Battery powder leaching reaction device

Abstract

The utility model provides a battery powder leaching reaction device. The battery powder leaching reaction device comprises a reaction container, a stirring mechanism and an inflation mechanism, and the reaction container is provided with a leaching channel; the stirring mechanism comprises a driving assembly and a stirring paddle assembly, the driving assembly is arranged at the top of the reaction container, the stirring paddle assembly comprises a rotating shaft, a stirring paddle and a bubble breaking plate, the rotating shaft is connected to the output end of the driving assembly and arranged in the leaching channel, the stirring paddle is connected to the rotating shaft, and the bubble breaking plate is connected to the stirring paddle; the inflation mechanism comprises a lifting assembly and an inflation assembly, the lifting assembly is arranged on the outer side of the reaction container, the inflation assembly comprises an air inlet pipe, a connecting pipe and an air outlet pipe which are sequentially communicated, and the connecting pipe is fixed to the lifting end of the lifting assembly. Air flow purges bubble suspended solids from the air outlet pipe to collide with the stirring paddle and the bubble crushing plate to be crushed, the air outlet pipe can lift to purge different positions of the leaching channel, so that the leaching liquid and the battery powder are uniformly mixed, the reaction rate is increased, and the air flow can take away heat in the leaching liquid.

Description

Technical Field

[0001] The present disclosure relates to the technical field of battery material recycling, and in particular to a battery powder leaching reaction device. Background Art

[0002] In the process of recycling waste lithium iron phosphate battery powder, the high-value lithium metal in the battery powder is preferentially extracted, and iron and phosphorus are left in the leaching residue, and then resource extraction is carried out to prepare iron phosphate. The selective lithium extraction process usually uses sulfuric acid and hydrogen peroxide to leach the battery powder. Since the battery powder contains aluminum, graphite and other substances, a large number of bubbles will be generated during the leaching process. Graphite with a lower density will be suspended on the surface of the liquid in the reaction tank to inhibit the emergence of bubbles. In the process of bubble escape, it is very easy to drive graphite to form bubble suspension, which makes it difficult for bubbles to grow and burst during the rising process. As the entire leaching volume continues to increase, the bubble suspension on the surface continues to increase and rise.

[0003] At present, the reaction tank is mostly stirred by stirring paddles arranged in two or three layers at intervals. When the bubble suspension is in the middle position of the stirring paddle layer, it is difficult for the stirring paddle to contact and break the bubble suspension. In the wet oxidation leaching and lithium extraction stage, it is necessary to control the rate of hydrogen peroxide and air or oxygen introduction. Due to the limitation of the concentration of each ion in the leachate, it is difficult to use a large amount of water for flushing and defoaming. A lot of time is required to wait for defoaming. In addition, if the operation and control are improper in the process of controlling the introduction of hydrogen peroxide and air or oxygen, it is easy to cause bubbling in the tank, resulting in waste of raw materials and extension of the production cycle. At the same time, since the leaching process generates heat, the bubble suspension on the top of the reaction tank hinders the heat dissipation of the entire system, causing the temperature of the reaction process to rise continuously, affecting the reaction efficiency and easily generating dihydrate iron phosphate precipitation, affecting the recovery rate of iron phosphate.

[0004] As disclosed in the technical solution of the reference document CN201220247537.4, a lifting stirring device for a leaching tank includes a longitudinal stirring shaft, a control motor and a bracket arranged at one end of the stirring shaft, and a stirring blade arranged at the other end of the stirring shaft perpendicular to the axial direction of the stirring shaft, wherein the stirring shaft is composed of a driving shaft and a driven shaft coaxially connected by a coupling, and the stirring shaft is also connected to an axially arranged lifting cylinder. This solution uses sulfuric acid and hydrogen peroxide to leach battery powder, but there is still a problem that the stirring blade is difficult to contact and break the bubble suspension, and the heat dissipation effect of the battery powder leaching process is not good. Utility Model Content

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a battery powder leaching reaction device that mixes evenly, accelerates heat dissipation and improves reaction efficiency.

