WO2023245896A1 - 锂离子电池的正极材料窑炉烧结系统及方法 - Google Patents

锂离子电池的正极材料窑炉烧结系统及方法 Download PDF

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Publication number
WO2023245896A1
WO2023245896A1 PCT/CN2022/122272 CN2022122272W WO2023245896A1 WO 2023245896 A1 WO2023245896 A1 WO 2023245896A1 CN 2022122272 W CN2022122272 W CN 2022122272W WO 2023245896 A1 WO2023245896 A1 WO 2023245896A1
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WIPO (PCT)
Prior art keywords
kiln
sagger
lifting
saggers
bowl
Prior art date
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PCT/CN2022/122272
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English (en)
French (fr)
Inventor
黄光豪
王英男
朱永科
李和敏
李长东
Original Assignee
广东邦普循环科技有限公司
湖南邦普循环科技有限公司
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Publication of WO2023245896A1 publication Critical patent/WO2023245896A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • F27B17/0016—Chamber type furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
    • F27B9/062—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated electrically heated
    • F27B9/063—Resistor heating, e.g. with resistors also emitting IR rays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
    • F27B21/04—Sintering pots or sintering pans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/24—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace being carried by a conveyor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
    • F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
    • F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
    • F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0006—Composite supporting structures
    • F27D5/0012—Modules of the sagger or setter type; Supports built up from them
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/12—Travelling or movable supports or containers for the charge
    • F27D2003/121—Band, belt or mesh
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D5/00—Supports, screens, or the like for the charge within the furnace
    • F27D5/0068—Containers
    • F27D2005/0075—Pots, e.g. slag pots, ladles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00—Type of treatment of the charge
    • F27M2003/04—Sintering
    • 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

Definitions

  • the present invention relates to the technical field of sintering of positive electrode materials for lithium ion batteries, and in particular to a kiln sintering system and method for positive electrode materials of lithium ion batteries.
  • Lithium-ion batteries are widely used in 3C, power batteries and energy storage fields because of their characteristics of energy storage, rapid charge and discharge, long cycle life, and environmental friendliness.
  • Cathode materials play a vital role in the performance of lithium-ion batteries, such as lithium cobalt oxide, lithium manganate, lithium iron phosphate, ternary cathode materials, etc.
  • the cathode material production process mainly adopts high-temperature solid phase method for production. In the high-temperature solid-phase process, the sintering process is the core and most important process. During the sintering process, a sagger is used as a carrier for the mixture of cathode material precursor and lithium source.
  • the number of saggers is increased as long as the kiln space allows, so that the cost of using saggers is higher and the saggers in each section of the sagger cycle process are
  • the bowl processing capacity is large, and the kiln sintering system occupies a large area.
  • the purpose of the present invention is to overcome the problems of the traditional kiln sintering system that the cost of using saggers is high, the sagger processing volume in each section of the sagger cycle process is large, and the floor space is large, and a lithium-ion battery is provided.
  • the cathode material kiln sintering system and method is provided.
  • a kiln sintering system for cathode materials of lithium-ion batteries including:
  • the main body of the kiln is formed with a feeding inlet and a feeding outlet.
  • the main body of the kiln is provided with a conveying mechanism, and both ends of the conveying mechanism extend at least to the feeding inlet and the feeding outlet respectively;
  • An external circulation conveying line is located at the top of the kiln body.
  • the outer circulation conveying line is used to transport the saggers.
  • the outer circulation conveying line is sequentially provided with a charging area and a vibrating dividing area along the conveying direction;
  • a bowl-loading device is located above the charging area, and the bowl-loading device is used to load the material to be sintered into the charging tank in the charging area;
  • a lifting and lowering combination device is provided adjacent to the outer circulation conveyor line.
  • the lifting and lowering combination device is used to transport the saggers of the outer circulation conveyor line to the conveyor mechanism and stack them to form a stacked bowl assembly;
  • the conveyor mechanism Used to transport the stacked bowl assembly from the material feeding inlet to the kiln body for sintering, and transport the sintered bowl stacking assembly from the kiln body to the feeding outlet;
  • a bowl unloading and separating device is provided adjacent to the outer circulation conveying line.
  • the bowl unloading and separating device is used to respectively unload the saggers of the bowl stacking assembly on the conveying mechanism and transport them to the outer circulation conveying line.
  • the material feeding inlet and the feeding outlet are respectively formed at both ends of the kiln body, and the two ends of the conveying mechanism extend to the feeding inlet and the feeding outlet respectively. exit.
  • the conveying mechanism includes a plurality of kiln rollers arranged at intervals.
  • each kiln roller is provided with a limiting ring protrusion
  • the bottom of the sagger is formed with a limiting groove
  • the limiting ring protrusion is located in the limiting groove. In the groove and rollingly connected with the sagger.
  • a mounting frame is provided on the top of the kiln body, and the external circulation conveyor line includes a driving motor, a transmission belt, a first roller and a second roller, and the driving motor is located on the mounting frame.
  • the first roller and the second roller are both rotatably connected to the mounting frame, the transmission belt is respectively sleeved on the first roller and the second roller, and the power output shaft of the drive motor is connected to the mounting bracket.
  • One end of the first roller is connected, and the transmission belt is used to transport the saggar to move.
  • the lifting combination device includes a first lifting and transporting mechanism and a grab and place mechanism.
  • the first lifting and transporting mechanism is respectively disposed adjacent to the outer circulation conveying line and the kiln main body.
  • the grab and place mechanism The mechanism is located at the power output end of the first lifting and transporting mechanism, and the catch and release mechanism is used to grab or release the sagger to transport the saggar from the outer circulation conveyor line to the conveyor. Mechanically stacked.
  • the first lifting and transporting mechanism includes a first lifting support frame group, a second lifting support frame group and a first translation mechanism.
  • the first lifting support frame group and the second lifting support frame The groups are arranged in parallel on both sides of the outer circulation conveying line, and the first translation mechanism is respectively installed on the power output end of the first lifting support frame group and the power output end of the second lifting support frame group, so that The first lifting support frame group and the second lifting support frame group jointly drive the lifting movement of the first translation mechanism; the catch and release mechanism is installed at the power output end of the first translation mechanism.
  • the bowl separation device includes a second lifting and conveying mechanism and a rotating clamping mechanism.
  • the second lifting and conveying mechanism is respectively disposed adjacent to the outer circulation conveying line and the kiln main body.
  • a rotary clamping mechanism is provided at the power output end of the second lifting and conveying mechanism. The rotary clamping mechanism is used to clamp and rotate the sagger to separate the saggars of the stacking bowl assembly on the transport mechanism. Unload and transport to the external circulation conveyor line.
  • the outer circulation conveying line is also provided with a vibrating dividing area, and the loading area and the vibrating dividing area are arranged sequentially along the conveying direction of the outer circulating conveying line;
  • the cathode material kiln sintering system also includes a vibrating and dicing device located above the vibrating dividing area.
  • the vibrating and dicing device is used to vibrate and divide the material in the sagger into piece;
  • a kiln sintering method for cathode material of lithium-ion batteries using the kiln sintering system for cathode material of lithium-ion batteries described in any of the above embodiments for sintering.
  • the kiln sintering method for cathode materials includes:
  • the material to be sintered is loaded into the filling groove of the sagger on the external circulation conveying line in the charging area through the bowl-loading device;
  • the loaded sagger is transported to the position corresponding to the vibrating and cutting device through the external circulation conveying line;
  • the saggers of the outer circulation conveyor line are transported to the conveyor mechanism and stacked by the lifting combination device to form a combined stack of saggers;
  • the stacking bowl assembly is transported from the feed inlet to the kiln body for sintering through the conveying mechanism, and the sintered stacking bowl assembly is transported from the kiln body to the conveyor Material export;
  • the saggers of the stacking bowl assembly on the conveyor mechanism are separately discharged through the bowl unloading and separating device and transported to the outer circulation conveying line;
  • the present invention at least has the following advantages:
  • the sagger moves to the charging area along with the external circulation conveyor line, and the sagger device loads the materials to be sintered into the charging tank in the charging area.
  • the lifting combination device transports the saggers from the external circulation conveyor line to the conveying mechanism for stacking, forming a stacked bowl assembly; then the conveying mechanism transports the stacked bowl assembly from the feeding inlet to the main body of the kiln for sintering, and sintered The stacking bowl assembly is transported from the main body of the kiln to the feeding outlet; finally, the bowl unloading and separation device unloads the saggers of the stacking bowl assembly on the conveying mechanism and transports them to the external circulation conveying line;
  • the external circulation conveying line is located at the top of the kiln body, and the external circulation conveying line is equipped with a charging area, so that The outer circulation conveyor line transports the saggers to the corresponding positions of the bowl loading device and the lifting combination device respectively.
  • the lifting combination device transports the saggers from the outer circulation conveyor line to the conveying mechanism and stacks them to form a stacked bowl assembly.
  • the unloading and separation device transports the saggers
  • the saggers of the stacking sagger assembly on the mechanism are unloaded separately and transported to the external circulation conveyor line, so as to realize the sintering process of the cathode material kiln, and at the same time circulate the saggers in the three-dimensional space, and at the same time reduce the number of saggers, thus Reduce the cost of using saggers and reduce the processing volume of saggers in each section of the cycle process;
  • Figure 1 is a schematic diagram of a kiln sintering system for cathode material of a lithium-ion battery according to an embodiment
  • Figure 2 is a cross-sectional view of the cathode material kiln sintering system shown in Figure 1;
  • Figure 3 is a partial schematic diagram of the cathode material kiln sintering system shown in Figure 1 from another perspective;
  • Figure 4 is a partial schematic diagram of the cathode material kiln sintering system shown in Figure 1 from another perspective;
  • Figure 5 is a partial schematic diagram of the cathode material kiln sintering system shown in Figure 2 from another perspective;
  • Figure 6 is a schematic diagram of the sagger of the cathode material kiln sintering system shown in Figure 5;
  • Figure 7 is a partial schematic diagram of the cathode material kiln sintering system shown in Figure 2;
  • Figure 8 is a schematic diagram of the dicing device of the vibrating dicing device of the cathode material kiln sintering system shown in Figure 7;
  • Figure 9 is another partial schematic diagram of the cathode material kiln sintering system shown in Figure 2;
  • Figure 10 is a schematic diagram of the lifting combination device of the cathode material kiln sintering system shown in Figure 9;
  • FIG. 11 is a partial schematic diagram of the bowl separation device of the cathode material kiln sintering system shown in FIG. 9 .
  • the cathode material kiln sintering system 10 for lithium ion batteries in one embodiment includes a kiln body 100, a sagger 200, an external circulation conveying line 300, a bowl loading device 400, and a vibrating and dicing device. 500, lifting combination device 600 and bowl separation device 700.
  • the kiln main body 100 is formed with a feeding inlet 102 and a feeding outlet 104.
  • the kiln main body 100 is provided with a conveying mechanism 110. Both ends of the conveying mechanism 110 extend to at least the feeding inlet 102 and the feeding outlet 104 respectively.
  • the sagger 200 is formed with a filling groove 202, and the filling groove 202 is used to fill the material to be sintered.
  • the external circulation conveying line 300 is located on the top of the kiln body 100, and is used to transport the sagger 200 to move.
  • the sagger 200 circulates through the outer circulation conveying line 300, the lifting combination device 600, the conveying mechanism 110 and the sagger discharging and separating device 700 in sequence.
  • the outer circulation conveyor line 300 is provided with a charging area and a vibrating dividing area in sequence along the conveying direction; a bowl loading device 400 is located above the charging area, and the bowl loading device 400 is used to transfer the materials to be sintered in the charging area.
  • the materials are loaded into the filling tank 202; the vibrating and cutting device 500 is located above the vibrating and dividing area.
  • the vibrating and cutting device 500 is used to vibrate and divide the materials in the sagger 200 into pieces, that is, vibrating and cutting.
  • the device 500 performs a vibrating operation on the materials in the sagger 200, and divides the vibrated materials in the sagger 200 to form multiple side-by-side material blocks.
  • the vibrating and cutting device 500 vibrates the materials in the sagger 200.
  • the flat operation makes the material evenly spread in the sagger 200. Since multiple side-by-side material blocks in the sagger 200 are sintered to form multiple positive electrode material blocks at the same time, compared with the traditional sintering of one sagger 200 to form a
  • the method of using positive electrode material blocks greatly reduces the number of saggers 200, greatly reduces the space for ineffective loading of materials, and reduces the load-bearing weight of the kiln body 100; under the same sintering requirements of the positive electrode material blocks, the kiln energy consumption is reduced. Energy consumption of the furnace body 100.
