Vibration stirring baffle tube structure for stirred tank and stirring equipment

Abstract

Provided are a vibration stirring baffle tube structure for a stirring kettle and a stirring device. The baffle tube structure is connected to the inner wall of the stirring kettle and comprises a plurality of baffle tubes, a baffle tube support plate, one or more clamps, and a clamp positioning plate. The baffle tube support plate is connected to the inner wall of the stirring kettle. The baffle tube is a hollow metal tube with closed ends, the two ends of the plurality of baffle tubes are connected to the baffle tube support plate, and the two ends of the clamp positioning plate are connected to the baffle tube support plate. The baffle tube and the clamp positioning plate extend along the axial direction of the stirring kettle. The two ends of the clamp are respectively connected to the baffle tube support plate and the clamp positioning plate, the clamp is connected to the plurality of baffle tubes and forms a limit for the baffle tubes along the radial direction and the circumferential direction of the stirring kettle. The plurality of baffle tubes can hinder the tangential flow of liquid material and generate vibration during stirring operation, thereby enhancing the stirring effect.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of stirring equipment, and particularly relates to a vibrating stirring baffle pipe structure for a stirring kettle and a stirring equipment. BACKGROUND

[0002] The stirrer of the existing stirring equipment is generally arranged in a top-middle manner. When the viscosity of the liquid material to be stirred is low and the stirring speed is high, the liquid will rotate along the direction of the paddle. The liquid in the middle part of the tank will flow to the tank wall due to the centrifugal force, so that the liquid level at the tank wall rises and the liquid level in the middle region decreases, forming a vortex, which is usually called a vortex zone or a cylindrical rotating zone. When the speed is high to a certain extent, the bottom of the vortex will contact the stirring paddle. At this time, the air outside will enter the liquid, and the density of the liquid mixed with the gas will decrease, thereby reducing the mixing effect.

[0003] In order to solve the above problems, a baffle is arranged in the stirring kettle. The baffle is also called a baffle plate or a baffle plate. The baffle can change the tangential flow of the rotating into radial flow and axial flow, and can also increase the shear strength of the fluid and produce local turbulence, thereby improving the stirring effect. The baffle structure in the prior art is generally a long strip-shaped plate fixed vertically on the tank wall of the stirrer.

[0004] Patent CN218189432U discloses a baffle structure inside a stirring kettle, which comprises a stirring kettle. The inner wall of the stirring kettle is provided with a plurality of baffle supports. The inside of the stirring kettle is provided with baffle supports and a baffle assembly. The baffle supports are fixed vertically along the circumference on the inner wall of the stirring kettle and are distributed in a stepwise arithmetic progression on the inner wall of the stirring kettle. The baffle assembly is fixed on the baffle supports.

[0005] Although the above-mentioned utility model patent improves the arrangement form of the traditional baffle structure in the stirring kettle, it still uses the traditional plate-shaped baffle structure. SUMMARY

[0006] The present application is made in view of the above-mentioned prior art. The purpose of the present application is to provide a vibrating stirring baffle pipe structure for a stirring kettle arranged in the stirring kettle, which can hinder the tangential flow, produce local turbulence, and produce vibration to enhance the stirring effect.

[0007] The present application also provides a stirring equipment comprising the above-mentioned vibrating stirring baffle pipe structure for a stirring kettle.

[0008] The present application provides a vibrating stirring baffle pipe structure for a stirring kettle, which is connected to the inner wall of the stirring kettle, comprising a plurality of baffle pipes, a baffle pipe support plate, one or more clamps, a clamp positioning plate,

[0009] The baffle tube support plate is connected to the inner wall of the stirred tank,

[0010] The baffle tube is a hollow metal tube with both ends closed,

[0011] Both ends of the plurality of baffle tubes are connected to the baffle tube support plate, and both ends of the clamp positioning plate are connected to the baffle tube support plate,

[0012] The baffle tube and the clamp positioning plate extend along the axial direction of the stirred tank,

[0013] Both ends of the clamp are respectively connected to the baffle tube support plate and the clamp positioning plate,

[0014] The clamp is connected to the plurality of baffle tubes and forms a limit for the baffle tubes along the radial direction and the circumferential direction of the stirred tank,

[0015] The plurality of baffle tubes can hinder the tangential flow of liquid materials and generate vibration during stirring to enhance the stirring effect.

[0016] In at least one possible implementation, the clamp includes a first clamp plate and a second clamp plate,

[0017] The first clamp plate and the second clamp plate respectively form a plurality of baffle tube grooves,

[0018] Opposite two baffle tube grooves form a limit for the baffle tube.

[0019] In at least one possible implementation, the first clamp plate and the second clamp plate are connected together using bolts or pins.

[0020] In at least one possible implementation, the baffle tube support plate is formed with a plurality of support plate clamp grooves,

[0021] The clamp positioning plate is formed with a plurality of positioning plate clamp grooves,

[0022] The first clamp plate and the second clamp plate respectively form two positioning portions,

[0023] The positioning portions can be respectively buckled into the support plate clamp grooves and the positioning plate clamp grooves, so that the clamp can be adjustably connected to the baffle tube support plate and the clamp positioning plate.

[0024] In at least one possible implementation, the number of the support plate clamp grooves and the positioning plate clamp grooves respectively formed by the baffle tube support plate and the clamp positioning plate is greater than the number of the clamps, so as to adjust the positions of the clamps.

[0025] In at least one possible implementation, the axial two ends of the baffle tube support plate are respectively formed with bending portions connected to the inner wall of the stirred tank,

[0026] The plurality of baffle tubes are indirectly connected to the inner wall of the stirred tank through the two bending portions, without other connection structures between the baffle tubes and the stirred tank.

[0027] In at least one possible implementation, the plurality of baffle tubes are arranged at intervals in the radial direction of the stirred tank.

[0028] In at least one possible implementation, the baffle tube support plate is welded to the stirred tank, the fixture positioning plate and the baffle tubes, respectively.

[0029] The application also provides a stirring device comprising a stirred tank, a stirring shaft, one or more stirring paddles,

[0030] The stirring shaft is arranged at the center of the stirred tank, and the stirring paddles are connected to the stirring shaft,

[0031] The stirring device further comprises the aforementioned vibration stirring baffle tube structure for the stirred tank,

[0032] The baffle tube structure is connected to the inner wall of the stirred tank, and the plurality of baffle tubes of one baffle tube structure are arranged in sequence in the radial direction of the stirred tank.

[0033] In at least one possible implementation, a plurality of baffle tube structures are arranged at intervals in the circumferential direction of the inner wall of the stirred tank.

[0034] The vibration stirring baffle tube structure for the stirred tank and the stirring device provided by the application can further improve the stirring effect of the stirred tank by using the vibration generated by the baffle tube structure arranged on the inner wall of the stirred tank. BRIEF DESCRIPTION OF DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the stirring device according to one embodiment of the application.

[0036] Figure 2 It is a cross-sectional structural schematic diagram of the stirring device according to one embodiment of the application.

[0037] Figure 3 It is a partial enlarged view of Figure 1

[0038] Figure 4 It is a partial structural schematic diagram of the baffle tube structure in the A direction. Figure 3

[0039] It is a partial structural schematic diagram of the baffle tube structure in the A direction. Figure 5 Figure 3 ​​A partial structure diagram of a B-B cross section of the baffle tube structure.

[0040] Explanation of reference numerals

[0041] 100 baffle tube structure

[0042] 110 baffle tube

[0043] 120 baffle tube support plate

[0044] 121 support plate clamp groove

[0045] 122 bent portion

[0046] 130 clamp

[0047] 131 first clamp plate

[0048] 1311 baffle tube groove

[0049] 1312 positioning portion

[0050] 132 second clamp plate

[0051] 1321 baffle tube groove

[0052] 1322 positioning portion

[0053] 133 bolt

[0054] 140 clamp positioning plate

[0055] 141 clamp groove

[0056] 200 stirred tank

[0057] 300 stirring shaft

[0058] 400 stirring paddle DETAILED DESCRIPTION

[0059] Exemplary embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the specific description is only intended to teach those skilled in the art how to implement the present application and is not intended to limit the scope of the present application.

[0060] Embodiments of the present application provide a vibrating baffle tube structure (hereinafter, sometimes simply referred to as "baffle tube structure") for a stirred tank. As shown in FIG. 1, the baffle tube structure 100 can include a plurality of baffle tubes 110, a baffle tube support plate 120, one or more clamps 130, and a clamp positioning plate 140. Figure 3

[0061] Specifically, as shown in FIG. 2, the baffle tube structure 100 can include a plurality of baffle tubes 110, a baffle tube support plate 120, one or more clamps 130, and a clamp positioning plate 140. Figure 1 Figure 2 Figure 3 ​​​As shown, the baffle support plate 120 can be connected to the inner wall of the mixing vessel 200. Both ends of a plurality of baffles 110 can be connected to the baffle support plate 120, and both ends of the clamp positioning plate 140 can be connected to the baffle support plate 120. The baffles 110 and the clamp positioning plate 140 can extend along the axial direction of the mixing vessel 200.

[0062] Preferably, the baffle 110 can be a hollow metal tube closed at both ends. It is understood that, compared to existing heat exchange tubes installed in the stirred tank, the baffle 110 is closed at both ends and requires no external interface. Furthermore, the baffle 110 does not need to be filled with heat exchange medium or other fillers, eliminating the risk of filler leakage and contamination of materials.

[0063] Preferably, the axial ends of the baffle support plate 120 can each be formed with a bent portion 122, which can be connected to the inner wall of the mixing vessel 200. Multiple baffles 110 can be indirectly connected to the inner wall of the mixing vessel 200 through only two bent portions 122, without providing other connection structures between the baffles 110 and the mixing vessel 200.

[0064] like Figure 3 , Figure 4 , Figure 5 As shown, the two ends of the clamp 130 can be connected to the pipe support plate 120 and the clamp positioning plate 140, respectively. The pipe support plate 120 can form multiple support plate clamp slots 121, and the clamp positioning plate 140 can form multiple positioning plate clamp slots 141. The number of support plate clamp slots 121 and positioning plate clamp slots 141 can be equal, and their positions can correspond (i.e., the axial height is the same, and they are set on the same horizontal plane). The clamp 130 can include a first clamp plate 131 and a second clamp plate 132. The first clamp plate 131 and the second clamp plate 132 can each form two positioning parts 1312 and 1322. The positioning parts 1312 and 1322 can respectively engage with the support plate clamp slots 121 and the positioning plate clamp slots, so that the clamp 130 is connected to the pipe support plate 120 and the clamp positioning plate 140.

[0065] Preferably, the number of support plate clamp slots 121 and positioning plate clamp slots 141 formed by the retaining pipe support plate 120 and clamp positioning plate 140 respectively can be greater than the number of clamps 130, so as to adjust the position of the clamps 130. It can be understood that the position and spacing of the support plate clamp slots 121 and positioning plate clamp slots 141 can be set according to the specific working conditions.

[0066] Furthermore, such as Figure 3 , Figure 4 , Figure 5As shown, the clamp 130 can be connected to multiple baffles 110 and limit the baffles 110 in the radial and circumferential directions along the mixing vessel 200. The first clamp plate 131 and the second clamp plate 132 can respectively form multiple baffle grooves 1311 and 1321, and the two opposite baffle grooves 1311 and 1312 can limit the baffles 110.

[0067] Preferably, the first clamping plate 131 and the second clamping plate 132 can be connected using bolts 133 to allow for changing the connection position of the clamps 133. It is understood that the first clamping plate 131 and the second clamping plate 132 can also be connected using pins. The first clamping plate 131 and the second clamping plate 132 can partially overlap to facilitate connection using bolts or pins.

[0068] Preferably, the baffle structure 100 may include, for example, four baffles 110. The baffles 110 may be arranged sequentially along the radial direction of the stirred tank 200. The gaps between the baffles 110 may be equal.

[0069] Preferably, the baffle support plate 120 can be welded to the mixing vessel 200, the clamp positioning plate 140, and the baffle 110 respectively.

[0070] It is understood that, during the stirring operation, the multiple baffles 110 of the baffle structure in the embodiments of this application, in addition to obstructing the tangential fluid flow, will also cause the baffles 110 to vibrate due to the impact of the fluid material on the baffles during stirring. The vibrating baffles can agitate the surrounding material, further enhancing the stirring effect while obstructing tangential flow. By adjusting the number and position of the clamps, the support of the baffles can be changed, and the length of the unsupported part (the baffle part without clamps) can be adjusted. This can further change the natural frequency of the baffle structure to adapt to the fluid parameters of different materials, allowing the baffles to generate a resonance effect during stirring. By generating a resonance effect, the vibration stirring effect of the baffles can be improved.

[0071] The principle of vibration generated by the baffle and related calculations can be found in Appendix C "Fluid-Induced Vibration" of GB / T151-2014 "Heat Exchangers". It can be understood that under different operating conditions, the baffle may experience type 1-n fluctuations due to differences in material fluid parameters and its own structure.

[0072] Embodiments of this application also provide a stirring device, which may include the above-described vibrating stirring baffle structure for a stirring vessel. For example... Figure 1 As shown, the mixing equipment may also include a mixing vessel 200, a mixing shaft 300, and one or more mixing paddles 400.

[0073] The baffle structure 100 can be connected to the inner wall of the mixing vessel 200, the stirring shaft 300 can be disposed at the radial center of the mixing vessel 200, and one or more stirring paddles 400 can be disposed on the stirring shaft 300. Multiple baffles 110 of a baffle structure 100 can be arranged sequentially along the radial direction of the mixing vessel 200.

[0074] For example, the inner wall of the stirred tank 200 may be uniformly arranged with, for example, four sets of multiple baffle structures 100.

[0075] It is understood that existing technologies employ tubular structures, which function as heat exchange tubes, located near the inner wall of a stirred tank. The temperature inside the tank can be controlled by circulating a heat transfer medium, such as coolant, through these tubular structures. However, the design of these heat exchange tube structures and their connection to the stirred tank is typically relatively small, making it difficult to effectively impede tangential flow like a baffle. The heat exchange tube structure design also aims to minimize or avoid vibration (especially resonance) to prevent damage to the tubular structure, which could cause the internal heat transfer medium to overflow and contaminate the stirring equipment and materials. In contrast, the baffle structure of this embodiment uses multiple parallel baffles whose size is sufficient to impede tangential flow. Furthermore, its structure and connection method are designed to intentionally induce baffle vibration (resonance) to further enhance the stirring effect.

[0076] The following is a brief description of some of the beneficial effects of the above-described embodiments of this application.

[0077] The vibration stirring baffle structure and stirring device for a stirred tank provided in this application use a baffle structure including multiple baffles to replace the existing long plate-shaped baffles. This can generate vibration (resonance) to further enhance the stirring effect while hindering tangential flow and generating local turbulence. At the same time, the length of the unsupported part of the baffle can be adjusted by adjusting the number and position of the clamps, thereby adjusting the natural frequency of the baffle to adapt to different fluid parameters.

[0078] It is understood that, in this application, when the number of parts or components is not specifically limited, the number can be one or more, where multiple refers to two or more. For cases where the number of parts or components shown in the drawings and / or described in the specification is, for example, two, three, four, etc., this specific number is generally exemplary and not restrictive, and can be understood as multiple, i.e., two or more; however, this does not mean that this application excludes the case of one.

[0079] It should be understood that the above embodiments are merely exemplary and are not intended to limit this application. Those skilled in the art can make various modifications and changes to the above embodiments under the teachings of this application without departing from the scope of this application.

Claims

1. A vibrating agitator baffle tube structure for an agitator tank, which is connected to the inner wall of the agitator tank, characterized in that, The device comprises a plurality of baffle tubes (110), a baffle tube support plate (120), one or more clamps (130), a clamp positioning plate (140), The baffle tube support plate (120) is connected to the inner wall of the stirred tank (200), The baffle tube (110) is a hollow metal tube with closed ends, The two ends of the plurality of baffle tubes (110) are connected to the baffle tube support plate (120), and the two ends of the clamp positioning plate (140) are connected to the baffle tube support plate (120), The baffle tube (110) and the clamp positioning plate (140) extend along the axial direction of the stirred tank (200), The two ends of the clamp (130) are respectively connected to the baffle tube support plate (120) and the clamp positioning plate (140), The clamp (130) is connected to the plurality of baffle tubes (110) and forms a limit along the radial and circumferential directions of the stirred tank (200), The plurality of baffle tubes (110) can hinder the tangential flow of liquid material and generate vibration during stirring to enhance the stirring effect, The clamp (130) comprises a first clamp plate (131) and a second clamp plate (132), The first clamp plate (131) and the second clamp plate (132) respectively form a plurality of baffle tube grooves (1311, 1321), Opposite two baffle tube grooves (1311, 1321) form a limit for the baffle tube (110), The baffle tube support plate (120) is formed with a plurality of support plate clamp grooves (121), The clamp positioning plate (140) is formed with a plurality of positioning plate clamp grooves (141), The first clamp plate (131) and the second clamp plate (132) respectively form two positioning portions (1312, 1322), The positioning portions (1312, 1322) can be respectively buckled into the support plate clamp grooves (121) and the positioning plate clamp grooves (141), so that the clamp (130) can be adjustably connected to the baffle tube support plate (120) and the clamp positioning plate (140), The number of the support plate clamp grooves (121) and the positioning plate clamp grooves (141) formed by the baffle tube support plate (120) and the clamp positioning plate (140) is greater than the number of the clamps (130), so as to adjust the position of the clamps (130).

2. The vibrating baffle tube structure for an agitated vessel according to claim 1, wherein The first clamp plate (131) and the second clamp plate (132) are connected together by bolts (133) or pins.

3. The vibrating baffle tube structure for an agitated vessel according to claim 1, wherein The axial ends of the baffle tube support plate (120) are respectively formed with bending portions (122), which are connected to the inner wall of the stirred tank (200), The plurality of baffle tubes (110) are indirectly connected to the inner wall of the stirred tank (200) through the two bending portions (122) without other connection structures between the baffle tubes (110) and the stirred tank (200).

4. The vibrating baffle tube structure for an agitated vessel according to claim 1, wherein The plurality of baffle tubes (110) are arranged at intervals in the radial direction of the stirred tank (200).

5. The vibrating baffle tube structure for an agitated vessel according to claim 1, wherein The baffle pipe support plate (120) is welded to the stirring kettle (200), the clamp positioning plate (140) and the baffle pipe (110) respectively.

6. A stirring device comprising a stirring kettle (200), a stirring shaft (300), one or more stirring paddles (400), The stirring shaft (300) is arranged at the center of the stirring kettle (200), and the stirring paddles (400) are connected to the stirring shaft (300), characterized in that The stirring device further comprises the vibration stirring baffle pipe structure for the stirring kettle according to any one of claims 1 to 5, The baffle pipe structure (100) is connected to the inner wall of the stirring kettle (200), and the plurality of baffle pipes (110) of one baffle pipe structure (100) are arranged in sequence along the radial direction of the stirring kettle (200).

7. The apparatus of claim 6, wherein, A plurality of baffle pipe structures (100) are arranged uniformly in the circumferential direction on the inner wall of the stirring kettle (200).

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