CN114294949B - Intelligent control method for roller kiln, computer equipment and readable storage medium - Google Patents
Intelligent control method for roller kiln, computer equipment and readable storage medium Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 238000003860 storage Methods 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 87
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000004321 preservation Methods 0.000 claims abstract description 24
- 239000011229 interlayer Substances 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000000630 rising effect Effects 0.000 abstract description 12
- 230000001276 controlling effect Effects 0.000 description 11
- 230000006872 improvement Effects 0.000 description 7
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 229910052744 lithium Inorganic materials 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an intelligent control method of a roller kiln, which comprises a heating kiln zone, a heat preservation kiln zone and a cooling kiln zone which are sequentially arranged, wherein the intelligent control method of the roller kiln comprises the following steps: in the temperature rising kiln zone, acquiring air pressure information in the temperature rising kiln zone in real time, and controlling the working state of a first fan in the temperature rising kiln zone according to the air pressure information so as to adjust the temperature in the temperature rising kiln zone; in the cooling kiln zone, temperature information in the cooling kiln zone is acquired in real time, and the working state of a second fan in the interlayer in the cooling kiln zone is controlled according to the temperature information, so that hot air in the interlayer is exchanged with external cold air, and the temperature in the cooling kiln zone is adjusted. The invention also discloses a computer device and a computer readable storage medium. The invention can realize the effective control of the temperature and the air pressure in the roller kiln, and has strong flexibility and high accuracy.
Description
Technical Field
The invention relates to the technical field of roller kilns, in particular to an intelligent control method of a roller kiln, computer equipment and a computer readable storage medium.
Background
Along with the development of technology, the demand of lithium batteries is continuously increased, and kiln demands of people for high productivity, high efficiency and low energy consumption are more and more urgent. The roller kiln has the advantages of simple structure, continuous production and high productivity, so the roller kiln is adopted by vast lithium batteries and manufacturers all the time.
The roller kiln is a typical continuous kiln and consists of a preheating section, a firing section and a cooling section. During operation, the lithium battery is placed on the roller rod, and blanks are preheated, burned and cooled in sequence through continuous rotation of the roller rod, so that the quality of temperature control in the roller kiln directly influences the quality of a final product.
In the prior art, the firing temperature control of lithium batteries in roller kilns is a typical large time delay closed loop system, and the time delay is represented by time delay of controlled parameters (such as temperature, flow and the like). The existence of the delay link enables the controlled temperature signal to be reflected after a period of time, so that the regulated quantity (such as gas flow, air flow and the like) cannot respond to the execution action of the temperature signal in time. Therefore, the roller kiln firing temperature control system has the characteristics of large time constant and serious hysteresis, and has complex and variable influencing factors, such as improper control, yield and energy waste which seriously influence the firing quality of ceramic products.
Disclosure of Invention
The invention aims to solve the technical problems of providing an intelligent control method, computer equipment and a computer readable storage medium for a roller kiln, which can realize effective control of temperature and air pressure in the roller kiln, and has strong flexibility and high accuracy.
In order to solve the technical problems, the invention provides an intelligent control method of a roller kiln, which comprises a heating kiln zone, a heat preservation kiln zone and a cooling kiln zone which are sequentially arranged, wherein the intelligent control method of the roller kiln comprises the following steps: acquiring air pressure information in the heating kiln zone in real time in the heating kiln zone, and controlling the working state of a first fan in the heating kiln zone according to the air pressure information so as to adjust the temperature in the heating kiln zone; in the cooling kiln zone, temperature information in the cooling kiln zone is collected in real time, and the working state of a second fan in an interlayer in the cooling kiln zone is controlled according to the temperature information, so that hot air in the interlayer is exchanged with external cold air, and the temperature in the cooling kiln zone is adjusted.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises: and driving the water cooling pipe in the cooling kiln zone according to the temperature information so as to adjust the temperature in the cooling kiln zone.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises: and driving the heating rod in the cooling kiln zone according to the temperature information so as to adjust the temperature in the cooling kiln zone.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises: when the roller kiln is empty, a third fan arranged in the cooling kiln zone is started, so that hot air in the cooling kiln zone is exchanged with external cold air, and the temperature in the cooling kiln zone is reduced.
