A water phase kettle with high stirring efficiency

Abstract

The utility model relates to water phase pot technical field, specifically disclose a high stirring efficiency's water phase pot, including water phase pot main part, main stirring shaft, vertical setting in the center position of water phase pot main part, vice stirring shaft, vertical setting in the eccentric position of water phase pot main part, multistage variable cross section shearing paddle, install in main stirring shaft, including multilayer along the shearing disc of main stirring shaft axial arrangement and multiple installation in the shearing blade of shearing disc edge, multilayer shearing disc's shearing blade cross section gradually increases from top to bottom, circulating stirring paddle, install in vice stirring shaft, including multiple along the blade of vice stirring shaft axial arrangement is in the shape of inclination, flow guide cylinder, encircle main stirring shaft, lower edge is located below multistage variable cross section shearing paddle, and the annular region is formed between the outer wall of flow guide cylinder and water phase pot main part inner wall, and vice stirring shaft is located in annular region. The water phase pot stirring efficiency is high, and the mixing uniformity is good, and the adaptability is strong, satisfies modern industry to the demand of high -efficient, energy -conserving, high -quality production.

Description

Technical Field

[0001] This utility model relates to the field of aqueous phase pot technology, and specifically discloses an aqueous phase pot with high stirring efficiency. Background Technology

[0002] In industries such as chemical, pharmaceutical, and food processing, aqueous phase reactors are key equipment used in processes such as mixing, dissolving, and reacting. Their core function relies on a stirring system, which uses the rotation of the stirrer to achieve uniform mixing of materials, accelerate heat and mass transfer, thereby ensuring product quality and production efficiency.

[0003] However, existing aqueous phase reactors generally suffer from insufficient stirring force and low mixing efficiency in practical applications. Specifically: First, traditional stirring devices (such as paddle, frame, or anchor stirrers) have relatively simple structural designs, limiting fluid shear force and circulation capacity. This makes it difficult to achieve sufficient and rapid dispersion and homogenization of high-viscosity materials or solid-liquid two-phase systems, easily creating mixing dead zones and leading to uneven material mixing. Second, some aqueous phase reactors have a simple arrangement of stirring shafts and blades, resulting in uneven flow field distribution. The central area experiences strong stirring while the peripheral areas have poor mixing, leading to prolonged overall mixing time and increased energy consumption.

[0004] The aforementioned problems not only reduce production efficiency and extend process cycles, but may also cause batch-to-batch quality differences due to uneven mixing, affecting product consistency. Especially in processes involving complex formulations or requiring high homogeneity, the stirring performance of existing aqueous phase reactors has become a bottleneck restricting the improvement of production efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a water phase pot with high stirring efficiency, good mixing uniformity, and strong adaptability. It overcomes the defects of insufficient stirring force and low efficiency in the prior art, and meets the needs of modern industry for efficient, energy-saving, and high-quality production.

[0006] This utility model is achieved through the following technical solution: A high-efficiency aqueous phase pot includes: Water phase pot body; The main stirring shaft is vertically positioned at the center of the aqueous phase pot body; The auxiliary stirring shaft is vertically positioned eccentrically on the main body of the aqueous phase pot; The multi-stage variable cross-section shear impeller is installed on the main stirring shaft and includes multiple shear discs arranged along the axial direction of the main stirring shaft and multiple shear blades installed on the edge of the shear discs. The cross-section of the shear blades of the multi-stage shear discs gradually increases from top to bottom. A circulating agitator, installed on a secondary agitator shaft, includes multiple inclined blades arranged along the axial direction of the secondary agitator shaft; The guide tube surrounds the main stirring shaft, with its lower edge located below the multi-stage variable cross-section shear impeller. The outer wall of the guide tube forms an annular region with the inner wall of the water phase pot body, and the secondary stirring shaft is located within the annular region.

[0007] Furthermore, multiple shear blades are evenly distributed around the circumference of the shear disk, and the shear blades are perpendicular to the surface of the shear disk.

[0008] Furthermore, the shear blades are trapezoidal or rectangular.

[0009] Furthermore, the lower part of the guide tube is flared, and the top of the guide tube is detachably connected to the cover.

[0010] Furthermore, the main body of the water phase pot includes a pot body and a cover for covering the pot body, and the main stirring shaft and the auxiliary stirring shaft are respectively connected to the cover.

[0011] Furthermore, a drive box is connected to the top of the cover, and a first drive motor and a second drive motor are installed inside the drive box. The output end of the first drive motor is connected to the main stirring shaft through a flange, and the output end of the second drive motor is connected to the auxiliary stirring shaft through a flange.

[0012] Furthermore, a homogenizing motor is installed at the bottom of the water phase pot body, and the output end of the homogenizing motor is connected to the stator and rotor inside the water phase pot body.

[0013] Furthermore, the main body of the water phase boiler is connected to a control cabinet and a tilting mechanism on both sides via rotating shafts.

[0014] The technical solution of this utility model has at least the following advantages and beneficial effects: The main stirring shaft is designed to generate strong shear force in localized areas, rapidly dispersing materials and accelerating dissolution. The secondary stirring shaft is designed to drive the materials through a large-scale, low-shear macroscopic circulation within the vessel, eliminating mixing dead zones. The counter-rotating shafts create a "counter-current flow field," enhancing turbulence intensity and promoting rapid material exchange between different areas.

[0015] The guide tube guides the fluid generated by the high-speed shearing impeller of the main stirring shaft to move upward along the tube wall, forming a stable upward flow. An annular region is formed between the guide tube and the inner wall of the pot. In conjunction with the low-speed stirring impeller of the auxiliary stirring shaft, the material overflowing from the top of the guide tube is driven to flow back downward along the annular region. The upward and downward flows form a closed, efficient, dead-zone-free circulation loop, achieving a perfect combination of macroscopic flow and microscopic shearing, thereby greatly improving the stirring efficiency.

[0016] When the multi-stage variable cross-section shearing paddle rotates at high speed, the edges of the shearing blades generate extremely high linear velocity and velocity gradient, forming a strong shearing zone between the shearing blades and the wall of the guide tube. This results in a gradient distribution of shearing force on materials at different heights, avoiding local overheating or excessive shearing caused by single-intensity shearing. At the same time, it expands the high-shear action area to meet the mixing needs of different liquid levels. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the high-stirring-efficiency aqueous phase pot provided in Embodiment 1 of this utility model; Figure 2 Another structural schematic diagram of the water phase pot with high stirring efficiency provided in Embodiment 1 of this utility model; Figure 3 This is a schematic diagram of the main stirring shaft and the auxiliary stirring shaft provided in Embodiment 1 of this utility model; Figure 4 This is a schematic diagram of the internal structure of the water phase pot with high stirring efficiency provided in Embodiment 1 of this utility model.

[0019] Reference numerals: 1-Water phase pot body, 2-Main stirring shaft, 3-Secondary stirring shaft, 4-Guide cylinder, 5-Drive box, 6-Control cabinet, 7-Tilting mechanism, 8-Lifting mechanism, 11-Pot body, 12-Lid body, 21-Shearing disc, 21a-First-stage shearing disc, 21b-Second-stage shearing disc, 21c-Third-stage shearing disc, 22-Shearing blade, 31-Paddle blade. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0023] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] Example 1 Reference Figures 1-4 This embodiment provides a water phase pot with high stirring efficiency, comprising: Water phase pot body 1; The main stirring shaft 2 is vertically positioned at the center of the water phase pot body 1; The auxiliary stirring shaft 3 is vertically positioned eccentrically on the main body of the aqueous phase pot 1, approximately one-third of the radius from the center of the main body of the aqueous phase pot 1. A multi-stage variable cross-section shear impeller, installed on the main stirring shaft 2, includes multiple shear discs 21 arranged axially along the main stirring shaft 2 and multiple shear blades 22 installed on the edges of the shear discs 21. The cross-section of the shear blades 22 of the multiple shear discs 21 gradually increases from top to bottom; preferably, it is three-stage, including a first-stage shear disc 21a, located at the top layer, with the smallest cross-sectional size of its shear blades 22; a second-stage shear disc 21b, located in the middle layer, with a larger cross-sectional size of its shear blades 22 than the first stage; and a third-stage shear disc 21c, located at the bottom layer, with the largest cross-sectional size of its shear blades 22. First, the gradually increasing cross-section of the shear blades 22 of the shear discs 21 forms a shear force gradient, adapting to the mixing requirements of different liquid levels. Second, it can generate strong shearing, tearing, and impact effects on the material passing through the edges of the shear blades 22, improving the mixing effect. Third, the fluid at the edges of the shear blades 22 can move upward along the wall of the guide tube 4, forming a stable upward flow. The circulating agitator is installed on the auxiliary agitator shaft 3 and includes multiple inclined blades 31 arranged along the axial direction of the auxiliary agitator shaft 3. The blades 31 are inclined downward with an inclination angle of 30°-45°, which can push the material downward, enhance the overall circulation, and prevent it from forming eddies or dead zones in the annular area. The guide tube 4 surrounds the main stirring shaft 2, with its lower edge located below the multi-stage variable cross-section shear impeller. The outer wall of the guide tube 4 forms an annular region with the inner wall of the water phase pot body 1, and the auxiliary stirring shaft 3 is located within the annular region.

[0025] In a preferred embodiment, multiple shear blades 22 are evenly distributed around the circumference of the shear disk 21, and the shear blades 22 are perpendicular to the disk surface of the shear disk 21. The shear disk 21 is horizontally positioned, and the vertical shear blades 22, when rotating, can apply axial thrust to the fluid, "pumping" the bottom material upwards, thus forming a directional upward flow in conjunction with the guide tube 4.

[0026] In a preferred embodiment, the shear blade 22 is trapezoidal or rectangular.

[0027] In a preferred embodiment, the lower part of the guide tube 4 is funnel-shaped, which facilitates the flow of fluid to rise along the wall of the guide tube 4 during the stirring process. The top of the guide tube 4 is detachably connected to the cover 12. Flanges are provided on the top of the guide tube 4 and the bottom of the cover 12. The flanges on the guide tube 4 and the cover 12 are connected by bolts.

[0028] In a preferred embodiment, the water phase pot body 1 includes a pot body 11 and a cover 12 for covering the pot body 11, and the main stirring shaft 2 and the auxiliary stirring shaft 3 are respectively connected to the cover 12.

[0029] In a preferred embodiment, a drive box 5 is connected to the top of the cover 12. A first drive motor and a second drive motor are installed inside the drive box 5. The output end of the first drive motor is connected to the main stirring shaft 2 through a flange, and the output end of the second drive motor is connected to the auxiliary stirring shaft 3 through a flange.

[0030] In a preferred embodiment, a control cabinet 6 and a tilting mechanism 7 are respectively connected to both sides of the water phase pot body 1 via rotating shafts. The control cabinet 6 is connected to the drive box 5 via a lifting mechanism 8. The control cabinet 6 can be electrically connected to the first drive motor and the second drive motor to control the stirring speed of the main stirring shaft 2 and the auxiliary stirring shaft 3.

[0031] In a preferred embodiment, the lifting mechanism 8 is a hydraulic cylinder. The hydraulic cylinder is located inside the control cabinet 6, and the piston end of the hydraulic cylinder passes through the control cabinet 6 and is connected to the bottom of the drive box 5. The lifting mechanism 8 can adjust the height of the drive box 5, thereby adjusting the height of the lid 12, so as to close or open the lid 12 and the pot body 11.

[0032] During operation, the first drive motor drives the main stirring shaft 2 to rotate at high speed. The shearing disc 21 and shearing blades 22 on the main stirring shaft 2 generate strong shearing force, mixing the materials. At the same time, it applies axial thrust to the fluid, "pumping" the material at the bottom upwards, forming a directional upward flow in conjunction with the guide tube 4. The second drive motor drives the auxiliary stirring shaft 3 to rotate at low speed. The blades 31 on the auxiliary stirring shaft 3 drive the material overflowing from the top of the guide tube 4 to flow back downwards along the annular area, forming a directional downward flow. The upward and downward flows form a closed, efficient, dead-zone-free circulation loop, promoting rapid exchange of materials in different areas, improving stirring efficiency, and ensuring good material mixing uniformity.

[0033] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A water phase pot with high stirring efficiency, characterized in that, include: Water phase pot body; The main stirring shaft is vertically positioned at the center of the aqueous phase pot body; The auxiliary stirring shaft is vertically positioned eccentrically on the main body of the aqueous phase pot; The multi-stage variable cross-section shear impeller is installed on the main stirring shaft and includes multiple shear discs arranged along the axial direction of the main stirring shaft and multiple shear blades installed on the edge of the shear discs. The cross-section of the shear blades of the multi-stage shear discs gradually increases from top to bottom. A circulating agitator, installed on a secondary agitator shaft, includes multiple inclined blades arranged along the axial direction of the secondary agitator shaft; The guide tube surrounds the main stirring shaft, with its lower edge located below the multi-stage variable cross-section shear impeller. The outer wall of the guide tube forms an annular region with the inner wall of the water phase pot body, and the secondary stirring shaft is located within the annular region.

2. The high-stirring-efficiency aqueous phase pot according to claim 1, characterized in that, Multiple shear blades are evenly distributed around the circumference of the shear disk, and the shear blades are perpendicular to the surface of the shear disk.

3. The high-stirring-efficiency aqueous phase pot according to claim 1 or 2, characterized in that, The shear blades are trapezoidal or rectangular.

4. The high-stirring-efficiency aqueous phase pot according to claim 1, characterized in that, The lower part of the guide tube is flared, and the top of the guide tube is detachably connected to the cover.

5. The high-stirring-efficiency aqueous phase pot according to claim 1, characterized in that, The main body of the water phase pot includes a pot body and a cover for covering the pot body, and the main stirring shaft and the auxiliary stirring shaft are respectively connected to the cover.

6. The high-stirring-efficiency aqueous phase pot according to claim 5, characterized in that, The top of the cover is connected to a drive box, which contains a first drive motor and a second drive motor. The output end of the first drive motor is connected to the main stirring shaft via a flange, and the output end of the second drive motor is connected to the auxiliary stirring shaft via a flange.

7. The high-stirring-efficiency aqueous phase pot according to claim 6, characterized in that, The main body of the water phase boiler is connected to a control cabinet and a tilting mechanism on both sides via rotating shafts. The control cabinet is connected to the drive box via a lifting mechanism.

8. The high-stirring-efficiency aqueous phase pot according to claim 7, characterized in that, The lifting mechanism is a hydraulic cylinder.

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