CN218443265U - Tower-type pole piece and positive electrode material separation device - Google Patents
Tower-type pole piece and positive electrode material separation device Download PDFInfo
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- CN218443265U CN218443265U CN202220907110.6U CN202220907110U CN218443265U CN 218443265 U CN218443265 U CN 218443265U CN 202220907110 U CN202220907110 U CN 202220907110U CN 218443265 U CN218443265 U CN 218443265U
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- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/84—Recycling of batteries or fuel cells
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Abstract
The utility model relates to a material separator field indicates a tower pole piece and anodal material separator especially, and whole furnace body can be filled up to the material, by closing the fan through the import, getting into from the feed inlet, whole material removes toward the discharge gate slowly, through preheating zone, high temperature district and cooling space close the fan through the export at last and flow out the material. Continuous industrial production 1 can be realized, and materials can be fed and discharged automatically and smoothly; 2. the uniformity of material heating is ensured; 3. extremely low energy consumption; 4. the method realizes the sufficient separation of the anode material and the aluminum sheet, effectively fully decomposes the adhesive of the anode material, is convenient for industrial production, makes the production process simpler, more convenient and safer, and is convenient for the installation and maintenance of the heating device. In addition, the reaction can be ensured to be in a zero-oxidation environment in the reduction state in the furnace, the separated lithium iron phosphate anode material in the state can be directly reused for producing lithium iron phosphate, and meanwhile, the corrosion of gas generated in heating on the furnace body is effectively prevented.
Description
Technical Field
The utility model relates to a material separator field indicates a tower pole piece and anodal material separator especially.
Background
At present, in the industry, the disassembly, separation and recovery of the lithium battery anode material are generally carried out by directly crushing and then separating out aluminum and the anode material, and the anode material produced by the method has too high aluminum content and is difficult to separate to an allowable standard, so that useful metal elements can be extracted only by wet smelting, and the treatment cost is greatly increased.
The traditional calcining mode has certain limitation on the separation of the pole piece and the anode material.
1) The reverberatory furnace is difficult to heat uniformly and is inconvenient for continuous production;
2) The tunnel kiln can realize uniform heating and continuous production, but has high energy consumption, very troublesome operation during feeding and discharging, and very low treatment efficiency of the tunnel due to lighter pole pieces;
3) The rotary kiln is convenient for continuous production, but because the positive plate has very poor fluidity, serious feeding and discharging problems exist, uniform heating is difficult to achieve in a closed space, the rotary kiln has material at the bottom, the filling rate is only 10-20% normally, and airflow flows upwards, so that the temperature above the furnace chamber is high, the temperature of the bottom close to the furnace body is low, the heating cannot be achieved by a traditional flaming mode, if the electric heating mode is used, the heating is difficult to achieve uniformly, and the installation and maintenance of equipment are very troublesome.
CN110085939A discloses a method for separating and recovering positive plates of waste lithium iron phosphate batteries. The method comprises the steps of firstly cutting waste lithium iron phosphate battery positive plates into loose fragments, putting the fragments into a sintering furnace to be calcined in an inert atmosphere (nitrogen, argon or neon with the purity of more than 99.9%) to obtain calcined waste plates, carrying out vibration screening on the waste plates in a zirconia ball beating state, and obtaining aluminum foils on a vibrating screen and waste lithium iron phosphate powder below the aluminum foils. The lithium iron phosphate powder with the aluminum content of less than 0.02% can be obtained by the method, but high-purity expensive inert gases with the aluminum content of more than 99.9% are required to be used, the inert gases are not easy to recover, the operation cost is very expensive, in addition, because the tightness of equipment and the purity of the inert gases only can ensure that the oxygen content is controlled within 1000PPM, and the trace oxygen can cause partial lithium iron phosphate to be oxidized to change the phase structure, so that the lithium iron phosphate powder recovered by the method cannot be directly reused for producing the lithium iron phosphate battery, and the lithium iron phosphate positive electrode material can be obtained again only after being repaired by a fire method or treated by a wet method.
Disclosure of Invention
In order to solve the problems, the utility model provides a tower type pole piece and anode material separation device, which can realize automatic and smooth feeding and discharging in continuous industrial production; the uniformity of material heating is ensured; extremely low energy consumption; the positive electrode material and the aluminum sheet are fully separated, and the adhesive of the positive electrode material is effectively and fully decomposed.
