CN219348789U - Drying detection system and baking system suitable for pole piece - Google Patents

Drying detection system and baking system suitable for pole piece Download PDF

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Publication number
CN219348789U
CN219348789U CN202223166337.9U CN202223166337U CN219348789U CN 219348789 U CN219348789 U CN 219348789U CN 202223166337 U CN202223166337 U CN 202223166337U CN 219348789 U CN219348789 U CN 219348789U
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China
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pole piece
gas
negative pressure
detection system
pressure gas
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CN202223166337.9U
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Chinese (zh)
Inventor
段绍刚
李玉亮
叶逢贵
吴仕明
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Rept Battero Energy Co Ltd
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Rept Battero Energy Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides a drying detection system and a baking system suitable for pole pieces, comprising: a control system; the negative pressure gas-collecting hood is arranged at the downstream of the pole piece baking oven, and the opening of the negative pressure gas-collecting hood faces the pole piece conveying path of the pole piece; the air exhaust system comprises an air suction power device and an air transmission pipeline, one end of the air transmission pipeline along the self extending direction is communicated with the negative pressure gas collection cover, and the other end of the air transmission pipeline is communicated with the air suction power device; the detection end of the gas concentration detector extends into the gas pipeline to detect the concentration of the slurry solvent vapor volatilized by the pole piece, and the gas concentration detector is in communication connection with the control system; and the detection information output assembly is in communication connection with the control system. The utility model can monitor the dryness of the pole piece in real time in the coating production process, is convenient for workers to find whether the pole piece reaches the drying standard or not, and improves the product percent of pass.

