A mixing device for producing lithium battery electrolyte

Abstract

The present invention belongs to the technical field of lithium battery electrolyte, and in particular, is a mixing device for lithium battery electrolyte production, including a mixing tank, and also including a stirring device, a circulation device and a cleaning device installed in the mixing tank. The mixing device for lithium battery electrolyte production mixes the electrolyte raw materials in the mixing tank by setting a stirring device, and the lifting and rotating sleeve drives the stirring paddle to lift and rotate, and the stirring paddle rotates at the same time, so that the stirring is more sufficient and uniform. By setting a circulation device, the raw materials of the upper and lower layers in the mixing tank are mixed, and the delivery pump sucks the raw materials of the lower layer of the mixing tank. The mixing connecting rod group is extended and retracted to change the stirring range, and the stirred raw materials are delivered to the upper layer of the raw materials of the mixing tank, so as to mix the upper and lower raw materials of the mixing tank. By setting a cleaning device, the inside of the mixing tank can be cleaned. After the electromagnetic ring rises, the supporting connecting rod unfolds the cleaning nozzle to wash the inner wall of the mixing tank.

Description

Technical Field

[0001] The invention relates to the technical field of lithium battery electrolyte, and in particular to a mixing device for producing lithium battery electrolyte. Background Art

[0002] Lithium-ion batteries are widely used in communication equipment, instruments, computers, power tools, energy storage industry, electric bicycles, new energy vehicles and other industries involving the use of portable electricity. Lithium-ion battery electrolyte is a key component for the performance of lithium-ion batteries. The quality of the electrolyte affects the performance of the battery and also affects the quality stability of the electrolyte itself.

[0003] At present, when lithium-ion battery electrolyte is stirred, lithium salt, solvent, additives, etc. are mixed through a stirring kettle. At present, conventional stirring kettles are mostly used in the preparation of lithium-ion electrolytes, which cannot achieve fast and uniform stirring and mixing, have low mixing efficiency, and the product discharge speed is slow, which cannot meet the production needs, and the mixing is uneven, which affects the quality of the electrolyte and causes the quality of the lithium battery to be reduced. In addition, the stirring kettle cannot be cleaned after stirring, which affects the next stirring work and causes the next electrolyte mixing ratio to be affected. Summary of the invention

[0004] Based on the technical problems that the existing mixing equipment cannot achieve fast and uniform stirring and mixing, has low mixing efficiency, slow product discharge speed, cannot meet production needs, and has uneven mixing, affecting the quality of the electrolyte, and cannot quickly clean the stirring kettle after stirring, the present invention proposes a mixing equipment for lithium battery electrolyte production.

[0005] The present invention provides a mixing device for producing lithium battery electrolyte, which comprises a mixing tank, and also comprises a stirring device, a circulation device and a cleaning device installed in the mixing tank.

[0006] The stirring device is located inside the mixing tank and mixes the electrolyte raw materials in the mixing tank. The stirring device includes a lifting mechanism and a stirring mechanism. The lifting mechanism includes a lifting rotating sleeve. The rotation and lifting of the lifting rotating sleeve drive the stirring mechanism to rotate and lift synchronously in the mixing tank. The stirring mechanism includes a stirring paddle with a bevel gear. The rotation of the stirring paddle stirs the solution in the mixing tank.

[0007] The circulation device is located outside the mixing tank, and sucks and circulates the raw materials in the mixing tank. The circulation device includes a mixing mechanism and a conveying mechanism. The mixing mechanism includes a mixing connecting rod group with a bevel gear. The rotation of the mixing connecting rod group stirs the raw materials sucked into the mixing tank. The conveying mechanism includes a conveying folded pipe, and the conveying folded pipe conveys the stirred raw materials into the mixing tank.

[0008] The cleaning device is located outside the mixing tank and cleans the mixing tank after use. The cleaning device includes a storage tank with a water pump and a cleaning mechanism. The cleaning mechanism includes a cleaning nozzle. After the cleaning nozzle rotates, it sprays the cleaning liquid into the mixing tank.