  • the lifting and lowering combination device 600 is arranged adjacent to the outer circulation conveying line 300.
  • the lifting and lowering combination device 600 is used to transport the saggers 200 of the outer circulation conveying line 300 to the conveying mechanism 110 for stacking to form a stacked bowl assembly.
  • the conveying mechanism 110 is used to transport the stacked bowl assembly from the feeding inlet 102 to the kiln body 100 for sintering, and transport the sintered stacked bowl assembly from the kiln body 100 to the feeding outlet 104, so that the sagger 200
  • the block material is sintered and formed, so that the saggers 200 are transported through the conveying mechanism 110 in the form of a stacked sagger assembly, so that the kiln main body 100 can sinter at least two or more saggers 200 at the same time, thereby improving the energy of the kiln main body 100 Utilization.
  • the bowl unloading and separation device 700 is arranged adjacent to the outer circulation conveying line 300.
  • the bowl unloading and separating device 700 is used to unload the saggers 200 of the bowl stacking assembly on the conveying mechanism 110 and transport them to the outer circulation conveying line 300, that is, unloading the bowls.
  • the separation device 700 unloads the sintered material blocks in the saggar 200 of the stacking bowl assembly on the conveying mechanism 110, and transports the unloaded empty saggar 200 to the outer circulation conveyor line 300, so that the outer circulation conveyor line 300 circulates the empty sagger 200 to the charging area for recycling, without adding a storage station for the empty sagger 200 in the middle, and at the same time, a continuous sintering process is achieved.
  • the sagger 200 moves to the charging area along with the external circulation conveyor line 300, and the saggar loading device 400 loads the materials to be sintered in the charging area.
  • the saggers 200 of the circulating conveyor line 300 are transported to the conveying mechanism 110 and stacked to form a stacked bowl assembly; then the conveying mechanism 110 transports the stacked bowl assembly from the feeding inlet 102 to the kiln body 100 for sintering, and the sintered stacked bowls are The bowl assembly is transported from the kiln body 100 to the conveying outlet 104; finally, the bowl unloading and separation device 700 unloads the saggers 200 of the stacked bowl assembly on the conveying mechanism 110 and transports them to the outer circulation conveying line 300; due to the conveying Both ends of the mechanism 110 extend to at least the feeding inlet 102 and the feeding outlet 104 respectively.
  • the external circulation conveying line 300 is located on the top of the kiln body 100.
  • the outer circulation conveying line 300 is provided with charging areas along the conveying direction. and vibrating the dividing area, so that the external circulation conveyor line 300 transports the saggers 200 to the corresponding positions of the vibration leveling and cutting device 500 and the lifting combination device 600.
  • the lifting combination device 600 transports the saggers 200 of the external circulation conveying line 300 to The bowls are stacked on the conveying mechanism 110 to form a stacking bowl assembly.
  • the bowl unloading and separating device 700 unloads the saggers 200 of the stacking bowl assembly on the conveying mechanism 110 and transports them to the outer circulation conveying line 300, thus realizing the sintering of the cathode material kiln.
  • the processing capacity of the sagger 200 is small; in the above-mentioned lithium-ion battery cathode material kiln sintering system 10, since the sagger 200 has an external circulation conveying line 300, a lifting combination device 600, a conveying mechanism 110, and a sag unloading separation device 700, the sagger 200 circulates. Allowing the sagger 200 to circulate in the three-dimensional space reduces the footprint of the kiln sintering system 10 .
  • the vibrating dicing device 500 may be omitted.
  • the bowl loading device 400 can evenly load the materials to be sintered into the filling tank 202 in the charging area, at least without the need for a leveling operation.
  • the number of saggers 200 in the stacking bowl assembly may be multiple, that is, the number of saggers 200 in the stacking bowl assembly may be two, three, or four, etc. In this embodiment, the number of bowl components is three.
  • a plurality of saggers 200 are stacked to form a stacked sagger assembly.
  • the feed inlet 102 and the feed outlet 104 are respectively formed at both ends of the kiln body 100 , and the two ends of the conveying mechanism 110 extend to the feed inlet 102 and 104 respectively.
  • one end of the conveying mechanism 110 extends to the conveying inlet 102, so that the lifting combination device 600 directly stacks the saggers 200 on the conveying mechanism 110 at the conveying inlet 102 to form a stacked bowl assembly, plus the conveying mechanism
  • the other ends of 110 respectively extend to the feeding outlet 104, so that the bowl discharging and separating device 700 can unload the saggers 200 of the stacking bowl assembly directly on the conveying mechanism 110 one by one at the feeding outlet 104 and transport them to the outer circulation conveying line 300. superior.
  • the conveying mechanism 110 includes a plurality of kiln roller bars 112 arranged at intervals, so that the plurality of kiln roller bars 112 are arranged side by side at intervals to space a plurality of stacked bowl assemblies.
  • Transportation is conducive to sintering multiple batches of stacked bowl assemblies in succession.
  • the cathode material kiln sintering system 10 can realize circulating batches. sintering requirements.
  • the conveying mechanism 110 further includes a driving source 114, a driving gear 116 and a plurality of driven gears 118.
  • the driving source 114 is provided on the kiln body 100, and the driving gear 116 is provided on the driving source 114.
  • the power output shaft, a plurality of driven gears 118 are respectively sleeved on the corresponding kiln roller rod 112, the plurality of driven gears 118 are meshed and driven in sequence, the driving gear 116 is meshed and driven with one of the driven gears 118, so that the conveying mechanism 110 can
  • the plurality of kiln roller bars 112 are driven to rotate synchronously relative to the kiln main body 100, thereby realizing the simultaneous rotation of the plurality of kiln roller bars 112.
  • the driving source 114, the driving gear 116 and the plurality of driven gears 118 are all located on the periphery of the kiln body 100.
  • the driving source 114 may be a driving motor or a driving cylinder, or the like.
  • a limiting ring protrusion 112a is formed on the outer peripheral wall of each kiln roller bar 112, and a limiting groove 204 is formed on the bottom of the sagger 200.
  • the protrusion 112a is located in the limiting groove 204 and is rollingly connected with the sagger 200, so that the limiting groove 204 of the sagger 200 of the stacking bowl assembly is transported through the limiting ring protrusion 112a, thereby limiting the stacking bowl assembly.
  • the running track in the kiln body 100 prevents the kiln from being blocked due to deviation and even causing the roller bar to collapse.
  • the limiting ring protrusion 112a circles around the outer peripheral wall of the kiln roller bar 112, so that the kiln roller bar 112 can limit the sagger 200 of the stacking bowl assembly when the kiln roller bar 112 rotates relative to the kiln body 100.
  • the height of the limiting ring protrusion 112a is slightly smaller than the depth of the limiting groove 204 of the sagger 200, and the width of the limiting ring protrusion 112a is slightly smaller than the width of the limiting groove 204, which facilitates the convenience of the sagger.
  • the limiting groove 204 is fitted with the limiting ring protrusion 112a to prevent the sagger 200 from skewing laterally or longitudinally when running.
  • the kiln body 100 is provided with a heat insulation layer, so that the kiln body plays the role of heat insulation.
  • an upper heating rod 103 and a lower heating rod 105 are provided on the inner wall of the kiln body 100.
  • the upper heating rod 103 and the lower heating rod 105 are located on both sides of the conveying mechanism 110 respectively.
  • the heating rod 105 simultaneously heats and sinters the stacked bowl components to better evenly radiate heat to the materials in the upper and lower saggers 200 .
  • the number of upper heating rods 103 and the number of lower heating rods 105 are multiple.
  • the plurality of upper heating rods 103 are arranged side by side, and the plurality of lower heating rods 105 are arranged side by side.
  • the kiln body 100 is also provided with an air inlet system and an exhaust system.
  • the air inlet system includes an inlet fan and an air inlet duct.
  • the air inlets are provided at the bottom and sides of the kiln body.
  • the side inlets The gas port is parallel to the sagger 200 to better ensure the adequacy and consistency of sintering;
  • the exhaust system includes an exhaust fan and an exhaust pipe.
  • the exhaust pipe is set in the heating section and cooling section of the kiln body to transfer the positive electrode material The exhaust gas and waste heat generated by the reaction sintering process are discharged.
  • the main body of the kiln is equipped with partitions to make the temperature and atmosphere in different temperature zones relatively uniform and ensure the consistency of material sintering.
  • a plurality of partition zones are provided in the main body of the kiln body to divide the main body of the kiln body into a heating section, a heat preservation section and a cooling section in sequence along the conveying mechanism 110 .
  • the heating rate of the heating section is 1°C/min-2°C/min, and the temperature is raised to 800°C-850°C, and then to 900°C-950°C to better sinter the material.
  • the temperature is raised to 800°C to 850°C for the first time, and the temperature is raised to 900°C to 950°C for the second time.
  • the holding time is 11h to 13h; further, the heating time is 8h to 16h to better sinter the material.
  • a residual material collection box (not shown) is provided below the conveying end of the outer circulation conveyor line 300 for collecting the remaining materials dropped from the outside of the sagger 200 and onto the outer circulation conveyor line 300, making the kiln sintering system 10 more efficient. tidy.
  • the conveying mechanism 110 transports the stacking bowl assembly
  • the lifting combination device 600 In order for the lifting combination device 600 to transport the sagger 200 of the outer circulation conveyor line 300 It is stacked on the conveying mechanism 110 to form a stacking bowl assembly, so that the material to be sintered in the sagger 200 of the stacking bowl assembly is reliably sintered, and the sintered blocks in the sagger 200 of the sintered stacking bowl assembly are reliably discharged and Transfer to the external circulation conveyor line 300.
  • the sintering residence time is greater than or equal to the stacking bowl residence time, and the sintering residence time is greater than or equal to the bowl unloading residence time, so that the lifting combination device 600 transports the saggers 200 of the external circulation conveyor line 300. It is stacked on the conveying mechanism 110 to form a stacking bowl assembly, so that the material to be sintered in the sagger 200 of the stacking bowl assembly is reliably sintered, and the sintered blocks in the sagger 200 of the sintered stacking bowl assembly are reliably discharged and Transfer to external circulation conveying line 300.
  • a mounting frame (not shown) is provided on the top of the kiln body 100, and the external circulation conveyor line 300 includes a drive motor (not shown), a transmission belt 320, and a first roller. 330 and the second roller 340.
  • the drive motor is installed on the mounting frame.
  • the first roller and the second roller are both rotationally connected to the mounting frame.
  • the transmission belt is respectively sleeved on the first roller and the second roller.
  • the power output shaft of the drive motor is connected to the second roller.
  • One end of a roller is connected, and the conveyor belt is used to transport the sagger 200 so that the sagger 200 can be moved to positions such as the loading area and the vibrating dividing area.
  • the number of the outer circulation conveying lines 300 is multiple, and the plurality of outer circulation conveying lines 300 are arranged side by side and adjacently.
  • the number of the outer circulation conveying lines 300 is four, which are the first outer circulation conveying line, the second outer circulation conveying line, the third outer circulation conveying line and the fourth outer circulation conveying line.
  • the circulating conveying line, the second external circulating conveying line, the third external circulating conveying line and the fourth external circulating conveying line are all located on the top of the kiln body 100.
  • the first external circulating conveying line is located adjacent to the lifting combination device 600, and the second external circulating conveying line is located adjacent to the lifting combination device 600.
  • the circulating conveying line is arranged adjacent to the vibrating and cutting device 500
  • the third external circulating conveying line is arranged adjacent to the bowl loading device 400
  • the fourth external circulating conveying line is arranged adjacent to the bowl unloading and separating device 700 .
  • the loading area is located on the third outer circulation conveying line
  • the vibrating dividing area is located on the second outer circulation conveying line
  • the lifting combination device 600 is used to transport the saggers 200 of the first outer circulation conveying line to the conveying mechanism 110 for stacking.
  • the bowl unloading and separating device 700 is used to unload the saggers 200 of the bowl stacking assembly on the conveying mechanism 110 and transport them to the fourth outer circulation conveying line.
  • the cathode material kiln sintering system 10 for lithium ion batteries further includes multiple inductors 800.
  • the multiple inductors 800 are arranged in one-to-one correspondence with the multiple external circulation conveying lines 300.
  • Each inductor It is electrically connected to the control end of the drive motor of the corresponding outer circulation conveying line 300.
  • the sensor corresponding to each outer circulation conveying line 300 senses the sagger 200
  • the outer circulation conveying line 300 stops running for a period of time to ensure reliable operation. Operations include filling materials, vibrating and dividing, moving the sagger 200, and placing the empty sagger 200.
  • the lifting and lowering combination device 600 is used to transport the saggers 200 of the first outer circulation conveying line to the conveying mechanism 110 for stacking, that is, the lifting and lowering combination device 600 is used to transport the first outer circulation conveying line to the conveying mechanism 110 for stacking.
  • the sagger 200 of the conveyor line is moved away; when the second outer circulation conveyor line stops, the vibrating and cutting device 500 is used to vibrate and divide the materials in the sagger 200 of the second outer circulation conveyor line into pieces, that is, The vibrating and cutting device 500 performs a vibrating operation on the materials in the sagger 200, and divides the vibrated materials in the sagger 200; when the third outer circulation conveying line stops, the bowl loading device 400 will The material to be sintered is loaded into the filling tank 202; when the fourth external circulation conveying line stops, the unloading bowl separation device 700 unloads the sintered material blocks in the sagger 200 of the stacking bowl assembly on the conveying mechanism 110, and The unloaded empty sagger 200 is transported to the fourth outer circulation conveying line.
  • the sensor can be a photoelectric sensor or other sensor.
  • the cathode material kiln sintering system 10 also includes a plurality of clamping and positioning devices, the plurality of clamping and positioning devices are arranged in one-to-one correspondence with the plurality of sensors, and the plurality of clamping and positioning devices are connected to a plurality of external circulation conveying lines 300 One-to-one corresponding settings.
  • the sensor senses the sagger 200 of the outer circulation conveyor line 300
  • the outer circulation conveyor line 300 stops moving, and the corresponding clamping and positioning device clamps and positions the sagger 200 for filling materials, vibrating, dividing, and moving. Operations such as removing 200 saggers and placing 200 empty saggers.
  • each clamping and positioning device includes two opposite clamping assemblies, and the two clamping assemblies are respectively located on both sides of the outer circulation conveying line 300 of the conveying mechanism 110 .
  • the clamping assembly includes a clamping cylinder and a clamping plate, and the clamping plate is connected to the power shaft of the clamping cylinder.
  • the vibrating and dicing device 500 includes a vibrating device 510 and a dicing device 520.
  • the vibrating device 510 and the dicing device 520 are arranged in sequence along the conveying direction of the outer circulation conveyor line 300.
  • the outer circulation conveyor The vibrating dividing area on the line 300 includes a vibrating area and a dividing area.
  • the vibrating area is arranged corresponding to the vibrating device 510, and the dividing area is arranged corresponding to the dicing device 520.
  • the leveling device 510 is used to level the materials in the sagger 200
  • the cutting device 520 is used to divide the leveled materials in the sagger 200 to form multiple side-by-side material blocks.
  • both the leveling area and the dividing area are provided with corresponding clamping and positioning devices to clamp and position the sagger 200 for leveling or dividing operations.
  • the leveling device 510 includes a vibration mechanism 512 and a lifting mechanism 514.
  • the vibration mechanism 512 is provided above the outer circulation conveyor line 300.
  • the lifting mechanism 514 includes a lifting cylinder 5142 and a lifting mechanism 514.
  • the lifting component 5144 is installed on the top of the kiln body 100.
  • the lifting component is installed on the power output end of the lifting cylinder.
  • the lifting component is used to support and lift the sagger 200 so that the sagger 200 contacts the On the vibration motor, the sagger 200 can be vibrated flatly.
  • the lifting assembly includes a lifting base.
  • the lifting base is connected to the power shaft of the lifting cylinder. Two clamping assemblies are relatively installed on the lifting base.
  • the two clamping assemblies are jointly used to clamp the two sides of the sagger 200, so that the lifting assembly supports and lifts the sagger 200.
  • the vibration mechanism 512 includes a fixed seat 5122, a vibration motor 5124 and a vibration cover plate 5126.
  • the fixed seat is installed on the kiln body 100 through a fixed frame.
  • the vibration motor is installed on the fixed seat.
  • the vibration motor is installed on the vibration cover plate.
  • the vibration cover The plate is located above the vibration leveling area, and the vibration cover plate is used to contact the sagger 200 when the lifting assembly supports and lifts the sagger 200 to a predetermined height, so as to perform a vibration leveling operation on the sagger 200 .
  • the contact surface of the vibrating cover plate 5126 is provided with a sealing convex ring 5127.
  • the sealing convex ring elastically abuts the filling groove 202 of the sagger 200 and plays a sealing role during vibration to prevent the vibration during the leveling process. Dust leakage.
  • the cutting device 520 includes a cutting drive cylinder 522 and a cutter seat 524.
  • the cutting drive cylinder 522 is provided above the kiln body 100, and the cutter seat 524 Installed on the power shaft of the cutting drive cylinder 522, the cutting drive cylinder 522 drives the cutter base 524 to move up and down to divide the vibrated materials in the sagger 200.
  • the cutter seat 524 includes a cutter fixing plate 5242 and a plurality of cutters 5244.
  • the cutter fixing plate 5242 is installed on the power shaft of the cutting drive cylinder 522.
  • the plurality of cutters 5244 are spaced apart from the cutter.
  • the cutting driving cylinder 522 drives the cutting knife seat 524 to move up and down to divide the vibrated materials in the sagger 200.
  • the lifting combination device 600 includes a first lifting and transporting mechanism 610 and a catch and place mechanism 620.
  • the first lifting and transporting mechanism 610 is respectively adjacent to the outer circulation conveying line 300 and the kiln main body. 100 is configured, the catch and release mechanism is located at the power output end of the first lifting and transporting mechanism 610, the catch and place mechanism 620 is used to grab or release the sagger 200, so as to transport the sagger 200 of the outer circulation conveyor line 300 to the conveyor mechanism 110 on the stack.
  • the first lifting and transporting mechanism 610 includes a first lifting support frame group 612, a second lifting support frame group 614 and a first translation mechanism 616.
  • the first lifting support frame The group 612 and the second lifting support frame group 614 are arranged in parallel on both sides of the outer circulation conveyor line 300.
  • the first translation mechanism 616 is installed at the power output end of the first lifting support frame group 612 and the second lifting support frame group 614 respectively. The power output end enables the first lifting support frame group 612 and the second lifting support frame group 614 to jointly drive the first translation mechanism 616 to move up and down.
  • the grab and release mechanism 620 is installed at the power output end of the first translation mechanism 616, so that the first translation mechanism 616 drives the grab and release mechanism 620 to translate, and the first lifting support frame group 612 and the second lifting support frame group 614 jointly drive the first lifting support frame group 612 and the second lifting support frame group 614.
  • the translation mechanism 616 moves up and down, thereby allowing the pick-and-place mechanism 620 to better transport the saggers 200 of the outer circulation conveyor line 300 to the conveyor mechanism 110 for stacking.
  • the first lifting support frame group 612 includes a first support frame 6122, a first lifting motor 6124 and a first sliding frame 6126.
  • the first support frame 6122 and the first lifting motor 6124 are The number is two, the two first support frames 6122 are arranged in parallel, the two first lifting motors 6124 are arranged in one-to-one correspondence with the two first support frames 6122, and the first sliding frames 6126 are respectively slidingly connected to the two first supports.
  • the second lifting support frame group 614 includes a second support frame 6142, a second The number of the lifting motor 6144 and the second sliding frame 6146, the second supporting frame 6142 and the second lifting motor 6144 is two.
  • the two second supporting frames 6142 are arranged in parallel.
  • the two second lifting motors 6144 are connected to the two second lifting motors 6144.
  • the support frames 6142 are arranged in one-to-one correspondence.
  • the second slide frames 6146 are respectively slidingly connected to the two second support frames 6142.
  • the two second lifting motors 6144 simultaneously drive the second slide frames 6146 to lift relative to the two second support frames 6142. Sliding; the first translation mechanism 616 is installed on the first slide frame 6126 and the second slide frame 6146 respectively.
  • the first translation mechanism 616 includes a first translation drive motor 6162 , a second translation drive motor 6164 and a translation plate 6166 .
  • the first translation drive motor 6162 is provided on the first carriage 6126
  • the second translation drive motor 6164 is disposed on the second carriage 6146
  • the translation plate 6166 is installed on the power output seat of the first translation drive motor 6162 and the power output seat of the second translation drive motor 6164 respectively.
  • the pick-and-place mechanism 620 is installed on the translation plate 6166, so that the first translation mechanism 616 drives the pick-and-place mechanism 620 to translate.
  • the multiple catch-and-release mechanisms 620 there are multiple catch-and-release mechanisms 620 , and the multiple catch-and-release mechanisms 620 are arranged at intervals along the length direction of the translation plate 6166 , so that the multiple catch-and-release mechanisms 620 jointly grab or release the sagger 200 operation, thereby making the sagger 200 more stable when moving with the catch and release mechanism 620.
  • each catch and release mechanism 620 includes a clamping cylinder 622 and two clamping jaws 624.
  • the two clamping jaws 624 are respectively provided on the two power output ends of the clamping cylinder 622.
  • the air cylinder 622 drives the two clamping jaws 624 to approach or move away at the same time to realize the grabbing or releasing operation of the sagger 200 .
  • each clamping jaw 624 includes a clamping jaw base 6242 and a bent claw portion 6244.
  • the clamping jaw base 6242 is fixedly connected to the power output end of the clamping cylinder 622, and the bent claw portion 6244 is connected to the end of the clamping jaw base 6242.
  • the curved claw portion 6244 is bent, and the two curved claw portions 6244 are bent in the direction of approaching each other, so that the two clamping claws 624 of each catching and releasing mechanism 620 can better grasp or release the sagger 200 operate.
  • each curved claw portion 6244 is L-shaped, so that each curved claw portion 6244 can better move from the side wall of the sagger 200, and thus the two curved claw portions 6244 The curved claw portion 6244 can better grasp the sagger 200.
  • two clamping and fixing grooves 206 are provided at the bottom of the sagger 200, so that the two curved claw portions 6244 can be grasped through the corresponding clamping and fixing grooves when grabbing the sagger 200. At the same time, This allows the two curved claw portions 6244 to better grasp the sagger 200 .
  • the two clamping and fixing grooves are connected with each other to facilitate the processing of each clamping and fixing groove and at the same time reduce the weight of the sagger 200.
  • two clamping and fixing grooves are connected with each other to form a clamping through-groove, and the number of the clamping through-grooves is multiple.
  • a plurality of catching and releasing mechanisms 620 are clamped in the clamping through grooves one by one.
  • the bowl separation device 700 includes a second lifting and conveying mechanism 710 and a rotating clamping mechanism 720.
  • the second lifting and conveying mechanism 710 is adjacent to the outer circulation conveying line 300 and the kiln respectively.
  • the furnace body 100 is provided with a rotary clamping mechanism 720 disposed at the power output end of the second lifting and transporting mechanism 710.
  • the rotary clamping mechanism 720 is used to clamp and rotate the sagger 200 so as to stack the sagger assembly on the conveying mechanism 110.
  • the bowls 200 are respectively unloaded and transported to the outer circulation conveyor line 300.
  • the rotating clamping mechanism 720 clamps the sagger 200, and the second lifting and transporting mechanism 710 drives the rotating clamping mechanism 720 to move to Above the discharge area, the rotating clamping mechanism 720 clamps and rotates the sagger 200 to 180 degrees clockwise to discharge the sintered blocks in the sagger 200 into the discharge area;
  • the rotating clamping mechanism 720 clamps and rotates the sagger 200 counterclockwise to 180 degrees, and the second lifting and transporting mechanism 710 drives the rotating clamping mechanism 720 to move to the outer circulation.
  • the second lifting and transporting mechanism 710 includes two third lifting support frame groups 712 and a second translation mechanism 714.
  • the two third lifting support frame groups 712 are arranged in parallel on the outer circulation conveyor.
  • the second translation mechanism 714 is respectively installed at the power output end of the two third lifting support frame groups 712, so that the two third lifting support frame groups 712 jointly drive the corresponding mounting plate 7265 to move up and down.
  • the number of the rotary clamping mechanisms 720 is two, and the two rotary clamping mechanisms 720 are respectively installed and fixed on the power output end of the second translation mechanism 714, so that the second translation mechanism 714 drives the movement of the two rotary clamping mechanisms 720 at the same time.
  • the two rotating clamping mechanisms 720 jointly clamp and rotate the sagger 200 .
  • the second translation mechanism 714 includes two translation cylinder assemblies.
  • the two translation cylinder assemblies are respectively installed at the power output ends of the two third lifting support frame groups 712.
  • Two rotating The clamping mechanisms 720 are respectively installed and fixed on the power output seats of the corresponding translation cylinder assemblies.
  • each rotary clamping mechanism 720 includes a fixed plate 722, a rotary cylinder 724 and a clamping assembly 726.
  • the fixed plate 722 of each rotary clamping mechanism 720 is installed on the power output seat of the corresponding translation cylinder assembly.
  • the rotating cylinder 724 is installed on the fixed plate 722, and the clamping component 726 is installed on the rotating power shaft of the rotating cylinder 724.
  • the clamping power directions of the clamping components 726 of the two rotating clamping mechanisms 720 are opposite, so that the two rotating clamping The mechanisms 720 jointly clamp the sagger 200 and rotate it synchronously.
  • the clamping assembly 726 of each rotary clamping mechanism 720 includes a pushing cylinder 7262, an inserting plate member 7264, and a lifting clamping member 7266.
  • the power output directions of the clamping assemblies 726 of the two rotary clamping mechanisms 720 are opposite.
  • the plug-in plate member 7264 is installed on the power shaft of the driving cylinder 7262, and the lifting clamping member 7266 is installed on the plug-in plate member 7264.
  • the clamping part of the lifting clamping member 7266 moves in a direction closer to or away from the plug-in plate member 7264, so that the clamping
  • the upper part acts on the top of the sagger 200 in the vertical direction to press the sagger 200 on the insert plate member 7264, so that the clamping components 726 of the two rotating clamping mechanisms 720 can better clamp the sagger 200 and perform Rotation operation.
  • the plug-in plate 7264 includes a connected installation plate 7265 and a support extension plate 7267.
  • the installation plate 7265 is installed on the power shaft of the pushing cylinder 7262, and the lifting clamping part 7266 is installed on the installation plate 7265, the support extension plate 7267 is connected to one end of the mounting plate 7265 away from the clamping part.
  • the rotating clamping mechanism 720 When the rotating clamping mechanism 720 performs a clamping operation on the sagger 200, the cylinder 7262 is pushed to drive the mounting plate 7265 to move, so that the mounting plate 7265 The supporting extension plate 7267 is driven to be inserted into the bottom of the sagger 200, and the clamping portion of the lifting clamping member 7266 acts on the top of the sagger 200 to press the sagger 200 onto the inserting plate member 7264.
  • the installation plate 7265 and the support extension plate 7267 are integrally formed, which makes the structure of the plug-in plate component 7264 relatively simple, and at the same time, the installation plate 7265 and the support extension plate 7267 are firmly connected.
  • the lifting clamping part 7266 includes a lifting clamping cylinder 7267 and a pressing part 7269.
  • the lifting clamping cylinder 622 is installed on the mounting plate 7265, and the pressing part is fixedly connected to the power shaft of the lifting clamping cylinder 622, so that the pressing part The tight portion moves toward or away from the insert plate member 7264.
  • the pressing part is a pressing column structure.
  • a photoelectric through-beam sensor assembly 1042 is provided at the material conveying outlet 104.
  • the photoelectric through-beam sensor assembly is communicatively connected to the control end of the unloading bowl separation device 700.
  • the mechanism 110 When the bowl stacking assembly is conveyed
  • the photoelectric through-beam sensor assembly When the mechanism 110 is transported to the position corresponding to the photoelectric through-beam sensor assembly, the photoelectric through-beam sensor assembly generates a sensing signal, and the bowl separation device 700 starts to operate to sinter the saggar 200 of the bowl stacking assembly on the transport mechanism 110
  • the material blocks are unloaded, and the unloaded empty saggers 200 are transported to the external circulation conveyor line 300 to realize rapid and accurate unloading and circulation of the saggers 200.
  • the photoelectric through-beam sensor assembly includes at least one group of photoelectric through-beam sensors.
  • the number of groups of photoelectric through-beam sensors can be one group or more than two groups. The specific number can be selected according to the number or the number of layers of the saggers 200 of the stacking bowl assembly, so that the bowl separation device 700 can align the stacking bowl assembly.
  • the saggers 200 are unloaded one by one and transported to the outer circulation conveyor line 300.
  • the present application also provides a kiln sintering method for cathode material of lithium-ion batteries.
  • the cathode material kiln sintering system 10 for lithium-ion batteries of any of the above embodiments is used for sintering.
  • the cathode material kiln sintering method includes part of the following steps or all:
  • the material to be sintered is loaded into the filling groove 202 of the sagger 200 on the external circulation conveyor line 300 in the charging area through the pot loading device 400;
  • the material in the sagger 200 is vibrated and divided into pieces through the vibrating and cutting device 500;
  • the saggers 200 of the stacking bowl assembly on the conveying mechanism 110 are respectively unloaded and transported to the outer circulation conveying line 300 through the bowl unloading and separating device 700;
  • the above-mentioned kiln sintering method for positive electrode materials of lithium ion batteries uses the kiln sintering system 10 for positive electrode materials of lithium ion batteries for sintering.
  • the sagger 200 moves to the charging area along with the external circulation conveyor line 300, and is loaded.
  • the sagger device 400 loads the materials to be sintered into the filling tank 202 in the charging area; then the sagger 200 moves to the vibrating dividing area along with the external circulation conveyor line 300, and the vibrating and cutting device 500 processes the materials in the sagger 200.
  • the lifting combination device 600 transports the saggers 200 of the outer circulation conveyor line 300 to the conveying mechanism 110 for stacking to form a stacked bowl assembly; then the conveying mechanism 110 transports the stacked bowl assembly from the feeding inlet 102 to Sintering is carried out in the kiln main body 100, and the sintered stacking bowl assembly is transported from the kiln body 100 to the feeding outlet 104; finally, the bowl unloading and separation device 700 separates the saggers 200 of the stacking bowl assembly on the conveying mechanism 110.
  • the material is unloaded and transported to the outer circulation conveyor line 300; since the two ends of the conveyor mechanism 110 extend to at least the feed inlet 102 and the feed outlet 104 respectively, the outer circulation conveyor line 300 is located on the top of the kiln body 100, plus The outer circulation conveyor line 300 is sequentially provided with a loading area and a vibrating dividing area along the conveying direction, so that the outer circulation conveyor line 300 transports the sagger 200 to the corresponding position of the vibrating leveling and cutting device 500 and the lifting combination device 600.
  • the lifting combination The device 600 transports the saggers 200 of the outer circulation conveyor line 300 to the conveying mechanism 110 for stacking to form a stacking bowl assembly.
  • the bowl unloading and separation device 700 unloads the saggers 200 of the stacking bowl assembly on the conveying mechanism 110 and transports them to On the external circulation conveyor line 300, the sintering process of the cathode material kiln is realized in this way, and the saggers 200 are circulated in the three-dimensional space at the same time. This enables the closed-loop conveyance and circulation of the saggers 200 in the three-dimensional space, and at the same time reduces the number of saggers 200, thereby reducing the number of saggers 200.
  • the sagger 200 reduces the use cost of the sagger 200 and make the processing volume of the sagger 200 in each section of the cycle process smaller; the above-mentioned lithium-ion battery cathode material kiln sintering system 10, because the sagger 200 has an external circulation conveyor line 300 and a lifting combination device 600.
  • the conveying mechanism 110 and the bowl unloading and separating device 700 operate in cycles, allowing the saggers 200 to circulate in the three-dimensional space, thereby reducing the footprint of the kiln sintering system 10.
  • the step of vibrating and dividing the materials in the sagger 200 into pieces by using the vibrating and cutting device 500 includes: first, vibrating the materials in the sagger 200 to spread the materials evenly. in the sagger 200; secondly, the materials in the sagger 200 after the vibration leveling operation are divided into pieces.
  • the materials are loaded into the bowl, and the unsintered positive electrode material is loaded into the long-slot sagger 200 (330mmL*2000mmW*100mmH).
  • the filling volume is 108% ( The same kiln space), the thickness of the material layer after the pot is installed remains the same as that of the conventional sagger 200;
  • the material is vibrated and cut into pieces, and the material in the sagger 200 is homogenized and divided into pieces to ensure the uniformity and adequacy of sintering of the material;
  • the upper and lower saggers 200 are assembled to stack the saggers, and the above-mentioned saggers 200 that have been vibrated and cut into pieces are completed by the lifting device;
  • the sagger 200 is put into the furnace for sintering.
  • the bottom groove of the sagger 200 is fitted with the limit ring of the roller rod 112 of the roller kiln.
  • the temperature of the sintering insulation zone is 700-1000°C (depending on the sintering process of different cathode materials).
  • the sintering time is 20-36h (including heating time, holding time and cooling time, depending on the sintering process of different cathode materials); in this embodiment, the heating rate is 1-2°C/min, the temperature is raised to 800 ⁇ 850°C, and then the temperature is raised to 900-950°C, keep warm for 11-13 hours;
  • the sagger 200 comes out of the furnace and is discharged into different saggars.
  • the upper and lower saggars 200 are separated through the sagger unloading separation device 700.
  • the separated sagger 200 is lifted to the saggar unloading station for unloading;
  • the empty sagger 200 after unloading is circulated on the outer circulation line.
  • the photoelectric sensors at the first and last ends of the belt conveyor group are clamped and positioned with the sagger 200 for starting and stopping the belt conveyor and positioning the sagger 200.
  • the materials are loaded into the bowl, and the unsintered positive electrode material is loaded into the long-slot sagger 200 (660mmL*2000mmW*100mmH).
  • the filling volume is 113% ( "
  • the material is vibrated and cut into pieces, and the material in the sagger 200 is homogenized and divided into pieces to ensure the uniformity and adequacy of sintering of the material;
  • the upper and lower saggers 200 are assembled to stack the saggers, and the above-mentioned saggers 200 that have been vibrated and cut into pieces are completed by the lifting device;
  • the sagger 200 is put into the furnace for sintering.
  • the bottom groove of the sagger 200 is fitted with the limit ring of the roller rod 112 of the roller kiln.
  • the temperature of the sintering insulation zone is 700-1000°C (depending on the sintering process of different cathode materials).
  • the sintering time is 20-36h (including heating time, holding time and cooling time, depending on the sintering process of different cathode materials); in this embodiment, the heating rate is 1-2°C/min, the temperature is raised to 800 ⁇ 850°C, and then the temperature is raised to 900-950°C, keep warm for 11-13 hours;
  • the sagger 200 comes out of the furnace and is discharged into different saggars.
  • the upper and lower saggars 200 are separated through the sagger unloading separation device 700.
  • the separated sagger 200 is lifted to the saggar unloading station for unloading;
  • the empty sagger 200 after unloading is circulated in the outer circulation line.
  • the photoelectric sensors at the first and last ends of the belt conveyor group are clamped and positioned with the sagger 200 for starting and stopping the belt conveyor and positioning the sagger 200.
  • the present invention has the following advantages:
  • the sagger 200 moves to the charging area along with the external circulation conveyor line 300, and the sagger 400 loads the materials to be sintered in the charging area.
  • the sagger 200 moves to the vibrating and dividing area along with the external circulation conveyor line 300, and the vibrating and cutting device 500 vibrates and divides the materials in the sagger 200 into pieces; then the lifting and lowering combination device 600
  • the saggers 200 of the outer circulation conveyor line 300 are transported to the conveying mechanism 110 and stacked to form a stacked bowl assembly; then the conveying mechanism 110 transports the stacked bowl assembly from the feeding inlet 102 to the kiln body 100 for sintering, and the sintering
  • the stacking bowl assembly is transported from the kiln body 100 to the material conveying outlet 104; finally, the bowl unloading and separation device 700 unloads the saggers 200 of the stacking bowl assembly on the conveying mechanism 110 and transports them to the outer circulation conveying line 300;
  • the external circulation conveying line 300 is located at the top of the kiln body 100, and the external circulation conveying line 300 is located sequentially along the conveying direction. There is a loading area and a vibrating dividing area, so that the outer circulation conveyor line 300 transports the saggers 200 to the corresponding positions of the vibrating cutting device 500 and the lifting combination device 600.
  • the bowls 200 are transported to the conveying mechanism 110 and stacked to form a stacked bowl assembly.
  • the bowl unloading and separation device 700 unloads the bowls 200 of the stacked bowl assembly on the conveying mechanism 110 and transports them to the outer circulation conveying line 300, thus realizing the positive electrode.
  • the sintering process of the material kiln simultaneously circulates the saggers 200 in the three-dimensional space, while reducing the number of saggers 200, thereby reducing the cost of using the saggers 200, and making the processing volume of the saggers 200 in each section of the cycle process smaller;
  • the sagger 200 since the sagger 200 circulates in the outer circulation conveyor line 300, the lifting combination device 600, the conveyor mechanism 110, and the sagger separation device 700, the sagger 200 is placed in the three-dimensional space. Internal circulation reduces the footprint of the kiln sintering system 10.
  • the above-mentioned lithium-ion battery cathode material kiln sintering system 10 improves the utilization of the kiln sintering space. Compared with the traditional multi-row sagger 200, the production capacity is increased, and under the same production capacity, the weight of the sagger 200 is Reduction, the cost of the sagger 200 itself is reduced, the weight of the kiln is reduced, the energy absorption of the sagger 200 body is reduced, etc.
  • the number of saggers 200 is lower, and the frequency of processing the saggers 200 in each supporting process is reduced, which increases the feasibility of increasing the speed of the kiln and increasing production.
  • the external circulation conveying line 300 is arranged above the roller kiln body to reduce the area occupied by the sintering area.
  • the outer circulation conveyor line 300 is a belt conveyor group, that is, the outer circulation conveyor line 300 is a static transmission.
  • the sagger 200 and The frictional vibration of the conveyor line body is reduced, reducing abnormal stress damage of the sagger 200 due to the transportation process, increasing the number of recycling times of the sagger 200 to a certain extent, and reducing the risk of metal foreign matter introduced by friction.
  • the lifting combination device 600 is combined with the unloading bowl separation device 700.
  • the sagger 200 is assembled and separated during the lifting process. There is no need to set up separate equipment or devices, which reduces the overall cost. The design cost of an assembly line.

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Abstract

本发明提供一种锂离子电池的正极材料窑炉烧结系统及方法。上述的锂离子电池的正极材料窑炉烧结系统包括窑炉主体、匣钵、外循环输送线、装钵装置、升降组合装置及卸钵分离装置，窑炉主体形成有输料入口及输料出口，窑炉主体设有输送机构，输送机构的两端分别至少延伸至输料入口和输料出口处；匣钵形成有装填槽；外循环输送线设于窑炉主体的顶部，外循环输送线用于输送匣钵移动，外循环输送线上沿输送方向依次设有装料区及振平分割区；装钵装置用于在装料区将待烧结的物料装入装填槽，实现正极材料窑炉烧结过程，同时使匣钵在立体空间内的循环流转，同时减少匣钵数量，进而减少匣钵的使用成本，并使循环过程各工段的匣钵处理量较小。

Description

锂离子电池的正极材料窑炉烧结系统及方法 技术领域
本发明涉及锂离子电池正极材料烧结的技术领域，特别是涉及一种锂离子电池的正极材料窑炉烧结系统及方法。
背景技术
锂离子电池因具备储存能量、可快速充放电、循环寿命长、环境友好等特点得到广泛应用于3C、动力电池和储能领域。正极材料对锂离子电池性能起到至关重要的因素，如钴酸锂、锰酸锂、磷酸铁锂、三元系正极材料等。正极材料生产工艺主要采用高温固相法工艺进行生产。在高温固相法工艺中，烧结工序是最核心最重要的工序，烧结过程中以匣钵作为正极材料前驱体与锂源混合物料的载体。
对于锂离子电池的正极材料窑炉设计，为有效增加烧结过程能源的利用率，在窑炉空间允许的前提下增加匣钵数量，使匣钵使用成本较高且匣钵循环过程各工段的匣钵处理量较大，同时使窑炉烧结系统占地面积较大。
发明内容
本发明的目的是克服传统的窑炉烧结系统存在匣钵使用成本较高且匣钵循环过程各工段的匣钵处理量较大，且存在占地面积较大的问题，提供一种锂离子电池的正极材料窑炉烧结系统及方法。
本发明的目的是通过以下技术方案来实现的：
一种锂离子电池的正极材料窑炉烧结系统，包括：
窑炉主体，形成有输料入口及输料出口，所述窑炉主体设有输送机构，所述输送机构的两端分别至少延伸至所述输料入口和所述输料出口处；
匣钵，形成有装填槽；
外循环输送线，设于所述窑炉主体的顶部，所述外循环输送线用于输送匣钵移动，所述外循环输送线上沿输送方向依次设有装料区及振平分割区；
装钵装置，设于所述装料区的上方，所述装钵装置用于在所述装料区将待烧结的物料装 入所述装填槽；
升降组合装置，邻近所述外循环输送线设置，所述升降组合装置用于将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠，形成叠钵组件；所述输送机构用于将所述叠钵组件从所述输料入口输送至所述窑炉主体内进行烧结，并将烧结后的所述叠钵组件从所述窑炉主体内输送至所述输料出口；
卸钵分离装置，邻近所述外循环输送线设置，所述卸钵分离装置用于将所述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上。
在其中一个实施例中，所述输料入口和所述输料出口分别形成于所述窑炉主体的两端，所述输送机构的两端分别延伸至所述输料入口和所述输料出口处。
在其中一个实施例中，所述输送机构包括多个间隔设置的窑辊棒。
在其中一个实施例中，每一所述窑辊棒的外周壁凸设有限位环凸起，所述匣钵的底部形成有限位凹槽，所述限位环凸起位于所述限位凹槽内并与所述匣钵滚动连接。
在其中一个实施例中，所述窑炉主体的顶部设有安装架，所述外循环输送线包括驱动电机、传输带、第一滚轮及第二滚轮，所述驱动电机设于所述安装架，所述第一滚轮及所述第二滚轮均转动连接于所述安装架，所述传输带分别套接于所述第一滚轮及所述第二滚轮，所述驱动电机的动力输出轴与所述第一滚轮的一端连接，所述传输带用于输送匣钵移动。
在其中一个实施例中，所述升降组合装置包括第一升降搬运机构及抓放机构，所述第一升降搬运机构分别邻近所述外循环输送线及所述窑炉主体设置，所述抓放机构设于所述第一升降搬运机构的动力输出端，所述抓放机构用于抓取或松放所述匣钵，以将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠。
在其中一个实施例中，所述第一升降搬运机构包括第一升降支撑架组、第二升降支撑架组及第一平移机构，所述第一升降支撑架组及所述第二升降支撑架组平行设置于所述外循环输送线的两侧，所述第一平移机构分别安装于所述第一升降支撑架组的动力输出端及所述第二升降支撑架组的动力输出端，使所述第一升降支撑架组及所述第二升降支撑架组共同驱动所述第一平移机构升降运动；所述抓放机构安装于所述第一平移机构的动力输出端。
在其中一个实施例中，所述卸钵分离装置包括第二升降搬运机构及旋转夹紧机构，所述第二升降搬运机构分别邻近所述外循环输送线及所述窑炉主体设置，所述旋转夹紧机构设于所述第二升降搬运机构的动力输出端，所述旋转夹紧机构用于夹紧并旋转所述匣钵，以将所 述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上。
在其中一个实施例中，所述外循环输送线上还设有振平分割区，所述装料区及所述振平分割区沿所述外循环输送线的输送方向依次设置；
所述正极材料窑炉烧结系统还包括振平切块装置，设于所述振平分割区的上方，所述振平切块装置用于将所述匣钵内的物料进行振平并分割成块；
一种锂离子电池的正极材料窑炉烧结方法，采用上述任一实施例所述的锂离子电池的正极材料窑炉烧结系统进行烧结，所述正极材料窑炉烧结方法包括：
通过所述装钵装置在装料区将待烧结的物料进行装入所述外循环输送线上的匣钵的装填槽内；
通过所述外循环输送线将装料后的匣钵输送至所述振平切块装置对应的位置；
通过所述升降组合装置将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠，以形成组合叠钵；
通过所述输送机构将所述叠钵组件从所述输料入口输送至所述窑炉主体内进行烧结，并将烧结后的所述叠钵组件从所述窑炉主体内输送至所述输料出口；
通过所述卸钵分离装置将所述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上；
通过将分离卸料后的匣钵通过所述外循环输送线流转回所述装料区。
与现有技术相比，本发明至少具有以下优点：
1、上述的锂离子电池的正极材料窑炉烧结系统，在运行时，首先匣钵随外循环输送线运动至装料区，且装钵装置在装料区将待烧结的物料装入装填槽；然后升降组合装置将外循环输送线的匣钵搬运至输送机构上堆叠，形成叠钵组件；然后输送机构将叠钵组件从输料入口输送至窑炉主体内进行烧结，并将烧结后的叠钵组件从窑炉主体内输送至输料出口；最后卸钵分离装置将输送机构上的叠钵组件的匣钵分别进行卸料并搬运至外循环输送线上；
2、由于输送机构的两端分别至少延伸至所述输料入口和所述输料出口处，外循环输送线设于窑炉主体的顶部，加上外循环输送线设有装料区，使外循环输送线分别输送匣钵运动至装钵装置及升降组合装置对应的位置，升降组合装置将外循环输送线的匣钵搬运至输送机构上堆叠以形成叠钵组件，卸钵分离装置将输送机构上的叠钵组件的匣钵分别进行卸料并搬运至外循环输送线上，如此实现正极材料窑炉烧结过程，同时使匣钵在立体空间内的循环流转， 同时减少匣钵数量，进而减少匣钵的使用成本，并使循环过程各工段的匣钵处理量较小；
3、上述的锂离子电池的正极材料窑炉烧结系统，由于匣钵在外循环输送线、升降组合装置、输送机构、卸钵分离装置循环运行，使匣钵在立体空间内循环流转，减小了窑炉烧结系统的占地面积。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，应当理解，以下附图仅示出了本发明的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1为一实施例的锂离子电池的正极材料窑炉烧结系统的示意图；
图2为图1所示正极材料窑炉烧结系统的剖视图；
图3为图1所示正极材料窑炉烧结系统的另一视角的局部示意图；
图4为图1所示正极材料窑炉烧结系统的又一视角的局部示意图；
图5为图2所示正极材料窑炉烧结系统的又一视角的局部示意图；
图6为图5所示正极材料窑炉烧结系统的匣钵的示意图；
图7为图2所示正极材料窑炉烧结系统的局部示意图；
图8为图7所示正极材料窑炉烧结系统的振平切块装置的切块装置的示意图；
图9为图2所示正极材料窑炉烧结系统的又一局部示意图；
图10为图9所示正极材料窑炉烧结系统的升降组合装置的示意图；
图11为图9所示正极材料窑炉烧结系统的卸钵分离装置的局部示意图。
具体实施方式
为了便于理解本发明，下面将参照相关附图对本发明进行更全面的描述。附图中给出了本发明的较佳实施方式。但是，本发明可以以许多不同的形式来实现，并不限于本文所描述的实施方式。相反地，提供这些实施方式的目的是使对本发明的公开内容理解的更加透彻全面。
需要说明的是，当元件被称为“固定于”另一个元件，它可以直接在另一个元件上或者也可以存在居中的元件。当一个元件被认为是“连接”另一个元件，它可以是直接连接到另一个元件或者可能同时存在居中元件。本文所使用的术语“垂直的”、“水平的”、“左”、“右”以及类 似的表述只是为了说明的目的，并不表示是唯一的实施方式。
除非另有定义，本文所使用的所有的技术和科学术语与属于本发明的技术领域的技术人员通常理解的含义相同。本文中在本发明的说明书中所使用的术语只是为了描述具体的实施方式的目的，不是旨在于限制本发明。本文所使用的术语“及/或”包括一个或多个相关的所列项目的任意的和所有的组合。
如图1至图3所示，一实施例的锂离子电池的正极材料窑炉烧结系统10包括窑炉主体100、匣钵200、外循环输送线300、装钵装置400、振平切块装置500、升降组合装置600以及卸钵分离装置700。其中，窑炉主体100形成有输料入口102及输料出口104，窑炉主体100设有输送机构110，输送机构110的两端分别至少延伸至输料入口102和输料出口104处。
进一步地，匣钵200形成有装填槽202，装填槽202用于填装待烧结的物料。外循环输送线300设于窑炉主体100的顶部，外循环输送线300用于输送匣钵200移动。匣钵200依次在外循环输送线300、升降组合装置600、输送机构110及卸钵分离装置700循环流转。
进一步地，外循环输送线300上沿输送方向依次设有装料区及振平分割区；装钵装置400设于装料区的上方，装钵装置400用于在装料区将待烧结的物料装入装填槽202；振平切块装置500设于振平分割区的上方，振平切块装置500用于将匣钵200内的物料进行振平并分割成块，即振平切块装置500将匣钵200内的物料进行振平操作，并将匣钵200内振平的物料进行分割，形成多个并排的物料块，振平切块装置500将匣钵200内的物料进行振平操作，使物料均匀平铺于匣钵200内，由于匣钵200内的多个并排的物料块经烧结之后同时形成多个正极材料块，相比于传统的一个匣钵200对应烧结形成一个正极材料块的方式，大大减少匣钵200的数目，同时大大减少了无效装载物料的空间，并减小了窑炉主体100的承重量；在同等的正极材料块的烧结需求下，降低了窑炉主体100的能耗。
进一步地，升降组合装置600邻近外循环输送线300设置，升降组合装置600用于将外循环输送线300的匣钵200搬运至输送机构110上堆叠，形成叠钵组件。输送机构110用于将叠钵组件从输料入口102输送至窑炉主体100内进行烧结，并将烧结后的叠钵组件从窑炉主体100内输送至输料出口104，使匣钵200内的块状物料烧结成型，使匣钵200以叠钵组件的形式通过输送机构110进行运送，使窑炉主体100至少对两个以上的匣钵200同时进行烧结，提高了窑炉主体100的能源利用率。卸钵分离装置700邻近外循环输送线300设置，卸钵分离装置700用于将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循 环输送线300上，即卸钵分离装置700将输送机构110上的叠钵组件的匣钵200内烧结好的材料块进行卸料，并将卸料后的空匣钵200搬运至外循环输送线300上，使外循环输送线300将空匣钵200循环流转至装料区循环利用，中间无需增设空匣钵200的存放工位，同时实现持续不断的烧结进程。
上述的锂离子电池的正极材料窑炉烧结系统10，在运行时，首先匣钵200随外循环输送线300运动至装料区，且装钵装置400在装料区将待烧结的物料装入装填槽202；然后匣钵200随外循环输送线300运动至振平分割区，且振平切块装置500将匣钵200内的物料进行振平并分割成块；然后升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠，形成叠钵组件；然后输送机构110将叠钵组件从输料入口102输送至窑炉主体100内进行烧结，并将烧结后的叠钵组件从窑炉主体100内输送至输料出口104；最后卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上；由于输送机构110的两端分别至少延伸至输料入口102和输料出口104处，外循环输送线300设于窑炉主体100的顶部，加上外循环输送线300沿输送方向依次设有装料区及振平分割区，使外循环输送线300分别输送匣钵200运动至振平切块装置500及升降组合装置600对应的位置，升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠以形成叠钵组件，卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上，如此实现正极材料窑炉烧结过程，同时使匣钵200在立体空间内的循环流转，即使匣钵200在立体空间内的闭环输送流转，同时减少匣钵200数量，进而减少匣钵200的使用成本，并使循环过程各工段的匣钵200处理量较小；上述的锂离子电池的正极材料窑炉烧结系统10，由于匣钵200在外循环输送线300、升降组合装置600、输送机构110、卸钵分离装置700循环运行，使匣钵200在立体空间内循环流转，减小了窑炉烧结系统10的占地面积。
可以理解，在其他实施例中，振平切块装置500可以省略。装钵装置400在装料区能够将待烧结的物料均匀装入装填槽202内，至少无需再进行振平操作。
如图1所示，可以理解，叠钵组件的匣钵200数目为多个，即叠钵组件的匣钵200数目可以是两个或三个或四个等。在本实施例中，叠钵组件的数目为三个。多个匣钵200堆叠放置形成叠钵组件。
如图2至图4所示，在其中一个实施例中，输料入口102和输料出口104分别形成于窑 炉主体100的两端，输送机构110的两端分别延伸至输料入口102和输料出口104处，输送机构110的一端分别延伸至输料入口102，以便升降组合装置600在输料入口102处直接在输送机构110上将匣钵200堆叠形成叠钵组件，加上输送机构110的另一端分别延伸至输料出口104，以便卸钵分离装置700在输料出口104处直接在输送机构110上将叠钵组件的匣钵200逐个进行卸料并搬运至外循环输送线300上。
如图1及图4所示，在其中一个实施例中，输送机构110包括多个间隔设置的窑辊棒112，使多个窑辊棒112间隔并排设置，以便对多个叠钵组件进行间隔运送，有利于对批量的多个叠钵组件先后进行烧结，加上外循环输送线300、升降组合装置600及卸钵分离装置700的配合作用，使正极材料窑炉烧结系统10能够实现循环批量烧结要求。
如图1及图4所示，进一步地，输送机构110还包括驱动源114、主动齿轮116及多个从动齿轮118，驱动源114设于窑炉主体100，主动齿轮116设于驱动源114的动力输出轴，多个从动齿轮118分别套设于相应的窑辊棒112，多个从动齿轮118依次啮合传动，主动齿轮116与其中一个从动齿轮118啮合传动，使输送机构110能够驱动多个窑辊棒112相对于窑炉主体100同步转动，进而实现多个窑辊棒112同时转动。可以理解，在本实施例中，驱动源114、主动齿轮116及多个从动齿轮118均位于窑炉主体100的外围。驱动源114可以为驱动电机或驱动气缸等。
如图1及图5所示，在其中一个实施例中，每一窑辊棒112的外周壁凸设有限位环凸起112a，匣钵200的底部形成有限位凹槽204，限位环凸起112a位于限位凹槽204内并与匣钵200滚动连接，使叠钵组件的匣钵200的限位凹槽204通过限位环凸起112a的限位运送，进而限制了叠钵组件的在窑炉主体100内的运行轨迹，防止因走歪导致的窑炉堵塞乃至引起辊棒坍塌的问题。在本实施例中，限位环凸起112a沿窑辊棒112的外周壁环绕一圈，使窑辊棒112在相对于窑炉主体100转动时均能对叠钵组件的匣钵200进行限位。在其中一个实施例中，限位环凸起112a的高度略小于匣钵200的限位凹槽204的深度，且限位环凸起112a的宽度略小于限位凹槽204的宽度，便于匣钵200在窑辊棒112上运行时限位凹槽204与限位环凸起112a嵌合，防止匣钵200在运行时横向或纵向的歪斜。
进一步地，窑炉主体100设有隔热保温层，使窑体起到隔热保温的作用。如图4所示，进一步地，窑炉主体100内壁设有上加热棒103及下加热棒105，上加热棒103及下加热棒105分别位于输送机构110的两侧，上加热棒103及下加热棒105同时对叠钵组件进行加热 烧结，以更好地将热量均匀地辐射到上下层匣钵200的物料中。在本实施例中，上加热棒103的数目及下加热棒105的数目均为多个，多个上加热棒103并排设置，多个下加热棒105并排设置。
在一个实施例中，窑炉主体100还设有进风系统及排气系统，进气系统包括打入风机和进气管道，进气口设置于窑体主体的底部和侧边，侧边进气口与匣钵200平行，更好的保证烧结的充分性和一致性；排气系统包括排气风机和排气管道，排气管道设置于窑体主体的升温段和冷却段，将正极材料反应烧结过程产生的废气和余热排出。
进一步地，窑体主体内设有隔断分区，使得不同温区内的温度和气氛相对均匀保证物料烧结的一致性。在本实施例中，窑体主体内设有多个隔断分区，以将窑体主体内沿输送机构110依次分为升温段、保温段和冷却段。更进一步地，升温段的升温速率为1℃/min～2℃/min，升温至800℃～850℃，随后升温至900℃～950℃，以更好地对物料进行烧结。在本实施例中，通过第一次升温至800℃～850℃，通过第二次升温至900℃～950℃。更进一步地，保温时间为11h～13h；更进一步地，升温时间为8h～16h，以更好地对物料进行烧结。
进一步地，外循环输送线300的输送末端的下方设置有余料收集盒(图未示)，用于收集匣钵200外侧掉落在外循环输送线300上的余料，使窑炉烧结系统10较整洁。
可以理解，在输送机构110对叠钵组件进行输送过程中，需要同时兼顾叠钵停留时间、烧结停留时间及卸钵停留时间，为使升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠形成叠钵组件，并使叠钵组件的匣钵200内的待烧结材料可靠地烧结，并使烧结后的叠钵组件的匣钵200内的烧结块可靠地卸料并转移至外循环输送线300，进一步地，烧结停留时间大于或等于叠钵停留时间，且烧结停留时间大于或等于卸钵停留时间，使升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠形成叠钵组件，并使叠钵组件的匣钵200内的待烧结材料可靠地烧结，并使烧结后的叠钵组件的匣钵200内的烧结块可靠地卸料并转移至外循环输送线300。
如图3所示，在其中一个实施例中，窑炉主体100的顶部设有安装架(图未示)，外循环输送线300包括驱动电机(图未示)、传输带320、第一滚轮330及第二滚轮340，驱动电机设于安装架，第一滚轮及第二滚轮均转动连接于安装架，传输带分别套接于第一滚轮及第二滚轮，驱动电机的动力输出轴与第一滚轮的一端连接，传输带用于输送匣钵200移动，以使匣钵200分别移动至装料区及振平分割区等位置。
可以理解，在装料区及振平分割区等位置需要停留的时间存在不相等的情形。进一步地，外循环输送线300的数目为多个，多个外循环输送线300并排邻近设置。在本实施例中，外循环输送线300的数目为四个，分别为第一外循环输送线、第二外循环输送线、第三外循环输送线及第四外循环输送线，第一外循环输送线、第二外循环输送线、第三外循环输送线及第四外循环输送线均设于窑炉主体100的顶部，第一外循环输送线邻近升降组合装置600设置，第二外循环输送线邻近振平切块装置500设置，第三外循环输送线邻近装钵装置400设置，第四外循环输送线邻近卸钵分离装置700设置。装料区设于第三外循环输送线，振平分割区设于第二外循环输送线，升降组合装置600用于将第一外循环输送线的匣钵200搬运至输送机构110上堆叠，卸钵分离装置700用于将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至第四外循环输送线上。
如图3所示，进一步地，锂离子电池的正极材料窑炉烧结系统10还包括多个感应器800，多个感应器800与多个外循环输送线300一一对应设置，每一感应器与相应的外循环输送线300的驱动电机的控制端电连接，当每一外循环输送线300对应的感应器感应到匣钵200时，外循环输送线300停止运转一段时间，以便可靠地进行填装物料、振平分割、搬离匣钵200、放置空匣钵200等操作。具体地，当第一外循环输送线停止时，升降组合装置600用于将第一外循环输送线的匣钵200搬运至输送机构110上堆叠，即升降组合装置600用于将第一外循环输送线的匣钵200搬离；当第二外循环输送线停止时，振平切块装置500用于将第二外循环输送线的匣钵200内的物料进行振平并分割成块，即振平切块装置500将匣钵200内的物料进行振平操作，并将匣钵200内振平的物料进行分割；当第三外循环输送线停止时，装钵装置400在装料区将待烧结的物料装入装填槽202；当第四外循环输送线停止时，卸钵分离装置700将输送机构110上的叠钵组件的匣钵200内烧结好的材料块进行卸料，并将卸料后的空匣钵200搬运至第四外循环输送线上。感应器可以为光电传感器或其他传感器。
更进一步地，正极材料窑炉烧结系统10还包括多个夹持定位装置，多个夹持定位装置与多个感应器一一对应设置，多个夹持定位装置与多个外循环输送线300一一对应设置。当感应器感应到外循环输送线300的匣钵200时，外循环输送线300停止动作，相应的夹持定位装置对匣钵200进行夹持定位，以便进行填装物料、振平分割、搬离匣钵200、放置空匣钵200等操作。在本实施例中，每一夹持定位装置包括两个相对设置的夹持组件，两个夹持组件分别位于输送机构110的外循环输送线300的两边。在本实施例中，夹持组件包括夹持气 缸及夹持板，夹持板连接于夹持气缸的动力轴上。
如图2所示，进一步地，振平切块装置500包括振平装置510及切块装置520，振平装置510及切块装置520沿外循环输送线300的输送方向依次设置，外循环输送线300上的振平分割区包括振平区及分割区，振平区与振平装置510对应设置，分割区与切块装置520对应设置。在本实施例中，振平装置510用于将匣钵200内的物料进行振平操作，切块装置520用于将匣钵200内振平的物料进行分割，形成多个并排的物料块。在本实施例中，振平区及分割区均对应设有夹持定位装置，以便对匣钵200进行夹持定位，进而进行振平或分割操作。
如图1及图7所示，更进一步地，振平装置510包括振动机构512及顶升机构514，振动机构512设于外循环输送线300的上方，顶升机构514包括顶升气缸5142及顶升组件5144，顶升组件安装于窑炉主体100的顶部，顶升组件安装于顶升气缸的动力输出端，顶升组件用于支撑并顶起匣钵200，使匣钵200抵接于振动电机上，以对匣钵200进行振平操作。在本实施例中，顶升组件包括顶升座，顶升座连接于顶升气缸的动力轴上，两个夹持组件相对安装于顶升座，两个夹持组件共同用于夹紧于匣钵200的两侧，以使顶升组件支撑并顶起匣钵200。更进一步地，振动机构512包括固定座5122、振动电机5124及振动罩板5126，固定座通过固定架安装于窑炉主体100，振动电机安装于固定座，振动电机设于振动罩板，振动罩板位于振平区的上方，振动罩板用于在顶升组件支撑并顶起匣钵200至预定高度时抵接于匣钵200，以对匣钵200进行振平操作。更进一步地，振动罩板5126的抵接面设有密封凸圈5127，密封凸圈弹性抵接于匣钵200的装填槽202口处，在振动时起到密封作用，以防振平过程中粉尘泄漏。
如图2、图7及图8所示，更进一步地，切块装置520包括切块驱动气缸522及切刀座524，切块驱动气缸522设于窑炉主体100的上方，切刀座524安装于切块驱动气缸522的动力轴上，切块驱动气缸522驱动切刀座524升降运动，以对匣钵200内振平的物料进行分割。在本实施例中，切刀座524包括切刀固定板5242及多个切刀5244，切刀固定板5242安装于切块驱动气缸522的动力轴上，多个切刀5244间隔设置于切刀固定板5242上，切块驱动气缸522驱动切刀座524升降运动，以将匣钵200内振平的物料进行分割。
如图9及图10所示，在其中一个实施例中，升降组合装置600包括第一升降搬运机构610及抓放机构620，第一升降搬运机构610分别邻近外循环输送线300及窑炉主体100设置，抓放机构设于第一升降搬运机构610的动力输出端，抓放机构620用于抓取或松放匣钵200， 以将外循环输送线300的匣钵200搬运至输送机构110上堆叠。
如图9及图10所示，在其中一个实施例中，第一升降搬运机构610包括第一升降支撑架组612、第二升降支撑架组614及第一平移机构616，第一升降支撑架组612及第二升降支撑架组614平行设置于外循环输送线300的两侧，第一平移机构616分别安装于第一升降支撑架组612的动力输出端及第二升降支撑架组614的动力输出端，使第一升降支撑架组612及第二升降支撑架组614共同驱动第一平移机构616升降运动。抓放机构620安装于第一平移机构616的动力输出端，使第一平移机构616带动抓放机构620平移，加上第一升降支撑架组612及第二升降支撑架组614共同驱动第一平移机构616升降运动，进而使抓放机构620更好地将外循环输送线300的匣钵200搬运至输送机构110上堆叠。
如图9及图10所示，进一步地，第一升降支撑架组612包括第一支撑架6122、第一升降电机6124及第一滑架6126，第一支撑架6122及第一升降电机6124的数目均为两个，两个第一支撑架6122平行设置，两个第一升降电机6124与两个第一支撑架6122一一对应设置，第一滑架6126分别滑动连接于两个第一支撑架6122，两个第一升降电机6124同时驱动第一滑架6126分别相对于两个第一支撑架6122升降滑动；更进一步地，第二升降支撑架组614包括第二支撑架6142、第二升降电机6144及第二滑架6146，第二支撑架6142及第二升降电机6144的数目均为两个，两个第二支撑架6142平行设置，两个第二升降电机6144与两个第二支撑架6142一一对应设置，第二滑架6146分别滑动连接于两个第二支撑架6142，两个第二升降电机6144同时驱动第二滑架6146分别相对于两个第二支撑架6142升降滑动；第一平移机构616分别安装于第一滑架6126及第二滑架6146。
如图9及图10所示，更进一步地，第一平移机构616包括第一平移驱动电机6162、第二平移驱动电机6164及平移板6166，第一平移驱动电机6162设于第一滑架6126上，第二平移驱动电机6164设于第二滑架6146上，平移板6166分别安装于第一平移驱动电机6162的动力输出座及第二平移驱动电机6164的动力输出座上。抓放机构620安装于平移板6166上，使第一平移机构616带动抓放机构620平移。在本实施例中，抓放机构620的数目为多个，多个抓放机构620沿平移板6166的长度方向间隔设置，使多个抓放机构620共同对匣钵200进行抓取或松放操作，进而使匣钵200在随抓放机构620移动时更加平稳。
如图10所示，更进一步地，每一抓放机构620包括夹紧气缸622及两个夹爪624，两个夹爪624分别设于夹紧气缸622的两个动力输出端上，夹紧气缸622驱动两个夹爪624同时 靠近或远离，以实现对匣钵200进行抓取或松放操作。更进一步地，每一夹爪624包括夹爪座6242及弯爪部6244，夹爪座6242固定连接于夹紧气缸622的动力输出端上，弯爪部6244连接于夹爪座6242的端部，弯爪部6244呈弯折状，两个弯爪部6244朝相互靠近的方向折弯，使每一抓放机构620的两个夹爪624更好地对匣钵200进行抓取或松放操作。
如图10及图6所示，更进一步地，每一弯爪部6244呈L型，使每一弯爪部6244更好地从匣钵200的侧壁移动，进而使两个弯爪部6244的弯爪部6244更好地抓取匣钵200。更进一步地，匣钵200的底部开设有两个夹持固定槽206，使两个弯爪部6244的弯爪部6244在抓取匣钵200时分别通过相应的夹持固定槽抓取，同时使两个弯爪部6244的弯爪部6244更好地抓取匣钵200。更进一步地，两个夹持固定槽相互连通，以便每一夹持固定槽的加工，同时减轻匣钵200的重量。在本实施例中，两个夹持固定槽相互连通形成夹持贯穿槽，夹持贯穿槽的数目为多个。在对匣钵200进行抓取时，多个抓放机构620一一对应夹持于夹持贯穿槽内。
如图9及图11所示，在其中一个实施例中，卸钵分离装置700包括第二升降搬运机构710及旋转夹紧机构720，第二升降搬运机构710分别邻近外循环输送线300及窑炉主体100设置，旋转夹紧机构720设于第二升降搬运机构710的动力输出端，旋转夹紧机构720用于夹紧并旋转匣钵200，以将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上。在本实施例中，在将输送机构110上的叠钵组件的匣钵200进行卸料时，旋转夹紧机构720夹紧匣钵200，第二升降搬运机构710驱动旋转夹紧机构720移动至卸料区的上方，旋转夹紧机构720夹紧并沿顺时针旋转匣钵200至180度，使匣钵200内的烧结块卸料至卸料区内；在将输送机构110上的叠钵组件的匣钵200搬运至外循环输送线300上时，旋转夹紧机构720夹紧并沿逆时针旋转匣钵200至180度，第二升降搬运机构710驱动旋转夹紧机构720移动至外循环输送线300上。
如图9及图11所示，进一步地，第二升降搬运机构710包括两个第三升降支撑架组712及第二平移机构714，两个第三升降支撑架组712平行设置于外循环输送线300的两侧，第二平移机构714分别安装于两个第三升降支撑架组712的动力输出端，使两个第三升降支撑架组712共同驱动相应的安装板7265升降运动。旋转夹紧机构720的数目为两个，两个旋转夹紧机构720分别安装固定于第二平移机构714的动力输出端，使第二平移机构714同时驱动两个旋转夹紧机构720运动。两个旋转夹紧机构720共同夹紧并旋转匣钵200。
如图9及图11所示，更进一步地，第二平移机构714包括两个平移气缸组件，两个平移气缸组件分别安装于两个第三升降支撑架组712的动力输出端，两个旋转夹紧机构720分别安装固定于相应的平移气缸组件的动力输出座上。在本实施例中，每一旋转夹紧机构720包括固定板722、旋转气缸724及夹紧组件726，每一旋转夹紧机构720的固定板722安装于相应的平移气缸组件的动力输出座上，旋转气缸724安装于固定板722，夹紧组件726安装于旋转气缸724的旋转动力轴上，两个旋转夹紧机构720的夹紧组件726的夹紧动力方向相反，使两个旋转夹紧机构720共同对匣钵200进行夹紧并同步旋转操作。更进一步地，每一旋转夹紧机构720的夹紧组件726包括推动气缸7262、插板件7264及升降夹紧件7266，两个旋转夹紧机构720的夹紧组件726的动力输出方向相反，插板件7264安装于推动气缸7262的动力轴，升降夹紧件7266安装于插板件7264上，升降夹紧件7266的夹紧部朝靠近或远离插板件7264的方向运动，使夹紧部在竖直方向作用于匣钵200的顶部，以将匣钵200压紧于插板件7264上，使两个旋转夹紧机构720的夹紧组件726更好地夹紧匣钵200并进行旋转操作。
如图9及图11所示，更进一步地，插板件7264包括相连接的安装板7265及支撑延伸板7267，安装板7265安装于推动气缸7262的动力轴，升降夹紧件7266安装于安装板7265，支撑延伸板7267连接于安装板7265的远离夹紧部的一端，当旋转夹紧机构720对匣钵200进行夹紧操作时，推动气缸7262驱动安装板7265运动，以使安装板7265带动支撑延伸板7267插入匣钵200的底部，升降夹紧件7266的夹紧部作用于匣钵200的顶部，以将匣钵200压紧于插板件7264上。在本实施例中，安装板7265及支撑延伸板7267为一体成型结构，使插板件7264结构较简单，同时使安装板7265及支撑延伸板7267牢固连接。同时参见图6，更进一步地，匣钵200的两侧的底部分别开设有插槽208，支撑延伸板7267插入插槽内，使支撑延伸板7267更好地插入匣钵200的底部。更进一步地，升降夹紧件7266包括升降夹紧气缸7267及压紧部7269，升降夹紧气缸622安装于安装板7265，压紧部固定连接于升降夹紧气缸622的动力轴上，使压紧部朝靠近或远离插板件7264的方向运动。具体地，压紧部为压紧柱结构。
如图5及图9所示，更进一步地，输料出口104处设有光电对射传感器组件1042，光电对射传感器组件与卸钵分离装置700的控制端通信连接，当叠钵组件随输送机构110运送至与光电对射传感器组件对应的位置时，光电对射传感器组件产生感应信号，卸钵分离装置700开始动作，以将输送机构110上的叠钵组件的匣钵200内烧结好的材料块进行卸料，并将卸 料后的空匣钵200搬运至外循环输送线300上，实现快速精准地对匣钵200进行卸料并流转。在本实施例中，光电对射传感器组件包括至少一组光电对射传感器。可以理解，光电对射传感器的组数可以为一组或两组以上，具体数目可以根据叠钵组件的匣钵200的数目或层数进行选择，以使卸钵分离装置700能够对叠钵组件的匣钵200逐个进行卸料并搬运至外循环输送线300上。
本申请还提供一种锂离子电池的正极材料窑炉烧结方法，采用上述任一实施例的锂离子电池的正极材料窑炉烧结系统10进行烧结，正极材料窑炉烧结方法包括以下步骤的部分或全部：
S101，通过装钵装置400在装料区将待烧结的物料进行装入外循环输送线300上的匣钵200的装填槽202内；
S103，通过外循环输送线300将装料后的匣钵200输送至振平切块装置500对应的位置；
S105，通过振平切块装置500将匣钵200内的物料进行振平并分割成块；
S107，通过升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠，以形成组合叠钵；
S109，通过输送机构110将叠钵组件从输料入口102输送至窑炉主体100内进行烧结，并将烧结后的叠钵组件从窑炉主体100内输送至输料出口104；
S111，通过卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上；
S113，通过将分离卸料后的匣钵200通过外循环输送线300流转回装料区。