Description

Drying detection system and baking system suitable for pole piece
Technical Field
The utility model relates to the technical field of pole piece processing technology, in particular to a drying detection system and a baking system suitable for pole pieces.
Background
The wet film pole piece coated by the pole piece enters a baking box for drying, whether the pole piece is completely dried or not can be judged after the weight loss rate of the pole piece is tested after the pole piece is rolled down, and irrecoverable loss is easily caused by hysteresis in the testing process on continuous production materials; when abnormality occurs, such as when the thickness of the coating film is thicker and does not match the current baking parameters, or when the temperature of the baking oven indirectly fails to reach the standard (the alarm upper limit is not exceeded), the film baking failure is easy to be caused.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present utility model is to provide a drying detection system and a baking system suitable for pole pieces, which can monitor the drying degree of the pole pieces in real time during the coating production process, so that the staff can find out whether the pole pieces reach the drying standard in time, and the product yield is improved.
In order to solve the above technical problems, the present utility model provides a drying detection system suitable for pole pieces, including:
a control system;
the negative pressure gas-collecting hood is arranged at the downstream of the pole piece baking oven, and the opening of the negative pressure gas-collecting hood faces the pole piece conveying path of the pole piece;
the air exhaust system comprises an air suction power device and an air transmission pipeline, one end of the air transmission pipeline along the self extending direction is communicated with the negative pressure gas collection cover, and the other end of the air transmission pipeline is communicated with the air suction power device;
the detection end of the gas concentration detector extends into the gas pipeline to detect the concentration of the slurry solvent vapor volatilized by the pole piece, and the gas concentration detector is in communication connection with the control system;
and the detection information output assembly is in communication connection with the control system.
Preferably, the drying detection system suitable for the pole piece further comprises a pole piece pressing roller in rolling fit with the pole piece, and the pole piece pressing roller is rotatably arranged between the negative pressure gas-collecting hood and the pole piece conveying path.
Preferably, the drying detection system suitable for the pole piece further comprises a pole piece deviation correcting system, and the pole piece deviation correcting system is used for adjusting the pole piece conveying path.
Preferably, the gas concentration detector comprises a detector main body and a gas-sensitive probe, wherein the detector main body is positioned outside the gas pipeline and is in communication connection with the control system, and the gas-sensitive probe is in communication connection with the detector main body and penetrates into the gas pipeline.
Preferably, the suction power device is an exhaust fan.
Preferably, the detection information output component includes one or more of the following: indicator light, annunciator and display screen.
Preferably, the negative pressure gas-collecting channel further comprises a gas outlet communicated with the gas pipeline, and the flow cross section of the negative pressure gas-collecting channel gradually becomes smaller along the direction from the open port to the gas outlet.
Preferably, the control system comprises an information receiving module, a central processing module and an information sending module which are sequentially in communication connection, wherein the information receiving module is in communication connection with the gas concentration detector, and the information sending module is in communication connection with the detection information output assembly.
The utility model also provides a baking system which comprises the drying detection system suitable for the pole piece and a pole piece baking box.
As described above, the drying detection system and the baking system suitable for the pole piece provided by the utility model have the following beneficial effects: the negative pressure gas-collecting channel is arranged at the downstream of the pole piece baking oven. The open port of the pressure gas-collecting hood faces to the pole piece conveying path of the pole piece, so that the evaporated slurry solvent vapor of the pole piece can be effectively collected. The air extraction system comprises a suction power device and an air transmission pipeline, one end of the air transmission pipeline along the extending direction of the air transmission pipeline is communicated with the negative pressure air collection cover, the other end of the air transmission pipeline is communicated with the suction power device, under the action of the suction power device, negative pressure is formed in a cover cavity of the negative pressure air collection cover, and then air at the periphery of the pole piece sequentially flows through the negative pressure air collection cover, the air transmission pipeline and the suction power device and is finally discharged to a preset area. The detection end of the gas concentration detector extends into the gas pipeline to detect the concentration of the slurry solvent vapor volatilized by the pole piece, the gas concentration detector is in communication connection with the control system, and the detection information output assembly is in communication connection with the control system. If the pole piece which is baked at high temperature and is not dried completely can emit more slurry solvent vapor after the pole piece is discharged out of the box body outlet, the slurry solvent vapor is pumped away by the negative pressure gas collecting hood, and the gas concentration detector can test the concentration value of the slurry solvent vapor in the process of flowing through the gas pipeline; and then, the control system acquires the concentration value of the solvent vapor of the slurry in real time, and judges whether the concentration value of the solvent vapor of the slurry exceeds a warning value or not through a preset embedded program. When the concentration value of the solvent vapor of the slurry is larger than the warning value, the detection information output assembly sends a warning signal to a worker to prompt that the dryness of the pole piece does not reach the standard. Therefore, the drying detection system and the baking system suitable for the pole piece can monitor the drying degree of the pole piece in real time in the coating production process, so that workers can conveniently find whether the pole piece reaches the drying standard or not in time, and the product qualification rate is improved.
