CN110635104A - Automatic production system and method for lithium battery positive electrode material - Google Patents
Automatic production system and method for lithium battery positive electrode material Download PDFInfo
- Publication number
- CN110635104A CN110635104A CN201910942564.XA CN201910942564A CN110635104A CN 110635104 A CN110635104 A CN 110635104A CN 201910942564 A CN201910942564 A CN 201910942564A CN 110635104 A CN110635104 A CN 110635104A
- Authority
- CN
- China
- Prior art keywords
- sintering
- bin
- dry
- machine
- wet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
-
- 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
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The invention relates to an automatic production system and method for a lithium battery positive electrode material. An automatic production system for a lithium battery positive electrode material comprises: the batching mechanism comprises a plurality of feeding assemblies, high-mixing equipment connected with the feeding assemblies and a mixing bin connected with the high-mixing equipment; a first sintering mechanism; a crushing mechanism; the dry coating mechanism and the wet coating mechanism are respectively connected with the crushing mechanism; the second sintering mechanism is respectively connected with the dry-method coating mechanism and the wet-method coating mechanism; the packaging mechanism is respectively connected with the crushing mechanism and the second sintering mechanism; the connection is sealed through a connecting pipeline. Compared with the prior art, the method has the advantages that the lithium battery anode material is produced by an automatic production line, the whole production process is closed, the overflow of dust and the introduction of foreign matters such as metal can be avoided, various production modes are adopted, the production efficiency is effectively improved, and the material production cost is reduced.
Description
Technical Field
The invention relates to the field of lithium battery production, in particular to an automatic production system and method for a lithium battery positive electrode material.
Background
The lithium battery mainly comprises a positive electrode material, a negative electrode material, a diaphragm, electrolyte and the like, wherein the positive electrode material accounts for more than 40% of the total cost of the lithium battery, and the performance of the positive electrode material directly influences various performance indexes of the lithium battery, so that the positive electrode material of the lithium battery occupies a core position in the lithium battery.
The production process of the lithium battery positive electrode material comprises the steps of proportioning, sintering, crushing, coating, packaging and the like, and in the prior art, the materials are manually transferred during operation in each link. Because the materials are all in micron level, even part of the materials are all in nanometer level, dust can be generated in the process of carrying and transferring, once workers inhale, the dust is harmful to the bodies, and the working strength of production line staff is high, and the efficiency is low. The materials are not treated timely and easily absorb moisture or are mixed with foreign matters, so that the consistency and the quality of the product are seriously influenced.
Patent document No. 201510777219.7 discloses an intelligent production process for lithium battery positive electrode material, which is an automatic production method, but the main technical direction is to prevent other impurities from entering the positive electrode material, and the problem still exists in the aspect of protection from the outside.
Therefore, the present invention is not satisfactory, and the inventors are eagerly required to make innovation and development.
Disclosure of Invention
In view of the defects of the prior art, the invention aims to provide an automatic production system and method for a lithium battery positive electrode material, which can realize automatic production, have little influence on the environment, realize production in multiple modes and reduce manual participation.
In order to achieve the purpose, the invention adopts the following technical scheme:
an automatic production system for a lithium battery positive electrode material comprises:
the batching mechanism comprises a plurality of feeding assemblies, high-mixing equipment connected with the feeding assemblies and a mixing bin connected with the high-mixing equipment;
the feeding assembly comprises a batching vacuum feeding device, a raw material bin connected with the batching vacuum feeding device, a weighing tank connected with the raw material bin, and a batching spiral feeder connected with the weighing tank;
the first sintering mechanism comprises a first bowl loading device, a first sintering device and a first storage bin which are connected with the mixing storage bin;
the crushing mechanism comprises a crushing vacuum feeding device connected with the first bin, a crusher connected with the crushing vacuum feeding device, and a material temporary storage bin connected with the crusher;
the dry coating mechanism and the wet coating mechanism are respectively connected with the crushing mechanism;
the second sintering mechanism is respectively connected with the dry-method coating mechanism and the wet-method coating mechanism;
the packaging mechanism is respectively connected with the crushing mechanism and the second sintering mechanism;
the connection is sealed through a connecting pipeline.
Preferably, in the first sintering mechanism, the first pot loading device includes a first sintering vacuum feeding device connected to the mixing bin, a first pot loading bin connected to the first sintering vacuum feeding device, and a first pot loading machine connected to the first pot loading bin;
the first sintering device comprises a first external circulation track loaded with a plurality of saggars, a first flattening and punching device, a first bowl stacking machine, a first sintering kiln, a first bowl separating machine, a first material pouring machine and a first external circulation track sealing cover; the sagger is aligned to the sagger loading machine by the first external circulation track and sequentially passes through the first flattening and punching device, the first sagger stacking machine, the first sintering kiln, the first sagger separating machine and the first material pouring machine;
the first material dumping machine is connected with the first material bin;
the first outer circulation track sealing cover seals the first sintering device.
