A mixing device

Abstract

The utility model relates to a kind of mixing device, including stirring barrel, detachably set on the barrel cover of stirring barrel, the rotating disc being rotated by being arranged on the barrel cover and by driving mechanism, the first stirring part being rotated by first transmission mechanism and being arranged on the rotating disc, the second stirring part being arranged on the moving end of radial movement mechanism and being rotated by second transmission mechanism, and being arranged in the circumferential direction of rotating disc with first stirring part, radial movement mechanism is arranged on rotating disc, and moving end is driven along the radial reciprocating movement of rotating disc by third transmission mechanism, by revolution of first stirring part, material flows in barrel in a large range, and rotation is carried out to stirring and mixing of material, and second stirring part is arranged to move along the radial direction of stirring barrel, so that second stirring part can be moved to the position close to the center of stirring barrel, then, it is withdrawn to the barrel wall position of stirring barrel, so that material on radial section is all subjected to turning, improve mixing effect, and improve mixing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of mixing technology, specifically to a mixing device. Background Technology

[0002] Lithium iron phosphate (LFP) is a preferred material for power lithium-ion batteries due to its advantages such as good safety, reliable use, and abundant resources. However, the preparation of LFP requires mixing raw materials and auxiliary materials using a mixing device. The lithium source, iron source, carbon source, and auxiliary materials are precisely weighed using an electronic scale and then wet-premixed in the mixing device. Existing mixing devices typically employ planetary mixers, where the rotation and revolution of the mixing arms ensure uniform mixing of all materials. However, this method results in a fixed distance between the impeller and the mixing tank wall during mixing. This means that relatively mild shear and flow zones still exist in the area between the impeller and the tank wall, as well as in the center of the tank, creating mixing dead zones. This leads to uneven material dispersion and affects the mixing effect. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a mixing device. The first stirring element revolves to drive the material to flow in a large range within the barrel, and rotates to stir and mix the material. A second stirring element is provided that can move along the radial direction of the mixing barrel. The second stirring element can move to a position close to the center of the mixing barrel and then retract to the barrel wall, so that the material on the radial section is turned over, improving the mixing effect and increasing the mixing efficiency.

[0004] This utility model provides a mixing device to solve the above-mentioned technical problems, comprising: The mixing tank has an opening at the top and a normally closed discharge port at the bottom, with a feed port on the side wall. The lid is detachably mounted on the mixing tank; A turntable is mounted on the bucket lid and is driven to rotate by a drive mechanism; The first stirring element is disposed on the turntable and is driven to rotate by the first transmission mechanism; The second stirring component is arranged offset from the first stirring component in the circumferential direction of the turntable. The second stirring component is located on the moving end of the radial moving mechanism and is driven to rotate by the second transmission mechanism. The radial moving mechanism is located on the turntable and the moving end is driven to reciprocate along the radial direction of the turntable by the third transmission mechanism.

[0005] Furthermore, a fixed gear ring is provided between the top wall of the bucket lid and the turntable, and the first transmission mechanism includes a first transmission gear located at the top of the first stirring shaft of the first stirring member, the first transmission gear meshing with the fixed gear ring.

[0006] Furthermore, the third transmission mechanism includes a transmission shaft disposed on the turntable, a third transmission gear meshing with the fixed gear ring at the top of the transmission shaft, a disk at the lower end of the transmission shaft, a pull rod eccentrically disposed on the disk, and the other end of the pull rod being movably connected to the moving end of the radial moving mechanism.

[0007] Furthermore, the radial moving mechanism includes a mounting strip extending radially along the turntable, the mounting strip having a groove, and a slider serving as the moving end being provided in the groove, the second stirring member being rotatably mounted on the slider.

[0008] Furthermore, the second transmission mechanism includes a rack disposed in the groove, and the top of the second stirring shaft of the second stirring member is provided with a second transmission gear that meshes with the rack.

[0009] Furthermore, the second stirring element is provided in one set, and the first stirring element is evenly distributed in two sets along the circumference of the turntable, and the two sets of the first stirring element are symmetrically distributed along the radial moving mechanism.

[0010] Furthermore, the outer peripheral wall of the turntable is connected to the inner peripheral wall of the bucket lid by a bearing, and an external toothed ring is provided on the upper outer peripheral wall of the turntable. The drive mechanism is located on the outside of the bucket lid and its output end extends into the bucket lid and is fixed with a drive toothed ring that meshes with the external toothed ring.

