CN217250339U - Coating drying device - Google Patents
Coating drying device Download PDFInfo
- Publication number
- CN217250339U CN217250339U CN202220969043.0U CN202220969043U CN217250339U CN 217250339 U CN217250339 U CN 217250339U CN 202220969043 U CN202220969043 U CN 202220969043U CN 217250339 U CN217250339 U CN 217250339U
- Authority
- CN
- China
- Prior art keywords
- heating
- coating
- drying device
- drying
- heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model provides a coating and drying device, which comprises a coating device and a drying device; the drying device comprises an oven; a plurality of independent contact heating boxes are arranged inside the oven; the contact heating box is used for heat conduction type heating. The utility model provides a coating drying device, on the basis of traditional heat convection formula and thermal radiation formula heating, adopted the drying device who takes heat conduction formula heating as the main for temperature control is more accurate, is of value to energy saving and emission reduction, just drying device can provide different heating temperature for the pole piece of different stoving degrees, coating drying device is more reasonable utilizes heat energy.
Description
Technical Field
The utility model belongs to the technical field of lithium ion battery makes, a coating drying device is related to.
Background
In the manufacturing process of the pole piece of the lithium ion battery, the slurry is required to be uniformly coated on an aluminum foil or a copper foil, and the solvent in the slurry is volatilized through continuous high-temperature baking to form a finished product of the battery pole piece solidified on a base material. The drying process is crucial, the drying speed directly influences the operation efficiency of the coating equipment, and the drying consistency is related to the consistency of the battery pole piece. Therefore, the high efficiency and uniformity of the drying mode are one of the bottlenecks that restrict the productivity and performance of the lithium ion battery pole piece.
The quality of the uniformity, consistency, adhesive diffusivity, surface density stability and the like of coating and drying is directly related to the quality of the battery. The temperature and the wind speed in the coating and drying process are difficult to be accurately controlled, and the utilization rate of heat energy is low.
In order to solve the problem of heat transfer efficiency, the drying oven can be lengthened, the drying efficiency is improved, and therefore the running speed of the equipment is increased. The lengthening of the oven brings about a series of negative effects, such as: the equipment cost is high, the occupied space is large, the energy consumption of the equipment is high, the operation time of the pole piece in the oven is long, the pole piece is heated and stretched for a long time, the pole piece is deformed and wrinkled, and the performance precision of a coating product is reduced.
However, generally, the heating method of thermal convection and thermal radiation is adopted, so that the drying efficiency is low, the baking is uneven, and in the drying process, due to poor control of wind speed and temperature, the adverse effects such as thinning width variation, thinning thickness variation, cracks on two side edges and thinning areas are easily caused.
CN 210965780U discloses coating drying device is used in processing of distributed lithium cell, including the frame, one side of frame is equipped with the feed inlet, and the opposite side is equipped with the discharge gate, is equipped with the deflector roll in the frame, and be close to feed inlet one side and be equipped with the decurrent arc hot plate of opening, the both ends of arc hot plate extend certain length to both sides, the middle part of arc hot plate is equipped with the rectangular form opening of a plurality of transversal arrangement, the inside fan that has held of arc mouth of arc hot plate.
The utility model discloses a fan I has been held to the inside of the arc mouth of arc hot plate for steam forms a thermal cycle from bottom to top in the box, upwards leads out the most high heat of arc hot plate bottom through long banding opening through thermal cycle, conducts to leveling roof department at arc roof department fast flow, can pass through fan two this moment, blows hot-blast to the battery pole piece that is located deflector roll department, realizes the secondary heating, and directly blows the coating surface with hot-blast, improves drying efficiency.
However, the heating area of the heating mode provided by the utility model is limited and the heating temperature is single, and adverse effects such as slurry flowing may exist in the drying process.
CN 108722827A discloses a coating pole piece drying device for lithium battery processing, which comprises a drying box, wherein a feeding hole and a discharging hole are respectively arranged at the two transverse ends of the drying box, and a tension adjusting mechanism is arranged at one side of the drying box; an insulation can is placed on the back side of the drying box, an air pump is installed at the upper end of the insulation can, an air guide pipe and a blowing pipe are installed at two ends of the air pump respectively, and an air collecting pipe is connected to the outer end of the air guide pipe; the insulation can through go out the tuber pipe with the stoving case is linked together, it stretches into to go out the tuber pipe stoving incasement portion, the outer wall of going out the tuber pipe runs through and is provided with the exhaust vent.
