CN219683192U

CN219683192U - Tuyere and oven

Info

Publication number: CN219683192U
Application number: CN202321323012.9U
Authority: CN
Inventors: 刘建栓; 杨赛强; 周研
Original assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Current assignee: Dongguan Songshanhu Jiatuo Intelligent Equipment Co ltd
Priority date: 2023-05-26
Filing date: 2023-05-26
Publication date: 2023-09-15
Anticipated expiration: 2033-05-26

Abstract

The utility model discloses a tuyere and a drying oven, wherein the drying oven comprises a box body and a plurality of tuyere bodies arranged in the box body, one side of the box body is provided with a pole piece inlet for a pole piece to enter the box body, the other side of the box body is provided with a pole piece outlet for the pole piece to come out of the box body, the tuyere bodies are positioned above the pole piece, the tuyere bodies comprise a shell, the shell is provided with an air inlet cavity, a mounting cavity and an air exhaust cavity, the air inlet cavity, the mounting cavity and the air exhaust cavity are sequentially arranged along the direction from the pole piece inlet to the pole piece outlet, one side of the shell is provided with an air inlet and an air exhaust port, the air inlet and the air exhaust port are respectively communicated with the air inlet cavity and the air exhaust cavity, a heating module is arranged in the mounting cavity, the bottom end of the shell faces the pole piece and is provided with an air inlet slit, an opening and an air exhaust slit, the air inlet slit and the air exhaust slit are respectively communicated with the air inlet cavity, the mounting cavity and the air exhaust cavity, and the air inlet slit and the air exhaust slit face the area between the heating module and the pole piece. The utility model reduces the volume of the oven and improves the drying efficiency.

Description

Tuyere and oven

Technical Field

The utility model relates to the technical field of lithium battery production, in particular to a tuyere and an oven.

Background

In the manufacturing process of the lithium battery, the pole piece needs to be dried in an oven after being coated. Existing ovens generally include a box, a hull structure disposed within the box, and a plurality of windup nozzles disposed on the hull structure. When the novel solar energy heat pump box is in practical application, external air is heated by a heating bag or a heat exchanger and the like arranged outside the box body to form hot air, after the hot air enters the hull structure, the hot air is split to each windup nozzle through the hull structure and then blown onto the pole piece through the windup nozzle, so that the front face of the pole piece is heated and dried, and then the hot air in the box body and NMP (N-methylpyrrolidone) steam, water vapor and the like evaporated in the pole piece drying process are mixed and then discharged to the outside of the box body through an air outlet of the box body. The oven of this kind of structure is because it relies on the mode that the blast gate blow hot-blast to the pole piece to realize heating and drying the pole piece, therefore need set up the structure such as the heating package or the heat exchanger of the outside heating air of hull structure and box in the inside of box, and this structure can make the volume of oven great, and the occupation space of oven is big, has increased equipment maintenance cost. And because the hot air in the box and the NMP steam and the vapor evaporated in the pole piece drying process are discharged to the outside of the box through the air outlet of the box, the situation that part of NMP steam and vapor cannot be timely discharged to the outside of the box can occur, and the drying efficiency is reduced.

Disclosure of Invention

In order to overcome the defects of the prior art, the utility model provides the tuyere and the oven, which simplify the structure of the oven, reduce the volume of the oven, reduce the occupied space of the oven, reduce the maintenance cost of equipment and improve the drying efficiency.