[0011] Furthermore, the first stirring shaft of the first stirring member is provided with a stirring rod and / or stirring blades, and the second stirring shaft of the second stirring member is provided with a stirring rod and / or stirring blades.

[0012] The beneficial effects of this utility model are as follows: the opening at the top of the mixing tank allows for easy placement of the initial material, the outlet at the bottom discharges the mixed material, the inlet on the side wall allows for adding material midway, and the lid seals the mixing tank. Both the first and second agitators are mounted on a turntable. When the turntable rotates under the drive mechanism, both the first and second agitators revolve with the turntable, agitating the material within the mixing tank over a wide range. The first agitator rotates under the drive of the first transmission mechanism, applying a strong shearing force to the material, ensuring uniform mixing.

[0013] The second agitator is staggered from the first agitator in the circumferential direction of the turntable to avoid interference between them. When the third transmission mechanism drives the moving end of the radial moving mechanism to reciprocate along the radial direction of the turntable, it drives the second agitator mounted on it to reciprocate radially along the turntable, that is, to reciprocate radially along the mixing drum. The second agitator can move to a position close to the center of the mixing drum and then retreat to the drum wall position. This reciprocating movement causes the material on the radial section to be agitated, resulting in stronger convection. Furthermore, since the second agitator also revolves with the turntable, the mixing area of ​​the second agitator is no longer fixed but dynamically changing, which can quickly disperse and mix the material. In conjunction with the first agitator, it improves the mixing effect and enhances the mixing efficiency.

[0014] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a bottom view of the turntable of this utility model; Figure 3 for Figure 1 A magnified view of the details of A; Figure 4 for Figure 1 A magnified view of the details of B.

[0016] In the attached diagram: 100-mixing tank, 110-discharge port, 120-feed port, 200-tank lid, 210-turntable, 211-external gear ring, 220-fixed gear ring, 300-drive mechanism, 310-drive gear ring, 400-first mixing component, 410-first mixing shaft, 411-first transmission gear, 500-second mixing component, 510-second mixing shaft, 511-second transmission gear, 600-radial movement mechanism, 610-mounting strip, 611-slide groove, 612-rack, 620-slider, 700-third transmission mechanism, 710-transmission shaft, 720-third transmission gear, 730-disc, 740-pull rod. Detailed Implementation

[0017] Referring to the accompanying drawings, the specific embodiments of this utility model will be described in detail.

[0018] Reference Figures 1 to 4 An embodiment of a mixing device is provided.

[0019] A mixing device includes a mixing tank 100, a tank cover 200, a turntable 210, a first stirring element 400, and a second stirring element 500. The tank cover 200 is detachably mounted on the mixing tank 100. The upper opening of the mixing tank 100 facilitates the placement of initial materials into the mixing tank 100 and allows for easy removal of the tank cover 200 for cleaning the interior of the mixing tank 100. The lower end of the mixing tank 100 has a normally closed discharge port 110, which, when open, can be used to discharge the mixed materials. A valve can be installed on the normally closed discharge port 110 to control its opening and closing. The side wall of the mixing tank 100 has a feed inlet 120 for adding materials midway through the mixing process. Multiple feed inlets 120 can be provided to facilitate the injection of different materials. Furthermore, a jacket can be provided on the outer wall of the mixing tank 100, and a medium flows through the inner cavity of the jacket to control the temperature of the mixing tank 100.

[0020] A turntable 210 is mounted on the bucket lid 200 and driven to rotate by a drive mechanism 300. A first stirring element 400 is mounted on the turntable 210 and driven to rotate by a first transmission mechanism. At this time, as the turntable 210 rotates under the drive of the drive mechanism 300, the first stirring element 400, while revolving with the turntable 210 to agitate the material in the mixing bucket 100 over a wide range, also applies a strong shearing force to the material under the drive of the first transmission mechanism, ensuring uniform mixing.