[0006] The purpose of this disclosure is achieved through the following technical solutions:

[0007] A battery powder leaching reaction device comprises a reaction container, a stirring mechanism and an aeration mechanism, wherein the reaction container is provided with a feed inlet, a leaching channel and a discharge port which are connected in sequence;

[0008] The stirring mechanism includes a driving assembly and a stirring paddle assembly, wherein the driving assembly is arranged at the top of the reaction container, the stirring paddle assembly includes a rotating shaft, a stirring paddle and a foam crushing plate, the rotating shaft is connected to the output end of the driving assembly, the rotating shaft is arranged in the leaching channel, the stirring paddle is connected to the rotating shaft, and the foam crushing plate is connected to the stirring paddle;

[0009] The inflation mechanism includes a lifting component and an inflation component, the lifting component is arranged on the outside of the reaction container, the inflation component includes an air inlet pipe, a connecting pipe and an air outlet pipe, the connecting pipe is fixed to the lifting end of the lifting component, one end of the connecting pipe is connected to the air inlet pipe, the air outlet pipe is connected to the other end of the connecting pipe, the air outlet pipe is arranged in the leaching channel, and the air outlet pipe is provided with an air outlet.

[0010] In one embodiment, the gas outlet pipe is an arc-shaped structure, and the gas outlet pipe extends along the circumference of the reaction container.

[0011] In one embodiment, the air outlet pipe has a plurality of air outlets, and the plurality of air outlets are arranged at intervals along the extension direction of the air outlet pipe.

[0012] In one embodiment, there are multiple inflation mechanisms, and the multiple inflation mechanisms are arranged at intervals along the circumference of the reaction container.

[0013] In one embodiment, the lifting assembly includes a lifting rod, a lifting shell, a threaded rod, a screw bearing, a worm wheel, a worm and a lifting motor. The lifting shell is arranged outside the reaction container, the lifting shell is provided with a lifting channel, the lifting rod is passed through the lifting channel, one end of the lifting rod is connected to the connecting pipe, the other end of the lifting rod is provided with a threaded channel, the threaded rod is threadedly connected to the threaded channel, the screw bearing is clamped in the lifting channel, the screw bearing is sleeved on the threaded rod, the worm wheel is connected to the threaded rod, and the output end of the lifting motor is meshed with the worm wheel through a worm.

[0014] In one embodiment, the lifting assembly further includes a fixing member, the lifting rod is provided with a mounting through hole and a threaded fixing hole which are interconnected, the connecting pipe is passed through the mounting through hole, and the fixing member is arranged in the threaded fixing hole.

[0015] In one embodiment, the stirring paddle also includes an upper stirring blade and a lower stirring blade, the lower stirring blade is connected to the rotating shaft, the lower stirring blade is arranged below the upper stirring blade, one end of the bubble crushing plate is connected to the upper stirring blade, and the other end of the bubble crushing plate is connected to the lower stirring blade.

[0016] In one embodiment, there are multiple bubble crushing plates, and the multiple bubble crushing plates are arranged in parallel.

[0017] In one embodiment, the upper stirring blade is tiltedly disposed on the rotating shaft, and the lower stirring blade is tiltedly disposed on the rotating shaft.

[0018] In one embodiment, the driving assembly includes a stirring motor and a stirring bracket, the stirring bracket is connected to the top of the reaction container, the stirring motor is installed on the stirring bracket, and the rotating shaft is connected to the output end of the stirring motor.

