Recycling apparatus for waste lithium battery

• US 10,505,235 B2
• Filed: 12/21/2018
• Issued: 12/10/2019
• Est. Priority Date: 11/28/2018
• Status: Active Grant

• Current Assignee: Congjie Ye
• Original Assignee: Congjie Ye
• Inventors: Xu, Min
• Primary Examiner(s): Trinh, Minh N
• Application Number:
  US16/228,766
• Publication Number:
  US 20190123403A1
• Time in Patent Office: 354 Days
• CPC Class Codes: C22B 11/046 from manufactured products, e.g. from printed circuit boards, from photographic films, paper or baths
• CPC Class Codes: C22B 26/12 Obtaining lithium
• CPC Class Codes: C22B 7/007 by acid leaching
• CPC Class Codes: C22B 7/008 by an alkaline or ammoniacal leaching
• CPC Class Codes: H01M 10/54 Reclaiming serviceable parts of waste accumulators
• CPC Class Codes: Y02P 10/20 Recycling
• CPC Class Codes: Y02W 30/84 Recycling of batteries or fuel cells

Abstract

This invention discloses a recycling apparatus for waste lithium battery, comprising a main body, a lithium battery recycling device disposed in the main body, wherein, the lithium battery recycling device comprises a dissolution device disposed in the main body, wherein the dissolution device comprises dissolution cavities symmetrically disposed in two sides of the main body; a pushing cavity communicated with the inner wall of the upper side of the dissolution cavities; a pushing device disposed in the pushing cavity; wherein the lithium battery is put into one of the dissolution cavities for alkaline dissolving through the solution in the dissolution cavity and part of the metals are extracted. The lithium battery is then pushed to the other one of the dissolution cavities for further acidic dissolution through the pushing device. Thus the recycling of the metals in the waste battery will be realized.

Claims

1. A recycling apparatus for waste lithium battery in this invention, comprising

a main body;

a lithium battery recycling device disposed in said main body,

wherein, said lithium battery recycling device comprises a dissolution device disposed in said main body,

wherein said dissolution device comprises dissolution cavities symmetrically disposed in two sides of said main body,

wherein, one of the dissolution cavities proceeds acidic dissolution with the acidic solution inside, and the other one of the dissolution cavities proceeds alkaline dissolution with the alkaline solution inside;

a pushing cavity with an opening to one side communicated with the inner wall of the upper side of said dissolution cavities;

a pushing device disposed in said pushing cavity,

wherein said pushing device pushes alkaline dissolved waste of lithium battery to the dissolution cavity for acidic dissolution, while pushing acidic dissolved waste of lithium battery in said dissolution cavity to the outside of said pushing cavity through the opening;

a lithium battery crushing device arranged in the inner wall of the upper side of said pushing cavity,

wherein said lithium battery crushing device comprises a feed inlet with an upward opening arranged in said main body,

wherein, the waste lithium battery can be crushed by said lithium battery crushing device after being put into said feed inlet and then it falls into the other one of said dissolution cavities through said pushing cavity for alkaline dissolution;

wherein the lithium battery will be processed by said lithium battery crushing device, said pushing device and said dissolution device and the useful precious metals can be dissolved in the acidic dissolution and the alkaline dissolution and they will be extracted through subsequent processing.

2. The recycling apparatus for waste lithium battery of claim 1, wherein said dissolution device further comprises

a water outlet communicated with the inner wall of the lower side of said dissolution cavities;

an electrically controlled switch fixedly arranged between the inner wall of said water outlet,

wherein, the solution in said dissolution cavities can be discharged when said electrically controlled switch is turned on;

a slideable filter block disposed in said dissolution cavities,

wherein said filter block can block the battery waste above the upper end face of said filter block, while the solution can go through said filter block;

a dissolution transmission cavity in said main body disposed between said dissolution cavities on both sides;

a dissolution switching cavity communicated with the inner wall of the upper side of said dissolution transmission cavity;

a slideable motor fixer set in said dissolution switching cavity;

a dissolution slipping groove communicated with the inner wall of the upper side of said dissolution switching cavity;

a fixed dissolution switching motor disposed in the inner wall of the one side of said dissolution slipping groove;

a rotatable dissolution transmission lead screw in said dissolution slipping groove in power matching connection with one side of said dissolution switching motor;

a dissolution switching sliding block in threaded fit connection with said dissolution transmission lead screw and extended into said dissolution slipping groove fixedly connected with the surface of the upper side of said motor fixer;

a fixed filter block driving motor disposed in said motor fixer;

a rotatable dissolution driving gear in said dissolution transmission cavity in power matching connection with the lower side of said filter block driving motor through a revolving shaft;

dissolution driven gears engaged with said dissolution driving gear symmetrically and rotatably disposed on two sides of said dissolution driving gear;

dissolution sliding grooves respectively communicated with said dissolution cavities on both sides symmetrically disposed in the inner wall of the ends, close to each other, of said symmetrical dissolution cavities on both sides;

rotatable dissolution elevating lead screws in said dissolution sliding grooves fixedly connected to the upper end face of said symmetrical dissolution driven gears through a revolving shaft;

wherein, the end face, close to one side of said dissolution sliding groove, of said filter block, is provided with a dissolution elevating block fixedly connected thereto and extended into said dissolution sliding groove and in threaded fit connection with said dissolution elevating lead screw.