In order to achieve the purpose, the utility model adopts the technical proposal that: a tower type pole piece and anode material separation device comprises a reaction furnace body, wherein a feed inlet, a preheating zone, a high-temperature zone, a cooling zone and a discharge outlet are sequentially communicated from top to bottom in the reaction furnace body, wherein an inlet air-lock valve used for bringing materials into the reaction furnace body is arranged at the feed inlet, and an outlet air-lock valve used for discharging the materials out of the reaction furnace body is arranged at the discharge outlet; the high-temperature area is internally distributed with a first heating pipe component and a second heating pipe component in a staggered manner from top to bottom, wherein the first heating pipe component and the second heating pipe component are mutually parallel, a plurality of layers of latticed cooling water pipes which are sequentially communicated are arranged in the cooling area from top to bottom, and the bottom of the cooling area is also provided with a shielding gas inlet.
Furthermore, the first heating pipe component comprises a plurality of heating pipes extending along the X-axis direction of the space, and the second heating pipe component comprises a plurality of heating pipes extending along the Y-axis direction of the space.
Furthermore, the position of the outer side wall of the reaction furnace body, which corresponds to the preheating zone, is wrapped by a first heat-insulating layer, the position of the outer side wall of the reaction furnace body, which corresponds to the high-temperature zone, is wrapped by a second heat-insulating layer, and the thickness of the second heat-insulating layer is greater than that of the first heat-insulating layer.
Further, a cooling water input joint is arranged on the latticed cooling water pipe positioned at the lowest part in the cooling area and extends out of the furnace body of the reaction furnace; the latticed cooling water pipe positioned at the uppermost part in the cooling area is provided with a cooling water output joint, and the cooling water output joint extends out of the furnace body of the reaction furnace.
Furthermore, the number of the protective gas inlets is multiple, wherein the protective gas inlets surround the bottom of the cooling zone corresponding to the furnace body of the reaction furnace.
Furthermore, the heating pipe is a ceramic tungsten wire heating pipe.
Further, the cross section of the reaction furnace body is in a cuboid shape, and the whole reaction furnace body is made of 2205 stainless steel.
Further, the first heat-insulating layer and the second heat-insulating layer are made of the same material and are one of polyurethane foam, polystyrene board, EPS, XPS and phenolic foam.
Further, the plurality of first heat pipe assemblies and the plurality of second heat pipe assemblies are spaced at the same interval.
Furthermore, a hydrogen fluoride gas outlet is arranged at the position of the outer side wall of the reaction furnace body, which corresponds to the top of the preheating zone.
The beneficial effects of the utility model reside in that: the whole furnace body can be filled with the material, and the whole material slowly moves towards the discharge port by closing the fan through the inlet and entering from the feed inlet, passes through the preheating zone, the high-temperature zone and the cooling zone, and finally flows out the material by closing the fan through the outlet. Continuous industrial production 1 can be realized, and materials can be fed and discharged automatically and smoothly; 2. the uniformity of material heating is ensured; 3. extremely low energy consumption; 4. the method realizes the sufficient separation of the anode material and the aluminum sheet, effectively and fully decomposes the adhesive of the anode material, is convenient for industrial production, makes the production process more simple, convenient and safe, and is convenient for the installation and maintenance of the heating device. In addition, the reaction can be ensured to be in a zero-oxidation environment in the reduction state in the furnace, the separated lithium iron phosphate anode material in the state can be directly reused for producing lithium iron phosphate, and meanwhile, the corrosion of gas generated in heating on the furnace body is effectively prevented.
Drawings
Fig. 1 is a schematic overall structure diagram of a separation device for a tower-type pole piece and a positive electrode material.
FIG. 2 is a schematic view of the arrangement of heating pipes.
The reference numbers indicate: the system comprises a preheating zone 11, a first heat-insulating layer 111, a hydrogen fluoride gas exhaust port 112, a high-temperature zone 12, a first heating pipe assembly 122, a second heating pipe assembly 121, a second heat-insulating layer 123, a cooling zone 13, a grid-shaped cooling water pipe 131, a cooling water output connector 132, a cooling water input connector 133, a shielding gas inlet 134, an inlet air-lock valve 21 and an outlet air-lock valve 22.
