A multi-stage stirred tank

Abstract

The utility model discloses a multistage stirring tank relates to waterproof coating preparation equipment field, the utility model discloses a tank body constructs with cylindrical jar body and inverted conical jar bottom, and the jar bottom bottom end coaxially communicated has the unloading pipe, stirring mechanism includes the stirring paddle of being located in the tank body, the stirring paddle constructs from top to bottom in proper order and has the first stirring part of installing on the rotating lever, broken stirring part, side wall disturbance part and second stirring part, and the first stirring, broken stirring part and side wall disturbance part are located in the jar body position, and the second stirring part is located in the jar bottom position, and the first stirring part with the second stirring part's stirring material conveying direction is opposite setting, and the side wall disturbance part constructs with jar body inner wall and the disturbance lever of being attached, to realize the purpose of three -dimensional stirring of the material in the stirring tank through single stirring paddle, avoids the emergence of the situation that material sinks to the bottom and mixes unevenly.

Description

Technical Field

[0001] This utility model relates to the field of waterproof coating preparation equipment, specifically, a multi-stage mixing tank. Background Technology

[0002] In numerous industrial sectors such as chemical, food, pharmaceutical, and coating industries, stirred tanks serve as core equipment for processes like material mixing, reaction, dissolution, and suspension. Their mixing performance directly determines the quality of the final product, production efficiency, and production costs. As industrial production demands increasing precision, uniformity, and efficiency in material handling, traditional stirred tanks have gradually revealed numerous technical shortcomings in practical applications, making them unable to meet the needs of modern industrial production.

[0003] Currently, most mainstream mixing tanks on the market adopt a single-stage mixing structure, meaning that only one set of stirring blades is installed inside the tank, and the material is stirred by rotating the blades driven by a motor. This single-stage mixing structure has obvious limitations: on the one hand, for materials with high viscosity, complex composition, or density differences, the force coverage of single-stage stirring is limited, which can easily create stirring dead zones in the tank, resulting in uneven mixing of materials. Some materials cannot fully contact and react, which not only affects the stability of product quality but may also generate waste, increase production costs, and lead to low production efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a multi-stage mixing tank to achieve three-dimensional mixing of materials in the tank using a single mixing paddle, thereby avoiding the occurrence of materials settling to the bottom and uneven mixing.

[0005] To achieve the above objectives, the present invention employs the following technical means: A multi-stage mixing tank, comprising: The tank body is constructed with a cylindrical tank body and an inverted conical tank bottom, and the bottom end of the tank bottom is coaxially connected to a discharge pipe; The stirring mechanism includes a stirring paddle disposed inside the tank. The stirring paddle is constructed from top to bottom as follows: a first stirring part, a crushing and stirring part, a side wall disturbance part, and a second stirring part mounted on a rotating rod. The first stirring part, the crushing and stirring part, and the side wall disturbance part are disposed at the tank body position, and the second stirring part is disposed at the tank bottom position. The stirring and conveying directions of the first stirring part and the second stirring part are opposite. The side wall disturbance part is constructed with a disturbance rod that fits against the inner wall of the tank body.

[0006] Preferably, the first stirring section includes two first paddles arranged along the axial direction of the rotating rod. The first paddles are composed of first stirring blades arranged around the axis of the rotating rod. The first stirring blades are inclined and used to stir and convey the material at the top of the tank body downward.

[0007] Furthermore, the first stirring blades of the two first impellers are staggered.

[0008] Furthermore, the crushing and stirring section includes two crushing paddles arranged along the axis of the rotating rod. The crushing paddles are composed of crushing rods arranged around the axis of the rotating rod, and the horizontal ends of the crushing rods are sharp structures with reduced thickness.

[0009] Furthermore, the crushing rods of the two crushing paddles are staggered in the axial direction of the rotating rod.

[0010] Furthermore, the sidewall disturbance portion includes a horizontal rod arranged around the axis of the rotating rod, the end of the horizontal rod extending toward the sidewall of the tank body, and the end of the horizontal rod is fitted with an upwardly extending disturbance rod.

[0011] Furthermore, the second stirring section includes two second paddles arranged along the axis of the rotating rod. The second paddles are composed of second stirring blades arranged around the axis of the rotating rod. The second stirring blades are inclined and the second paddles are used to stir and convey the material in the bottom of the tank upward.

[0012] Furthermore, the second stirring blades of the two second paddles are staggered along the axial direction of the rotating rod.

[0013] Furthermore, the top of the rotating rod extends out of the tank body and is connected to the rotating end of the rotating motor for transmission.

[0014] Furthermore, the interior of the tank bottom is provided with several guide plates surrounding the axis of the tank body. The guide plates are constructed with inclined surfaces, which are oriented towards the material flow direction inside the tank bottom.

[0015] This utility model has the following beneficial effects during use: The mixture inside the tank is stirred by the agitator. Under the action of the first agitator, the material near the top of the tank is stirred while moving downwards, allowing the slurry containing particles to enter the crushing and agitating section. Under the action of the crushing and agitating section, larger particles in the slurry are crushed, and the rotation of the crushing and agitating section further mixes the material. For the slurry near the inner wall of the tank, the side wall agitator prevents a large amount of slurry from adhering to the side wall, thus avoiding uneven mixing. For the slurry in the inverted conical tank bottom, the second agitator further mixes the material at the bottom while allowing it to flow upwards. This allows the crushing and agitating section to receive both downward and upward-flowing slurry, resulting in further homogenization due to the opposing impacts of the slurry in the crushing and agitating section and the side wall agitator, thus improving the crushing and agitating effect of the mixture. Moreover, under the action of the second stirring section, the material at the bottom moves upward continuously, which can, to a certain extent, prevent the material from accumulating in large quantities at the bottom of the tank due to the inverted conical tank bottom. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention.

[0018] Figure 3 for Figure 2 A magnified schematic diagram of the structure at point A in the middle.

[0019] Among them, 1-tank body, 2-tank bottom, 3-discharge pipe, 4-rotating rod, 5-first stirring part, 6-crushing and stirring part, 7-side wall disturbance part, 8-second stirring part, 9-disturbance rod, 10-first stirring blade, 11-crushing rod, 12-horizontal rod, 13-second stirring blade, 14-rotating motor, 15-guide plate. 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, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically 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, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., 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 of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0025] 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.

[0026] Please refer to Figures 1 to 3 As shown, a multi-stage mixing tank includes: The tank body is constructed with a cylindrical tank body 1 and an inverted conical tank bottom 2, and the bottom end of the tank bottom 2 is coaxially connected to a discharge pipe 3; The stirring mechanism includes a stirring paddle disposed inside the tank. The stirring paddle is constructed from top to bottom as follows: a first stirring part 5, a crushing and stirring part 6, a side wall disturbance part 7, and a second stirring part 8 mounted on a rotating rod 4. The first stirring part, the crushing and stirring part 6, and the side wall disturbance part 7 are disposed at the position of the tank body 1, and the second stirring part 8 is disposed at the position of the tank bottom 2. The stirring and conveying directions of the first stirring part 5 and the second stirring part 8 are opposite. The side wall disturbance part 7 is constructed with a disturbance rod 9 that fits against the inner wall of the tank body 1.

[0027] In this way, the mixture inside the tank is stirred by the stirring mechanism. Under the action of the first stirring section 5, the material near the top of the tank body 1 is stirred while moving from top to bottom, allowing the slurry containing particles to enter the crushing and stirring section 6. Under the action of the crushing and stirring section 6, larger particles in the slurry are crushed, and the rotation of the crushing and stirring section 6 further stirs and mixes the material. As for the slurry near the inner wall of the tank, the side wall disturbance section 7 prevents a large amount of slurry from adhering to the side wall of the tank, thus avoiding the situation where the slurry near the inner wall of the tank cannot be uniformly stirred and mixed. As for the slurry inside the inverted conical tank bottom 2, the second stirring section 8 allows for further mixing of the mixture at the bottom of the tank while simultaneously causing the material at the bottom to flow upwards. This allows the material in the crushing and stirring section 6 to receive both top-down and bottom-up slurry, resulting in further uniform mixing due to the opposing impacts between the slurry in the crushing and stirring section 6 and the side wall agitation section 7. This also improves the crushing and stirring effect of the crushing and stirring section 6 on the mixture. Furthermore, the continuous upward movement of the material at the bottom under the action of the second stirring section 8 helps to prevent the material from accumulating excessively at the bottom of the tank due to the inverted conical tank bottom 2.

[0028] Specifically, the first stirring part 5 includes two first paddles arranged along the axis of the rotating rod 4. The first paddle is composed of a first stirring blade 10 arranged around the axis of the rotating rod 4. The first stirring blade 10 is inclined and is used to stir and convey the material at the top of the tank body 1 downward.

[0029] Furthermore, the first stirring blades 10 of the two first impellers are staggered.

[0030] Meanwhile, the crushing and stirring part 6 includes two crushing paddles arranged along the axis of the rotating rod 4. The crushing paddles are composed of crushing rods 11 arranged around the axis of the rotating rod 4. The horizontal ends of the crushing rods 11 are sharp structures with reduced thickness.

[0031] Furthermore, the crushing rods 11 of the two crushing paddles are staggered in the axial direction of the rotating rod 4.

[0032] Furthermore, the sidewall disturbance part 7 includes a horizontal rod 12 arranged around the axis of the rotating rod 4, the end of the horizontal rod 12 extending toward the sidewall of the tank body 1, and the end of the horizontal rod 12 is equipped with an upwardly extending disturbance rod 9.