[0009] Preferably, the lifting mechanism also includes a lifting motor, which is fixedly installed on the upper surface of the mixing tank, and a fixed sleeve is fixedly installed on the upper surface of the mixing tank, one end of the fixed sleeve passes through the inner top wall of the mixing tank and extends into the interior thereof, the upper surface of the fixed sleeve is rotatably connected to a first threaded sleeve via a bearing, the output shaft of the lifting motor drives the first threaded sleeve to rotate via a gear set, the inner wall of the fixed sleeve is slidably inserted with the first lifting sleeve, and the inner wall of the first lifting sleeve is threadedly connected to the outer surface of the first threaded sleeve.

[0010] Through the above technical solution, the first threaded sleeve is driven to rotate after the lifting motor is started, thereby driving the first lifting sleeve to be lifted and lowered.

[0011] Preferably, the inner wall of the first lifting sleeve is rotatably connected to the second threaded sleeve via a bearing, the inner wall of the second threaded sleeve is slidably plugged into the outer surface of the first threaded sleeve, the outer surface of the first threaded sleeve is threadedly connected to the second lifting sleeve, the outer surface of the second lifting sleeve is slidably plugged into the inner wall of the first lifting sleeve, the inner wall of the second lifting sleeve is rotatably connected to one end of the lifting and rotating sleeve via a bearing, and the inner wall of the lifting and rotating sleeve is slidably plugged into the outer surface of the second threaded sleeve.

[0012] Through the above technical scheme, the lifting of the first lifting sleeve can drive the second threaded sleeve to descend. After the second threaded sleeve is slidably connected with the first threaded sleeve, the rotation of the first threaded sleeve can drive the second threaded sleeve to rotate. The rotation of the second threaded sleeve can drive the lifting and rotating sleeve to lift and rotate, thereby realizing multi-stage lifting, which makes it convenient for the stirring paddle to be lifted and rotated at the same time to fully stir the raw materials in the mixing barrel.

[0013] Preferably, the stirring mechanism also includes a stirring frame, which is fixedly mounted on one end of the lifting and rotating sleeve, and the outer side surface of the stirring frame is rotatably connected to one end of the stirring paddle through a bearing, and the outer surface of the stirring frame is rotatably connected to a bevel gear disk through a bearing, and the outer surface of the bevel gear disk is slidably plugged into the inner wall of the mixing tank through a support plate, and the bevel gear of the stirring paddle is meshed with the bevel gear disk.

[0014] Through the above technical scheme, the stirring paddle is supported by the stirring frame. When the lifting and rotating sleeve of the stirring frame rotates, the stirring paddle as a whole is driven to rotate, thereby driving the bevel gear on the stirring paddle to rotate on the bevel gear disk, thereby driving the stirring paddle to rotate on itself, thereby achieving sufficient stirring of the electrolyte raw materials.

[0015] Preferably, the mixing mechanism also includes a mixing pipe, one end of the mixing pipe is fixedly connected to the inner wall of the mixing tank, a mixing motor is fixedly installed on the upper surface of the mixing pipe through a bracket, a connecting frame with a bevel gear is fixedly installed on the upper surface of the mixing pipe, the outer surface of the connecting frame is rotatably connected to one end of the mixing connecting rod group through a bearing, and a seal is provided at the connection between the mixing connecting rod group and the mixing pipe.

[0016] Through the above technical solution, the electrolyte in the mixing pipe can be stirred by the rotation of the mixing connecting rod group, thereby stirring the sucked electrolyte and accelerating the speed of mixing the electrolyte raw materials.

[0017] Preferably, the outer surface of the connecting frame is rotatably connected to a mixing screw with a bevel gear through a bearing, the bevel gear of the mixing screw and the bevel gear of the mixing connecting rod group are respectively meshed with the bevel gear of the connecting frame, the output shaft of the mixing motor drives the mixing screw to rotate through a gear group, one end of the mixing screw is threadedly connected to a threaded connecting sleeve, the outer surface of the threaded connecting sleeve is slidably connected to the inner wall of the mixing pipe through a connecting piece, and one end of the threaded connecting sleeve is rotatably connected to the other end of the mixing connecting rod group through a bearing.