The invention has the beneficial effects that: hot air is formed through the air pump and the heater, and circulating hot air flow is formed through the matching of the air suction pipe and the air outlet pipe, so that the circulating use of the hot air can be realized, the heat loss is prevented, and the energy is saved; the elasticity of the buffer spring is utilized to enable the sliding rod to slide and lift in the sliding cavity, and the adjusting roller is matched to realize tension adjustment, so that the drying effect of the device is ensured.
However, the pole piece is dried by hot air heat convection at the two sides of the pole piece, so that the heat utilization rate is low, the drying time is long, and the level of the pole piece is possibly influenced by the hot air.
Therefore, how to break through the limitation of the heating mode and improve the negative effects of the thinning width change, the thinning thickness change, the bulging edges at two sides, the cracks in the thinning area and the like which are easily caused by poor control of the wind speed and the temperature in the drying process is a technical problem which needs to be solved in the technical field of lithium ion battery manufacturing.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a coating drying device has adopted the drying device who takes heat-conduction formula heating as the main on the basis of traditional heat convection formula and heat radiation formula heating for temperature control is more accurate, is of value to energy saving and emission reduction, just drying device can provide different heating temperature for the pole piece of different stoving degrees.
To achieve the purpose, the utility model adopts the following technical proposal:
the utility model provides a coating and drying device, which comprises a coating device and a drying device;
the drying device comprises an oven;
a plurality of independent contact heating boxes are arranged inside the oven;
the contact heating box is used for heat conduction type heating.
The utility model provides a coating drying device, on the basis of traditional heat convection formula and thermal radiation formula heating, adopted the drying device who takes heat conduction formula heating as the main for temperature control is more accurate, is of value to energy saving and emission reduction, just drying device can provide different heating temperature for the pole piece of different stoving degrees, simultaneously, more reasonable utilization heat energy of coating drying device.
The heating mode of heat conduction formula heating that the contact heating case adopted, for thermal convection and heat radiation, it is higher to the utilization efficiency of heat energy to temperature control is more accurate.
The independent contact heating boxes, namely a plurality of contact heating boxes are disconnected and not connected, and the temperature of each contact heating box can be independently controlled without being interfered by the adjacent contact heating boxes. The pole pieces are independently arranged, so that different temperatures can be conveniently heated for the pole pieces with different drying degrees.
Preferably, the heating component of the contact heating box comprises any one of a roller heating furnace, a heating tube or a heating sheet or a combination of at least two of them, and typical but non-limiting combinations include a combination of a roller heating furnace and a heating tube, a combination of a heating tube and a heating sheet, a combination of a roller heating furnace and a heating sheet, or a combination of a roller heating furnace, a heating tube and a heating sheet.
The utility model provides a coating drying device is at the in-process of operation, during pole piece entering drying device after the coating, the heating region of contact heating cabinet can be relatively static or relative motion by the heating region with the pole piece.
When the contact heating box and the pole piece are relatively static, no friction exists during operation, and the pole piece cannot be damaged. Do not exist in prior art contact heating cabinet and pole piece relative motion's setting, the utility model discloses can realize relative motion, and make coating drying device's method is simple, realizes easily in the technology.
Preferably, the number of contact heating chambers is 3 or more, for example, 3, 5, 8, 10, 30 or 40, but not limited to the recited values, and other values not recited within the range of values are equally applicable.
Preferably, the width of the heating area of the contact heating box is more than or equal to the width of the coating area of the coating device.
Heating region width of contact heating cabinet is more than or equal to coating unit's the regional width of coating, at the device operation in-process, the contact heating cabinet not only can provide the source of heat, simultaneously, can carry out physics to the pole piece and support, keeps the level about the pole piece.
The utility model provides a contact heating cabinet provides the physics for the inside pole piece of oven and supports, has reduced the width change that thins that can appear in coating stoving in-process, has cut thickness change, both sides drum limit and has cut negative effects such as thin district crackle.