The technical scheme adopted for solving the technical problems is as follows:

the first aspect of the utility model provides an oven, which comprises a box body and a plurality of air nozzles arranged in the box body, wherein one side of the box body is provided with a pole piece inlet for a pole piece to enter the box body, the other side of the box body is provided with a pole piece outlet for the pole piece to come out of the box body, the air nozzles are positioned above the pole piece, the air nozzles comprise a shell, the shell is provided with an air inlet cavity, a mounting cavity and an air exhaust cavity, the air inlet cavity, the mounting cavity and the air exhaust cavity are sequentially arranged along the direction from the pole piece inlet to the pole piece outlet, one side of the shell is provided with an air inlet and an air exhaust port, the air inlet and the air exhaust port are respectively communicated with the air inlet cavity and the air exhaust cavity, the mounting cavity is internally provided with a heating module, the bottom end of the shell is towards the pole piece and is provided with an air inlet slit, an opening and an air exhaust slit, the air inlet slit and the air exhaust slit are respectively communicated with the air inlet cavity, the mounting cavity and the air exhaust slit are respectively towards the area between the heating module and the pole piece.

As the preferable technical scheme, the air inlet of each upper air nozzle is connected with an upper fresh air pipeline through a first pipeline respectively, one end of the upper fresh air pipeline is closed, the other end of the upper fresh air pipeline extends out of the box body and is connected with an upper fresh air fan, the air outlet of each upper air nozzle is connected with an upper return air pipeline through a second pipeline respectively, one end of the upper return air pipeline is closed, and the other end of the upper return air pipeline extends out of the box body and is connected with an upper exhaust fan.

As the preferable technical scheme, the air inlet and the air outlet are both provided with air gates.

As the preferable technical scheme, the air inlet of each upper air nozzle is respectively connected with an upper air inlet pipeline, one end of the upper air inlet pipeline, which is far away from the corresponding air inlet, extends out of the box body and is provided with an upper air inlet fan, the air outlet of each upper air nozzle is respectively connected with an upper air exhaust pipeline, and one end of the upper air exhaust pipeline, which is far away from the corresponding air outlet, extends out of the box body and is provided with an upper air exhaust fan.

As a preferable technical scheme, the heating module is a laser heating module or an infrared lamp tube.

As the preferable technical scheme, the pole piece conveying device comprises a plurality of carrier rollers rotatably arranged in the box body, and the carrier rollers are sequentially arranged at intervals along the direction from the pole piece inlet to the pole piece outlet.

As the preferable technical scheme, the pole piece is characterized by further comprising a plurality of lower air nozzles, wherein the lower air nozzles are positioned below the pole piece and correspond to the upper air nozzles one by one, the lower air nozzles have the same structure as the upper air nozzles, and the lower air nozzles and the corresponding upper air nozzles are arranged in an up-down symmetry manner.

As the preferable technical scheme, the pole piece suspension device further comprises a plurality of air floatation rollers for suspending and supporting the pole piece.

The second aspect of the utility model provides a tuyere, which comprises a shell, wherein the shell is provided with an air inlet cavity, a mounting cavity and an air exhaust cavity, the air inlet cavity, the mounting cavity and the air exhaust cavity are sequentially arranged, one side of the shell is provided with an air inlet and an air outlet, the air inlet and the air outlet are respectively communicated with the air inlet cavity and the air exhaust cavity, a heating module is arranged in the mounting cavity, the bottom end of the shell faces a pole piece and is provided with an air inlet slit, an opening and an air exhaust slit, the air inlet slit, the opening and the air exhaust slit are respectively communicated with the air inlet cavity, the mounting cavity and the air exhaust cavity, and the air inlet slit and the air exhaust slit are respectively directed to the area between the heating module and the pole piece.

The beneficial effects of the utility model are as follows: according to the utility model, the heating module arranged on the upper air nozzle can heat and dry the front surface of the pole piece, the structure of the oven is simplified, the volume of the oven is reduced, the occupied space of the oven is small, the equipment maintenance cost is reduced, an air circulation can be formed between each upper air nozzle and the pole piece independently through the air inlet, the air outlet, the air inlet cavity, the air outlet cavity, the air inlet slit and the air outlet slit arranged on the upper air nozzle, and NMP steam and water vapor evaporated in the region between the heating module and the pole piece can be timely taken away through the air circulation, so that NMP steam and water vapor evaporated by drying can be timely discharged to the outside of the oven body, and the drying efficiency is improved.