[0019] Compared with the prior art, the present invention has at least the following advantages:

[0020] 1. The battery powder leaching reaction device described above introduces airflow into the air inlet pipe, the connecting pipe and the air outlet pipe. The airflow sweeps the bubble suspension from the air outlet to move quickly. The driving component drives the stirring paddle and the bubble breaking plate to rotate and collide with the bubble suspension and the bubbles, so that the bubble suspension is broken and the bubbles are broken. The leaching liquid and the battery powder are mixed more evenly, the reaction rate is improved, and the defoaming speed of the bubbles is accelerated, and the bubbling phenomenon is avoided;

[0021] 2. The lifting component drives the connecting pipe and the air outlet pipe to rise and fall, so that the airflow sweeps the bubble suspension at different positions in the leaching channel from the outlet of the air outlet pipe, thereby making the mixing effect of the leaching liquid and the battery powder better and improving the reaction efficiency of the leaching liquid and the battery powder;

[0022] 3. The leachate and battery powder react to generate heat. The airflow continuously blows the leachate and battery powder from the outlet, so that the airflow continuously takes away the heat in the leachate, so that the leachate and battery powder maintain a suitable temperature for reaction, thereby improving the reaction efficiency of the leachate and battery powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present disclosure and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1This is a schematic structural diagram of a battery powder leaching reaction device according to an embodiment;

[0025] Figure 2 for Figure 1 The schematic diagram of the structure of the battery powder leaching reaction device after lifting and lowering is shown;

[0026] Figure 3 for Figure 2 A partial enlarged view of the battery powder leaching reaction device at position A shown;

[0027] Figure 4 for Figure 1 A schematic diagram of the partial structure of the stirring paddle assembly is shown.

[0028] Reference numerals: 10-battery powder leaching reaction device; 100-reaction container; 101-feeding port; 102-leaching channel; 103-discharging port; 200-stirring mechanism; 210-driving assembly; 211-stirring motor; 212-stirring support; 220-stirring paddle assembly; 221-rotating shaft; 222-stirring paddle; 2221-upper stirring paddle; 2222-lower stirring paddle; 223-foam crushing plate; 300-inflating mechanism; 310 -lifting assembly; 3101-lifting channel; 3102-threaded channel; 3103-mounting through hole; 3104-threaded fixing hole; 311-lifting rod; 312-lifting shell; 313-threaded rod; 314-screw bearing; 315-worm gear; 316-worm; 317-lifting motor; 318-fixing part; 320-inflating assembly; 321-inlet pipe; 322-connecting pipe; 323-outlet pipe; 3201-outlet. DETAILED DESCRIPTION

[0029] In order to facilitate the understanding of the present disclosure, the present disclosure will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present disclosure are given in the drawings. However, the present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present disclosure more thoroughly and comprehensively understood.

[0030] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present disclosure. The terms used herein in the specification of the present disclosure are only for the purpose of describing specific embodiments and are not intended to limit the present disclosure. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0032] In order to better understand the technical solutions and beneficial effects of the present invention, the present invention is further described in detail below in conjunction with specific embodiments:

[0033] like Figure 1 and Figure 2 As shown, a battery powder leaching reaction device 10 of an embodiment of the present disclosure includes a reaction vessel 100, a stirring mechanism 200 and an aeration mechanism 300. The reaction vessel 100 is provided with a feed port 101, a leaching channel 102 and a discharge port 103 which are connected in sequence. The battery powder and the leaching liquid are put into the leaching channel 102 from the feed port 101. The stirring mechanism 200 includes a driving component 210 and a stirring paddle component 220. The driving component 210 is arranged at the top of the reaction vessel 100. The stirring paddle assembly 220 includes a rotating shaft 221, a stirring paddle 222 and a bubble crushing plate 223. The rotating shaft 221 is connected to the output end of the driving assembly 210. The rotating shaft 221 is arranged in the leaching channel 102. The stirring paddle 222 is connected to the rotating shaft 221. The bubble crushing plate 223 is connected to the stirring paddle 222. When the driving assembly 210 is started, the driving assembly 210 can drive the rotating shaft 221 to rotate, so that the stirring paddle 222 and the bubble crushing plate 223 stir the material in the leaching channel 102.

