Reactor for Ni, Mn, Co ternary prime system row precursor synthesis
Technical field
This utility model relates to a kind of reactor, is mainly used in the reaction of Ni, Mn, Co ternary prime system row precursor synthesis
Still.
Background technology
Lithium ion battery is the secondary cell mutually converted between a kind of chemically based energy and electric energy, owing to it has higher
The feature such as energy density, long circulation life, low self-discharge rate and environmental friendliness, obtained increasingly being widely applied.Ni、
Mn, Co ternary prime system row lithium ion anode material, for traditional cobalt acid lithium material, has discharge capacity height, low cost
Honest and clean, pollution-free, safety relatively advantages of higher, has broad application prospects.
The synthesis of Ni, Mn, Co ternary prime system row lithium ion anode material usually uses Ni, Mn, Co ternary precursor to mix
Lithium sintering, therefore the physical and chemical indexes of ternary precursor, shape characteristic will directly affect Ni, Mn, Co ternary prime system and just arrange
The performance of pole material.Reactor as synthesis presoma main device, its structure and run time within fluid form pair
The physical and chemical indexes of ternary precursor and pattern have important impact.
Deficiency structurally deposited by existing reactor, and during operation, the flow morphology within reactor is disorderly, causes crystallization
During nucleus growth chaotic, the precursor spherical degree of synthesis is poor, and tap density is low, does not reaches ternary prime system row positive electrode
Performance and structural requirement.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiencies in the prior art, it is provided that a kind of for Ni, Mn, Co
The reactor of ternary prime system row precursor synthesis;It is uniform that it can make reaction feed liquid enter the Elemental redistribution after still, good sphericity, jolt ramming
The technical specification such as density and apparent density all reaches top grade, can meet the ternary material forerunner of manufacturing requirements by continuous synthesis
Body.
For solving above-mentioned technical problem, the technical scheme that the utility model proposes is:
A kind of reactor for Ni, Mn, Co ternary prime system row precursor synthesis, including kettle, described kettle top sets
Having motor, be provided with shaft in kettle, the upper end of described shaft is connected with motor output shaft, the lower end installing of described shaft
There is the upper and lower spaced apart stirring paddle of many groups;The described stirring paddle of many groups is combined by flat board stirring paddle and oblique leaf stirring paddle.
Further improvement as to technique scheme:
Preferably, described stirring paddle is provided with three groups, be followed successively by from top to bottom four leaf flat board stirring paddles, four oblique leaf stirring paddles and
Two oblique leaf stirring paddles.
Preferably, oar footpath is still footpath the 1/2 ~ 2/3 of described four leaf flat board stirring paddles, the 1/10 ~ 1/5 of oar a width of oar footpath;
The blade level inclination of described four oblique leaf stirring paddles is 45 °, and oar footpath is the 1/2 ~ 2/3 of still footpath, the 1/10 ~ 1/5 of oar a width of oar footpath;
The blade level inclination of described two oblique leaf stirring paddles is 45 °, and oar footpath is the 1/3 ~ 1/2 of still footpath, the 1/10 ~ 1/5 of oar a width of oar footpath.
Preferably, the top of described kettle is provided with charging aperture, is provided with the charging that multiple and described charging aperture connects in kettle
Pipeline, described feed pipe extends downward 20-30 centimeters above described two oblique leaf stirring paddles along inner wall of kettle.
Preferably, described inner wall of kettle be bolted three pieces uniform can the side shield of height up and down, institute
State width is still footpath the 1/20 ~ 1/10 of side shield, a length of still of side shield high 1/2 ~ 2/3.
Preferably, the top of described kettle is provided with the slurry overfall arranged diagonally downward, described slurry overfall and still
Angle between body is 80 °.
Preferably, described shaft includes being threaded connection semiaxis and lower semiaxis on all-in-one-piece, described lower semiaxis
The diameter of axle is the 1/2 ~ 2/3 of the diameter of axle of upper semiaxis.
Preferably, described kettle top and bottom are ellipse head, and the blade diameter length ratio of kettle is 1/2 ~ 2/3.
Preferably, the bottom of described kettle is provided with sewage draining exit.
Compared with prior art, the utility model has the advantage of:
Reactor for Ni, Mn, Co ternary prime system row precursor synthesis of the present utility model, reasonable in design, stir
Mixing and arrange the many groups of stirring paddles combined by flat board stirring paddle and oblique leaf stirring paddle on axle, flat board stirring paddle therein can make
The complete disperse of reaction mass, promotes growing up of nucleus, and oblique leaf stirring paddle has the strongest shearing force and vertical propulsion capability, not only
Can strengthening stir, moreover it is possible to provide a powerful downward propulsive force, it is simple to form a more stable nucleation district.Make reaction
It is fast that feed liquid enters the rate of dispersion after still, and Elemental redistribution is uniform, and good sphericity, the technical specification such as tap density and apparent density all reaches
To top grade, the technological requirement that ternary material precursor produces can be met completely.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of this utility model preferred embodiment.
