CN114294949A - Intelligent control method of roller kiln, computer equipment and readable storage medium - Google Patents
Intelligent control method of roller kiln, computer equipment and readable storage medium Download PDFInfo
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- CN114294949A CN114294949A CN202111510028.6A CN202111510028A CN114294949A CN 114294949 A CN114294949 A CN 114294949A CN 202111510028 A CN202111510028 A CN 202111510028A CN 114294949 A CN114294949 A CN 114294949A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000003860 storage Methods 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 92
- 238000010792 warming Methods 0.000 claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 23
- 238000004321 preservation Methods 0.000 claims abstract description 18
- 239000011229 interlayer Substances 0.000 claims abstract description 17
- 238000004590 computer program Methods 0.000 claims description 11
- 238000013021 overheating Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 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
- 239000000047 product Substances 0.000 description 3
- 230000000630 rising effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000009467 reduction Effects 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
- 238000010924 continuous production Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development 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
- 239000010410 layer Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 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, wherein the roller kiln comprises a heating kiln area, a heat preservation kiln area and a cooling kiln area which are sequentially arranged, and the intelligent control method of the roller kiln comprises the following steps: collecting air pressure information in the warming kiln area in real time in the warming kiln area, and controlling the working state of a first fan in the warming kiln area according to the air pressure information to adjust the temperature in the warming kiln area; in the cooling kiln area, the temperature information in the cooling kiln area is collected in real time, and the working state of a second fan in an interlayer in the cooling kiln area 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 area is adjusted. The invention also discloses a computer device and a computer readable storage medium. The invention can realize effective control of temperature and 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
With the development of science and technology, the demand of lithium batteries is continuously increased, and the kiln with high capacity, high efficiency and low energy consumption is more and more urgently required by people. The roller kiln has the advantages of simple structure, continuous production and high productivity, and is always adopted by most lithium batteries and manufacturers.
The roller kiln is a typical continuous kiln and consists of a preheating section, a firing section and a cooling section. When the roller kiln works, the lithium battery is placed on the roller rod, and the blank is sequentially preheated, sintered and cooled through continuous rotation of the roller rod, so that the quality of temperature control in the roller kiln directly influences the final product quality.
In the prior art, the firing temperature control of a lithium battery in a roller kiln is a typical large-time-lag closed-loop system, and the time lag is a time delay of controlled parameters (such as temperature, flow and the like) in time. The existence of the delay link enables the controlled temperature signal to be reflected after delaying for 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 the influence factors are complicated and changeable, and if the control is improper, the finished product rate and the energy waste of the firing quality of the ceramic product are seriously influenced.
Disclosure of Invention
The technical problem to be solved by the invention is to provide 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 have strong flexibility and high accuracy.
In order to solve the technical problem, the invention provides an intelligent control method of a roller kiln, which comprises a heating kiln area, a heat preservation kiln area and a cooling kiln area which are sequentially arranged, wherein the intelligent control method of the roller kiln comprises the following steps: collecting air pressure information in the warming kiln zone in real time in the warming kiln zone, and controlling the working state of a first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone; in the cooling kiln area, the temperature information in the cooling kiln area is collected in real time, and the working state of a second fan in an interlayer in the cooling kiln area 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 area is adjusted.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises the following steps: and driving a water cooling pipe in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises the following steps: and driving a heating rod in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information.
As an improvement of the above scheme, the intelligent control method of the roller kiln further comprises the following steps: when the roller kiln is in idle burning, the third fan arranged in the cooling kiln area is started, so that hot air in the cooling kiln area is exchanged with external cold air, and the temperature in the cooling kiln area is reduced.
As an improvement of the above scheme, the step of controlling the working state of the first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone includes: comparing the air pressure information with preset minimum air pressure and maximum air pressure, wherein the minimum air pressure refers to the air pressure value in the heat-preservation kiln region when the temperature in the heat-preservation kiln region reaches the minimum overheating temperature, and the maximum air pressure refers to the air pressure value in the heat-preservation kiln region when the temperature in the heat-preservation kiln region reaches the maximum overheating 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 direct proportional relation with the operation power of the first fan; and 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.