As an improvement of the above solution, the step of controlling the working state of the first fan in the temperature raising kiln zone according to the air pressure information to adjust the temperature in the temperature raising kiln zone includes: comparing the air pressure information with preset minimum air pressure and maximum air pressure, wherein the minimum air pressure refers to an air pressure value in a heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the minimum overheat temperature, and the maximum air pressure refers to an air pressure value in the heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the maximum overheat temperature, and when the air pressure information is smaller than or equal to the minimum air pressure, the first fan is turned off; when the air pressure information is between the minimum air pressure and the maximum air pressure, driving the first fan to operate, wherein the air pressure information is in a proportional relation with the operating power of the first fan; and driving the first fan to operate at the maximum power when the air pressure information is greater than or equal to the maximum air pressure.
As an improvement of the above scheme, according to formula T min =T+T 0 Calculating the minimum superheat temperature T min Wherein T is the target temperature of the heat preservation kiln zone, T 0 Is a temperature adjustment value and is a positive number; according to formula T max =T min + a×T 0 Calculating the maximum superheat temperature T max Wherein a is>1。
As an improvement of the above solution, the step of controlling the working state of the second fan in the interlayer in the cooling kiln zone according to the temperature information includes: comparing the temperature information with a preset minimum temperature and a preset maximum temperature, wherein when the temperature information is smaller than or equal to the minimum temperature, the second fan is turned off; when the temperature information is between the minimum temperature and the maximum temperature, driving the second fan to operate, wherein the temperature information is in a proportional relation with the operating power of the second fan; and driving the second fan to operate at the maximum power when the temperature information is greater than or equal to the maximum temperature.
As the improvement of above-mentioned scheme, all be equipped with the electric leakage transformer in rising temperature kiln district, heat preservation kiln district and the cooling kiln district, the electric leakage transformer is used for detecting the electric leakage signal.
Correspondingly, the invention also provides computer equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the intelligent control method of the roller kiln when executing the computer program.
Correspondingly, the invention further provides a computer readable storage medium, wherein the computer program is stored on the computer readable storage medium, and the computer program realizes the steps of the intelligent control method of the roller kiln when being executed by a processor.
The implementation of the invention has the following beneficial effects:
aiming at the specificity of the heating kiln zone and the cooling kiln zone, the invention adopts different monitoring modes to regulate and control the temperature, has strong flexibility and high pertinence, can effectively realize the rapid and stable control of the temperature, and particularly: in the temperature rising kiln zone, the air pressure can be detected rapidly before the temperature in the temperature rising kiln zone changes through air pressure detection, so that the working state of the first fan is controlled in advance, the temperature in the temperature rising kiln zone can be regulated more effectively, and the real-time performance is stronger; in the cooling kiln zone, because the second fan is arranged in the interlayer of the cooling kiln zone, the temperature in the cooling kiln zone steadily decreases, therefore, the working state of the second fan can be controlled through direct monitoring of the temperature, and the steady control of the temperature is further ensured.
Furthermore, the water cooling pipe and/or the heating rod are/is arranged in the cooling kiln zone so as to further regulate and control the real-time temperature in the cooling kiln zone, and the method has high pertinence and flexibility.
In addition, the invention is also provided with leakage transformers in the heating kiln zone, the heat preservation kiln zone and the cooling kiln zone, and the leakage transformers are used for detecting leakage signals.
Drawings
FIG. 1 is a flow chart of a first embodiment of the intelligent control method of the roller kiln of the present invention;
FIG. 2 is a schematic diagram of the structure of the roller kiln in the intelligent control method of the roller kiln of the invention;
FIG. 3 is a flow chart of a second embodiment of the intelligent control method of the roller kiln of the invention;
fig. 4 is a flow chart of a third embodiment of the intelligent control method of the roller kiln according to the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent. It is only stated that the terms of orientation such as up, down, left, right, front, back, inner, outer, etc. used in this document or the imminent present invention, are used only with reference to the drawings of the present invention, and are not meant to be limiting in any way.
Referring to fig. 1, fig. 1 shows a flow chart of a first embodiment of the intelligent control method of the roller kiln of the invention, comprising:
s101, acquiring air pressure information in the heating kiln zone in real time in the heating kiln zone, and controlling the working state of a first fan in the heating kiln zone according to the air pressure information so as to adjust the temperature in the heating kiln zone.