Preferably, a heat source is arranged between two adjacent contact heating boxes.
Preferably, the heat source comprises a tuyere for heat convection heating.
Preferably, the heat source comprises a source of thermal radiation for thermal radiative heating.
The utility model discloses set up wind gap or thermal radiation source between the contact heating cabinet, can be so that the heating condition satisfies the stoving demand of different thick liquids on the pole piece.
Preferably, the coating and drying device further comprises an unreeling device, a steering device and a reeling device.
The steering device comprises a coating steering device and a winding steering device.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the utility model provides a coating drying device, on the basis of traditional heat convection formula and thermal radiation formula heating, adopted the drying device who takes heat conduction formula heating as the main for temperature control is more accurate, is of value to energy saving and emission reduction, just drying device can provide different heating temperature for the pole piece of different stoving degrees, simultaneously, more reasonable utilization heat energy of coating drying device.
(2) The utility model provides a contact heating cabinet provides the physics for the inside pole piece of oven and supports, has reduced the negative effects such as the width change of thinning, the thickness change of thinning, both sides drum limit and the district crackle of thinning that can appear at coating stoving in-process.
(3) In the device operation process, the contact heating box not only can provide the source of heat, simultaneously, can carry out physics to the pole piece and support, keeps the level about the pole piece.
Drawings
Fig. 1 is a schematic structural view of a coating and drying apparatus provided by the present invention.
Fig. 2 is a schematic structural diagram of the contact heating box provided by the present invention.
Wherein:
the method comprises the steps of 1-unreeling device, 2-coating steering device, 3-drying device, 4-rolling steering device, 5-rolling device, 6-coating device, 7-drying oven, 8-heating track, 9-steering shaft and 10-heating wire.
Detailed Description
It is to be understood that in the description of the present invention, the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for the purpose of convenience and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present invention.
It should be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected" and "connected" in the description of the present invention are to be construed broadly, and may for example be fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.
Example 1
This embodiment provides a coating drying device, stoving coating device turns to device 2, drying device 3 and rolling from a left side to right and turns to device 4 including coating device 6, coating in proper order, the coating turns to device 2 and links to each other with unwinding device 1, the rolling turns to device 4 and links to each other with winding device 5 (fig. 1).
The drying device 3 comprises an oven 7, wherein 3 independent contact heating boxes are arranged in the oven, and the contact heating boxes are used for heating in a heat conduction mode. The heating components of the contact heating box are heating plates (fig. 2). The width of the heating area of the contact heating box is more than or equal to the width of the coating area of the coating device.
The contact heating box comprises a heating crawler belt 8, a steering shaft 9 and a heating wire 10.
And a heat source is arranged between every two adjacent contact heating boxes. The heat source is an air port and a heat radiation source which are respectively used for heat convection type heating and heat radiation type heating.
The operation and use modes of the coating and drying device are as follows:
and discharging the foil through the unwinding device 1, and coating the foil with the slurry through the coating device 6 to obtain the pole piece. The obtained pole piece moves to a drying device 3 after passing through a coating steering device 2, and is baked by contacting with a contact heating box to remove the solvent in the slurry. After the pole pieces are dried, the pole pieces are changed in direction, drawn and smoothed by the winding steering device 4 and then are collected into the winding device 5.
The coating and drying device provided by the embodiment increases a heat conduction heating mode on the basis of the existing heat radiation and heat convection in the oven. The surface shape of the contact heating box is a drum-type heating method. And a heating mode of an air port and a heat radiation source is arranged between 3 heating boxes so as to meet different drying requirements of the slurry. Meanwhile, the contact heating box physically supports the pole pieces, the left and right levels of the pole pieces are kept, the flow of the coated slurry caused by the unevenness of the foil is avoided, and the negative phenomena of the thinning width change, the thinning thickness change, the bulging edges at two sides, the cracks in the thinning area and the like at two sides of the pole pieces are avoided.
Example 2
The embodiment provides a coating and drying device, the drying and coating device sequentially comprises a coating device 6, a coating steering device 2, a drying device 3 and a winding steering device 4 from left to right, the coating steering device 2 is connected with an unreeling device 1, and the winding steering device 4 is connected with a winding device 5 (fig. 1).