3. The recycling apparatus for waste lithium battery of claim 2, wherein torsion spring cavities symmetrically set on two sides are communicated with the inner wall of the lower side of said dissolution transmission cavity;

rotatable torsion spring connecting blocks in said dissolution torsion spring cavities are fixedly connected to the lower end face of said dissolution driven gear through a revolving shaft;

a return torsion spring is connected between the peripheral curved end face of said torsion spring connecting block and the inner wall of said torsion spring cavity;

wherein, when in use, said filter block driving motor drives said dissolution elevating lead screw to rotate through said dissolution driving gear, further elevating said filter block in the corresponding dissolution cavity, further pushing the waste lithium battery in said filter block upwards and pushing the processed waste lithium battery to next procedure through said pushing device;

when said dissolution driving gear disengages from said dissolution driven gear, deformation of the corresponding return torsion spring will drive the corresponding dissolution elevating lead screw to rotate reversely, further driving the corresponding filter block to descend to the initial position.

4. The recycling apparatus for waste lithium battery of claim 1, wherein said lithium battery crushing device comprises

a feed inlet with an upward opening arranged in said main body;

a crushing wheel rotatably disposed between the inner walls of two sides of said feed inlet,

wherein one side of said crushing wheel is rotatably connected to the inner wall of one side of said feed inlet through bearings, while the inner wall of the other side of said feed inlet is communicated with a crushing transmission cavity;

wherein the other side of said crushing wheel extends into said crushing transmission cavity and is connected with a rotatable driven pulley in said crushing transmission cavity;

rotatable driving pulleys in said crushing transmission cavities set in the sides, far away from each other, of said symmetrical driven pulleys;

a driving belt wound around said driving pulley and said driven pulley;

a rotatable first bevel gear in said crushing transmission cavity fixedly connected with one side of said driving pulley through a revolving shaft;

a rotatable second bevel gear in said crushing transmission cavity engaged with the one end, away from said feed inlet, of said first bevel gear;

a rotatable first gear in said crushing transmission cavity connected with the side, away from said feed inlet, of said second bevel gear through a same shaft;

a driving cavity communicated with the inner wall of one side of said feed inlet;

a transmission pulley rotatably arranged between the inner walls of two sides of said driving cavity, wherein two ends of said transmission pulley in power matching connection with fixed transmission motors in the inner walls of two sides of said driving cavity through a revolving shaft;

a rotatable second gear in said crushing transmission cavity in power matching connection with the one end, away from said transmission pulley, of said transmission motor through a revolving shaft;

a rotatable third gear in said crushing transmission cavity connected between said second gear and said first gear;

a conveying cavity communicated with the lower end of the inner wall of the other side of said feed inlet;

a conveying pulley rotatably disposed between the inner walls of two sides of said conveying cavity;

a conveying belt wound around said conveying pulley and said transmission pulley;

wherein the lithium battery will fall on said conveying belt after being crushed by said crushing wheel, and will be conveyed into the dissolution device through said conveying belt.

5. The recycling apparatus for waste lithium battery of claim 4, wherein a leaking tank is communicated with the inner wall of the lower side of said feed inlet,

wherein a filter plate is fixedly arranged on the upper opening of said leaking tank and a water outlet with an opening to one side is communicated with the inner lower wall of one side of said leaking tank;

a spray nozzle is fixedly set on the inner upper wall of the other side of said feed inlet, wherein said spray nozzle is used for cooling the lithium battery when it is being crushed.

6. The recycling apparatus for waste lithium battery of claim 1, wherein said pushing device comprises

said pushing cavity with an opening to one side in the inner upper wall of said dissolution cavities;

a feed hole communicated between the inner upper wall which is close to the inner wall of one side of said pushing cavity and the inner lower wall of said conveying cavity;

a partitioning chute communicated with the inner wall, close to the lower opening, of said feed hole;

a slideable partitioning sliding plate disposed in said partitioning chute;

a partitioning guide chute communicated with the inner upper wall of said partitioning chute;

a partitioning guide slider extended into said partitioning guide chute fixedly connected to the upper end face of said partitioning sliding plate;

a partitioning return spring connected between one end wall of said partitioning guide slider and the one inner wall of said partitioning guide chute;

a push block extended into said pushing cavity fixedly connected to one end of the lower part of said partitioning sliding plate;

a slideable pusher block in said pushing cavity set in one side of said push block;

pushing chutes symmetrically disposed in the inner walls of two sides of said pushing cavity;

a pushing motor fixedly set in one inner wall of said pushing chute;

a pushing lead screw in power matching connection with one side of said pushing motor;

a pushing slider which is in threaded connection with said pushing lead screw slideably set in said pushing chute;

a push connecting slot communicated between the inner walls of said pushing chute and said pushing cavity;

wherein a slideable push connecting block in said push connecting slot fixedly connected between opposite end walls of said pushing slider and said pusher block;

wherein the pushing motor is started to drive the pushing slider to move to one side through the pushing lead screw, driving the pusher block to slide to the same side through the push connecting block, and meanwhile the push block moves to the same side under the force of the partitioning return spring, driving the partitioning sliding plate to partition the lower opening of the feed hole, while at the same time, the pusher block pushes the lithium battery which has been pushed into the pushing cavity to the same side and into the other one of the dissolution cavities.