotating column rotatably mounted inside the tank body, a driving assembly for driving the rotating column to rotate around its own axis on the tank body, a stirring frame for stirring liquid fixedly mounted on the rotating column, an internal channel opened along its axial direction inside the rotating column, a plurality of liquid sampling pipes distributed along its axial direction and connected to the internal channel fixed on the rotating column, a liquid extraction assembly for extracting liquid in the internal channel on the tank body, and a sampling bucket provided on the tank body corresponding to the liquid outlet end of the liquid extraction assembly.

[0005] Preferably, the drive assembly includes a support frame fixedly installed on the upper end of the tank, a drive motor fixedly installed on the support frame, and a first gear fixedly connected to the output end of the drive motor.

[0006] Preferably, a second gear meshes with the first gear, and the second gear is fixedly sleeved on the upper outer wall of the rotating column.

[0007] Preferably, the liquid extraction assembly includes a short tube fixedly installed on the upper end of the rotating column and connected to the internal channel, and a connecting bend is connected to the end of the short tube away from the rotating column.

[0008] Preferably, a water pump is connected to the end of the connecting bend away from the short pipe. The water pump is fixedly installed on the tank body, and a liquid outlet pipe is connected to the liquid outlet end of the water pump. The outlet end of the liquid outlet pipe is set corresponding to the sampling bucket.

[0009] Preferably, the short pipe and the connecting bend are connected by a rotary joint, wherein the fixed end of the rotary joint is sealed to the connecting bend, and the rotating end of the rotary joint is sealed to the short pipe.

[0010] Preferably, all of the liquid collection tubes are arranged at an angle downwards, and the liquid inlet of each liquid collection tube is located at the end away from the rotating column.

[0011] Preferably, the bottom of the tank is fixedly equipped with multiple support legs for support, and the upper end of the tank is provided with a feed port for adding liquid.

[0012] Compared with the prior art, the beneficial effects of the present invention are: The rotating column is driven by a drive component, which in turn drives the stirring rack to achieve efficient mixing of the solution and improve the uniformity of the mixture. The liquid sampling tube on the rotating column rotates synchronously with it, and together with the internal channel and liquid extraction component, it completes automatic sampling in multiple areas to ensure the representativeness of the samples. The rotary joint ensures a stable and sealed connection between the rotating and fixed pipelines. The whole system realizes the coordinated operation of stirring and sampling, simplifies the operation process, and improves the practicality and reliability of solution preparation and production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 This is a schematic diagram of the drive component structure of the present invention.

[0015] Figure 3 This is a schematic diagram of the internal structure of the tank of the present invention.

[0016] Figure 4 This is a schematic diagram of the internal structure of the rotating column of the present invention.

[0017] Figure 5 This is a schematic diagram of the short tube structure of the present invention.

[0018] In the diagram: 1. Tank body; 2. Drive assembly; 3. Liquid extraction assembly; 4. Rotating column; 5. Internal channel; 6. Support leg; 7. Sampling bucket; 8. Stirring rack; 21. Support frame; 22. Drive motor; 23. First gear; 24. Second gear; 31. Short pipe; 32. Rotary joint; 33. Connecting bend; 34. Water pump; 35. Liquid outlet pipe; 36. Liquid extraction pipe. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0021] Please see Figures 1 to 5 This invention provides a technical solution: a high-efficiency stirring and automatic sampling device for a liquid mixing tank, comprising a tank body 1, which is a hollow cylindrical structure, with multiple support legs 6 evenly fixedly installed on the outer periphery of its bottom. The support legs 6 are fixed to the bottom of the tank body 1 by welding to provide stable support for the entire device and prevent the tank body 1 from shaking during stirring and sampling. A feed inlet is provided on one side of the upper end of the tank body 1. The feed inlet is a circular opening structure for adding the liquid raw material to be stirred into the tank body 1. A sealing cap can be installed at the feed inlet according to actual needs to prevent liquid splashing during stirring.

[0022] like Figure 3 As shown, a rotating column 4 is rotatably mounted on the top center of tank 1 via a bearing. The rotating column 4 is a cylindrical structure, and its axis coincides with the axis of tank 1. The inner ring of the bearing is interference-fitted with the outer wall of the rotating column 4, and the outer ring is interference-fitted with the mounting hole on the top of tank 1, ensuring that the rotating column 4 can rotate smoothly around its own axis. The upper end of the rotating column 4 extends to the outside of tank 1, and the lower end extends to the inside of tank 1 near the bottom, so that the rotation of the rotating column 4 can cover most of the liquid area inside tank 1.