Drawings

The utility model will be further described with reference to the drawings and examples.

FIG. 1 is a schematic view of a tuyere structure according to the present utility model;

FIG. 2 is a schematic bottom view of the tuyere of FIG. 1;

FIG. 3 is a schematic view of the laser heating module of the tuyere of FIG. 1;

FIG. 4 is a schematic view of the structure of an oven according to the present utility model;

fig. 5 is a schematic view of the structure of an alternative embodiment of the oven provided by the present utility model.

Detailed Description

The conception, specific structure, and technical effects produced by the present utility model will be clearly and completely described below with reference to the embodiments and the drawings to fully understand the objects, features, and effects of the present utility model. It is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments, and that other embodiments obtained by those skilled in the art without inventive effort are within the scope of the present utility model based on the embodiments of the present utility model. In addition, all the coupling/connection relationships referred to in the patent are not direct connection of the single-finger members, but rather, it means that a better coupling structure can be formed by adding or subtracting coupling aids depending on the specific implementation. The technical features in the utility model can be interactively combined on the premise of no contradiction and conflict.

Referring to fig. 1 and 2, the tuyere provided by the present utility model includes a housing 132, wherein the bottom end of the housing 132 faces the pole piece 100. The housing 132 has an air intake chamber 1322, a mounting chamber 1323, and an air exhaust chamber 1324, the air intake chamber 1322, the mounting chamber 1323, and the air exhaust chamber 1324 being disposed in this order from left to right. One side, such as the rear side, of the housing 132 is provided with an air inlet 1325 and an air outlet 1326, and the air inlet 1325 and the air outlet 1326 are respectively communicated with the air inlet cavity 1322 and the air outlet cavity 1324. A heating module 133 for heating the front surface of the pole piece 100 is provided in the mounting cavity 1323. The bottom end of the housing 132 is provided with an air inlet slot 1327, an opening and an air outlet slot 1328, and the air inlet slot 1327, the opening and the air outlet slot 1328 are respectively communicated with the air inlet cavity 1322, the mounting cavity 1323 and the air outlet cavity 1326. The air intake slots 1327 and the air exhaust slots 1328 are each directed toward the region between the heating module 133 and the pole piece 100.

In practical application, external air can enter the air inlet cavity 1322 through the air inlet 1325 and then be blown out from the air inlet slot 1327, and because the air inlet slot 1327 and the air outlet slot 1328 face the area between the heating module 133 and the pole piece 100, the air blown out from the air inlet slot 1327 can enter the area between the heating module 133 and the pole piece 100, and after being mixed with NMP steam and water vapor evaporated in the drying process of the pole piece 100, the air enters the air outlet cavity 1324 through the air outlet slot 1328 and then is discharged through the air outlet 1326, and the air entering the area between the heating module 133 and the pole piece 100 can also be heated by the heating module 133. The arrows at the intake slot 1327 and the exhaust slot 1328 in fig. 1 indicate the direction of the air.

In this embodiment, the heating module 133 is a laser heating module, and the front surface of the pole piece 100 can be heated by the laser heating module.