The drying device 3 comprises an oven 7, wherein 3 independent contact heating boxes are arranged in the oven, and the contact heating boxes are heated in a heat conduction manner. The heating parts of the contact heating box comprise a drum-type heating furnace, a heating pipe and a heating sheet. The width of the heating area of the contact heating box is more than or equal to the width of the coating area of the coating device.
And a heat source is arranged between every two adjacent contact heating boxes. The heat source is an air port and a heat radiation source which are respectively used for heat convection type heating and heat radiation type heating.
The operation and use mode of the coating and drying device is as follows:
and (3) discharging the foil through the unwinding device 1, and coating the foil with slurry through the coating device 6 to obtain the pole piece. The obtained pole piece passes through the coating steering device 2 and then moves to the drying device 3, and the pole piece is baked by contacting with the contact heating box to remove the solvent in the slurry. After the pole pieces are dried, the pole pieces are changed in direction, drawn and smoothed by the winding steering device 4 and then are collected into the winding device 5.
The coating drying device provided by the embodiment increases a heat conduction heating mode on the basis of the existing heat radiation and heat convection in the oven. The surface shape of the contact heating box adopts three heating modes, namely a roller type heating pipe and a heating sheet. The heating boxes in three shapes are adopted in the same oven, so that different heating requirements can be met. And a heating mode of an air port and a heat radiation source is arranged between 3 heating boxes so as to meet different drying requirements of the slurry. Meanwhile, the contact heating box physically supports the pole pieces, the left and right levels of the pole pieces are kept, the flow of the coated slurry caused by the unevenness of the foil is avoided, and the negative phenomena of the thinning width change, the thinning thickness change, the bulging edges at two sides, the cracks in the thinning area and the like at two sides of the pole pieces are avoided.
Example 3
This embodiment provides a coating drying device, stoving coating device turns to device 2, drying device 3 and rolling from a left side to right and turns to device 4 including coating device 6, coating in proper order, the coating turns to device 2 and links to each other with unwinding device 1, the rolling turns to device 4 and links to each other with winding device 5 (fig. 1).
The drying device 3 comprises an oven 7, wherein 10 independent contact heating boxes are arranged in the oven, and the contact heating boxes are used for heating in a heat conduction mode. The heating component of the contact heating box is a heating pipe. The width of the heating area of the contact heating box is more than or equal to the width of the coating area of the coating device.
And a heat source is arranged between every two adjacent contact heating boxes. The heat source is an air port and a heat radiation source which are respectively used for heat convection type heating and heat radiation type heating.
The operation and use modes of the coating and drying device are as follows:
and (3) discharging the foil through the unwinding device 1, and coating the foil with slurry through the coating device 6 to obtain the pole piece. The obtained pole piece passes through the coating steering device 2 and then moves to the drying device 3, and the pole piece is baked by contacting with the contact heating box to remove the solvent in the slurry. After the pole pieces are dried, the pole pieces are changed in direction, drawn and smoothed by the winding steering device 4 and then are collected into the winding device 5.
The coating and drying device provided by the embodiment increases a heat conduction heating mode on the basis of the existing heat radiation and heat convection in the oven. The surface shape of the contact heating box is the heating mode of the heating pipe. And a heating mode of an air port and a heat radiation source is arranged among 10 heating pipes so as to meet different drying requirements of the slurry. Meanwhile, the heating pipe in the contact heating box physically supports the pole piece, the left and right levels of the pole piece are kept, the flow of the coated slurry caused by the unevenness of the foil is avoided, and the negative phenomena of the thinning width change, the thinning thickness change, the bulging edges at two sides, the cracks in the thinning area and the like at two sides of the pole piece are avoided.
To sum up, the utility model provides a coating drying device, on the basis of traditional heat convection formula and heat radiation formula heating, adopted the drying device who takes heat conduction formula heating as the main for temperature control is more accurate, is of value to energy saving and emission reduction, just drying device can provide different heating temperature for the pole piece of different stoving degrees, simultaneously, the more reasonable heat energy that utilizes of coating drying device.
The above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto, and it should be understood by those skilled in the art that any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are all within the protection scope and the disclosure scope of the present invention.
