A self-cleaning device for tank spraying and stirring

Abstract

The present application provides a kind of tank spray stirring self-cleaning device, including tank, rotating assembly, stirring assembly, air injection assembly and spray assembly, the inside of the tank forms a stirring mixing space, the rotating assembly is fixed on the tank, the rotating assembly part enters the stirring mixing space and can rotate relative to the tank, the stirring assembly is arranged on the part of the rotating assembly that enters the stirring mixing space, the air injection assembly is fixed to the end of the rotating assembly that enters the stirring mixing space and is towards the bottom of the tank, for air injection to the bottom of the tank, the spray assembly includes liquid supply component and spray component, the liquid supply component is fixed to the outside of the tank, the spray component is slidably sleeved on the part of the rotating assembly that enters the stirring mixing space and is connected with the liquid supply component by pipeline, for spraying cleaning fluid to the inner wall of the tank.

Description

Technical Field

[0001] This invention relates to the field of lithium-ion battery manufacturing technology, and in particular to a tank spraying and stirring self-cleaning device. Background Technology

[0002] In the lithium-ion battery market, lithium iron phosphate batteries are widely used in electric vehicles, energy storage power stations, and other fields due to their outstanding safety performance, excellent cycle life, and good environmental friendliness. As a core component of lithium-ion batteries, the stability of the production process and the precise control of each step in the lithium iron phosphate cathode material have a decisive impact on the material's overall performance and lifespan.

[0003] Currently, the mainstream synthesis processes for lithium iron phosphate cathode materials include the high-temperature solid-state method and the liquid-phase method. In the more widely used high-temperature solid-state method, the feeding and milling processes, as key upstream steps, are mostly completed using a wet process. Initially, a certain proportion of raw and auxiliary materials are added to a mixing tank containing pure water. Through the tank's stirring and self-circulation function, the raw and auxiliary materials are fully mixed to form a thoroughly and uniformly dispersed slurry. The uniformity of the slurry dispersion directly affects the quality of the final product. The slurry is then transferred to a mill for grinding, during which the particle size is controlled until it meets the process requirements. Because the feeding and milling processes involve multiple slurry circulations and tank transfers, the frequent slurry transfers make tank cleaning an indispensable and crucial step in the production process.

[0004] Existing tank cleaning devices for cathode material production still have many limitations in practical production applications. Currently, most tank cleaning devices generally use simple spraying, which has relatively low cleaning efficiency. For dried slurry adhering to the tank wall, ordinary rinsing devices may not be able to effectively remove residues, resulting in poor cleaning effects. Summary of the Invention

[0005] In view of this, it is necessary to provide a tank spraying and stirring self-cleaning device that can effectively clean the inside of the tank.

[0006] This invention provides a tank spraying and stirring self-cleaning device, comprising: The tank body has an internal mixing space. A rotating component extends partially into the mixing space and can rotate relative to the tank body; A stirring assembly is disposed on the portion of the rotating assembly that extends into the stirring and mixing space; An air jet assembly, fixed to the end of the rotating assembly that extends into the mixing space and faces the bottom of the tank, is used to jet air towards the bottom of the tank; and The spray assembly includes a liquid supply component and a spray component. The liquid supply component is fixed to the outside of the tank body, and the spray component is slidably sleeved on the part of the rotating assembly that extends into the mixing space and is connected to the liquid supply component through a pipe for spraying cleaning liquid onto the inner wall of the tank body.

[0007] In other embodiments, the rotating assembly includes a rotating rod and a rotating drive component. The rotating drive component is fixed to the top of the tank. One end of the rotating rod is rotatably connected to the rotating drive component, and the other end extends into the tank. The stirring assembly and the spraying component are connected to the rotating rod, and the jetting assembly is fixed to the end of the rotating rod located inside the tank.

