Batch mixer for lithium manganate and lithium iron phosphate

Abstract

The utility model belongs to the technical field of batch mixing, particularly relates to a batch mixer for lithium manganate and lithium iron phosphate, and provides the following scheme aiming at the problems that the existing lithium manganate and lithium iron phosphate with different weights are layered in the feeding process and the stirring effect is reduced: the batch mixer comprises a main body, the material mixing structure is mounted at the top of the main body and can move up and down in the main body, the material mixing structure is connected with a cyclone separation group for conveying lithium manganate and lithium iron phosphate through a feeding pipe, and a stirring mechanism for stirring is mounted in the material mixing structure. The situation that powder is prone to layering due to gravity in a large space can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of batch mixing, in particular to a batch mixer for lithium manganate and lithium iron phosphate. Background Art

[0002] CN202221482957.0 provides a batch mixer for lithium manganate and lithium iron phosphate, including a main body. A mixing structure is fixedly connected to the top of the main body. The mixing structure as a whole includes a housing, a mixing chamber, a driving motor, a stirring fan, fan blades and a first discharge pipe. The first discharge pipe is connected to the mixing chamber in communication. The driving motor and the stirring fan are arranged in the mixing chamber in a matching manner. The first discharge pipe communicates with the bottom of the mixing chamber. An installation frame is fixedly connected inside the main body, and a machine body is arranged below the installation frame. The horizontally arranged stirring shaft rotates to drive the vertically arranged stirring fan blades, achieving the effect of rapid and uniform stirring and mixing. The material is delayed and conveyed downward through the guiding baffle, which is beneficial to its uniform mixing. The trapezoidally protruding guiding seat reduces the space at the bottom of the machine body, and cooperates with the discharge auger to enhance the material mixing. The discharge auger achieves the effect of finally mixing, conveying and discharging the material;

[0003] However, after the mixing is completed by the mixing structure and the mixed material is sent into the machine body through the material channel, the mixed material will undergo a discrete phenomenon. Due to different gravity effects, the lithium manganate and lithium iron phosphate with different weights will be stratified during the feeding process, reducing the stirring effect. Summary of the Utility Model

[0004] The utility model provides a batch mixer for lithium manganate and lithium iron phosphate, which solves the defect that the lithium manganate and lithium iron phosphate with different weights will be stratified during the feeding process in the prior art, reducing the stirring effect.

[0005] The utility model provides the following technical solutions:

[0006] A batch mixer for lithium manganate and lithium iron phosphate includes a main body and a mixing structure installed at the top of the main body and capable of moving up and down in the main body. The mixing structure is connected to a cyclone separation group for conveying lithium manganate and lithium iron phosphate through a feed pipe. A stirring mechanism for stirring is installed in the mixing structure. After the mixing of lithium manganate and lithium iron phosphate is completed by the mixing structure, the height of the mixing structure is controlled to control the feeding height of the mixture, so as to avoid the separation of the mixture due to too high feeding height.

[0007] As a further improvement of the above solution,

[0008] Preferably, the mixing structure is fixedly connected to the output shaft of the cylinder. The cylinder is fixed to the top of the main body. A manhole is also provided on the top of the main body. A telescopic annular sealing cylinder is installed on the top of the main body. One end of the sealing cylinder is fixedly connected to the main body, and the other end is fixedly connected to the mixing structure. By setting the sealing cylinder, it plays a protective role for the mixing structure to prevent powder from adhering to the upper part of the mixing structure.

[0009] Preferably, the inside of the mixing structure is formed with a first stirring chamber and a second stirring chamber by a partition board. The first stirring chamber is flat. A horizontal stirring blade is provided in the first stirring chamber. The horizontal stirring blade is installed on the upper stirring shaft. A plurality of first through holes are opened on the partition board. A turntable is also fixed on the upper stirring shaft. A plurality of second through holes are opened on the turntable. The first through holes and the second through holes intermittently coincide. The first stirring chamber is set to be flat, and a horizontal stirring blade is provided in the first stirring chamber. The horizontal stirring blade stirs lithium manganate and lithium iron phosphate in the horizontal direction. The first through holes and the second through holes intermittently coincide. The powder after horizontal stirring falls into the lower second stirring chamber.

[0010] Preferably, the turntable is located above the partition board.

[0011] Preferably, a transfer box is fixedly connected to the lower part of the partition board by a connecting rod. A receiving cavity is provided in the transfer box. The transfer box is respectively rotatably connected to the upper stirring shaft at the upper part, the rotating shafts on both sides, and the lower stirring shaft at the lower part through bearings. Vertical stirring paddles are fixedly connected to the outer ends of the rotating shafts. Bevel gears that mesh with each other are installed at the ends of the upper stirring shaft, the lower stirring shaft, and the rotating shafts on both sides. When the upper stirring shaft rotates, it will drive the rotating shafts on both sides and the lower stirring shaft to rotate at the same time. The rotating shafts on both sides drive the vertical stirring paddles to rotate, so as to stir the powder in the second stirring chamber vertically.

[0012] Preferably, a screw blade is fixed on the lower stirring shaft. The screw blade is located at the material discharging port of the mixing structure. The rotation of the lower stirring shaft will drive the screw blade to discharge materials quantitatively.

[0013] Preferably, a plurality of arc-shaped stirring blades are fixedly connected to the end of the lower stirring shaft. The arc-shaped stirring blades smooth the powder output by the screw blade to prevent it from directly accumulating directly below the screw blade.

[0014] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present invention.

[0015] In the present invention, the mixing of lithium manganate and lithium iron phosphate is completed through the mixing structure. After the mixing is completed, by controlling the height of the mixing structure, the discharging height of the mixture is controlled to avoid the separation of the mixture due to too high discharging height.

[0016] Improve the stirring effect and the mixing uniformity through horizontal stirring and vertical stirring, and set up a first stirring chamber and a second stirring chamber with a relatively small space, thereby reducing the situation that the powder is prone to stratification under the influence of gravity in a large space. Brief Description of the Drawings

[0017] Figure 1 It is a partial structural schematic diagram of lithium manganate and lithium iron phosphate provided by an embodiment of the present invention;

[0018] Figure 2 It is a mixing structure schematic diagram of lithium manganate and lithium iron phosphate provided by an embodiment of the present invention;

[0019] Figure 3 It is an arc-shaped stirring blade structure schematic diagram of a batch mixer for lithium manganate and lithium iron phosphate provided by an embodiment of the present invention;

[0020] Figure 4 It is a structure schematic diagram of a rotating shaft and a vertical stirring paddle for lithium manganate and lithium iron phosphate provided by an embodiment of the present invention.

[0021] Reference Signs:

[0022] 1, manhole; 2, main body; 3, cylinder; 4, cyclone separation group; 5, sealing cylinder; 6, mixing structure; 7, first stirring chamber; 8, second stirring chamber; 9, upper stirring shaft; 10, horizontal stirring blade; 11, turntable; 12, partition board; 13, vertical stirring paddle; 14, connecting rod; 15, adapter box; 16, lower stirring shaft; 17, auger blade; 18, arc-shaped stirring blade; 19, rotating shaft; 20, bevel gear. Detailed Description of the Invention

[0023] The embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

[0024] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "connection", "installation" should be understood in a broad sense. For example, "connection" can be a detachable connection or a non-detachable connection; it can be a direct connection or an indirect connection through an intermediate medium. In addition, "communication" can be a direct communication or an indirect communication through an intermediate medium. Among them, "fixing" means that they are connected to each other and the relative position relationship after connection remains unchanged. The orientation terms mentioned in the embodiments of the present invention, such as "inside", "outside", "top", "bottom", etc., are only for reference to the direction of the drawings. Therefore, the orientation terms used are for better and clearer description and understanding of the embodiments of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present invention.

[0025] In the embodiments of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0026] In the embodiments of the present utility model, "and / or" is merely a description of the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, the character " / " in this document generally represents an "or" relationship between the associated objects before and after.

[0027] The reference to "one embodiment" or "some embodiments" etc. described in this specification means that in one or more embodiments of the present utility model, the specific features, structures or characteristics described in connection with that embodiment are included. Thus, the statements "in one embodiment", "in some embodiments", "in other some embodiments", "in still other embodiments" etc. that appear in different places in this specification do not necessarily all refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in another way. The terms "comprise", "include", "have" and their variants all mean "include but not limited to", unless otherwise specifically emphasized in another way.

[0028] Embodiment

[0029] Refer to Figures 1 - 4 , a batch mixer for lithium manganate and lithium iron phosphate, comprising a main body 2, and a mixing structure 6 installed at the top of the main body 2 and capable of moving up and down within the main body 2. The mixing structure 6 is fixedly connected to the output shaft of a cylinder 3, and the cylinder 3 is fixed to the top of the main body 2. A manhole 1 is also opened at the top of the main body 2, and a telescopic annular sealing cylinder 5 is installed at the top of the main body 2. One end of the annular sealing cylinder 5 is fixedly connected to the main body 2, and the other end is fixedly connected to the mixing structure 6;

[0030] The mixing structure 6 is connected to the cyclone separation group 4 for conveying lithium manganate and lithium iron phosphate through a feed pipe. A stirring mechanism for stirring is installed inside the mixing structure 6. Inside the mixing structure 6, a first stirring chamber 7 and a second stirring chamber 8 are formed by a partition plate 12. The first stirring chamber 7 is flat. A horizontal stirring blade 10 is provided in the first stirring chamber 7. The horizontal stirring blade 10 is installed on the upper stirring shaft 9. A plurality of first through holes are formed in the partition plate 12. A turntable 11 is also fixed on the upper stirring shaft 9. A plurality of second through holes are formed in the turntable 11. The first through holes and the second through holes intermittently coincide. The turntable 11 is located above the partition plate 12. The lower part of the partition plate 12 is fixedly connected to a transfer box 15 through a connecting rod 14. An accommodation cavity is provided in the transfer box 15. The transfer box 15 is respectively rotationally connected to the upper stirring shaft 9 at the upper part, the rotating shafts 19 on both sides, and the lower stirring shaft 16 at the lower part through bearings. A vertical stirring paddle 13 is fixedly connected to the outer end of the rotating shaft 19. Bevel gears 20 that mesh with each other are installed at the ends of the upper stirring shaft 9, the lower stirring shaft 16, and the rotating shafts 19 on both sides. A screw blade 17 is fixed on the lower stirring shaft 16. The screw blade 17 is located at the discharge port of the mixing structure 6. A plurality of arc-shaped stirring blades 18 are fixedly connected to the end of the lower stirring shaft 16.

