CN217797191U - Double-layer drying oven and coating system - Google Patents

Abstract

The utility model relates to a technical field of coating technology, concretely relates to double-deck oven and coating system is equipped with feed inlet and discharge gate on it on the double-deck oven, including the oven new trend layer that communicates in proper order, walk belting and oven return air layer, it is used for transporting the pole piece to walk the belting, oven new trend layer one side intercommunication has the air intake, oven return air layer one side intercommunication has the air outlet. Fresh air enters from an air inlet of a fresh air layer of the oven and is blown out of the pole piece, so that the drying of the pole piece is accelerated. The old air blown over the pole piece flows into the air return layer of the drying oven and is discharged from the air outlet. Through adopting oven new trend layer and oven return air layer bilayer structure, can have solitary route to new trend and old wind, reduce the return air dead angle for the environment of whole stoving is more stable, has improved the drying efficiency of pole piece.

Description

Double-layer drying oven and coating system

Technical Field

The utility model relates to a coating process's technical field, concretely relates to double-deck oven and coating system.

Background

The production of lithium ion electrode generally comprises coating corresponding electrode material on a substrate to form a battery pole piece, performing primary drying in a drying oven after coating, rolling and transferring to the next process.

The existing drying oven is single-layer, air return dead angles exist in the oven body, and the fresh air and the old air are easily mixed, so that the old air cannot be exhausted completely, the temperature in the drying oven is unstable, and the drying efficiency of the pole piece is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-deck oven and coating system to old wind takes out not influence the technical problem of temperature stability in the oven as far as possible in solving among the prior art oven.

In order to realize the above purpose, the utility model provides a technical scheme provide a double-deck oven is equipped with feed inlet and discharge gate on it, including the oven new trend layer that communicates in proper order, walk band layer and oven return air layer, it is used for transporting the pole piece to walk the band layer, oven new trend layer one side intercommunication has the air intake, oven return air layer one side intercommunication has the air outlet.

Further, the belt conveying layer comprises a plurality of oven rollers, and the oven rollers are distributed from the feeding port to the discharging port for conveying the pole pieces.

Furthermore, a plurality of air blowing openings are formed in the fresh air layer of the oven, and each air blowing opening is opposite to the roller.

Furthermore, a blowing piece is arranged at the blowing opening and comprises a first side plate and a second side plate which are arranged oppositely, a blowing slit is arranged between the first side plate and the second side plate, and the blowing slit is communicated with the fresh air layer of the oven and blows air to the pole piece.

Furthermore, one end of the blowing piece, which is close to the fresh air layer of the oven, is provided with an air deflector for guiding the air of the blowing slit.

The drying oven comprises an oven inner heat insulation layer, an oven roller, an oven fresh air layer, an oven return air layer and an oven outer heat insulation layer in sequence from inside to outside.

Furthermore, the oven fresh air layer and the oven return air layer are communicated with a plurality of return air pipe groups (53), and the air blowing ports and the return air pipe groups are arranged at intervals.

Further, the feed inlet and the discharge outlet are arranged on the same side of the double-layer drying oven, and the pole pieces are folded and conveyed.

Further, the temperature detection device is arranged in the temperature detection device.

Further, this application still provides a coating system, adopts above-mentioned double-deck oven.

The beneficial effects of the utility model reside in that:

1. fresh air enters from an air inlet of a fresh air layer of the oven and is blown out of the pole piece, so that the drying of the pole piece is accelerated. The old air flowing through the pole piece flows into the air return layer of the oven and is discharged from the air outlet. By adopting the double-layer structure of the fresh air layer and the return air layer of the oven, the fresh air layer and the return air layer can have independent routes to the fresh air and the old air, reduce the dead angle of the return air, ensure the whole baking environment to be more stable, and improve the drying efficiency of the pole piece.

2. In the actual drying process of pole piece, when the wind that the mouth of blowing blew off was used on the pole piece, can produce the effect of pressure to the pole piece local and take place deformation, the damage of pole piece is caused easily when wind-force is big. Be equipped with a plurality of mouths of blowing on the oven new trend layer, through all crossing the roller with the oven with each mouth of blowing and setting up relatively, the roller is crossed to the oven can carry out better support to the pole piece of air outlet department, has reduced the deformation degree of pole piece, can play the effect of protection pole piece to a certain extent.