Preferably, in the automatic production system for lithium battery positive electrode materials, a crushing bin connected with the crushing vacuum feeding device and a crushing vibrating screen connected with the crushing bin are further included between the crushing vacuum feeding device and the crusher in the crushing mechanism, and the crushing vibrating screen is connected with the crusher;
the pulverizer is connected to the material temporary storage bin through a cyclone separator;
the pulverizer is also connected with the micro-dust collecting bin through a circulating fan;
the dust collecting bin is also connected with the cyclone separator.
Preferably, the automatic production system for the lithium battery anode material comprises a packaging vacuum feeding device connected with the material temporary storage bin, a batch mixing machine connected with the packaging vacuum feeding device, a packaging vibrating screen connected with the batch mixing machine, a packaging bin connected with the packaging vibrating screen, and a packaging machine connected with the packaging bin.
Preferably, the automatic production system for the lithium battery cathode material comprises a dry-method vacuum feeding device connected with the material temporary storage bin, a dry-method bin connected with the dry-method vacuum feeding device, a dry-method weighing tank connected with the dry-method bin, a dry-method spiral feeder connected with the dry-method weighing tank, a dry-method high-mixing device connected with the dry-method spiral feeder, and a dry-method mixing bin connected with the dry-method high-mixing device.
Preferably, the automatic production system for the lithium battery anode material comprises a wet process coating mechanism, a wet process coating mechanism and a drying mechanism, wherein the wet process coating mechanism comprises a wet process vacuum feeding device connected with the material temporary storage bin, a wet process temporary storage bin connected with the wet process vacuum feeding device, a wet process weighing tank connected with the wet process temporary storage bin, a wet process spiral feeder connected with the wet process weighing tank, a coating tank connected with the wet process spiral feeder, a filter press connected with the coating tank through a feeding pump, a drying machine connected with the filter press, and a wet process bin connected with the drying machine;
the coating tank is provided with a water making machine and a coating agent tank;
an exhaust fan is arranged on the dryer.
Preferably, in the automatic production system for the lithium battery cathode material, the second sintering mechanism comprises a second bowl loading device, a second sintering device and a second bin;
the second pot loading device comprises a second sintering vacuum feeding device, a second pot loading bin connected with the second sintering vacuum feeding device, and a second pot loading machine connected with the second pot loading bin;
the second sintering device comprises a second external circulation track carrying a plurality of saggars, a second flattening and punching device, a second saggar stacking machine, a second sintering kiln, a second saggar separating machine, a second material pouring machine and a second external circulation track sealing cover; the sagger is aligned to the sagger loading machine through the second external circulation track and sequentially passes through the second flattening and punching device, the second sagger stacking machine, the second sintering kiln, the second sagger separating machine and the second material pouring machine;
the second material dumping machine is connected with the second material bin;
the second outer circulation track sealing cover seals the second sintering device.
Preferably, in the automatic production system for the lithium battery cathode material, the high-speed mixing device is a high-speed mixer or a ribbon mixer;
the dry-method high-mixing equipment is a high-speed mixer or a ribbon mixer.
An automatic production method of a lithium battery anode material is applied to the automatic production system of the lithium battery anode material for production, and comprises the following steps:
s1, adjusting the response parameters of the batching mechanism, and fully mixing a plurality of raw materials of the lithium battery anode material by adopting a high-speed stirring method;
s2, conveying the mixed raw materials to a first sintering mechanism by a first bowl loading device to perform primary sintering treatment;
s3, crushing the material subjected to primary sintering by the crushing mechanism, and conveying the crushed material to a material temporary storage bin;
s4, reading the current system working mode information, if the working mode is the normal mode, executing the step S7; if the working mode is the dry mode, executing step S5; if the working mode is the wet mode, executing step S6;
s5, the dry coating mechanism carries out dry coating processing on the materials in the temporary material storage bin, the processed materials are conveyed to the second sintering mechanism for secondary sintering processing, and then the step S7 is executed;
s6, the wet coating mechanism conducts wet coating treatment on the materials in the material temporary storage bin, the treated materials are conveyed to the second sintering mechanism to conduct secondary sintering treatment, and then the step S7 is executed;
and S7, packaging the materials by a packaging mechanism.
In the preferred automatic production method of the lithium battery positive electrode material, in the step S1, the response parameter includes the weight of each raw material loaded each time.