As shown in fig. 2, the roller kiln comprises a heating kiln zone 1, a heat preservation kiln zone 2 and a cooling kiln zone 3 which are sequentially communicated, wherein the heating kiln zone 1 is used for realizing rapid temperature rise, the temperature in the heat preservation kiln zone 2 is stable, and the cooling kiln zone 3 is used for realizing rapid temperature drop.
Specifically, the step of controlling the operating state of the first fan in the temperature raising kiln zone 1 according to the air pressure information to adjust the temperature in the temperature raising kiln zone 1 includes:
(1) And comparing the air pressure information with a preset minimum air pressure and a preset maximum air pressure.
In the invention, the minimum air pressure refers to the air pressure value in the heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the minimum overheat temperature. Specifically, it may be according to formula T min =T+T 0 Calculating the minimum superheat temperature T min Wherein T is the target temperature of the heat preservation kiln zone, T 0 Is a temperature adjustment value and is a positive number.
For example, when the target temperature T of the holding kiln zone is 700 DEG CTemperature adjustment value T 0 At 90 ℃, the minimum superheat temperature T min Is 790 ℃.
Correspondingly, the maximum air pressure refers to the air pressure value in the heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the maximum overheat temperature. Specifically, it may be according to formula T max =T min + a×T 0 Calculating the maximum superheat temperature T max Wherein a is>1。
For example, when the minimum superheat temperature T min At 790 ℃ and a temperature adjustment value T 0 At 90 ℃, a is 2, and the maximum superheat temperature T max Is 970 ℃.
(2) And when the air pressure information is smaller than or equal to the minimum air pressure, closing the first fan.
(3) When the air pressure information is between the minimum air pressure and the maximum air pressure, the first fan is driven to operate.
In the invention, the air pressure information is in direct proportion to the operation power of the first fan. That is, the higher the air pressure, the higher the temperature, so the operating power of the first fan can be increased to input more cold air into the heating kiln zone, so as to quickly reduce the temperature in the heating kiln zone; the lower the air pressure, the lower the temperature, so the operating power of the first fan can be reduced to input a small amount of cold air into the heating kiln zone to slowly reduce the temperature in the heating kiln zone.
(4) When the air pressure information is greater than or equal to the maximum air pressure, the first fan is driven to operate at the maximum power.
When the air pressure information is greater than or equal to the maximum air pressure, the temperature rising kiln zone is in an overtemperature state, and the first fan is required to be driven to operate at the maximum power at the moment so as to input a large amount of cold air into the temperature rising kiln zone, so that the temperature in the temperature rising kiln zone is quickly reduced.
In the prior art, the real-time control of the temperature is realized mainly by a mode of collecting the temperature. Unlike the prior art, the temperature control is realized by collecting air pressure. The air pressure change can be detected rapidly before the temperature in the heating kiln zone changes through air pressure detection, so that the working state of the first fan is controlled in advance, the temperature in the heating kiln zone can be regulated more effectively, and the real-time performance is stronger.
S102, acquiring temperature information in the cooling kiln zone in real time, and controlling the working state of a second fan in the interlayer in the cooling kiln zone according to the temperature information so as to exchange hot air in the interlayer with external cold air and adjust the temperature in the cooling kiln zone.
As shown in fig. 2, the second fan is arranged in the interlayer 31 of the cooling kiln zone 3, so that cold air is prevented from directly entering the cooling kiln zone 3, the temperature in the cooling kiln zone 3 is prevented from suddenly changing, and the temperature in the cooling kiln zone 3 is ensured to steadily decrease.
Specifically, the step of controlling the working state of the second fan in the interlayer in the cooling kiln zone according to the temperature information comprises the following steps:
(1) And comparing the temperature information with a preset minimum temperature and a preset maximum temperature.
(2) And when the temperature information is less than or equal to the minimum temperature, the second fan is turned off.
(3) And driving the second fan to operate when the temperature information is between the minimum temperature and the maximum temperature, wherein the temperature information is in direct proportion to the operating power of the second fan.
(4) And when the temperature information is greater than or equal to the maximum temperature, driving the second fan to operate at the maximum power.
It should be noted that, in the cooling kiln zone, because the second fan is arranged in the interlayer of the cooling kiln zone, the temperature in the cooling kiln zone steadily decreases, therefore, the working state of the second fan can be controlled through the direct monitoring of the temperature, thereby further ensuring the steady control of the temperature.