[0034] Furthermore, the inflation mechanism 300 includes a lifting component 310 and an inflation component 320. The lifting component 310 is arranged on the outside of the reaction container 100. The inflation component 320 includes an air inlet pipe 321, a connecting pipe 322 and an air outlet pipe 323. The connecting pipe 322 is fixed to the lifting end of the lifting component 310. The lifting component 310 is used to control the lifting and lowering of the connecting pipe 322. One end of the connecting pipe 322 is connected to the air inlet pipe 321, and the air outlet pipe 323 is connected to the other end of the connecting pipe 322. The air outlet pipe 323 is arranged in the leaching channel 102. The air outlet pipe 323 is provided with an air outlet 3201. One end of the air inlet pipe 321 is connected to an air pump. The air pump can control the airflow to enter the air inlet pipe 321. The airflow passes through the air inlet pipe 321, the connecting pipe 322 and the air outlet pipe 323 in sequence, so that the airflow is ejected from the air outlet 3201.

[0035] In this embodiment, battery powder and leachate are sequentially fed from the feed port 101. During the leaching process of the battery powder, the oxidant in the leachate reacts with the battery powder to generate a large amount of bubbles and heat, so that the insoluble matter of the battery powder in the leachate floats up to form a bubble suspension. After the air flow is introduced into the air inlet pipe 321, the air flow continuously sweeps the bubble suspension in the leachate from the air outlet 3201, thereby accelerating the crushing and separation of the bubble suspension. The driving component 210 drives the stirring paddle 222 and the bubble crushing plate 223 to rotate, so that the stirring paddle 222 and the bubble crushing plate 223 continuously collide with the bubble suspension, so that the bubbles are separated from the suspension, and then the bubbles are collided and crushed, thereby accelerating the defoaming speed; the height of the connecting pipe 322 is adjusted by lifting and lowering the lifting component 310, so that the connecting pipe 322 drives the air outlet pipe 323 to rise and fall, so that the leachate and battery powder at different positions are evenly mixed, and the air flow continuously enters the leachate from the air outlet 3201, so that the air flow continuously takes away the heat in the leachate.

[0036] The battery powder leaching reaction device 10 is provided with airflow into the air inlet pipe 321, the connecting pipe 322 and the air outlet pipe 323. The airflow sweeps the bubble suspension from the air outlet 3201 to move rapidly. The driving component 210 drives the stirring paddle 222 and the bubble crushing plate 223 to rotate and collide with the bubble suspension and the bubbles, so that the bubble suspension is broken and the bubbles are broken. The leaching liquid and the battery powder are mixed more evenly, the reaction rate is improved, and the defoaming speed of the bubbles is accelerated, and the bubbling phenomenon is avoided. The lifting component 310 drives the connecting pipe 32 2 and the air outlet pipe 323 are raised and lowered, so that the air flow clears the bubble suspension at different positions in the leaching channel 102 from the outlet port 3201 of the air outlet pipe 323, so that the mixing effect of the leachate and the battery powder is better, and the reaction efficiency of the leachate and the battery powder is improved; the leachate and the battery powder react to generate heat, and the air flow continuously clears the leachate and the battery powder from the air outlet 3201, so that the air flow continuously takes away the heat in the leachate, so that the leachate and the battery powder maintain a suitable temperature for reaction, thereby improving the reaction efficiency of the leachate and the battery powder.

[0037] like Figure 1 As shown, in one embodiment, the gas outlet pipe 323 is an arc-shaped structure, and the gas outlet pipe 323 extends along the circumference of the reaction container 100. In this embodiment, the gas outlet 3201 of the gas outlet pipe 323 is distributed more evenly in the leaching channel 102, so that the bubble suspension at each position along the circumference of the leaching channel 102 is fully purged, so that the bubble suspension at each position in the leaching liquid is fully broken.

[0038] like Figure 1As shown, in one embodiment, the number of the gas outlets 3201 of the gas outlet pipe 323 is multiple, and the multiple gas outlets 3201 are arranged at intervals along the extension direction of the gas outlet pipe 323. In this embodiment, the multiple gas outlets 3201 can increase the flow rate of the airflow, so that the airflow for sweeping the bubble suspension is increased, thereby accelerating the movement and breaking speed of the bubble suspension, and further accelerating the heat dissipation speed of the airflow to the leachate.