[0008] In other embodiments, the jet assembly includes an external air supply component, an internal air supply pipe, and a jet component. The external air supply component is fixed to the outside of the tank body. One end of the internal air supply pipe is connected to the external air supply component, and the other end is connected to the jet component. The jet component is fixed to one end of the rotating rod located inside the tank body.

[0009] In other embodiments, the external air supply component includes an external air source and an air filter. The outlet of the external air source is connected to the inlet of the air filter via a pipe, and the outlet of the air filter is connected to the internal air supply pipe via a swivel joint.

[0010] In other embodiments, the liquid supply component includes an external water source, a booster pump, a water pressure sensor, and a retractable tube. The outlet of the external water source is connected to the inlet of the booster pump via a pipe. The outlet of the booster pump is connected to one end of the water pressure sensor via a pipe. The other end of the water pressure sensor is connected to one end of the retractable tube. The other end of the retractable tube extends into the tank and is connected to the spray component.

[0011] In other embodiments, the spraying component includes a second lifting track, a second slider, a ring pipe, and a plurality of spray heads. The second lifting track is fixed on the outer wall of the rotating rod. The second slider is slidably connected to the second lifting track and can slide along the second lifting track and stop at any position of its sliding stroke. The ring pipe is fixed on the second slider and communicates with the liquid supply component. The plurality of spray heads are embedded in the ring pipe.

[0012] In other embodiments, the stirring assembly includes a first lifting member and a plurality of stirring members. The first lifting member is fixed on the rotating rod and has a plurality of first lifting ends that can be actively raised and lowered relative to the rotating rod. The stirring members are fixed on the first lifting ends.

[0013] In other embodiments, the first lifting member includes a first lifting track and a plurality of first sliders. The first lifting track is fixed on the outer wall of the rotating rod, and the plurality of first sliders are slidably connected to the first lifting track, enabling them to slide along the first lifting track and stop at any position of their sliding stroke. The stirring member is fixed in correspondence with each of the first sliders.

[0014] In other embodiments, a liquid level sensor and a control module are provided on the inner wall of the tank. The liquid level sensor is used to detect the liquid level height in the tank. The control module is electrically connected to the liquid level sensor and the first lifting component, and can drive the first lifting component to move according to the detection result of the liquid level sensor.

[0015] In other embodiments, an image sensor is provided on the inner wall of the tank. The image sensor, the second slider, and the control module are electrically connected. The image sensor captures an image of the material residue on the inner wall of the tank. The control module receives the image captured by the image sensor, identifies it, determines the location of the material residue, and drives the second slider to move along the second lifting track.

[0016] The beneficial effects of this invention are as follows: This invention includes a tank, a rotating assembly, a stirring assembly, a jetting assembly, and a spraying assembly. The tank contains a mixing space. The rotating assembly is fixed to the tank, extending partially into the mixing space and rotatable relative to the tank. The stirring assembly is located on the portion of the rotating assembly extending into the mixing space. The jetting assembly is fixed to the end of the rotating assembly extending into the mixing space and facing the bottom of the tank, for jetting air towards the bottom of the tank. The spraying assembly includes a liquid supply component and a spraying component. The liquid supply component is fixed to the outside of the tank. The spraying component is slidably fitted onto the portion of the rotating assembly extending into the mixing space and connected to the liquid supply component via a pipe, for spraying cleaning liquid onto the inner wall of the tank. The jetting assembly jets air towards the bottom of the tank to initially clean any residual slurry. The spraying component moves up and down along the portion of the rotating assembly extending into the mixing space, rotating and cleaning the inner wall of the tank section by section, thereby ensuring the inner wall of the tank is clean and intact. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0018] Figure 1 This is a schematic diagram of the tank spraying and stirring self-cleaning device in the present invention; Wherein: 1-tank body; 2-Rotating assembly, 21-Rotating rod, 22-Rotating drive component; 3-Stirring assembly, 31-First lifting component, 311-First lifting track, 312-First slider, 32-Stirring component; 4-Jet assembly, 41-External air supply component, 411-External air source, 412-Air filter, 42-Internal air supply pipe, 43-Jet assembly, 431-Air nozzle; 5-Spray assembly; 51-Liquid supply component; 511-External water source; 512-Boost pump; 513-Water pressure sensor; 514-Extendable pipe; 52-Spray assembly; 521-Second lifting track; 522-Second slider; 523-Ring pipe; 524-Spray head.

