CN218872122U - Negative electrode material granulation and pre-carbonization integrated production line - Google Patents
Negative electrode material granulation and pre-carbonization integrated production line Download PDFInfo
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- CN218872122U CN218872122U CN202223150636.3U CN202223150636U CN218872122U CN 218872122 U CN218872122 U CN 218872122U CN 202223150636 U CN202223150636 U CN 202223150636U CN 218872122 U CN218872122 U CN 218872122U
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Abstract
The utility model provides an integrated production line of negative pole material granulation carbonization in advance, including throwing material station, first vacuum conveyer, blendor, the feed bin of weighing, low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove, cooling cauldron, the ejection of compact feed bin of weighing and break up the trimmer, low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove and cooling cauldron rotate sealed intercommunication setting end to end in proper order, the utility model provides a simple structure adopts the rotary kiln to accomplish granulation and carbonization in advance, and the barrel of low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove rotates, drives inside material and then rotates, and the barrel heats outward, accomplishes granulation and carbonization process in advance, has realized the production of negative pole material granulation, carbonization integration, has realized the automation of equipment, not only can save equipment input, saves simultaneously, relevant auxiliary facilities investment such as occupation of land, distribution, reduces manufacturing cost, still by a wide margin improvement production efficiency, realizes the maximize utilization of the energy, realizes the production energy maximize simultaneously.
Description
Technical Field
The utility model belongs to the technical field of the cathode material production line, more specifically says, in particular to cathode material granulation carbonization integration production line in advance.
Background
The cathode material is the most mature material matched with the four main materials of the new energy automobile power battery and is one of the main factors influencing the energy density of the lithium battery, and the cost of the cathode material in the lithium battery accounts for 10-15%. The ideal lithium ion battery should have the performances of low potential, stable structure, small potential variation amplitude, good lithium ion deintercalation reversibility, good conductivity, good interface stability, low interface alternating current impedance and the like so as to meet the requirements of the lithium ion battery on higher energy density and charge-discharge function. The most central link in the process of manufacturing the lithium battery cathode material is the processes of granulation, coating and carbonization.
Based on the above, the present inventors found that the following problems exist: currently, the main negative electrode material granulation and pre-carbonization processes in the market are separately carried out, namely, the material is cooled to normal temperature after being granulated at 650 ℃; then changing the furnace type, heating to 1000 ℃, completing pre-carbonization, and re-cooling, wherein the heat loss of the traditional granulation and pre-carbonization is large, the energy consumption is high, and on the key procedures of granulation and carbonization, a traditional reaction kettle is still adopted, the traditional reaction kettle is a kettle body which is still in motion, an internal stirring device stirs materials, an external kettle is electrically heated, and the like, so that the stirring and heating processes of the materials, namely the granulation process, are completed; then cooling, entering a roller kiln or a tunnel kiln and the like to finish the pre-carbonization process, wherein granulation and carbonization are gradually and separately carried out by the traditional equipment, the process is complex, the resource waste is serious, and the granulation and pre-carbonization are both in an intermittent feeding mode, namely, a kettle material is filled, heated to 650 ℃, and discharged after the granulation is finished; then, the next kettle material is added, and the intermittent feeding and discharging is adopted, so that the defects of high energy consumption, low capacity, serious energy waste and the like are realized.
