CN113394364A - Magnesium oxide coating device for preparing nickel cobalt lithium manganate cathode material - Google Patents
Magnesium oxide coating device for preparing nickel cobalt lithium manganate cathode material Download PDFInfo
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- CN113394364A CN113394364A CN202110470270.9A CN202110470270A CN113394364A CN 113394364 A CN113394364 A CN 113394364A CN 202110470270 A CN202110470270 A CN 202110470270A CN 113394364 A CN113394364 A CN 113394364A
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/12—Apparatus having only parallel elements
- B07B1/14—Roller screens
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The invention relates to the field of lithium nickel cobalt manganese oxide materials, in particular to a magnesium oxide coating device for preparing a lithium nickel cobalt manganese oxide positive electrode material. The technical problem of the invention is as follows: provides a magnesium oxide coating device for preparing a nickel cobalt lithium manganate cathode material. The technical scheme is as follows: a magnesium oxide coating device for preparing a nickel cobalt lithium manganate positive electrode material comprises a reaction box body, a control display screen, a stepping motor, a secondary rubbing system, a screening and returning system, a liquid outlet pipe and the like; the reaction box body is connected with the stepping motor through bolts. According to the invention, the magnesium oxide layer wrapping too much nickel cobalt lithium manganate material is torn off, and the nickel cobalt lithium manganate material which is not wrapped with enough magnesium oxide is rubbed, so that the magnesium oxide layer on the outer surface of the nickel cobalt lithium manganate material can be uniformly distributed, and the nickel cobalt lithium manganate positive electrode material is screened, so that the nickel cobalt lithium manganate which is not wrapped is secondarily wrapped.
Description
Technical Field
The invention relates to the field of lithium nickel cobalt manganese oxide materials, in particular to a magnesium oxide coating device for preparing a lithium nickel cobalt manganese oxide positive electrode material.
Background
Recently, nickel cobalt lithium manganate ternary materials are attracting attention, and through data tests on the performances of the materials, such as volume specific capacity, gravimetric specific capacity, circulation, safety and the like, the nickel cobalt lithium manganate material generally shows some excellent performances of the nickel cobalt lithium manganate material as a novel lithium battery positive electrode material, such as the advantages of high voltage platform, large reversible specific capacity, stable structure, good safety performance and the like.
In order to make nickel cobalt lithium manganate material have good processability in lithium ion battery production process among the prior art, need add the nickel cobalt lithium manganate into magnesium ion solution, and let in aqueous ammonia solution, make nickel cobalt lithium manganate cathode material surface adhere to magnesium oxide, but because magnesium oxide is gel material, then can prevent nickel cobalt lithium manganate's flow, can make nickel cobalt lithium manganate be wrapped up in the magnesium oxide cladding layer too much after the magnesium oxide layer forms, make the product granularity of production uneven, tap density is not enough, thereby make nickel cobalt lithium manganate cathode material's quality reduce, and based on the chemical equilibrium principle, the magnesium oxide of formation can restrain the formation of follow-up magnesium oxide, make the speed of reaction reduce, influence the production process.
In summary, a device for preparing magnesium oxide coating by using a lithium nickel cobalt manganese oxide positive electrode material is urgently needed to solve the problems.
Disclosure of Invention
In order to overcome the defects that in the prior art, in order to ensure that a nickel cobalt lithium manganate material has good processability in the production process of a lithium ion battery, the nickel cobalt lithium manganate needs to be added into a magnesium ion solution, and an ammonia solution is introduced to the solution, so that magnesium oxide is attached to the surface of a nickel cobalt lithium manganate positive electrode material, but because the magnesium oxide is a gel material, the nickel cobalt lithium manganate can be prevented from flowing, and the nickel cobalt lithium manganate can be excessively wrapped in a magnesium oxide wrapping layer after the magnesium oxide layer is formed, so that the produced product has uneven granularity and insufficient tap density, the quality of the nickel cobalt lithium manganate positive electrode material is reduced, and based on a chemical balance principle, the formed magnesium oxide can inhibit the generation of subsequent magnesium oxide, so that the reaction rate is reduced, and the production process is influenced, the technical problem of the invention is that: provides a magnesium oxide coating device for preparing a nickel cobalt lithium manganate cathode material.
The technical scheme is as follows: a magnesium oxide coating device for preparing a nickel cobalt lithium manganate positive electrode material comprises a reaction box body, a control display screen, a stepping motor, a first driving wheel, a pulling primary grinding system, a secondary grinding system, a screening and returning system, a liquid outlet pipe, a water pump, a liquid pumping pipe and a supporting frame; the reaction box body is connected with the stepping motor through bolts; the reaction box body is connected with a pulling and primary grinding system; the reaction box body is connected with a secondary rubbing system; the reaction box body is connected with a screening and returning system; the reaction box body is connected with the liquid pumping pipe; the reaction box body is connected with the supporting frame; the control display screen is connected with the supporting frame; an output shaft of the stepping motor is fixedly connected with the first driving wheel; the first driving wheel is connected with the secondary rubbing system; the pulling primary grinding system is connected with the secondary rubbing system; the secondary rubbing system is connected with the screening and returning system; the liquid outlet pipe is connected with a water pump; the liquid outlet pipe is fixedly connected with the supporting frame; the water pump is connected with the liquid pumping pipe; the water pump is connected with the supporting frame through bolts.
In a preferred embodiment of the present invention, the pulling and roughing system comprises a second transmission wheel, a first transmission shaft, a first bevel gear, a second bevel gear, a third bevel gear, a second transmission shaft, a special-shaped transmission plate, a linkage cylindrical block, a hollow connecting plate, a sliding plate, a pushing frame, a connecting column, a first connecting plate, a pulling column, a first sliding rail, a second connecting plate, a third connecting plate, a first corrugated plate, a second corrugated plate and a fourth connecting plate; the second driving wheel is fixedly connected with the first driving shaft; the second driving wheel is connected with the secondary rubbing system; the outer surface of the first transmission shaft is fixedly connected with the first bevel gear and the second bevel gear in sequence; the first transmission shaft is rotatably connected with the reaction box body through a bracket; the first bevel gear and the third bevel gear are meshed with each other; the third bevel gear is fixedly connected with the second transmission shaft; the second transmission shaft is fixedly connected with the special-shaped transmission plate; the second transmission shaft is rotatably connected with the second slide rail through a bracket; the special-shaped transmission plate is fixedly connected with the linkage cylindrical block; the special-shaped transmission plate is in transmission connection with the pushing frame; the linkage cylindrical block is in transmission connection with the hollow connecting plate; the hollow connecting plate is fixedly connected with the sliding plate; the sliding plate is rotationally connected with the pushing frame; the pushing frame is fixedly connected with the connecting column; the connecting column is fixedly connected with the first connecting plate; pulling columns distributed in a matrix manner are arranged below the first connecting plate; the two sides of the sliding plate are respectively connected with the first sliding rail and the second sliding rail in a sliding manner; the first slide rail is fixedly connected with the reaction box body; the second slide rail is fixedly connected with the reaction box body; the sliding plate is fixedly connected with the second connecting plate; the second connecting plate is fixedly connected with the third connecting plate; three groups of first wave plates are arranged on the side surface of the third connecting plate; the side surface of the first wave plate is provided with four groups of second wave plates; and the four groups of second wave plates are fixedly connected with the fourth connecting plate.
In a preferred embodiment of the present invention, the secondary grinding system comprises a third transmission shaft, a third transmission wheel, a fourth transmission wheel, a fifth transmission wheel, a fourth bevel gear, a fifth bevel gear, a fourth transmission shaft, a first flat gear, a first gear ring, a first grinding circular tube, a second gear ring, a second grinding circular tube, a double-opening feeding frame, a first cylinder, a second cylinder and a connecting bottom plate; the outer surface of the third transmission shaft is fixedly connected with a third transmission wheel, a fourth transmission wheel, a fifth transmission wheel and a fourth bevel gear in sequence; the third transmission shaft is rotatably connected with the reaction box body through a bracket; the outer ring surface of the third driving wheel is in transmission connection with the second driving wheel through a belt; the outer ring surface of the fourth driving wheel is in transmission connection with the first driving wheel through a belt; the fifth driving wheel is connected with the screening and returning system; the fourth bevel gear is meshed with the fifth bevel gear; the fifth bevel gear is fixedly connected with the fourth transmission shaft; the fourth transmission shaft is fixedly connected with the first flat gear; the fourth transmission shaft is rotatably connected with the reaction box body through a bracket; the first flat gear is meshed with the first gear ring; the first gear ring is fixedly connected with the first rubbing round pipe; the first gear ring and the second gear ring are mutually meshed; the second gear ring is fixedly connected with the second rubbing round pipe; the first rubbing round pipe is rotationally connected with the reaction box body; the second rubbing round pipe is rotationally connected with the reaction box body; the double-port feeding frame is sequentially and rotationally connected with the first rubbing round pipe and the second rubbing round pipe; the double-port feeding frame is fixedly connected with the reaction box body; a first cylinder is arranged in the first rubbing round pipe; a second cylinder is arranged in the second rubbing round pipe; the first cylinder and the second cylinder are fixedly connected with the connecting bottom plate; the connecting bottom plate is fixedly connected with the reaction box body.
In a preferred embodiment of the invention, the screening and returning system comprises a sixth driving wheel, a fifth transmission shaft, a sixth bevel gear, a seventh bevel gear, a sixth transmission shaft, a first stirring plate, a second stirring plate, a first side plate, a second side plate, an eighth bevel gear, a ninth bevel gear and a screening column; the outer ring surface of the sixth driving wheel is in transmission connection with the fifth driving wheel through a belt; the sixth driving wheel is fixedly connected with the fifth transmission shaft; the outer surface of the fifth transmission shaft is fixedly connected with a sixth bevel gear, an eighth bevel gear and a ninth bevel gear in sequence; the fifth transmission shaft is rotatably connected with the reaction box body; the sixth bevel gear is meshed with the seventh bevel gear; the seventh bevel gear is fixedly connected with the sixth transmission shaft; the outer surface of the sixth transmission shaft is fixedly connected with the first toggle plate and the second toggle plate in sequence; the sixth transmission shaft is sequentially in rotating connection with the first side plate and the second side plate; the first side plate is fixedly connected with the reaction box body; the second side plate is fixedly connected with the reaction box body; screening columns are arranged above the second stirring plate, and three groups of screening columns are arranged at equal intervals; and the three groups of screening columns are fixedly connected with the reaction box body.
In a preferred embodiment of the invention, the profile drive plate is triangular in shape and has three sides each in the shape of a curved arc.
In a preferred embodiment of the invention, a plurality of groups of pulling columns distributed in a rectangular array are arranged below the first connecting plate, and the distance between two adjacent pulling columns is specified.
In a preferred embodiment of the present invention, the first wave plate has three groups, the second wave plate has four groups, and the three groups of the first wave plates and the four groups of the second wave plates are alternately distributed in sequence.
In a preferred embodiment of the present invention, the first rubbing round tube and the first cylinder form a round tube-shaped space, and the second rubbing round tube and the second cylinder form a round tube-shaped space.
Compared with the prior art, the invention has the beneficial effects that: the invention achieves the effects of tearing off the magnesium oxide layer wrapping too much lithium nickel cobalt manganese oxide material, rubbing the lithium nickel cobalt manganese oxide material which is not wrapped with enough magnesium oxide, enabling the magnesium oxide layer on the outer surface of the lithium nickel cobalt manganese oxide material to be uniformly distributed, screening the lithium nickel cobalt manganese oxide anode material, and secondarily wrapping the uncoated lithium nickel cobalt manganese oxide, firstly adding a magnesium ion solution into a reaction box, then adding the lithium nickel cobalt manganese oxide into the magnesium ion solution, introducing an ammonia water solution, enabling the magnesium oxide to be attached to the surface of the lithium nickel cobalt manganese oxide anode material, starting a step motor to drive a first driving wheel to rotate, further driving a secondary rubbing system through a first driving wheel, driving a primary rubbing system and a screening material returning system through the secondary rubbing system, tearing off the magnesium oxide layer wrapping too much lithium nickel cobalt manganese oxide material through the primary rubbing system, and simultaneously rub the nickel cobalt lithium manganate material that does not have enough magnesium oxide, make the magnesium oxide layer of nickel cobalt lithium manganate material surface become evenly distributed, in nickel cobalt lithium manganate material enters into secondary rub system with hands, then carry out secondary rub with hands to nickel cobalt lithium manganate material through secondary rub system with hands, make the magnesium oxide layer become evenly distributed, then filter the nickel cobalt lithium manganate positive electrode material that the cladding was accomplished through screening return system, the particle diameter is not enough when the cladding is not accomplished, sieve out it through screening return system, the water pump passes through the liquid suction pipe and will not wrap the part of accomplishing and take away, continue to send into to reaction box top through the drain pipe.
Drawings
FIG. 1 is a first perspective view of the present invention;
FIG. 2 is a second perspective view of the present invention;
FIG. 3 is a schematic view of a partial first three-dimensional structure according to the present invention;
FIG. 4 is a partial second perspective view of the present invention;
FIG. 5 is a schematic view of a first perspective structure of the pulling and initial grinding system of the present invention;
FIG. 6 is a schematic diagram of a second perspective view of the pulling and initial grinding system of the present invention;
FIG. 7 is a schematic view of a partial perspective view of the pulling and initial grinding system of the present invention;
fig. 8 is a schematic perspective view of a combination of a first wave plate and a second wave plate according to the present invention;
FIG. 9 is a schematic perspective view of the secondary scrubbing system of the present invention;
FIG. 10 is a schematic view of a first partial perspective structure of the secondary scrubbing system of the present invention;
FIG. 11 is a schematic view of a second partial perspective structure of the secondary scrubbing system of the present invention;
FIG. 12 is a schematic view of a first three-dimensional structure of the material returning system of the present invention;
FIG. 13 is a schematic diagram of a second perspective structure of the material returning system of the present invention;
fig. 14 is a schematic partial perspective view of the material returning screening system of the present invention.
In the figure: 1. reaction box body, 2, control display screen, 3, stepping motor, 4, first driving wheel, 5, pulling primary grinding system, 6, secondary grinding system, 7, screening return system, 8, liquid outlet pipe, 9, water pump, 10, liquid pumping pipe, 11, supporting frame, 501, second driving wheel, 502, first transmission shaft, 503, first bevel gear, 504, second bevel gear, 505, third bevel gear, 506, second transmission shaft, 507, special-shaped transmission plate, 508, linkage cylinder block, 509, hollow connecting plate, 5010, sliding plate, 5011, pushing frame, 5012, connecting column, 5013, first connecting plate, 5014, pulling column, 5015, first sliding rail, 5016, second sliding rail, 5017, second connecting plate, 5018, third connecting plate, 5019, first wave plate, 5020, second wave plate, 5021, fourth connecting plate, 601, third transmission shaft, 602, third driving wheel, 603, fourth driving wheel, 604. a fifth transmission wheel 605, a fourth bevel gear 606, a fifth bevel gear 607, a fourth transmission shaft 608, a first flat gear 609, a first toothed ring, 6010, a first grinding circular tube, 6011, a second toothed ring, 6012, a second grinding circular tube, 6013, a double-port feeding frame, 6014, a first cylinder, 6015, a second cylinder, 6016, a connecting bottom plate, 701, a sixth transmission wheel 702, a fifth transmission shaft, 703, a sixth bevel gear 704, a seventh bevel gear, 705, a sixth transmission shaft, 706, a first shifting plate, 707, a second shifting plate, 708, a first side plate, 709, a second side plate, 7010, an eighth bevel gear 7011, a ninth bevel gear, 7012 and a screening column.
Detailed Description
Although the present invention may be described with respect to particular applications or industries, those skilled in the art will recognize the broader applicability of the invention. Those of ordinary skill in the art will recognize other factors such as: terms such as above, below, upward, downward, and the like are used to describe the accompanying drawings and are not meant to limit the scope of the invention, which is defined by the appended claims. Such as: any numerical designation of first or second, and the like, is merely exemplary and is not intended to limit the scope of the invention in any way.
