CN119140010A - Ternary battery wet aluminum removal recovery reaction kettle and recovery method - Google Patents
Ternary battery wet aluminum removal recovery reaction kettle and recovery method Download PDFInfo
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- CN119140010A CN119140010A CN202411631616.9A CN202411631616A CN119140010A CN 119140010 A CN119140010 A CN 119140010A CN 202411631616 A CN202411631616 A CN 202411631616A CN 119140010 A CN119140010 A CN 119140010A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/54—Reclaiming serviceable parts of waste accumulators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/117—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements arranged for outward flow filtration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/006—Baffles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
- B01J3/006—Processes utilising sub-atmospheric pressure; Apparatus therefor
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/04—Obtaining nickel or cobalt by wet processes
- C22B23/0453—Treatment or purification of solutions, e.g. obtained by leaching
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/10—Obtaining alkali metals
- C22B26/12—Obtaining lithium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B47/00—Obtaining manganese
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/006—Wet processes
- C22B7/007—Wet processes by acid leaching
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Abstract
The invention discloses a ternary battery wet aluminum removal recovery reaction kettle and a recovery method, and relates to the technical field of battery recovery. The novel reaction kettle comprises a reaction kettle body, wherein a third motor for controlling the rotation of a transmission shaft is fixedly connected to the top end of the reaction kettle body, and a baffle assembly for dividing an inner cavity of the reaction kettle body into a plurality of chambers is slidably connected to the outer wall of the transmission shaft. According to the invention, through the arrangement of the filter components and the associated components, the design of the number of the filter cartridges in the fixing frame is adopted, the alternate use of the filter cartridges is realized, the continuous filtration can be realized, when the sediment is generated in the filter cartridges, the sediment can be adhered to the inner wall of the filter cartridges, after the primary filtration is carried out in the filter cartridges, the cleaning component can clean the inner wall of the filter cartridges, and the sediment is collected by the collecting device.
Description
Technical Field
The invention relates to the technical field of battery recovery, in particular to a ternary battery wet aluminum removal recovery reaction kettle and a recovery method.
Background
After the life cycle of the ternary battery is finished, the ternary battery is damaged and cannot be repaired, the ternary battery needs to be reasonably disposed and recycled, so that the shortage of resources is relieved, and the environmental pollution is eliminated.
The method and the device for recycling lithium in the waste ternary lithium battery through wet selection are disclosed in the application number of CN115863816A, a feeding assembly is arranged, when lithium extraction agent is fed, the lithium extraction agent is placed in each feeding frame, a motor II is started, the motor II drives the feeding frame to slide on the inner wall of a rotary groove through a rotating shaft and a linkage rod, so that the lithium extraction agent is uniformly scattered between each regional division frame, the distribution uniformity of the lithium extraction agent is primarily improved, the feeding frames gradually become smaller from outside to inside, the storage space between the regional division frames also gradually becomes smaller from outside to inside, and the proportion of the ternary positive electrode powder material and the lithium extraction agent is in a mean value through the feeding mode, so that the lithium extraction uniformity between the lithium extraction agent and the ternary positive electrode powder material is ensured.
When the device is used for leaching lithium, lithium can be adhered to the wall, lithium adhesion can occur in any area immersed by the mixed solution, lithium can be generated in the stirring structure and the position of the device, the generation rate of new lithium can be reduced by the lithium adhered to the immersed position based on dynamic balance during lithium generation, the speed of removing lithium ions in the mixed solution is affected, the time consumed in recovering lithium is increased, the device can recover lithium, and when other precipitates are recovered, aluminum precipitates can be generated in the immersed area due to adhesion and accumulation of the precipitates, for example, aluminum precipitates are also generated in the immersed area, and the time consumed in recovering other precipitates is increased.
Disclosure of Invention
The invention aims to provide a ternary battery wet aluminum removal recovery reaction kettle and a recovery method, which are used for solving the problems in the background technology.