[0018] Through the above technical solution, the rotation of the mixing screw can drive the threaded connection sleeve to rise and fall, thereby driving the mixing connecting rod group to deflect, thereby changing the stirring position, which is convenient for fully stirring the solution in the mixing pipe.

[0019] Preferably, the conveying mechanism also includes a conveying pump, the water inlet end of the conveying pump is fixedly connected to one end of the mixing pipe, the water outlet end of the conveying pump is fixedly connected to one end of the conveying folding pipe through a connecting pipe, a water outlet cavity is opened inside the lifting and rotating sleeve, one end of the conveying folding pipe passes through the inner wall of the lifting and rotating sleeve and is fixedly connected to the inner wall of the water outlet cavity through a rotating joint, and the inner wall of the water outlet cavity is fixedly connected to a circulating nozzle.

[0020] Through the above technical scheme, the mixed liquid in the mixing pipe is transported into the delivery folded tube through the delivery pump, and then into the water outlet chamber through the delivery folded tube. The delivery folded tube can be stretched along with the lifting and rotating sleeve, and the delivery folded tube automatically retracts and contracts to facilitate resetting. The electrolyte is transported into the spraying place of the circulation nozzle through the water outlet chamber to be mixed with the electrolyte in the upper layer again, so as to facilitate the mixing of the upper and lower layers of electrolyte.

[0021] Preferably, the storage tank is arranged at one side of the mixing tank, and the water outlet end of the water pump of the storage tank is fixedly connected to a diverter, and the diverter is fixedly installed on the upper surface of the fixed sleeve.

[0022] Through the above technical solution, after the cleaning liquid is stored in the storage tank, it is sucked by the water pump and transported into the diverter, and then diverted into multiple cleaning nozzles through the diverter.

[0023] Preferably, the cleaning mechanism also includes a deflection plate, which is hinged to the inner surface of the fixed sleeve through a pin shaft, and the cleaning nozzle is fixedly installed on the inner surface of the deflection plate, and one end of the cleaning nozzle is fixedly connected to the inner wall of the diverter through a hose.

[0024] Through the above technical solution, the inside of the mixing tank can be flushed through the cleaning nozzle, and the deflection plate can be deflected to facilitate the deflection of the cleaning nozzle.

[0025] Preferably, an electromagnetic ring is slidably inserted into the outer surface of the second lifting sleeve, the inner wall of the electromagnetic ring is magnetically connected to the outer surface of the second lifting sleeve, the outer surface of the electromagnetic ring is hinged with a supporting link through a pin, and one end of the supporting link is hinged to the inner surface of the deflection plate through a pin.

[0026] Through the above technical solution, after the electromagnetic ring is magnetically connected to the second lifting sleeve, the electromagnetic ring can be raised and lowered with the second lifting sleeve, and the deflection plate is driven to deflect through the supporting connecting rod, so that the cleaning nozzle is unfolded to facilitate cleaning.

[0027] The beneficial effects of the present invention are:

[0028] 1. By setting a stirring device, the electrolyte raw materials in the mixing tank can be mixed. The first lifting sleeve is lifted and lowered after the first threaded sleeve rotates, and the second threaded sleeve is synchronously lowered when the first lifting sleeve is lowered. At the same time, the second threaded sleeve is synchronously rotated when the first threaded sleeve rotates, so that the second lifting sleeve can be driven to lift and lower, thereby driving the lifting and rotating sleeve to rotate and lift, driving the stirring paddle to lift and rotate at the same time, and stirring the raw materials in the mixing tank. At the same time, the bevel gear and the bevel gear disk of the stirring paddle rotate, driving the stirring paddle to rotate and rotate at the same time, so that the stirring is more sufficient and uniform, and solves the existing technical problems that fast and uniform stirring and mixing cannot be achieved, the mixing efficiency is low, the product discharge speed is slow, the production needs cannot be met, and the mixing is uneven, which affects the quality of the electrolyte.