Drawings
FIG. 1 is a schematic view of a baking system of the present utility model;
FIG. 2 shows a first schematic diagram of a dryness detection system for pole pieces according to the present utility model;
fig. 3 shows a second schematic view of a dryness detection system for pole pieces according to the present utility model.
Description of element reference numerals
1. Negative pressure gas collecting hood
11. Open mouth
12. Air outlet
2. Air extraction system
21. Suction power device
22. Gas pipeline
3. Gas concentration detector
31. Detector body
32. Gas-sensitive probe
4. Detection information output assembly
41. Indicating lamp
42. Sounding device
43. Display screen
5. Pole piece baking oven
51. Box outlet
6. Pole piece
7. Pole piece compression roller
8. Pole piece deviation rectifying system
81. Deviation correcting offset roller
82. Flattening roller
83. Flattening roller passing movable arm
Detailed Description
Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.
It should be understood that the structures, proportions, sizes, etc. shown in the drawings are for the purpose of understanding and reading the disclosure, and are not intended to limit the scope of the utility model, which is defined by the appended claims, but rather by the claims, unless otherwise indicated, and unless otherwise indicated, all changes in structure, proportions, or otherwise, used by those skilled in the art, are included in the spirit and scope of the utility model. Also, the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like recited in the present specification are merely for descriptive purposes and are not intended to limit the scope of the utility model, but are intended to provide relative positional changes or modifications without materially altering the technical context in which the utility model may be practiced.
Through the verification of the inventor in actual production and manufacture: as shown in fig. 1, after the pole piece is completely dried in pole piece oven 5, the air in zone a is free or should not have slurry solvent vapor present. For example, for positive pole pieces, the positive pole slurry solvent is NMP, and after heating in a baking oven, the pole piece temperature is generally higher (more than 100 ℃) just when the pole piece is out of the baking oven, and at this time, the residual part of NMP in the positive pole piece can volatilize rapidly, so that irritating NMP vapor appears in the small environment of the baking oven.
Based on the above, the drying detection system suitable for the pole piece 6 (namely the pole piece subjected to the baking treatment of the pole piece baking oven 5) is additionally arranged near the box body outlet 51 of the pole piece baking oven 5, so that the weight loss rate condition of the pole piece 6 can be rapidly judged, a worker can conveniently adjust a coating machine or the pole piece baking oven in time, the product quality is controlled, and the loss of the pole piece is reduced.
As shown in fig. 1, 2 and 3, the present utility model provides a drying detection system for pole pieces, comprising:
a control system;
the negative pressure gas-collecting hood 1, the negative pressure gas-collecting hood 1 locates at the downstream of pole piece oven 5, and the open mouth 11 of the negative pressure gas-collecting hood 1 is towards the pole piece conveying path of pole piece 6;
the air extraction system 2 comprises an air extraction power device 21 and an air pipeline 22, wherein one end of the air pipeline 22 along the self extending direction is communicated with the negative pressure gas collection cover 1, and the other end of the air pipeline 22 is communicated with the air extraction power device 21;
the detection end of the gas concentration detector 3 extends into the gas pipeline 22 to detect the concentration of the slurry solvent vapor volatilized by the pole piece 6, and the gas concentration detector 3 is connected with a control system in a communication way;
the detection information output assembly 4, the detection information output assembly 4 is connected with the control system in a communication way.
In the present utility model, the negative pressure gas-collecting hood 1 is disposed downstream of the pole piece baking oven 5, and is generally disposed near the box outlet 51 of the pole piece baking oven 5, for example, the space between the negative pressure gas-collecting hood 1 and the box outlet 51 is about 1 m. The open mouth 11 of the negative pressure gas-collecting channel 1 faces the pole piece conveying path of the pole piece 6, so that the evaporated slurry solvent vapor of the pole piece 6 can be effectively collected.
In the utility model, the air extraction system 2 comprises a suction power device 21 and an air pipeline 22, one end of the air pipeline 22 along the self extending direction is communicated with the negative pressure gas collecting hood 1, the other end of the air pipeline 22 is communicated with the suction power device 21, under the action of the suction power device 21, negative pressure is formed in the hood cavity of the negative pressure gas collecting hood 1, and then air at the periphery of the pole piece 6 sequentially flows through the negative pressure gas collecting hood 1, the air pipeline 22 and the suction power device 21 and is finally discharged to a preset area.
In the utility model, the detection end of the gas concentration detector 3 extends into the gas pipeline 22 to detect the concentration of the slurry solvent vapor volatilized by the pole piece 6, the gas concentration detector 3 is in communication connection with a control system, and the detection information output component 4 is in communication connection with the control system. If the pole piece 6 which is baked at high temperature and is not dried completely emits more slurry solvent vapor after exiting the box outlet 51, the slurry solvent vapor is pumped away by the negative pressure gas collecting hood 1, and the gas concentration detector 3 can test the concentration value of the slurry solvent vapor in the process of flowing through the gas pipeline 22; and then, the control system acquires the concentration value of the solvent vapor of the slurry in real time, and judges whether the concentration value of the solvent vapor of the slurry exceeds a warning value or not through a preset embedded program. When the concentration value of the solvent vapor of the slurry is larger than the warning value, the detection information output assembly 4 sends a warning signal to a worker to prompt that the dryness of the pole piece 6 does not reach the standard.