[0033] In this way, the side wall disturbance part 7 can not only scrape the inner wall of the tank with the disturbance rod 9 to avoid a large amount of slurry adhering to the inner wall of the tank, but also use the horizontal rod 12 to stir and disturb the material in the tank, thereby improving the uniformity of material mixing.

[0034] Furthermore, the second stirring part 8 includes two second paddles arranged along the axial direction of the rotating rod 4. The second paddles are composed of second stirring blades 13 arranged around the axial direction of the rotating rod 4. The second stirring blades 13 are inclined and the second paddles are used to stir and transport the material in the tank bottom 2 upward.

[0035] Furthermore, the second stirring blades 13 of the two second paddles are staggered along the axial direction of the rotating rod 4.

[0036] Furthermore, the top end of the rotating rod 4 extends out of the tank body 1 and is connected to the rotating end of the rotating motor 14 for transmission.

[0037] To further prevent the mixed slurry from depositing on the inner wall of the tank bottom 2, a number of guide plates 15 are arranged inside the tank bottom 2 around the axis of the tank body. The guide plates 15 are constructed with inclined surfaces, which are oriented towards the material flow direction inside the tank bottom 2.

[0038] In this way, by using the guide plate 15 and its inclined surface facing the material flow direction, the material on the inner wall of the tank bottom 2 can be guided during the stirring of the material, so that it can flow upward continuously in conjunction with the second stirring part 8, thereby preventing the mixture from depositing on the side wall of the tank bottom 2 and affecting the stirring effect.

[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-stage mixing tank, characterized in that, include: The tank body is constructed with a cylindrical tank body (1) and an inverted conical tank bottom (2), and the bottom end of the tank bottom (2) is coaxially connected to a discharge pipe (3). The stirring mechanism includes a stirring paddle disposed in the tank body. The stirring paddle is constructed from top to bottom as follows: a first stirring part (5), a crushing and stirring part (6), a side wall disturbance part (7), and a second stirring part (8) mounted on a rotating rod (4). The first stirring part (5), the crushing and stirring part (6), and the side wall disturbance part (7) are disposed in the tank body (1), and the second stirring part (8) is disposed in the tank bottom (2). The stirring and conveying directions of the first stirring part (5) and the second stirring part (8) are opposite. The side wall disturbance part (7) is constructed with a disturbance rod (9) that fits against the inner wall of the tank body (1).

2. The multi-stage mixing tank according to claim 1, characterized in that, The first stirring part (5) includes two first paddles arranged along the axis of the rotating rod (4). The first paddle is composed of a first stirring blade (10) arranged around the axis of the rotating rod (4). The first stirring blade (10) is inclined and used to stir and convey the material at the top of the tank body (1) downward.

3. A multi-stage mixing tank according to claim 2, characterized in that, The first stirring blades (10) of the two first impellers are staggered.

4. A multi-stage mixing tank according to claim 1, characterized in that, The crushing and stirring part (6) includes two crushing paddles arranged along the axis of the rotating rod (4). The crushing paddles are composed of crushing rods (11) arranged around the axis of the rotating rod (4). The horizontal ends of the crushing rods (11) are sharp structures with reduced thickness.

5. A multi-stage mixing tank according to claim 4, characterized in that, The crushing rods (11) of the two crushing paddles are staggered in the axial direction of the rotating rod (4).

6. A multi-stage mixing tank according to claim 1, characterized in that, The sidewall disturbance part (7) includes a horizontal rod (12) arranged around the axis of the rotating rod (4), the end of the horizontal rod (12) extending toward the sidewall of the tank body (1), and the end of the horizontal rod (12) is equipped with an upwardly extending disturbance rod (9).

7. A multi-stage mixing tank according to claim 1, characterized in that, The second stirring part (8) includes two second paddles arranged along the axis of the rotating rod (4). The second paddles are composed of second stirring blades (13) arranged around the axis of the rotating rod (4). The second stirring blades (13) are inclined and the second paddles are used to stir and transport the material in the bottom of the tank (2) upward.

8. A multi-stage mixing tank according to claim 7, characterized in that, The second stirring blades (13) of the two second paddles are staggered along the axial direction of the rotating rod (4).

9. A multi-stage mixing tank according to claim 1, characterized in that, The top of the rotating rod (4) extends out of the tank body (1) and is connected to the rotating end of the rotating motor (14) for transmission.

10. A multi-stage mixing tank according to any one of claims 1 to 9, characterized in that, The bottom of the tank (2) is provided with a number of guide plates (15) around the axis of the tank body. The guide plates (15) are constructed with inclined surfaces, which are oriented toward the material flow direction inside the bottom of the tank (2).

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