In view of the above, research and improvement are made on the existing structure and defects, and an integrated production line for granulation and pre-carbonization of the negative electrode material is provided, so as to achieve the purpose of higher practical value.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides an integrated production line for granulating and pre-carbonizing cathode materials, which is used for solving the problem that the current procedures of granulating and pre-carbonizing cathode materials are separately carried out, namely, the materials are cooled to normal temperature after being granulated at 650 ℃; then changing the furnace type, heating to 1000 ℃, completing pre-carbonization, and re-cooling, wherein the heat loss of the traditional granulation and pre-carbonization is large, the energy consumption is high, and on the key procedures of granulation and carbonization, a traditional reaction kettle is still adopted, the traditional reaction kettle is a kettle body which is still in motion, an internal stirring device stirs materials, an external kettle is electrically heated, and the like, so that the stirring and heating processes of the materials, namely the granulation process, are completed; then cooling, entering a roller kiln or a tunnel kiln and the like to finish the pre-carbonization process, wherein granulation and carbonization are gradually and separately carried out by the traditional equipment, the process is complex, the resource waste is serious, and the granulation and pre-carbonization are both in an intermittent feeding mode, namely, a kettle material is filled, heated to 650 ℃, and discharged after the granulation is finished; then adding the next kettle material, and feeding and discharging materials intermittently, which has the defects of high energy consumption, small capacity, serious energy waste and the like.
The utility model discloses the purpose and the efficiency of negative electrode material granulation carbonization integration production line in advance are reached by following concrete technological means:
the utility model provides an integrated production line of cathode material granulation precarbonization, includes throws material station, first vacuum conveyer, blendor, weighs feed bin, low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove, cooling cauldron, the ejection of compact bin of weighing and breaks up the trimmer, low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove and cooling cauldron rotate sealed intercommunication setting end to end in proper order, the feed bin of weighing communicates with each other with the low temperature cylinder stove through second vacuum conveyer and sets up, the front end of low temperature cylinder stove is equipped with the feed end, the discharge gate of second vacuum conveyer rotates sealed intercommunication with the feed end of low temperature cylinder stove.
Furthermore, the discharge port of the feeding station is communicated with a first vacuum conveyor, the discharge port of the first vacuum conveyor is communicated with the feed inlet of the mixer, and the weighing bin is located below the mixer.
Furthermore, the discharge hole of the cooling kettle is communicated with the feed inlet of the discharge weighing bin through a third vacuum conveyor, and the third vacuum conveyor is positioned above the feed inlet of the scattering and shaping machine.
Further, the temperature of the low-temperature roller furnace is set to be 0-350 ℃, the temperature of the medium-temperature roller furnace is set to be 350-650 ℃, and the temperature of the high-temperature roller furnace is set to be 650-1000 ℃.
Furthermore, the low-temperature roller furnace, the medium-temperature roller furnace and the high-temperature roller furnace are respectively provided with a driving mechanism, and each driving mechanism is used for driving the corresponding low-temperature roller furnace, medium-temperature roller furnace and high-temperature roller furnace to rotate around the central axis direction.
Furthermore, the device also comprises electric heating devices arranged on the low-temperature roller furnace, the medium-temperature roller furnace and the high-temperature roller furnace, wherein the electric heating devices are one or a plurality of combinations of electric heating wire heating devices, microwave heating devices, electromagnetic heating devices and plasma heating devices.
Furthermore, the device also comprises a plurality of temperature sensors and pressure sensors which are arranged on the low-temperature roller furnace, the medium-temperature roller furnace and the high-temperature roller furnace.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the utility model has the advantages of simple structure, adopt the rotary furnace to accomplish granulation and precarbonization, the barrel of low temperature cylinder stove, medium temperature cylinder stove, high temperature cylinder stove rotates, drive inside material and follow and rotate, the barrel is external to be heated, accomplish granulation and precarbonization process, the production of cathode material granulation, carbonization integration has been realized, the automation of equipment has been realized, not only can save equipment input, simultaneously save occupation of land, relevant auxiliary facilities investment such as distribution, reduce manufacturing cost, still by a wide margin improvement production efficiency, realize the maximize utilization of the energy, realize the production energy maximize simultaneously;
2. on granulation and the key process of pre-carbonization, abandon traditional reation kettle, adopt the rotary kiln, simultaneously, low temperature cylinder furnace, medium temperature cylinder furnace, high temperature cylinder furnace can realize in succession the business turn over material, easily realize that the granulation is carbonized in advance and is produced the line, and simultaneously, the processing temperature is more controllable, and the product is heated evenly, and the uniformity is good, and the handling capacity increases moreover, and the single line productivity promotes by a wide margin, has further improved production efficiency.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic view of the low-temperature roller furnace, the medium-temperature roller furnace and the high-temperature roller furnace of the present invention.