Therefore, the drying detection system suitable for the pole piece can monitor the drying degree of the pole piece 6 in real time in the coating production process, so that workers can conveniently find out whether the pole piece 6 reaches the drying standard or not in time, and the product qualification rate is improved.
In general, the opening 11 of the negative pressure gas-collecting hood 1 is vertically aligned downward to the pole piece conveying path. Because the negative pressure in the cover cavity of the negative pressure gas-collecting channel 1 is larger, the adsorption effect can be generated on the pole piece 6, based on the negative pressure gas-collecting channel, the drying detection system suitable for the pole piece further comprises a pole piece press roller 7 in rolling fit with the pole piece 6, and the pole piece press roller 7 is rotationally arranged between the negative pressure gas-collecting channel 1 and a pole piece conveying path of the pole piece 6, so that the pole piece 6 can be prevented from shaking greatly or being sucked and broken by the negative pressure gas-collecting channel 1.
In order to adjust the pole piece conveying path of the pole piece 6, the drying detection system suitable for the pole piece further comprises a pole piece deviation correcting system 8, and the pole piece deviation correcting system 8 is used for adjusting the pole piece conveying path.
The pole piece deviation correcting system includes a position sensor (not shown) and a deviation correcting and offset roller 81, the position sensor and the deviation correcting and offset roller 81 are respectively connected with the control system, the position sensor is used for detecting the edge position of the pole piece 6 and sending the edge position of the pole piece 6 to the control system, and the control system calculates the offset with the straightness of the whole machine according to the edge position of the pole piece 6 and then corrects and adjusts the pole piece transmission path by controlling the deviation correcting and offset roller 81 so as to ensure the reliability of the pole piece transmission path.
Further, the pole piece deviation rectifying system 8 may further include a flattening roller 82 and a flattening roller moving arm 83, where the flattening roller 82 presses the pole piece 6 under the driving of the flattening roller moving arm 83, so as to reduce the increase of the deviation caused by the shake of the pole piece 6.
Under the combined action of the pole piece press roller 7 and the pole piece deviation correcting system 8 on the pole piece, the pole piece 6 can be prevented from being sucked off or shaking greatly by the negative pressure gas collecting hood 1 at the position of the negative pressure gas collecting hood, and the accuracy of a pole piece transmission path of the pole piece 6 in the backward transmission process is further ensured.
As shown in fig. 2, in order to detect the concentration of the slurry solvent vapor in the gas line 22, the gas concentration detector 3 includes a detector body 31 and a gas-sensitive probe 32, wherein the detector body 31 is located outside the gas line 22 and is communicatively connected to a control system, and the gas-sensitive probe 32 is communicatively connected to the detector body 31 and is inserted into the gas line 22.
As an example of the suction power device 21, the suction power device 21 is an exhaust fan, which can reduce manufacturing costs.
As shown in fig. 3, the detection information output unit 4 includes an indicator lamp 41 for emitting an optical signal to the detection information output unit 4. For example, a three-color signal lamp.
In order to make the detection information output unit 4 emit an audio signal, the detection information output unit 4 includes a sounder 42. For example a buzzer alarm.
In order for the worker to read the density data, the above-described detection information output unit 4 includes a display screen 43. The display 43 may be a display that is self-contained with the coater.
As shown in fig. 3, in order to further facilitate the collection of gas, the negative pressure gas collecting housing 1 further includes a gas outlet 12 communicating with the gas pipe 22, and the flow cross section of the negative pressure gas collecting housing 1 gradually decreases in a direction from the opening 11 to the gas outlet 12.
The control system may be a self-contained system of the coater. The control system comprises an information receiving module, a central processing module and an information sending module which are sequentially in communication connection, wherein the information receiving module is in communication connection with the gas concentration detector 3, and the information sending module is in communication connection with the detection information output assembly 4. In the central processing module, a program for acquiring detection data of the gas concentration detector 3 through the information receiving module is required to be installed in advance, a program for giving an alarm when upper limit alarm or test data are required to be designed, and the detection result is fed back to the detection information output assembly 4 in real time through the information sending module; for example, the display screen 43 is caused to display the density data in real time.
In summary, the utility model is suitable for the drying detection system of the pole piece, can monitor the drying degree of the pole piece in real time in the coating production process, is convenient for workers to find out whether the pole piece reaches the drying standard in time, and improves the product qualification rate. Therefore, the utility model effectively overcomes various defects in the prior art and has high industrial utilization value.
The embodiment of the present utility model further provides a baking system, which includes the drying detection system suitable for the pole piece provided in any of the above embodiments, and the pole piece baking oven 5, and the content and effects of the drying detection system may refer to the above embodiments, which are not repeated herein.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims (9)

