A kind of stirring tank

Abstract

The present application relates to a kind of stirring tank, belong to storage device field.The stirring tank includes tank body, rotating shaft, first stirring rod, second stirring rod and driving part.Tank body has accommodating cavity and with the feed inlet and discharge port of accommodating cavity communication.Rotating shaft is located in accommodating cavity, rotating shaft includes coaxially arranged first body and second body, and part of second body is arranged in first body.First stirring rod has oppositely arranged first end and second end, and first end is hinged with first body.Second stirring rod both ends are respectively hinged in second body and second end.Second body has first position and second position, when first position, second body is located in the length maximum in first body, and second end is away from the axis of rotating shaft.In second position, second body is located in the volume minimum in first body, and second end is close to the axis of rotating shaft.Driving part is connected with first body, and is used to drive rotating shaft rotation.

Description

Technical Field

[0001] This invention belongs to the field of storage devices, and particularly relates to a stirring tank. Background Technology

[0002] A mixing tank is a widely used container with agitation equipment in industries such as chemical, food, pharmaceutical, and environmental protection. A mixing tank generally consists of a tank body and an agitator installed inside the tank. During operation, although the agitator's movement covers a large portion of the tank's interior, a certain gap must be maintained between the agitator and the tank's inner wall to avoid it. This results in extremely slow flow velocity and almost zero shear force at the inner wall, causing the material to remain stationary or in a slow-moving state for extended periods. Consequently, some additives and colloidal particles, lacking flow disturbance, will cross-link over time, gradually forming a soft gel that adheres to the inner wall of the tank. Therefore, regular cleaning of the mixing tank is necessary. However, the agitator occupies a significant amount of space within the tank, which can hinder cleaning. Summary of the Invention

[0003] In view of the above problems, this application provides a mixing tank that facilitates cleaning of the tank.

[0004] This application provides a mixing tank, including a tank body, a rotating shaft, a first stirring rod, a second stirring rod, and a driving component. The tank body has a receiving cavity and an inlet and an outlet communicating with the receiving cavity. The rotating shaft is located within the receiving cavity and includes a first body and a second body coaxially arranged, with a portion of the second body passing through the first body. The first stirring rod has a first end and a second end arranged opposite to each other, with the first end hinged to the first body. The two ends of the second stirring rod are respectively hinged to the second body and the second end. The second body has a first position and a second position. In the first position, the length of the second body within the first body is at its maximum, and the second end is away from the axis of the rotating shaft. In the second position, the volume of the second body within the first body is at its minimum, and the second end is close to the axis of the rotating shaft. The driving component is connected to the first body and is used to drive the rotating shaft to rotate.

[0005] Specifically, during normal operation, the second body is adjusted to the first position, at which point the second end is away from the axis of rotation, maximizing the agitation range of the first and second stirring rods within the containment cavity and reducing material agglomeration. Simultaneously, the second body's length within the first body is maximized, resulting in maximum transmission stability between the two bodies, allowing the drive component to simultaneously move both the first and second bodies. When cleaning is required, the second body is adjusted to the second position, at which point the second end is close to the axis of rotation, ensuring that both the first and second stirring rods are close to the axis of rotation and away from the inner wall of the tank, providing the operator with space for cleaning.

[0006] In the above technical solution, by adjusting the position of the second body, the first stirring rod and the second stirring rod can have a large stirring area while reducing the risk of the first stirring rod and the second stirring rod interfering with the operator's cleaning of the tank, thereby facilitating the operator's cleaning of the tank.

[0007] In some embodiments, a first spline hole is provided at the end of the first body away from the drive member, and the second body includes a first spline portion, which is inserted into the first spline hole and matches the first spline hole.

[0008] In the above technical solution, the transmission between the first body and the second body is realized through the cooperation of the first spline part and the first spline hole, which is simple in structure and easy to implement.

[0009] In some embodiments, the tank includes a shell, a first cover, a second cover, a mounting plate, and a connector. One end of the shell has an opening. The first and second covers are arranged circumferentially around the tank, and are detachably connected to the tank and seal the opening. The mounting plate is connected to the first cover and located within a receiving cavity. One end of the second body, away from the driving member, passes through the mounting plate and the first cover to be located outside the tank. A mounting portion is provided on the outer periphery of the second body, and the connector is used to connect the mounting plate and the mounting portion when the second body is in a second position.

[0010] In the above technical solution, on the one hand, by setting the first cover and the end of the second body away from the driving component for support, the stability of the rotating shaft is improved; on the other hand, by setting the mounting plate and the connector, the second body can be fixed by the mounting part when it is in the second position, thereby reducing the risk of the second body moving during the cleaning process. At the same time, the second cover makes it easier for the operator to open the tank for cleaning.

