CN108862396A - A kind of manganate cathode material for lithium fully-automatic production system - Google Patents
A kind of manganate cathode material for lithium fully-automatic production system Download PDFInfo
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- CN108862396A CN108862396A CN201810814550.5A CN201810814550A CN108862396A CN 108862396 A CN108862396 A CN 108862396A CN 201810814550 A CN201810814550 A CN 201810814550A CN 108862396 A CN108862396 A CN 108862396A
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- intermediate bunker
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- rotary furnace
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- material bin
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G45/00—Compounds of manganese
- C01G45/12—Manganates manganites or permanganates
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Abstract
The invention discloses a kind of manganate cathode material for lithium fully-automatic production systems; including sequentially connected material bin, measuring chute, pelletizer, rotary furnace, pulverizer, mixing apparatus, vibrating screen and equipment for removing ferric ion; vacuum conveying apparatus is provided on material bin; raw material are delivered to material bin by vacuum conveying apparatus; at least one spray head is provided at the top of pelletizer; it is provided with the first intermediate bunker between rotary furnace and rotary furnace, the second intermediate bunker is provided between rotary furnace and pulverizer.Manganate cathode material for lithium fully-automatic production system of the invention can greatly improve sintering production capacity, avoid metallic foreign body from being introduced into material, and improve yield rate.
Description
Technical field
The present invention relates to technical field of lithium batteries, in particular to a kind of manganate cathode material for lithium fully-automatic production system.
Background technique
Currently, the mainstream production technology of anode material of lithium battery LiMn2O4 is:Raw material mixing material, pusher furnace or roller furnace
Sintering, coarse crushing, finely divided, mixed batch, screening, except iron, packaging etc..
Wherein, the maximum equipment that consumes energy in production process is sintering furnace, mainly pusher furnace or roller furnace, is all static burning
Knot, and need to contain material using pallet and saggar etc., the demand of one side pallet or saggar and loss are bigger, separately
On the one hand a big chunk heat is needed to be taken away by saggar, the utilization rate of energy is relatively low;Sintered material agglomeration also needs brokenly
The processes such as broken, crushing and classification, on the one hand increase operational sequence, and the process on the other hand crushed causes a part of LiMn2O4 to occur
Cross crushing, it is also necessary to separate, reduce the yield rate of LiMn2O4, and increase the energy consumption and cost of production.
So the LiMn2O4 production line of the prior art has the following problems:There are sintering energy consumptions for entire production process greatly, week
The time that phase is long, saggar service life is short, complicated for operation, production efficiency is low, uneven heating, heat preservation are cooling is not easy to control etc. to be lacked
Point easily causes burning or raw burn, subsequent coarse crushing and finely divided process, and not only the degree of automation is lower, but also excessively after crushing
Cause the effective rate of utilization of lithium manganate material relatively low, totle drilling cost increases.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of manganate cathode material for lithium fully-automatic production systems, existing to solve
Have in technology sintering energy consumption is big, the period is long, saggar service life is short, complicated for operation, production efficiency is low, uneven heating, heat preservation it is cold
But time is not easy to control, and the degree of automation is lower, and causes the effective rate of utilization of lithium manganate material relatively low after crossing crushing, always
The problems such as cost increases.
In order to solve the above-mentioned technical problem, the technical scheme is that:
A kind of manganate cathode material for lithium fully-automatic production system, including at least one sequentially connected feeding system, granulation
Machine, rotary furnace, pulverizer, mixing apparatus, vibrating screen and equipment for removing ferric ion,
The feeding system includes sequentially connected material bin and measuring chute, is provided with vacuum handling on the material bin and sets
Standby, raw material are delivered to the material bin by the vacuum conveying apparatus,
The pelletizer inner top is provided at least one spray head, and small powder adding mouth is additionally provided on the pelletizer,
The first intermediate bunker is provided between the rotary furnace and the pelletizer,
The second intermediate bunker is provided between the rotary furnace and the pulverizer,
The material bin, measuring chute, pelletizer, rotary furnace, pulverizer, mixing apparatus, vibrating screen, equipment for removing ferric ion, first
The inner wall of intermediate bunker and the second intermediate bunker is provided with non-metallic inner liner.
Optionally:The input terminal bottom of the rotary furnace is provided with support device, and the support device makes the rotary furnace
Input terminal be higher than the output end of the rotary furnace, the liner of the rotary furnace is prism, and the liner of the liner is ceramics
Piece.
Optionally:The shape of the liner is hexagonal prism or eight prisms.
Optionally:It is respectively arranged with high charge level meter and low level-sensing device on the material bin, is set on the material bin feed inlet
It is equipped with material bin switch, the high charge level meter and the low level-sensing device are separately connected controller, and the controller is also connected with described
Material bin switch, the controller is based on according to the high charge level and the signal of the low level-sensing device transmission controls the material
Storehouse switch closes or opens.
Optionally:The position of the 8/10-9/10 of the material bin volume, the low level-sensing device is arranged in the high charge level meter
The position of the 1/10-2/10 of the material bin volume is set.
Optionally:It is provided with weight sensor on the measuring chute, is provided with measuring chute on the measuring chute feed inlet and opens
It closes, the controller is also connected with the measuring chute switch, and the controller is used for the signal transmitted according to the weight sensor
Control closing or opening for the measuring chute switch.
Optionally:High charge level meter and low level-sensing device, first middle material are respectively arranged on first intermediate bunker
The first intermediate bunker switch is provided on the feed inlet of storehouse, the high charge level meter and the low level-sensing device are separately connected controller, institute
It states controller and is also connected with first intermediate bunker switch, the controller is based on according to the high charge level and the low material position
The signal of meter transmission controls closing or opening for the first intermediate bunker switch.
Optionally:High charge level meter and low level-sensing device, second middle material are respectively arranged on second intermediate bunker
The second intermediate bunker switch is provided on the feed inlet of storehouse, the high charge level meter and the low level-sensing device are separately connected controller, institute
It states controller and is also connected with second intermediate bunker switch, the controller is based on according to the high charge level and the low material position
The signal of meter transmission controls closing or opening for the second intermediate bunker switch.
Optionally:The pelletizer is mixed at high speed pelletizer, and the mixed at high speed pelletizer is additionally provided with shearing equipment.
By adopting the above technical scheme, due to replacing pusher furnace in the prior art or roller furnace to LiMn2O4 using rotary furnace
Positive electrode is sintered, and can greatly improve sintering production capacity;The inner wall of rotary furnace is covered with potsherd, is avoided that metallic foreign body draws
Enter in material;Powder can be made using mixed at high speed Granulation Equipments by spherical particulate material before sintering, enhance material
Mobility reduces the specific surface area of material, is able to achieve material and preferably stirs in rotary furnace, can be to avoid material in sintering
Viscous wall reduces the agglomeration of LiMn2O4 material, and the difficulty of later period pulverization process reduces, and progress simply breaks up depolymerization, avoids producing
The micro mist crushed was given birth to, yield rate is improved.
Detailed description of the invention
Fig. 1 is the structure flow chart of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 2 is the structural schematic diagram of the feeding system of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 3 is the structural schematic diagram of the pelletizer of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 4 is the structural schematic diagram of the first intermediate bunker of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 5 is the structural schematic diagram of the rotary furnace of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 6 is the structural schematic diagram of the pulverizer of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 7 is the structural schematic diagram of the mixing apparatus of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 8 is the structural schematic diagram of the vibrating screen of manganate cathode material for lithium fully-automatic production system of the present invention;
Fig. 9 is the structural schematic diagram of the equipment for removing ferric ion of manganate cathode material for lithium fully-automatic production system of the present invention;
In figure, 1- vacuum conveying apparatus, 2- material bin, 21- high charge level meter, the low level-sensing device of 22-, 3- measuring chute, 4- granulation
Machine, 41- small powder adding mouth, the first intermediate bunker of 5-, 51- high charge level meter, the low level-sensing device of 52-, 6- rotary furnace, 7- pulverizer, 8-
Mixing apparatus, 9- vibrating screen, 10- equipment for removing ferric ion.
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing.It should be noted that for
The explanation of these embodiments is used to help understand the present invention, but and does not constitute a limitation of the invention.In addition, disclosed below
The each embodiment of the present invention involved in technical characteristic can be combined with each other as long as they do not conflict with each other.
A kind of manganate cathode material for lithium fully-automatic production system, as shown in Fig. 1, including it is sequentially connected at least one
Material system, pelletizer, rotary furnace, pulverizer, mixing apparatus, vibrating screen and equipment for removing ferric ion, in an embodiment of the present invention, including
Two feeding systems.
Wherein, Fig. 2 show the structural schematic diagram of feeding system, and arrow indicates the circulation direction of material, feeding system in figure
System includes sequentially connected material bin 2 and measuring chute 3, and vacuum conveying apparatus 1 is provided on material bin, and raw material are defeated by vacuum
Equipment 1 is sent to be delivered to material bin 2, measuring chute 3 is for realizing weighing ingredient.
It is respectively arranged with high charge level meter 21 and low level-sensing device 22 on material bin 2, is provided with material bin on material bin feed inlet
Switch, high charge level meter 21 and low level-sensing device 22 are separately connected controller, and controller is also connected with material bin switch, and controller is used for root
The signal control material bin switch transmitted according to high charge level meter and low level-sensing device closes or opens;High charge level meter 21 is arranged in material
The position of the 1/10-2/10 of material bin volume is arranged in the position of the 8/10-9/10 of warehouse product, low level-sensing device 22.
Any measuring chute with weighing ingredient, such as measuring chute in the prior art in the prior art can be used in measuring chute 3
It is typically arranged with weight sensor, the real-time weight of material in measuring chute is obtained by weight sensor, in the weight for reaching needs
When amount, the input port that controller controls measuring chute is closed, and stops the input of material, to realize the weighing effect of measuring chute.?
This is only illustrated the action principle of some measuring chutes, and other modes realize that the measuring chute of weighing effect is all applied to this
In the embodiment of invention.
In an embodiment of the present invention, pelletizer 4 is mixed at high speed pelletizer, as shown in Fig. 3, mixed at high speed pelletizer
Inside is additionally provided with shearing equipment, and shearing equipment is provided on pelletizer can reduce the specific surface area and mixed material of material
Mobility.
4 inner top of pelletizer is provided at least one spray head, and small powder adding mouth 41, pelletizer top are additionally provided on pelletizer
Portion be provided with spray head can the preferable mixing granulation that must realize material, the material of generation is in spherical particle, has preferable stream
Dynamic property;Small powder adding mouth 41 can according to need the effects of increase for carrying out material.
It is provided with the first intermediate bunker 5 between rotary furnace 6 and pelletizer 4, as shown in Fig. 4, divides on the first intermediate bunker 5
It is not provided with high charge level meter 51 and low level-sensing device 52, the first intermediate bunker switch is provided on 5 feed inlet of the first intermediate bunker, it is high
Level-sensing device 51 and low level-sensing device 52 are separately connected controller, and controller is also connected with the first intermediate bunker switch, and controller is used for root
Closing or opening for the first intermediate bunker switch is controlled according to the signal that high charge level meter 51 and low level-sensing device 52 transmit.
It is provided with the second intermediate bunker between rotary furnace 6 and pulverizer, is respectively arranged with high charge level on the second intermediate bunker
Meter and low level-sensing device are provided with the second intermediate bunker switch, high charge level meter and the score of low material position on the second intermediate bunker feed inlet
Not Lian Jie controller, controller be also connected with the second intermediate bunker switch, controller by according to high charge level based on low level-sensing device biography
Defeated signal controls closing or opening for the second intermediate bunker switch.
In order to guarantee not introduce metallic foreign body during material production, all and material directly contact part increases ceramics
Or non-metallic inner liner, in an embodiment of the present invention, material bin 2, pelletizer 4, rotary furnace 6, pulverizer 7, mixes measuring chute 3
The inner wall for closing equipment 8, vibrating screen 9, equipment for removing ferric ion 10, the first intermediate bunker 5 and the second intermediate bunker is provided in nonmetallic
Lining.
In an embodiment of the present invention, the input terminal bottom of rotary furnace 6 is provided with support device 61, as shown in Fig. 5, branch
Support arrangement 61 makes rotary furnace and horizontal plane have 5-15 ° of inclination angle, and in an embodiment of the present invention, which is 6 °, to rotary furnace
6 are provided with inclination angle, and the continuity that material in rotary furnace 6 circulates may be implemented, in an embodiment of the present invention, rotary furnace 6 it is interior
Wall is made of high temperature resistant inconel and is covered with potsherd in inner wall inner surface welding, to prevent being mixed into metal impurities.
In order to increase the liner support strength of rotary furnace 6, the liner of rotary furnace 6 does not use circle, and is arranged to six ribs
Cylinder shape, the liner of liner are potsherd.
Attached drawing 6 is the structural schematic diagram of the pulverizer 7 of the embodiment of the present invention, and attached drawing 7 is that the mixing of the embodiment of the present invention is set
Standby 8 structural schematic diagram, attached drawing 8 are the structural schematic diagram of the vibrating screen 9 of the embodiment of the present invention, and attached drawing 9 is the embodiment of the present invention
Equipment for removing ferric ion 10 structural schematic diagram.
In an embodiment of the present invention, vibrating screen 9 is ultrasonic activation sieve,
What manganate cathode material for lithium fully-automatic production system of the invention specifically worked in this way:
Lithium manganate cathode is prepared into material (two kinds of main materials:Electrolytic manganese dioxide and lithium carbonate) pass through vacuum handling respectively
Equipment is delivered to material bin, and then material respectively enters measuring chute weighing and enters pelletizer progress mixed at high speed granulation, in this hair
The incorporation time of the pelletizer is 15-30min in bright embodiment, and revolving speed is 500-800 revs/min;
The material handled through pelletizer is temporary into the first intermediate bin, when material is lower than the high charge level meter of the first intermediate bin
When, material enters rotary furnace, sinters the material of aggregating state into;
The material of the reunion shape handled through rotary furnace is temporary into the second intermediate bin, when material is lower than the height of the second intermediate bin
When level-sensing device, the material of reunion shape enters pulverizer crushing and breaks up;
Material after breaing up enters mixing apparatus mixing;
After mixed LiMn2O4 finished product materials are most sieved through ultrasonic activation afterwards, equipment for removing ferric ion electromagnetism removes iron also
Automatic packaging system can be finally entered and be packaged into finished product.
In conjunction with attached drawing, the embodiments of the present invention are described in detail above, but the present invention is not limited to described implementations
Mode.For a person skilled in the art, in the case where not departing from the principle of the invention and spirit, to these embodiments
A variety of change, modification, replacement and modification are carried out, are still fallen in protection scope of the present invention.
Claims (9)
1. a kind of manganate cathode material for lithium fully-automatic production system, it is characterised in that:Including at least one sequentially connected feeding
System, pelletizer, rotary furnace, pulverizer, mixing apparatus, vibrating screen and equipment for removing ferric ion,
The feeding system includes sequentially connected material bin and measuring chute, is provided with vacuum conveying apparatus on the material bin,
Raw material are delivered to the material bin by the vacuum conveying apparatus,
The pelletizer inner top is provided at least one spray head, and small powder adding mouth is additionally provided on the pelletizer,
The first intermediate bunker is provided between the rotary furnace and the pelletizer,
The second intermediate bunker is provided between the rotary furnace and the pulverizer,
The material bin, measuring chute, pelletizer, rotary furnace, pulverizer, mixing apparatus, vibrating screen, equipment for removing ferric ion, among first
The inner wall of feed bin and the second intermediate bunker is provided with non-metallic inner liner.
2. system according to claim 1, it is characterised in that:The input terminal bottom of the rotary furnace is provided with support dress
It sets, the support device makes the input terminal of the rotary furnace higher than the output end of the rotary furnace, and the liner of the rotary furnace is
Prism, the liner of the liner are potsherd.
3. system according to claim 2, it is characterised in that:The shape of the liner is hexagonal prism or eight prisms.
4. system according to claim 2, it is characterised in that:High charge level meter and low material are respectively arranged on the material bin
Position is counted, and material bin switch is provided on the material bin feed inlet, the high charge level meter and the low level-sensing device are separately connected control
Device processed, the controller are also connected with material bin switch, and the controller is based on according to the high charge level and the low material
The signal of position meter transmission controls closing or opening for the material bin switch.
5. system according to claim 4, it is characterised in that:The 8/ of the material bin volume is arranged in the high charge level meter
Position, the position of the 1/10-2/10 of the material bin volume is arranged in the low level-sensing device.
6. system according to claim 4, it is characterised in that:Weight sensor, the meter are provided on the measuring chute
Measuring chute switch is provided on amount storehouse feed inlet, the controller is also connected with the measuring chute switch, and the controller is used for root
Closing or opening for the measuring chute switch is controlled according to the signal that the weight sensor transmits.
7. system according to claim 6, it is characterised in that:High charge level meter is respectively arranged on first intermediate bunker
With low level-sensing device, it is provided with the first intermediate bunker switch on the first intermediate bunker feed inlet, the high charge level meter and described
Low level-sensing device is separately connected controller, and the controller is also connected with the first intermediate bunker switch, and the controller is used for root
Closing or opening for the first intermediate bunker switch is controlled according to the signal of the high charge level meter and the low level-sensing device transmission.
8. system according to claim 6, it is characterised in that:High charge level meter is respectively arranged on second intermediate bunker
With low level-sensing device, it is provided with the second intermediate bunker switch on the second intermediate bunker feed inlet, the high charge level meter and described
Low level-sensing device is separately connected controller, and the controller is also connected with the second intermediate bunker switch, and the controller is used for root
Closing or opening for the second intermediate bunker switch is controlled according to the signal of the high charge level meter and the low level-sensing device transmission.
9. system according to claim 6, it is characterised in that:The pelletizer is mixed at high speed pelletizer, the high speed
Mixed granulation machine is additionally provided with shearing equipment.
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109950466A (en) * | 2019-03-26 | 2019-06-28 | 浙江林奈新能源有限公司 | A kind of full automatic production equipment of anode material for lithium-ion batteries |
CN113120966A (en) * | 2021-03-24 | 2021-07-16 | 安徽博石高科新材料股份有限公司 | Automatic production method of lithium manganate material |
WO2023050130A1 (en) * | 2021-09-28 | 2023-04-06 | 武汉科技大学 | Processing method and production line for lithium battery positive electrode material |
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Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN105428589A (en) * | 2015-11-13 | 2016-03-23 | 江苏南大紫金锂电智能装备有限公司 | Intelligent production process for lithium battery positive electrode material |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109950466A (en) * | 2019-03-26 | 2019-06-28 | 浙江林奈新能源有限公司 | A kind of full automatic production equipment of anode material for lithium-ion batteries |
CN113120966A (en) * | 2021-03-24 | 2021-07-16 | 安徽博石高科新材料股份有限公司 | Automatic production method of lithium manganate material |
WO2023050130A1 (en) * | 2021-09-28 | 2023-04-06 | 武汉科技大学 | Processing method and production line for lithium battery positive electrode material |
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