The technical scheme includes that the ternary battery wet aluminum removal recovery reaction kettle comprises a reaction kettle body, wherein a third motor for controlling a transmission shaft to rotate is fixedly connected to the top end of the reaction kettle body, a baffle plate assembly for dividing an inner cavity of the reaction kettle body into a plurality of cavities is slidably connected to the outer wall of the transmission shaft, a flow distribution device for controlling the flowing direction of liquid is fixedly connected to a discharge pipe of the reaction kettle body, and a filtering device for filtering particulate matters is fixedly connected to the discharge end of the flow distribution device;
the filtering device comprises a fixing frame, the fixing frame is fixedly arranged at the top end of the inside of the reaction kettle body, a filter cylinder for filtering particles is fixedly connected to the inside of the fixing frame, and a cleaning component for cleaning the filter cylinder is arranged in the fixing frame;
The inside of mount has the association subassembly that is arranged in restricting the inside liquid outflow of cartridge filter and controls the liquid flow direction in the diverging device, association subassembly includes a flexible piece, a flexible piece fixed mounting is in the inside of mount, a flexible end fixedly connected with movable plate of flexible piece, one side fixedly connected with spring damper of movable plate, the flexible end fixedly connected with sealed lid of spring damper, the inside top fixedly connected with U template of mount, the inside of sealed lid, U template and the fixed mount fixedly connected with between three are used for avoiding liquid outflow to connect the flexible band, sliding connection between sealed lid and the movable plate, realizes restricting the inside liquid outflow of cartridge filter through the compound die between a plurality of sealed lid, and the flexible end of a flexible piece is separated through the sealed lid that flexible control originally contacted, and cartridge filter inner wall solution moves to the inner chamber of reation kettle body through the passageway that U and connecting the flexible band constitute.
Still further, the baffle subassembly includes the baffle piece, and the inner wall of baffle piece and the outer wall sliding connection of transmission shaft, the outer wall of baffle piece rotates to be connected and removes the inner ring, removes the inner wall sliding connection of the outer wall of inner ring and reation kettle body, remove the internally mounted of inner ring and have and be used for realizing removing the liquid that is in baffle subassembly top to the pump body of below of baffle subassembly, remove and install the communicating No. three valves of liquid that is used for realizing baffle subassembly top and below on the inner ring, the top and the bottom of baffle piece are fixedly connected with respectively and are used for realizing the impeller that stirs the liquid, and No. one pump body is through removing the liquid that is in baffle subassembly top to the below of baffle subassembly, increases the pressure of baffle subassembly liquid, and the rising of control baffle subassembly, no. three valves realize that baffle subassembly top liquid and below liquid are communicated, and the baffle subassembly descends in the liquid because overall density is greater than the liquid density.
Still further, the clearance subassembly includes No. two motors, no. two motor fixed mounting is in the inside of mount, no. two motor's output fixedly connected with carousel, the top of carousel and cartridge filter rotates to be connected, the one end of carousel rotates to be connected with the clearance roller, the outside fixedly connected with of clearance roller is used for going deep into and clear up the arch of sieve mesh on the cartridge filter, the top fixedly connected with internal tooth ring of cartridge filter, the top fixedly connected with gear piece of clearance roller, the outer wall of gear piece meshes with the inner wall of internal tooth ring mutually, the bottom rotation of clearance roller is connected with the sealing disc, and the outer wall of sealing disc rotates with the inside of mount to be connected.
Still further, the association device includes the transfer line, and the bottom of transfer line and the inside bottom of mount rotate to be connected, the outer wall fixedly connected with connecting plate of transfer line, one side fixedly connected with dead lever of connecting plate, one side fixedly connected with of movable plate is used for the restriction frame with the dead lever matched with, through the change of the charging direction in the rotation control diverging device of transfer line, installs between transfer line and the diverging device and changes the class subassembly based on the change of the charging direction in transfer line rotation control diverging device.
Still further, the inside fixedly connected with collection device of mount, collection device is including collecting the box, collects the bottom of box installation at the mount, and the inside fixedly connected with of collection box is No. two the expansion pieces, and the expansion end rotation of No. two the expansion pieces is connected with sealed top cap, the top of sealed top cap and the bottom sliding connection of sealing disk.
Still further, diverging device includes the shunt tubes, and the discharge end of shunt tubes and the feed end of cartridge filter are fixed mutually, and the inside solution of reation kettle body moves the inner wall to the cartridge filter through the shunt tubes, the inside rotation of shunt tubes is connected with the water conservancy diversion piece, and the bottom of shunt tubes and the bottom of water conservancy diversion piece are fixed mutually in the top of transfer line, and the water conservancy diversion hole that is convenient for liquid to pass through has been seted up to the inside of water conservancy diversion piece.
Still further, change the subassembly and include a gear, a gear fixed mounting is on the top of transfer line, the inside sliding connection of mount has the rack bar, and the outer wall of a gear meshes with one side of rack bar mutually, the inside rotation of mount is connected with No. two gears, and the outer wall of No. two gears meshes with one side of rack bar mutually, and the top fixedly connected with driving medium of No. two gears, the bottom of shunt tubes and the bottom of water conservancy diversion piece are fixed mutually in the top of driving medium penetration.