[0011] In some embodiments, the mounting plate is rotatably connected to the first cover body circumferentially around the tank body. The mixing tank also includes a connecting rod and a scraper. The connecting rod extends axially along the tank body, and one end of the connecting rod is detachably connected to the mounting plate. The scraper is connected to the other end of the connecting rod away from the mounting plate and abuts against the inner peripheral wall of the housing.

[0012] In the above technical solution, by detachably connecting one end of the connecting rod to the mounting plate, the connecting rod and the scraper can be selectively installed during cleaning, and the connecting rod is driven to rotate by driving the mounting plate to rotate, thereby cleaning the inner wall of the tank.

[0013] In some embodiments, a second spline hole is provided at the end of the mounting plate away from the first cover, and the second body includes a second spline portion located on the side of the mounting portion away from the first body. In a first position, the second spline portion is disengaged from the second spline hole. In a second position, the second spline portion is inserted into the second spline hole.

[0014] In the above technical solution, the transmission between the second body and the mounting plate is realized through the cooperation of the second spline part and the second spline hole. Thus, during the cleaning process, the mounting plate, connecting rod and scraper can be driven to rotate by the driving component, which reduces the labor intensity of the operator.

[0015] In some embodiments, the side of the mounting plate facing the mounting part is provided with a mounting groove extending radially along the tank body. When the second body is in the second position, a portion of the connecting rod is located in the mounting groove and sandwiched between the mounting plate and the mounting part.

[0016] In the above technical solution, by setting an installation groove and placing part of the connecting rod inside the installation groove and clamping it between the installation plate and the installation part, the connecting rod is fixed while the groove wall of the installation groove provides circumferential restraint to the connecting rod, thereby improving the stability of the connecting rod and the scraper.

[0017] In some embodiments, the connector is a bolt, the mounting plate has a first through hole, the connecting rod has a second through hole, and the mounting part has a threaded hole. When the second body is in the second position, at least one connector passes through the first through hole and the second through hole in sequence and is threaded into the threaded hole.

[0018] In the above technical solution, by passing at least one connector through the first through hole and the second through hole in sequence and threadedly engaging with the threaded hole, the mounting plate and the connecting rod are locked simultaneously while the second body and the mounting plate are locked. The structure is simple and easy to implement.

[0019] In some embodiments, the discharge port is located at the bottom of the tank, and the scraper extends along a spiral line coaxial with the tank. The scraper rotates to drive the material toward the discharge port.

[0020] In the above technical solution, by setting the scraper to extend in a spiral direction, the scraper can drive the material to move towards the discharge port when it rotates, thereby facilitating the collection of the material.

[0021] In some embodiments, the mixing tank further includes a locking element disposed outside the first cover body, which is used to lock the second body in a first position and a second position.

[0022] In the above technical solution, the stability of the rotating shaft during operation is further improved by setting a locking component.

[0023] In some embodiments, a first protrusion is provided on the outer periphery of the first body, and a first end is hinged to the first protrusion. A second protrusion is provided on the outer periphery of the second body, and one end of the second stirring rod is hinged to the second protrusion.

[0024] In the above technical solution, by providing a first protrusion for hinged connection of the first end and a second protrusion for hinged connection of one end of the second stirring rod, the structural weakening of the first and second bodies is reduced compared to directly hinged connection of the first end to the first body and one end of the second stirring rod to the second body, thereby improving the reliability of the transmission rod. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the structure of the mixing tank provided in an embodiment of the present invention; Figure 2 A cross-sectional view of a stirring tank located in a first position, provided for an embodiment of the present invention; Figure 3 A cross-sectional view of a stirring tank located in a second position, provided for an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the first cover and the mounting plate provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the second body provided in an embodiment of the present invention; Figure 6 A cross-sectional view of a mixing tank located in a second position and equipped with a scraper, provided for an embodiment of the present invention; Figure 7 for Figure 6 A magnified view of a portion of point A in the middle.