3. Be equipped with the slit of blowing between first curb plate and the second curb plate, the slit of blowing communicates the new trend layer of oven and bloies to the pole piece. Through setting up the slit of blowing, on the one hand guides gas for gas directly blows the surface of pole piece and carries out the drying, and on the other hand can play the effect that increases atmospheric pressure, makes the pole piece surface of blowing of air current rapid and stable.

4. One end of the blowing piece, which is close to the fresh air layer of the oven, is provided with an air deflector for guiding air to the blowing slit. According to the position of the air inlet, the installation position and the installation angle of the air deflector are correspondingly designed, and the air flow is guided to be quickly blown to the surface of the pole piece.

5. The mouth of blowing and return air duct group interval set up, can follow the return air duct group of both sides just after the pole piece surface is bloied to the mouth of blowing and return air duct group carries out the return air, has greatly improved the circulation flow efficiency of new trend old wind.

6. The feed inlet and the discharge outlet are arranged on the same side of the double-layer oven, and the pole piece is folded back and conveyed. The structure can make full use of the space of the oven, so that more areas of the pole piece are positioned in the oven for drying.

7. The double-layer drying oven also comprises a temperature detection device arranged inside the double-layer drying oven, and the temperature detection device is matched with the blowing circulation device connected with the double-layer drying oven for use, so that the blowing temperature in the drying oven can be adjusted, and the temperature of the drying oven can be intelligently adjusted.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a cross-sectional view of a double-layer oven provided by an embodiment of the present invention;

fig. 2 is a schematic view of an installation position of a double-layer oven provided by an embodiment of the present invention;

fig. 3 is a side view of an installation position of a double-layer oven according to an embodiment of the present invention;

FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view of portion B of FIG. 4;

fig. 6 is a cross-sectional view of the internal structure of a double-layer oven provided by the embodiment of the present invention.

Description of reference numerals:

1. a feed inlet; 2. a discharge port; 3. insulating layers in the oven; 4. passing a roller through an oven; 5. a fresh air layer of the oven; 51. an air inlet; 52. a blowing member; 521. a first side plate; 522. a second side plate; 523. a blowing slit; 524. an air deflector; 53. an air return pipe group; 6. a drying oven air return layer; 61. an air outlet; 7. a heat insulation layer outside the oven; 8. and (6) pole pieces.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" 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 "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, 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 in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

Referring to fig. 1-6, as the embodiment of the utility model provides a double-deck oven, be equipped with feed inlet 1 and discharge gate 2 on it, the oven includes thermal-insulation layer 3 in the oven from interior to exterior in proper order, walk the band layer, oven new trend layer 5, oven return air layer 6 and oven outer thermal-insulation layer 7, the oven is crossed roller 4 and is a plurality of, lay to discharge gate 2 from feed inlet 1 and supply the transportation of pole piece 8, oven new trend layer 5 one side is equipped with air intake 51, one side of oven return air layer 6 is equipped with air outlet 61, oven new trend layer 5 is equipped with a plurality of mouths of blowing in the one side that is close to pole piece 8, oven new trend layer 5 and oven return air layer 6 intercommunication have return air pipe group 53, air intake 51, oven new trend layer 5, the mouth of blowing, return air pipe group 53, oven return air layer 6 and air outlet 61 communicate in proper order. Fresh air enters from an air inlet 51 of the fresh air layer 5 of the drying oven and is blown out of the air blowing port on one side of the pole piece 8, so that the pole piece 8 is dried at an accelerated speed. The old air blown over the pole piece 8 is discharged from the return air pipe group 53 on one side, flows into the oven return air layer 6 and is discharged from the air outlet 61. Through adopting 6 bilayer structure in oven new trend layer 5 and the 6 layer of oven return air, can have solitary route to new trend and old wind, reduce the return air four corners, and be equipped with interior thermal-protective layer and outer thermal-protective layer, reduce energy loss for the environment of whole stoving is more stable, has improved pole piece 8's drying efficiency.

Specifically, feed inlet 1 and discharge gate 2 set up in the same side of double-deck oven, and pole piece 8 is turned over and is transported. The structure can make full use of the space of the oven, so that more areas of the pole piece 8 are positioned in the oven for drying. The tape transport layer comprises a plurality of oven rollers 4, and the oven rollers 4 are distributed from the feed port 1 to the discharge port 2 for conveying the pole pieces 8. In the implementation, only one-time folding is adopted, namely, the double-layer drying oven is symmetrically arranged in a concave shape, and the pole piece 8 enters from the feeding hole 1 and is discharged from the discharging hole 2 at the same side of the material reducing hole after being turned by one-time conveying of the drying oven through the roller 4. Set up to foretell inflection structure, both guaranteed that new trend and old wind have solitary route, reduce the return air four corners, increase the area of blowing simultaneously again for pole piece 8's drying. Be equipped with a plurality of mouths of blowing on oven fresh air layer 5, oven fresh air layer 5 and oven return air layer 6 intercommunication have a plurality of return air nest of tubes 53, and mouth and the interval of return air nest of tubes 53 set up of blowing, can carry out the return air from the return air nest of tubes 53 of both sides just after 8 surfaces of pole piece are bloied to the mouth of blowing, have greatly improved the circulation flow efficiency of the old wind of new trend. Each of the return air tube groups 53 includes a plurality of connection tubes arranged along a row. If what adopt is through setting up a structure intercommunication oven new trend layer 5 and oven return air layer 6 that connects logical groove, because it is great to lead to the groove opening, it is higher to each item index requirements such as sealed to lead to the inslot formation negative pressure, outside convulsions subassembly this moment needs very big operating power just can take out the old wind. Through the structure that adopts a plurality of connecting pipes in this embodiment, it is easier to form the negative pressure in the connecting pipe, and outside convulsions subassembly this moment uses less operating power just can take out the old wind, even if one of them connecting pipe does not form the negative pressure, also can not exert an influence to holistic convulsions effect. Each air blowing port is arranged opposite to the oven roll 4. In the actual drying process of pole piece 8, when the wind that the mouth of blowing blew off was used pole piece 8 on, can produce the effect of pressure to pole piece 8 local and take place deformation, cause pole piece 8's damage easily when wind-force is big. Be equipped with a plurality of mouths of blowing on oven fresh air layer 5, through all crossing roller 4 with the oven with each mouth of blowing and set up relatively, the roller 4 is crossed to the oven can carry out better support to the pole piece 8 of air outlet department, has reduced the deformation degree of pole piece 8, can play the effect of protection pole piece 8 to a certain extent.

As a variable embodiment, a feed inlet 1 and a discharge outlet 2 are arranged on the opposite sides of the double-layer oven, and the pole piece 8 is conveyed in a mode of being folded back for multiple times. The structure can also enable more areas of the pole piece 8 to be positioned in the drying oven for drying, but the installation position of the blowing piece 52 needs to be considered at the moment, so that the air return dead angle is avoided.

Further, a blowing piece 52 is arranged at the blowing opening, the blowing piece 52 comprises a first side plate 521 and a second side plate 522 which are arranged oppositely, a blowing slit 523 is arranged between the first side plate 521 and the second side plate 522, and the blowing slit 523 is communicated with the oven fresh air layer 5 and blows air to the pole piece 8. Through setting up the slit 523 of blowing, on the one hand to gas guide for gas directly blows the surface of pole piece 8 and carries out the drying, and on the other hand can play the effect that increases atmospheric pressure, makes the air current fast and stable blow the 8 surfaces of pole piece.

Specifically, referring to fig. 5, the first side plate 521 and the second side plate 522 are disposed oppositely and obliquely, so that the blowing slit 523 forms a triangle shape, which facilitates rapid air outlet. One end of the blowing piece 52 close to the fresh air layer 5 of the oven is provided with an air deflector 524 for guiding the blowing slit 523. According to the position of the air inlet 51, the installation position and the installation angle of the air deflector 524 are correspondingly designed, so that the air flow is guided to be quickly blown to the surface of the pole piece 8. The ends of the first side plate 521 and the second side plate 522 close to the pole piece 8 are both arranged to be bent. In the actual drying process of the pole piece 8, one end of the blowing piece 52 touches the surface of the pole piece 8, and the ends of the first side plate 521 and the second side plate 522 close to the pole piece 8 are both provided with chamfers, so that the sharp end of the blowing piece 52 is prevented from scratching the surface of the pole piece 8.