Compared with the prior art, the automatic production system and method for the lithium battery positive electrode material provided by the invention have the advantages that the lithium battery positive electrode material is produced by the automatic production line, the whole production process is closed, the overflow of dust and the introduction of foreign matters such as metal can be avoided, various production modes are adopted, the production efficiency is effectively improved, the material production cost is reduced, the labor is reduced, the efficiency is high, and the convenience is high, so that the automatic production system and method are great progress in the field.
Drawings
FIG. 1 is a block diagram of an automatic production system for lithium battery positive electrode materials, according to the present invention;
FIG. 2 is a block diagram of a dosing mechanism provided by the present invention;
FIG. 3 is a structural view of a first sintering mechanism provided by the present invention;
FIG. 4 is a block diagram of a shredder mechanism provided in accordance with the present invention;
FIG. 5 is a structural diagram of a dry coating mechanism provided by the present invention;
FIG. 6 is a block diagram of a wet coating mechanism provided by the present invention;
FIG. 7 is a structural view of a second sintering mechanism provided by the present invention;
fig. 8 is a structural view of a packaging mechanism provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and effects of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
The invention provides an automatic production method of a lithium battery anode material, which comprises the following steps:
s1, adjusting the response parameters of the batching mechanism, and fully mixing a plurality of raw materials of the lithium battery anode material by adopting a high-speed stirring method;
s2, conveying the mixed raw materials to a first sintering mechanism by a first bowl loading device to perform primary sintering treatment; the sintering conditions of the primary sintering are as follows: the temperature is 200 ℃ and 1200 ℃, and the time is 10-50 h;
s3, crushing the material subjected to primary sintering by the crushing mechanism, and conveying the crushed material to a material temporary storage bin;
s4, reading the current system working mode information, if the working mode is the normal mode, executing the step S7; if the working mode is the dry mode, executing step S5; if the working mode is the wet mode, executing step S6;
s5, the dry coating mechanism carries out dry coating processing on the materials in the temporary material storage bin, the processed materials are conveyed to the second sintering mechanism for secondary sintering processing, and then the step S7 is executed;
s6, the wet coating mechanism conducts wet coating treatment on the materials in the material temporary storage bin, the treated materials are conveyed to the second sintering mechanism to conduct secondary sintering treatment, and then the step S7 is executed;
and S7, packaging the materials by a packaging mechanism.
Preferably, in this embodiment, before the step S1, the method further includes the steps of:
s0, setting a working mode;
the working modes comprise: normal mode, dry mode and wet mode.
Specifically, referring to fig. 1 to 8, the present invention further provides an automatic production system for lithium battery positive electrode material, which works in cooperation with the automatic production method, including:
the batching mechanism 1 comprises a plurality of feeding assemblies, high-mixing equipment 104 connected with the feeding assemblies, and a mixing bin 105 connected with the high-mixing equipment 104;
the feeding assembly comprises a batching vacuum feeding device 101, a raw material bin 102 connected with the batching vacuum feeding device 101, a weighing tank 103 connected with the raw material bin 102, and a batching spiral blanking device 106 connected with the weighing tank 103;
the first sintering mechanism 2 comprises a first bowl loading device, a first sintering device and a first storage bin 211 which are connected with the mixing storage bin;
the crushing mechanism 3 comprises a crushing vacuum feeding device 301 connected with the first bin, a crusher 305 connected with the crushing vacuum feeding device 301, and a material temporary storage bin 307 connected with the crusher 305;
the dry coating mechanism 4 and the wet coating mechanism 5 are respectively connected with the crushing mechanism;
and a second sintering mechanism 6 connected to the dry coating mechanism 4 and the wet coating mechanism 5, respectively;
a packaging mechanism 7 connected to the crushing mechanism 3 and the second sintering mechanism 6, respectively;
the connection is sealed through a connecting pipeline.
The normal mode is that raw materials are processed by the batching mechanism 1, the first sintering mechanism 2, the crushing mechanism 3 and the packaging mechanism 7 in sequence to produce the lithium battery anode material;
the dry method mode is that raw materials are processed by the batching mechanism 1, the first sintering mechanism 2, the crushing mechanism 3, the dry coating mechanism 4, the second sintering mechanism 6 and the packaging mechanism 7 in sequence to produce lithium battery anode materials;
the wet method mode is that raw materials are processed and produced into lithium battery anode materials through the batching mechanism 1, the first sintering mechanism 2, the crushing mechanism 3, the wet method coating mechanism 5, the second sintering mechanism 6 and the packaging mechanism 7 in sequence.
The high-speed mixing device 104 is a high-speed mixer or a ribbon mixer.