Fig. 2 is the plan structure schematic diagram of four leaf flat board stirring paddles in this utility model.
Fig. 3 is the plan structure schematic diagram of four oblique leaf stirring paddles in this utility model.
Fig. 4 is the plan structure schematic diagram of two oblique leaf stirring paddles in this utility model.
In figure:
1, motor;2, kettle;3, shaft;4, slurry overfall;5, four leaf flat board stirring paddle;6, four oblique leaf stirring paddle;
7, side shield;8, two oblique leaf stirring paddle;9, charging aperture;10, sewage draining exit.
Detailed description of the invention
For the ease of understanding this utility model, below in conjunction with Figure of description and preferred embodiment to this utility model
Make more comprehensively, describe meticulously, but protection domain of the present utility model is not limited to embodiment in detail below.
As shown in Figure 1 to 4, a kind of anti-for Ni, Mn, Co ternary prime system row precursor synthesis of the present utility model
Answering still embodiment, including kettle 2, kettle 2 uses stainless steel, and its top and bottom are ellipse head, and the footpath of kettle 2 is high
Ratio 1/2 ~ 2/3, volume is 50 ~ 200L;Kettle 2 top is provided with charging aperture 9 and motor 1, and bottom is provided with sewage draining exit 10.Motor 1
Output shaft connects the shaft 3 in kettle 2, the lower end of shaft 3 be equiped with 3 groups spaced apart by flat board stirring paddle with oblique leaf
The stirring paddle that stirring paddle combines.In this utility model, flat board stirring paddle can make the complete disperse of reaction mass, promotes nucleus
Grow up, oblique leaf stirring paddle has the strongest shearing force and vertical propulsion capability, can not only strengthen stirring, moreover it is possible to provide one strong
Big downward propulsive force, can greatly improve direct fluid in still, it is simple to form a more stable nucleation district.Make reaction material
It is fast that liquid enters the rate of dispersion after still, and Elemental redistribution is uniform, and good sphericity, the technical specification such as tap density and apparent density all reaches
Top grade, can meet the technological requirement that ternary material precursor produces completely.
In the present embodiment, shaft 3 includes being threaded connection semiaxis and lower semiaxis, the diameter of axle of lower semiaxis on all-in-one-piece
Be upper semiaxis the diameter of axle 1/2 ~ 2/3, stirring paddle is installed on lower semiaxis, it is simple to the replacing of stirring paddle.Stirring on lower semiaxis
Oar is followed successively by the four oblique leaf stirring paddle of leaf flat board stirring paddle 5, four 6 and two oblique leaf stirring paddles 8 from top to bottom.Four leaf flat board stirring paddles 5
Oar footpath is still footpath 1/2 ~ 2/3, the 1/10 ~ 1/5 of oar a width of oar footpath;The blade level inclination of four oblique leaf stirring paddles 6 is 45 °,
Oar footpath is the 1/2 ~ 2/3 of still footpath, the 1/10 ~ 1/5 of oar a width of oar footpath;The blade level inclination of two oblique leaf stirring paddles 8 is 45 °, oar
Footpath is the 1/3 ~ 1/2 of still footpath, the 1/10 ~ 1/5 of oar a width of oar footpath.
In the present embodiment, the side, top of kettle 2 is provided with slurry overfall 4, and slurry overfall 4 is arranged diagonally downward, its
And the angle between kettle 2 is 80 °, it is simple to directly connect with other reactor.Kettle 2 inwall is provided with three pieces of side shields 7, side
The width of baffle plate 7 is the 1/20 ~ 1/10 of still footpath, a length of still high 1/2 ~ 2/3, it is evenly distributed on kettle 2 inwall, every piece of side
Baffle plate 7 is all tightened by bolts so that it is bottom is Height Adjustable relatively, and baffling is effective.Multiple and charging it is additionally provided with in kettle 2
The feed pipes of mouth 9 connection, multiple feed pipes all extend downward the top 20-30 of two oblique leaf stirring paddles 8 along kettle 2 inwall
Centimeters.
In use, metering system is passed through from kettle by the common metal saline solution prepared, liquid caustic soda solution, ammonia spirit
The charging aperture at top injects, under the effect of stirrer paddle, and dispersion, mixing, produce nucleus, then nucleus growth, pass through slurry
Overfall flows out, and this process is continuous feed, successive reaction, continuous overflow discharging.
Above content is only to this utility model structure example and explanation, the technology people of affiliated the art
Described specific embodiment is made various amendment or supplements or use similar mode to substitute, without departing from reality by member
By novel structure or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.