Circulating homogenizing fine pretreatment mixing equipment

Abstract

According to the circulating homogenizing fine pretreatment material stirring equipment, a barrel opening of a mixing barrel (5) is obliquely arranged upwards, the mixing barrel (5) and a stirring shaft (6) independently rotate in opposite directions, barrel wall blades (8) are installed on the inner wall of the mixing barrel (5), and an inner impeller (7) is installed on the stirring shaft (6); and barrel wall blades (8) in the mixing barrel (5) are spirally arranged. And the mixing cylinder, the stirring shaft, the inner impeller and the cylinder wall blades have obvious movement synergistic effect. Materials carried by the cylinder wall blades and the stirring shaft core blades relatively rotating around the shaft flow circularly, are cut alternately, reduce stirring resistance and stirring low-efficiency areas and are fully mixed, the materials in the cylinder flow circularly in the stirring process, the inner impeller adopts a Mobius ring structure, and the grabbed and attached material parts overcome the dead weight during rotation, so that the materials are fully mixed. And the partial micro-circulating movement is carried out, a circulating mutual mixing area is formed at the middle shaft part of the mixing barrel, and the retention time of the material is prolonged, so that the circulating mutual mixing effect is more effective. The cleanliness of the cylinder wall and the blades is maintained, the energy is saved, the environment is protected, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of IPC classification B28C material mixing technology in containers, and particularly relates to a structural improvement technology for a material pretreatment mixing device. Background Technology

[0002] With the increasing intensification of factory production and the improvement of lean production management, it has become a consensus among manufacturers to conduct pre-treatment of some key raw materials to meet standards. These pre-treatment processes include fine homogenization and mixing of materials.

[0003] Because existing admixtures are widely available and of uneven quality, and additives have diverse functions and varying effects, direct use in production, even after direct mixing, often results in insufficient homogenization, making it difficult to control quality management in subsequent production and increasing the complexity of the reaction process.

[0004] In accordance with the strict requirements of refined production processes, cyclic fine mixing and homogenization pretreatment are two independent processes that are often used in material handling and may be connected sequentially. They each have unique characteristics and application scenarios.

[0005] Circulating fine mixing equipment is widely used in the food, chemical, and pharmaceutical industries to prepare various mixtures, solutions, and suspensions. Through circulating mixing, it ensures that materials are fully dispersed and uniformly mixed during the mixing process, thereby improving product quality and stability.

[0006] Patent application 202411118468.0 provides a tungsten powder auxiliary mixing device for tungsten wire processing, relating to the technical field of tungsten powder auxiliary mixing devices. It includes a Möbius ring rail, a support base, a mixing cylinder, and a fixed rail. The Möbius ring rail is mounted on the support base, and end rails are symmetrically provided on both edges of the Möbius ring rail. The two ends of the mixing cylinder are engaged and slidably disposed between the two end rails on one side of the Möbius ring rail. The mixing cylinder is driven to rotate by a drive mechanism, which includes a main gear, a first motor, and a rotating shaft. The two ends of the mixing cylinder are respectively assembled and connected to the main gear through the rotating shaft. The fixed rail is disposed on the side of the end rail away from the mixing cylinder.

[0007] In existing technologies, the fine pretreatment homogenization and mixing process has received widespread attention. Due to the diverse types of manufacturing enterprises, there are numerous and detailed implementation solutions for the urgent need to improve this technology. Therefore, it is necessary to continuously propose targeted solutions that meet the specific needs of different segments. Utility Model Content

[0008] This utility model proposes a circulating homogenizing fine pretreatment mixing equipment, enriching the technical solutions for optional equipment structures, and aims to improve existing problems.

[0009] Therefore, this utility model includes: a mixing cylinder, a stirring shaft, an inner impeller, and cylinder wall blades. The stirring shaft is coaxially arranged in the central shaft of the mixing cylinder, the cylinder opening is inclined upwards, the mixing cylinder and the stirring shaft rotate independently in opposite directions, cylinder wall blades are installed on the inner wall of the mixing cylinder, and the inner impeller is installed on the stirring shaft; wherein, the inner impeller adopts a Möbius ring structure, and the cylinder wall blades inside the mixing cylinder are spirally arranged.