[0029] 2. By setting up a circulation device, it is convenient to mix the raw materials in the upper and lower layers of the mixing tank. The raw materials in the lower layer of the mixing tank are sucked into the mixing pipe by the delivery pump. By starting the mixing motor, the mixing screw and the mixing connecting rod group can be driven to rotate. The rotation of the mixing screw drives the threaded connection sleeve to rise and fall, and drives the lower end of the mixing connecting rod group to rise and fall, so that the mixing connecting rod group can be extended and retracted to change the stirring range, thereby making the stirring more uniform. The stirred raw materials are conveyed into the upper layer of the raw materials in the mixing tank through the circulation nozzle, so that the upper and lower raw materials in the mixing tank are mixed, which solves the existing technical problems of being unable to achieve fast and uniform stirring and mixing, low mixing efficiency, slow product discharging speed, inability to meet production needs, and uneven mixing, which affects the quality of the electrolyte.

[0030] 3. By setting up a cleaning device, the mixing tank can be cleaned. After the electromagnetic ring and the second lifting sleeve are magnetically connected, the second lifting sleeve rises, which can drive the electromagnetic ring to rise synchronously. The deflection plate is opened by the supporting connecting rod, so that the cleaning nozzle can be unfolded, which is convenient for flushing the inner wall of the mixing tank. Therefore, the mixing tank can be quickly cleaned after stirring, which solves the technical problem that the existing non-agitator kettle cannot be quickly cleaned after stirring. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0032] Figure 2 A three-dimensional diagram of a fixed sleeve structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0033] Figure 3 A three-dimensional diagram of a first lifting sleeve structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0034] Figure 4 A three-dimensional diagram of a second threaded sleeve structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0035] Figure 5 A three-dimensional diagram of a first threaded sleeve structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0036] Figure 6 A three-dimensional diagram of a lifting and rotating sleeve structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0037] Figure 7 A three-dimensional diagram of a stirring paddle structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0038] Figure 8 A three-dimensional diagram of a circulation nozzle structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0039] Fig. 9 A three-dimensional diagram of a mixing housing structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0040] Fig.10 A three-dimensional diagram of a mixing connecting rod group structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0041] Fig.11 A three-dimensional diagram of a deflection plate structure of a mixing device for producing lithium battery electrolyte proposed by the present invention;

[0042] Fig.12 This is a stereoscopic diagram of a cleaning nozzle structure of a mixing device for producing lithium battery electrolyte proposed by the present invention.

[0043] In the figure: 1. mixing tank; 2. lifting motor; 21. fixed sleeve; 22. first threaded sleeve; 23. first lifting sleeve; 24. second threaded sleeve; 25. second lifting sleeve; 26. lifting rotating sleeve; 3. stirring frame; 31. stirring paddle; 32. bevel gear disc; 4. mixing pipeline; 41. mixing motor; 42. connecting frame; 43. mixing connecting rod group; 44. mixing screw rod; 45. threaded connecting sleeve; 5. delivery pump; 51. delivery folding pipe; 52. water outlet chamber; 53. circulation nozzle; 6. storage tank; 61. diverter; 7. deflector plate; 71. cleaning nozzle; 72. electromagnetic ring; 73. supporting connecting rod. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Reference Figure 1-Figure 12 A mixing device for producing lithium battery electrolyte includes a mixing tank 1, and also includes a stirring device, a circulation device and a cleaning device installed in the mixing tank 1.

[0046] like Figure 2-Figure 7 As shown, in order to fully stir the raw materials in the mixing tank 1, the stirring device is located inside the mixing tank 1, and mixes the electrolyte raw materials in the mixing tank 1. The stirring device includes a lifting mechanism and a stirring mechanism. The lifting mechanism includes a lifting rotating sleeve 26. The rotation and lifting of the lifting rotating sleeve 26 drive the stirring mechanism to rotate and lift synchronously in the mixing tank 1. The stirring mechanism includes a stirring paddle 31 with a bevel gear. The rotation of the stirring paddle 31 stirs the solution in the mixing tank 1.