Therefore, the invention adopts different monitoring modes to regulate and control the temperature of the heating kiln zone and the cooling kiln zone aiming at the specificity of the heating kiln zone and the cooling kiln zone, has strong flexibility and high pertinence, and can effectively realize the rapid and stable control of the temperature.
Referring to fig. 3, fig. 3 shows a flow chart of a second embodiment of the intelligent control method of the roller kiln of the invention, comprising:
s201, acquiring air pressure information in the heating kiln zone in real time in the heating kiln zone, and controlling the working state of a first fan in the heating kiln zone according to the air pressure information so as to adjust the temperature in the heating kiln zone.
S202, acquiring temperature information in the cooling kiln zone in real time, and controlling the working state of a second fan in the interlayer in the cooling kiln zone according to the temperature information so as to exchange hot air in the interlayer with external cold air and adjust the temperature in the cooling kiln zone.
S203, driving a water cooling pipe in the cooling kiln zone according to the temperature information to adjust the temperature in the cooling kiln zone.
It should be noted that, through the water-cooled tube, the interval near the battery product can be directly cooled down locally, and the pertinence is stronger.
S204, driving a heating rod in the cooling kiln zone according to the temperature information to adjust the temperature in the cooling kiln zone.
When the temperature in the cooling kiln zone is too low, the heating rod can be driven to raise the temperature in the cooling kiln zone, so that the flexibility is high.
Therefore, unlike the first embodiment shown in fig. 1, in this embodiment, a water cooling pipe and/or a heating rod may be disposed in the cooling kiln region to further regulate and control the real-time temperature in the cooling kiln region, which is highly specific and flexible.
Referring to fig. 4, fig. 4 shows a flow chart of a third embodiment of the intelligent control method of the roller kiln of the invention, comprising:
s301, acquiring air pressure information in the heating kiln zone in real time in the heating kiln zone, and controlling the working state of a first fan in the heating kiln zone according to the air pressure information so as to adjust the temperature in the heating kiln zone.
S302, acquiring temperature information in the cooling kiln zone in real time, and controlling the working state of a second fan in the interlayer in the cooling kiln zone according to the temperature information so as to exchange hot air in the interlayer with external cold air and adjust the temperature in the cooling kiln zone.
S303, driving a water cooling pipe in the cooling kiln zone according to the temperature information to adjust the temperature in the cooling kiln zone.
S304, driving a heating rod in the cooling kiln zone according to the temperature information to adjust the temperature in the cooling kiln zone.
S305, when the roller kiln is empty, starting a third fan arranged in the cooling kiln zone so as to exchange hot air in the cooling kiln zone with external cold air and reduce the temperature in the cooling kiln zone.
When the roller kiln is empty, heat in the cooling kiln area cannot be taken away, so that the third fan can be driven to further reduce the temperature in the cooling kiln area.
Further, leakage transformers are arranged in the heating kiln zone, the heat preservation kiln zone and the cooling kiln zone, and are used for detecting leakage signals.
It should be noted that, through the leakage transformer can detect the electric leakage condition in the kiln district of rising temperature, heat preservation kiln district and the kiln district of cooling respectively, but when detecting that certain region appears the electric leakage signal, can send alarm information in real time in order to inform operating personnel to handle to guarantee roller kiln's normal use.
Correspondingly, the invention also provides computer equipment, which comprises a memory and a processor, wherein the memory stores a computer program, and the processor realizes the steps of the intelligent control method of the roller kiln when executing the computer program. Meanwhile, the invention also provides a computer readable storage medium, on which a computer program is stored, wherein the computer program realizes the steps of the intelligent control method of the roller kiln when being executed by a processor.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the invention, such changes and modifications are also intended to be within the scope of the invention.