The wet aluminum removal recovery method for the ternary battery adopts the wet aluminum removal recovery reaction kettle for the ternary battery, and the recovery method comprises the following steps:
Mixing and stirring ternary battery black powder and water, wherein the theoretical mass ratio of the ternary battery black powder to the water is 1-1.3:1, and obtaining primary pulp;
Leaching, namely stirring and mixing the primary pulp and the leaching solution in a reaction kettle body, wherein the theoretical mass ratio of the primary pulp to the leaching solution is 1:0.9-1.4, so as to obtain a mixed solution;
Removing copper, namely moving the mixed solution in the reaction kettle body to the inner space of a filter cylinder, adding an alkaline solution to adjust the ph of the mixed solution, controlling the ph value of the mixed solution to be in a range of 3-5, controlling the internal temperature of a fixing frame to be in a range of 60-70 ℃, adding sodium thiosulfate, stirring and reacting, filtering by using the filter cylinder to obtain copper removal mother liquor and copper precipitation, and moving the copper removal mother liquor into an inner cavity of the reaction kettle body;
Removing aluminum, namely moving copper-removing mother liquor in the reaction kettle body to the inner space of a filter cylinder, mixing the copper-removing solution and a precipitator, stirring and reacting, filtering through the filter cylinder to obtain aluminum-removing solution and aluminum precipitate, and moving the aluminum-removing solution into an inner cavity of the reaction kettle body;
Acid leaching, namely moving an aluminum removing solution in a reaction kettle body into the inner space of a filter cylinder, mixing the aluminum removing solution with acid liquor to obtain a first mixed solution, controlling the temperature to be within 90-100 ℃ for 1-2 hours, and continuously keeping the inside of a fixing frame in a negative pressure state to obtain acid leaching solution, wherein the theoretical mass ratio of the aluminum removing solution to the acid liquor is 1:0.9-1.4;
And (3) aging, namely adding alkali liquor into the pickle liquor in the inner space of the filter cartridge, aging, adjusting the pH value of the pickle liquor to be within the range of 4-5 according to the pH value of the alkali liquor, filtering by the filter cartridge, and filtering and separating to obtain the nickel-cobalt-manganese ternary precursor solid material and the lithium-containing solution.
Further, the immersion liquid comprises an acidic liquid and an alkaline liquid, the aging temperature is 5-10 ℃, stirring is carried out for 2-4 hours, the fixing frame is in a negative pressure state, and moisture in the filter cartridge is removed from the fixing frame under the negative pressure.
Compared with the prior art, the invention has the beneficial effects that:
According to the wet aluminum removal recovery reaction kettle and the recovery method for the ternary battery, through the arrangement of the filtering component and the association component, the design of the quantity of the inner parts of the filter cylinders in the fixing frame is adopted, the filter cylinders are used alternately, continuous filtration can be realized, when sediment is generated in the filter cylinders, the sediment can be adhered to the inner walls of the filter cylinders, after primary filtration is carried out in the filter cylinders, the inner walls of the filter cylinders can be cleaned by the cleaning component, meanwhile, the cleaning component rotates and rotates, the cleaning of the ternary battery can be realized, the sediment is collected by the collecting device, the sediment in the filter cylinders can be removed rapidly by the design, the reduction of the production rate of the sediment is avoided due to the existence of the sediment, and the time required by filtration is ensured.
Meanwhile, through the integral design of the device, leaching, copper removal, aluminum removal, acid leaching and aging in a recovery method can be carried out in the reaction kettle, wherein a baffle plate component exists, separation is realized between unfiltered solution and filtered solution, and a cleaning component is designed, so that sieve holes on a filter cylinder can be timely and effectively cleaned, the blocking of the sieve holes is avoided, the filtering efficiency is improved, a transmission shaft is in sliding connection with the baffle plate component, and liquid can flexibly move between the upper part and the lower part of the baffle plate component, so that stirring can be realized and meanwhile separation of the liquid can be realized.
The flow direction and the flow distribution of the liquid can be accurately controlled by the cooperation of the flow distribution device and the associated components, the liquid in the reaction process can flow according to the expected direction and flow, meanwhile, the associated components are used, the filter cylinder is used alternately, the continuous filtration of the solution is further realized, the flow distribution component is designed, the feeding direction in the flow distribution device can be controlled by the rotation of the transmission rod to be changed, the control of the flow directions in a plurality of flow distribution devices is further realized, and the feasibility of the use of the filtering device is ensured.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an isometric view of a baffle plate assembly of the present invention;
FIG. 4 is an isometric view of the interior of the mount of the present invention;
FIG. 5 is an isometric view of an associated assembly of the present invention;
FIG. 6 is an isometric view of the present invention;
FIG. 7 is a cross-sectional view of an associated assembly of the present invention;
FIG. 8 is a cross-sectional view of a cleaning assembly of the present invention;
FIG. 9 is a cross-sectional view of a shunt device of the present invention;
FIG. 10 is a front view of the present invention with the flow altering assembly;
Fig. 11 is a flow chart of the method of the present invention.
The device comprises a reaction kettle body, a 2, a baffle assembly, a 201, a baffle member, a 202, a moving inner ring, a 203, a first pump body, a 204, a pulsator, a 205, a third valve, a 3, a third motor, a 4, a filtering device, a 401, a fixing frame, a 402, a filtering cylinder, a 5, a shunting device, a 501, a shunt pipe, a 502, a deflector, a6, an associated assembly, a 601, a connecting plate, a 602, a fixed rod, a 603, a limiting frame, a 604, a transmission rod, a 605, a first telescopic member, a 606, a moving plate, a 607, a spring damping damper, a 608, a sealing cover, a 609, a connecting flexible belt, a 610, a U-shaped plate, a 7, a cleaning assembly, 701, a second motor, a 702, a turntable, a 703, a cleaning roller, a 704, a protrusion, a 705, an inner circular ring, a 706, a gear member, a 707, a sealing disk, a 8, a collecting device, a 801, a collecting box, a 802, a second telescopic member, a sealing top cover, a 9, a flow-changing assembly, a 901, a gear, a 902, a rack bar, a 903, a second gear, a 904, and a transmission member.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1-11, the invention provides a technical scheme, which comprises a reaction kettle body 1, wherein the top end of the reaction kettle body 1 is fixedly connected with a third motor 3 for controlling a transmission shaft to rotate, the outer wall of the transmission shaft is slidably connected with a baffle plate assembly 2 for dividing an inner cavity of the reaction kettle body 1 into a plurality of chambers, a discharge pipe of the reaction kettle body 1 is fixedly connected with a flow dividing device 5 for controlling the flowing direction of liquid, and the discharge end of the flow dividing device 5 is fixedly connected with a filtering device 4 for filtering particulate matters;
The filtering device 4 comprises a fixing frame 401, wherein the fixing frame 401 is fixedly arranged at the top end of the inside of the reaction kettle body 1, a filtering cylinder 402 for filtering particles is fixedly connected in the fixing frame 401, and a cleaning component 7 for cleaning the filtering cylinder 402 is arranged in the fixing frame 401;
The inside of mount 401 is equipped with the association subassembly 6 that is arranged in restricting the inside liquid outflow of cartridge filter 402 and the direction of flow of liquid in control diverging device 5, association subassembly 6 includes first extensible member 605, first extensible member 605 fixed mounting is in the inside of mount 401, the telescopic end fixedly connected with movable plate 606 of first extensible member 605, one side fixedly connected with spring damper 607 of movable plate 606, the telescopic end fixedly connected with sealed lid 608 of spring damper 607, the inside top fixedly connected with U template 610 of mount 401, sealed lid 608, the inside of U template 610 and the fixed mount 401 between the three fixedly connected with be used for avoiding liquid outflow to connect flexible band 609, sliding connection between sealed lid 608 and the movable plate 606, realize restricting the inside liquid outflow of cartridge filter 402 through the compound die between a plurality of sealed lid 608, the telescopic end of first extensible member 605 is separated through the sealed lid 608 that the flexible control originally contacted, cartridge filter 402 inner wall solution passes through the clearance between sealed lid 608, and move to the inner chamber of reation kettle 1 through the passageway that U template 610 and connecting flexible band 609 constitute.
Still further, the diaphragm assembly 2 includes a diaphragm member 201, the inner wall of the diaphragm member 201 is slidably connected with the outer wall of the transmission shaft, the outer wall of the diaphragm member 201 is rotatably connected with a moving inner ring 202, the outer wall of the moving inner ring 202 is slidably connected with the inner wall of the reaction kettle body 1, a first pump body 203 for moving the liquid above the diaphragm assembly 2 to the lower side of the diaphragm assembly 2 is installed in the moving inner ring 202, a third valve 205 for achieving the liquid above the diaphragm assembly 2 and the liquid below the diaphragm assembly 2 is installed on the moving inner ring 202, a wave wheel 204 for achieving stirring of the liquid is fixedly connected to the top end and the bottom end of the diaphragm member 201 respectively, the first pump body 203 increases the pressure of the liquid above the diaphragm assembly 2 by moving the liquid above the diaphragm assembly 2 to the lower side of the diaphragm assembly 2, the third valve 205 controls the rising of the diaphragm assembly 2, the diaphragm assembly 2 is communicated with the liquid above the liquid below the diaphragm assembly 2 due to the overall density being greater than the liquid density, and the diaphragm assembly 2 is lowered in the liquid.