[0027] 100-Mixing tank, 10-Tank body, 10A-Receiving cavity, 10B-Inlet, 10C-Outlet, 11-Shell, 12-First cover, 121-Connecting pipe, 13-Second cover, 14-Base, 15-Mounting plate, 151-Mounting groove, 152-Second spline hole, 16-Connector, 20-Rotating shaft, 21-First body, 211-First spline hole, 212-First protrusion, 22-Second body, 221-First spline part, 222-Mounting part, 223-Second spline part, 224-Second protrusion, 30-First stirring rod, 31-First end, 32-Second end, 40-Second stirring rod, 50-Driver, 60-Connecting rod, 61-Scraper, 70-Locking component Detailed Implementation

[0028] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0029] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application 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 application.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" 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 between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0032] Reference Figures 1-7 This application provides a mixing tank 100, including a tank body 10, a rotating shaft 20, a first stirring rod 30, a second stirring rod 40, and a driving component 50. The tank body 10 has a receiving cavity 10A and an inlet 10B and an outlet 10C communicating with the receiving cavity 10A. The rotating shaft 20 is located within the receiving cavity 10A and includes a first body 21 and a second body 22 coaxially arranged, with a portion of the second body 22 passing through the first body 21. The first stirring rod 30 has a first end 31 and a second end 32 arranged opposite to each other, with the first end 31 hinged to the first body 21. The two ends of the second stirring rod 40 are respectively hinged to the second body 22 and the second end 32. The second body 22 has a first position and a second position. In the first position, the length of the second body 22 within the first body 21 is the largest, and the second end 32 is far away from the axis of the rotating shaft 20. In the second position, the volume of the second body 22 within the first body 21 is the smallest, and the second end 32 is close to the axis of the rotating shaft 20. The drive component 50 is connected to the first body 21 and is used to drive the rotating shaft 20 to rotate.

[0033] Understandably, the feed inlet 10B is an open structure for allowing materials to enter the receiving cavity 10A, and the discharge outlet 10C is an open structure for allowing materials to leave the receiving cavity 10A.

[0034] For example, the first stirring rod 30 and the second stirring rod 40 can be multiple rods arranged circumferentially around the rotation axis 20.

[0035] In some embodiments, a base 14 is provided at the bottom of the tank 10 to support the tank 10 and provide installation space for the drive component 50, which can be a drive motor.

[0036] Specifically, during normal operation, the second body 22 is adjusted to the first position, at which point the second end 32 is away from the axis of the rotating shaft 20, so that the first stirring rod 30 and the second stirring rod 40 have the maximum stirring range within the receiving cavity 10A, reducing material agglomeration. Simultaneously, the length of the second body 22 within the first body 21 is maximized, resulting in maximum transmission stability between the second body 22 and the first body 21, allowing the drive component 50 to simultaneously move the first body 21 and the second body 22. When cleaning is required, the second body 22 is adjusted to the second position, at which point the second end 32 is close to the axis of the rotating shaft 20, so that both the first stirring rod 30 and the second stirring rod 40 are close to the rotating shaft 20 and away from the inner wall of the tank 10, providing space for the operator to clean the tank 10.

[0037] In this technical solution, by adjusting the position of the second body 22, the first stirring rod 30 and the second stirring rod 40 can have a larger stirring area while reducing the risk of the first stirring rod 30 and the second stirring rod 40 interfering with the operator's cleaning of the tank 10, thereby facilitating the operator's cleaning of the tank 10.

[0038] Please refer to Figure 3 and Figure 5 According to some embodiments of this application, the first body 21 is provided with a first spline hole 211 at one end away from the drive member 50, and the second body 22 includes a first spline portion 221, which is inserted into the first spline hole 211 and matches the first spline hole 211.

[0039] In this technical solution, the transmission between the first body 21 and the second body 22 is achieved through the cooperation of the first spline portion 221 and the first spline hole 211, which is simple in structure and easy to implement.

[0040] Please refer to Figure 1 and Figure 3According to some embodiments of this application, the tank 10 includes a shell 11, a first cover 12, a second cover 13, a mounting plate 15, and a connector 16. One end of the shell 11 has an opening. The first cover 12 and the second cover 13 are arranged circumferentially around the tank 10, and are detachably connected to the tank 10 and seal the opening. The mounting plate 15 is connected to the first cover 12 and located within the receiving cavity 10A. One end of the second body 22, away from the driving member 50, passes through the mounting plate 15 and the first cover 12 to be located outside the tank 10. A mounting portion 222 is provided on the outer periphery of the second body 22, and the connector 16 is used to connect the mounting plate 15 and the mounting portion 222 when the second body 22 is in a second position.

[0041] Understandably, the first cover 12 and the second cover 13 can be two parts of a single cover. For example, both the first cover 12 and the second cover 13 are provided with flange portions, and the edge of the opening of the housing 11 is also provided with a flange portion. The flange portion of the first cover 12 is connected to the flange portion of the housing 11 by bolts, and the flange portion of the second cover 13 is connected to the flange portion of the housing 11 by bolts.

[0042] In some embodiments, the first cover 12 is provided with a through hole, and the tank body 10 further includes a connecting pipe 121, which connects the first cover 12 and the mounting plate 15. The cavity of the connecting pipe 121 is connected to the through hole and the channel on the mounting plate 15 for accommodating the second body 22.

[0043] For example, the connectors 16 may be a plurality of those spaced circumferentially about the rotation axis 20.

[0044] In this technical solution, on the one hand, by providing support for the end of the second body 22 away from the drive member 50 through the first cover 12 and the mounting plate 15, the stability of the rotation of the rotating shaft 20 is improved; on the other hand, by providing the mounting plate 15 and the connector 16, the second body 22 can be fixed by the mounting part 222 when it is in the second position, thereby reducing the risk of the second body 22 shifting during the cleaning process. Simultaneously, by providing the second cover 13, the operator can easily open the tank 10 to clean its interior.

[0045] Please refer to Figure 3 and Figure 6 According to some embodiments of this application, the mounting plate 15 is rotatably connected to the first cover 12 along the circumference of the tank body 10. The mixing tank 100 also includes a connecting rod 60 and a scraper 61. The connecting rod 60 extends axially along the tank body 10, and one end of the connecting rod 60 is detachably connected to the mounting plate 15. The scraper 61 is connected to the other end of the connecting rod 60 away from the mounting plate 15 and abuts against the inner peripheral wall of the housing 11.

[0046] In some embodiments, the mounting plate 15 may be connected to the other end of the connecting tube 121 away from the first cover 12 via a bearing.

[0047] In this technical solution, by detachably connecting one end of the connecting rod 60 to the mounting plate 15, the connecting rod 60 and the scraper 61 can be selectively installed during cleaning, and the connecting rod 60 is driven to rotate by driving the mounting plate 15 to rotate, thereby cleaning the inner wall of the tank 10.

[0048] Please refer to Figures 5-7 According to some embodiments of this application, the mounting plate 15 has a second spline hole 152 at the end away from the first cover 12, and the second body 22 includes a second spline portion 223, which is located on the side of the mounting portion 222 away from the first body 21. In the first position, the second spline portion 223 is disengaged from the second spline hole 152. In the second position, the second spline portion 223 is inserted into the second spline hole 152.

[0049] In this technical solution, the transmission between the second body 22 and the mounting plate 15 is realized through the cooperation of the second spline part 223 and the second spline hole 152. Thus, during the cleaning process, the mounting plate 15, the connecting rod 60 and the scraper 61 can be rotated by the drive member 50, which reduces the labor intensity of the operator.

[0050] Please refer to Figure 4 and Figure 7 According to some embodiments of this application, the mounting plate 15 is provided with a mounting groove 151 extending radially along the tank body 10 on the side facing the mounting part 222. When the second body 22 is in the second position, a portion of the connecting rod 60 is located in the mounting groove 151 and sandwiched between the mounting plate 15 and the mounting part 222.

[0051] In this technical solution, by setting the mounting groove 151 and placing part of the connecting rod 60 within the mounting groove 151 and clamping it between the mounting plate 15 and the mounting part 222, the connecting rod 60 is fixed while the groove wall of the mounting groove 151 provides circumferential limitation, thereby improving the stability of the connecting rod 60 and the scraper 61.

[0052] Please refer to Figure 7 According to some embodiments of this application, the connector 16 is a bolt, the mounting plate 15 is provided with a first through hole, the connecting rod 60 is provided with a second through hole, and the mounting part 222 is provided with a threaded hole. When the second body 22 is in the second position, at least one connector 16 passes through the first through hole and the second through hole in sequence and is threadedly engaged with the threaded hole.

[0053] In this technical solution, by passing at least one connector 16 through the first through hole and the second through hole in sequence and engaging with the threaded hole, the mounting plate 15 and the connecting rod 60 are locked at the same time as the second body 22 and the mounting plate 15. The structure is simple and easy to implement.

[0054] Please refer to Figure 6 According to some embodiments of this application, the discharge port 10C is located at the bottom of the tank 10, and the scraper 61 extends along a spiral line coaxial with the tank 10. The scraper 61 rotates to drive the material to move towards the discharge port 10C.

[0055] In this technical solution, by setting the scraper 61 to extend in a spiral direction, the scraper 61 can drive the material to move towards the discharge port 10C when it rotates, thereby facilitating the collection of the material.

[0056] Please refer to Figures 1-3 According to some embodiments of this application, the mixing tank 100 further includes a locking member 70, which is disposed outside the first cover 12 and is used to lock the second body 22 in a first position and a second position.