[0023] like Figure 2As shown, a drive assembly 2 is fixedly installed on the top of the tank 1. The drive assembly 2 includes a support frame 21, a drive motor 22, a first gear 23, and a second gear 24. The support frame 21 is a portal frame structure, and its bottom is fixedly installed on the top of the tank 1 by bolts. The drive motor 22 is fixedly installed below the crossbeam of the support frame 21 by bolts. The output end of the drive motor 22 is set vertically downward and is fixedly connected to the first gear 23 to ensure that the power output by the drive motor 22 can be stably transmitted to the first gear 23. The second gear 24 is fixedly sleeved on the part of the rotating column 4 that extends out of the tank 1 by a flat key, and the second gear 24 meshes with the first gear 23. The meshing gap is controlled within a reasonable range to ensure the smoothness of power transmission. By starting and stopping the drive motor 22, the forward and reverse rotation and speed adjustment of the rotating column 4 can be realized.

[0024] like Figure 3 As shown, the part of the rotating column 4 located inside the tank 1 is fixedly equipped with a stirring frame 8. The stirring frame 8 includes multiple stirring rods that are spaced apart along the axial direction of the rotating column 4. The stirring rods are fixedly connected to the rotating column 4 by welding.

[0025] like Figure 4 As shown, an internal channel 5 is formed along the axial direction inside the rotating column 4. The upper end of the internal channel 5 is connected to the upper end face of the rotating column 4, and the lower end is closed to prevent liquid leakage from the lower end of the rotating column 4. Multiple liquid sampling tubes 36 are fixed on the outer wall inside the tank 1 of the rotating column 4. The liquid sampling tubes 36 are evenly distributed along the axial direction of the rotating column 4, and the axially distributed liquid sampling tubes 36 correspond to liquid areas at different heights to ensure that liquid samples from multiple areas inside the tank 1 can be collected. One end of each liquid sampling tube 36 is welded and fixed to the outer wall of the rotating column 4 and is connected to the internal channel 5. The other end is a free end with a liquid inlet. A filter screen can be installed at the liquid inlet to prevent impurities in the liquid from entering the liquid sampling tube 36 and causing blockage.

[0026] like Figure 2 as well as Figure 5 As shown, a liquid extraction assembly 3 is also provided on the top of the tank 1. The liquid extraction assembly 3 includes a short pipe 31, a rotary joint 32, a connecting bend 33, a water pump 34, and a liquid outlet pipe 35. The short pipe 31 is a cylindrical tubular structure. One end of it is welded and fixed to the upper end face of the rotating column 4 and coaxially connected with the internal channel 5 to ensure that the liquid in the internal channel 5 can flow smoothly into the short pipe 31. The other end of the short pipe 31 is connected to the connecting bend 33 through the rotary joint 32. The rotating end of the rotary joint 32 is connected to the outer wall of the short pipe 31 by a threaded seal, and the fixed end is connected to one end of the connecting bend 33 by a threaded seal. The rotary joint 32 can ensure that the connecting bend 33 remains fixed when the rotating column 4 drives the short pipe 31 to rotate, and at the same time achieve a sealed connection between the two to prevent liquid leakage.

[0027] like Figure 2 as well as Figure 5 As shown, the other end of the connecting bend 33 is sealed to the inlet end of the water pump 34 through a flange. The water pump 34 is fixedly installed on the mounting base on the top of the tank 1 by bolts. The mounting base is welded to the tank 1 to ensure that the water pump 34 is installed firmly. The outlet end of the water pump 34 is sealed to one end of the outlet pipe 35 through a flange. The outlet pipe 35 is a rigid tubular structure, and its other end extends to the top of the sampling bucket 7, with the outlet facing the opening of the sampling bucket 7.

[0028] The sampling bucket 7 is a barrel-shaped structure with an open top, placed on the outer wall of the tank 1 to ensure that the liquid flowing out of the outlet pipe 35 can accurately flow into the sampling bucket 7. The sampling bucket 7 can be set with a scale for easy observation of the sampling amount.

[0029] In this embodiment, all components that come into contact with the liquid, such as the tank 1, rotating column 4, stirring rack 8, liquid collection pipe 36, short pipe 31, connecting bend 33, liquid outlet pipe 35, and sampling bucket 7, are made of corrosion-resistant materials, such as stainless steel, to meet the liquid preparation needs of different industries and extend the service life of the device. At the same time, the drive motor 22 and water pump 34 are equipped with control switches, which can be automated through an external controller to further improve the ease of operation of the device.