Still further, the cleaning assembly 7 includes No. two motors 701, no. two motors 701 are fixedly installed in the interior of the fixing frame 401, the output end of No. two motors 701 is fixedly connected with a rotary table 702, the bottom end of the rotary table 702 is rotationally connected with the top end of the filter cartridge 402, one end of the rotary table 702 is rotationally connected with a cleaning roller 703, the outside of the cleaning roller 703 is fixedly connected with a protrusion 704 for penetrating into and cleaning the sieve mesh on the filter cartridge 402, the top end of the filter cartridge 402 is fixedly connected with an inner tooth ring 705, the top end of the cleaning roller 703 is fixedly connected with a gear piece 706, the outer wall of the gear piece 706 is meshed with the inner wall of the inner tooth ring 705, the bottom end of the cleaning roller 703 is rotationally connected with a sealing disc 707, and the outer wall of the sealing disc 707 is rotationally connected with the interior of the fixing frame 401.
Still further, the association device comprises a transmission rod 604, the bottom end of the transmission rod 604 is rotationally connected with the bottom end inside the fixing frame 401, the outer wall of the transmission rod 604 is fixedly connected with a connecting plate 601, one side of the connecting plate 601 is fixedly connected with a fixing rod 602, one side of a moving plate 606 is fixedly connected with a limiting frame 603 matched with the fixing rod 602, the feeding direction in the diversion device 5 is controlled to be changed through the rotation of the transmission rod 604, and a flow changing assembly 9 for controlling the feeding direction in the diversion device 5 to be changed based on the rotation of the transmission rod 604 is arranged between the transmission rod 604 and the diversion device 5.
Still further, the inside fixedly connected with collection device 8 of mount 401, collection device 8 includes collection box 801, and collection box 801 installs in the bottom of mount 401, and the inside fixedly connected with of collection box 801 is flexible piece No. 802, and the flexible end rotation of flexible piece No. 802 is connected with sealed top cap 803, the top of sealed top cap 803 and the bottom sliding connection of sealing disk 707.
Still further, the flow dividing device 5 comprises a flow dividing pipe 501, the discharge end of the flow dividing pipe 501 is fixed with the feed end of the filter cartridge 402, the solution in the reaction kettle body 1 moves to the inner wall of the filter cartridge 402 through the flow dividing pipe 501, the flow guiding piece 502 is rotationally connected in the flow dividing pipe 501, the top end of the transmission rod 604 penetrates through the bottom end of the flow dividing pipe 501 and the bottom end of the flow guiding piece 502 to be fixed, and a flow guiding hole for facilitating the liquid to pass through is formed in the flow guiding piece 502.
Still further, the flow changing assembly 9 includes a first gear 901, the first gear 901 is fixedly mounted at the top end of the transmission rod 604, the rack bar 902 is slidably connected in the fixing frame 401, the outer wall of the first gear 901 is meshed with one side of the rack bar 902, a second gear 903 is rotatably connected in the fixing frame 401, the outer wall of the second gear 903 is meshed with one side of the rack bar 902, the transmission piece 904 is fixedly connected at the top end of the second gear 903, and the top end of the transmission piece 904 penetrates through the bottom end of the shunt pipe 501 and is fixed with the bottom end of the flow guiding piece 502.
The wet aluminum removal recovery method for the ternary battery adopts the wet aluminum removal recovery reaction kettle for the ternary battery, and the recovery method comprises the following steps:
Mixing and stirring ternary battery black powder and water, wherein the theoretical mass ratio of the ternary battery black powder to the water is 1-1.3:1, and obtaining primary pulp;
leaching, namely stirring and mixing the primary pulp and the leaching solution in a reaction kettle body 1, wherein the theoretical mass ratio of the primary pulp to the leaching solution is 1:0.9-1.4, so as to obtain a mixed solution;
removing copper, namely moving the mixed solution in the reaction kettle body 1 to the inner space of a filter cartridge 402, adding an alkaline solution to adjust the ph of the mixed solution, controlling the ph value of the mixed solution to be in a range of 3-5, controlling the internal temperature of a fixing frame 401 to be in a range of 60-70 ℃, adding sodium thiosulfate, stirring and reacting, and filtering by using the filter cartridge 402 to obtain copper-removing mother liquor and copper precipitate, wherein the copper-removing mother liquor is moved into an inner cavity of the reaction kettle body 1;
Removing aluminum, namely moving copper removal mother liquor in the reaction kettle body 1 to the inner space of a filter cartridge 402, mixing the copper removal solution and a precipitator, filtering through the filter cartridge 402 after stirring reaction to obtain aluminum removal solution and aluminum precipitate, and moving the aluminum removal solution into an inner cavity of the reaction kettle body 1;
Acid leaching, namely moving the aluminum removing solution in the reaction kettle body 1 to the inner space of the filter cylinder 402, mixing the aluminum removing solution with acid liquor to obtain a first mixed solution, controlling the temperature to be within 90-100 ℃ for 1-2 hours, and continuously keeping the inside of the fixing frame 401 in a negative pressure state to obtain acid leaching solution, wherein the theoretical mass ratio of the aluminum removing solution to the acid liquor is 1:0.9-1.4;
Aging, namely adding alkali liquor into the pickle liquor in the inner space of the filter cartridge 402, aging, controlling the ph value of the pickle liquor to be in the range of 4-5 according to the pH value of the alkali liquor, filtering by the filter cartridge (402), and filtering and separating to obtain a nickel-cobalt-manganese ternary precursor solid material and a lithium-containing solution.