As an improvement to the above, according to the formula Tmin＝T+T0Calculating the minimum superheat temperature TminWherein T is the target temperature of the heat-preserving kiln zoneDegree, T0Is a temperature adjustment value and is a positive number; according to the formula Tmax＝Tmin+a×T0Calculating the maximum superheat temperature TmaxWherein a is>1。
As an improvement of the above scheme, the step of controlling the working state of the second fan in the interlayer in the cooling kiln region 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 less than or equal to the minimum temperature, the first fan is closed; when the temperature information is between the minimum temperature and the maximum temperature, driving the first fan to operate, wherein the temperature information is in a direct proportional relation with the operation power of the first fan; and when the temperature information is greater than or equal to the maximum temperature, driving the first fan to operate at the maximum power.
As an improvement of the scheme, leakage transformers are arranged in the heating kiln area, the heat preservation kiln area and the cooling kiln area and are used for detecting leakage signals.
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.
Accordingly, the present invention also provides a computer readable storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the steps of the intelligent control method for a roller kiln described above.
The implementation of the invention has the following beneficial effects:
aiming at the particularity of the heating kiln area and the cooling kiln area, the invention adopts different monitoring modes to regulate and control the temperature of the heating kiln area and the cooling kiln area, has strong flexibility and high pertinence, can effectively realize the rapid and stable control of the temperature, and particularly comprises the following steps: in the temperature rising kiln zone, the air pressure change can be quickly detected 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 effectively adjusted, and the real-time performance is stronger; in the cooling kiln district, because the second fan is located in the intermediate layer in cooling kiln district for the steady decline of temperature in the cooling kiln district, consequently, the accessible is to the operating condition of direct monitoring in order to control the second fan of temperature, thereby further guarantees the steady control of temperature.
Furthermore, the water cooling pipe and/or the heating rod are arranged in the cooling kiln area to further regulate and control the real-time temperature in the cooling kiln area, and the pertinence and the flexibility are strong.
In addition, the leakage transformers are arranged in the heating kiln area, the heat preservation kiln area and the cooling kiln area and 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 structural diagram of the roller kiln in the intelligent control method of the roller kiln of the present invention;
FIG. 3 is a flow chart of a second embodiment of the intelligent control method of the roller kiln of the present invention;
fig. 4 is a flowchart of a third embodiment of the intelligent control method of the roller kiln of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings. It is only noted that the invention is intended to be limited to the specific forms set forth herein, including any reference to the drawings, as well as any other specific forms of embodiments of the invention.
Referring to fig. 1, fig. 1 shows a flowchart of a first embodiment of the intelligent control method of the roller kiln of the present invention, which includes:
s101, collecting air pressure information in the warming kiln zone in real time in the warming kiln zone, and controlling the working state of a first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone.
As shown in fig. 2, the roller kiln comprises a heating kiln area 1, a heat preservation kiln area 2 and a cooling kiln area 3 which are sequentially communicated, wherein the heating kiln area 1 is used for realizing rapid temperature lifting, the temperature in the heat preservation kiln area 2 is stable, and the cooling kiln area 3 is used for realizing rapid temperature reduction.
Specifically, the step of controlling the working state of the first fan in the warming kiln zone 1 according to the air pressure information to adjust the temperature in the warming kiln zone 1 includes:
(1) and comparing the air pressure information with the preset minimum air pressure and the 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 overheating temperature. In particular, it can be according to the formula Tmin＝T+T0Calculating the minimum superheat temperature TminWherein T is the target temperature of the heat preservation kiln area, T0Is a temperature adjustment value and is a positive number.
For example, when the target temperature T of the holding kiln zone is 700 ℃, the temperature adjustment value T0At 90 ℃ and a minimum superheat temperature TminAt 790 ℃.
Correspondingly, the maximum air pressure refers to the air pressure value in the heat-preserving kiln zone when the temperature in the heat-preserving kiln zone reaches the maximum overheating temperature. In particular, it can be according to the formula Tmax＝Tmin+a×T0Calculating the maximum superheat temperature TmaxWherein a is>1。
For example, when the minimum superheat temperature TminA temperature adjustment value T of 790 DEG C0At 90 ℃ and a is 2, the maximum superheat temperature TmaxIt was 970 ℃.
(2) And when the air pressure information is less than or equal to the minimum air pressure, the first fan is closed.
