Lithium battery electrolyte treatment device

Abstract

The utility model discloses a lithium battery electrolyte treatment device, which comprises a coagulation cylinder, two dosing mechanisms, a stirring mechanism and a liquid pumping mechanism, the top of the coagulation cylinder is provided with a flocculant adding port, the inner diameter of the bottom of the coagulation cylinder is gradually reduced, the bottom of the coagulation cylinder is provided with a discharge port, the two dosing mechanisms are both communicated with the coagulation cylinder, and the stirring mechanism is communicated with the liquid pumping mechanism. An acidic solution and an alkaline solution can be respectively added into the coagulation cylinder; the stirring mechanism comprises a stirrer rotationally arranged in the coagulation cylinder, a driving part arranged at the top of the coagulation cylinder and connected with the stirrer, and a spiral blade arranged on the stirrer, and the spiral blade is arranged in the discharge port in a penetrating manner; the liquid pumping mechanism comprises a guide pipe movably connected with the coagulation cylinder and a liquid pumping piece connected with the guide pipe, and the guide pipe can be inserted into the coagulation cylinder. The problem that in the prior art, after a lithium battery electrolyte and a flocculating agent react in a coagulation cylinder to form a precipitate and a clear liquid, the precipitate and the clear liquid are inconvenient to be respectively and rapidly discharged from the coagulation cylinder is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of lithium battery electrolyte treatment, in particular to a lithium battery electrolyte treatment device. Background Art

[0002] The recycling of waste lithium batteries is of great significance. The electrolyte of waste lithium batteries contains a large amount of recyclable substances. When lithium batteries are recycled, the electrolyte and solid materials of the waste lithium batteries will be separated after they are crushed.

[0003] In the prior art, in order to recover metal ions in lithium battery electrolyte, the lithium battery electrolyte is usually placed in a coagulation drum, and a flocculant is added to the lithium battery electrolyte. The lithium battery electrolyte is stirred by a stirring mechanism, so that the metal ions in the lithium battery electrolyte react with the flocculant to form precipitate and clear liquid. The operator needs to use a handheld pump to extract the clear liquid in the coagulation drum, and then shovel out the precipitate in the coagulation drum with a shovel. The work intensity is relatively high, and it is inconvenient to quickly discharge the precipitate and clear liquid from the coagulation drum separately. Utility Model Content

[0004] The purpose of the utility model is to overcome the above-mentioned technical deficiencies and provide a lithium battery electrolyte treatment device to solve the problem in the prior art that after the lithium battery electrolyte reacts with a flocculant in a coagulation drum to form a precipitate and a clear liquid, it is inconvenient to quickly discharge the precipitate and the clear liquid from the coagulation drum separately.

[0005] In order to achieve the above technical purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a lithium battery electrolyte treatment device, comprising a coagulation cylinder and two dosing mechanisms, wherein a flocculant adding port is arranged at the top of the coagulation cylinder, the inner diameter of the bottom of the coagulation cylinder is gradually reduced, and a discharge port is arranged at the bottom of the coagulation cylinder, the two dosing mechanisms are both connected to the coagulation cylinder, and can add an acid solution and an alkaline solution into the coagulation cylinder respectively; and further comprising a stirring mechanism and a liquid pumping mechanism connected to the coagulation cylinder,

[0007] The stirring mechanism includes a stirrer rotatably arranged in the coagulation drum, a driving member arranged at the top of the coagulation drum and connected to the stirrer, and a spiral blade arranged on the stirrer, and the spiral blade is inserted into the discharge port;

[0008] The liquid extraction mechanism comprises a conduit movably connected to the coagulation cylinder and a liquid extraction member connected to the conduit, and the conduit can be inserted into the coagulation cylinder.

[0009] In some embodiments, a filtering mechanism is also included, which includes a cylinder and a partition disposed in the cylinder, wherein the partition divides the interior of the cylinder into a filtering chamber and a pumping chamber located below the filtering chamber, and a plurality of filtering holes for connecting the filtering chamber with the pumping chamber are opened on the partition, and the pumping chamber is connected to the coagulation cylinder via a pump body.

[0010] In some embodiments, the filtering mechanism also includes a filter cartridge and a driving motor, the driving motor is fixedly connected to the partition, the output end of the driving motor is connected to the filter cartridge arranged in the filter cavity, the driving motor is used to drive the filter cartridge to rotate around its own axis, and the side wall of the filter cartridge is provided with a filter net.

[0011] In some embodiments, a plurality of bull's eye bearings for supporting the filter cartridge are fixedly disposed on the partition.

[0012] In some embodiments, the agitator includes a rotating rod coaxially arranged in the mixing drum, and a plurality of stirring blades fixed on the rotating rod at intervals, wherein a scraper blade is also connected to the rotating rod, and the scraper blade is in contact with the inner wall of the bottom of the mixing drum, and the spiral blade is connected to the lower end of the rotating rod.