[0047] Specifically, in order to drive the stirring paddle 31 to lift and rotate, the lifting mechanism also includes a lifting motor 2, which is fixedly installed on the upper surface of the mixing tank 1. A fixed sleeve 21 is fixedly installed on the upper surface of the mixing tank 1. One end of the fixed sleeve 21 passes through the inner top wall of the mixing tank 1 and extends to the interior thereof. The upper surface of the fixed sleeve 21 is rotatably connected to a first threaded sleeve 22 through a bearing. The output shaft of the lifting motor 2 drives the first threaded sleeve 22 to rotate through a gear set. The inner wall of the fixed sleeve 21 is slidably inserted with a first lifting sleeve 23, and the inner wall of the first lifting sleeve 23 is threadedly connected to the outer surface of the first threaded sleeve 22.

[0048] Specifically, in order to drive the lifting and rotating sleeve 26 to perform rapid lifting and rotation, the inner wall of the first lifting sleeve 23 is rotatably connected to the second threaded sleeve 24 through a bearing, the inner wall of the second threaded sleeve 24 is slidably plugged into the outer surface of the first threaded sleeve 22, the outer surface of the first threaded sleeve 22 is threadedly connected to the second lifting sleeve 25, the outer surface of the second lifting sleeve 25 is slidably plugged into the inner wall of the first lifting sleeve 23, the inner wall of the second lifting sleeve 25 is rotatably connected to one end of the lifting and rotating sleeve 26 through a bearing, and the inner wall of the lifting and rotating sleeve 26 is slidably plugged into the outer surface of the second threaded sleeve 24.

[0049] Specifically, in order to fully stir the materials in the mixing tank 1, the stirring mechanism also includes a stirring frame 3, which is fixedly mounted on one end of the lifting and rotating sleeve 26, and the outer side surface of the stirring frame 3 is rotatably connected to one end of a stirring paddle 31 through a bearing, and the outer surface of the stirring frame 3 is rotatably connected to a bevel gear disk 32 through a bearing, and the outer surface of the bevel gear disk 32 is slidably plugged into the inner wall of the mixing tank 1 through a support plate, and the bevel gear of the stirring paddle 31 is meshed with the bevel gear disk 32.

[0050] like Figure 8-Figure 10 As shown, in order to fully stir the materials in the mixing tank 1, the circulation device is located outside the mixing tank 1, and the raw materials in the mixing tank 1 are sucked and circulated. The circulation device includes a mixing mechanism and a conveying mechanism. The mixing mechanism includes a mixing connecting rod group 43 with a bevel gear. The rotation of the mixing connecting rod group 43 stirs the raw materials in the mixing tank 1. The conveying mechanism includes a conveying folded pipe 51. The conveying folded pipe 51 conveys the stirred raw materials into the mixing tank 1.

[0051] Specifically, in order to drive the mixing connecting rod group 43 to rotate, the mixing mechanism also includes a mixing pipe 4, one end of the mixing pipe 4 is fixedly connected to the inner wall of the mixing tank 1, a mixing motor 41 is fixedly installed on the upper surface of the mixing pipe 4 through a bracket, a connecting frame 42 with a bevel gear is fixedly installed on the upper surface of the mixing pipe 4, the outer surface of the connecting frame 42 is rotatably connected to one end of the mixing connecting rod group 43 through a bearing, and a seal is provided at the connection between the mixing connecting rod group 43 and the mixing pipe 4.

[0052] Specifically, in order to drive the mixing connecting rod group 43 to deform and stir different areas in the mixing pipe 4, the outer surface of the connecting frame 42 is rotatably connected to the mixing screw 44 with a bevel gear through a bearing, and the bevel gear of the mixing screw 44 and the bevel gear of the mixing connecting rod group 43 are respectively meshed with the bevel gear of the connecting frame 42, and the output shaft of the mixing motor 41 drives the mixing screw 44 to rotate through the gear group, and one end of the mixing screw 44 is threadedly connected to a threaded connecting sleeve 45, and the outer surface of the threaded connecting sleeve 45 is slidably connected to the inner wall of the mixing pipe 4 through a connecting piece, and one end of the threaded connecting sleeve 45 is rotatably connected to the other end of the mixing connecting rod group 43 through a bearing.