(3) And when the air pressure information is between the minimum air pressure and the maximum air pressure, driving the first fan 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 is, the higher the temperature is, so that the operating power of the first fan can be increased to input more cold air into the warming kiln region, so as to rapidly reduce the temperature in the warming kiln region; the lower the air pressure, the lower the temperature, and therefore the operating power of the first fan can be reduced to input a small amount of cold air into the warming kiln zone to slowly reduce the temperature in the warming kiln zone.
(4) And 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.
It should be noted that, when the air pressure information is greater than or equal to the maximum air pressure, it indicates that the warming kiln region is in an over-temperature state, and at this time, the first fan needs to be driven to operate at the maximum power to input a large amount of cold air into the warming kiln region, so as to rapidly reduce the temperature in the warming kiln region.
In the prior art, the real-time control of the temperature is mainly realized by a temperature acquisition mode. Different from the prior art, the temperature control is realized by collecting air pressure. It should be noted that the air pressure detection can quickly detect the air pressure change before the temperature in the heating kiln region changes, so as to control the working state of the first fan in advance, more effectively adjust the temperature in the heating kiln region, and have stronger real-time performance.
S102, collecting temperature information in the cooling kiln area in real time in the cooling kiln area, and controlling the working state of a second fan in an interlayer in the cooling kiln area 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 area.
As shown in fig. 2, the second fan is arranged in the interlayer 31 of the cooling kiln region 3, so that cold air is prevented from directly entering the cooling kiln region 3, the temperature in the cooling kiln region 3 cannot be suddenly changed, and the stable reduction of the temperature in the cooling kiln region 3 is ensured.
Specifically, the step of controlling the working state of a second fan in an interlayer in the cooling kiln area according to the temperature information comprises the following steps:
(1) and comparing the temperature information with the preset lowest temperature and the preset highest temperature.
(2) And when the temperature information is less than or equal to the minimum temperature, the first fan is closed.
(3) And driving the first fan to operate when the temperature information is between the minimum temperature and the maximum temperature, wherein the temperature information is in a direct proportional relation with the operation power of the first fan.
(4) And when the temperature information is greater than or equal to the maximum temperature, driving the first fan to operate at the maximum power.
It should be noted that, in the cooling kiln area, because the second fan is arranged in the interlayer of the cooling kiln area, the temperature in the cooling kiln area is stably reduced, and therefore, the operating state of the second fan can be controlled by directly monitoring the temperature, and the stable control of the temperature is further ensured.
Therefore, the invention aims at the particularity of the heating kiln area and the cooling kiln area, adopts different monitoring modes to regulate and control the temperature of the heating kiln area and the cooling kiln area, 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 flowchart of a second embodiment of the intelligent control method for a roller kiln of the present invention, which includes:
s201, collecting air pressure information in the warming kiln zone in real time in the warming kiln zone, and controlling the working state of a first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone.
S202, collecting temperature information in the cooling kiln area in real time in the cooling kiln area, and controlling the working state of a second fan in an interlayer in the cooling kiln area 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 area.
And S203, driving a water cooling pipe in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information.
It should be noted that the interval near the battery product can be directly cooled locally through the water cooling pipe, and the pertinence is stronger.
And S204, driving a heating rod in the cooling kiln area according to the temperature information to adjust the temperature in the cooling kiln area.
When the too low condition of temperature appears in the cooling kiln district, can drive the heating rod in order to promote the temperature in the cooling kiln district, the flexibility is strong.
Therefore, different from the first embodiment described in fig. 1, in this embodiment, a water-cooled tube 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, and the pertinence and the flexibility are strong.
Referring to fig. 4, fig. 4 shows a flowchart of a third embodiment of the intelligent control method for a roller kiln of the present invention, which includes:
s301, collecting air pressure information in the warming kiln zone in real time in the warming kiln zone, and controlling the working state of a first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone.
S302, collecting temperature information in the cooling kiln area in real time in the cooling kiln area, and controlling the working state of a second fan in an interlayer in the cooling kiln area 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 area.
And S303, driving a water cooling pipe in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information in the cooling kiln area.
And S304, driving the heating rod in the cooling kiln area according to the temperature information to adjust the temperature in the cooling kiln area.