[0021] The second stirring element 500 and the first stirring element 400 are staggered in the circumferential direction of the turntable 210 to avoid interference between them. The second stirring element 500 is disposed on the moving end of the radial moving mechanism 600 and is driven to rotate by the second transmission mechanism. The radial moving mechanism 600 is disposed on the turntable 210 and the moving end is driven to reciprocate radially along the turntable 210 by the third transmission mechanism 700. At this time, when the third transmission mechanism 700 drives the moving end of the radial moving mechanism 600 to reciprocate along the radial direction of the turntable 210, it drives the second stirring component 500 mounted on it to reciprocate radially along the turntable 210, that is, to reciprocate radially along the mixing tank 100. The second stirring component 500 can move to a position close to the center of the mixing tank 100 and then retreat to the position of the tank wall of the mixing tank 100. This reciprocating movement causes the material on the radial section to be agitated, resulting in stronger convection. Furthermore, since the second stirring component 500 also revolves with the turntable 210, the stirring area of ​​the second stirring component 500 is no longer fixed but dynamically changing, which can quickly disperse and mix the material. Preferably, a shielding cylinder is provided at the bottom of the turntable, the upper end of which is fixed to the bottom of the turntable 210, and a circular plate is fixed at the lower end of the shielding cylinder. A receiving space for the radial moving mechanism 600 is formed between the circular plate and the turntable. The circular plate extends and has a through hole that rotatably cooperates with the first stirring shaft. Furthermore, the through hole and the stirring shaft can be connected by a sealed bearing. A slot is also provided on the circular plate, and the axis of the slot is coaxial with the moving trajectory of the second stirring shaft. In this way, the influence of the material on the radial moving mechanism and the third transmission mechanism 700 can be reduced.

[0022] The first stirring element 400 can be provided in multiple sets. In this embodiment, the second stirring element 500 is provided in one set. The first stirring element 400 is evenly distributed in two sets along the circumference of the turntable 210 and the two sets of the first stirring element 400 are symmetrically distributed along the radial moving mechanism 600. In this way, the radial moving distance of the second stirring element 500 can be extended as much as possible, and the stirring range of the second stirring element 500 can be increased.

[0023] In some embodiments, the outer peripheral wall of the turntable 210 is connected to the inner peripheral wall of the bucket lid 200 via a bearing. An external gear ring 211 is also provided on the upper outer peripheral wall of the turntable 210. The drive mechanism 300 is located outside the bucket lid 200, with its output end extending into the bucket lid 200 and fixed with a drive gear ring 310 that meshes with the external gear ring 211. Further, the drive mechanism 300 can be a servo motor to facilitate control of the turntable 210's rotational speed. When the output end of the drive mechanism 300 rotates, it drives the drive gear ring 310 to rotate, which in turn drives the external gear ring 211 to rotate, thereby causing the turntable 210 to rotate within the bucket lid 200. Further, a scraping slurry can be provided on the turntable 210 to scrape away material from the bucket wall, preventing a large amount of material from adhering to the bucket wall.

[0024] In some embodiments, a fixed gear ring 220 is provided between the top wall of the bucket lid 200 and the turntable 210. The first transmission mechanism includes a first transmission gear 411 disposed on the top of the first stirring shaft 410 of the first stirring member 400. The first stirring shaft 410 and the turntable 210 can be connected by a bearing. The first transmission gear 411 meshes with the fixed gear ring 220. When the turntable 210 rotates, the first stirring member 400 revolves with the turntable 210. The first transmission gear 411 on the top of the first stirring shaft 410 revolves accordingly, causing displacement between it and the fixed gear ring 220 and meshing with the fixed gear ring 220. The rotation of the first transmission gear 411 drives the first stirring shaft 410 to rotate, thereby causing the first stirring member 400 to rotate on its own axis while revolving. Further, the first stirring shaft 410 is provided with a stirring rod and / or stirring blade. Preferably, at least one butterfly paddle is provided on the first stirring shaft 410 to improve the stirring effect.

[0025] Furthermore, the third transmission mechanism 700 includes a transmission shaft 710 mounted on the turntable 210, and the transmission shaft 710 and the turntable 210 are connected by bearings. The top of the transmission shaft 710 is provided with a third transmission gear 720 that meshes with the fixed gear ring 220, and the lower end of the transmission shaft 710 is provided with a disk 730. A pull rod 740 is eccentrically mounted on the disk 730, and the other end of the pull rod 740 is movably connected to the moving end of the radial moving mechanism 600. At this time, the drive shaft 710 is mounted on the turntable 210 and revolves with the rotation of the turntable 210. The third drive gear 720 at the top of the drive shaft 710 meshes with the fixed gear ring 220, driving the drive shaft 710 to rotate, which in turn drives the disc 730 to rotate. When the disc 730 rotates, the eccentrically mounted pull rod 740 pulls the moving end of the radial moving mechanism 600 to move along the radial direction of the turntable 210, thereby causing the second stirring element 500 mounted on the moving end to move radially back and forth within the stirring tank 100.

[0026] Further, the radial movement mechanism 600 includes a mounting strip 610 extending radially along the turntable 210. The mounting strip 610 has a groove 611, and a slider 620 serving as the moving end is disposed within the groove 611. The second stirring member 500 is rotatably mounted on the slider 620. At this time, the slider 620, as the moving end of the radial movement mechanism 600, reciprocates within the groove 611 along with the third transmission mechanism 700. The groove 611 not only restricts the trajectory of the slider 620 but also provides support. Further, the second transmission mechanism includes a rack 612 disposed within the groove 611. The top of the second stirring shaft 510 of the second stirring member 500 has a second transmission gear 511 meshing with the rack 612. The second stirring shaft 510 and the turntable 210 can be connected via bearings. At this time, as the slider 620 reciprocates within the groove 611, it drives the second transmission gear 511 at the top of the second stirring shaft 510 to move. The second transmission gear 511 meshes with the rack 612, causing the second transmission gear 511 to rotate, which in turn drives the second stirring shaft 510 to rotate, thus realizing the rotation of the second stirring element 500. Furthermore, the second stirring shaft 510 is provided with a stirring rod and / or stirring blades.

[0027] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A mixing device, characterized in that, include: The mixing tank (100) has an open top and a normally closed discharge port (110) at the bottom, and a feed inlet (120) on the side wall. A lid (200) is detachably mounted on the mixing tank (100); A turntable (210) is disposed on the bucket lid (200) and is driven to rotate by a drive mechanism (300); The first stirring element (400) is disposed on the turntable (210) and is driven to rotate by the first transmission mechanism; The second stirring element (500) is staggered from the first stirring element (400) in the circumferential direction of the turntable (210). The second stirring element (500) is located on the moving end of the radial moving mechanism (600) and is driven to rotate by the second transmission mechanism. The radial moving mechanism (600) is located on the turntable (210) and the moving end is driven to reciprocate along the radial direction of the turntable (210) by the third transmission mechanism (700).

2. The mixing device according to claim 1, characterized in that, A fixed gear ring (220) is provided between the top wall of the bucket lid (200) and the turntable (210). The first transmission mechanism includes a first transmission gear (411) located at the top of the first stirring shaft (410) of the first stirring component (400). The first transmission gear (411) meshes with the fixed gear ring (220).

3. The mixing device according to claim 2, characterized in that, The third transmission mechanism (700) includes a transmission shaft (710) mounted on the turntable (210). The top of the transmission shaft (710) is provided with a third transmission gear (720) that meshes with the fixed gear ring (220). The lower end of the transmission shaft (710) is provided with a disc (730). A pull rod (740) is eccentrically mounted on the disc (730). The other end of the pull rod (740) is movably connected to the moving end of the radial moving mechanism (600).

4. The mixing device according to claim 1, characterized in that, The radial moving mechanism (600) includes a mounting strip (610) extending radially along the turntable (210), the mounting strip (610) having a groove (611), the groove (611) having a slider (620) serving as the moving end, and the second stirring member (500) being rotatably mounted on the slider (620).

5. The mixing device according to claim 4, characterized in that, The second transmission mechanism includes a rack (612) disposed in the slide groove (611), and the top of the second stirring shaft (510) of the second stirring member (500) is provided with a second transmission gear (511) that meshes with the rack (612).

6. The mixing device according to claim 1, characterized in that, The second stirring component (500) is provided in one set, and the first stirring component (400) is evenly distributed in two sets along the circumference of the turntable (210), and the two sets of the first stirring component (400) are symmetrically distributed along the radial moving mechanism (600).

7. The mixing apparatus according to any one of claims 1-6, characterized in that, The outer peripheral wall of the turntable (210) is connected to the inner peripheral wall of the bucket lid (200) by a bearing. An external toothed ring (211) is also provided on the upper outer peripheral wall of the turntable (210). The drive mechanism (300) is located outside the bucket lid (200) and its output end extends into the bucket lid (200) and is fixed with a drive toothed ring (310) that meshes with the external toothed ring (211).

8. The mixing device according to any one of claims 1-6, characterized in that, The first stirring component (400) has a stirring rod and / or stirring blade on its first stirring shaft (410), and the second stirring component (500) has a stirring rod and / or stirring blade on its second stirring shaft (510).

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