Further, the immersion liquid comprises an acidic liquid and an alkaline liquid, the aging temperature is 5-10 ℃, stirring is carried out for 2-4 hours, the fixing frame 401 is in a negative pressure state, and moisture in the filter cartridge 401 is removed from the fixing frame 401 under the negative pressure.
The inside solution of reation kettle body 1 moves to the cartridge filter 402 inside in the mount 401, this cartridge filter 402's outside is surrounded by sealed lid 608 this moment, therefore the inside solution of cartridge filter 402 can only be in the inner wall of cartridge filter 402 this moment, cleaning module 7 starts, the internal feed of cartridge filter 402 is gone up to the reposition of redundant personnel subassembly simultaneously, there is precipitate formation this moment, cleaning module 7 is in the in-process of stirring, simultaneously can clear up the precipitate that adheres to other structures, afterwards control the flexible end of telescoping member 605 and remove, make sealed lid 608 remove through the transmission, gap appears between two sealed lids 608, and then make the inside solution of cartridge filter 402 follow the gap between sealed lids 608 and get back into reation kettle body 1 inside, because of the existence of baffle subassembly 2, make the solution that has not passed through filter 4 and has passed through filter 4 separate, avoid both contacts, control the telescoping end of telescoping member 605 moves, make the gap appear originally between sealed lid 608 of wrapping up cartridge filter 402, and control the telescoping member 5 is gone up to this cartridge filter 402 through the association subassembly 6, two cartridge filter 402 carries out feeding through alternately, filter effect on the continuous filtration process is realized through the filtration operation that alternatingly.
The reaction kettle is internally provided with a heating device, the temperature of the inside of the reaction kettle and the solution inside the reaction kettle can be controlled through the heating device, the reaction kettle is provided with a plurality of through pipes which are communicated with the inside and the outside of the reaction kettle, the inside of the reaction kettle can be fed through the through pipes and controlled to be in a vacuum state through a vacuum device, the inside of the filter cylinder 402 is provided with a detecting instrument which can detect the pH value of the solution in real time, the feeding end of the flow dividing device 5 is provided with a flowmeter which can record the flow of fluid during feeding, and the quantity of the feeding of the flow dividing device 5 during feeding the filter cylinder 402 can be seen through the flowmeter.
The expansion and contraction of the expansion and contraction ends of the first expansion and contraction piece 605 and the second expansion and contraction piece 802 can be achieved respectively, the expansion and contraction ends of the first expansion and contraction piece 605 and the second expansion and contraction piece 802 exist in the prior art, the expansion and contraction ends of the first expansion and contraction piece 605 move, the moving plate 606 is controlled to move, the spring shock-absorbing damper 607 and the sealing cover 608 move synchronously, the distance between the moving plate 606 and the sealing cover 608 can be changed due to the existence of the spring shock-absorbing damper 607, and then when a plurality of sealing covers 608 form a sealing space, the spring shock-absorbing damper 607 can enable pressure to be formed between the sealing covers 608, so that stability of the sealing space in use is achieved, sealing rings are arranged between the sealing covers 608 and the filter cartridges 402, sealing degree of the sealing space can be improved due to the sealing rings, and meanwhile, the distance between the sealing covers 608 and the moving plate 606 can be changed due to the spring shock-absorbing damper 607.
As shown in fig. 2 and 3, the output end of the third motor 3 rotates, the outer wall of the transmission shaft is provided with a transmission chute, the inside of the moving inner ring 202 can be slidably connected with the outer wall of the transmission shaft through the transmission chute, the impeller 204 rotates through the transmission of the transmission shaft and the baffle member 201, the rotation of the impeller 204 can stir the solution in the reaction kettle body 1, when the reaction kettle is started, the impeller 204 starts to rotate at a high speed, the rotating impeller 204 drives water flow to generate strong vortex and impact force, the water flow and the vortex continuously roll the solution, so that the stirring purpose is realized, the output end of the third motor 3 adopts variable speed treatment, the variable speed treatment machine controls the output end of the third motor 3 to rotate, so that the output end of the third motor is not output at a stable rotation speed, the stirring effect of the impeller 204 on the solution is ensured, and when the liquid is required to be stirred in the reaction kettle body 1, the position of the baffle member 2 in the reaction kettle body 1 can be controlled, so that the stirring effect of the liquid is increased.
The pump body 203 is started to pressurize the solution below the partition plate 201, the pressure below is increased, the partition plate 201 above the solution is pressurized, then the partition plate 201 moves upwards, when the partition plate 201 needs to descend, only the valve 205 with the third number is required to be opened, the partition plate assembly 2 is higher than the solution inside the reaction kettle due to the overall density of the partition plate assembly 2, after the valve 205 with the third number is opened, the partition plate assembly 2 pressurizes the solution below, the solution moves to the position above the partition plate assembly 2 from the valve 205 with the third number, the partition plate assembly 2 descends, and the arbitrary movement of the partition plate assembly 2 in the cavity inside the reaction kettle body 1 can be controlled through the operation.
As shown in fig. 4,5 and 6, the solution can be introduced into one sealed space formed by a plurality of sealing covers 608 in the fixing frame 401 through the splitting device 5, in the solution introduction, the association component 6 is used for controlling the splitting device 5 to introduce the solution into the sealed space and introduce the precipitating agent, the solution passes through the splitting pipe 501, the flow direction of the solution is controlled by the flow guiding piece 502 through rotation, the precipitating agent used for the specific process is different because of different specific processes, the splitting device 5 for introducing the precipitating agent is provided with a splitting feeding pipe, the total valve for installing the feeding end of the splitting device 5 is controlled, the extension end of the first extension piece 605 extends and contracts, the moving plate 606 moves, the connecting plate 601 rotates through the fixing rod 602 and the limiting frame 603, the sealing cover 608 can be separated, at this time, the liquid in the filter cartridge 402 can be moved to the inside of the reaction kettle body 1 through the channel formed by connecting the flexible belt 609 and the U-shaped plate 610, the continuous filtration can be realized through the arrangement of the filter component and the association component 6 and the design of the number of the filter cartridges 402 in the fixing frame 401, the continuous filtration can be realized, when the sediment is generated in the filter cartridge 402, the sediment can be adhered to the inner wall of the filter cartridge 402, when the solution is not generated in the filter cartridge 402, the cleaning component 7 can clean the inner wall of the filter cartridge 402, the collecting device 8 collects the sediment, the design can quickly remove the sediment in the filter cartridge 402, the existence of the sediment is reduced, the reduction of the production rate of the sediment is avoided, the time required for filtration is ensured, the flow direction and the flow division of the liquid can be accurately controlled through the cooperation of the flow dividing device 5 and the association component 6, the liquid in the reaction process can flow according to the expected direction and flow, meanwhile, the related components 6 are used, the filter cartridges 402 are used alternately, continuous filtration of solution is achieved, the flow changing component 9 is designed, the rotation of the transmission rod 604 can control the feeding direction in the flow dividing device 5 to be changed, the control of the flow direction in the plurality of flow dividing devices 5 is achieved, the feasibility of the use of the filtering device 4 is guaranteed, in the flow dividing device 5 related to the flow changing component 9, the first gear 901 is fixedly connected to the outer portion of the transmission rod 604, the first gear 901 rotates, the flow guiding pieces 502 in the rest of flow dividing devices 5 rotate through the transmission of the rack rod 902, the second gear 903 and the transmission pieces 904.
The output end of the second motor 701 is used for enabling the turntable 702 and the cleaning roller 703 to rotate, the gear member 706 rotates along with the rotation of the cleaning roller 703 and is meshed with the inner tooth ring 705, the gear member 706 rotates in the rotation process, the protrusion 704 and the filter cartridge 402 synchronously rotate along with the gear member 706, and the protrusion 704 can clean the sieve holes on the filter cartridge 402 in the rotation process.
The solution after filtering can move to the reation kettle, but the existence of baffle assembly 2 in the reation kettle separates into a plurality of cavity with reation kettle inner chamber, through this mode, avoid filtering back solution and unfiltered solution and produce the contact, avoid leading to the material composition that generates the granule in the unfiltered solution to reduce, and then can influence the rate of formation of follow-up granule, consequently, baffle assembly 2's existence can divide into two cavities with the reation kettle cavity, because the cooperation of a plurality of baffle assemblies 2 for inside a plurality of cavity of dividing into of reation kettle cavity, baffle assembly 2's rotation can realize stirring the inside reation kettle cavity simultaneously, can avoid filtering back solution and unfiltered solution to produce the contact simultaneously.
By controlling the pump body 203, the solution is delivered to the chamber below the diaphragm member 201, so that the internal pressure of the chamber below is increased, the force is applied to the diaphragm member 201, and then the diaphragm member 2 is lifted, when the diaphragm member 2 is required to descend, only the valve 205 is opened, the upper chamber and the lower chamber of the diaphragm member 2 are communicated, and the diaphragm member 2 descends due to the fact that the overall density of the diaphragm member 2 is greater than that of the solution.
As shown in fig. 8, the telescopic end of the second telescopic member 802 is contracted, the sealing top cover 803 is separated from the sealing disc 707, the cleaning assembly 7 is cleaned simultaneously, at this time, water is introduced into the filter cartridge 402 through the flow dividing device 5, so that particles inside the filter cartridge 402 are flushed into the collecting box 801, at this time, gaps exist between the two sealing covers 608, the situation that water moves to the outer wall of the filter cartridge 402 can be reduced by controlling the flow rate of the water entering the filter cartridge 402 to be smaller than the available flow rate of fluid between the sealing top cover 803 and the sealing disc 707, meanwhile, a valve is installed between the discharge end of the fixing frame 401 and the feeding end of the reaction kettle, so that water enters the reaction kettle body 1 when the filter cartridge 402 is cleaned, leaching, copper removal, aluminum removal, acid leaching and aging in the recovery method can be performed in the reaction kettle through the integral design of the device, separation plate assembly 2 is realized, separation between unfiltered solution and filtered solution is realized, the mesh on the filter cartridge 402 can be timely and effectively cleaned, the filter mesh on the filter cartridge 402 is prevented from blocking, the filter shaft is improved, the sliding connection between the separation assembly 2 and the liquid can be realized, and the separation assembly 2 can be moved above the liquid can be realized simultaneously. According to the process operation, filtering in the copper removal process is firstly carried out, filtering in the aluminum removal process is carried out subsequently, filtering in the aging process is carried out simultaneously, the filtering device 4 can be adopted to realize filtering, the mixed solution and sodium thiosulfate are mixed in the process to generate copper precipitate, copper removal mother solution and precipitator are mixed to generate aluminum precipitate, alkali is added into the pickle liquor and then aging is carried out to generate a nickel-cobalt-manganese ternary precursor solid material, and the nickel-cobalt-manganese ternary precursor solid material can be treated so as to obtain the subsequent required metal material.
The conveyer pipe of reation kettle inner chamber is through No. two pump bodies and combine diverging device 5 to carry the space that sealed lid 608 constitutes with the solution, and the inner wall of sealed lid 608 and the outer wall looks adaptation of cartridge filter 402, this space inside solution receives sealed lid 608 at this moment, and then be in cartridge filter 402's inside, the continuous precipitant that lets in of another diverging device 5, precipitant and solution mix, the formation of precipitate has at this moment, the stirring to cartridge filter 402 inside solution can be realized through the rotation of oneself to the cleaning roller 703 in the cleaning component 7, in order to accelerate the formation speed of precipitate, there is the deposit at this moment inside cartridge filter 402, the position of sieve mesh position on cartridge filter 402 and the outer wall of cleaning roller 703.
The purpose of the leaching step is to dissolve out valuable metals (such as nickel, cobalt, manganese and the like) in the primary pulp by using chemical substances in the leaching solution to form a mixed solution, wherein the leaching solution is usually an acidic solution (such as sulfuric acid, hydrochloric acid and the like), and the alkaline solution is one or a combination of at least two of sodium carbonate, sodium hydroxide, calcium hydroxide, potassium hydroxide and barium hydroxide solution, and after sodium thiosulfate is added, copper ions react with sodium thiosulfate to generate insoluble copper precipitates. The method systematically realizes the effective removal of aluminum in the ternary battery black powder and the recovery of a ternary precursor of nickel, cobalt and manganese and a lithium-containing solution through the steps of size mixing, leaching, copper removal, aluminum removal, acid leaching, aging and the like, and in the steps of copper removal and aluminum removal, the effective removal of copper and aluminum is realized through adjusting the pH value and the temperature of the mixed solution and adding a specific precipitant, and meanwhile, the loss of valuable elements such as nickel, cobalt and manganese is ensured to be minimized.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the invention as defined by the appended embodiments and equivalents thereof.
Claims (9)
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