S305, when the roller kiln is in idle burning, starting a third fan arranged in the cooling kiln area to exchange hot air in the cooling kiln area with external cold air, and reducing the temperature in the cooling kiln area.
It should be noted that, when the roller kiln is empty-burning, the heat in the cooling kiln area can not be taken away, and therefore, the third fan can be driven to further reduce the temperature in the cooling kiln area.
Furthermore, leakage mutual inductors can be arranged in the heating kiln area, the heat preservation kiln area and the cooling kiln area and are used for detecting leakage signals.
It should be noted that, the leakage transformers can be used for respectively detecting the leakage situations in the heating kiln area, the heat preservation kiln area and the cooling kiln area, but when a leakage signal is detected in a certain area, alarm information can be sent out in real time to inform an operator to process the leakage signal, so that the normal use of the roller kiln can be ensured.
Correspondingly, the invention also provides computer equipment which comprises a memory and a processor, wherein the memory stores computer programs, and the processor realizes the steps of the intelligent control method of the roller kiln when executing the computer programs. Meanwhile, the invention also provides a computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, and the computer program is executed by a processor to realize the steps of the intelligent control method of the roller kiln.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The intelligent control method of the roller kiln is characterized in that the roller kiln comprises a heating kiln area, a heat preservation kiln area and a cooling kiln area which are sequentially arranged, and the intelligent control method of the roller kiln comprises the following steps:
collecting air pressure information in the warming kiln zone in real time in the warming kiln zone, and controlling the working state of a first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone;
in the cooling kiln area, the temperature information in the cooling kiln area is collected in real time, and the working state of a second fan in an interlayer in the cooling kiln area 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 area is adjusted.
2. The intelligent control method of a roller kiln according to claim 1, further comprising: and driving a water cooling pipe in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information.
3. The intelligent control method of a roller kiln according to claim 1, further comprising: and driving a heating rod in the cooling kiln area to adjust the temperature in the cooling kiln area according to the temperature information.
4. The intelligent control method of a roller kiln according to claim 1, further comprising: when the roller kiln is in idle burning, the third fan arranged in the cooling kiln area is started, so that hot air in the cooling kiln area is exchanged with external cold air, and the temperature in the cooling kiln area is reduced.
5. The intelligent control method for the roller kiln according to claim 1, wherein the step of controlling the operating state of the first fan in the warming kiln zone according to the air pressure information to adjust the temperature in the warming kiln zone comprises:
comparing the air pressure information with preset minimum air pressure and maximum air pressure, wherein the minimum air pressure refers to the air pressure value in the heat-preserving kiln zone when the temperature in the heat-preserving kiln zone reaches the minimum overheating temperature, the maximum air pressure refers to the air pressure value in the heat-preserving kiln zone when the temperature in the heat-preserving kiln zone reaches the maximum overheating temperature, and the air pressure information comprises the following steps of,
when the air pressure information is less 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 direct proportional relation with the operation power of the first fan;
and 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.
6. The intelligent control method of a roller kiln according to claim 5,
according to the formula Tmin＝T+T0Calculating the minimum superheat temperature TminWherein T is the target temperature of the heat preservation kiln area, T0Is a temperature adjustment value and is a positive number;
according to the formula Tmax＝Tmin+a×T0Calculating the maximum superheat temperature TmaxWherein a is>1。
7. The intelligent control method for the roller kiln according to claim 1, wherein 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:
comparing the temperature information with a preset lowest temperature and a preset highest temperature, wherein,
when the temperature information is less than or equal to the minimum temperature, turning off the first fan;
when the temperature information is between the minimum temperature and the maximum temperature, driving the first fan to operate, wherein the temperature information is in a direct proportional relation with the operation power of the first fan;
and when the temperature information is greater than or equal to the maximum temperature, driving the first fan to operate at the maximum power.
8. The intelligent control method for the roller kilns according to any one of claims 1 to 7, wherein leakage transformers are arranged in the heating kiln region, the heat preservation kiln region and the cooling kiln region and are used for detecting leakage signals.
9. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor, when executing the computer program, implements the steps of the method of any of claims 1 to 8.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 8.
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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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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| 艾冬华: ""辊道窑***中各风机的作用"", 《佛山陶瓷》, no. 03, pages 33 - 34 * |
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