Specifically, the batching vacuum feeding device 101 receives raw materials through a feeding port 100, a first weighing module is arranged on the batching vacuum feeding device 101, when the first weighing module measures that the raw materials entering the batching vacuum feeding device 101 are larger than or equal to a first preset mass, the batching vacuum feeding device 101 stops working, otherwise, the batching vacuum feeding device 101 works normally; meanwhile, raw materials enter the raw material bin 102 through the batching vacuum feeding device 101, the raw material bin 102 is provided with an air bowl, an air hammer and a discharging butterfly valve, the air hammer is used for preventing the materials from forming a bridge, the discharging butterfly valve is connected with the weighing tank 103, the weighing tank 103 quantitatively conveys the materials to the spiral discharging device 106, the spiral discharging device 106 conveys the materials to the high-mixing equipment 104, and the materials are conveyed to the mixing bin 105 after the materials are fully mixed by the high-mixing equipment 104.
The feeding assembly can be two sets or three sets or more sets, and is determined according to the types of raw materials.
In a further preferred scheme, a rotary permanent magnet iron remover is further arranged between the discharging butterfly valve and the spiral discharging device, the weighing tank 103 is provided with a stirrer and a second weighing module, the stirrer is used for ensuring that materials in the weighing tank 103 are fluffy and do not cake, when the second weighing module measures that the weight of the materials in the weighing tank 103 is larger than or equal to a second preset mass, the discharging butterfly valve and the rotary permanent magnet iron remover stop working, otherwise, the discharging butterfly valve and the rotary permanent magnet iron remover work normally.
Preferably, in this embodiment, the first sintering mechanism 2 includes a first bowl device, a first sintering device, and a first bunker 211 connected to the mixing bunker 105;
in the first sintering mechanism 2, the first pot loading device comprises a first sintering vacuum loading device 201 connected with the mixing bin 105, a first pot loading bin 202 connected with the first sintering vacuum loading device 201, and a first pot loading machine 203 connected with the first pot loading bin 202;
the first sintering device comprises a first outer circulation track 204 loaded with a plurality of first saggars 213, a first flattening and punching device 205, a first bowl stacking machine 206, a first sintering kiln 207, a first bowl separating machine 208, a first material pouring machine 209 and a first outer circulation track sealing cover 210; the first external circulation track 204 aligns the first sagger 213 with the bowl loader 203 and passes through the first flattening and punching device 205, the first bowl stacking machine 206, the first sintering kiln 207, the first bowl separating machine 208 and the first material pouring machine 209 in sequence;
the first material pouring machine 209 is connected with the first material bin 211;
the first outer circulation rail sealing cover 210 seals the first sintering device.
Specifically, the first sagger 213 is used for containing the material conveyed by the first loading machine 203; the first flattening and punching device 204 is used for compacting the material in the first sagger 213, and punching a plurality of small holes on the compacted material, which are similar to honeycomb briquette shapes; the first sagger stacking machine 206 is used for stacking two adjacent single saggers 213 together; the first sintering kiln 209 is used for sintering the materials in the first sagger 213 by using high temperature; the first sagger machine 208 is used for splitting the first sagger 213 which is stacked together into two parts; the first pouring machine 209 is used for pouring the material in the first sagger 213.
The materials in the mixing bin 105 are conveyed to the first sagger bin 202 under the action of vacuum negative pressure by the first sintering vacuum feeding device 201, the sagger 203 uniformly loads the materials into the first sagger 213, and the first sagger 213 is driven by the first external circulation track 204 to sequentially pass through the first flattening and punching device 205, the first sagger stacking machine 206, the first sintering kiln 207, the first sagger 208 and the first material pouring machine 209; the material in the first sagger 213 has a certain hardness after being sintered by the first sintering kiln 207, and the first material pouring machine 209 has a first coarse crusher 212, and after being acted by the first coarse crusher 212, the material is sent to the first bunker 211 for temporary storage.
Preferably, in this embodiment, the crushing mechanism 3 includes a crushing vacuum loading device 301 connected to the first bin 211, a crusher 305 connected to the crushing vacuum loading device 301, and a material temporary storage bin 307 connected to the crusher; the crusher 305 is a mechanical crusher or a jet mill;
in the crushing mechanism 3, a crushing bin 302 connected to the crushing vacuum feeding device and a crushing vibrating screen 304 connected to the crushing bin 302 are further included between the crushing vacuum feeding device 301 and the crusher 305, and the crushing vibrating screen 304 is connected to the crusher 305;
the crusher 305 is connected to the material temporary storage bin 307 through a cyclone 306;
the pulverizer 305 is also connected with a dust collection bin 308 through a circulating fan (not shown);
the dust particle collection bin 308 is also connected to the cyclone 306.
Preferably, in this embodiment, the packaging mechanism 7 further includes a vacuum packaging feeding device 701 connected to the material temporary storage bin 307, a batch mixer 703 connected to the vacuum packaging feeding device 701, a vibrating packaging screen 705 connected to the batch mixer 703, a packaging bin 707 connected to the vibrating packaging screen 705, and a packaging machine 708 connected to the packaging bin 707.
Specifically, the material in the first bin 211 is conveyed to the crushing bin 302 under the vacuum negative pressure of the crushing vacuum feeding device 301 to wait for crushing; smash feed bin 302 with smash still have between the shale shaker 304 and smash rotatory permanent magnetism de-ironing separator 303, filter the magnetic substance in the material and after saggar sediment and the large size material, use rubbing crusher 305 smashes the back, sends into among the cyclone 306, carry out cyclone for normal size's material and miropowder, normal size's material gets into deposit in the material temporary storage 307, the miropowder gets into the collection of micronic dust collection bin 308. Of course, during the normal operation of the crusher 305, the dust particles are also generated, which requires the circulating fan to send the dust particles generated at this time to the dust particle collecting bin 308 for collection.
The material in the material temporary storage bin will pass through the packaging vacuum feeder 701, enter the batch mixer 703, pass through the packaging vibrating screen 705 and the packaging bin 707, and enter the packaging machine 708 for packaging. Preferably, the packing bin 707 is further provided with a packing permanent magnet iron remover 706 for removing the magnetic impurities in the materials again.
Preferably, in this embodiment, the dry coating mechanism 4 includes a dry vacuum feeding device 401 connected to the material temporary storage bin 307, a dry silo 402 connected to the dry vacuum feeding device 401, a dry weighing tank 403 connected to the dry silo 402, a dry spiral blanking device 404 connected to the dry weighing tank 403, a dry high-mixing device 405 connected to the dry spiral blanking device 404, and a dry mixing bin 406 connected to the dry high-mixing device 405.
Specifically, in the flow of the dry mode, in the case of the normal mode, the step S4 further includes:
the dry vacuum loading device 401 conveys the materials in the material temporary storage bin 307 to the dry silo 402 through the action of vacuum negative pressure, a dry weighing module is arranged on the dry vacuum loading device 401, when the dry weighing module measures that the mass of the materials entering the dry vacuum loading device 401 is greater than or equal to the dry preset mass, the dry vacuum loading device 401 stops working, otherwise, the dry vacuum loading device 401 works normally; the dry method storage bin 402 and the raw material storage bin 102 have the same technical characteristics, the blanking butterfly valve is connected with the dry method weighing tank 403, the dry method weighing tank 403 quantitatively conveys materials to the spiral blanking device 404, the dry method spiral blanking device 404 conveys the materials in the dry method weighing tank 403 to the dry method high-mixing equipment 405, the dry method high-mixing equipment 405 is provided with an auxiliary material port (not marked), a certain amount of coating agent is added into the auxiliary material port, after the materials are fully mixed by the dry method high-mixing equipment 405, the coated materials are conveyed to the dry method mixing storage bin 406, and then the coated materials enter the second sintering mechanism 6 to be subjected to secondary sintering treatment, and then the coated materials are conveyed to the packaging mechanism 7 to be packaged.
Preferably, in this embodiment, the wet coating mechanism 5 includes a wet vacuum feeding device 501 connected to the material temporary storage bin 307, a wet temporary storage bin 502 connected to the wet vacuum feeding device 501, a wet weighing tank 503 connected to the wet temporary storage bin 502, a wet spiral discharger 504 connected to the wet weighing tank 503, a coating tank 505 connected to the wet spiral discharger 504, a filter press 506 connected to the coating tank 505 through a feeding pump (not shown), a dryer 507 connected to the filter press, and a wet storage bin 508 connected to the dryer 507; the filter press is a plate filter press or a frame filter press or a centrifugal filter; the dryer is a handle dryer, a microwave dryer or a belt dryer;
the coating tank is provided with a water making machine 510 and a coating agent tank 509;
an exhaust fan (not marked) is arranged on the dryer.
Specifically, in the flow of the wet method mode, the step S4 specifically further includes:
the wet vacuum feeding device 501 conveys the materials in the material temporary storage bin 307 to a wet temporary storage bin 502 through the action of vacuum negative pressure, a wet weighing module is arranged on the wet temporary storage bin 502, when the wet weighing module measures that the mass of the materials entering the wet vacuum feeding device is greater than or equal to the wet preset mass, the wet vacuum feeding device 501 stops working, otherwise, the wet vacuum feeding device 501 works normally; wet process weighing tank 503 receives the material of wet process temporary storage feed bin 502, reaches after setting up the weight, just through wet process spiral feeder 504 arrive in cladding jar 505, through system water machine 510 with cladding agent jar 510 adds water and cladding agent into in the cladding jar 505, through after the intensive mixing cladding through the delivery pump is carried the pressure filter 506 goes out most moisture, then uses desiccator 507 carries out the drying dewatering, the air exhauster is got rid of the vapor of desiccator 507, and the quick drying of being convenient for arrives after the wet process cladding material dewatering in the wet process feed bin 508, and then gets into second sintering mechanism 6 carries out the secondary sintering and handles the transport packagine machine constructs 7 and packs.