Claims (8)
1. The coating and drying device is characterized by comprising a coating device and a drying device;
the drying device comprises an oven;
a plurality of independent contact heating boxes are arranged inside the oven;
the contact heating box is used for heat conduction type heating.
2. The coating and drying apparatus according to claim 1, wherein the heating unit of the contact heating box comprises any one of a roller heating furnace, a heating pipe, or a heating sheet, or a combination of at least two of them.
3. The coating and drying apparatus of claim 1, wherein the number of the contact heating boxes is 3 or more.
4. The coating and drying device according to claim 1, wherein the width of the heating area of the contact heating box is greater than or equal to the width of the coating area of the coating device.
5. The coating and drying apparatus according to claim 1, wherein a heat source is provided between two adjacent contact heating boxes.
6. The coating drying device of claim 5, wherein the heat source comprises a tuyere for heat convection heating.
7. The coating drying apparatus of claim 5 wherein the heat source comprises a thermal radiation source for thermal radiant heating.
8. The coating and drying device of claim 1, further comprising an unwinding device, a steering device and a winding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969043.0U CN217250339U (en) | 2022-04-25 | 2022-04-25 | Coating drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220969043.0U CN217250339U (en) | 2022-04-25 | 2022-04-25 | Coating drying device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217250339U true CN217250339U (en) | 2022-08-23 |
Family
ID=82878655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220969043.0U Active CN217250339U (en) | 2022-04-25 | 2022-04-25 | Coating drying device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217250339U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493220A (en) * | 2023-04-14 | 2023-07-28 | 浙江凤启新能源股份有限公司 | Drying and forming device and forming process of carbon-coated aluminum foil conductive slurry |
| CN116493220B (en) * | 2023-04-14 | 2024-05-03 | 浙江凤启新能源股份有限公司 | Drying and forming device and forming process of carbon-coated aluminum foil conductive slurry |
-
2022
- 2022-04-25 CN CN202220969043.0U patent/CN217250339U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116493220A (en) * | 2023-04-14 | 2023-07-28 | 浙江凤启新能源股份有限公司 | Drying and forming device and forming process of carbon-coated aluminum foil conductive slurry |
| CN116493220B (en) * | 2023-04-14 | 2024-05-03 | 浙江凤启新能源股份有限公司 | Drying and forming device and forming process of carbon-coated aluminum foil conductive slurry |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204208740U (en) | A kind of lithium battery electrode plate coating machine | |
| CN102294883B (en) | Upper and lower hot air type drying box used for single-sided printing or coating | |
| CN206490132U (en) | Battery pole piece heat drying apparatus | |
| CN203586706U (en) | Roll material collecting and releasing baking chamber | |
| CN213570646U (en) | Stainless steel coil annealing furnace with quick cooling mechanism | |
| CN215088420U (en) | Surface coating device for lithium battery adhesive tape processing | |
| CN202700767U (en) | Drying oven for heating and drying device of battery pole piece double-sided coating machine | |
| CN210220540U (en) | Lithium battery pole piece microwave drying device | |
| CN217250339U (en) | Coating drying device | |
| CN108722827B (en) | Coating pole piece drying device for lithium battery processing | |
| CN110783240A (en) | Furnace body equipment | |
| CN210174392U (en) | Printing oven with two-sided blowing device | |
| CN216443942U (en) | Automatic carton packaging machine for packaging carton processing | |
| CN213657422U (en) | Device of PVB film moisture content adjustment | |
| CN209279605U (en) | Lithium battery diaphragm Equipment for Heating Processing and its separator product obtained | |
| CN204602548U (en) | The device that a kind of battery pole piece coating is dry | |
| CN210956608U (en) | Furnace body equipment | |
| CN208296524U (en) | A kind of tire base drying unit for the drying of bituminized shingle tire base | |
| CN218511402U (en) | Pu protective film dryer | |
| CN207310834U (en) | A kind of all-sealed printing machine baking oven | |
| CN217569517U (en) | A liftable heating device for lithium cell coating machine | |
| CN102698933B (en) | Efficient energy-saving combined type battery pole piece two-side coater | |
| CN212542487U (en) | Processing device for producing battery positive pole piece | |
| CN219210533U (en) | Baking mechanism for coating equipment | |
| CN211591803U (en) | Novel film printing is dried device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |