CN109556397A - A kind of roller kilns producing anode material for lithium-ion batteries and its production technology - Google Patents
A kind of roller kilns producing anode material for lithium-ion batteries and its production technology Download PDFInfo
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- CN109556397A CN109556397A CN201811526076.2A CN201811526076A CN109556397A CN 109556397 A CN109556397 A CN 109556397A CN 201811526076 A CN201811526076 A CN 201811526076A CN 109556397 A CN109556397 A CN 109556397A
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- gradual change
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 35
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 239000010405 anode material Substances 0.000 title claims abstract description 30
- 229910001416 lithium ion Inorganic materials 0.000 title claims abstract description 30
- 238000005516 engineering process Methods 0.000 title claims abstract description 14
- 230000008859 change Effects 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000005245 sintering Methods 0.000 claims abstract description 13
- 230000007423 decrease Effects 0.000 claims abstract description 11
- 125000004122 cyclic group Chemical group 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims description 17
- 238000005183 dynamical system Methods 0.000 claims description 17
- 238000010438 heat treatment Methods 0.000 claims description 17
- 238000001816 cooling Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 6
- 238000012216 screening Methods 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 claims description 4
- 230000008450 motivation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- 230000032258 transport Effects 0.000 abstract description 23
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 4
- 230000001788 irregular Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 4
- 239000010406 cathode material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- 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
- F27B9/30—Details, accessories, or equipment peculiar to furnaces of these types
- F27B9/3077—Arrangements for treating electronic components, e.g. semiconductors
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Tunnel Furnaces (AREA)
Abstract
The invention discloses a kind of roller kilns for producing anode material for lithium-ion batteries and its production technologies, including furnace body and roller transport system.Furnace body inlet and exit respectively have one section of roller-way and horizontal plane holding horizontal, and intermediate roller-way gradual change inclination, roller-way rises gradual change inclination and decline gradual change slope cyclic arrangement when gradual change tilts.Using the inclined roller-way of gradual change, irregular inclination when saggar transports in roller kilns can be reduced, when roller-way rises gradual change inclination, saggar is deviated to the drive end of roller stick, when roller-way declines gradual change inclination, saggar is deviated to the driven end of roller stick, it is limited in this way without installing position-limit mechanism additional, saggar transportational process can be effectively prevented to deviate excessive and generate the phenomenon that gets stuck, saggar long-distance transportation, which is effectively ensured, also can normally discharge, the sintering velocity of production process can be improved in production technology when anode material for lithium-ion batteries is using the roller kilns, reduce energy consumption, obtain the anode material for lithium-ion batteries of high quality.
Description
Technical field
The present invention relates to firing fields, particularly, be related to a kind of roller kilns for producing anode material for lithium-ion batteries and its
Production technology.
Background technique
Anode material for lithium-ion batteries production key link first is that sintering.Mostly use roller kilns as agglomerant at present
Tool, because its sintering temperature is uniform, product with stable quality, homogeneity is outstanding, is widely used.But the roller generally used in the world
The length of road kiln is usually no more than 50 meters, limits the charging quantity of roller kilns, leads to that sintering velocity is slow, energy consumption is high.If adopted
With longer roller kilns, sintering velocity can be improved, reduce energy consumption, it is likely that it is excessive that saggar transportational process can be caused to deviate
And be stuck in kiln body can not normal transport discharging, this is because the effect of every roller stick and saggar bottom of roller kilns transportation system
Power is different, and saggar is caused irregularly to deviate, simultaneously as roller-way kiln temperature is higher, it is difficult to install position-limit mechanism additional and be limited
Position, saggar is easy to get stuck during long-distance transportation in roller kilns, once the throughput rate that gets stuck will reduce, production energy consumption
It will will increase.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides that a kind of saggar will not get stuck, throughput rate is high, production energy consumption
The roller kilns and its production technology of low production anode material for lithium-ion batteries.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of roller kilns producing anode material for lithium-ion batteries, including furnace body and roller transport system, roller transport system
System is placed in furnace interior, and the roller transport system includes roller-way and dynamical system, roller-way by multiple roller sticks in vertical direction
The drive end of horizontally arranged composition, roller stick is connect with dynamical system, and roller stick rotates under dynamical system drive, the furnace body entrance
Place respectively has one section of roller-way and horizontal plane holding horizontal with exit, and intermediate roller-way gradual change inclination, roller-way rises when gradual change tilts
Gradual change inclination and decline gradual change slope cyclic arrangement.
Preferably, gradual change inclination be roller stick drive end in same level height, the driven end of roller stick is higher than or low
In driven end, angle is formed with horizontal plane, roller stick angle with horizontal plane is not less than zero degree and no more than ten degree, roller stick and horizontal plane
Maximum angle be five to ten degree.
Preferably, the angle of latter roller stick when rising gradual change inclination and horizontal plane is greater than previous roller stick and horizontal plane
Angle, the decline gradual change inclination are less than the angle of previous roller stick and horizontal plane for the angle of latter roller stick and horizontal plane, are hanging down
Angle was no more than 0. 5 degree and not less than once between the upward adjacent two roller sticks of histogram.
Preferably, the dynamical system includes driving mechanism, chain, sprocket wheel and transmission mechanism, and driving mechanism passes through chain
Item connects sprocket wheel, and sprocket wheel is connect by transmission mechanism with the drive end of roller stick.
Preferably, the transmission mechanism includes gear shaft and gear and lower gear positioned at gear shaft both ends, the chain
Wheel is equipped with sprocket gear, and the drive end of roller stick is equipped with roller stick gear, and the sprocket gear connects lower gear, and gear connects roller
Stick gear.
A kind of anode material for lithium-ion batteries production technology using the roller kilns according to above scheme, the roller-way
The inside of kiln is divided into heating zone, flat-temperature zone and cooling area, when production the following steps are included:
S1: starting roller kilns；
S2: anode material for lithium-ion batteries raw materials for production are uniformly mixed, saggar is placed in；
S3: saggar is placed in roller transport system, is conveyed into the heating zone of roller kilns, with 1-3 DEG C/min rate liter
Temperature keeps 5-10h to 800-1000 DEG C；
S4: saggar enters flat-temperature zone from heating zone, in 800-1000 DEG C of sintering 10-20h；
S5: saggar enters cooling area from flat-temperature zone, is cooled to 25-100 DEG C, keeps 5-10h；
S6: pouring out powder out of saggar, by crushing, screening, removes magnetic, packing, obtains lithium ion anode material product.
The utility model has the advantages that
Furnace body inlet and exit respectively have one section of roller-way and horizontal plane holding horizontal, intermediate roller-way gradual change inclination, gradually
Roller-way rises gradual change inclination and decline gradual change slope cyclic arrangement when becoming inclination.Using the inclined roller-way of gradual change, it is possible to reduce casket
Alms bowl irregular inclination when transporting in roller kilns, when roller-way rises gradual change inclination, saggar is deviated to the drive end of roller stick, roller-way
When declining gradual change inclination, saggar is deviated to the driven end of roller stick, is limited, can be effectively prevented without installing position-limit mechanism additional in this way
Only saggar transportational process deviates excessive and generates and get stuck phenomenon, and saggar long-distance transportation, which is effectively ensured, also normally to discharge, lithium from
Sub- cell positive material uses the production technology when roller kilns that the sintering velocity of production process can be improved, reduce energy consumption, obtains
To the anode material for lithium-ion batteries of high quality.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is overall structure of the present invention；
Fig. 2 is roller transport system structure diagram of the present invention；
Fig. 3 is the structural schematic diagram of transmission mechanism between sprocket wheel and roller stick of the present invention.
Figure label: 1- furnace body, 2- roller transport system, 3- roller-way, 5- roller stick, 51- roller stick gear, 6- driving structure,
7- chain, 8- sprocket wheel, 81- sprocket gear, 9- transmission mechanism, 91- gear shaft, 92- gear, 93- lower gear.
Specific embodiment
Referring to Fig.1, Fig. 2, a kind of roller kilns producing anode material for lithium-ion batteries, including furnace body 1 and roller transport system
System 2, roller transport system 2 is placed in inside furnace body 1, and the roller transport system 2 includes roller-way 3 and dynamical system, and roller-way 3 is by more
Horizontally arranged composition, the drive end of roller stick 5 are connect a roller stick 5 with dynamical system in vertical direction, and roller stick 5 is in dynamical system band
Dynamic lower rotation, 3 gradual change of roller-way that 1 inlet of furnace body and exit respectively have one section of roller-way 3 horizontal with horizontal plane holding, intermediate
Inclination, roller-way 3 rises gradual change inclination and decline gradual change slope cyclic arrangement when gradual change tilts.
1 inlet of furnace body and exit respectively have one section of roller-way 3 and horizontal plane holding horizontal, intermediate 3 gradual change of roller-way inclination,
Roller-way 3 rises gradual change inclination and decline gradual change slope cyclic arrangement when gradual change tilts.Using the inclined roller-way 3 of gradual change, can subtract
Irregular inclination when transporting in roller kilns of few saggar, when roller-way 3 rises gradual change inclination, the drive end of saggar to roller stick 5 is inclined
It moving, when roller-way 3 declines gradual change inclination, saggar is deviated to the driven end of roller stick 5, it is limited in this way without installing position-limit mechanism additional,
Saggar transportational process can be effectively prevented to deviate excessive and generate the phenomenon that gets stuck, saggar long-distance transportation is effectively ensured also can be normal
Discharging, improves throughput rate, reduces production cost.
The gradual change inclination is the drive end of roller stick 5 in same level height, and the driven end of roller stick 5 is higher or lower than driven
End forms angle with horizontal plane, and the height for adjusting driven end can adjust the angle that roller stick 5 and horizontal plane are formed, roller stick 5 with
For horizontal plane angle not less than zero degree and no more than ten degree, the maximum angle of roller stick 5 and horizontal plane is five to ten degree, limits rising and inclines
Tiltedly and when decline inclination, the angle of roller stick 5 and horizontal plane avoids saggar overbank on roller-way 3, in turn ensures that saggar can be with
It can be slided on inclination roller-way 3.
The angle for rising the angle of latter roller stick 5 and horizontal plane when gradual change tilts and being greater than previous roller stick 5 and horizontal plane,
The decline gradual change inclination is less than the angle of previous roller stick 5 and horizontal plane for the angle of latter roller stick 5 and horizontal plane, in Vertical Square
Upward adjacent two roller sticks, 5 angles were no more than 0. 5 degree and not less than once.Roller-way 3 gradually tilts when tilting, and guarantees casket
Alms bowl normal transport on roller-way 3.
As shown in Fig. 2, the dynamical system includes driving mechanism 6, chain 7, sprocket wheel 8 and transmission mechanism 9, driving mechanism
6 connect sprocket wheel 8 by chain 7, and sprocket wheel 8 is connect by transmission mechanism 9 with the drive end of roller stick 5.Driving mechanism 6 is dynamical system
Power is provided, is rotated by chain 7 with movable sprocket 8, sprocket wheel 8 drives roller stick 5 to rotate by transmission mechanism 9.
As shown in figure 3, the transmission mechanism 9 includes gear shaft 91 and gear 92 and lower tooth positioned at 91 both ends of gear shaft
Wheel 93, the sprocket wheel 8 are equipped with sprocket gear 81, and the drive end of roller stick 5 is equipped with roller stick gear 51, and the sprocket gear 81 connects
Lower gear 93, gear 92 connect roller stick gear 51, and wheel gear 81 is engaged with lower gear 93, when sprocket wheel 8 rotates, pass through sprocket
Wheel 81 drives lower gear 93 to rotate, and when lower gear 93 rotates, the gear 92 on same gear shaft 91 is rotated, gear 92
It is engaged with roller stick gear 51, drives roller stick 5 to rotate, realize the conveying of saggar, meanwhile, pass through setting gear 92 and roller stick gear
51 field of conjugate action controls the angle between gear shaft 91 and roller stick 5, to control the angle of roller stick 5 Yu horizontal plane.
A kind of anode material for lithium-ion batteries production technology using the roller kilns according to above scheme, the roller
The inside of road kiln is divided into heating zone, flat-temperature zone and cooling area, when production the following steps are included:
S1: starting roller kilns；
S2: anode material for lithium-ion batteries raw materials for production are uniformly mixed, saggar is placed in；
S3: saggar is placed in roller transport system 2, is conveyed into the heating zone of roller kilns, with 1-3 DEG C/min rate liter
Temperature keeps 5-10h to 800-1000 DEG C；
S4: saggar enters flat-temperature zone from heating zone, in 800-1000 DEG C of sintering 10-20h；
S5: saggar enters cooling area from flat-temperature zone, is cooled to 25-100 DEG C, keeps 5-10h；
S6: pouring out powder out of saggar, by crushing, screening, removes magnetic, packing, obtains lithium ion anode material product.
The production technology can be improved the sintering velocity of anode material for lithium-ion batteries production process, reduce energy consumption, obtain
The anode material for lithium-ion batteries of high quality.
The roller kilns length that the present invention uses be greater than 50 meters, be provided below three different length roller kilns embodiment and its
Production stage.
Roller kilns are divided into heating zone, flat-temperature zone and cooling area.The length sets itself as needed of each warm area roller-way 3.
Example 1:
The roller kilns of use include furnace body 1 and roller transport system 2, and length is 100 meters.
Roller transport system 2 includes roller-way 3, dynamical system.Roller-way 3 is horizontally arranged in vertical direction by multiple roller sticks 5
Composition, roller stick 5 and horizontal plane have the gradient of gradual change, and roller stick 5 and the angle of horizontal plane are not more than 10 degree, adjacent two roller sticks
Angle between 5 is not more than 1 degree.Since 1 entrance of furnace body, roller-way 3 is kept for 5 meters of level；Then, roller-way rises gradual change inclination,
Until the angle of roller stick 5 and horizontal plane is 5 degree；Then, roller-way decline gradual change inclination, until the angle of roller stick 5 and horizontal plane is 5
Degree；Roller-way 3 so recycles, until exporting 5 meters from furnace body 1；Roller-way 3 keeps 5 meters of level to furnace body 1 to export.
3 gradual change angled manner of roller-way are as follows: the drive end of roller stick 5 is higher than or low in same level height, the driven end of roller stick 5
In driven end, angle is formed with horizontal plane, the height for adjusting driven end can adjust the angle that roller stick 5 and horizontal plane are formed,
Angle is 0.5 degree between vertically adjacent two roller sticks 5.
Dynamical system includes the transmission mechanism between driving mechanism 6, chain 7, sprocket wheel 8, each sprocket wheel 8 and every roller stick 5
9.Transmission mechanism 9 between each sprocket wheel 8 and every roller stick 5, including the sprocket gear 81 coaxial with sprocket wheel 8, both ends band respectively
There are the gear shaft of lower gear 93 and gear 92, the roller stick gear 51 coaxial with roller stick 5.Sprocket gear 81 is nibbled with lower gear 93
It closes, gear 92 is engaged with roller stick gear 51.By be arranged gear 92 and roller stick gear 51 the field of conjugate action, control gear shaft with
Angle between roller stick 5, to control the gradient of roller stick 5.
Production technology specifically includes:
Step 1: starting roller kilns；
Step 2: tertiary cathode material raw materials for production being uniformly mixed, saggar is placed in；
Step 3: saggar being placed in roller transport system, the heating zone of roller kilns is conveyed into, with 1 DEG C/min rate liter
Temperature keeps 5h to 800 DEG C；
Step 4: saggar enters flat-temperature zone from heating zone, in 800 DEG C of sintering 10h；
Step 5: saggar enters cooling area from flat-temperature zone, is cooled to 25 DEG C, keeps 5h；
Step 6: pouring out powder out of saggar, by crushing, screening, remove magnetic, packing, obtain lithium ion anode material production
Product.
Example 2:
The roller kilns of use include furnace body 1 and roller transport system 2, and length is 150 meters.
Roller transport system 2 includes roller-way 3, dynamical system.Roller-way 3 is horizontally arranged in vertical direction by multiple roller sticks 5
Composition, roller stick 5 and horizontal plane have the gradient of gradual change, and roller stick 5 and the angle of horizontal plane are not more than 10 degree, adjacent two roller sticks
Angle between 5 is not more than 1 degree.Since 1 entrance of furnace body, roller-way 3 is kept for 7.5 meters of level；Then, roller-way 3 rises gradual change and inclines
Tiltedly, until the angle of roller stick 5 and horizontal plane is 7.5 degree；Then, roller-way 3 declines gradual change inclination, until roller stick 5 and horizontal plane
Angle is 7.5 degree；Roller-way 3 so recycles, until exporting 7.5 meters from furnace body 1；Roller-way 3 keeps 7.5 meters of level to furnace body 1 to export.
3 gradual change angled manner of roller-way are as follows: the drive end of roller stick 5 is higher than or low in same level height, the driven end of roller stick 5
In driven end, angle is formed with horizontal plane, the height for adjusting driven end can adjust the angle that roller stick 5 and horizontal plane are formed,
Angle is 0.75 degree between vertically adjacent two roller sticks 5.