上述的锂离子电池的正极材料窑炉烧结方法，采用锂离子电池的正极材料窑炉烧结系统10进行烧结，在运行时，首先匣钵200随外循环输送线300运动至装料区，且装钵装置400在装料区将待烧结的物料装入装填槽202；然后匣钵200随外循环输送线300运动至振平分割区，且振平切块装置500将匣钵200内的物料进行振平并分割成块；然后升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠，形成叠钵组件；然后输送机构110将叠钵组件从输料入口102输送至窑炉主体100内进行烧结，并将烧结后的叠钵组件从窑炉主体100内输送至输料出口104；最后卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上；由于输送机构110的两端分别至少延伸至输料入口102和输料出口104处，外循环输送线300设于窑炉主体100的顶部，加上 外循环输送线300沿输送方向依次设有装料区及振平分割区，使外循环输送线300分别输送匣钵200运动至振平切块装置500及升降组合装置600对应的位置，升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠以形成叠钵组件，卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上，如此实现正极材料窑炉烧结过程，同时使匣钵200在立体空间内的循环流转，即使匣钵200在立体空间内的闭环输送流转，同时减少匣钵200数量，进而减少匣钵200的使用成本，并使循环过程各工段的匣钵200处理量较小；上述的锂离子电池的正极材料窑炉烧结系统10，由于匣钵200在外循环输送线300、升降组合装置600、输送机构110、卸钵分离装置700循环运行，使匣钵200在立体空间内循环流转，减小了窑炉烧结系统10的占地面积。
在其中一个实施例中，通过振平切块装置500将匣钵200内的物料进行振平并分割成块的步骤包括：首先将匣钵200内的物料进行振平操作，使物料均匀平铺于匣钵200内；其次对振平操作后的匣钵200内的物料分割成块。
为更好地理解锂离子电池的正极材料窑炉烧结方法，以下对锂离子电池的正极材料窑炉烧结方法进行具体介绍：
实施例1：
首先，物料装钵，将未烧结的正极材料装入长槽型匣钵200(330mmL*2000mmW*100mmH)中，装钵量为6列常规匣钵200(330mmL*330mmW*100mmH)的108％(同样的窑炉空间)，装钵后料层厚度与常规匣钵200保持一致；
其次，物料振平切块，将匣钵200内的物料均质化平铺、分割成块，保证物料烧结的均匀性和充分性；
其次，上下层匣钵200组合叠钵，上述经振平切块的匣钵200经升降装置完成叠钵；
其次，匣钵200进炉烧结，匣钵200底部凹槽与辊道窑辊棒112限位环嵌合，烧结保温区温度为700-1000℃(根据不同正极材料烧结工艺而定)，烧结时间为20-36h(包括升温时间、保温时间和冷却时间，根据不同正极材料烧结工艺而定)；在本实施例中，升温速率为1-2℃/min，升温至800～850℃，随后升温至900-950℃，保温11-13h；
其次，匣钵200出炉分钵卸料，匣钵200出炉后经由卸钵分离装置700，将上下层匣钵200分离，分离后的匣钵200提升至卸钵工位处进行卸料；
最后，卸料完成后的空匣钵200在外循环线体进行流转，皮带输送组首末两端的光电传 感器与匣钵200夹持定位装置，用于皮带输送的启停和匣钵200的定位。
实施例2：
首先，物料装钵，将未烧结的正极材料装入长槽型匣钵200(660mmL*2000mmW*100mmH)中，装钵量为6列常规匣钵200(330mmL*330mmW*100mmH)的113％(X为6列常规匣钵200的装钵量)，装钵后料层厚度与常规匣钵200保持一致；
其次，物料振平切块，将匣钵200内的物料均质化平铺、分割成块，保证物料烧结的均匀性和充分性；
其次，上下层匣钵200组合叠钵，上述经振平切块的匣钵200经升降装置完成叠钵；
其次，匣钵200进炉烧结，匣钵200底部凹槽与辊道窑辊棒112限位环嵌合，烧结保温区温度为700-1000℃(根据不同正极材料烧结工艺而定)，烧结时间为20-36h(包括升温时间、保温时间和冷却时间，根据不同正极材料烧结工艺而定)；在本实施例中，升温速率为1-2℃/min，升温至800～850℃，随后升温至900-950℃，保温11-13h；
其次，匣钵200出炉分钵卸料，匣钵200出炉后经由卸钵分离装置700，将上下层匣钵200分离，分离后的匣钵200提升至卸钵工位处进行卸料；
其次，卸料完成后的空匣钵200在外循环线体进行流转，皮带输送组首末两端的光电传感器与匣钵200夹持定位装置，用于皮带输送的启停和匣钵200的定位。
下列图表为实施例1、实施例2及对比例实施前后的对比：
Figure PCTCN2022122272-appb-000001
与现有技术相比，本发明具有以下优点：
1、上述的锂离子电池的正极材料窑炉烧结系统10，在运行时，首先匣钵200随外循环输送线300运动至装料区，且装钵装置400在装料区将待烧结的物料装入装填槽202；然后匣钵200随外循环输送线300运动至振平分割区，且振平切块装置500将匣钵200内的物料进行振平并分割成块；然后升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠，形成叠钵组件；然后输送机构110将叠钵组件从输料入口102输送至窑炉主 体100内进行烧结，并将烧结后的叠钵组件从窑炉主体100内输送至输料出口104；最后卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上；
2、由于输送机构110的两端分别至少延伸至输料入口102和输料出口104处，外循环输送线300设于窑炉主体100的顶部，加上外循环输送线300沿输送方向依次设有装料区及振平分割区，使外循环输送线300分别输送匣钵200运动至振平切块装置500及升降组合装置600对应的位置，升降组合装置600将外循环输送线300的匣钵200搬运至输送机构110上堆叠以形成叠钵组件，卸钵分离装置700将输送机构110上的叠钵组件的匣钵200分别进行卸料并搬运至外循环输送线300上，如此实现正极材料窑炉烧结过程，同时使匣钵200在立体空间内的循环流转，同时减少匣钵200数量，进而减少匣钵200的使用成本，并使循环过程各工段的匣钵200处理量较小；
3、上述的锂离子电池的正极材料窑炉烧结系统10，由于匣钵200在外循环输送线300、升降组合装置600、输送机构110、卸钵分离装置700循环运行，使匣钵200在立体空间内循环流转，减小了窑炉烧结系统10的占地面积。
4、上述的锂离子电池的正极材料窑炉烧结系统10，提高了窑炉烧结空间的利用率，同比传统的多列匣钵200，产能增加，且在同等产能的条件下匣钵200的重量减少，匣钵200自身成本减少、窑炉承重量减少、匣钵200钵体吸能减少等。
5、上述的锂离子电池的正极材料窑炉烧结系统10，匣钵200数量更低，其配套各工序处理匣钵200频次降低，增加窑炉增速提产的可行性。
6、上述的锂离子电池的正极材料窑炉烧结系统10，辊棒限位环凸起112a与匣钵200底部凹槽的使用，减少匣钵200输送歪斜异常。
7、上述的锂离子电池的正极材料窑炉烧结系统10，外循环输送线300设置于辊道窑体上方，减少烧结区域的占地面积。
8、上述的锂离子电池的正极材料窑炉烧结系统10，外循环输送线300为皮带输送组，即外循环输送线300为静态传送，相比传统倍速链式的动态传送，匣钵200与输送线体的摩擦振动减少，减少匣钵200因输送过程出现的应力破损异常，一定程度上提高匣钵200循环利用次数，同时减少摩擦引入的金属异物风险。
9、上述的锂离子电池的正极材料窑炉烧结系统10，升降组合装置600与卸钵分离装置 700进行结合，匣钵200在升降过程完成组合及分离，无需单独设置设备或装置，降低了整条流水线的设计成本。
以上所述实施例仅表达了本发明的几种实施方式，其描述较为具体和详细，但并不能因此而理解为对发明专利范围的限制。应当指出的是，对于本领域的普通技术人员来说，在不脱离本发明构思的前提下，还可以做出若干变形和改进，这些都属于本发明的保护范围。因此，本发明专利的保护范围应以所附权利要求为准。

Claims (10)

  1. 一种锂离子电池的正极材料窑炉烧结系统，其特征在于，包括：
    窑炉主体，形成有输料入口及输料出口，所述窑炉主体设有输送机构，所述输送机构的两端分别至少延伸至所述输料入口和所述输料出口处；
    匣钵，形成有装填槽；
    外循环输送线，设于所述窑炉主体的顶部，所述外循环输送线用于输送匣钵移动，所述外循环输送线上设有装料区；
    装钵装置，设于所述装料区的上方，所述装钵装置用于在所述装料区将待烧结的物料装入所述装填槽；
    升降组合装置，邻近所述外循环输送线设置，所述升降组合装置用于将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠，形成叠钵组件；所述输送机构用于将所述叠钵组件从所述输料入口输送至所述窑炉主体内进行烧结，并将烧结后的所述叠钵组件从所述窑炉主体内输送至所述输料出口；
    卸钵分离装置，邻近所述外循环输送线设置，所述卸钵分离装置用于将所述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上。
  2. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述输料入口和所述输料出口分别形成于所述窑炉主体的两端，所述输送机构的两端分别延伸至所述输料入口和所述输料出口处。
  3. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述输送机构包括多个间隔设置的窑辊棒。
  4. 根据权利要求3所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，每一所述窑辊棒的外周壁凸设有限位环凸起，所述匣钵的底部形成有限位凹槽，所述限位环凸起位于所述限位凹槽内并与所述匣钵滚动连接。
  5. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述窑炉主体的顶部设有安装架，所述外循环输送线包括驱动电机、传输带、第一滚轮及第二滚轮，所述驱动电机设于所述安装架，所述第一滚轮及所述第二滚轮均转动连接于所述安装架，所述传输带分别套接于所述第一滚轮及所述第二滚轮，所述驱动电机的动力输出轴与所述第一 滚轮的一端连接，所述传输带用于输送匣钵移动。
  6. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述升降组合装置包括第一升降搬运机构及抓放机构，所述第一升降搬运机构分别邻近所述外循环输送线及所述窑炉主体设置，所述抓放机构设于所述第一升降搬运机构的动力输出端，所述抓放机构用于抓取或松放所述匣钵，以将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠。
  7. 根据权利要求6所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述第一升降搬运机构包括第一升降支撑架组、第二升降支撑架组及第一平移机构，所述第一升降支撑架组及所述第二升降支撑架组平行设置于所述外循环输送线的两侧，所述第一平移机构分别安装于所述第一升降支撑架组的动力输出端及所述第二升降支撑架组的动力输出端，使所述第一升降支撑架组及所述第二升降支撑架组共同驱动所述第一平移机构升降运动；所述抓放机构安装于所述第一平移机构的动力输出端。
  8. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述卸钵分离装置包括第二升降搬运机构及旋转夹紧机构，所述第二升降搬运机构分别邻近所述外循环输送线及所述窑炉主体设置，所述旋转夹紧机构设于所述第二升降搬运机构的动力输出端，所述旋转夹紧机构用于夹紧并旋转所述匣钵，以将所述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上。
  9. 根据权利要求1所述的锂离子电池的正极材料窑炉烧结系统，其特征在于，所述外循环输送线上还设有振平分割区，所述装料区及所述振平分割区沿所述外循环输送线的输送方向依次设置；
    所述正极材料窑炉烧结系统还包括振平切块装置，设于所述振平分割区的上方，所述振平切块装置用于将所述匣钵内的物料进行振平并分割成块。
  10. 一种锂离子电池的正极材料窑炉烧结方法，其特征在于，采用权利要求1至9中任一项所述的锂离子电池的正极材料窑炉烧结系统进行烧结，所述正极材料窑炉烧结方法包括：
    通过所述装钵装置在装料区将待烧结的物料进行装入所述外循环输送线上的匣钵的装填槽内；
    通过所述外循环输送线将装料后的匣钵输送至所述振平切块装置对应的位置；
    通过所述升降组合装置将所述外循环输送线的所述匣钵搬运至所述输送机构上堆叠，以 形成组合叠钵；
    通过所述输送机构将所述叠钵组件从所述输料入口输送至所述窑炉主体内进行烧结，并将烧结后的所述叠钵组件从所述窑炉主体内输送至所述输料出口；
    通过所述卸钵分离装置将所述输送机构上的叠钵组件的匣钵分别进行卸料并搬运至所述外循环输送线上；
    通过将分离卸料后的匣钵通过所述外循环输送线流转回所述装料区。
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