The second sintering mechanism 6 comprises a second pot loading device, a second sintering device and a second stock bin 611;
the second pot loading device comprises a second sintering vacuum feeding device 601, a second pot loading bin 602 connected with the second sintering vacuum feeding device 601, and a second pot loading machine 603 connected with the second pot loading bin 602;
the second sintering device comprises a second external circulation track 604 carrying a plurality of second saggers 613, a second flattening and punching device 605, a second mortar stacking machine 606, a second sintering kiln 607, a second mortar separating machine 608, a second material pouring machine 609 and a second external circulation track sealing cover 610; the second external circulation track 604 aligns the second sagger 613 with the bowl loader 603, and passes through the second flattening and punching device 605, the second bowl stacking machine 606, the second sintering kiln 607, the second bowl splitter 608 and the second material pouring machine 609 in sequence;
the second material dumping machine 609 is connected with the second bin 611;
the second outer circulation rail sealing cover 610 seals the second sintering apparatus.
The secondary sintering process of the second sintering mechanism 6 is the same as the operation mechanism of the first sintering mechanism 2, and is not described in detail here.
According to the invention, the lithium battery anode material is produced by adopting an intelligent production line, and the whole process is closed, so that the overflow of dust and the introduction of foreign matters such as metal can be avoided, the production efficiency is effectively improved, and the material production cost is reduced.
The high-mixing equipment and the dry-method high-mixing equipment can be high-mixing machines with the same specification, and the lining is a tungsten carbide coating; the same ribbon mixer may be used, and the liner may be tungsten carbide coated or PTFE (polytetrafluoroethylene).
The raw materials feed bin, the mixing bunker, the feed bin, first dress alms bowl feed bin, first feed bin, smash the feed bin, the packing feed bin, dry method mixing bunker, the feed bin is kept in to the wet process, the wet process feed bin, second dress alms bowl feed bin, second feed bin all inside lining tungsten carbide cladding material or PTFE.
The first/second sintering furnace is a push plate sintering furnace, an open type roller way sintering furnace or a closed type roller way sintering furnace.
First/outer circulation track sealed cowling adopts sealed structure, with linking bridge between the first/outer circulation track is the aluminum alloy, first/outer circulation track sealed cowling is high temperature resistant toughened glass or organic glass board or transparent PP (polypropylene) board, guarantees that the material is handled under inclosed environment, prevents that the material dust from flying upward and spilling over, the polluted environment, harms production line personnel's health.
In the automatic production system of the lithium battery anode material provided by the invention, except for special description of connection, the connection is sealed through the connecting pipeline (not marked). The connecting pipeline is a stainless steel pipe lined with ceramic, tungsten carbide coating, PTFE or glass, and a protective layer is arranged outside the pipe.
Preferably, the present embodiment further comprises a setting device and a controller connected to the setting device;
the setting device is used for setting the working mode of the system;
the control is also used for driving the burdening mechanism, the first sintering mechanism, the crushing mechanism, the dry coating mechanism, the wet coating mechanism, the second sintering mechanism and the packaging mechanism to normally work according to the signal of the setting device, so that automatic production is realized.
The connection between each mechanism is provided with a control valve for controlling the closing and the conduction between the mechanisms; there are also corresponding control valves between the various devices within each facility. The control valve comprises an air supplementing valve, a discharging butterfly valve, a star-shaped discharging device, a butterfly valve and a feeding butterfly valve.
Example 2
The invention also provides an automatic production line of the lithium battery anode material, which is used for working by using the automatic production system of the lithium battery anode material.
The intelligent lithium battery positive electrode material production line has the advantages of high automation degree, less pollution, environmental friendliness, capability of effectively reducing manual strength, improvement on production efficiency, guarantee of material operation in a closed environment, prevention of material dust flying and overflow, environmental pollution and damage to bodies of production line personnel, and great progress in the field.
It should be understood that equivalents and modifications of the technical solution and inventive concept thereof may occur to those skilled in the art, and all such modifications and alterations should fall within the scope of the appended claims.