The laser heating module 133 is a semiconductor laser. As shown in fig. 3, the semiconductor laser mainly includes a laser chip set 1332, a laser irradiation plate 1333 provided at the bottom end of the laser chip set 1332, and a cooling module 1334 provided at the top end of the laser chip set 1332. The laser chipset 1332 is electrically connected to one end of a power line 1337, and the other end of the power line 1337 passes through the mounting channel of the cooling module 1334, the first through hole at the top end of the housing 132 and extends out of the top end of the housing 132, and is electrically connected to an external controller, so as to supply power to the laser chipset 1332. A cooling channel is provided in the cooling module 1334, one end of the cooling channel is connected with the water inlet pipe 1335, and the other end is connected with the return pipe 1336. The end of the water inlet pipe 1335 remote from the cooling passage passes through the second through hole at the top end of the housing 132 and protrudes out of the top end of the housing 132, and is connected to the water circulation system. The end of the return pipe 1336 remote from the cooling passage passes through the third through hole at the top end of the housing 132 and protrudes out of the top end of the housing 132, and is connected to the water circulation system. Cooling water can enter the cooling channel through the water inlet pipe 1335 and then flow out through the return pipe 1336, and the cooling water entering the cooling channel can exchange heat with heat generated by heating of the laser chip set 1332, so that heat dissipation of the laser chip set 1332 can be achieved. The laser irradiation plate 1333 is electrically connected with the laser chip set 1332, and the laser irradiation plate 1333 is controlled by the laser chip set 1332 to irradiate laser on the front surface of the pole piece 100, so that the front surface of the pole piece 100 is heated, and the laser irradiation plate 1333 comprises a plurality of semiconductor laser units distributed in an array. The bottom end of the laser irradiation plate 1333 is preferably flush with the bottom end of the housing 132.

The laser heating module with the structure can divide the pole piece 100 into a plurality of or tens of different heating areas according to the requirement, the output power of the semiconductor laser unit corresponding to each heating area can be independently controlled, and different powers can be output according to the requirement, such as: in the drying process of the pole piece 100, different heating powers can be selected for the middle area and the tab area, so that the problem of tab wrinkling can be solved. Likewise, the semiconductor laser units corresponding to the heating areas can be selected to be turned on or off according to the widths of the different pole pieces 100, so that the purpose of saving energy is achieved, and the drying process of the pole pieces 100 can be digitalized and intelligentized. In addition, the wavelength of the laser that adopts can select different wavelengths according to the characteristic of heated material, and the laser source is the cold light source, and the characteristic of the absorption wavelength of matching heated material in addition can make whole dry ambient temperature can not rise, provides operating personnel's comfort level.

In other embodiments, the heating module 133 may be an infrared lamp tube, through which the front surface of the pole piece 100 can be heated by infrared rays, so that the heat transfer efficiency is high, the heating speed is high, the heating time is short, and the drying efficiency is improved. The infrared lamp tube is electrically connected with an external controller through a connecting wire.

Referring to fig. 4, the present utility model further provides an oven, which includes a case 12, the air nozzle, and a conveying device disposed in the case 12 and used for conveying the pole piece 100. The number of the air nozzles is plural, and the plural air nozzles are provided in the case 12. The tuyere is an uptuyere 13.

The left side of the box 12 is provided with a pole piece inlet for the pole piece 100 to enter the box 12, and the right side of the box 12 is provided with a pole piece outlet for the pole piece 100 to come out of the box 12.

A plurality of windup nozzles 13 are located above pole piece 100. The plurality of windup nozzles 13 are connected in sequence along the direction from the pole piece inlet to the pole piece outlet. The direction from the pole piece entrance to the pole piece exit is the walking direction of the pole piece 100. The plurality of windup nozzles 13 are used for drying the front surface of the pole piece 100, so the embodiment is mainly applied to an apparatus for single-sided coating of the pole piece 100. In this embodiment, the plurality of air nozzles 13 are disposed at the bottom ends of the air nozzle mounting plates 14, and the front side and the rear side of the air nozzle mounting plates 14 are disposed on the front side inner wall and the rear side inner wall of the case 12, respectively. The number of the upwind nozzles 13 may be set according to actual conditions.

Specifically, the top ends of the housings 132 of the plurality of upper tuyeres 13 are each provided at the bottom end of the upper tuyere mounting plate 14 by fasteners such as bolts, nuts, or the like. More specifically, the top end of the housing 132 and the upper tuyere mounting plate 14 are respectively provided with a first mounting hole and a second mounting hole, the bolt is in threaded fit with the second mounting hole, and the bolt part protrudes out of the bottom end of the upper tuyere mounting plate 14 and is in threaded fit with the first mounting hole, and the nut is in threaded fit with the bolt and is tightly pressed on the top end of the upper tuyere mounting plate 14 so as to lock the bolt, and the height of the housing 132 in the vertical direction can be adjusted by adjusting the length of the bolt protruding out of the bottom end of the upper tuyere mounting plate 14, so that the distance between the upper tuyere 13 and the pole piece 100 can be adjusted. The air inlet cavity 1322, the mounting cavity 1323 and the air exhaust cavity 1324 of the air nozzle 13 are sequentially arranged along the direction from the pole piece inlet to the pole piece outlet.

In practical application, the pole piece 100 enters the inside of the box 12 through the pole piece inlet and comes out from the pole piece outlet after passing through the conveying device, and the heating module 133 of the air nozzle 13 can heat the front surface of the pole piece 100, so that the drying of the pole piece 100 can be realized, and after air blown out through the air inlet slit 1327 of the air nozzle 13 is mixed with NMP steam and water vapor evaporated in the drying process of the pole piece 100, the air can be discharged through the air exhaust slit 1328, the air exhaust cavity 1324 and the air exhaust outlet 1326. Compared with the prior art, the heating module 133 arranged on the upper air nozzle 13 can heat and dry the front surface of the pole piece 100, a ship body structure is not required to be arranged in the box body 12, a heating bag or a heat exchanger for heating air is not required to be arranged outside the box body 12, the structure of the oven is simplified, the volume of the oven is reduced, the occupied space of the oven is small, the equipment maintenance cost is reduced, and through the air inlet 1325, the air outlet 1326, the air inlet cavity 1322, the air outlet cavity 1324, the air inlet slit 1327 and the air outlet slit 1328 arranged on the upper air nozzle 13, an air circulation is formed between each upper air nozzle 13 and the pole piece 100, and NMP steam and water steam evaporated in a region between the heating module 133 and the pole piece 100 can be taken away in time through the air circulation, so that NMP steam and water vapor evaporated by drying can be discharged to the outside of the box body 12 in time, and the drying efficiency is improved.

In this embodiment, an end of the power line 1337 of each of the upwind nozzles 13 remote from the laser chip set 1332 protrudes beyond the top end of the case 12 and is electrically connected to an external controller. The end of the water inlet pipe 1335 of each upwind nozzle 13, which is far from the cooling channel, extends out of the top end of the box body 12 and is connected with a water circulation system. The return pipe 1336 of each upwind nozzle 13 has one end thereof remote from the cooling channel protruding beyond the top end of the tank 12 and being connected to the water circulation system.

The air inlet 1325 of each upper tuyere 13 is connected with an upper fresh air pipeline through a first pipeline respectively, one end of the upper fresh air pipeline is closed, the other end of the upper fresh air pipeline extends out of the rear side of the box body 12 and is connected with an upper fresh air fan, and the rear side of the box body 12 is provided with a first through hole for the other end of the upper fresh air pipeline to extend out. In practical application, under the action of the upper fresh air blower, external air can enter the air inlet 1325 of the corresponding upper air nozzle 13 through the upper fresh air pipeline and the first pipeline, and then enter the air inlet cavity 1322 through the air inlet 1325. The air outlet 1326 of each upper air nozzle 13 is connected with an upper air return pipeline through a second pipeline respectively, one end of the upper air return pipeline is closed, the other end of the upper air return pipeline extends out of the rear side of the box body 12 and is connected with an upper exhaust fan, and the rear side of the box body 12 is provided with a second through hole for the other end of the upper air return pipeline to extend out. In practical application, the mixture of the air discharged through the air outlet 1326 of the upper air nozzle 13, the NMP steam and the water vapor which are evaporated by drying can enter the upper return air pipeline through the second pipeline, and then be discharged from the upper return air pipeline under the action of the upper exhaust fan.

The air gates are arranged at the air inlet 1325 and the air outlet 1326, the air gate at the air inlet 1325 can adjust the air speed at the air inlet 1325 of the upper air nozzle 13, and the air gate at the air outlet 1326 can adjust the air speed at the air outlet 1326 of the upper air nozzle 13.

In other embodiments, the air inlet 1325 of each air inlet 13 is connected to an upper air inlet pipe, and one end of the upper air inlet pipe away from the corresponding air inlet 1325 extends out of the rear side of the box 12 and is provided with an upper air inlet fan, and the rear side of the box 12 is provided with a third through hole extending out of one end of the upper air inlet pipe away from the corresponding air inlet 1325. In practical application, under the action of the upper inlet fan, external air can enter the air inlet 1325 of the upper tuyere 13 through the upper air inlet pipeline and then enter the air inlet cavity 1322. The exhaust outlet 1326 of each upper air nozzle 13 is respectively connected with an upper exhaust pipeline, one end of the upper exhaust pipeline, which is far away from the corresponding exhaust outlet 1326, extends out of the rear side of the box body 12 and is provided with an upper exhaust fan, and the rear side of the box body 12 is provided with a fourth through hole, which is used for extending out of one end of the upper exhaust pipeline, which is far away from the corresponding exhaust outlet. In practical application, the mixture of air discharged through the air outlet 1326 of the upper air nozzle 13, NMP steam and water vapor evaporated by drying can enter the upper air exhaust pipeline and then be discharged from the upper air exhaust pipeline under the action of the upper air exhaust fan. The wind speed and the wind quantity at the air inlet 1325 of the upper air nozzle 13 can be adjusted through the upper air inlet fan, and the wind speed and the wind quantity at the air outlet 1326 of the upper air nozzle 13 can be adjusted through the upper air outlet fan. By the structure, the wind speed and the wind quantity of the air inlet and the wind speed and the wind quantity of the air outlet of each upper tuyere 13 can be independently controlled.

The conveying device comprises a plurality of carrier rollers 15 rotatably arranged in the box body 12, and the plurality of carrier rollers 15 are sequentially arranged at intervals along the direction from the pole piece inlet to the pole piece outlet. In practical application, the pole piece 100 passes over a plurality of carrier rollers 15, the pole piece 100 can be supported by the plurality of carrier rollers 15, and the pole piece 100 can be conveyed by the rotation of the plurality of carrier rollers 15. The number of the carrier rollers 15 can be set according to practical situations.

Referring to fig. 5, an alternative to the oven according to the present utility model is shown. In this scheme, the inside conveyor that does not set up of box 12 of oven, except being provided with a plurality of last tuyere 13 in the box 12 of this scheme, still be provided with a plurality of down tuyeres 16.

Specifically, a plurality of downwind nozzles 16 are located below pole piece 100. The plurality of downwind nozzles 16 are connected in sequence in a direction from the pole piece inlet to the pole piece outlet. The plurality of lower tuyeres 16 are in one-to-one correspondence with the plurality of upper tuyeres 13. The structure of the lower tuyere 16 is the same as that of the upper tuyere 13, and the lower tuyere 16 and the corresponding upper tuyere 13 are arranged symmetrically up and down, so that the structure of the lower tuyere 16 is not repeated here. A plurality of downtuyeres 16 are provided at the top end of the downtuyeres mounting plate 17. The manner in which the plurality of lower tuyeres 16 are disposed at the top end of the lower tuyere mounting plate 17 is the same as the manner in which the plurality of upper tuyeres 13 are disposed at the bottom end of the upper tuyere mounting plate 14, and will not be repeated here.

In practical application, the pole piece 100 passes through between the upper air nozzles 13 and the lower air nozzles 16, and the front and the back of the pole piece 100 can be heated and dried respectively through the upper air nozzles 13 and the lower air nozzles 16, so that the scheme is mainly applied to equipment for carrying out double-sided coating on the pole piece 100. The technical effect the scheme can achieve is the same as that of the scheme. In addition, by adjusting the wind speed of the air inlets 1325 of the plurality of downwind nozzles 16, the air blown out from the air inlet slits 1327 can make the pole piece 100 float, and thus the pole piece 100 can be floatingly dried.