[0031] The working principle of this application:

[0032] The pulverized lithium manganate and lithium iron phosphate enter the cyclone separation group 4 for separation, and the particle size of the powder is redistributed, and then they are respectively quantitatively fed into the first stirring chamber 7. The motor drives the upper stirring shaft 9 to rotate. The upper stirring shaft 9 drives the turntable 11 and the horizontal stirring blade 10 to rotate. The horizontal stirring blade 10 stirs and mixes the powder in the first stirring chamber 7 in the horizontal direction. During the rotation of the turntable 11, the first through holes and the second through holes intermittently coincide. When the first through holes and the second through holes coincide, the mixed powder drops into the second stirring chamber 8. When the upper stirring shaft 9 rotates, it will drive the rotating shaft 19 and the lower stirring shaft 16 to rotate. The rotating shaft 19 will drive the vertical stirring paddle 13 to rotate. The vertical stirring paddle 13 will stir and mix the powder in the second stirring chamber 8 in the vertical direction. A screw blade 17 and arc-shaped stirring blades 18 are installed on the lower stirring shaft 16. The rotation of the lower stirring shaft 16 will drive the screw blade 17 and the arc-shaped stirring blades 18 to rotate. The rotation of the screw blade 17 will quantitatively discharge the second stirring chamber 8. The rotation of the arc-shaped stirring blades 18 will smooth the accumulated powder. The mixing structure 6 is driven by a cylinder 3 to move up and down, so as to control the discharging height.

[0033] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered within the protection scope of the present utility model; without conflict, the embodiments of the present utility model and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. A batch mixer for lithium manganese oxide and lithium iron phosphate, characterized in that: The invention comprises a main body (2), and a mixing structure (6) installed on the top of the main body (2) and capable of moving up and down in the main body (2); the mixing structure (6) is connected to a cyclone separation group (4) for conveying lithium manganese oxide and lithium iron phosphate through a feeding pipe; and a stirring mechanism for stirring is installed in the mixing structure (6).

2. The batch mixer of lithium manganate and lithium iron phosphate according to claim 1, characterized in that: The mixing structure (6) is fixedly connected to the output shaft of the cylinder (3); the cylinder (3) is fixed to the top of the main body (2); a manhole (1) is also provided on the top of the main body (2); a retractable annular sealing cylinder (5) is installed on the top of the main body (2); one end of the annular sealing cylinder (5) is fixedly connected to the main body (2) and the other end is fixedly connected to the mixing structure (6).

3. The batch mixer of lithium manganate and lithium iron phosphate according to claim 2, characterized in that: A first stirring chamber (7) and a second stirring chamber (8) are formed inside the mixing structure (6) through a partition (12); the first stirring chamber (7) is flat; a horizontal stirring blade (10) is arranged inside the first stirring chamber (7); the horizontal stirring blade (10) is mounted on an upper stirring shaft (9); a plurality of first through holes are opened on the partition (12); a turntable (11) is also fixed on the upper stirring shaft (9); a plurality of second through holes are formed on the turntable (11); the first through holes and the second through holes overlap intermittently.

4. The batch mixer of lithium manganate and lithium iron phosphate according to claim 3, characterized in that: The rotating disk (11) is located above the partition (12).

5. The batch mixer of lithium manganate and lithium iron phosphate according to claim 3, characterized in that: The lower part of the partition (12) is fixedly connected to a transfer box (15) via a connecting rod (14), a receiving chamber is provided in the transfer box (15), and the transfer box (15) is rotatably connected to an upper stirring shaft (9), rotating shafts (19) on both sides, and a lower stirring shaft (16) on the lower part via bearings, the outer end of the rotating shaft (19) is fixedly connected to a vertical stirring paddle (13), and the ends of the upper stirring shaft (9), the lower stirring shaft (16), and the rotating shafts (19) on both sides are all equipped with mutually meshing bevel gears (20).

6. The batch mixer of lithium manganate and lithium iron phosphate according to claim 5, characterized in that: An auger blade (17) is fixed on the lower stirring shaft (16), and the auger blade (17) is located at the discharge port of the mixing structure (6).

7. The batch mixer of lithium manganate and lithium iron phosphate according to claim 6, characterized in that: A plurality of arc-shaped stirring blades (18) are fixedly connected to the end of the lower stirring shaft (16).

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