Claims (8)
1. The intelligent control method of the roller kiln is characterized in that the roller kiln comprises a heating kiln zone, a heat preservation kiln zone and a cooling kiln zone which are sequentially arranged, and the intelligent control method of the roller kiln comprises the following steps:
acquiring air pressure information in the heating kiln zone in real time in the heating kiln zone, and controlling the working state of a first fan in the heating kiln zone according to the air pressure information so as to adjust the temperature in the heating kiln zone; the method comprises the following specific steps: comparing the air pressure information with preset minimum air pressure and maximum air pressure, wherein the minimum air pressure refers to an air pressure value in a heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the minimum overheat temperature, and the maximum air pressure refers to an air pressure value in the heat preservation kiln zone when the temperature in the heat preservation kiln zone reaches the maximum overheat temperature, and when the air pressure information is smaller than or equal to the minimum air pressure, the first fan is turned off; when the air pressure information is between the minimum air pressure and the maximum air pressure, driving the first fan to operate, wherein the air pressure information is in a proportional relation with the operating power of the first fan; when the air pressure information is greater than or equal to the maximum air pressure, driving the first fan to operate at the maximum power; wherein according to formula T min =T+T 0 Calculating the minimum superheat temperature T min T is the target temperature of the heat preservation kiln zone, T 0 Is a temperature adjustment value and is a positive number; according to formula T max =T min + a×T 0 Calculating the maximum superheat temperature T max ，a>1；
In the cooling kiln zone, temperature information in the cooling kiln zone is collected in real time, and the working state of a second fan in an interlayer in the cooling kiln zone is controlled according to the temperature information, so that hot air in the interlayer is exchanged with external cold air, and the temperature in the cooling kiln zone is adjusted.
2. An intelligent control method for a roller kiln according to claim 1, further comprising: and driving the water cooling pipe in the cooling kiln zone according to the temperature information so as to adjust the temperature in the cooling kiln zone.
3. An intelligent control method for a roller kiln according to claim 1, further comprising: and driving the heating rod in the cooling kiln zone according to the temperature information so as to adjust the temperature in the cooling kiln zone.
4. An intelligent control method for a roller kiln according to claim 1, further comprising: when the roller kiln is empty, a third fan arranged in the cooling kiln zone is started, so that hot air in the cooling kiln zone is exchanged with external cold air, and the temperature in the cooling kiln zone is reduced.
5. An intelligent control method for a roller kiln according to claim 1, wherein the step of controlling the operating state of the second fan in the interlayer in the cooling kiln zone according to the temperature information comprises:
comparing the temperature information with preset minimum temperature and maximum temperature, wherein,
when the temperature information is smaller than or equal to the minimum temperature, the second fan is turned off;
when the temperature information is between the minimum temperature and the maximum temperature, driving the second fan to operate, wherein the temperature information is in a proportional relation with the operating power of the second fan;
and driving the second fan to operate at the maximum power when the temperature information is greater than or equal to the maximum temperature.
6. An intelligent control method for a roller kiln according to any one of claims 1 to 5, wherein leakage transformers are arranged in the heating kiln zone, the heat preserving kiln zone and the cooling kiln zone, and the leakage transformers are used for detecting leakage signals.
7. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the method of any of claims 1 to 6 when the computer program is executed.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the method of any of claims 1 to 6.
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| CN202111510028.6A CN114294949B (en) | 2021-12-10 | 2021-12-10 | Intelligent control method for roller kiln, computer equipment and readable storage medium |
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|---|---|---|---|---|
| CN109269295A (en) * | 2018-10-30 | 2019-01-25 | 湖南金炉科技股份有限公司 | A kind of atmosphere protection roller kilns |
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| WO2021031772A1 (en) * | 2019-08-19 | 2021-02-25 | 科达制造股份有限公司 | Roller kiln device and production system comprising the device |
| CN213020932U (en) * | 2020-05-15 | 2021-04-20 | 广东中鹏新能科技有限公司 | High-efficient multilayer multiseriate atmosphere protection roller kilns |
| CN113340099A (en) * | 2021-06-19 | 2021-09-03 | 黄冈市华窑中洲窑炉有限公司 | Gas-electric hybrid heating roller kiln for producing lithium battery material |
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2021
- 2021-12-10 CN CN202111510028.6A patent/CN114294949B/en active Active
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|---|---|---|---|---|
| CN109269295A (en) * | 2018-10-30 | 2019-01-25 | 湖南金炉科技股份有限公司 | A kind of atmosphere protection roller kilns |
| CN210463984U (en) * | 2019-06-13 | 2020-05-05 | 郑州中瓷科技有限公司 | High-temperature tunnel type electric heating kiln |
| WO2021031772A1 (en) * | 2019-08-19 | 2021-02-25 | 科达制造股份有限公司 | Roller kiln device and production system comprising the device |
| CN213020932U (en) * | 2020-05-15 | 2021-04-20 | 广东中鹏新能科技有限公司 | High-efficient multilayer multiseriate atmosphere protection roller kilns |
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