[0013] In some embodiments, a protective cover for sealing the drive motor is fixedly provided on the partition.

[0014] In some embodiments, the conduit is provided with an external thread, and the thread on the conduit is rotatably connected to an adjustment block, the adjustment block abuts against the top of the coagulation cylinder, and the depth of the conduit inserted into the coagulation cylinder is adjusted by rotating the conduit.

[0015] In some embodiments, a window is nested on the coagulation cylinder along the depth direction, and the depth of the catheter inserted into the coagulation cylinder can be observed through the window.

[0016] In some embodiments, the inner wall of the coagulation cylinder is provided with a corrosion-resistant layer.

[0017] In some embodiments, the filter mechanism further includes a cover plate, the cover plate is connected to the top of the cylinder, and a liquid inlet pipe corresponding to the opening of the filter cylinder is provided on the cover plate.

[0018] Compared with the prior art, the utility model provides a lithium battery electrolyte treatment device, which is connected to the coagulation cylinder through two dosing mechanisms, and can add acidic solution and alkaline solution into the coagulation cylinder respectively; the agitator is rotatably arranged in the coagulation cylinder, the driving member is arranged at the top of the coagulation cylinder and connected to the agitator, the spiral blade is connected to the agitator, and the spiral blade is penetrated into the discharge port; the conduit is movably connected to the coagulation cylinder, the liquid extraction member is connected to the conduit, and the conduit can be inserted into the coagulation cylinder; after the lithium battery electrolyte and the flocculant react and precipitate in the coagulation cylinder, by adjusting the depth of the conduit inserted into the coagulation cylinder, it can be ensured that the liquid extraction member can quickly extract the clear liquid in the coagulation cylinder; and the agitator is driven by the driving member, thereby driving the spiral blade to rotate, and the precipitate can be quickly discharged from the discharge port, thereby improving the working efficiency of the lithium battery electrolyte treatment device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a lithium battery electrolyte treatment device provided by an embodiment of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the filter mechanism of the utility model embodiment;

[0021] Figure 3 yes Figure 2 A magnified schematic diagram of the middle A area;

[0022] Figure 4 It is a schematic diagram of the internal structure of a coagulation cylinder provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0024] In order to solve the technical problem that after the lithium battery electrolyte reacts with the flocculant in the coagulation drum to form the precipitate and the clear liquid, it is inconvenient to discharge the precipitate and the clear liquid from the coagulation drum quickly and separately, the utility model provides a lithium battery electrolyte treatment device, which can realize the rapid discharge of the precipitate and the clear liquid from the coagulation drum.

[0025] See also Figure 1 and Figure 4 , Figure 1 and Figure 4A lithium battery electrolyte treatment device is provided in one embodiment of the utility model, comprising a coagulation cylinder 1, two dosing mechanisms 2, a stirring mechanism 3 and a pumping mechanism 4, wherein the top of the coagulation cylinder 1 is provided with a flocculant addition port 11, the inner diameter of the bottom of the coagulation cylinder 1 is gradually reduced, and the bottom of the coagulation cylinder 1 is provided with a discharge port 12, the two dosing mechanisms 2 are both connected to the coagulation cylinder 1, and can add an acidic solution and an alkaline solution into the coagulation cylinder 1 respectively; the stirring mechanism 3 and the pumping mechanism 4 are both connected to the coagulation cylinder 1, and the acidic solution and the alkaline solution can be added to the coagulation cylinder 1 respectively; the stirring mechanism 3 and the pumping mechanism 4 are ... The coagulation cylinder 1 is connected, the stirring mechanism 3 includes a stirrer 31 rotatably arranged in the coagulation cylinder 1, a driving member 32 arranged at the top of the coagulation cylinder 1 and connected to the stirrer 31, and a spiral blade 33 arranged on the stirrer 31, and the spiral blade 33 is passed through the discharge port 12; the liquid extraction mechanism 4 includes a conduit 41 movably connected to the coagulation cylinder 1, and a liquid extraction member 42 connected to the conduit 41, and the conduit 41 can be inserted in the coagulation cylinder 1.

[0026] It should be noted that the lithium battery electrolyte is corrosive, the coagulation cylinder 1 is made of stainless steel, and the inner wall of the coagulation cylinder 1 is provided with a corrosion-resistant layer.

[0027] In this specific embodiment, please refer to Figure 1 The two dosing mechanisms 2 have the same structure, and the two dosing mechanisms 2 are not limited to a specific structure. Specifically, the dosing mechanism 2 includes a dosing box and a transfer pump connected between the dosing box and the coagulation cylinder 1. The acid solution or alkaline solution in the dosing box is transferred to the coagulation cylinder 1 through the transfer pump. The two dosing mechanisms 2 are fixedly connected to the outer wall of the coagulation cylinder 1.

[0028] Based on the above scheme, please refer to Figure 1 , Figure 2 and Figure 3 In order to filter out impurities in the lithium battery electrolyte, specifically, it also includes a filtering mechanism 5 connected to the coagulation cylinder 1, the filtering mechanism 5 includes a cylinder 51, and a partition 52 arranged in the cylinder 51, the partition 52 divides the interior of the cylinder 51 into a filtering chamber and a liquid pumping chamber located below the filtering chamber, and the partition 52 is provided with a plurality of filtering holes 521 for connecting the filtering chamber with the liquid pumping chamber, and the liquid pumping chamber is connected to the coagulation cylinder 1 via a pump body.

[0029] In other embodiments, see Figure 2 and Figure 3 The filtering mechanism 5 also includes a filter cartridge 53 and a driving motor 54. The driving motor 54 is fixedly connected to the partition plate 52. The output end of the driving motor 54 is connected to the filter cartridge 53 arranged in the filtering cavity. The driving motor 54 is used to drive the filter cartridge 53 to rotate around its own axis, and a filter screen 531 is provided on the side wall of the filter cartridge 53.

[0030] It should be noted that by driving the filter cartridge 53 to rotate around its own axis through the driving motor 54, the lithium battery electrolyte in the filter cartridge 53 can generate centrifugal force, and the lithium battery electrolyte can be thrown out into the cylinder body 51 through the filter net 531, and impurities can remain in the filter cartridge 53.

[0031] For further information, see Figure 2 The filter mechanism 5 further comprises a cover plate 50, which is connected to the top of the cylinder 51 and is provided with a liquid inlet pipe corresponding to the opening of the filter cylinder 53. A protective cover 56 for sealing the drive motor 54 is fixedly provided on the partition plate 52.

[0032] Also, see Figure 3 A plurality of bull's eye bearings 55 for supporting the filter cartridge 53 are fixedly disposed on the partition plate 52. The bottom of the filter cartridge 53 is supported by a plurality of bull's eye bearings 55, so that the stability of the filter cartridge 53 during rotation can be improved.

[0033] In this specific embodiment, please refer to Figure 4 The agitator 31 includes a rotating rod 311 coaxially arranged in the mixing drum 1, and a plurality of stirring blades 312 fixedly arranged on the rotating rod 311 at intervals, wherein a scraper blade 313 is also connected to the rotating rod 311, and the scraper blade 313 is in contact with the inner wall of the bottom of the mixing drum 1, and the spiral blade 33 is connected to the lower end of the rotating rod 311.

[0034] It should be noted that the driving member 32 is a forward and reverse motor fixedly mounted on the top of the coagulation drum 1. The output end of the forward and reverse motor is fixedly connected to the upper end of the rotating rod 311. The driving member 32 drives the rotating rod 311 to rotate around its own axis, so that the multiple stirring blades 312 can stir the lithium battery electrolyte in the coagulation drum 1, so that the lithium battery electrolyte is in full contact with the flocculant.

[0035] In addition, the precipitate produced by the reaction of heavy metal ions in the lithium battery electrolyte with the flocculant will accumulate at the bottom of the coagulation cylinder 1, and the clear liquid in the coagulation cylinder 1 can be extracted by cooperating with the liquid extraction part 42 and the conduit 41; at the same time, the scraper blade 313 rotates with the rotating rod 311, which can prevent the precipitate from adhering to the inner bottom of the coagulation cylinder 1, and the spiral blade 33 rotates with the rotating rod 311, which can squeeze out the precipitate in the coagulation cylinder 1.

[0036] It should be noted that, since the dividing line between the sediment and the clear liquid is not constant, it is necessary to adjust the depth of the catheter 41 inserted into the coagulation cylinder 1 to ensure that the clear liquid can be extracted to the maximum extent; in the present specific embodiment, the catheter 41 is provided with an external thread, and the threaded rotation of the catheter 41 is connected to an adjustment block 43, and the adjustment block 43 is abutted against the top of the coagulation cylinder 1, and the depth of the catheter 41 inserted into the coagulation cylinder 1 is adjusted by rotating the catheter 41.

[0037] Based on the above scheme, please refer to Figure 1 In order to facilitate observation of the depth of the catheter 41 inserted into the coagulation cylinder 1, specifically, a window 13 is nested along the depth direction on the coagulation cylinder 1, through which the boundary between the sediment and the clear liquid can be observed.