Dynamical system includes the transmission mechanism between driving mechanism 6, chain 7, sprocket wheel 8, each sprocket wheel 8 and every roller stick 5
9.Transmission mechanism 9 between each sprocket wheel 8 and every roller stick 5, including the sprocket gear 81 coaxial with sprocket wheel 8, both ends band respectively
There are the gear shaft of lower gear 93 and gear 92, the roller stick gear 51 coaxial with roller stick 5.Sprocket gear 81 is nibbled with lower gear 93
It closes, gear 92 is engaged with roller stick gear 51.By be arranged gear 92 and roller stick gear 51 the field of conjugate action, control gear shaft with
Angle between roller stick 5, to control the gradient of roller stick 5.
Production technology specifically includes:
Step 1: starting roller kilns；
Step 2: tertiary cathode material raw materials for production being uniformly mixed, saggar is placed in；
Step 3: saggar being placed in roller transport system, the heating zone of roller kilns is conveyed into, with 2 DEG C/min rate liter
Temperature keeps 7.5h to 900 DEG C；
Step 4: saggar enters flat-temperature zone from heating zone, in 900 DEG C of sintering 15h；
Step 5: saggar enters cooling area from flat-temperature zone, is cooled to 50 DEG C, keeps 7.5h；
Step 6: pouring out powder out of saggar, by crushing, screening, remove magnetic, packing, obtain lithium ion anode material production
Product.
Example 3:
The roller kilns of use include furnace body 1 and roller transport system 2, and length is 200 meters.
Roller transport system 2 includes roller-way 3, dynamical system.Roller-way 3 is horizontally arranged in vertical direction by multiple roller sticks 5
Composition, roller stick 5 and horizontal plane have the gradient of gradual change, and roller stick 5 and the angle of horizontal plane are not more than 10 degree, adjacent two roller sticks
Angle between 5 is not more than 1 degree.Since 1 entrance of furnace body, roller-way 3 is kept for 10 meters of level；Then, roller-way 3 rises gradual change and inclines
Tiltedly, until the angle of roller stick 5 and horizontal plane is 10 degree；Then, roller-way 3 declines gradual change inclination, until the folder of roller stick 5 and horizontal plane
Angle is 10 degree；Roller-way 3 so recycles, until exporting 10 meters from furnace body 1；Roller-way 3 keeps 10 meters of level to furnace body 1 to export.
3 gradual change angled manner of roller-way are as follows: the drive end of roller stick 5 is higher than or low in same level height, the driven end of roller stick 5
In driven end, angle is formed with horizontal plane, the height for adjusting driven end can adjust the angle that roller stick 5 and horizontal plane are formed,
Angle is 1 degree between vertically adjacent two roller sticks 5.
Dynamical system includes the transmission mechanism between driving mechanism 6, chain 7, sprocket wheel 8, each sprocket wheel 8 and every roller stick 5
9.Transmission mechanism 9 between each sprocket wheel 8 and every roller stick 5, including the sprocket gear 81 coaxial with sprocket wheel 8, both ends band respectively
There are the gear shaft of lower gear 93 and gear 92, the roller stick gear 51 coaxial with roller stick 5.Sprocket gear 81 is nibbled with lower gear 93
It closes, gear 92 is engaged with roller stick gear 51.By be arranged gear 92 and roller stick gear 51 the field of conjugate action, control gear shaft with
Angle between roller stick 5, to control the gradient of roller stick 5.
Production technology specifically includes:
Step 1: starting roller kilns；
Step 2: tertiary cathode material raw materials for production being uniformly mixed, saggar is placed in；
Step 3: saggar being placed in roller transport system, the heating zone of roller kilns is conveyed into, with 3 DEG C/min rate liter
Temperature keeps 10h to 1000 DEG C；
Step 4: saggar enters flat-temperature zone from heating zone, in 1000 DEG C of sintering 20h；
Step 5: saggar enters cooling area from flat-temperature zone, is cooled to 100 DEG C, keeps 10h；
Step 6: pouring out powder out of saggar, by crushing, screening, remove magnetic, packing, obtain lithium ion anode material production
Product.
The above only better embodiment of the invention, but the present invention is not limited to above-described embodiments, if its with
Any same or similar means reach technical effect of the invention, should all fall under the scope of the present invention.
Claims (6)
1. a kind of roller kilns for producing anode material for lithium-ion batteries, including furnace body (1) and roller transport system (2), roller-way fortune
Defeated system (2) is placed in furnace body (1) inside, and the roller transport system (2) includes roller-way (3) and dynamical system, and roller-way (3) is by more
Horizontally arranged composition, the drive end of roller stick (5) are connect a roller stick (5) with dynamical system in vertical direction, and roller stick (5) is in power
System drives lower rotation, it is characterised in that: furnace body (1) inlet and exit respectively have one section of roller-way (3) and horizontal plane to protect
Water holding is flat, and intermediate roller-way (3) gradual change inclination, roller-way (3) rises gradual change inclination and decline gradual change slope cyclic when gradual change tilts
Arrangement.
2. a kind of roller kilns for producing anode material for lithium-ion batteries according to claim 1, it is characterised in that: it is described gradually
Becoming inclination is the drive end of roller stick (5) in same level height, and the driven end of roller stick (5) is higher or lower than driven end, with level
Face forms angle, and not less than zero degree and no more than ten degree, roller stick (5) and the maximum of horizontal plane press from both sides roller stick (5) angle with horizontal plane
Angle is five to ten degree.
3. a kind of roller kilns for producing anode material for lithium-ion batteries according to claim 2, it is characterised in that: on described
The angle of latter roller stick (5) and horizontal plane is greater than the angle of previous roller stick (5) and horizontal plane when rising gradual change inclination, and the decline is gradually
Become the angle that inclination is less than previous roller stick (5) and horizontal plane into the angle of latter roller stick (5) and horizontal plane, in vertical direction phase
Angle was no more than 0. 5 degree and not less than once between adjacent two roller sticks (5).
4. a kind of roller kilns for producing anode material for lithium-ion batteries according to claim 1, it is characterised in that: described dynamic
Force system includes driving mechanism (6), chain (7), sprocket wheel (8) and transmission mechanism (9), and driving mechanism (6) is connected by chain (7)
Chain link wheel (8), sprocket wheel (8) are connect by transmission mechanism (9) with the drive end of roller stick (5).
5. a kind of roller kilns for producing anode material for lithium-ion batteries according to claim 4, it is characterised in that: the biography
Motivation structure (9) includes gear shaft (91) and the gear (92) and lower gear (93) for being located at gear shaft (91) both ends, the sprocket wheel
(8) sprocket gear (81) are equipped with, the drive end of roller stick (5) is equipped with roller stick gear (51), under sprocket gear (81) connection
Gear (93), gear (92) connect roller stick gear (51).
6. a kind of anode material for lithium-ion batteries production technology using roller kilns according to claim 1, feature exist
Be divided into heating zone, flat-temperature zone and cooling area in: the inside of the roller kilns, when production the following steps are included:
S1: starting roller kilns；
S2: anode material for lithium-ion batteries raw materials for production are uniformly mixed, saggar is placed in；
S3: saggar being placed in roller transport system (2), the heating zone of roller kilns is conveyed into, with the heating of 1-3 DEG C/min rate
To 800-1000 DEG C, 5-10h is kept；
S4: saggar enters flat-temperature zone from heating zone, in 800-1000 DEG C of sintering 10-20h；
S5: saggar enters cooling area from flat-temperature zone, is cooled to 25-100 DEG C, keeps 5-10h；
S6: pouring out powder out of saggar, by crushing, screening, removes magnetic, packing, obtains lithium ion anode material product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526076.2A CN109556397B (en) | 2018-12-13 | 2018-12-13 | Roller kiln for producing lithium ion battery anode material and production process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811526076.2A CN109556397B (en) | 2018-12-13 | 2018-12-13 | Roller kiln for producing lithium ion battery anode material and production process thereof |
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| Publication Number | Publication Date |
|---|---|
| CN109556397A true CN109556397A (en) | 2019-04-02 |
| CN109556397B CN109556397B (en) | 2024-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811526076.2A Active CN109556397B (en) | 2018-12-13 | 2018-12-13 | Roller kiln for producing lithium ion battery anode material and production process thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113686146A (en) * | 2021-08-26 | 2021-11-23 | 江苏润鸿高温窑具有限公司 | Gas sintering lithium battery anode material roller kiln system |
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| CN113686146A (en) * | 2021-08-26 | 2021-11-23 | 江苏润鸿高温窑具有限公司 | Gas sintering lithium battery anode material roller kiln system |
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| CN109556397B (en) | 2024-05-10 |
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