Example 1
A magnesium oxide coating device prepared from a nickel cobalt lithium manganate positive electrode material is shown in figures 1-14 and comprises a reaction box body 1, a control display screen 2, a stepping motor 3, a first driving wheel 4, a pulling primary grinding system 5, a secondary grinding system 6, a screening and returning system 7, a liquid outlet pipe 8, a water pump 9, a liquid pumping pipe 10 and a support frame 11; the reaction box body 1 is connected with the stepping motor 3 through bolts; the reaction box body 1 is connected with a pulling and primary grinding system 5; the reaction box body 1 is connected with a secondary rubbing system 6; the reaction box body 1 is connected with a screening and returning system 7; the reaction box body 1 is connected with a liquid pumping pipe 10; the reaction box body 1 is connected with a supporting frame 11; the control display screen 2 is connected with the supporting frame 11; an output shaft of the stepping motor 3 is fixedly connected with the first driving wheel 4; the first driving wheel 4 is connected with a secondary rubbing system 6; the pulling primary grinding system 5 is connected with the secondary rubbing system 6; the secondary rubbing system 6 is connected with the screening and returning system 7; the liquid outlet pipe 8 is connected with a water pump 9; the liquid outlet pipe 8 is fixedly connected with the supporting frame 11; the water pump 9 is connected with the liquid extracting pipe 10; the water pump 9 is bolted to the support frame 11.
When the device is used, the device is horizontally fixed on a working plane which needs to be used, the device is externally connected with a power supply, an operator can integrally regulate and control the device by controlling the display screen 2, firstly, the device is debugged, the device starts to work after debugging is finished, firstly, magnesium ion solution is added into the reaction box body 1, then, nickel cobalt lithium manganate is added into the magnesium ion solution, ammonia solution is introduced, magnesium oxide is attached to the surface of a nickel cobalt lithium manganate anode material, then, the stepping motor 3 is started to drive the first driving wheel 4 to rotate, then, the secondary rubbing system 6 is driven by the first driving wheel 4, the primary rubbing system 5 and the screening and returning system 7 are driven by the secondary rubbing system 6, a magnesium oxide layer wrapping too much lithium nickel cobalt manganate material is torn off by pulling the primary rubbing system 5, and meanwhile, the nickel cobalt material which is not wrapped with enough magnesium oxide is rubbed, the magnesium oxide layer on the outer surface of the nickel cobalt lithium manganate material can be uniformly distributed, when the nickel cobalt lithium manganate material enters a secondary rubbing system 6, the nickel cobalt lithium manganate material is secondarily rubbed by the secondary rubbing system 6, so that the magnesium oxide layer can be uniformly distributed, then the coated nickel cobalt lithium manganate positive electrode material is screened by a screening and returning system 7, when the coating is not completed, the material has insufficient particle size, the material is screened out by the screening and returning system 7, a water pump 9 extracts the uncoated part through a liquid extracting pipe 10 and continuously feeds the uncoated part to the upper part of a reaction box body 1 through a liquid outlet pipe 8, the device achieves the purposes of tearing off the magnesium oxide layer coated with excessive nickel cobalt lithium manganate material and rubbing the nickel cobalt lithium manganate material not coated with enough magnesium oxide, so that the magnesium oxide layer on the outer surface of the nickel cobalt lithium manganate material can be uniformly distributed, and screening the nickel cobalt lithium manganate positive electrode material, and carrying out secondary coating on the nickel cobalt lithium manganate which is not coated.
The pulling primary grinding system 5 comprises a second transmission wheel 501, a first transmission shaft 502, a first bevel gear 503, a second bevel gear 504, a third bevel gear 505, a second transmission shaft 506, a special-shaped transmission plate 507, a linkage cylindrical block 508, a hollow connecting plate 509, a sliding plate 5010, a pushing frame 5011, a connecting column 5012, a first connecting plate 5013, a pulling column 5014, a first sliding rail 5015, a second sliding rail 5016, a second connecting plate 5017, a third connecting plate 5018, a first corrugated plate 5019, a second corrugated plate 5020 and a fourth connecting plate 5021; the second transmission wheel 501 is fixedly connected with the first transmission shaft 502; the second driving wheel 501 is connected with the secondary rubbing system 6; the outer surface of the first transmission shaft 502 is fixedly connected with a first bevel gear 503 and a second bevel gear 504 in sequence; the first transmission shaft 502 is rotatably connected with the reaction box body 1 through a bracket; the first bevel gear 503 and the third bevel gear 505 are engaged with each other; the third bevel gear 505 is fixedly connected with the second transmission shaft 506; the second transmission shaft 506 is fixedly connected with the special-shaped transmission plate 507; the second transmission shaft 506 is rotatably connected with the second slide rail 5016 through a bracket; the special-shaped transmission plate 507 is fixedly connected with the linkage cylindrical block 508; the special-shaped transmission plate 507 is in transmission connection with the push frame 5011; the linkage cylindrical block 508 is in transmission connection with the hollow connecting plate 509; the hollow connecting plate 509 is fixedly connected with the sliding plate 5010; the sliding plate 5010 is rotatably connected with the pushing frame 5011; the push frame 5011 is fixedly connected with the connecting column 5012; the connecting column 5012 is fixedly connected with the first connecting plate 5013; pulling columns 5014 which are distributed in a matrix manner are arranged below the first connecting plate 5013; two sides of the sliding plate 5010 are respectively in sliding connection with the first sliding rail 5015 and the second sliding rail 5016; the first slide rail 5015 is fixedly connected with the reaction box body 1; the second slide rail 5016 is fixedly connected with the reaction box body 1; the sliding plate 5010 is fixedly connected with the second connecting plate 5017; the second connecting plate 5017 is fixedly connected with the third connecting plate 5018; three groups of first wave plates 5019 are arranged on the side face of the third connecting plate 5018; the side surface of the first wave plate 5019 is provided with a second wave plate 5020, and the second wave plate 5020 is provided with four groups; the four groups of second waved plates 5020 are all fixedly connected with the fourth connecting plate 5021.
Firstly, when the nickel cobalt lithium manganate coated with magnesium oxide reaches the treatment position of the pulling and primary grinding system 5, the secondary grinding system 6 is used for driving the second transmission wheel 501, then the second transmission wheel 501 is used for driving the first transmission shaft 502 to rotate, further the first transmission shaft 502 is used for driving the first bevel gear 503 and the second bevel gear 504 to simultaneously rotate, next the first bevel gear 503 is used for driving the third bevel gear 505 to rotate, the third bevel gear 505 is used for driving the second transmission shaft 506 to transmit the special-shaped transmission plate 507, the special-shaped transmission plate 507 is in a triangular shape, three sides of the special-shaped transmission plate are in a bent arc shape, the special-shaped transmission plate 507 is used for driving the linkage cylindrical block 508 to do circular track motion, meanwhile, the linkage cylindrical block 508 slides in a through groove of the hollow connecting plate 509, further the linkage cylindrical block 508 is used for driving the hollow connecting plate 509 to do reciprocating motion, and simultaneously the hollow connecting plate drives the sliding plate 5010 to slide in the first sliding rail 5015 and the second sliding rail 5016 in a reciprocating manner, meanwhile, the sliding plate 5010 drives the pushing frame 5011 to synchronously reciprocate, and the special-shaped transmission plate 507 rotates in the pushing frame 5011, so that the pushing frame 5011 can reciprocate transversely while swinging back and forth around a connecting point with the sliding plate 5010 as an axis, and further drives the connecting column 5012, the first connecting plate 5013 and the pulling column 5014 to synchronously move, so that the pulling column 5014 can transversely move after swinging back and forth, and the pulling column 5014 can move and tear apart after penetrating into a magnesium oxide layer, and a plurality of groups of pulling columns 5014 distributed in a rectangular array are arranged below the first connecting plate 5013, the distance between two adjacent pulling columns 5014 is specified, a magnesium oxide layer wrapping excessive lithium nickel cobalt materials can be torn, and the third bevel gear 505, the second transmission shaft 506, the special-shaped transmission plate 507, the linkage cylindrical block 508, the hollow connecting plate 509, the sliding plate 5010, the pushing frame 5011, the connecting column 5012, the first connecting plate 5013, the pulling column 5014, The first sliding rail 5015, the second sliding rail 5016 and the second connecting plate 5017 are symmetrically provided with two groups in a combined manner, and the working processes are consistent, so that the magnesium oxide layer can be simultaneously torn towards two sides through the symmetrical pulling columns 5014, the third connecting plate 5018 and the first corrugated plate 5019 are driven to synchronously reciprocate while the sliding plate 5010 reciprocates, the other sliding plate 5010 drives the second corrugated plate 5020 and the fourth connecting plate 5021 to reciprocate, the first corrugated plate 5019 is provided with three groups, the second corrugated plate 5020 is provided with four groups, the three groups of the first corrugated plate 5019 and the four groups of the second corrugated plate 5020 are sequentially distributed at intervals, so that the nickel cobalt lithium manganate material which is not coated with enough magnesium oxide can be twisted when the first corrugated plate 5019 and the second corrugated plate 5020 reciprocate in a different direction, the magnesium oxide layer on the outer surface of the nickel cobalt lithium manganate material can be uniformly distributed, and the nickel cobalt lithium manganate system realizes that the magnesium oxide layer coated with the excessive magnesium oxide layer can be torn, meanwhile, the nickel cobalt lithium manganate material which is not coated with enough magnesium oxide is rubbed, so that the magnesium oxide layer on the outer surface of the nickel cobalt lithium manganate material can be uniformly distributed.
The secondary rubbing system 6 comprises a third transmission shaft 601, a third transmission wheel 602, a fourth transmission wheel 603, a fifth transmission wheel 604, a fourth bevel gear 605, a fifth bevel gear 606, a fourth transmission shaft 607, a first flat gear 608, a first toothed ring 609, a first rubbing round pipe 6010, a second toothed ring 6011, a second rubbing round pipe 6012, a double-opening feeding frame 6013, a first cylinder 6014, a second cylinder 6015 and a connecting bottom plate 6016; the outer surface of the third transmission shaft 601 is fixedly connected with a third driving wheel 602, a fourth driving wheel 603, a fifth driving wheel 604 and a fourth bevel gear 605 in sequence; the third transmission shaft 601 is rotatably connected with the reaction box body 1 through a bracket; the outer annular surface of the third driving wheel 602 is in transmission connection with the second driving wheel 501 through a belt; the outer ring surface of the fourth driving wheel 603 is in driving connection with the first driving wheel 4 through a belt; the fifth driving wheel 604 is connected with the screening and returning system 7; the fourth bevel gear 605 and the fifth bevel gear 606 are meshed with each other; the fifth bevel gear 606 is fixedly connected with a fourth transmission shaft 607; the fourth transmission shaft 607 is fixedly connected with the first flat gear 608; the fourth transmission shaft 607 is rotatably connected with the reaction box body 1 through a bracket; the first pinion 608 intermeshes with the first ring gear 609; the first gear ring 609 is fixedly connected with the first rubbing round pipe 6010; the first ring gear 609 intermeshes with the second ring gear 6011; the second toothed ring 6011 is fixedly connected with a second rubbing round pipe 6012; the first rubbing round pipe 6010 is rotatably connected with the reaction box 1; the second rubbing round pipe 6012 is rotatably connected with the reaction box 1; the double-port material feeding frame 6013 is rotatably connected with a first round rubbing pipe 6010 and a second round rubbing pipe 6012 in sequence; the double-opening material feeding frame 6013 is fixedly connected with the reaction box body 1; a first cylinder 6014 is arranged in the first rubbing round pipe 6010; a second cylinder 6015 is arranged in the second rubbing round pipe 6012; the first cylinder 6014 and the second cylinder 6015 are fixedly connected with a connecting bottom plate 6016; the connecting bottom plate 6016 is fixedly connected with the reaction box body 1.
When the lithium nickel cobalt manganese oxide material treated by the primary grinding system 5 enters the double-opening feeding frame 6013, and then enters a circular tube-shaped space formed by the first round rubbing tube 6010 and the first cylinder 6014 and a circular tube-shaped space formed by the second round rubbing tube 6012 and the second cylinder 6015 through two circular holes of the double-opening feeding frame 6013, the fourth driving wheel 603 is driven by the first driving wheel 4 to rotate, the third driving shaft 601 is driven by the fourth driving wheel 603 to rotate, the third driving wheel 602, the fifth driving wheel 604 and the fourth bevel gear 605 are driven by the third driving shaft 601, the second driving wheel 501 is driven by the third driving wheel 602 to rotate, the screening material returning system 7 is driven by the fifth driving wheel 604 to rotate, the fifth bevel gear 606 engaged with the fourth bevel gear 605 is driven to rotate, and the fourth driving shaft 607 is driven to rotate by the fifth bevel gear 606, and then drive first flat gear 608 through fourth transmission shaft 607 and rotate, and then drive first ring gear 609 through first flat gear 608 and rotate, drive second ring gear 6011 through first ring gear 609 and rotate, drive first round pipe 6010 of rubbing with the hands through first ring gear 609 and rotate, and then drive second round pipe 6012 of rubbing with the hands through second ring gear 6011 and rotate, and then through first round pipe 6010 of rubbing with the hands the lithium nickel cobalt manganese oxide material at first cylinder 6014 roll rubbing with the hands and grinding, through second round pipe 6012 of rubbing with the hands the lithium nickel cobalt manganese oxide material at second cylinder 6015 roll rubbing with the hands, carry out the secondary rubbing with the hands to the nickel cobalt lithium manganese oxide material, make the magnesia layer can become evenly distributed, this system has realized carrying out the secondary rubbing with the lithium nickel cobalt manganese oxide material, make the magnesia layer can become evenly distributed.
The screening and returning system 7 comprises a sixth driving wheel 701, a fifth transmission shaft 702, a sixth bevel gear 703, a seventh bevel gear 704, a sixth transmission shaft 705, a first toggle plate 706, a second toggle plate 707, a first side plate 708, a second side plate 709, an eighth bevel gear 7010, a ninth bevel gear 7011 and a screening column 7012; the outer annular surface of the sixth driving wheel 701 is in transmission connection with the fifth driving wheel 604 through a belt; the sixth driving wheel 701 is fixedly connected with the fifth transmission shaft 702; the outer surface of the fifth transmission shaft 702 is fixedly connected with a sixth bevel gear 703, an eighth bevel gear 7010 and a ninth bevel gear 7011 in sequence; the fifth transmission shaft 702 is rotatably connected with the reaction box body 1; the sixth bevel gear 703 and the seventh bevel gear 704 are engaged with each other; a seventh bevel gear 704 is fixedly connected with a sixth transmission shaft 705; the outer surface of the sixth transmission shaft 705 is fixedly connected with the first poking plate 706 and the second poking plate 707 in sequence; the sixth transmission shaft 705 is in turn connected with the first side plate 708 and the second side plate 709 in a rotating manner; the first side plate 708 is fixedly connected with the reaction box body 1; the second side plate 709 is fixedly connected with the reaction box body 1; screening columns 7012 are arranged above the second poking plate 707, and three groups of screening columns 7012 are arranged at equal intervals; three groups of screening columns 7012 are all fixedly connected with the reaction box body 1.
When the lithium nickel cobalt manganese oxide material treated by the secondary rubbing system 6 moves down to the screening columns 7012, three groups of screening columns 7012 are provided, the distance between two adjacent groups of screening columns 7012 is fixed, the lithium nickel cobalt manganese oxide material with the particle size smaller than the distance between two adjacent groups of screening columns 7012 continues to move down, the lithium nickel cobalt manganese oxide material with the particle size larger than the distance between two adjacent groups of screening columns 7012 stays on the screening columns 7012, at this time, the fifth driving wheel 604 drives the sixth driving wheel 701 to rotate, the sixth driving shaft 701 drives the fifth driving shaft 702 to rotate, the fifth driving shaft 702 drives the sixth bevel gear 703, the eighth bevel gear 7010 and the ninth bevel gear 7011 to simultaneously rotate, the sixth bevel gear 703 drives the seventh bevel gear 704 to rotate, the seventh bevel gear 704 drives the sixth driving shaft 705 to rotate, and the first shifting plate 706 and the second shifting plate 707 rotate through the sixth driving shaft 705, and the seventh bevel gear 704, the sixth transmission shaft 705, the first toggle plate 706 and the second toggle plate 707 are arranged in three groups at equal intervals, the eighth bevel gear 7010 and the ninth bevel gear 7011 respectively transmit the other two groups, and then the liquid flow is impacted upwards by toggling the three groups of first toggle plate 706 and second toggle plate 707, so that the lithium nickel cobalt manganese oxide material staying on the screening column 7012 is flushed away, and further the lithium nickel cobalt manganese oxide material with excessive particle size larger than the distance between the two adjacent groups of screening columns 7012 can be prevented from staying on the screening column 7012 and causing other lithium nickel cobalt manganese oxide materials with small particle size to be unable to pass through.
The special-shaped transmission plate 507 is triangular and has three sides all of curved shape.
The push frame 5011 is made to reciprocate about a connection point with the slide plate 5010 while reciprocating in the lateral direction.
A plurality of groups of pulling columns 5014 distributed in a rectangular array are arranged below the first connecting plate 5013, and the distance between every two adjacent pulling columns 5014 is specified.
The magnesium oxide layer wrapping the excessive nickel cobalt lithium manganate material can be torn off.
The first wave plates 5019 are provided with three groups, the second wave plates 5020 are provided with four groups, and the three groups of the first wave plates 5019 and the four groups of the second wave plates 5020 are sequentially distributed at intervals.
The first wavy plate 5019 and the second wavy plate 5020 can rub the lithium nickel cobalt manganese oxide material which is not coated with enough magnesium oxide during the opposite-direction reciprocating motion, so that the magnesium oxide layers on the outer surface of the lithium nickel cobalt manganese oxide material can be uniformly distributed.
The first round rubbing pipe 6010 and the first cylinder 6014 form a round pipe type space, and the second round rubbing pipe 6012 and the second cylinder 6015 form a round pipe type space.
The lithium nickel cobalt manganese oxide material can be rubbed and ground in a rolling way on the first cylinder 6014 through the first rubbing and grinding circular pipe 6010, and the lithium nickel cobalt manganese oxide material can be rubbed and ground in a rolling way on the second cylinder 6015 through the second rubbing and grinding circular pipe 6012.
The embodiments of the present invention have been described in detail with reference to the drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.
Claims (8)
1. A magnesium oxide coating device prepared from a nickel cobalt lithium manganate positive electrode material comprises a reaction box body (1), a control display screen (2), a stepping motor (3), a first transmission wheel (4), a liquid outlet pipe (8), a water pump (9), a liquid pumping pipe (10) and a supporting frame (11); the method is characterized in that: the device also comprises a pulling primary grinding system (5), a secondary rubbing system (6) and a screening and returning system (7); the reaction box body (1) is connected with the stepping motor (3) through bolts; the reaction box body (1) is connected with a pulling and primary grinding system (5); the reaction box body (1) is connected with a secondary rubbing system (6); the reaction box body (1) is connected with a screening and returning system (7); the reaction box body (1) is connected with a liquid pumping pipe (10); the reaction box body (1) is connected with the supporting frame (11); the control display screen (2) is connected with the supporting frame (11); an output shaft of the stepping motor (3) is fixedly connected with the first driving wheel (4); the first driving wheel (4) is connected with the secondary rubbing system (6); the pulling primary grinding system (5) is connected with the secondary rubbing system (6); the secondary rubbing system (6) is connected with the screening and returning system (7); the liquid outlet pipe (8) is connected with a water pump (9); the liquid outlet pipe (8) is fixedly connected with the supporting frame (11); the water pump (9) is connected with the liquid pumping pipe (10); the water pump (9) is connected with the supporting frame (11) through bolts.
2. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 1, wherein: the pulling primary grinding system (5) comprises a second transmission wheel (501), a first transmission shaft (502), a first bevel gear (503), a second bevel gear (504), a third bevel gear (505), a second transmission shaft (506), a special-shaped transmission plate (507), a linkage cylindrical block (508), a hollow connecting plate (509), a sliding plate (5010), a pushing frame (5011), a connecting column (5012), a first connecting plate (5013), a pulling column (5014), a first sliding rail (5015), a second sliding rail (5016), a second connecting plate (5017), a third connecting plate (5018), a first corrugated plate (5019), a second corrugated plate (5020) and a fourth connecting plate (5021); the second transmission wheel (501) is fixedly connected with the first transmission shaft (502); the second transmission wheel (501) is connected with the secondary rubbing system (6); the outer surface of the first transmission shaft (502) is fixedly connected with a first bevel gear (503) and a second bevel gear (504) in sequence; the first transmission shaft (502) is rotatably connected with the reaction box body (1) through a bracket; the first bevel gear (503) and the third bevel gear (505) are meshed with each other; the third bevel gear (505) is fixedly connected with the second transmission shaft (506); the second transmission shaft (506) is fixedly connected with the special-shaped transmission plate (507); the second transmission shaft (506) is rotatably connected with the second sliding rail (5016) through a bracket; the special-shaped transmission plate (507) is fixedly connected with the linkage cylindrical block (508); the special-shaped transmission plate (507) is in transmission connection with the push frame (5011); the linkage cylindrical block (508) is in transmission connection with the hollow connecting plate (509); the hollow connecting plate (509) is fixedly connected with the sliding plate (5010); the sliding plate (5010) is rotatably connected with the pushing frame (5011); the pushing frame (5011) is fixedly connected with the connecting column (5012); the connecting column (5012) is fixedly connected with the first connecting plate (5013); pulling columns (5014) distributed in a matrix manner are arranged below the first connecting plate (5013); the two sides of the sliding plate (5010) are respectively in sliding connection with the first sliding rail (5015) and the second sliding rail (5016); the first sliding rail (5015) is fixedly connected with the reaction box body (1); the second sliding rail (5016) is fixedly connected with the reaction box body (1); the sliding plate (5010) is fixedly connected with the second connecting plate (5017); the second connecting plate (5017) is fixedly connected with the third connecting plate (5018); three groups of first wave plates (5019) are arranged on the side surface of the third connecting plate (5018); the side surface of the first wave plate (5019) is provided with a second wave plate (5020), and the second wave plate (5020) is provided with four groups; the four groups of second wave plates (5020) are fixedly connected with the fourth connecting plate (5021).
3. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 2, wherein: the secondary rubbing system (6) comprises a third transmission shaft (601), a third transmission wheel (602), a fourth transmission wheel (603), a fifth transmission wheel (604), a fourth bevel gear (605), a fifth bevel gear (606), a fourth transmission shaft (607), a first flat gear (608), a first toothed ring (609), a first rubbing round pipe (6010), a second toothed ring (6011), a second rubbing round pipe (6012), a double-opening feeding frame (6013), a first cylinder (6014), a second cylinder (6015) and a connecting bottom plate (6016); the outer surface of the third transmission shaft (601) is fixedly connected with a third transmission wheel (602), a fourth transmission wheel (603), a fifth transmission wheel (604) and a fourth bevel gear (605) in sequence; the third transmission shaft (601) is rotatably connected with the reaction box body (1) through a bracket; the outer ring surface of the third driving wheel (602) is in transmission connection with the second driving wheel (501) through a belt; the outer ring surface of the fourth driving wheel (603) is in driving connection with the first driving wheel (4) through a belt; the fifth driving wheel (604) is connected with the screening and returning system (7); the fourth bevel gear (605) and the fifth bevel gear (606) are meshed with each other; the fifth bevel gear (606) is fixedly connected with a fourth transmission shaft (607); the fourth transmission shaft (607) is fixedly connected with the first flat gear (608); the fourth transmission shaft (607) is rotatably connected with the reaction box body (1) through a bracket; the first pinion (608) is intermeshed with the first ring gear (609); the first gear ring (609) is fixedly connected with the first rubbing round pipe (6010); the first toothed ring (609) and the second toothed ring (6011) are meshed with each other; the second toothed ring (6011) is fixedly connected with a second rubbing round pipe (6012); the first rubbing round pipe (6010) is rotationally connected with the reaction box body (1); the second rubbing round pipe (6012) is rotationally connected with the reaction box body (1); the double-opening material feeding frame (6013) is sequentially and rotatably connected with the first rubbing round pipe (6010) and the second rubbing round pipe (6012); the double-opening material feeding frame (6013) is fixedly connected with the reaction box body (1); a first cylinder (6014) is arranged in the first rubbing round pipe (6010); a second cylinder (6015) is arranged in the second rubbing round pipe (6012); the first cylinder (6014) and the second cylinder (6015) are fixedly connected with a connecting bottom plate (6016); the connecting bottom plate (6016) is fixedly connected with the reaction box body (1).
4. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 3, wherein: the screening and returning system (7) comprises a sixth driving wheel (701), a fifth driving shaft (702), a sixth bevel gear (703), a seventh bevel gear (704), a sixth driving shaft (705), a first poking plate (706), a second poking plate (707), a first side plate (708), a second side plate (709), an eighth bevel gear (7010), a ninth bevel gear (7011) and a screening column (7012); the outer ring surface of the sixth driving wheel (701) is in transmission connection with the fifth driving wheel (604) through a belt; the sixth driving wheel (701) is fixedly connected with the fifth transmission shaft (702); the outer surface of the fifth transmission shaft (702) is fixedly connected with a sixth bevel gear (703), an eighth bevel gear (7010) and a ninth bevel gear (7011) in sequence; the fifth transmission shaft (702) is rotatably connected with the reaction box body (1); the sixth bevel gear (703) and the seventh bevel gear (704) are meshed with each other; the seventh bevel gear (704) is fixedly connected with a sixth transmission shaft (705); the outer surface of the sixth transmission shaft (705) is fixedly connected with the first poking plate (706) and the second poking plate (707) in sequence; the sixth transmission shaft (705) is sequentially connected with the first side plate (708) and the second side plate (709) in a rotating manner; the first side plate (708) is fixedly connected with the reaction box body (1); the second side plate (709) is fixedly connected with the reaction box body (1); screening columns (7012) are arranged above the second poking plate (707), and three groups of screening columns (7012) are arranged at equal intervals; three groups of screening columns (7012) are all fixedly connected with the reaction box body (1).
5. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 4, wherein: the special-shaped transmission plate (507) is in a triangular shape, and three sides of the special-shaped transmission plate are all in a bent arc shape.
6. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 5, wherein: a plurality of groups of pulling columns (5014) distributed in a rectangular array are arranged below the first connecting plate (5013), and the distance between every two adjacent pulling columns (5014) is specified.
7. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 6, wherein: the first wave plates (5019) are provided with three groups, the second wave plates (5020) are provided with four groups, and the three groups of the first wave plates (5019) and the four groups of the second wave plates (5020) are sequentially distributed at intervals.
8. The device for preparing the magnesium oxide coating by using the nickel cobalt lithium manganate cathode material as claimed in claim 7, wherein: the first rubbing round pipe (6010) and the first column (6014) form a round pipe type space, and the second rubbing round pipe (6012) and the second column (6015) form a round pipe type space.
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| CN113394364B (en) | 2023-01-03 |
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