[0039] like Figure 1 As shown, in one embodiment, the number of the gas filling mechanism 300 is multiple, and the multiple gas filling mechanisms 300 are arranged at intervals along the circumference of the reaction container 100. In this embodiment, the multiple gas outlet pipes 323 of the gas filling mechanism 300 are sequentially arranged in the reaction container 100, so that the circumference of the leaching channel 102 of the reaction container 100 is provided with gas outlets 3201, and each lifting assembly 310 can drive the corresponding gas outlet pipe 323 to move to different heights, so that each position of the airflow leaching channel 102 can fully purge the bubble suspension in the leaching channel 102, so that the airflow purging and breaking the bubble suspension has a better effect, thereby accelerating the breaking speed of the bubble suspension.

[0040] like Figure 1 and Figure 2 As shown, in one embodiment, the lifting assembly 310 includes a lifting rod 311, a lifting shell 312, a threaded rod 313, a screw bearing 314, a worm wheel 315, a worm 316 and a lifting motor 317. The lifting shell 312 is arranged outside the reaction container 100, and the lifting shell 312 is provided with a lifting channel 3101. The lifting rod 311 is penetrated by the lifting channel 3101. One end of the lifting rod 311 is connected to the connecting pipe 322, and the other end of the lifting rod 311 is provided with a threaded channel 3102. The threaded rod 313 is threadedly connected to the threaded channel 3102, the screw bearing 314 is clamped in the lifting channel 3101, the screw bearing 314 is movably sleeved on the threaded rod 313, the worm wheel 315 is connected to the threaded rod 313, and the output end of the lifting motor 317 is meshed with the worm wheel 315 through the worm 316. In this embodiment, the output end of the lifting motor 317 drives the worm 316 to rotate, so that the worm 316 drives the worm wheel 315 to rotate, and the worm wheel 315 drives the threaded rod 313 to rotate. When the threaded rod 313 rotates, the threaded lifting rod 311 is lifted and lowered, so that the connecting pipe 322 drives the air outlet pipe 323 to lift and lower, and the height of the air outlet 3201 is adjusted, so that the suspended matter at different heights in the leaching channel 102 can be affected by the airflow, so that the battery powder and the leachate are mixed more evenly, and the reaction of the battery powder and the leachate is more sufficient.

[0041] like Figure 2 and Figure 3As shown, in one embodiment, the lifting assembly 310 further includes a fixing member 318, the lifting rod 311 is provided with a mounting through hole 3103 and a threaded fixing hole 3104 which are interconnected, the connecting pipe 322 is passed through the mounting through hole 3103, and the fixing member 318 is arranged in the threaded fixing hole 3104. In this embodiment, the fixing member 318 can lock the connecting pipe 322 by threading, and can also loosen the fixing member 318 to adjust the position of the lifting rod 311, thereby adjusting the height of the connecting pipe 322, so that the connecting pipe 322 can adapt to the leaching channels 102 of different depths, and at the same time, the connecting pipe 322 can be easily disassembled through the fixing member 318, thereby facilitating the maintenance of the connecting pipe 322.

[0042] like Figure 4 As shown, in one embodiment, the stirring paddle 222 further includes an upper stirring blade 2221 and a lower stirring blade 2222, the lower stirring blade 2222 is connected to the rotating shaft 221, and the lower stirring blade 2222 is arranged below the upper stirring blade 2221, one end of the bubble crushing plate 223 is connected to the upper stirring blade 2221, and the other end of the bubble crushing plate 223 is connected to the lower stirring blade 2222. In this embodiment, the upper stirring blade 2221 can stir the leachate above the leaching channel 102, and the lower stirring blade 2222 can stir the material below the leaching channel 102, so that the flow speed of the leachate at the upper and lower positions in the leaching channel 102 is faster, so that the leachate is mixed more evenly, and the effect of breaking the bubble suspension is further increased.