As a variable embodiment, the first side plate 521 and the second side plate 522 may also be arranged in parallel relatively, but this structure may also perform air outlet, but the air outlet speed is slow, and it is not easy to form a circulating air, and an air return dead angle is easy to occur. The blowing member 52 may also be directly formed of a nozzle structure of the prior art. The ends of the first side plate 521 and the second side plate 522 close to the pole piece 8 may also be chamfered, and at this time, a layer of elastic glue may be adhered to prevent scratching the pole piece 8. The blowing member 52 may be directly used with a gas nozzle of the prior art.

Further, the double-layer oven also comprises a temperature detection device arranged in the double-layer oven. The air blowing circulating device connected with the double-layer oven is matched for use, so that the air blowing temperature in the oven is adjusted, the temperature of the oven is intelligently adjusted, and the whole baking environment is more stable.

Example 2

As the embodiment of the utility model provides a coating system adopts the double-deck oven in embodiment 1 to carry out the drying process technology of pole piece 8. Through adopting 6 bilayer structure in oven new trend layer 5 and the 6 layer of oven return air, can have solitary route to new trend and old wind, reduce the return air four corners, and be equipped with interior thermal-protective layer and outer thermal-protective layer, reduce energy loss for the environment of whole stoving is more stable, has improved pole piece 8's drying efficiency.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (10)

1. A double-layer oven is provided with a feeding hole (1) and a discharging hole (2), and is characterized in that the feeding hole (1) and the discharging hole (2) are arranged on the same side of the double-layer oven; the double-layer drying oven is symmetrically concave and comprises a drying oven fresh air layer (5), a belt conveying layer and a drying oven return air layer (6), wherein the drying oven fresh air layer, the belt conveying layer and the drying oven return air layer are sequentially communicated, the belt conveying layer is used for conveying pole pieces (8), one side of the drying oven fresh air layer (5) is communicated with an air inlet (51), one side of the drying oven return air layer (6) is communicated with an air outlet (61), a plurality of air blowing ports are formed in the drying oven fresh air layer (5), and the drying oven fresh air layer (5) and the drying oven return air layer (6) are communicated with a plurality of return air pipe groups (53); the air inlet (51), the oven fresh air layer (5), the air blowing port, the air return pipe group (53), the oven air return layer (6) and the air outlet (61) are communicated in sequence.

2. Double-deck oven according to claim 1, characterized in that the belt layer comprises a plurality of oven over-rollers (4), wherein a plurality of oven over-rollers (4) are arranged from the feed opening (1) to the discharge opening (2) for carrying the pole pieces (8).

3. Double-deck oven according to claim 2, characterized in that each of said blowing openings is arranged opposite to said oven over-roll (4).

4. The double-layer oven according to claim 2, characterized in that the blowing port is provided with a blowing piece (52), the blowing piece (52) comprises a first side plate (521) and a second side plate (522) which are arranged oppositely, a blowing slit (523) is arranged between the first side plate (521) and the second side plate (522), and the blowing slit (523) is communicated with the oven fresh air layer (5) and blows air to the pole piece (8).

5. The double-deck oven according to claim 4, characterized in that the end of the blowing member (52) close to the fresh air layer (5) of the oven is provided with a wind deflector (524) for guiding the wind of the blowing slit (523).

6. The double-layer oven according to any one of claims 2 to 5, further comprising an inner oven insulation layer (3) and an outer oven insulation layer (7), wherein the oven comprises the inner oven insulation layer (3), the oven over-roller (4), the oven fresh air layer (5), the oven return air layer (6) and the outer oven insulation layer (7) in sequence from inside to outside.

7. The double-deck oven according to claim 3, characterized in that the air blowing port and the air return pipe group (53) are provided at a distance.

8. Double-deck oven according to any one of claims 1 to 5, characterized in that the pole pieces (8) are transported folded back.

9. The double-layered oven according to any one of claims 1 to 5, further comprising a temperature detection device disposed inside thereof.

10. A coating system characterized by using the double-layered oven according to any one of claims 1 to 9.

Images