[0053] Specifically, in order to carry out the circulation work, the conveying mechanism also includes a conveying pump 5, the water inlet end of the conveying pump 5 is fixedly connected with one end of the mixing pipe 4, the water outlet end of the conveying pump 5 is fixedly connected with one end of the conveying folding pipe 51 through a connecting pipe, and a water outlet chamber 52 is opened inside the lifting and rotating sleeve 26. One end of the conveying folding pipe 51 passes through the inner wall of the lifting and rotating sleeve 26 and is fixedly connected with the inner wall of the water outlet chamber 52 through a rotating joint. The inner wall of the water outlet chamber 52 is fixedly connected with a circulation nozzle 53, which sucks the raw materials at the lower end of the mixing tank 1 for stirring and then conveys them into the upper end of the mixing tank 1, so that the materials at the upper end and the lower end of the mixing tank 1 can be stirred, so that they can be fully stirred.

[0054] like Figure 11-Figure 12 As shown, in order to clean the mixing tank 1, the cleaning device is located outside the mixing tank 1, and cleans the mixing tank 1 after use. The cleaning device includes a storage tank 6 with a water pump and a cleaning mechanism. The cleaning mechanism includes a cleaning nozzle 71. After the cleaning nozzle 71 rotates, the cleaning liquid is sprayed into the mixing tank 1.

[0055] Specifically, in order to transport cleaning liquid into the mixing tank 1 , the storage tank 6 is arranged on one side of the mixing tank 1 , and the water outlet end of the water pump of the storage tank 6 is fixedly connected to a diverter 61 , which is fixedly installed on the upper surface of the fixed sleeve 21 .

[0056] Specifically, in order to perform flushing, the cleaning mechanism also includes a deflection plate 7, which is hinged to the inner surface of the fixed sleeve 21 through a pin shaft, and a cleaning nozzle 71 is fixedly installed on the inner surface of the deflection plate 7, and one end of the cleaning nozzle 71 is fixedly connected to the inner wall of the diverter 61 through a hose.

[0057] Specifically, in order to facilitate the deflection and expansion of the cleaning nozzle 71 for flushing, an electromagnetic ring 72 is slidably inserted into the outer surface of the second lifting sleeve 25, and the inner wall of the electromagnetic ring 72 is magnetically connected to the outer surface of the second lifting sleeve 25. The outer surface of the electromagnetic ring 72 is hinged with a support link 73 through a pin shaft, and one end of the support link 73 is hinged to the inner surface of the deflection plate 7 through a pin shaft; after the electromagnetic ring 72 is magnetically connected to the second lifting sleeve 25, the electromagnetic ring 72 can be lifted and lowered with the lifting of the second lifting sleeve 25, and the deflection plate 7 can be driven to deflect through the support link 73, so that the cleaning nozzle 71 is expanded, which is convenient for cleaning.

[0058] Working principle: After the raw materials are transported into the mixing tank 1 through the feed port of the mixing tank 1, the lifting motor 2 on the mixing tank 1 is driven. After the lifting motor 2 drives the first threaded sleeve 22 to rotate through the gear set, the first lifting sleeve 23 slidingly plugged with the fixed sleeve 21 is driven to descend, thereby driving the second threaded sleeve 24 in the first lifting sleeve 23 to descend. At the same time, after the second threaded sleeve 24 is slidably plugged with the first threaded sleeve 22, it can drive the second threaded sleeve 24 to rotate, driving the second lifting sleeve 25 to be able to be in the first lifting sleeve 2 3, driving the lifting and rotating sleeve 26 in the second lifting sleeve 25 to descend, and at the same time, after the lifting and rotating sleeve 26 is slidably plugged with the second threaded sleeve 24, driving the lifting and rotating sleeve 26 to rotate, thereby driving the stirring frame 3 fixedly installed with the lifting and rotating sleeve 26 to rotate, driving the stirring paddle 31 on the stirring frame 3 to rotate, and the bevel gear on the stirring paddle 31 rotates on the bevel gear disk 32, driving the stirring paddle 31 to rotate, and at the same time, the bevel gear disk 32 descends as the lifting and rotating sleeve 26 descends, and the stirring paddle fully stirs the mixing tank 1;

[0059] At the same time, the delivery pump 5 sucks the raw materials at the lower end of the mixing tank 1 into the mixing pipe 4. After the mixing motor 41 on the mixing pipe 4 is started, it drives the mixing connecting rod group 43 and the mixing screw 44 on the connecting frame 42 to rotate synchronously in the opposite direction. The rotation of the mixing screw 44 drives the threaded connection sleeve 45 to rise and fall, and then drives one end of the mixing connecting rod group 43 to rise and fall, and drives the lower end connecting rod of the mixing connecting rod group 43 to deflect, and then changes the mixing position of the mixing connecting rod group 43. The stirred raw materials enter the delivery folding pipe 51. The delivery folding pipe 51 cooperates with the lifting and rotating sleeve 26 to be stretched after it is lowered. The delivery folding pipe 51 delivers the raw materials into the water outlet cavity 52, and sprays them through the circulation nozzle 53. The circulation nozzle 53 rotates with the lifting and rotating sleeve 26 to ensure uniform mixing, and the lower end raw materials enter the upper end raw materials.

[0060] When the mixing tank 1 needs to be cleaned, the cleaning liquid in the storage tank 6 is sucked out by the water pump on the storage tank 6, and then transported into the cleaning nozzle 71 through the diverter 61. At the same time, the electromagnetic ring 72 is energized and magnetically connected to the lifting and rotating sleeve 26. After the lifting and rotating sleeve 26 rises, it drives the electromagnetic ring 72 to rise. After the electromagnetic ring 72 pushes the supporting connecting rod 73 to deflect, it pushes the deflection plate 7 to deflect outward, so that the nozzle of the cleaning nozzle 71 faces downward, and the cleaning liquid is used to flush the inside of the mixing tank 1, thereby completing the cleaning of the mixing tank 1.

[0061] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mixing device for producing lithium battery electrolyte, comprising a mixing tank (1), characterized in that: It also includes a stirring device, a circulation device and a cleaning device installed in the mixing tank (1); The stirring device is located inside the mixing tank (1) and mixes the electrolyte raw materials in the mixing tank (1). The stirring device comprises a lifting mechanism and a stirring mechanism. The lifting mechanism comprises a lifting rotating sleeve (26). The lifting rotating sleeve (26) rotates and lifts to drive the stirring mechanism to rotate and lift synchronously in the mixing tank (1). The stirring mechanism comprises a stirring paddle (31) with a bevel gear. The rotation of the stirring paddle (31) stirs the solution in the mixing tank (1). A fixed sleeve (21) is fixedly mounted on the upper surface of the mixing tank (1), one end of the fixed sleeve (21) penetrates through the inner top wall of the mixing tank (1) and extends into the interior thereof, the upper surface of the fixed sleeve (21) is rotatably connected to a first threaded sleeve (22) via a bearing, and the outer surface of the first threaded sleeve (22) is threadedly connected to a second lifting sleeve (25); The circulation device is located outside the mixing tank (1) and performs suction circulation on the raw materials in the mixing tank (1). The circulation device comprises a mixing mechanism and a conveying mechanism. The mixing mechanism comprises a mixing connecting rod group (43) with a bevel gear. The rotation of the mixing connecting rod group (43) stirs the raw materials sucked into the mixing tank (1). The conveying mechanism comprises a conveying folded pipe (51). The conveying folded pipe (51) conveys the stirred raw materials into the mixing tank (1). The mixing mechanism further comprises a mixing pipe (4), one end of the mixing pipe (4) being fixedly connected to the inner wall of the mixing tank (1), a mixing motor (41) being fixedly mounted on the upper surface of the mixing pipe (4) via a bracket, a connecting frame (42) with a bevel gear being fixedly mounted on the upper surface of the mixing pipe (4), an outer surface of the connecting frame (42) being rotatably connected to one end of the mixing connecting rod group (43) via a bearing, and a sealing member being provided at the connection between the mixing connecting rod group (43) and the mixing pipe (4); The outer surface of the connecting frame (42) is rotatably connected to a mixing screw (44) with a bevel gear via a bearing, the bevel gear of the mixing screw (44) and the bevel gear of the mixing connecting rod group (43) are respectively meshed with the bevel gear of the connecting frame (42), the output shaft of the mixing motor (41) drives the mixing screw (44) to rotate via a gear group, one end of the mixing screw (44) is threadedly connected to a threaded connection sleeve (45), the outer surface of the threaded connection sleeve (45) is slidably plugged with the inner wall of the mixing pipe (4) via a connecting piece, and one end of the threaded connection sleeve (45) is rotatably connected to the other end of the mixing connecting rod group (43) via a bearing; The conveying mechanism further comprises a conveying pump (5), the water inlet end of the conveying pump (5) being fixedly connected to one end of the mixing pipe (4), the water outlet end of the conveying pump (5) being fixedly connected to one end of the conveying folded pipe (51) via a connecting pipe, a water outlet cavity (52) being provided inside the lifting and rotating sleeve (26), one end of the conveying folded pipe (51) passing through the inner wall of the lifting and rotating sleeve (26) and being fixedly connected to the inner wall of the water outlet cavity (52) via a rotating joint, and a circulation nozzle (53) being fixedly connected to the inner wall of the water outlet cavity (52); The cleaning device is located outside the mixing tank (1) and cleans the mixing tank (1) after use. The cleaning device comprises a storage tank (6) with a water pump and a cleaning mechanism. The cleaning mechanism comprises a cleaning spray pipe (71). The cleaning spray pipe (71) rotates to spray cleaning liquid into the mixing tank (1). The storage tank (6) is arranged on one side of the mixing tank (1); a water outlet end of a water pump of the storage tank (6) is fixedly connected to a flow divider (61); and the flow divider (61) is fixedly mounted on the upper surface of the fixed sleeve (21); The cleaning mechanism further comprises a deflection plate (7), the deflection plate (7) being hinged to the inner surface of the fixed sleeve (21) via a pin shaft, the cleaning nozzle (71) being fixedly mounted on the inner surface of the deflection plate (7), and one end of the cleaning nozzle (71) being fixedly connected to the inner wall of the diverter (61) via a hose; An electromagnetic ring (72) is slidably inserted into the outer surface of the second lifting sleeve (25); the inner wall of the electromagnetic ring (72) is magnetically connected to the outer surface of the second lifting sleeve (25); a supporting connecting rod (73) is hinged to the outer surface of the electromagnetic ring (72) via a pin; one end of the supporting connecting rod (73) is hinged to the inner surface of the deflection plate (7) via a pin.

2. A mixing device for producing lithium battery electrolyte according to claim 1, characterized in that: The lifting mechanism further comprises a lifting motor (2), wherein the lifting motor (2) is fixedly mounted on the upper surface of the mixing tank (1), and an output shaft of the lifting motor (2) drives the first threaded sleeve (22) to rotate via a gear set, and a first lifting sleeve (23) is slidably inserted into the inner wall of the fixed sleeve (21), and the inner wall of the first lifting sleeve (23) is threadedly connected to the outer surface of the first threaded sleeve (22).

3. A mixing device for producing lithium battery electrolyte according to claim 2, characterized in that: The inner wall of the first lifting sleeve (23) is rotatably connected to the second threaded sleeve (24) via a bearing, the inner wall of the second threaded sleeve (24) is slidably plugged into the outer surface of the first threaded sleeve (22), the outer surface of the second lifting sleeve (25) is slidably plugged into the inner wall of the first lifting sleeve (23), the inner wall of the second lifting sleeve (25) is rotatably connected to one end of the lifting rotation sleeve (26) via a bearing, and the inner wall of the lifting rotation sleeve (26) is slidably plugged into the outer surface of the second threaded sleeve (24).

4. A mixing device for producing lithium battery electrolyte according to claim 1, characterized in that: The stirring mechanism further comprises a stirring frame (3), the stirring frame (3) being fixedly mounted on one end of the lifting and rotating sleeve (26), the outer side surface of the stirring frame (3) being rotatably connected to one end of the stirring paddle (31) via a bearing, the outer surface of the stirring frame (3) being rotatably connected to a bevel gear disk (32) via a bearing, the outer surface of the bevel gear disk (32) being slidably plugged into the inner wall of the mixing tank (1) via a support plate, and the bevel gear of the stirring paddle (31) being meshed with the bevel gear disk (32).

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