[0019] 6-Level sensor, 7-Control module, 8-Image sensor. Detailed Implementation

[0020] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0021] like Figure 1 As shown, an embodiment of the present invention provides a tank spraying and stirring self-cleaning device, which includes: a tank 1, a rotating assembly 2, a stirring assembly 3, a jetting assembly 4, and a spraying assembly 5. A stirring and mixing space is formed inside the tank 1. The rotating assembly 2 is fixed on the tank 1, and a portion of the rotating assembly 2 extends into the stirring and mixing space and can rotate relative to the tank 1. The stirring assembly 3 is disposed on the portion of the rotating assembly 2 that extends into the stirring and mixing space. The jetting assembly 4 is fixed to the end of the rotating assembly 2 that extends into the stirring and mixing space and faces the bottom of the tank 1, for spraying jets onto the bottom of the tank 1. The spraying assembly 5 includes a liquid supply component 51 and a spraying component 52. The liquid supply component 51 is fixed to the outside of the tank 1. The spraying component 52 is slidably sleeved on the portion of the rotating assembly 2 that extends into the stirring and mixing space and is connected to the liquid supply component 51 through a pipe, for spraying cleaning liquid onto the inner wall of the tank 1.

[0022] In this invention, an air jet assembly 4 and a spray assembly 5 are provided. The air jet assembly 4 is used to spray air onto the bottom of the tank 1 to preliminarily clean the slurry remaining at the bottom of the tank. The spray assembly 52 moves up and down along the part of the rotating assembly 2 that extends into the mixing space to perform rotational cleaning of the inner wall of the tank 1, thereby ensuring that the inner wall of the tank 1 is clean and intact.

[0023] Specifically, the tank 1 has a liquid inlet at the top and a liquid outlet at the bottom.

[0024] Specifically, the rotating assembly 2 includes a rotating rod 21 and a rotating drive component 22. The rotating drive component 22 is fixed to the top of the tank body 1. One end of the rotating rod 21 is rotatably connected to the rotating drive component 22, and the other end extends into the tank body 1. The stirring assembly 3 and the spraying component 52 are connected to the rotating rod 21. The jetting assembly 4 is fixed to the end of the rotating rod 21 located inside the tank body 1.

[0025] In this embodiment, the rotation drive 22 is a motor, which drives the rotating rod 21 to rotate, thereby driving the stirring assembly 3, the spraying component 52 and the jetting component 4 to rotate relative to the tank 1.

[0026] Specifically, the stirring assembly 3 includes a first lifting member 31 and a plurality of stirring members 32. The first lifting member 31 is fixed to the rotating rod 21 and has a plurality of first lifting ends that can be actively raised and lowered relative to the rotating rod 21. The stirring members 32 are fixed to the first lifting ends. When stirring, the spacing between the stirring members 32 can be adjusted as needed to achieve a better stirring effect.

[0027] Furthermore, a liquid level sensor 6 and a control module 7 are provided on the inner wall of the tank 1. The liquid level sensor 6 is used to detect the liquid level height in the tank 1. The control module is electrically connected to the liquid level sensor 6 and the first lifting component 31. It can drive the first lifting component 31 to move according to the detection result of the liquid level sensor 6, and adjust the corresponding height of the stirring component 32 to ensure the stirring effect.

[0028] Furthermore, the first lifting member 31 includes a first lifting track 311 and a plurality of first sliders 312. The first lifting track 311 is fixed to the outer wall of the rotating rod 21, and the plurality of first sliders 312 are slidably connected to the first lifting track 311, enabling them to slide along the first lifting track 311 and stop at any position within their sliding stroke. The stirring member 32 is fixedly corresponding to each of the first sliders 312. In use, each of the first sliders 312 slides along the first lifting track 311 to adjust the height of each of the stirring members 32 and the gap between adjacent stirring members 32.

[0029] Furthermore, each of the first sliders 312 is spaced apart on the first lifting track 311, and a limiting protrusion is provided between the first sliders 312. A sliding area is formed between adjacent limiting protrusions to limit the sliding stroke of the first sliders 312. The purpose of this arrangement is to: 1. avoid interference between the first sliders 312; 2. limit the stroke of the first sliders 312 to facilitate the arrangement of wires.

[0030] Specifically, the jet assembly 4 includes an external air supply component 41, an internal air supply pipe 42, and a jet component 43. The external air supply component 41 is fixed to the outside of the tank body 1. One end of the internal air supply pipe 42 is connected to the external air supply component 41, and the other end is connected to the jet component 43. The jet component 43 is fixed to the end of the rotating rod 21 located inside the tank body 1.

[0031] Furthermore, the external air supply component 41 includes an external air source 411 and an air filter 412. The outlet of the external air source 411 is connected to the inlet of the air filter 412 via a pipe, and the outlet of the air filter 412 is connected to the internal air supply pipe 42 via a swivel joint. The gas supplied by the external air source 411 is filtered by the air filter 412 before being sprayed into the tank 1, preventing the material inside the tank 1 from being contaminated by impurities in the air.

[0032] Furthermore, the internal air supply pipe 42 is built inside the rotating rod 21.

[0033] Furthermore, the jet component 43 includes a branch pipe and a plurality of air nozzles 431. The branch pipe is fixed to the rotating rod 21 and communicates with the internal air supply pipe 42. The air nozzles 431 are disposed on the branch pipe and communicate with the internal air supply pipe 42 through the branch pipe.

[0034] Specifically, the liquid supply component 51 includes an external water source 511, a booster pump 512, a water pressure sensor 513, and a retractable pipe 514. The outlet of the external water source 511 is connected to the inlet of the booster pump 512 via a pipe. The outlet of the booster pump 512 is connected to one end of the water pressure sensor 513 via a pipe. The other end of the water pressure sensor 513 is connected to one end of the retractable pipe 514. The other end of the retractable pipe 514 extends into the tank 1 and is connected to the spray component 52. In use, the booster pump 512 can be adjusted as needed to adjust the water pressure sprayed by the spray component 52.

[0035] Specifically, the spraying component 52 includes a second lifting track 521, a second slider 522, a ring pipe 523, and a plurality of spray heads 524. The second lifting track 521 is fixed to the outer wall of the rotating rod 21. The second slider 522 is slidably connected to the second lifting track 521, and can slide along the second lifting track 521 and stop at any position of its sliding stroke. The ring pipe 523 is fixed to the second slider 522 and communicates with the liquid supply component 51. The plurality of spray heads 524 are embedded in the ring pipe 523. The second slider 522 slides along the second lifting track 521, driving the ring pipe 523 to rise and fall within the tank 1, thereby achieving layer-by-layer spraying within the tank 1 and ensuring a cleaning effect.

[0036] In some embodiments, the second lifting track 521 is integrally formed with the first lifting track 311. The advantage of this is that the manufacturing difficulty of the outer surface of the rotating rod 21 is reduced and the cost is reduced. However, the second slider 522 and the first slider 312 may interfere with each other.

[0037] Therefore, in this embodiment, the second lifting rail 521 and the first lifting rail 311 are respectively set at different positions of the rotating rod 21 so that the second slider 522 and the first slider 312 are separated from each other to avoid mutual interference. On the other hand, it enables the second slider 522 and the first slider 312 to have a longer stroke, so that the spray cleaning range inside the tank 1 is more comprehensive.

[0038] It should also be noted that, in some embodiments, the first slider 312 and the second slider 522 may be electrically driven, which supplies power to the first slider 312 and the second slider 522 through wires, enabling them to move autonomously along the first lifting track 311 and the second lifting track 521; while in other feasible embodiments, the first slider 312 and the second slider 522 may be magnetically driven, with a liftable magnet inside the rotating rod 21, and the first slider 312 and the second slider 522 being made of magnetic material, moving along the first lifting track 311 and the second lifting track 521 under the drive of the magnet.

[0039] In some feasible embodiments, an image sensor 8 is provided on the inner wall of the tank 1. The image sensor 8, the second slider 522, and the control module 7 are electrically connected. The image sensor 8 captures images of material residue on the inner wall of the tank 1. The control module 7 receives and identifies the images captured by the image sensor 8, determines the location of the material residue, and drives the second slider 522 to move along the second lifting track 521 to the corresponding position for localized and precise spray cleaning. This improves the cleaning effect while saving a lot of water resources and reducing cleaning costs.

[0040] The main working principle of this invention is as follows: (1) During stirring, in the initial state, all stirring components 32 are compactly arranged along the first lifting track 311. Inside the tank, the rotating rod 21 serves as the core support, and all stirring components 32 rotate along the axis to achieve stirring, while the first lifting component 31 drives the stirring components 32 up and down. When stirring is completed, all stirring components 32 are compactly and neatly arranged, presenting a highly compact storage form. This setting not only effectively saves space inside the tank and avoids the paddle blades occupying the internal space of the tank when not in operation, but also facilitates the overall cleaning and maintenance of the stirring components 32. At the same time, a liquid level sensor 6 is installed outside the tank. When the liquid level reaches a certain height, the sensor signal is transmitted to the control module 7, triggering the corresponding stirring component 32 to lift. When it is necessary to separate multiple stirring components 32, the control module 7 drives the first lifting component 31 to move, so that each stirring component 32 gradually unfolds along the rotating rod 21, forming a layered distribution pattern.

[0041] In addition, the tank 1 is equipped with an air jet assembly 4, which sprays air into the tank 1 from the air nozzle 431 located at the bottom of the rotating rod 21, so that the compressed air can fully contact the slurry at the bottom, thereby achieving a synergistic stirring effect with the stirring component 32, further effectively preventing the slurry from settling and agglomerating, and improving the stirring and mixing effect.

[0042] (2) During cleaning, firstly, by turning on the jet assembly 4, the air nozzle at the bottom of the rotating rod 21 sprays air into the tank 1, and the compressed air performs preliminary cleaning of the slurry residue at the bottom of the tank. Secondly, the image sensor 8 monitors the slurry residue. Based on the data fed back by the image sensor 8, the super control module 7 drives the second slider 522 to adjust the position of the ring pipe 523. When a large amount of slurry residue is detected in a certain area, the control module 7 can control the booster pump to increase the spraying time and pressure, thereby achieving precise spraying to prevent slurry residue.

[0043] The beneficial effects of this invention are: This invention includes a tank, a rotating assembly, a stirring assembly, a jetting assembly, and a spraying assembly. The tank contains a mixing space. The rotating assembly is fixed to the tank, extending partially into the mixing space and rotatable relative to the tank. The stirring assembly is located on the portion of the rotating assembly extending into the mixing space. The jetting assembly is fixed to the end of the rotating assembly extending into the mixing space and facing the bottom of the tank, for jetting air towards the bottom of the tank. The spraying assembly includes a liquid supply component and a spraying component. The liquid supply component is fixed to the outside of the tank. The spraying component is slidably fitted onto the portion of the rotating assembly extending into the mixing space and connected to the liquid supply component via a pipe, for spraying cleaning liquid onto the inner wall of the tank. The jetting assembly jets air towards the bottom of the tank to initially clean any residual slurry. The spraying component moves up and down along the portion of the rotating assembly extending into the mixing space, rotating and cleaning the inner wall of the tank section by section, thereby ensuring the inner wall of the tank is clean and intact.

[0044] In the description of this application, it should be noted that the terms "upper" and "lower," etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this application. Unless otherwise expressly specified and limited, the terms "installed," "connected," and "linked" 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; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0045] It should be noted that in this application, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A tank spraying and stirring self-cleaning device, characterized in that, include: The tank body has an internal mixing space. A rotating component extends partially into the mixing space and can rotate relative to the tank body; A stirring assembly is disposed on the portion of the rotating assembly that extends into the stirring and mixing space; An air jet assembly, fixed to the end of the rotating assembly that extends into the mixing space and faces the bottom of the tank, is used to jet air into the bottom of the tank; as well as A spraying assembly includes a liquid supply component and a spraying component. The liquid supply component is fixed to the outside of the tank body, and the spraying component is slidably sleeved on the part of the rotating assembly that extends into the mixing space and is connected to the liquid supply component through a pipe for spraying cleaning liquid onto the inner wall of the tank body. The rotating assembly includes a rotating rod and a rotating drive component. The rotating drive component is fixed to the top of the tank. One end of the rotating rod is rotatably connected to the rotating drive component, and the other end extends into the tank. The stirring assembly and the spraying component are connected to the rotating rod. The jetting assembly is fixed to the end of the rotating rod located inside the tank. The spraying component includes a second lifting track, a second slider, a ring pipe, and a plurality of spray heads. The second lifting track is fixed on the outer wall of the rotating rod. The second slider is slidably connected to the second lifting track and can slide along the second lifting track and stop at any position of its sliding stroke. The ring pipe is fixed on the second slider and communicates with the liquid supply component. The plurality of spray heads are embedded in the ring pipe. The stirring assembly includes a first lifting member and several stirring members. The first lifting member is fixed on the rotating rod and has multiple first lifting ends that can be actively raised and lowered relative to the rotating rod. The stirring members are fixed on the first lifting ends. The first lifting component includes a first lifting track and a plurality of first sliders. The first lifting track is fixed on the outer wall of the rotating rod. The plurality of first sliders are slidably connected to the first lifting track and can slide along the first lifting track and stop at any position of its sliding stroke. The stirring component is fixed in correspondence with the first sliders one by one. The inner wall of the tank is equipped with a liquid level sensor and a control module. The liquid level sensor is used to detect the liquid level height in the tank. The control module is electrically connected to the liquid level sensor and the first lifting component, and can drive the first lifting component to move according to the detection result of the liquid level sensor. An image sensor is installed on the inner wall of the tank. The image sensor, the second slider, and the control module are electrically connected. The image sensor captures an image of the material residue on the inner wall of the tank. The control module receives the image captured by the image sensor, identifies it, determines the location of the material residue, and drives the second slider to move along the second lifting track.

2. The tank spraying and stirring self-cleaning device as described in claim 1, characterized in that, The jet assembly includes an external air supply component, an internal air supply pipe, and a jet component. The external air supply component is fixed to the outside of the tank body. One end of the internal air supply pipe is connected to the external air supply component, and the other end is connected to the jet component. The jet component is fixed to one end of the rotating rod located inside the tank body.

3. The tank spraying and stirring self-cleaning device as described in claim 2, characterized in that, The external air supply component includes an external air source and an air filter. The outlet of the external air source is connected to the inlet of the air filter through a pipe, and the outlet of the air filter is connected to the internal air supply pipe through a swivel joint.

4. The tank spraying and stirring self-cleaning device as described in claim 1, characterized in that, The liquid supply component includes an external water source, a booster pump, a water pressure sensor, and a retractable tube. The outlet of the external water source is connected to the inlet of the booster pump through a pipe. The outlet of the booster pump is connected to one end of the water pressure sensor through a pipe. The other end of the water pressure sensor is connected to one end of the retractable tube. The other end of the retractable tube extends into the tank and is connected to the spray component.

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