Claims (10)
1. An automatic production system for a lithium battery positive electrode material is characterized by comprising:
the batching mechanism comprises a plurality of feeding assemblies, high-mixing equipment connected with the feeding assemblies and a mixing bin connected with the high-mixing equipment;
the feeding assembly comprises a batching vacuum feeding device, a raw material bin connected with the batching vacuum feeding device, a weighing tank connected with the raw material bin, and a batching spiral feeder connected with the weighing tank;
the first sintering mechanism comprises a first bowl loading device, a first sintering device and a first storage bin which are connected with the mixing storage bin;
the crushing mechanism comprises a crushing vacuum feeding device connected with the first bin, a crusher connected with the crushing vacuum feeding device, and a material temporary storage bin connected with the crusher;
the dry coating mechanism and the wet coating mechanism are respectively connected with the crushing mechanism;
the second sintering mechanism is respectively connected with the dry-method coating mechanism and the wet-method coating mechanism;
the packaging mechanism is respectively connected with the crushing mechanism and the second sintering mechanism;
the connection is sealed through a connecting pipeline.
2. The automatic production system of the lithium battery positive electrode material according to claim 1, wherein in the first sintering mechanism, the first bowl loading device comprises a first sintering vacuum loading device connected with the mixing bin, a first bowl loading bin connected with the first sintering vacuum loading device, and a first bowl loading machine connected with the first bowl loading bin;
the first sintering device comprises a first external circulation track loaded with a plurality of saggars, a first flattening and punching device, a first bowl stacking machine, a first sintering kiln, a first bowl separating machine, a first material pouring machine and a first external circulation track sealing cover; the sagger is aligned to the sagger loading machine by the first external circulation track and sequentially passes through the first flattening and punching device, the first sagger stacking machine, the first sintering kiln, the first sagger separating machine and the first material pouring machine;
the first material dumping machine is connected with the first material bin;
the first outer circulation track sealing cover seals the first sintering device.
3. The automatic production system of the lithium battery positive electrode material according to claim 1, wherein a crushing bin connected with the crushing vacuum feeding device and a crushing vibrating screen connected with the crushing bin are further included between the crushing vacuum feeding device and the crusher in the crushing mechanism, and the crushing vibrating screen is connected with the crusher;
the pulverizer is connected to the material temporary storage bin through a cyclone separator;
the pulverizer is also connected with the micro-dust collecting bin through a circulating fan;
the dust collecting bin is also connected with the cyclone separator.
4. The automatic production system of the lithium battery positive electrode material as claimed in claim 1, wherein the packaging mechanism comprises a packaging vacuum feeding device connected with the material temporary storage bin, a batch mixing machine connected with the packaging vacuum feeding device, a packaging vibrating screen connected with the batch mixing machine, a packaging bin connected with the packaging vibrating screen, and a packaging machine connected with the packaging bin.
5. The automatic production system of the lithium battery positive electrode material according to claim 1, wherein the dry coating mechanism comprises a dry vacuum feeding device connected with the material temporary storage bin, a dry bin connected with the dry vacuum feeding device, a dry weighing tank connected with the dry bin, a dry spiral blanking device connected with the dry weighing tank, a dry high-mixing device connected with the dry spiral blanking device, and a dry mixing bin connected with the dry high-mixing device.
6. The automatic production system of the lithium battery positive electrode material according to claim 1, wherein the wet coating mechanism comprises a wet vacuum feeding device connected with the material temporary storage bin, a wet temporary storage bin connected with the wet vacuum feeding device, a wet weighing tank connected with the wet temporary storage bin, a wet spiral discharging device connected with the wet weighing tank, a coating tank connected with the wet spiral discharging device, a filter press connected with the coating tank through a feeding pump, a drying machine connected with the filter press, and a wet storage bin connected with the drying machine;
the coating tank is provided with a water making machine and a coating agent tank;
an exhaust fan is arranged on the dryer.
7. The automatic production system of the lithium battery positive electrode material as claimed in claim 1, wherein the second sintering mechanism comprises a second bowl-loading device, a second sintering device and a second bin;
the second pot loading device comprises a second sintering vacuum feeding device, a second pot loading bin connected with the second sintering vacuum feeding device, and a second pot loading machine connected with the second pot loading bin;
the second sintering device comprises a second external circulation track carrying a plurality of saggars, a second flattening and punching device, a second saggar stacking machine, a second sintering kiln, a second saggar separating machine, a second material pouring machine and a second external circulation track sealing cover; the sagger is aligned to the sagger loading machine through the second external circulation track and sequentially passes through the second flattening and punching device, the second sagger stacking machine, the second sintering kiln, the second sagger separating machine and the second material pouring machine;
the second material dumping machine is connected with the second material bin;
the second outer circulation track sealing cover seals the second sintering device.
8. The automatic production system of a lithium battery positive electrode material as claimed in claim 1 or 5, wherein the high-speed mixing device is a high-speed mixer or a ribbon mixer;
the dry-method high-mixing equipment is a high-speed mixer or a ribbon mixer.
9. An automatic production method of a lithium battery positive electrode material is characterized by comprising the following steps:
s1, adjusting the response parameters of the batching mechanism, and fully mixing a plurality of raw materials of the lithium battery anode material by adopting a high-speed stirring method;
s2, conveying the mixed raw materials to a first sintering mechanism by a first bowl loading device to perform primary sintering treatment;
s3, crushing the material subjected to primary sintering by the crushing mechanism, and conveying the crushed material to a material temporary storage bin;
s4, reading the current system working mode information, if the working mode is the normal mode, executing the step S7; if the working mode is the dry mode, executing step S5; if the working mode is the wet mode, executing step S6;
s5, the dry coating mechanism carries out dry coating processing on the materials in the temporary material storage bin, the processed materials are conveyed to the second sintering mechanism for secondary sintering processing, and then the step S7 is executed;
s6, the wet coating mechanism conducts wet coating treatment on the materials in the material temporary storage bin, the treated materials are conveyed to the second sintering mechanism to conduct secondary sintering treatment, and then the step S7 is executed;
and S7, packaging the materials by a packaging mechanism.
10. The automatic production method of a positive electrode material for a lithium battery as claimed in claim 9, wherein in the step S1, the response parameter includes a weight per charge of each raw material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942564.XA CN110635104A (en) | 2019-09-30 | 2019-09-30 | Automatic production system and method for lithium battery positive electrode material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910942564.XA CN110635104A (en) | 2019-09-30 | 2019-09-30 | Automatic production system and method for lithium battery positive electrode material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110635104A true CN110635104A (en) | 2019-12-31 |
Family
ID=68975550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910942564.XA Pending CN110635104A (en) | 2019-09-30 | 2019-09-30 | Automatic production system and method for lithium battery positive electrode material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110635104A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883765A (en) * | 2020-07-23 | 2020-11-03 | 松山湖材料实验室 | Lithium battery positive active material, preparation method thereof and lithium battery |
-
2019
- 2019-09-30 CN CN201910942564.XA patent/CN110635104A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111883765A (en) * | 2020-07-23 | 2020-11-03 | 松山湖材料实验室 | Lithium battery positive active material, preparation method thereof and lithium battery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104291714B (en) | The production method of vertical mill grinding iron and steel ground-slag, slag powders and steel-making slag powder | |
| CN105728440A (en) | Aluminum electrolytic cell overhaul dreg harmless treatment system and method | |
| CN205762896U (en) | A kind of aluminium cell slag from delining innocuity disposal system | |
| CN116716443B (en) | Method for comprehensively utilizing thermal-state steel slag and comprehensive separation system | |
| CN104307614A (en) | A method of grinding steel slag powder and mine slag powder and producing steel and iron slag powder by a vertical grinding mill | |
| CN112759285B (en) | Cement clinker prepared from low-grade limestone and preparation method thereof | |
| CN110635104A (en) | Automatic production system and method for lithium battery positive electrode material | |
| CN203874873U (en) | Nickel slag grinding system | |
| CN109940752A (en) | A kind of electron ceramic material production system and technique | |
| CN110616316A (en) | Compact dust removal ball pressing treatment system | |
| CN213596170U (en) | Production line for producing cement clinker by solid-waste blending | |
| CN114011834A (en) | Carbide slag calcines reduction retrieval and utilization carbide stove coproduction desulfurizer system | |
| CN106116196A (en) | A kind of vertical mill grinding slag, lithium slag composite powder production method | |
| CN218196305U (en) | Junked tire crushing unit and junked tire processing system thereof | |
| CN106116195A (en) | A kind of vertical mill grinding slag, lithium slag add modifying agent composite powder production method | |
| CN114522973A (en) | Be used for heavy metal contaminated soil cement kiln to deal with system in coordination | |
| CN201603692U (en) | On-line grading and separating device for rotary drum slag | |
| CN216125816U (en) | Waste ceramic tile system sand powder process all-in-one | |
| CN212476837U (en) | Equipment for preparing cold-cured ball by electric furnace ash | |
| CN213102580U (en) | Building block type machine-made sand production line | |
| CN105692676B (en) | A kind of aluminium electrolytic slag for comprehensive processing system | |
| CN211227270U (en) | Compact dust removal ball pressing treatment system | |
| CN209923399U (en) | Rotary hearth furnace raw material processing system | |
| CN106517203A (en) | Calcium carbide production system | |
| CN205500807U (en) | Aluminium cell waste residue integrated processing system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20220808 Address after: 411100 No. 129, Baishi West Road, Jiuhua demonstration zone, Xiangtan City, Hunan Province Applicant after: Hunan Sangrui New Material Co.,Ltd. Address before: Room g0232, headquarters building, Changsha Zhongdian Software Park, No. 39, Jianshan Road, high tech Development Zone, Changsha City, Hunan Province, 410013 Applicant before: Thornton New Energy Technology (Changsha) Co.,Ltd. |
|
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |