Stirring device for preventing high-viscosity polymer from winding stirring shaft

Abstract

The invention relates to the field of equipment manufacturing in the industries of coatings, paints and the like, in particular to a stirring device for preventing a high-viscosity polymer from winding a stirring shaft. The stirring device for preventing the high-viscosity polymer from winding the stirring shaft comprises a stirring container, a stirring assembly and a turbulent flow assembly, the turbulent flow assembly comprises a turbulent flow plate and a turbulent flow plate support used for installing the turbulent flow plate, one end of the turbulent flow plate is of a triangular structure, and the other end of the turbulent flow plate is of a triangular structure. The other end part of the spoiler is provided with an inverted cone structure in an inverted C shape; and at least two flow guide holes are formed in the triangular end part of the spoiler. According to the stirring device, the high-viscosity polymer and the solution can be guided to be rapidly mixed under the shearing force action of the stirring assembly through the turbulent flow assembly, so that the high-viscosity polymer can be effectively prevented from being in contact with the stirring shaft, and the phenomenon that the stirring shaft is wound by the high-viscosity polymer is avoided.

Description

Technical Field

[0001] The invention relates to the field of equipment manufacturing in coating, paint and other industries, and in particular to a stirring device for preventing a high-viscosity polymer from winding around a stirring shaft. Background Art

[0002] As people's living standards gradually improve, coatings and paints are widely used as decorations in various industries, and the formulation development experiments and production of coatings and paints are inseparable from stirring. According to the formulation design process requirements, coatings and paints usually contain high-viscosity polymers (resins or additives, etc.). Therefore, multiple raw materials need to be added at a certain stirring speed.

[0003] In the prior art, there are two types of mixing equipment for coating and paint production: one is to use a fixed lifting mixer to mix in a moving mixing container; the other is to fix the mixing container and the mixer on an operating platform for mixing. Both of the above mixing equipment use a motor to drive a stirring paddle or a stirring disk to generate shear force to form flow. After reaching a certain speed, the solution will form a vortex centered on the stirring shaft.

[0004] When high viscosity polymer is put into, because it has the characteristics of high molecular weight, large cohesive force, can not be quickly dissolved and dispersed (especially when the temperature is low in winter), the high viscosity polymer will float on the surface of the solution vortex laminar flow. Along with the flow of solution, the high viscosity polymer will be wound from bottom to top along the stirring shaft and climb rapidly (commonly known as climbing pole) because of adhesion and winding when it contacts the stirring shaft, and the centrifugal force of the stirring shaft will cause the phenomenon of throwing and spilling, and then cause the amount of the added material to be inaccurate and material loss, directly affect product quality, reduce production efficiency, and cause safety accidents in serious cases. On the other hand, in operation, it is also necessary to shut down and clean up the environmental pollution caused by the phenomenon of throwing and spilling immediately. Therefore, this further reduces production efficiency, does not meet the process requirements when formula design, and causes unstable product quality and waste of materials.

[0005] In order to solve the above technical problems, a spoiler device is provided on the stirring device in the prior art. However, the structure and shape of the spoiler device in the prior art have defects to varying degrees, so that the high-viscosity polymer cannot be quickly mixed into the solution.

[0006] In view of this, it is urgent to design a convenient and simple stirring device to prevent high-viscosity polymers from winding around the stirring shaft for mass production of coatings and paints and laboratory use to solve the following technical problems:

[0007] (1) A device for interfering with the laminar flow direction of the solution surface is provided to effectively prevent the high-viscosity polymer (resin or additive) from contacting the stirring shaft when a high-viscosity polymer (resin or additive) is added;

[0008] (2) Solve the problem of how to quickly mix high-viscosity polymers (resins or additives) with solutions without affecting normal feeding operations;

[0009] (3) Solve the problems of adjustment, installation and fixation of spoiler devices. Summary of the invention

[0010] In view of the above-mentioned shortcomings of the prior art, the present invention provides a stirring device for preventing high-viscosity polymers from winding around a stirring shaft, as described in detail below.

[0011] A stirring device for preventing a high-viscosity polymer from winding around a stirring shaft, comprising a stirring container, a stirring component and a spoiler component, wherein the spoiler component comprises a spoiler and a spoiler bracket for mounting the spoiler, wherein one end of the spoiler has a triangular configuration, and the other end of the spoiler has an inverted C-shaped inverted cone configuration; wherein at least two guide holes are provided on the end of the spoiler having a triangular configuration.

[0012] Furthermore, the stirring container includes a stirring tank or a stirring kettle.

[0013] Furthermore, the spoiler, when unfolded, has an irregular pentagonal configuration with one end protruding.

[0014] Furthermore, the end of the spoiler with a triangular configuration is in an isosceles triangle configuration. Preferably, the end of the spoiler with a triangular configuration is in an isosceles right triangle configuration.

[0015] Further, the end of the spoiler having the inverted C-shaped inverted cone configuration is an inverted C-shaped inverted cone with an opening angle of 180-240°. The opening angle is the central angle corresponding to the arc of the inverted C-shaped inverted cone.

[0016] Furthermore, the guide hole is arranged on the longest side of the end portion of the triangular configuration.

[0017] Further, the diversion hole is a circular, triangular or quadrilateral diversion hole. Preferably, the diversion hole is a circular diversion hole with a diameter of 2-10 cm.

[0018] Furthermore, the number of the guide holes is at least four, and the guide holes are arranged in a straight line at the end of the spoiler. Preferably, the number of the guide holes is four.

[0019] Furthermore, the spacing between the guide holes is 2-10 cm.

[0020] Furthermore, the stirring device also includes a fixing component with adjustable height, the fixing component includes a fixed bracket outer column, a fixed bracket inner column and a plurality of fixing nuts and bolts; the fixed bracket outer column is fixed to the outer wall of the stirring container by fixing nuts and bolts, one end of the fixed bracket inner column is fixedly connected to the upper end of the fixed bracket outer column in an inverted L-shaped configuration, the other end of the fixed bracket inner column passes through the top of the stirring container and enters the interior of the stirring container, and the spoiler bracket is vertically fixedly connected to the fixed bracket inner column.

[0021] Preferably, the number of the fixing nuts and bolts is 2 to 4. More preferably, the number of the fixing nuts and bolts is 2.

[0022] The beneficial effects of the present invention are as follows:

[0023] The stirring device described in the present application has a spoiler of a specific configuration, and a guide hole is provided on the spoiler. During the stirring process, the solution therein forms a vortex, and the laminar flow on the vortex surface is introduced into the inside of the inverted cone in the shape of an inverted C by the resistance of the spoiler, and a small vortex is formed. When a high-viscosity polymer is put into the laminar flow surface of the solution, the high-viscosity polymer floating on the surface of the solution is introduced into the vortex formed in the inverted cone in the shape of an inverted C, and then introduced into the inside of the solution. At the same time, the solution passes through the guide hole on the side of the spoiler under the continuous flow. Therefore, the high-viscosity polymer put into the solution is quickly mixed under the shear force of the stirring paddle, avoiding contact with the stirring shaft and the phenomenon of winding and throwing, thereby improving production efficiency and product quality, reducing material waste, and preventing the occurrence of safety accidents.

[0024] After installing the device, the feeding operation of high-viscosity polymers (resins or additives) can be completed without stopping the machine, which improves product quality stability and reduces material waste, prevents the occurrence of safety accidents, and effectively improves work efficiency.

[0025] In addition, the height-adjustable fixing assembly facilitates quick installation and height adjustment of the spoiler assembly, allowing high-viscosity polymers to be mixed into the solution more quickly.

[0026] The stirring device includes a liftable fixed bracket. When the coating or paint liquid level in the stirring container rises with the addition of raw materials, the stirring device can also be manually adjusted in height to facilitate the normal addition of high-viscosity polymers (resins or additives).

[0027] Finally, after the stirring device is installed, it becomes part of the production equipment and does not need to be disassembled during feeding. It has no effect on the feeding of high-viscosity polymers (resins or additives) or other raw materials, and can also prevent trace raw materials in the formula from contaminating the stirring shaft or the wall of the stirring container, resulting in inaccurate addition. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the stirring device described in this application;

[0029] Figure 2 for Figure 1 A zoomed-in view of the center spoiler;

[0030] Figure 3 for Figure 2 Expanded view of the middle spoiler;

[0031] Figure 4 is a schematic structural diagram of a spoiler having triangular guide holes;

[0032] Figure 5 It is a schematic diagram of the structure of a spoiler with quadrilateral guide holes.

[0033] Figure 6 Schematic diagram of the structure of the spoiler in Comparative Example 1.

[0034] Figure 7 Schematic diagram of the structure of the spoiler in Comparative Example 2.

[0035] Figure 8 Schematic diagram of the structure of the spoiler in Comparative Example 3.

[0036] The reference numerals in the figures are described as follows:

[0037] 1. Stirring motor; 2. Feeding port; 3. Stirring shaft; 4. Flow direction of coating solution; 5. Stirring paddle; 6. Stirring container; 7. Fixed bracket outer column; 8. Fixed bracket inner column; 9. First fixing nut and bolt; 10. Spoiler; 11. Guide hole; 12. Second fixing nut and bolt; 13. Spoiler bracket; 14. Inverted C-shaped cone; 15. Stirring assembly; 16. Spoiler assembly; 17. Fixed assembly; 18. Discharge port with valve; 19. Expanded surface of inverted C-shaped cone; 20. Opening angle in inverted C-shaped cone; 21. U-shaped inverted pyramid. DETAILED DESCRIPTION

[0038] In order to explain the present invention more clearly, the present invention is further described below in conjunction with specific embodiments. It should be understood by those skilled in the art that the content described below is illustrative rather than restrictive, and should not be used to limit the scope of protection of the present invention.

[0039] Example spoiler

[0040] See also Figure 2-5 , which shows a specific embodiment of the spoiler in the stirring device of the present application. Figure 3 As shown, it is Figure 2 Expanded view of the center spoiler.

[0041] like Figure 2-3 As shown, the spoiler (10) is formed by bending a pentagonal stainless steel plate, so when it is unfolded, it has an irregular pentagonal configuration with one end protruding.

[0042] The five sides are a, b, c, d, and e, respectively, the diagonal is set to f, and the length of the side is e>a=f>d>b>c.

[0043] The length of the side a of the spoiler (10) is consistent with the length of the spoiler bracket (13), and the spoiler bracket is welded to the bottom of the spoiler bracket.

[0044] Among them, the triangle with a, f, and e as sides is an isosceles right triangle.

[0045] The b, c, d sides of the irregular pentagon are bent starting from the diagonal line f, and after bending, they are formed into an inverted C-shaped inverted cone (14) with an opening angle of 180-240 degrees. The opening angle (20) is the central angle of the arc of the inverted C-shaped inverted cone.

[0046] The guide holes (11) are arranged on the longest side e of the triangle formed by sides a, f, and e. The guide holes are circular, four in number, and have a diameter of 2-10 cm. The distance between each guide hole is 2-10 cm. Furthermore, the guide holes (11) are arranged in a straight line at the end of the spoiler. During the stirring process, at least one guide hole is completely immersed in the solution. More preferably, all guide holes are completely immersed in the solution.

[0047] like Figure 4 As shown, the spoiler (10) shown is Figure 2-3 However, the guide holes (11) shown therein are triangular, each side of which is 2-10 cm long, and the distance between the guide holes is 2-10 cm.

[0048] Likewise, if Figure 5 As shown, the guide holes (11) shown can also be quadrilateral, with a side length of 2-10 cm, and a distance between the guide holes of 2-10 cm.

[0049] Example 1

[0050] See also Figure 1-5, which shows the stirring device of the present application.

[0051] like Figure 1 As shown, a stirring device for preventing a high-viscosity polymer from winding around a stirring shaft is shown, which includes a stirring container (6), a fixing component (17), a spoiler component (16) and a stirring component (15).

[0052] The stirring container (6) is a cylindrical container with a feeding port (2) at the top and a discharge port (18) with a valve at the center of the bottom.

[0053] The fixing assembly (17) comprises a fixing bracket outer column (7), a fixing bracket inner column (8), a first fixing nut bolt (9) and a second fixing nut bolt (12); the fixing bracket outer column (7) is fixed to the outer wall of the stirring container (6) by means of the first fixing nut bolt (9) and the second fixing nut bolt (12); one end of the fixing bracket inner column (8) is fixedly connected to the upper end of the fixing bracket outer column (7) in an inverted L-shaped configuration; the other end of the fixing bracket inner column (8) passes through the top of the stirring container (6) and enters the interior of the stirring container (6); the fixing assembly (17) can be adjusted in height according to the different positions of the first fixing nut bolt (9) and the second fixing nut bolt (12).

[0054] The fixed support outer column (7) and the fixed support inner column (8) are composed of two solid stainless steel rectangular plates, and the distance between them depends on the wall thickness of the paint stirring container.

[0055] The spoiler assembly (16) comprises a spoiler (10) and a spoiler bracket (13).

[0056] One end of the spoiler (10) has a triangular configuration, and the other end of the spoiler (10) has a reverse C-shaped inverted cone (14) configuration; four guide holes (11) are provided on the end of the spoiler with a triangular configuration. The specific configuration of the spoiler (10) refers to the above embodiment.

[0057] The spoiler bracket (13) is specifically a rectangular stainless steel tube, which is vertically fixedly connected to the inner column (8) of the fixed bracket at 90 degrees; the length of the spoiler bracket (13) is 70-80% of the radius length of the stirring container (6).

[0058] The stirring assembly (15) comprises a stirring motor (1), a stirring shaft (3) and a stirring paddle (5); the stirring motor (1) is fixedly connected to the top of the stirring container (6); one end of the stirring shaft (3) passes through the top of the stirring container (6) and is fixedly connected to the stirring motor (1); the other end of the stirring shaft (3) is fixedly connected to the stirring paddle (5); the flow direction (4) of the coating solution generated by the stirring of the stirring paddle (5) is consistent with the bending direction of the inverted C-shaped cone (14).

[0059] After the stirring device is started, the stirring motor (1) drives the stirring paddle (5) to rotate in the bending direction of the inverted C-shaped inverted cone (14) through the stirring shaft (3). The flow direction (4) of the coating solution generated by the stirring is kept in the same direction as the bending direction of the inverted C-shaped inverted cone (14), so that the solution forms a vortex. The spoiler component (16) introduces the laminar flow on the vortex surface into the inverted C-shaped inverted cone (14) through the resistance of the spoiler (10), thereby forming a small vortex again.

[0060] When a high-viscosity polymer is added, the high-viscosity polymer floating on the surface of the solution laminar flow is introduced into the vortex in the reverse C-shaped inverted cone (14), and then introduced into the interior of the solution. At the same time, the solution passes through the guide hole (11) on the side of the spoiler while continuing to flow. Finally, the high-viscosity polymer and the solution are quickly mixed under the shear force of the stirring paddle (5), thereby avoiding the phenomenon of entanglement and spillage caused by contact with the stirring shaft (3).

[0061] Comparative Example 1

[0062] like Figure 6 As shown, the difference between Comparative Example 1 and Example 1 is that the isosceles right triangle with sides a, f, and e in the spoiler (10) is changed into a quadrilateral, and 11 (or more) circular guide holes are distributed on it.