Fig. 3 is a schematic view of the front view structure of the scattering and shaping machine of the present invention.
In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:
1. a feeding station; 2. a first vacuum conveyor; 3. a mixer; 4. a weighing bin; 5. a low temperature roller furnace; 6. a medium-temperature roller furnace; 7. a high temperature roller furnace; 8. cooling the kettle; 9. discharging and weighing storage bins; 10. a scattering and shaping machine; 11. a second vacuum conveyor; 12. a third vacuum conveyor; 13. a drive mechanism; 14. a feeding end; 15. a discharge end; 16. an electric heating device.
Detailed Description
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example (b):
as shown in figures 1 to 3:
the utility model provides an anode material granulation carbonization integration production line in advance, including throwing material station 1, first vacuum conveyor 2, blendor 3, the feed bin 4 of weighing, low temperature cylinder stove 5, medium temperature cylinder stove 6, high temperature cylinder stove 7, cooling kettle 8, the ejection of compact is weighed feed bin 9 and is broken up trimmer 10, low temperature cylinder stove 5, medium temperature cylinder stove 6, high temperature cylinder stove 7 and cooling kettle 8 rotate sealed intercommunication setting from beginning to end in proper order, it sets up with low temperature cylinder stove 5 through second vacuum conveyor 11 to weigh feed bin 4, the front end of low temperature cylinder stove 5 is equipped with feed end 14, the discharge gate of second vacuum conveyor 11 rotates sealed intercommunication with low temperature cylinder stove 5's feed end 14.
In other embodiments, the discharge port of the feeding station 1 is communicated with the first vacuum conveyor 2, the discharge port of the first vacuum conveyor 2 is communicated with the feed port of the mixer 3, the weighing bin 4 is located below the mixer 3, the material is stored in the feeding station 1 and conveyed to the interior of the mixer 3 by the first vacuum conveyor 2 for mixing, and the mixed material enters the weighing bin 4 for weighing and discharging after being mixed.
In other embodiments, the discharge port of the cooling kettle 8 is communicated with the feed port of the discharge weighing bin 9 through a third vacuum conveyor 12, the third vacuum conveyor 12 is located above the feed port of the scattering and shaping machine 10, the cooling kettle 8 is arranged for cooling, and the materials are conveyed to the inside of the scattering and shaping machine 10 through the third vacuum conveyor 12 for scattering and shaping.
In other embodiments, the temperature of the low-temperature roller furnace 5 is set to be 0-350 ℃, the temperature of the medium-temperature roller furnace 6 is set to be 350-650 ℃, the temperature of the high-temperature roller furnace 7 is set to be 650-1000 ℃, the low-temperature roller furnace 5 heats the materials in the cylinder to 350 ℃ for continuous granulation, the materials in the cylinder flow to the medium-temperature roller furnace 6 through the low Wen Guntong furnace 5 in a rotating mode to continue heating, the materials in the cylinder are heated to 650 ℃ by the medium-temperature roller furnace 6 for further granulation, the materials flow to the high-temperature roller furnace 7 through the medium-temperature roller furnace 6 in a rotating mode, the materials in the cylinder are heated to 1000 ℃ by the high-temperature roller furnace 7 to continue flowing forwards in a rotating mode until pre-carbonization is completed, the materials flow to the cooling kettle 8 to complete cooling and subsequent scattering and shaping, the production of granulation and carbonization integration of negative electrode materials is realized, the automation of equipment is realized, the equipment investment can be saved, the equipment investment is saved, and the floor area and the related auxiliary equipment investment and the production cost is reduced.
In other embodiments, all be provided with actuating mechanism 13 on low temperature cylinder stove 5, medium temperature cylinder stove 6 and the high temperature cylinder stove 7, every actuating mechanism 13 is used for driving corresponding low temperature cylinder stove 5, medium temperature cylinder stove 6 and high temperature cylinder stove 7 are rotatory around the axis direction, drive low temperature cylinder stove 5, the inside material of medium temperature cylinder stove 6 and high temperature cylinder stove 7 follows to rotate, low temperature cylinder stove 5, medium temperature cylinder stove 6 and high temperature cylinder stove 7 external heating, accomplish granulation and carbonization process in advance, cathode material granulation has been realized, the production of carbonization integration, the automation of equipment has been realized.
In other embodiments, the system further comprises an electric heating device 16 arranged on the low-temperature roller furnace 5, the medium-temperature roller furnace 6 and the high-temperature roller furnace 7, the electric heating device 16 is arranged to realize the control of the temperature in the low-temperature roller furnace 5, the medium-temperature roller furnace 6 and the high-temperature roller furnace 7 according to corresponding process requirements, the treatment of materials is facilitated, the process requirements are met, the electric heating device 16 is one or more combinations of an electric heating wire heating device, a microwave heating device, an electromagnetic heating device and a plasma heating device, and according to the process requirements, various electric heating devices 16 can be combined at will or used independently.
In other embodiments, the system further comprises a plurality of temperature sensors and pressure sensors arranged on the low-temperature roller furnace 5, the medium-temperature roller furnace 6 and the high-temperature roller furnace 7, and the temperature and pressure parameters of the inner parts of the low-temperature roller furnace 5, the medium-temperature roller furnace 6 and the high-temperature roller furnace 7 along the axial direction of each radial end face are monitored, so that the accuracy of temperature and pressure control in the low-temperature roller furnace 5, the medium-temperature roller furnace 6 and the high-temperature roller furnace 7 is improved, and the processing of materials is facilitated.
The specific use mode and function of the embodiment are as follows:
the utility model discloses in, this production line mainly used produces the cathode material, and the process of main completion includes: feeding, mixing, granulating, pre-carbonizing, cooling, scattering and shaping, storing materials through a feeding station 1, conveying the materials to the interior of a mixer 3 by using a first vacuum conveyor 2 for mixing, weighing and discharging the materials in a weighing bin 4 after the mixing is finished, conveying the materials to the interior of a feeding end 14 of a low-temperature roller furnace 5 by using a second vacuum conveyor 11, rotating and heating a driving mechanism 13 and an electric heating device 16 as a low-temperature roller furnace 5, a medium-temperature roller furnace 6 and a high-temperature roller furnace 7 at the same time, heating the materials in the cylinder to 350 ℃ by using the low-temperature roller furnace 5 for continuous granulation, rotating and flowing the materials in the cylinder to the medium-temperature roller furnace 6 by using a low Wen Guntong furnace 5 for continuous heating, heating the materials in the cylinder to 650 ℃ by using the medium-temperature roller furnace 6 for further granulation, and rotating and flowing the materials in the high-temperature roller furnace 7 by using the medium-temperature roller furnace 6, the high-temperature roller furnace 7 heats materials in the roller to 1000 ℃, the materials continuously rotate and flow forwards when reaching 1000 ℃, the materials flow into the cooling kettle 8 to be cooled, the materials are conveyed to the inside of the scattering and shaping machine 10 through the third vacuum conveyor 12 to be scattered and shaped, the production of integration of negative electrode material granulation and carbonization is realized, the automation of equipment is realized, the equipment investment can be saved, meanwhile, the investment of related auxiliary facilities such as occupied land and power distribution is saved, the production cost is reduced, continuous feeding, continuous discharging, continuous granulation, continuous precarbonization and continuous scattering are realized, the whole process has continuity, the production efficiency is greatly improved, the maximum utilization of energy is realized, and the maximization of the production capacity is realized.
It should be noted that the feeding station 1, the first vacuum conveyor 2, the mixer 3, the weighing bin 4, the low-temperature roller furnace 5, the medium-temperature roller furnace 6, the high-temperature roller furnace 7, the cooling kettle 8, the discharging and weighing bin 9, the scattering and shaping machine 10, and the driving mechanism 13 are devices or equipment existing in the prior art, or devices or equipment capable of being realized in the prior art, and the power supply, the specific composition and the principle thereof are clear to those skilled in the art, and are common knowledge in the art, and therefore, detailed description is omitted.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (7)
1. The utility model provides an integrated production line of negative pole material granulation carbonization in advance which characterized in that: including throwing material station (1), first vacuum conveyor (2), blendor (3), weigh feed bin (4), low temperature cylinder stove (5), medium temperature cylinder stove (6), high temperature cylinder stove (7), cooling kettle (8), the ejection of compact and weigh feed bin (9) and break up trimmer (10), low temperature cylinder stove (5), medium temperature cylinder stove (6), high temperature cylinder stove (7) and cooling kettle (8) rotate sealed intercommunication setting end to end in proper order, it communicates with each other with low temperature cylinder stove (5) through second vacuum conveyor (11) to weigh feed bin (4), the front end of low temperature cylinder stove (5) is equipped with feed end (14), the discharge gate of second vacuum conveyor (11) and feed end (14) of low temperature cylinder stove (5) rotate sealed intercommunication.
2. The granulating and pre-carbonizing integrated production line for the anode material as claimed in claim 1, characterized in that: the discharge port of the feeding station (1) is communicated with the first vacuum conveyor (2), the discharge port of the first vacuum conveyor (2) is communicated with the feed inlet of the mixer (3), and the weighing bin (4) is located below the mixer (3).
3. The negative electrode material granulation and pre-carbonization integrated production line as claimed in claim 1, wherein: the discharge hole of the cooling kettle (8) is communicated with the feed inlet of the discharge weighing bin (9) through a third vacuum conveyor (12), and the third vacuum conveyor (12) is positioned above the feed inlet of the scattering and shaping machine (10).
4. The negative electrode material granulation and pre-carbonization integrated production line as claimed in claim 1, wherein: the temperature of the low-temperature roller furnace (5) is set to be 0-350 ℃, the temperature of the medium-temperature roller furnace (6) is set to be 350-650 ℃, and the temperature of the high-temperature roller furnace (7) is set to be 650-1000 ℃.
5. The negative electrode material granulation and pre-carbonization integrated production line as claimed in claim 1, wherein: and driving mechanisms (13) are arranged on the low-temperature roller furnace (5), the medium-temperature roller furnace (6) and the high-temperature roller furnace (7), and each driving mechanism (13) is used for driving the corresponding low-temperature roller furnace (5), the medium-temperature roller furnace (6) and the high-temperature roller furnace (7) to rotate around the central axis direction.
6. The negative electrode material granulation and pre-carbonization integrated production line as claimed in claim 1, wherein: the electric heating device (16) is arranged on the low-temperature roller furnace (5), the medium-temperature roller furnace (6) and the high-temperature roller furnace (7), and the electric heating device (16) is one or a plurality of combinations of an electric heating wire heating device, a microwave heating device, an electromagnetic heating device and a plasma heating device.
7. The granulating and pre-carbonizing integrated production line for the anode material as claimed in claim 1, characterized in that: the device also comprises a plurality of temperature sensors and pressure sensors which are arranged on the low-temperature roller furnace (5), the medium-temperature roller furnace (6) and the high-temperature roller furnace (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223150636.3U CN218872122U (en) | 2022-11-25 | 2022-11-25 | Negative electrode material granulation and pre-carbonization integrated production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223150636.3U CN218872122U (en) | 2022-11-25 | 2022-11-25 | Negative electrode material granulation and pre-carbonization integrated production line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218872122U true CN218872122U (en) | 2023-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223150636.3U Active CN218872122U (en) | 2022-11-25 | 2022-11-25 | Negative electrode material granulation and pre-carbonization integrated production line |
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| Country | Link |
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| CN (1) | CN218872122U (en) |
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2022
- 2022-11-25 CN CN202223150636.3U patent/CN218872122U/en active Active
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