High-viscosity material dispersion stirring paddle, stirrer and emulsifying kettle
By designing a high-viscosity material dispersion stirring paddle and using a stirring paddle with a specific structure to form complex flow, the problem of uneven mixing of high-viscosity water-based resins was solved, and the effect of uniform particle size distribution was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 广东金宝力化工科技装备股份有限公司
- Filing Date
- 2025-06-03
- Publication Date
- 2026-05-26
AI Technical Summary
Existing stirring devices cannot effectively stir water-based resins with high viscosity and rapid viscosity changes, resulting in uneven particle size distribution of the product.
Design a high-viscosity material dispersion stirring paddle, including a first stirring paddle and a second stirring paddle. The first blade group is arranged in three layers with staggered spacing and the second blade is arranged in an inclined and cross manner to form axial flow and radial flow, so as to ensure that the material forms a complex flow in the reactor and avoid dead zone areas.
It achieves all-round uniform mixing of materials in the reactor, eliminates dead zones, improves the uniformity of particle size distribution of water-based resin, and meets the needs of large-capacity production.
Smart Images
Figure CN224270900U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical equipment, and in particular to a high-viscosity material dispersion mixing paddle, agitator and emulsification tank. Background Technology
[0002] In the existing technology, during the production of waterborne resins, the viscosity of the resin increases dramatically during the phase transition from oily to waterborne, typically reaching around 1,000,000-2,000,000 CPS. The process requires uniform stirring of the material in the reactor at this viscosity to achieve a uniform particle size distribution in the final product. However, the existing traditional stirring devices (such as folding blades, propellers, and disc turbines) are not suitable for stirring materials with such ultra-high viscosity and rapid viscosity changes, and therefore cannot achieve a uniform particle size distribution. Therefore, there is an urgent need for an automatic stirring device capable of mass production of waterborne resins to solve these problems. Utility Model Content
[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, a first aspect of this invention provides a high-viscosity material dispersion mixing impeller, comprising a first mixing impeller and a second mixing impeller. The first mixing impeller includes a horizontal connecting rod, a first blade group, and a second blade group. The first blade group and the second blade group are respectively fixedly installed at both ends of the horizontal connecting rod. The second mixing impeller includes a vertical connecting rod and a second blade. The vertical connecting rod is vertically fixedly installed on the horizontal connecting rod, and the second blade is mounted on the vertical connecting rod, located between the first blade group and the second blade group.
[0004] According to some embodiments of the present invention, the first stirring paddle is made of three groups, the three groups of first blades are arranged in layers from top to bottom, and the three groups of first blades are staggered with each other, so that the three groups of first blades on the left and right sides are arranged in a stepped manner.
[0005] According to some embodiments of the present invention, the first blade group includes at least two first blades, which are arranged in layers.
[0006] According to some embodiments of the present invention, the first blade is fixedly installed at an angle, and the first blade located at the left end of the horizontal connecting rod and the first blade located at the right end of the horizontal connecting rod are arranged in an X-shape.
[0007] According to some embodiments of the present invention, a mounting plate is welded to one end of the horizontal connecting rod, the mounting plate is inclined, the first blade group is welded to the blade plate, and the blade plate is fixedly installed on the mounting plate, so that the first blade group is inclined.
[0008] According to some embodiments of the present invention, the first blade assembly is welded to the blade plate, and the mounting plate has an elongated hole that is opened longitudinally. A connecting bolt is installed in the elongated hole and the connecting bolt is connected to the blade plate.
[0009] According to some embodiments of the present invention, the second stirring paddle is made of two sets, each set of the second stirring paddle includes at least one second blade, and both second blades are installed at an angle and fixedly, so that the first second blade and the second second blade are arranged in an X-shape.
[0010] According to some embodiments of the present invention, each group of second stirring paddles includes two second blades, which are obliquely welded to the end of the vertical connecting rod.
[0011] The first aspect of this utility model has at least the following beneficial effects:
[0012] 1. First, the first and second agitators are used to form an axial flow, causing the material to flow downwards to the bottom and then tumble upwards, forming an up-and-down circulating flow, which achieves better and more uniform mixing. Second, the first agitator includes a horizontal connecting rod and a first blade group. The first blade group is fixedly installed at both ends of the horizontal connecting rod, so that a blank area without stirring is formed between the two sets of first blade groups. The second agitator includes a vertical connecting rod and a second blade. The vertical connecting rod is fixedly installed on the horizontal connecting rod, and the second blade is installed on the vertical connecting rod. The second blade is located between the two sets of first blade groups, so that the material in the blank area without stirring is actively and effectively stirred, further improving the uniformity of the mixed material.
[0013] 2. The first stirring paddle is arranged in three groups in layers, and the three groups of first blades are staggered with each other, so that the three groups of first blades on the left and right sides are arranged in a stepped manner, and the three groups of first blades are spiral-shaped, so that the material at the bottom is gradually turned to the surface, increasing the convection between viscous materials and achieving a better and more uniform mixing effect.
[0014] 3. The first blades at both ends of the horizontal connecting rod are arranged in an X-shape, and the two second blades in the two sets of second stirring paddles are also arranged in an X-shape, so that the material is continuously turned over and stirred, improving the mixing effect.
[0015] A second aspect of this utility model provides a stirrer, including a drive shaft and a stirring frame, the stirring frame being mounted on the drive shaft, and further including the aforementioned high-viscosity material dispersion stirring paddle, the first stirring paddle being located inside the stirring frame, the horizontal connecting rod being fixed to the drive shaft, such that two sets of first blade groups are arranged on the left and right sides of the drive shaft, and the second blade is located between the first blade groups and the drive shaft.
[0016] The second aspect of the present invention has at least the following beneficial effects:
[0017] The first and second stirring paddles form an axial flow, while the stirring frame forms a radial flow, resulting in a complex material flow pattern inside the vessel. The material in each small area is actively and effectively stirred, and there are no passively stirred areas or dead zones without stirring.
[0018] A third aspect of this invention provides an emulsifying vessel including the aforementioned stirrer.
[0019] The third aspect of this utility model has at least the following beneficial effects:
[0020] The first and second stirring paddles form an axial flow, while the stirring frame forms a radial flow, resulting in a complex material flow pattern inside the reactor. The material in each small area is actively and effectively stirred, eliminating passively stirred areas and dead zones. As a result, the emulsified waterborne resin has a good particle size distribution range, meeting the needs of large-capacity waterborne resin production.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is a schematic diagram showing the usage state of the high-viscosity material dispersion stirring paddle according to an embodiment of the present invention;
[0024] Figure 2 This is a schematic diagram of a first combination of the first stirring paddle and the second stirring paddle in an embodiment of the present utility model;
[0025] Figure 3 This is a schematic diagram of a second combination of the first and second stirring paddles according to an embodiment of the present invention;
[0026] Figure 4This is a three-dimensional schematic diagram of the high-viscosity material dispersion stirring paddle in use according to an embodiment of the present invention;
[0027] Figure 5 This is a side view of the high-viscosity material dispersion stirring paddle according to an embodiment of the present invention;
[0028] Figure 6 This is a schematic diagram of the stirrer and emulsifying tank according to an embodiment of the present invention. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0030] In the description of this utility model, "more than" means two or more, and "greater than," "less than," "exceeding," etc., are understood to exclude the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or their sequential relationship.
[0031] Please refer to Figures 1 to 3 As shown, this utility model relates to the design of a high-viscosity material dispersion mixing paddle, which consists of a first mixing paddle 100 and a second mixing paddle 200. The first mixing paddle 100 includes a horizontal connecting rod 110 and a first blade assembly 120. Two sets of first blade assemblies 120 are fixedly installed at both ends of the horizontal connecting rod 110. The second mixing paddle 200 consists of a vertical connecting rod 210 and a second blade 220. The vertical connecting rod 210 is vertically fixedly installed on the horizontal connecting rod 110, while the second blade 220 is installed on the vertical connecting rod 210 and located between the two sets of first blade assemblies 120.
[0032] When a stirrer rotates, it transfers mechanical energy to the fluid, causing the fluid to circulate. This circulation path is called the flow pattern, and there are three common basic flow patterns:
[0033] Radial flow: The fluid flows perpendicular to the stirring shaft and flows radially. When it encounters the container wall, it splits into two streams, one upward and one downward, before returning to the impeller shaft without passing through the blades, forming two circulating flows, one upward and one downward.
[0034] Axial flow is a flow direction parallel to the stirring shaft. The fluid is propelled downwards by the impeller, then flips up again upon encountering the bottom of the container, forming an up-and-down circulating flow.
[0035] Tangential flow is a flow pattern in which fluid rotates around an axis in a container without baffles. When the flow velocity is high, vortices will form on the liquid surface.
[0036] The three types of flow mentioned above usually coexist. Among them, axial flow and radial flow play the main role in mixing, while tangential flow should be suppressed. Using baffles can weaken tangential flow and enhance axial and radial flow, thereby improving mixing efficiency.
[0037] The first stirring blade 100 and the second stirring blade 200 work together to generate axial flow, allowing the material to tumble upwards after reaching the bottom, forming an upward and downward circulating flow, thereby achieving a better mixing and uniformity effect. In addition, the second blade 220 is located between the first blade group 120 and the second blade 220, ensuring that the material in each small area is actively and effectively stirred, further improving the uniformity of the mixed material.
[0038] according to Figure 1 and Figure 3 Referring to the above, in this embodiment, the first stirring paddle 100 employs three sets of first blade groups 120. These three sets of blades are arranged in layers from top to bottom and are staggered, so that the three sets of first blade groups 120 on the left and right sides are arranged in a stepped manner, forming a spiral structure. This design allows the material at the bottom to gradually turn over to the surface, increasing convection between viscous materials, thereby further improving the mixing uniformity.
[0039] like Figure 2 and Figure 3 As shown, if the first blade group 120 only includes one first blade 121, only part of the material in the area where the first blade group 120 is located can be actively stirred, while the remaining material can only be passively stirred under the action of other materials, which affects the stirring effect to a certain extent.
[0040] To ensure that all materials in the area of the first blade group 120 are actively stirred, the first blade group 120 in this design includes at least two first blades 121, which are arranged in layers to achieve a more comprehensive stirring effect.
[0041] like Figure 5 As shown, to achieve sufficient vertical agitation of the material, the first impeller 121 is installed at an angle. The first impeller 121 located at the left end of the horizontal connecting rod 110 and the first impeller 121 located at the right end of the horizontal connecting rod 110 are arranged in an X-shape. In this way, when the multiple sets of first stirring impellers 100 rotate, they can continuously agitate the material downwards, ensuring that all the material can flow downwards sufficiently and then turn upwards after touching the bottom, thereby ensuring a uniform mixing effect.
[0042] like Figure 2As shown, to facilitate the installation of the first blade assembly 120, a mounting plate 130 is welded to one end of the horizontal connecting rod 110, and the mounting plate 130 is inclined. The first blade assembly 120 is welded to the blade plate 140, and the blade plate 140 is fixedly installed on the mounting plate 130, so that the first blade assembly 120 is inclined.
[0043] like Figure 3 As shown, to facilitate the adjustment of the height of the first blade 121, the first blade assembly 120 is welded to the blade plate 140. The mounting plate 130 has an elongated hole 131, which is opened longitudinally. A connecting bolt is inserted into the elongated hole 131, and the connecting bolt is connected to the blade plate 140.
[0044] To further explain, the first blade group 120 consists of two groups. Both the upper and lower parts of the mounting plate 130 have elongated holes 131. The first blade group 120 is installed in the upper elongated hole 131 by connecting bolts, and the second blade group 120 is installed in the lower elongated hole 131 by connecting bolts.
[0045] During adjustment, loosen the two connecting bolts to reduce or increase the distance between the two sets of first blade groups 120. After adjusting to the preset position, tighten the two connecting bolts to fix the position of the two sets of first blade groups 120.
[0046] Alternatively, loosen one of the connecting bolts, adjust the position of the corresponding first blade group 120, and tighten the connecting bolt after adjustment.
[0047] like Figure 5 As shown, the second stirring paddle 200 is made up of two sets. Each set of the second stirring paddle 200 includes at least one second blade 220. Both second blades 220 are installed at an angle, so that the first second blade 220 and the second second blade 220 are arranged in an X-shape. This allows the material to be continuously stirred downwards when the second stirring paddle 200 is rotating, ensuring that all the material can flow downwards fully and then turn upwards after touching the bottom, thus ensuring a uniform mixing effect.
[0048] In addition, the second blade 220 is located between the two sets of first blades 120, which ensures that the material in each small area is actively and effectively stirred, further improving the uniformity of the mixed material.
[0049] In this embodiment, each set of second stirring paddles 200 includes two second blades 220, which are obliquely welded to the end of the vertical connecting rod 210.
[0050] like Figure 6As shown, this utility model also relates to a stirrer, including a drive shaft 300 and a stirring frame 400, the stirring frame 400 being mounted on the drive shaft 300, and also including the aforementioned high-viscosity material dispersion stirring paddle. A first stirring paddle 100 is located inside the stirring frame 400, and a horizontal connecting rod 110 is fixed to the drive shaft 300, such that two sets of first blade groups 120 are arranged on the left and right sides of the drive shaft 300, and a second blade 220 is located between the first blade groups 120 and the drive shaft 300.
[0051] The first stirring paddle 100 and the second stirring paddle 200 form an axial flow, and the stirring frame 400 forms a radial flow, resulting in a complex material flow direction inside the vessel. The material in each small area is actively and effectively stirred, and there are no passively stirred areas or dead zones without stirring.
[0052] The horizontal connecting rod 110 is divided into two sub-horizontal rods. The first blade group 120 is fixedly installed at one end of the two sub-horizontal rods, and a clamp is welded to the other end. The drive shaft 300 is clamped and fixed by the clamp, and the two sub-horizontal rods are connected to each other.
[0053] Meanwhile, the vertical connecting rod 210 is also divided into two sub-vertical rods. One end of each sub-vertical rod is welded with a clamp, which holds and fixes the horizontal connecting rod 110 and connects the two sub-vertical rods to each other.
[0054] Meanwhile, the rotation speed of the agitator is calculated to meet the requirements of uniform emulsification without causing "demulsification," thus ensuring product quality. At the same time, the flow pattern in each area of the agitator is consistent, resulting in a good particle size distribution range for the final emulsified waterborne resin.
[0055] like Figure 6 As shown, this utility model also relates to an emulsification kettle, including the above-mentioned stirrer. Raw materials are put into the kettle body, and a motor is run. The output end of the motor rotates the drive shaft 300, which drives the first stirring paddle 100, the second stirring paddle 200, and the stirring frame 400 to rotate together.
[0056] The first stirring paddle 100 and the second stirring paddle 200 form an axial flow, and the stirring frame 400 forms a radial flow, resulting in a complex material flow direction inside the vessel. The material in each small area is actively and effectively stirred, and there are no passively stirred areas or dead zones without stirring. Finally, the emulsified waterborne resin has a good particle size distribution range, which meets the needs of large-capacity waterborne resin production.
[0057] Because the material has a very high viscosity, if there is any accumulation of material, it will hinder the transfer of temperature from the external cooling water to the inside, and the material on the cylinder wall will easily increase in viscosity due to the low temperature, thus failing to mix well with the water. Therefore, the stirring frame 400 and the first stirring paddle 100 are close to the vessel body. During the stirring process, the material on the vessel wall is scraped off during the upward and downward convection of the material, preventing the material from sticking to the vessel wall. At the same time, it also has a local convection and tumbling effect, which allows heat to be transferred from the inside to the outside.
[0058] In the description of this specification, references to terms such as "some embodiments" or "as one might imagine" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one embodiment or example.
[0059] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A high viscosity material dispersing impeller characterized by, include: The first stirring paddle (100) includes a horizontal connecting rod (110) and a first blade group (120), with the first blade group (120) fixedly installed at both ends of the horizontal connecting rod (110). The second stirring paddle (200) includes a vertical connecting rod (210) and a second blade (220). The vertical connecting rod (210) is vertically fixed on the horizontal connecting rod (110), and the second blade (220) is mounted on the vertical connecting rod (210). The second blade (220) is located between two sets of the first blade sets (120).
2. The high viscosity material dispersion impeller of claim 1, wherein, The first stirring paddle (100) is made of three sets, and the three sets of first blade groups (120) are arranged in layers from top to bottom, and the three sets of first blade groups (120) are staggered with each other, so that the three sets of first blade groups (120) located on the left and right sides are arranged in a stepped manner.
3. A high viscosity material disperser impeller according to claim 1 or 2, characterised in that, The first blade group (120) includes at least two first blades (121), which are arranged in layers.
4. The high viscosity material dispersion impeller of claim 3, wherein, The first blade (121) is fixedly installed at an angle, and the first blade (121) located at the left end of the horizontal connecting rod (110) and the first blade (121) located at the right end of the horizontal connecting rod (110) are arranged in an X-shape.
5. The high-viscosity material dispersion mixing paddle according to claim 1, characterized in that, One end of the horizontal connecting rod (110) is welded with a mounting plate (130), the mounting plate (130) is inclined, the first blade group (120) is welded to the blade plate (140), the blade plate (140) is fixedly installed on the mounting plate (130), so that the first blade group (120) is inclined.
6. The high viscosity material dispersion impeller of claim 5, wherein, The mounting plate (130) has an elongated hole (131) which is opened longitudinally. A connecting bolt is installed in the elongated hole (131) and is connected to the blade plate (140).
7. The high viscosity material dispersion impeller of claim 1 wherein, The second stirring paddle (200) is in two sets. Each set of the second stirring paddle (200) includes at least one second blade (220). Both second blades (220) are installed at an angle. The second blades (220) in the first set of the second stirring paddle (200) are arranged in an X-shape with the second blades (220) in the second stirring paddle (200) in the first set of the second stirring paddle (200).
8. The high viscosity material dispersion impeller of claim 7, wherein, Each set of the second stirring paddles (200) includes two second blades (220), which are obliquely welded to the end of the vertical connecting rod (210).
9. A stirrer comprising a drive shaft (300), a stirring frame (400) mounted on the drive shaft (300), characterized in that It also includes a high-viscosity material dispersion mixing paddle as described in any one of claims 1 to 8, wherein the first mixing paddle (100) and the second mixing paddle (200) are located inside the mixing frame (400), the horizontal connecting rod (110) is fixed on the drive shaft (300), and the two sets of the first blade groups (120) are arranged on the left and right sides of the drive shaft (300), and the second blade (220) is located between the first blade group (120) and the drive shaft (300).
10. An emulsification kettle characterized by, The stirrer of claim 9, the two sets of the first blade set (120) being close to the kettle wall.