[0038] In order to better understand the present invention, the following Figures 1 to 4 The technical solution of the utility model is described in detail:

[0039] First, the lithium battery electrolyte is transported to the filter cylinder 53, and the driving motor 54 drives the filter cylinder 53 to rotate. The filter net 531 can filter the lithium battery electrolyte once. After the lithium battery electrolyte enters the filter cavity, it enters the pumping cavity through multiple filter holes 521 for secondary filtration. The lithium battery electrolyte in the pumping cavity is pumped into the coagulation cylinder 1 through the pump body, and an alkaline solution is transported into the coagulation cylinder 1 through a dosing mechanism 2. After the alkaline solution and the lithium battery electrolyte are fully reacted, a flocculant is added to the coagulation cylinder 1 to make it suspended in the mixed liquid. The solid particles in the body are fully precipitated, and finally an acidic solution is added into the coagulation cylinder 1 through another dosing mechanism 2 to adjust the pH of the mixed liquid to neutral, and then it is left to stand for a period of time; finally, the clear liquid in the coagulation cylinder 1 is extracted by the liquid extraction part 42 through the catheter 41 inserted into the clear liquid; the valve on the discharge port 12 is opened, and the forward and reverse motors drive the rotating rod 311 to rotate, thereby driving the stirring blade 312, the scraper blade 313 and the spiral blade 33 to rotate, and the precipitate in the coagulation cylinder 1 can be squeezed out so that the metal ions in the precipitate can be recycled.

[0040] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A lithium battery electrolyte treatment device, comprising a coagulation cylinder and two dosing mechanisms, wherein a flocculant addition port is provided at the top of the coagulation cylinder, the inner diameter of the bottom of the coagulation cylinder is tapered, and a discharge port is provided at the bottom of the coagulation cylinder, and the two dosing mechanisms are both connected to the coagulation cylinder and can add an acidic solution and an alkaline solution into the coagulation cylinder respectively; characterized in that: It also includes a stirring mechanism and a liquid pumping mechanism connected to the coagulation cylinder. The stirring mechanism includes a stirrer rotatably arranged in the coagulation drum, a driving member arranged at the top of the coagulation drum and connected to the stirrer, and a spiral blade arranged on the stirrer, and the spiral blade is inserted into the discharge port; The liquid extraction mechanism comprises a conduit movably connected to the coagulation cylinder and a liquid extraction member connected to the conduit, and the conduit can be inserted into the coagulation cylinder.

2. A lithium battery electrolyte treatment device according to claim 1, characterized in that: It also includes a filtering mechanism, which includes a cylinder and a partition arranged in the cylinder, the partition divides the interior of the cylinder into a filtering chamber and a liquid pumping chamber located below the filtering chamber, and the partition is provided with a plurality of filtering holes for connecting the filtering chamber with the liquid pumping chamber, and the liquid pumping chamber is connected to the coagulation cylinder via a pump body.

3. A lithium battery electrolyte treatment device according to claim 2, characterized in that: The filtering mechanism also includes a filter cartridge and a driving motor. The driving motor is fixedly connected to the partition. The output end of the driving motor is connected to the filter cartridge arranged in the filter cavity. The driving motor is used to drive the filter cartridge to rotate around its own axis, and a filter screen is provided on the side wall of the filter cartridge.

4. A lithium battery electrolyte treatment device according to claim 3, characterized in that: A plurality of bull's eye bearings for supporting the filter cartridge are fixedly arranged on the partition plate.

5. A lithium battery electrolyte treatment device according to claim 1, characterized in that: The agitator includes a rotating rod coaxially arranged in the mixing drum, and a plurality of stirring blades fixed on the rotating rod at intervals, wherein a scraper blade is also connected to the rotating rod, and the scraper blade contacts the inner wall of the bottom of the mixing drum, and the spiral blade is connected to the lower end of the rotating rod.

6. A lithium battery electrolyte treatment device according to claim 3, characterized in that: A protective cover for sealing the drive motor is fixedly arranged on the partition.

7. A lithium battery electrolyte treatment device according to claim 1, characterized in that: The conduit is provided with an external thread, and an adjusting block is rotatably connected to the thread on the conduit. The adjusting block abuts against the top of the coagulation cylinder, and the depth of the conduit inserted into the coagulation cylinder can be adjusted by rotating the conduit.

8. A lithium battery electrolyte treatment device according to claim 1, characterized in that: A window is nested on the coagulation cylinder along the depth direction, and the depth of the catheter inserted into the coagulation cylinder can be observed through the window.

9. A lithium battery electrolyte treatment device according to claim 1, characterized in that: The inner wall of the coagulation cylinder is provided with a corrosion-resistant layer.

10. A lithium battery electrolyte treatment device according to claim 3, characterized in that: The filter mechanism further comprises a cover plate, which is connected to the top of the cylinder body and is provided with a liquid inlet pipe corresponding to the opening of the filter cylinder.

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