Detailed Description
Referring to fig. 1-2, the present invention relates to a device for separating a tower-type pole piece from a positive electrode material, comprising a reaction furnace body, wherein the interior of the reaction furnace body is sequentially communicated from top to bottom with a feed inlet, a preheating zone 11, a high temperature zone 12, a cooling zone 13, and a discharge outlet, wherein the feed inlet is provided with an inlet air-lock valve 21 for bringing the material into the interior of the reaction furnace body, and the discharge outlet is provided with an outlet air-lock valve 22 for discharging the material out of the reaction furnace body; the first heating pipe component 122 and the second heating pipe component 121 are distributed in the high-temperature region 12 from top to bottom in a staggered manner, wherein the first heating pipe component 122 and the second heating pipe component 121 are parallel to each other, a plurality of layers of grid-shaped cooling water pipes 131 which are sequentially communicated are arranged in the cooling region 13 from top to bottom, and a shielding gas inlet 134 is further arranged at the bottom of the cooling region 13. The first heating pipe assembly 122 includes a plurality of heating pipes extending along the X-axis direction of the space, and the second heating pipe assembly 121 includes a plurality of heating pipes extending along the Y-axis direction of the space.
The heating pipes in this embodiment are preferably tungsten wire sheathed ceramic pipes, wherein the adjacent first heating pipe assembly and the second heating pipe assembly are parallel to each other, the first heating pipe assembly 122 comprises a plurality of heating pipes extending along the direction of the spatial X axis, and the second heating pipe assembly 121 comprises a plurality of heating pipes extending along the direction of the spatial Y axis, i.e. the projection on the horizontal plane is a grid-shaped structure which is perpendicular to each other, so that the arrangement is significant in facilitating the uniform heating of the material and increasing the heating area; in the specific embodiment, the heating pipes are ceramic tungsten wire heating pipes, each heating pipe has 1kw and 9 layers, and each heating pipe has 4 pieces and 36kw;
further, a first heat preservation layer 111 wraps the outer side wall of the reaction furnace body corresponding to the preheating region 11, a second heat preservation layer 123 wraps the outer side wall of the reaction furnace body corresponding to the high-temperature region 12, and the thickness of the second heat preservation layer 123 is larger than that of the first heat preservation layer 111. In order to ensure that the furnace body of the reaction furnace can reach the working temperature required by material processing and avoid heat leakage, a first heat-insulating layer 111 and a second heat-insulating layer 123 are respectively arranged at the corresponding positions of the preheating zone 11 and the high-temperature zone 12, and the thickness of the second heat-insulating layer 123 is increased because a heating pipe is arranged in the high-temperature zone 12, in the specific embodiment, the thickness of the first heat-insulating layer 111 is 100mm, and the thickness of the second heat-insulating layer 123 is 200mm;
further, the grid-shaped cooling water pipe 131 positioned at the lowest position in the cooling area 13 is provided with a cooling water input joint 133, and the cooling water input joint 133 extends out of the furnace body of the reaction furnace; the cooling water pipe 131 in the uppermost grid in the cooling zone 13 is provided with a cooling water output joint 132, and the cooling water output joint 132 extends to the outside of the furnace body of the reaction furnace. In this embodiment, the cooling water in the cooling water pipe enters from the cooling water input joint 133 at the bottom of the cooling area 13, passes through the multi-layer grid cooling water pipe 131 from bottom to top, exchanges heat with the grid cooling water pipe 131 heated by the material, and finally outputs the cooling water after absorbing heat from the cooling water output joint 132; this water route design can avoid the cooling water under the effect of gravity, from top to bottom discharges away fast, and then leads to the heat absorption efficiency variation, and the cooling water need overcome gravity and move from bottom to top in this embodiment, so can increase the heat exchange time of cooling water under a certain extent, so can be for improving refrigerated efficiency, latticed condenser tube 131 can contact the material more fully moreover to the temperature that makes the material reduces the state that can directly get into the shale shaker.
Further, the number of the shielding gas inlets 134 is plural, wherein the shielding gas inlets 134 surround the reactor body corresponding to the bottom position of the cooling zone 13.
Further, the cross section of the reaction furnace body is in a cuboid shape, and the whole material of the reaction furnace body is 2205 stainless steel or hafnium alloy or titanium alloy. In the present embodiment, the whole material of the reaction furnace body is 2205 stainless steel, and the 2205 stainless steel has excellent structural strength and corrosion resistance.
Further, the first insulating layer 111 and the second insulating layer 123 are made of the same material, and are made of one of polyurethane foam, polystyrene board, EPS, XPS, and phenolic foam.
Further, the distances between the first heating pipe assemblies 122 and the second heating pipe assemblies 121 are the same, so that the materials can be uniformly heated.
Wherein the inlet is equipped with an inlet air-lock valve 21 for bringing the material into the reaction furnace body, and the outlet is equipped with an outlet air-lock valve 22 for discharging the material out of the reaction furnace body, in this embodiment, the inlet air-lock valve 21 has a length and width of 500mm and a power of 1.1kw, and the outlet air-lock valve 22 has a length and width of 500mm and a power of 3kw.