[0057] In some embodiments, the locking member 70 is a split structure. The locking member 70 has a through hole for accommodating the second body 22. An annular groove is provided on the wall of the through hole. A third protrusion and a fourth protrusion are provided on the outer periphery of the second body 22. When in the first position, the third protrusion is accommodated within the annular groove, thereby restricting the axial movement of the third protrusion on the rotation shaft 20 by the groove wall. When in the second position, the fourth protrusion is accommodated within the annular groove, thereby restricting the axial movement of the fourth protrusion on the rotation shaft 20 by the groove wall.

[0058] In this technical solution, the stability of the rotating shaft 20 during operation is further improved by setting the locking component 70.

[0059] Please refer to Figure 2 According to some embodiments of this application, a first protrusion 212 is provided on the outer periphery of the first body 21, and a first end 31 is hinged to the first protrusion 212. A second protrusion 224 is provided on the outer periphery of the second body 22, and one end of the second stirring rod 40 is hinged to the second protrusion 224.

[0060] In this technical solution, by providing a first protrusion 212 for hinged connection of the first end 31 and by providing a second protrusion 224 for hinged connection of one end of the second stirring rod 40, the structural weakening of the first body 21 and the second body 22 is reduced compared to directly hinged connection of the first end 31 to the first body 21 and one end of the second stirring rod 40 to the second body 22, thereby improving the reliability of the transmission rod.

[0061] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other.

[0062] The above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit this application. For those skilled in the art, this application can have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A stirred tank characterized by, include: The tank body has a receiving cavity and an inlet and an outlet communicating with the receiving cavity; A rotating shaft is located within the receiving cavity. The rotating shaft includes a first body and a second body arranged coaxially, with a portion of the second body passing through the first body. A first stirring rod has a first end and a second end that are disposed opposite to each other, the first end being hinged to the first body; The second stirring rod is hinged at both ends to the second body and the second end, respectively. The second body has a first position and a second position. In the first position, the second body has the longest length within the first body and the second end is far away from the axis of the rotation shaft. In the second position, the second body has the smallest volume within the first body and the second end is close to the axis of the rotation shaft. A driving component, connected to the first body, is used to drive the rotating shaft to rotate.

2. The mixing tank according to claim 1, characterized in that, The first body has a first spline hole at one end away from the driving member, and the second body includes a first spline portion, which is inserted into the first spline hole and matches the first spline hole.

3. A mixing tank according to claim 1, characterized in that, The tank includes: A housing, wherein one end of the housing is provided with an opening; A first cover and a second cover are arranged along the circumference of the tank body, and the first cover and the second cover are detachably connected to the tank body and seal the opening; An installation plate is connected to the first cover and located within the receiving cavity, and one end of the second body away from the drive member passes through the installation plate and the first cover to be located outside the tank. A connector is provided on the outer periphery of the second body, and the connector is used to connect the mounting plate and the mounting part when the second body is in the second position.

4. A mixing tank according to claim 3, characterized in that, The mounting plate can be rotatably connected to the first cover body along the circumference of the tank body; The mixing tank also includes: A connecting rod extends axially along the tank body, and one end of the connecting rod is detachably connected to the mounting plate; A scraper is attached to the other end of the connecting rod away from the mounting plate and abuts against the inner peripheral wall of the housing.

5. A mixing tank according to claim 4, characterized in that, The mounting plate is provided with a second spline hole at the end away from the first cover, and the second body includes a second spline portion, which is located on the side of the mounting portion away from the first body. In the first position, the second spline portion disengages from the second spline hole; In the second position, the second spline portion is inserted into the second spline hole.

6. A mixing tank according to claim 5, characterized in that, The mounting plate has a mounting groove extending radially along the tank body on the side facing the mounting part. When the second body is in the second position, part of the connecting rod is located in the mounting groove and sandwiched between the mounting plate and the mounting part.

7. A mixing tank according to claim 6, characterized in that, The connector is a bolt, the mounting plate is provided with a first through hole, the connecting rod is provided with a second through hole, and the mounting part is provided with a threaded hole; When the second body is in the second position, at least one of the connecting members passes through the first through hole and the second through hole in sequence and is threaded into the threaded hole.

8. A mixing tank according to claim 4, characterized in that, The discharge port is located at the bottom of the tank, and the scraper extends along a spiral line coaxial with the tank. The scraper rotates to drive the material toward the discharge port.

9. A mixing tank according to claim 3, characterized in that, The mixing tank also includes: A locking element is disposed outside the first cover body, and the locking element is used to lock the second body in the first position and the second position.

10. A mixing tank according to any one of claims 1-9, characterized in that, The first body has a first protrusion on its outer periphery, and the first end is hinged to the first protrusion; The second body has a second protrusion on its outer periphery, and one end of the second stirring rod is hinged to the second protrusion.

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