The air inlet 1325 of each lower tuyere 16 is connected with a lower fresh air pipeline through a first pipeline respectively, one end of the lower fresh air pipeline is closed, the other end of the lower fresh air pipeline extends out of the rear side of the box body 12 and is connected with a lower fresh air fan, and a fifth through hole for extending out of the other end of the lower fresh air pipeline is formed in the rear side of the box body 12. In practical application, under the action of the lower fresh air blower, external air can enter the air inlet 1325 of the corresponding lower tuyere 16 through the lower fresh air pipeline and the first pipeline, and then enter the air inlet cavity 1322 through the air inlet 1325. The air outlet 1326 of each lower air nozzle 13 is connected with a lower air return pipeline through a second pipeline respectively, one end of the lower air return pipeline is closed, the other end of the lower air return pipeline extends out of the rear side of the box body 12 and is connected with a lower exhaust fan, and a sixth through hole for extending out of the other end of the lower air return pipeline is formed in the rear side of the box body 12. In practical application, the mixture of the air discharged through the air outlet 1326 of the lower air nozzle 16, the NMP steam and the water vapor evaporated by drying can enter the lower return air pipeline through the second pipeline, and then be discharged from the lower return air pipeline under the action of the lower air exhaust fan.

The air inlet 1325 and the air outlet 1326 of the lower air nozzle 16 can be provided with air gates, and the air speed of the air inlet and the air speed of the air outlet of the lower air nozzle 16 can be adjusted through the air gates of the air inlet 1325 and the air gate of the air outlet 1326.

In other embodiments, the air inlet 1325 and the air outlet 1326 of each air outlet 16 may be connected to a lower air inlet pipe and a lower air outlet pipe, respectively. One end of the lower air inlet pipe away from the corresponding air inlet 1325 extends out of the rear side of the box body 12 and is provided with a lower air inlet fan, and the rear side of the box body 12 is provided with a seventh through hole for the lower air inlet pipe to extend out of one end of the lower air inlet pipe away from the corresponding air inlet 1325. One end of the lower exhaust duct, which is far away from the corresponding exhaust port 1326, extends out of the rear side of the case 12 and is provided with a lower exhaust fan, and the rear side of the case 12 is provided with an eighth through hole for the lower exhaust duct, which is far away from the corresponding exhaust port 1326, to extend out. In practical application, under the action of the lower air inlet fan, external air can enter the air inlet 1325 of the lower air nozzle 16 through the lower air inlet pipeline, then enter the air inlet cavity 1322, and the mixture of air discharged through the air outlet 1326 of the lower air nozzle 16, NMP steam and water vapor evaporated by drying can enter the lower air exhaust pipeline, and then be discharged from the lower air exhaust pipeline under the action of the lower air exhaust fan. The air speed and the air quantity at the air inlet 1325 of the lower air nozzle 16 can be adjusted through the lower air inlet fan, and the air speed and the air quantity at the air outlet 1326 of the lower air nozzle 16 can be adjusted through the lower air outlet fan. By the structure, the wind speed and the wind quantity of the air inlet and the wind speed and the wind quantity of the air outlet of each air outlet nozzle 16 can be independently controlled.

Further, the oven further comprises a plurality of air-floating rollers for carrying out suspension support on the pole piece 100, and the plurality of air-floating rollers are sequentially arranged at intervals along the direction from the pole piece inlet to the pole piece outlet. An air-floating roller is respectively arranged above the two adjacent downcomers 16. The number of the air floating rollers can be set according to actual conditions. During practical application, the pole piece 100 passes through the upper parts of the air floating rollers, and the floating pole piece 100 can be supported in a suspension manner through the air floating rollers, so that the pole piece 100 is supported in an auxiliary manner, the slurry coated on the back side of the pole piece 100 can be prevented from being in direct contact with the slurry coated on the back side of the pole piece 100, the slurry coated on the back side of the pole piece 100 is not damaged, and the quality of the coating on the back side of the pole piece 100 is ensured.