In this embodiment, the material will fill the whole furnace body, and the whole material will slowly move to the discharge port by entering from the inlet through the inlet air-lock valve 21, pass through the preheating zone 11, the high temperature zone 12 and the cooling zone 13, and finally flow out through the outlet air-lock valve 22.
In this embodiment, the feeding and discharging are controlled by the outlet air-lock valve 22 and the inlet air-lock valve 21, and the feeding and discharging speed can be adjusted by frequency conversion. The outlet air-lock valve 22 and the inlet air-lock valve 21 can prevent moisture in the air from entering, so that the gas generated in the reaction process can not be changed into corrosive liquid, and the service life of the device is greatly prolonged.
In this embodiment, the outer side wall of the furnace body of the reaction furnace is provided with a hydrogen fluoride gas outlet 112 corresponding to the top of the preheating zone 11.
The above embodiments are only described as preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by the skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (10)
1. A tower type pole piece and anode material separation device is characterized by comprising a reaction furnace body, wherein the interior of the reaction furnace body is sequentially communicated with a feed inlet, a preheating zone, a high-temperature zone, a cooling zone and a discharge outlet from top to bottom; the high-temperature area is internally distributed with a first heating pipe component and a second heating pipe component in a staggered manner from top to bottom, wherein the first heating pipe component and the second heating pipe component are mutually parallel, a plurality of layers of latticed cooling water pipes which are sequentially communicated are arranged in the cooling area from top to bottom, and the bottom of the cooling area is also provided with a shielding gas inlet.
2. The tower-type pole piece and positive pole material separation device according to claim 1, characterized in that: the first heating pipe component comprises a plurality of heating pipes extending along the X-axis direction of the space, and the second heating pipe component comprises a plurality of heating pipes extending along the Y-axis direction of the space.
3. The tower-type pole piece and positive pole material separation device according to claim 1, characterized in that: wherein the position that the lateral wall of the reaction furnace body corresponds to the preheating zone is wrapped with a first heat preservation layer, the position that the lateral wall of the reaction furnace body corresponds to the high-temperature zone is wrapped with a second heat preservation layer, and the thickness of the second heat preservation layer is larger than the first heat preservation layer.
4. The tower-type pole piece and positive pole material separation device according to claim 1, characterized in that: wherein the latticed cooling water pipe positioned at the lowest part in the cooling area is provided with a cooling water input joint which extends out of the furnace body of the reaction furnace; the latticed cooling water pipe positioned at the uppermost part in the cooling area is provided with a cooling water output joint, and the cooling water output joint extends out of the furnace body of the reaction furnace.
5. The tower type pole piece and positive pole material separating device according to claim 1, characterized in that: the number of the protective gas inlets is multiple, wherein the protective gas inlets surround the bottom position of the furnace body of the reaction furnace, which corresponds to the cooling zone.
6. The tower type pole piece and positive pole material separating device according to claim 1, characterized in that: the heating pipe is a ceramic tungsten wire heating pipe.
7. The tower-type pole piece and positive pole material separation device according to claim 1, characterized in that: the cross section of the reaction furnace body is in a cuboid shape, and the whole material of the reaction furnace body is 2205 stainless steel or hafnium alloy or titanium alloy.
8. The tower type pole piece and positive pole material separating device according to claim 3, characterized in that: the first heat-insulating layer and the second heat-insulating layer are made of the same material and are one of polyurethane foam, polystyrene board, EPS, XPS and phenolic foam.
9. The tower type pole piece and positive pole material separating device according to claim 1, characterized in that: the plurality of first heating pipe assemblies and the plurality of second heating pipe assemblies are arranged at the same interval.
10. The tower-type pole piece and positive pole material separation device according to claim 1, characterized in that: the outer side wall of the reaction furnace body is provided with a hydrogen fluoride gas outlet corresponding to the top of the preheating zone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220907110.6U CN218443265U (en) | 2022-04-19 | 2022-04-19 | Tower-type pole piece and positive electrode material separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220907110.6U CN218443265U (en) | 2022-04-19 | 2022-04-19 | Tower-type pole piece and positive electrode material separation device |
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| CN218443265U true CN218443265U (en) | 2023-02-03 |
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| CN202220907110.6U Active CN218443265U (en) | 2022-04-19 | 2022-04-19 | Tower-type pole piece and positive electrode material separation device |
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| CN (1) | CN218443265U (en) |
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- 2022-04-19 CN CN202220907110.6U patent/CN218443265U/en active Active
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