[0010] Furthermore, to achieve the above objectives, this utility model is configured as follows: a mixing cylinder is mounted on the upper side of a base platform; a front support is vertically mounted at the front end of the upper side of the base platform; a front support is mounted on the upper part of the front support; a drive wheel is mounted on the inner end of the upper side of the front support; a rear support is mounted on the upper side of the rear part of the base platform, and a rear support wheel is mounted on the upper side of the rear support; the front and rear parts of the bottom of the mixing cylinder are respectively positioned on the upper sides of the drive wheel and the rear support wheel. A front limiting ring or a rear limiting ring is respectively wrapped around the front and rear ends of the outer wall of the mixing cylinder, with the bottom of the front limiting ring fixed to the front support and the rear limiting ring fixed to the rear support. A front shaft bracket or a rear shaft bracket is respectively mounted on the inner wall of the front and rear ports of the mixing cylinder, and the front and rear shaft brackets are coaxially rotatably connected to the front and rear ends of the stirring shaft through a bearing structure. A rear cover is fixed to the outside of the rear port of the mixing cylinder by a cover bolt. At the same time, a front retaining ring is installed on the front port of the mixing cylinder. A drive motor is mounted on the front support, and the drive motor is connected to the front end of the stirring shaft through a coupling transmission mechanism. The drive motor is connected to the drive wheel via a reduction gear.

[0011] In particular, the blades on the cylinder wall are segmented; the centerline and edges of the blades on the cylinder wall have an involute structure; and the central axis of the stirring shaft passes radially through the central axis of the inner impeller.

[0012] In particular, the cylinder wall blades are fixed perpendicular to the inner wall of the mixing cylinder.

[0013] In particular, the inner impeller has a Möbius single-ring structure with a strip-shaped inverted knot outer wall and a through hole in the middle of the inner impeller.

[0014] In particular, the inner impeller has a Möbius double-ring structure with a tubular inverted knot outer wall and two through holes in the middle of the inner impeller.

[0015] In particular, the inner impeller has a Möbius single-ring structure with an I-shaped flipped knot outer wall and a through hole in the middle of the inner impeller. Filter holes are opened on the outer wall of the inner impeller.

[0016] In particular, the stirring shaft and the inner impeller are installed coaxially.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] By improving the structure of the mixing drum and designing mutually cooperating blades on the drum wall and the mixing shaft, the materials carried by the relatively rotating blades on the drum wall and the mixing shaft circulate, interweave, and cut, improving the fineness and homogeneity of the mixture, reducing mixing resistance and inefficient mixing zones, and ensuring thorough mixing. The materials inside the drum circulate during the mixing process, improving mixing efficiency, maintaining the cleanliness of the drum wall and blades, and extending service life. It is energy-saving and environmentally friendly, reducing energy consumption and wear on the drum and blades. Attached Figure Description

[0019] The following figures are illustrative and should not be construed as limiting the scope of this invention. Referring to the figures helps the reader understand the embodiments of this invention and further appreciate its advantages and technical features.

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of this utility model.

[0021] Figure 2 This is a schematic diagram of the first type of internal impeller structure in Embodiment 1 of this utility model.

[0022] Figure 3 This is a schematic diagram of the second type of internal impeller structure in Embodiment 1 of this utility model.

[0023] Figure 4 This is a schematic diagram of the third type of internal impeller structure in Embodiment 1 of this utility model.

[0024] Figure 5 This is a schematic diagram of the structure of Embodiment 2 of this utility model.

[0025] Figure 6 This is a schematic diagram of the structure of Embodiment 3 of this utility model.

[0026] The reference numerals in the figures include:

[0027] 1-Base platform, 2-Front upright, 3-Front support, 4-Rear support, 5-Mixing cylinder, 6-Stirring shaft, 7-Inner impeller, 8-Cylinder wall blade, 9-Coupling transmission mechanism, 10-Front limiting cylinder ring, 11-Rear limiting cylinder ring, 12-Front shaft frame, 13-Rear shaft frame, 14-Rear cover, 15-Cover bolt, 16-Drive base wheel, 17-Rear support wheel, 18-Drive motor, 19-Front retaining ring. Detailed Implementation

[0028] It should be noted that:

[0029] The terms "comprising" and "having," and any variations thereof, are intended to cover other possible alternatives under the same logic not listed. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such process, method, product, or apparatus. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product of this invention is in use. They are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In addition, the terms "horizontal," "vertical," "hanging," etc., do not indicate that the component is required to be absolutely horizontal or hanging, but may be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted. It should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] The principle of this invention is that cyclic fine mixing and homogenization pretreatment are two important material handling processes. Through reasonable process design and equipment selection, efficient, stable and sustainable material handling and production can be achieved.

[0032] This utility model includes: a mixing cylinder 5, a stirring shaft 6, an inner impeller 7, and cylinder wall blades 8. The stirring shaft 6 is coaxially arranged in the central shaft of the mixing cylinder 5, and the opening of the mixing cylinder 5 is inclined upward. The mixing cylinder 5 and the stirring shaft 6 rotate independently in opposite directions. Cylinder wall blades 8 are installed on the inner wall of the mixing cylinder 5, and the inner impeller 7 is installed on the stirring shaft 6. The inner impeller 7 adopts a Möbius ring structure, and the cylinder wall blades 8 inside the mixing cylinder 5 are spirally arranged.

[0033] In this invention, when the mixing drum 5 rolls, the blades 8 on the drum wall carry the material attached to the wall, which is rolled obliquely upward from the bottom of the mixing drum 5 to the opening. At the same time, the stirring shaft 6 drives the inner impeller 7 to rotate in the opposite direction, mixing the material. Furthermore, under the action of the material's own weight, it moves from the opening to the bottom of the drum. The material moving on the drum wall and the material moving on the shaft center cut and mix with each other in multiple directions and multiple times. In this process, by adjusting the speed of the mixing drum 5 and the stirring shaft 6 according to the material characteristics, the material can be circulated and stirred, cut and mixed in multiple directions, and a stable homogeneous mixture can be obtained.

[0034] Meanwhile, the coordinated motion of the mixing drum 5, stirring shaft 6, inner impeller 7, and drum wall blades 8 is significant. In particular, the inner impeller 7 adopts a Möbius strip structure, and the pushing force generated by forward and reverse rotation is similar. The material gripped and attached overcomes its own weight and makes small localized cyclical movements. Furthermore, along the stirring shaft 6, a circulating mixing zone is formed in the central part of the mixing drum 5, where the material's residence time is extended, making the circulating mixing effect more effective.

[0035] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0036] The following preferred embodiments and examples of this invention will provide a more readily apparent understanding of its contents. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. In case of any conflict, the definitions in this specification shall prevail.

[0037] Example 1: As shown in the attached document Figure 1 As shown, the mixing cylinder 5 is installed on the upper side of the base platform 1; the front support 2 is erected on the front end of the upper side of the base platform 1; the front support 3 is installed on the upper part of the front support 2; the drive wheel 16 is installed on the inner end of the upper side of the front support 3; the rear support 4 is installed on the upper rear part of the base platform 1, and the rear support wheel 17 is installed on the upper side of the rear support 4; the front and rear parts of the bottom of the mixing cylinder 5 are respectively placed on the upper side of the drive wheel 16 and the rear support wheel 17.

[0038] In this embodiment of the present invention, a front limiting ring 10 or a rear limiting ring 11 is respectively wrapped around the front and rear ends of the outer wall of the mixing cylinder 5. The bottom of the front limiting ring 10 is fixed on the front support 3, and the rear limiting ring 11 is fixed on the rear support 4.

[0039] In this embodiment of the present invention, a front shaft bracket 12 or a rear shaft bracket 13 is respectively installed on the inner wall of the front and rear ports of the mixing cylinder 5. The front shaft bracket 12 and the rear shaft bracket 13 are coaxially rotatably connected to the front and rear ends of the stirring shaft 6 through a bearing structure.

[0040] In this embodiment of the invention, a rear cover 14 is fixed to the outside of the rear port of the mixing cylinder 5 by a cover bolt 15. Simultaneously, a front retaining ring 19 is installed on the front port of the mixing cylinder 5. The front retaining ring 19 is used to prevent material from overflowing from the mixing cylinder 5.

[0041] In this embodiment of the invention, a drive motor 18 is mounted on the front support 3, and the drive motor 18 is connected to the front end of the stirring shaft 6 via a coupling transmission mechanism 9. The drive motor 18 is connected to the drive wheel 16 via a reduction mechanism.

[0042] In this embodiment of the invention, the cylinder wall blades 8 are segmented; the centerline and edges of the cylinder wall blades 8 have an involute structure; the central axis of the stirring shaft 6 passes radially through the central axis of the inner impeller 7.

[0043] In this embodiment of the present invention, the cylinder wall blade 8 is fixed perpendicular to the inner wall of the mixing cylinder 5.

[0044] In this embodiment of the invention, the inner impeller 7 may be an open or closed Möbius strip structure, in the shape of a disc or annulus, with continuously rotating blades arranged around its outer wall. These blades and the hub are integrally formed, effectively making the inner wall structure of the inner impeller 7 function as the hub. This structural design extends the service life of the inner impeller 7. The inner impeller 7 is a ring structure formed by thickening the boundary curved surface, with a hollowed-out area enclosed in the center. The pushing force generated by the stirring shaft 6 driving the inner impeller 7 in both forward and reverse rotation is approximately equal, resulting in significantly reduced surface wear of the inner impeller 7 during operation.

[0045] Preferably, as shown in the appendix Figure 2 As shown, the inner impeller 7 has a Möbius single-ring structure with a strip-shaped flipped knot outer wall, and there is a through hole in the middle of the inner impeller 7.

[0046] Preferably, as shown in the appendix Figure 3 As shown, the inner impeller 7 has a Möbius double-ring structure with a tubular inverted knot outer wall, and there are two through holes in the middle of the inner impeller 7.

[0047] Preferably, as shown in the appendix Figure 4 As shown, the inner impeller 7 has a Möbius single-ring structure with an I-shaped flipped knot outer wall and a through hole in the middle. Furthermore, filter holes are formed on the outer wall of the inner impeller 7. Under centrifugal force, some material is thrown out through these filter holes. These filter holes and their walls effectively refine the mixture, significantly improving the homogenization effect.

[0048] In this embodiment of the invention, the blades on the outer wall of the inner impeller 7 are tilted to the side. When the inner impeller 7 rotates in both forward and reverse directions, the static pressure airflow through the central hole differs by less than 10%. When the inner impeller 7 rotates, the material attached to the inner wall of the central hole will slide onto the outer wall of the inner impeller 7, maintaining the cleanliness of the surface of the inner impeller 7, improving the stirring efficiency, reducing surface wear, saving maintenance procedures, and extending service life.

[0049] In this embodiment of the utility model, the working process of the device includes:

[0050] 1) After closing the back cover 14, fill the mixing cylinder 5 with the material to be processed and start the drive motor 18;

[0051] 2) The drive motor 18 drives the stirring shaft 6 to rotate through the coupling transmission mechanism 9, which starts the inner impeller 7 inside the mixing cylinder 5 to rotate synchronously; at the same time, with the support of the rear support wheel 17, the drive bottom wheel 16 drives the mixing cylinder 5 to rotate from the outer wall, and the mixing cylinder 5 and the stirring shaft 6 rotate in opposite directions on the same axis; at the same time, the front limit ring 10 and the rear limit ring 11 play a limiting and correcting role to maintain the stable and safe operation of the equipment;

[0052] 3) The materials in the equipment are self-circulated for thorough mixing and homogenization;

[0053] 4) After the work is completed, open the back cover 14, and the mixing drum 5 will rotate in the opposite direction. The material inside the drum will be quickly discharged through the rear port of the mixing drum 5.

[0054] Example 2: As shown in the attached document Figure 5 As shown, the cylinder wall blades 8 are segmented; the centerline and edges of the cylinder wall blades 8 have an involute structure; the central axis of the stirring shaft 6 passes radially through the central axis of the inner impeller 7.

[0055] In this embodiment of the present invention, during operation, due to the centrifugal force of rotation and the Möbius ring structure of the inner impeller 7, the material gripped by the hole in the inner impeller 7 moves along the surface of the torsion ring to the outer wall, and some of the material is thrown toward the inner wall of the mixing cylinder 5, and is gripped by the cylinder wall blades 8, and rotated and carried toward the cylinder opening; at the same time, the material carried by the edge of the inner impeller 7 during rotation is mixed with the material falling from the top inner wall of the mixing cylinder 5 in a similar cutting manner.