While the preferred embodiment of the present utility model has been described in detail, the present utility model is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model, and the equivalent modifications or substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims

1. The utility model provides an oven, includes the box and sets up a plurality of upward wind mouths in the box, one side of box is equipped with the pole piece entry that supplies the pole piece to enter into the box inside, and the opposite side is equipped with the pole piece export that supplies the pole piece to come out from the inside of box, a plurality of upward wind mouths are located the top of pole piece, a serial communication port, upward wind mouths include the casing, the casing has air inlet chamber, installation cavity and chamber of airing exhaust, air inlet chamber, installation cavity and chamber of airing exhaust are followed pole piece entry to pole piece export's direction sets gradually, one side of casing is equipped with air intake and air outlet, air intake and air outlet respectively with air inlet chamber and chamber intercommunication of airing exhaust, be equipped with heating module in the installation cavity, the bottom of casing orientation pole piece and be equipped with air inlet slit, opening and slit of airing exhaust, air inlet slit and respectively with air inlet chamber, installation cavity intercommunication, air inlet slit and all orientation between heating module and the pole piece.

2. The oven according to claim 1, wherein the air inlet of each upper tuyere is connected with an upper fresh air pipeline through a first pipeline respectively, one end of the upper fresh air pipeline is closed, the other end of the upper fresh air pipeline extends out of the box body and is connected with an upper fresh air fan, the air outlet of each upper tuyere is connected with an upper return air pipeline through a second pipeline respectively, one end of the upper return air pipeline is closed, and the other end of the upper return air pipeline extends out of the box body and is connected with an upper exhaust fan.

3. Oven according to claim 2, characterized in that the air inlet and the air outlet are provided with dampers.

4. The oven according to claim 1, wherein the air inlet of each upper tuyere is respectively connected with an upper air inlet pipeline, one end of the upper air inlet pipeline, which is far away from the corresponding air inlet, extends out of the box body and is provided with an upper air inlet fan, the air outlet of each upper tuyere is respectively connected with an upper air exhaust pipeline, and one end of the upper air exhaust pipeline, which is far away from the corresponding air outlet, extends out of the box body and is provided with an upper air exhaust fan.

5. The oven of claim 1, wherein the heating module is a laser heating module or an infrared lamp.

6. The oven of claim 1, further comprising a conveyor for conveying the pole pieces, the conveyor comprising a plurality of idlers rotatably disposed within the housing, the plurality of idlers being sequentially spaced in a direction from the pole piece inlet to the pole piece outlet.

7. The oven of claim 1, further comprising a plurality of downtuyeres positioned below the pole piece and in one-to-one correspondence with the plurality of uptuyeres, wherein the downtuyeres have the same structure as the uptuyeres, and the downtuyeres and the corresponding uptuyeres are arranged in an up-down symmetry.

8. The oven of claim 7, further comprising a plurality of air-bearing rollers for levitation support of the pole pieces.

9. The utility model provides a wind nozzle, its characterized in that, includes the casing, the casing has air inlet chamber, installation cavity and chamber of airing exhaust, air inlet chamber, installation cavity and chamber of airing exhaust set gradually, one side of casing is equipped with air intake and air exit, air intake and air exit respectively with air inlet chamber and chamber of airing exhaust intercommunication, the installation intracavity is equipped with heating module, the bottom of casing is equipped with air inlet slit, opening and slit of airing exhaust towards the pole piece, air inlet slit, opening and slit of airing exhaust respectively with air inlet chamber, installation cavity and chamber of airing exhaust intercommunication, air inlet slit and slit of airing exhaust all face the region between heating module and the pole piece.

10. The tuyere of claim 9, wherein the heating module is a laser heating module or an infrared lamp tube.