[0063] In contrast to the present application, since the area of ​​the quadrilateral end is too large and the number of guide holes is too large, the solution cannot form a complete vortex and is prone to splashing.

[0064] Comparative Example 2

[0065] like Figure 7 As shown, the difference between Comparative Example 2 and Example 1 is that the number of guide holes (11) is increased to 7 (or more).

[0066] In contrast to the present application, an increase in the number of guide holes will result in a large amount of solution being guided, thereby failing to form a vortex inside the reverse C-shaped inverted cone.

[0067] When a high viscosity polymer is added, it cannot be quickly mixed with the solution because there is no drag from the fluid inside the vortex. Therefore, it will adhere to the spoiler or float on the surface of the laminar flow, which will still cause the phenomenon of winding around the stirring shaft.

[0068] Comparative Example 3

[0069] like Figure 8 As shown, the difference between comparative example 3 and example 1 is that the b, c, d sides of the spoiler (10) are folded at right angles (not arcs) into a U-shaped inverted pyramid configuration. The inverted C-shaped inverted pyramid shown in the present application is not shown.

[0070] In contrast to the present application, the turbulent solution cannot form a complete vortex after entering the U-shaped inverted pyramid, so it is impossible to quickly mix the high-viscosity polymer (resin or additive) with the solution.

[0071] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the protection scope of the present invention.

Claims

1. A stirring device for preventing a high-viscosity polymer from winding around a stirring shaft, comprising a stirring container (6), a stirring assembly (15) and a spoiler assembly (16), wherein the spoiler assembly (16) comprises a spoiler (10) and a spoiler bracket (13) for mounting the spoiler, characterized in that: One end of the spoiler (10) has a triangular configuration, and the other end of the spoiler (10) has an inverted C-shaped inverted cone (14) configuration; Wherein, at least two guide holes (11) are arranged on the end of the spoiler (10) having a triangular configuration.

2. The stirring device according to claim 1, characterized in that: When unfolded, the spoiler (10) is in an irregular pentagonal configuration with one end protruding.

3. The stirring device according to claim 1, characterized in that: The end portion of the spoiler (10) having a triangular configuration is in an isosceles triangle configuration.

4. The stirring device according to claim 1, characterized in that: The end portion of the spoiler (10) having a triangular configuration is in the configuration of an isosceles right triangle.

5. The stirring device according to claim 1, characterized in that: The end of the spoiler (10) having an inverted C-shaped inverted cone (14) configuration is an inverted C-shaped inverted cone (14) with an opening angle (20) of 180-240 degrees.

6. The stirring device according to any one of claims 1 to 5, characterized in that: The guide hole (11) is arranged on the longest side of the end portion of the triangular configuration.

7. The stirring device according to claim 6, characterized in that: The guide hole (11) is a circular, triangular or quadrilateral guide hole; preferably, the guide hole (11) is a circular guide hole with a diameter of 2-10 cm.

8. The stirring device according to claim 7, characterized in that: The guide holes (11) are at least four guide holes, and the guide holes (11) are arranged in a straight line at the end of the spoiler.

9. The stirring device according to claim 7 or 8, characterized in that: The spacing between the guide holes (11) is 2-10 cm.

10. The stirring device according to claim 9, characterized in that: The stirring device also includes a fixing component (17) with adjustable height. The fixing assembly (17) comprises a fixing bracket outer column (7), a fixing bracket inner column (8) and a plurality of fixing nuts and bolts; The outer column (7) of the fixed support is fixed to the outer wall of the mixing container (6) by means of fixing nuts and bolts. One end of the inner column (8) of the fixed bracket is fixedly connected to the upper end of the outer column (7) of the fixed bracket in an inverted L-shaped configuration, and the other end of the inner column (8) of the fixed bracket passes through the top of the stirring container (6) and enters the interior of the stirring container (6), and the spoiler bracket (13) is vertically fixedly connected to the inner column (8) of the fixed bracket.

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