[0056] Example 3: As shown in the attached document Figure 6 As shown, the stirring shaft 6 and the inner impeller 7 are coaxially mounted. The cylinder wall blades 8 are fixed perpendicular to the inner wall of the mixing cylinder 5.

[0057] In this embodiment of the present invention, the inner impeller 7 functions similarly to the inner cylinder structure, grabbing and retaining material to increase the mixing process. Moreover, the brief retention of this material also partially prolongs the mixing time of the material in the middle of the mixing cylinder 5 due to its rotation. On the other hand, due to the centrifugal force of rotation, the Möbius ring structure of the inner impeller 7 causes the material grabbed by the hole in the inner impeller 7 to move along the surface of the torsion ring to the outer wall, and then part of it is thrown onto the inner wall of the mixing cylinder 5, where it is grabbed by the cylinder wall blades 8 and rotated and carried towards the cylinder opening.

[0058] Based on the embodiments of this utility model described above, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this utility model.

Claims

1. A circulating homogenizing fine pretreatment mixing device, comprising a mixing drum (5), a stirring shaft (6), an inner impeller (7), and drum wall blades (8); characterized in that, A stirring shaft (6) is coaxially arranged in the central part of the mixing cylinder (5). The opening of the mixing cylinder (5) is tilted upward. The mixing cylinder (5) and the stirring shaft (6) rotate independently in opposite directions. Cylinder wall blades (8) are installed on the inner wall of the mixing cylinder (5). An inner impeller (7) is installed on the stirring shaft (6). The inner impeller (7) adopts a Möbius ring structure. The cylinder wall blades (8) inside the mixing cylinder (5) are spirally arranged.

2. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The cylinder wall blades (8) are segmented; the centerline and edge of the cylinder wall blades (8) have an involute structure; the central axis of the stirring shaft (6) passes radially through the central axis of the inner impeller (7).

3. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The cylinder wall blades (8) are fixed perpendicular to the inner wall of the mixing cylinder (5).

4. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The inner impeller (7) is a Möbius single-ring structure with a strip-shaped flipped knot outer wall, and there is a through hole in the middle of the inner impeller (7).

5. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The inner impeller (7) has a Möbius double ring structure on the outer wall of the tubular inverted knot, and there are two through holes in the middle of the inner impeller (7).

6. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The inner impeller (7) is a Möbius single-ring structure with an I-shaped flip knot outer wall and a through hole in the middle of the inner impeller (7).

7. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The stirring shaft (6) and the inner impeller (7) are installed coaxially.

8. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The inner impeller (7) has a filter hole (l) on its outer wall.

9. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, The mixing cylinder (5) is installed on the upper side of the base platform (1); a front support (2) is erected on the upper front end of the base platform (1); a front support (3) is installed on the upper part of the front support (2); a drive wheel (16) is installed on the upper inner end of the front support (3); a rear support (4) is installed on the upper rear part of the base platform (1), and a rear support wheel (17) is installed on the upper side of the rear support (4); the front and rear parts of the bottom of the mixing cylinder (5) are respectively placed on the upper side of the drive wheel (16) and the rear support wheel (17); a front limiting ring (10) or a rear limiting ring (11) is respectively wrapped around the front and rear ends of the outer wall of the mixing cylinder (5), and the bottom of the front limiting ring (10) is fixed to the front support (3). The rear limiting ring (11) is fixed on the rear support (4); the front axle bracket (12) or the rear axle bracket (13) is installed on the inner wall of the front and rear ports of the mixing cylinder (5), respectively. The front axle bracket (12) and the rear axle bracket (13) are coaxially rotatably connected to the front and rear ends of the stirring shaft (6) through the bearing structure; the rear cover (14) is installed and fixed on the outside of the rear port of the mixing cylinder (5) through the cover bolt (15); the drive motor (18) is installed on the front support (3), and the drive motor (18) is connected to the front end of the stirring shaft (6) through the coupling transmission mechanism (9); the drive motor (18) is connected to the drive wheel (16) through the reduction mechanism.

10. The circulating homogenizing fine pretreatment mixing equipment according to claim 1, characterized in that, Install a front retaining ring (19) on the front port of the mixing cylinder (5).

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