[0030] In actual use, the liquid to be stirred is added into the tank 1 through the feed port at the top of the tank 1. Then, the drive motor 22 is started, and the first gear 23 fixedly connected to the output end of the drive motor 22 rotates accordingly. The first gear 23 meshes with the second gear 24 fixedly installed on the rotating column 4, thereby driving the rotating column 4 to rotate inside the tank 1. The stirring frame 8 fixedly installed on the rotating column 4 rotates synchronously, which efficiently stirs the mixture in the tank 1 and effectively improves the uniformity of liquid mixing. Meanwhile, the rotating column 4 has an internal channel 5, and multiple liquid collection tubes 36 connected to the internal channel 5 are fixed on the rotating column 4. The liquid collection tubes 36 rotate together with the rotating column 4, which can cover different areas inside the tank 1, avoiding the problem of single sample caused by traditional fixed liquid collection ports. When sampling is required, the water pump 34, which is fixedly installed on the tank 1 in the liquid extraction assembly 3, is started. The liquid in the tank 1 enters the internal channel 5 through multiple liquid extraction pipes 36, and then flows out through the short pipe 31 fixed at the upper end of the rotating column 4 and connected to the internal channel 5. The liquid flows into the inlet end of the water pump 34 through the connecting bend pipe 33, and then flows out through the outlet pipe 35 connected to the outlet end of the water pump 34, and finally flows into the sampling bucket 7 set on the tank 1 to complete the sampling.

[0031] It should be noted that all electrical components mentioned in this article are electrically connected to the controller and power supply. The control method of this utility model is controlled by the controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the art. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0033] Although embodiments of the 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 invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency stirring and automatic sampling device for a liquid mixing tank, comprising a tank body (1), characterized in that: A rotating column (4) is rotatably installed inside the tank (1). A driving assembly (2) is provided on the tank (1) to drive the rotating column (4) to rotate around its own axis. A stirring rack (8) for stirring liquid is fixedly installed on the rotating column (4). An internal channel (5) is opened inside the rotating column (4) along its axial direction. Multiple liquid extraction pipes (36) are fixed on the rotating column (4) and distributed along its axial direction and connected to the internal channel (5). A liquid extraction assembly (3) for extracting liquid in the internal channel (5) is provided on the tank (1). A sampling bucket (7) is provided on the tank (1) corresponding to the liquid outlet of the liquid extraction assembly (3).

2. The high-efficiency stirring and automatic sampling device for a liquid mixing tank according to claim 1, characterized in that: The drive assembly (2) includes a support frame (21) fixedly installed on the upper end of the tank (1), a drive motor (22) fixedly installed on the support frame (21), and a first gear (23) fixedly connected to the output end of the drive motor (22).

3. The high-efficiency stirring and automatic sampling device for a liquid mixing tank according to claim 2, characterized in that: The first gear (23) is meshed with a second gear (24), which is fixedly sleeved on the upper outer wall of the rotating column (4).

4. The high-efficiency stirring and automatic sampling device for a liquid preparation tank according to claim 3, characterized in that: The liquid extraction assembly (3) includes a short tube (31) fixedly installed on the upper end of the rotating column (4) and connected to the internal channel (5). The end of the short tube (31) away from the rotating column (4) is connected to a connecting bend (33).

5. The high-efficiency stirring and automatic sampling device for a liquid preparation tank according to claim 4, characterized in that: The end of the connecting bend (33) away from the short pipe (31) is connected to a water pump (34). The water pump (34) is fixedly installed on the tank (1). The outlet end of the water pump (34) is connected to an outlet pipe (35). The outlet end of the outlet pipe (35) is set to correspond to the sampling bucket (7).

6. The high-efficiency stirring and automatic sampling device for a liquid preparation tank according to claim 5, characterized in that: The short pipe (31) and the connecting bend (33) are connected by a rotary joint (32). The fixed end of the rotary joint (32) is sealed to the connecting bend (33), and the rotating end of the rotary joint (32) is sealed to the short pipe (31).

7. The high-efficiency stirring and automatic sampling device for a liquid preparation tank according to claim 1, characterized in that: The multiple liquid collection tubes (36) are all inclined downwards, and the liquid inlet of the liquid collection tube (36) is located at the end away from the rotating column (4).

8. The high-efficiency stirring and automatic sampling device for a liquid mixing tank according to claim 1, characterized in that: The bottom of the tank (1) is fixedly equipped with multiple support legs (6) for support, and the upper end of the tank (1) is provided with a feed port for adding liquid.

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