[0043] like Figure 1 As shown, in one embodiment, there are multiple bubble crushing plates 223, and the multiple bubble crushing plates 223 are arranged in parallel. In this embodiment, when the driving component 210 drives the multiple bubble crushing plates 223 to rotate, the multiple bubble crushing plates 223 can simultaneously shear the leachate in the leaching channel 102, so that the multiple bubble crushing plates 223 can collide with the bubble suspension at the same time, thereby accelerating the breaking speed of the bubble suspension and the bubbles, and reducing the defoaming time of the leachate.

[0044] like Figure 4 As shown, in one embodiment, the upper stirring blade 2221 is tilted on the rotating shaft 221, and the lower stirring blade 2222 is tilted on the rotating shaft 221. In this embodiment, an inclined angle is formed between the upper stirring blade 2221 and the lower stirring blade 2222, and the inclined angle is greater than 0, so that the upper stirring blade 2221 pushes the leachate to move in one direction when stirring, and the lower stirring blade 2222 pushes the leachate to move in another direction when stirring, so that the leachate flow directions at the upper and lower positions in the leach channel 102 are different, so that turbulence is formed in the leachate, and then the leachate and battery powder are mixed more fully.

[0045] like Figure 1As shown, in one embodiment, the driving assembly 210 includes a stirring motor 211 and a stirring bracket 212, the stirring bracket 212 is connected to the top of the reaction container 100, the stirring motor 211 is installed on the stirring bracket 212, and the rotating shaft 221 is connected to the output end of the stirring motor 211. In this embodiment, the stirring motor 211 is fixed on the stirring bracket 212, so that the stirring motor 211 runs more stably, and the stirring shaft 213 is located at the center of the reaction container 100, so that the stirring paddle 222 and the bubble crushing plate 223 evenly stir the leachate and the battery powder.

[0046] Compared with the prior art, the present invention has at least the following advantages:

[0047] 1. The battery powder leaching reaction device 10 is provided with airflow into the air inlet pipe 321, the connecting pipe 322 and the air outlet pipe 323. The airflow sweeps the bubble suspension from the air outlet 3201 to move rapidly. The driving assembly 210 drives the stirring paddle 222 and the bubble breaking plate 223 to rotate and collide with the bubble suspension and the bubbles, so that the bubble suspension is broken and the bubbles are broken. The leaching liquid and the battery powder are mixed more evenly, the reaction rate is improved, and the defoaming speed of the bubbles is accelerated, and the bubbling phenomenon is avoided.

[0048] 2. The lifting assembly 310 drives the connecting pipe 322 and the air outlet pipe 323 to rise and fall, so that the airflow clears the bubble suspension at different positions in the leaching channel 102 from the outlet port 3201 of the air outlet pipe 323, thereby making the mixing effect of the leachate and the battery powder better and improving the reaction efficiency of the leachate and the battery powder;

[0049] 3. The leachate and the battery powder react to generate heat, and the airflow continuously blows the leachate and the battery powder from the air outlet 3201, so that the airflow continuously takes away the heat in the leachate, so that the leachate and the battery powder maintain a suitable temperature for reaction, thereby improving the reaction efficiency of the leachate and the battery powder.

[0050] The above-mentioned embodiments only express several implementation methods of the present disclosure, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the disclosed patent. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present disclosure, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the disclosed patent shall be subject to the attached claims.

Claims

1. A battery powder leaching reaction device, characterized in that: The invention comprises a reaction container (100), a stirring mechanism (200) and an aeration mechanism (300), wherein the reaction container (100) is provided with a feed inlet (101), a leaching channel (102) and a discharge port (103) which are connected in sequence; The stirring mechanism (200) comprises a driving component (210) and a stirring paddle component (220), wherein the driving component (210) is arranged at the top of the reaction container (100), and the stirring paddle component (220) comprises a rotating shaft (221), a stirring paddle (222) and a bubble crushing plate (223), wherein the rotating shaft (221) is connected to the output end of the driving component (210), the rotating shaft (221) is arranged in the leaching channel (102), the stirring paddle (222) is connected to the rotating shaft (221), and the bubble crushing plate (223) is connected to the stirring paddle (222); The inflation mechanism (300) comprises a lifting component (310) and an inflation component (320); the lifting component (310) is arranged on the outside of the reaction container (100); the inflation component (320) comprises an air inlet pipe (321), a connecting pipe (322) and an air outlet pipe (323); the connecting pipe (322) is fixed to the lifting end of the lifting component (310); one end of the connecting pipe (322) is connected to the air inlet pipe (321); the air outlet pipe (323) is connected to the other end of the connecting pipe (322); the air outlet pipe (323) is arranged in the leaching channel (102); and the air outlet pipe (323) is provided with an air outlet (3201).

2. The battery powder leaching reaction device according to claim 1, characterized in that: The gas outlet pipe (323) is an arc-shaped structure, and the gas outlet pipe (323) extends along the circumference of the reaction container (100).

3. The battery powder leaching reaction device according to claim 2, characterized in that: The air outlet pipe (323) has a plurality of air outlets (3201), and the plurality of air outlets (3201) are arranged at intervals along the extension direction of the air outlet pipe (323).

4. The battery powder leaching reaction device according to claim 1, characterized in that: The number of the inflation mechanisms (300) is plural, and the plural inflation mechanisms (300) are arranged at intervals along the circumference of the reaction container (100).

5. The battery powder leaching reaction device according to claim 1, characterized in that: The lifting assembly (310) comprises a lifting rod (311), a lifting shell (312), a threaded rod (313), a screw bearing (314), a worm wheel (315), a worm (316) and a lifting motor (317). The lifting shell (312) is arranged outside the reaction container (100). The lifting shell (312) is provided with a lifting channel (3101). The lifting rod (311) is passed through the lifting channel (3101). One end of the lifting rod (311) is connected to the connecting pipe. (322), a threaded channel (3102) is provided at the other end of the lifting rod (311), the threaded rod (313) is threadedly connected to the threaded channel (3102), the screw bearing (314) is clamped in the lifting channel (3101), the screw bearing (314) is sleeved on the threaded rod (313), the worm gear (315) is connected to the threaded rod (313), and the output end of the lifting motor (317) is meshed with the worm gear (315) through the worm (316).

6. The battery powder leaching reaction device according to claim 5, characterized in that: The lifting assembly (310) further comprises a fixing member (318), the lifting rod (311) is provided with a mounting through hole (3103) and a threaded fixing hole (3104) which are interconnected, the connecting pipe (322) is passed through the mounting through hole (3103), and the fixing member (318) is arranged in the threaded fixing hole (3104).

7. The battery powder leaching reaction device according to claim 1, characterized in that: The stirring paddle (222) also includes an upper stirring blade (2221) and a lower stirring blade (2222), wherein the lower stirring blade (2222) is connected to the rotating shaft (221), and the lower stirring blade (2222) is arranged below the upper stirring blade (2221), one end of the bubble crushing plate (223) is connected to the upper stirring blade (2221), and the other end of the bubble crushing plate (223) is connected to the lower stirring blade (2222).

8. The battery powder leaching reaction device according to claim 7, characterized in that: The number of the bubble crushing plates (223) is multiple, and the multiple bubble crushing plates (223) are arranged in parallel.

9. The battery powder leaching reaction device according to claim 7, characterized in that: The upper stirring blade (2221) is arranged obliquely on the rotating shaft (221), and the lower stirring blade (2222) is arranged obliquely on the rotating shaft (221).

10. The battery powder leaching reaction device according to claim 1, characterized in that: The driving assembly (210) comprises a stirring motor (211) and a stirring support (212), wherein the stirring support (212) is connected to the top of the reaction container (100), the stirring motor (211) is mounted on the stirring support (212), and the rotating shaft (221) is connected to the output end of the stirring motor (211).

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