1. A dry detection system for pole pieces, comprising:
a control system;
the negative pressure gas-collecting hood (1), the negative pressure gas-collecting hood (1) locates at the downstream of pole piece oven (5), and the open mouth (11) of the negative pressure gas-collecting hood (1) is towards the pole piece conveying path of the pole piece (6);
the air extraction system (2), the air extraction system (2) comprises a suction power device (21) and an air delivery pipeline (22), one end of the air delivery pipeline (22) along the self extending direction is communicated with the negative pressure gas collection cover (1) and the other end is communicated with the suction power device (21);
the detection end of the gas concentration detector (3) stretches into the gas pipeline (22) to detect the concentration of the slurry solvent vapor volatilized by the pole piece (6), and the gas concentration detector (3) is in communication connection with the control system;
and the detection information output assembly (4), and the detection information output assembly (4) is in communication connection with the control system.
2. The dryness detection system for pole pieces according to claim 1, wherein: the drying detection system suitable for the pole piece further comprises a pole piece pressing roller (7) in rolling fit with the pole piece (6), and the pole piece pressing roller (7) is rotatably arranged between the negative pressure gas-collecting hood (1) and the pole piece conveying path.
3. The dryness detection system for pole pieces according to claim 1, wherein: the drying detection system suitable for the pole piece further comprises a pole piece deviation correcting system (8), and the pole piece deviation correcting system (8) is used for adjusting the pole piece conveying path.
4. A dryness detection system for pole pieces according to any one of claims 1 to 3, wherein: the gas concentration detector (3) comprises a detector main body (31) and a gas-sensitive probe (32), wherein the detector main body (31) is positioned outside the gas pipeline (22) and is in communication connection with the control system, and the gas-sensitive probe (32) is in communication connection with the detector main body (31) and penetrates into the gas pipeline (22).
5. The dryness detection system for pole pieces according to claim 1, wherein: the suction power device (21) is an exhaust fan.
6. The dryness detection system for pole pieces according to claim 1, wherein: the detection information output component (4) comprises one or more of the following: an indicator lamp (41), a signaling device (42) and a display screen (43).
7. A dryness detection system for pole pieces according to any one of claims 1 to 3, wherein: the negative pressure gas-collecting hood (1) further comprises a gas outlet (12) communicated with the gas transmission pipeline (22), and the flow section of the negative pressure gas-collecting hood (1) is gradually reduced along the direction from the open port (11) to the gas outlet (12).
8. A dryness detection system for pole pieces according to any one of claims 1 to 3, wherein: the control system comprises an information receiving module, a central processing module and an information sending module which are sequentially connected in a communication mode, wherein the information receiving module is connected with the gas concentration detector (3) in a communication mode, and the information sending module is connected with the detection information output assembly (4) in a communication mode.
9. A baking system, characterized by comprising a drying detection system for pole pieces according to any of claims 1-8, and a pole piece baking oven (5).
CN202223166337.9U 2022-11-28 2022-11-28 Drying detection system and baking system suitable for pole piece Active CN219348789U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202223166337.9U CN219348789U (en) 2022-11-28 2022-11-28 Drying detection system and baking system suitable for pole piece

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202223166337.9U CN219348789U (en) 2022-11-28 2022-11-28 Drying detection system and baking system suitable for pole piece

Publications (1)

Publication Number Publication Date
CN219348789U true CN219348789U (en) 2023-07-14

Family

ID=87075146

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202223166337.9U Active CN219348789U (en) 2022-11-28 2022-11-28 Drying detection system and baking system suitable for pole piece

Country Status (1)

Country Link
CN (1) CN219348789U (en)

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