CN113549725A - Hot blast stove system control method, device, equipment and medium - Google Patents
Hot blast stove system control method, device, equipment and medium Download PDFInfo
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- CN113549725A CN113549725A CN202110696346.XA CN202110696346A CN113549725A CN 113549725 A CN113549725 A CN 113549725A CN 202110696346 A CN202110696346 A CN 202110696346A CN 113549725 A CN113549725 A CN 113549725A
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B9/00—Stoves for heating the blast in blast furnaces
- C21B9/02—Brick hot-blast stoves
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Abstract
The invention discloses a method, a device, equipment and a medium for controlling a hot blast stove system, wherein the method comprises the following steps: determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas; acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range; adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter. Therefore, the technical problems of frequent fluctuation of hot gas calorific value, reduction of thermal efficiency and increase of fuel consumption caused by deviation of operating parameters of the hot blast stove from reasonable values in the prior art are solved, and the technical effects of improving the thermal efficiency of a system and reducing energy consumption are realized.
Description
Technical Field
The invention relates to the field of steel, in particular to a method, a device, equipment and a medium for controlling a hot blast stove system.
Background
The hot blast stove is important equipment in the iron-making production process, the principle of the hot blast stove is that heat is stored through checker bricks or blast air is heated through heat exchange, the hot blast stove is key equipment for realizing high blast temperature of a blast furnace, blast furnace gas consumed by the hot blast stove accounts for about half of gas generated by the blast furnace, and the hot blast stove is an important link for iron-making production with large energy consumption and energy conservation. However, the existing hot blast stove has the problems of low thermal efficiency and increased fuel consumption.
Disclosure of Invention
The embodiment of the application provides a hot blast stove system control method, a device, equipment and a medium, solves the technical problems of frequent fluctuation of hot gas calorific value, reduction of thermal efficiency and increase of fuel consumption caused by deviation of running parameters of a hot blast stove from reasonable values in the prior art, and achieves the technical effects of improving the thermal efficiency of a system and reducing energy consumption.
In a first aspect, the present application provides the following technical solutions through an embodiment of the present application:
a hot blast stove system control method comprises the following steps:
determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter.
Preferably, the combustible gas is coal gas, and the theoretical air-fuel ratio is determined based on the coal gas component.
Preferably, said adjusting an operating parameter of said hot blast stove system based on said relationship of said combustion parameter to a threshold parameter comprises:
when the combustion parameter is the volume percentage of the residual oxygen in the flue gas, if the volume percentage of the residual oxygen in the flue gas exceeds 6%, the air-fuel ratio is adjusted downwards, and the adjustment amplitude is 5% -15%.
Preferably, said adjusting an operating parameter of said hot blast stove system based on said relationship of said combustion parameter to a threshold parameter comprises:
and when the combustion parameter is the volume percentage of the flue gas CO, if the volume percentage of the flue gas CO exceeds 0.02%, the air-fuel ratio is adjusted upwards.
Preferably, said adjusting an operating parameter of said hot blast stove system based on said relationship of said combustion parameter to a threshold parameter comprises:
and when the combustion parameter is the flue gas temperature, if the flue gas temperature exceeds the threshold range, adjusting the hot blast stove system to switch from the combustion state to the air supply state.
Preferably, the adjusting the operation parameters of the hot blast stove system comprises:
adjusting air-fuel ratio, prolonging air supply time, reducing flue gas discharge temperature, reducing coal gas heat value, increasing air preheating temperature and reducing highest vault operating temperature.
In a second aspect, the present application provides the following technical solutions according to an embodiment of the present application:
a hot blast stove system control device comprising:
a first control unit for determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
the acquisition unit is used for acquiring the combustion parameters of the hot blast stove system under the initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
and the second control unit is used for adjusting the operation parameters of the hot blast stove system based on the relation between the combustion parameters and the threshold parameters.
Preferably, the first control unit is further configured to:
and determining the theoretical air-fuel ratio based on the gas component.
Preferably, the second control unit is further configured to:
when the combustion parameter is the volume percentage of the residual oxygen in the flue gas, if the volume percentage of the residual oxygen in the flue gas exceeds 6%, the air-fuel ratio is adjusted downwards, and the adjustment amplitude is 5% -15%.
Preferably, the second control unit is further configured to:
and when the combustion parameter is the volume percentage of the flue gas CO, if the volume percentage of the flue gas CO exceeds 0.02%, the air-fuel ratio is adjusted upwards.
Preferably, the second control unit is further configured to:
and when the combustion parameter is the flue gas temperature, if the flue gas temperature exceeds the threshold range, adjusting the hot blast stove system to switch from the combustion state to the air supply state.
Preferably, the second control unit is further configured to:
adjusting air-fuel ratio, prolonging air supply time, reducing flue gas discharge temperature, reducing coal gas heat value, increasing air preheating temperature and reducing highest vault operating temperature.
In a third aspect, the present application provides the following technical solutions through an embodiment of the present application:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method steps of any of the first aspect when executing the computer program.
In a fourth aspect, the present application provides the following technical solutions according to an embodiment of the present application:
a computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any of the first aspects.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
the embodiment of the application provides a method, a device, equipment and a medium for controlling a hot blast stove system, wherein the method comprises the steps of obtaining a combustion parameter of the hot blast stove system, and then adjusting an operation parameter of the hot blast stove system based on the relation between the combustion parameter and a threshold parameter. Can make the operation parameter of the hot blast stove always be in a reasonable range. The technical problems that the operating parameters of the hot blast stove deviate from reasonable values, so that the fluctuation of the heat value of hot gas is frequent, the heat efficiency is reduced and the fuel consumption is increased in the prior art are solved, and the technical effects of improving the heat efficiency of a system and reducing the energy consumption are realized.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
FIG. 1 is a flow chart of a method for controlling a hot blast stove system according to an embodiment of the present invention;
FIG. 2 is a first diagram of a hot blast stove system according to an embodiment of the present invention;
FIG. 3 is a second diagram of a hot blast stove system according to an embodiment of the present invention;
FIG. 4 is a block diagram of a control device of a hot blast stove system according to an embodiment of the present invention;
FIG. 5 is a block diagram of an electronic device according to an embodiment of the invention;
fig. 6 is a block diagram of a computer-readable storage medium according to an embodiment of the present invention.
Detailed Description
The embodiment of the application provides a hot blast stove system control method, a device, equipment and a medium, solves the technical problems of frequent fluctuation of hot gas calorific value, reduction of thermal efficiency and increase of fuel consumption caused by deviation of running parameters of a hot blast stove from reasonable values in the prior art, and achieves the technical effects of improving the thermal efficiency of a system and reducing energy consumption.
In order to solve the technical problems, the general idea of the embodiment of the application is as follows:
a hot blast stove system control method comprises the following steps:
determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
First, it is stated that the term "and/or" appearing herein is merely one type of associative relationship that describes an associated object, meaning that three types of relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
Example one
Specifically, as shown in fig. 1, the present embodiment provides a method for controlling a hot blast stove system, including:
in step S101, an air-fuel ratio control range is determined based on the stoichiometric air-fuel ratio of the combustible gas.
In the specific implementation process, the ratio of the mass of air to the mass of fuel in the combustible mixture is an air-fuel ratio, and the air-fuel ratio A/F (A: air-air, F: fuel-fuel) represents the mixing ratio of air and fuel. The air-fuel ratio is an important parameter when the hot blast stove system is operated, and has great influence on tail gas emission, the heat efficiency and the economical efficiency of the hot blast stove system.
As an alternative embodiment, the combustible gas is coal gas, and the theoretical air-fuel ratio is determined based on the coal gas composition.
In the implementation process, the corresponding theoretical air-fuel ratio is different according to different components of the coal gas. Specifically, if the coal gas contains CO224％、CO 26.5％、H24.3% and N245.2%, its theoretical air-fuel ratio is 0.75; if the coal gas contains CO222.3％、CO 24.7％、H24％、N249%, and its theoretical air-fuel ratio is 0.64.
Wherein the type of the coal gas can be blast furnace gas, converter gas or mixed gas, and the heat value of the coal gas ranges from 2500 kJ/m to 10000kJ/m3. The heat value of the coal gas is divided into a high heat value and a low heat value, and the difference between the high heat value and the low heat value of the coal gas is about 10 percent. The gas is combusted to produce water vapor which is cooled to form pre-combustion coalWhen the gas temperature is high, not only the heat between the temperature differences but also the condensation heat of the water vapor is released, so that the lower calorific value is obtained by subtracting the condensation heat of the water vapor from the higher calorific value. During actual combustion, water vapor is not condensed, and the condensation heat is not utilized, which is an important factor influencing the determination of the calorific value through an experimental form.
Step S102, acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range.
In the specific implementation process, the current ethical air-fuel ratio of the gas can be obtained and used as the initial air-fuel ratio parameter of the hot blast stove system according to the theoretical air-fuel ratio. Specifically, the air flow rate and the gas flow rate are adjusted according to the value of the theoretical air-fuel ratio.
103, adjusting the operation parameters of the hot blast stove system based on the relation between the combustion parameters and the threshold parameters.
In the specific implementation process, the combustion parameters are internal environmental parameters of the hot blast stove in a combustion state. The combustion parameters can be residual oxygen in flue gas, air and coal gas flow, coal gas composition, air and coal gas temperature and flue gas temperature. The combustion parameters of the hot blast stove are different under the setting of different operation parameters. And further, the heat efficiency of the hot blast stove can be adjusted and optimized based on the combustion parameters.
Wherein, adjust the operating parameter of hot-blast furnace system to optimize the thermal efficiency of hot-blast furnace, include: adjusting air-fuel ratio, prolonging air supply time, reducing flue gas discharge temperature, reducing coal gas heat value, increasing air preheating temperature and reducing highest vault operating temperature. Of course, the gas may be replaced by a gas made of a different gas, and this embodiment is not limited.
As an alternative embodiment, when the combustion parameter is the volume percentage of the residual oxygen in the flue gas, if the volume percentage of the residual oxygen in the flue gas exceeds 6%, the air-fuel ratio is adjusted downward, and the adjustment range is 5% to 15%.
In the specific implementation process, if the residual oxygen in the flue gas is too high, the actual air-fuel ratio of the hot blast stove is high in theoretical air-fuel ratio, and the flue gas is rich in gas and less in oil. However, in this case, the thermal efficiency is insufficient, resulting in excessive gas consumption. Specifically, if the residual oxygen content in the flue gas is 8% and the actual air-fuel ratio is 0.89, the actual air-fuel ratio can be adjusted to 0.77.
As an alternative embodiment, when the combustion parameter is flue gas CO volume percentage, if the flue gas CO volume percentage exceeds 0.02%, the air-fuel ratio is adjusted upwards. Of course, the air-fuel ratio may be adjusted based on the volume content of the flue gas HC, and the present embodiment is not limited thereto.
In the specific implementation process, if the gas is not completely combusted, more CO and HC can be generated. At this time, the air-fuel ratio is adjusted to be high, that is, the air flow rate is adjusted to be high, and further, the combustion speed is increased, the combustion is stabilized, and CO and HC are reduced. Furthermore, the combustion efficiency is improved, so that the heat efficiency of the hot blast stove is improved.
As an optional embodiment, when the combustion parameter is the flue gas temperature, if the flue gas temperature exceeds the threshold range, the hot blast stove system is adjusted to switch from the combustion state to the air supply state.
In the specific implementation process, a smoke temperature safety range can be preset, and if the current smoke temperature exceeds the safety range, air is supplied to the hot blast stove to prevent the smoke temperature from being too high. Too high flue gas temperature can reduce the grate and the support strength for supporting the checker bricks, even deform and burn out, and cause too high flue temperature, more flue gas takes away heat, so that the hot blast stove has low heat efficiency and increased gas consumption.
As an alternative embodiment, the application also provides a method of characterising the thermal efficiency of a hot blast stove, the thermal efficiency of which is determined based on the following equation:
wherein Q is1For chemical heat of gas combustion, Q2For bringing physical heat into the gas, Q3Bringing physical heat into the air, Q'1For bringing out heat by hot air, Q4Bringing cold air into physical heat.
In the specific implementation process, the air gas flow, the air gas temperature and the gas heat value, and the cold air temperature, the cold air flow and the hot air temperature in the air supply period state can be obtained based on-line detection. And then calculating the physical heat brought in by the coal gas, the physical heat brought in by the air and the chemical heat of the combustion of the coal gas in sequence based on the air gas flow, the air gas temperature and the coal gas heat value, and calculating the heat brought in by the cold air and the heat brought out by the hot air based on the cold air temperature, the cold air flow and the hot air temperature.
The following description of the detailed implementation steps of the method provided in the present embodiment is assisted by a specific example in conjunction with the hot blast stove system in fig. 2 and 3:
the coal gas enters a coal gas heat exchanger 23 through a coal gas pipeline 24 and is preheated and then divided into four strands, the first strand of coal gas enters a first hot blast stove 9 through a first coal gas valve 15, the second strand of coal gas enters a second hot blast stove 10 through a second coal gas valve 17, the third strand of coal gas enters a third hot blast stove 11 through a third coal gas valve 19, and the fourth strand of coal gas enters a fourth hot blast stove 12 through a fourth coal gas valve 21.
Air from a blower 27 enters a preheating furnace 25 through an air pipeline 26 and is preheated and then divided into four strands, a first strand of air enters a first hot blast stove 9 through a first cold air valve 14, a second strand of air enters a second hot blast stove 10 through a second cold air valve 16, a third strand of air enters a third hot blast stove 11 through a third cold air valve 18, and a fourth strand of air enters a fourth hot blast stove 12 through a fourth cold air valve 20.
The first coal gas and the first air are combusted in a first hot blast stove 9, the second coal gas and the second air are combusted in a second hot blast stove 10, the third coal gas and the third air are combusted in a third hot blast stove 11, and the fourth coal gas and the fourth air are combusted in a fourth hot blast stove 12.
Flue gas of a first hot blast stove 9 passes through a first flue gas valve 2, flue gas of a second hot blast stove 10 passes through a second flue gas valve 4, flue gas of a third hot blast stove 11 passes through a third flue gas valve 6, and flue gas of a fourth hot blast stove 12 passes through a fourth flue gas valve 8, enters a gas heat exchanger 23 together to preheat gas, and then is discharged through a chimney 22.
The hot wind of the first hot blast stove 9 passes through the first hot blast valve 1, the hot wind of the second hot blast stove 10 passes through the second hot blast valve 3, the hot wind of the third hot blast stove 11 passes through the third hot blast valve 5, the hot wind of the fourth hot blast stove 12 passes through the fourth hot blast valve 7, and the hot wind is sequentially merged into the blast furnace 13 to improve the required high-temperature hot wind.
The air-gas parameters of the first hot-blast stove 9, the second hot-blast stove 10, the third hot-blast stove 11 and the fourth hot-blast stove 12 include temperature, pressure, flow and gas components are collected by the second data collector 31 through the detection data line 30 and then input into the industrial personal computer 29, the hot-blast temperatures of the first hot-blast stove 9, the second hot-blast stove 10, the third hot-blast stove 11 and the fourth hot-blast stove 12, and the flue gas temperature and residual oxygen are collected by the first data collector 28 through the detection data line 30 and then input into the industrial personal computer 29.
Example two
Based on the same inventive concept, as shown in fig. 4, the present embodiment provides a hot blast stove system control device 400, including:
a first control unit 410 for determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
an obtaining unit 420, configured to obtain a combustion parameter of the hot blast stove system under an initial air-fuel ratio parameter; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
a second control unit 430, configured to adjust an operating parameter of the hot blast stove system based on a relationship between the combustion parameter and a threshold parameter.
Since the hot blast stove system control device described in this embodiment is a device used for implementing the hot blast stove system control method in the embodiment of the present invention, based on the hot blast stove system control method described in the embodiment of the present invention, a person skilled in the art can understand the specific implementation manner of the hot blast stove system control device of this embodiment and various variations thereof, and therefore, how to implement the method in the embodiment of the present invention by the hot blast stove system control device is not described in detail herein. The technical personnel in the field can apply the device adopted by the hot blast stove system control method in the embodiment of the invention, and the device belongs to the protection scope of the invention.
EXAMPLE III
Based on the same inventive concept, as shown in fig. 5, the present embodiment provides an electronic device, which includes a memory 510, a processor 520, and a computer program 511 stored in the memory 510 and running on the processor 520, wherein the processor 520 implements the following steps when executing the computer program 511:
determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas; acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range; adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter.
Since the electronic device described in this embodiment is an electronic device used for implementing the method for controlling the hot blast stove system in this embodiment, a person skilled in the art can understand the specific implementation manner of the electronic device of this embodiment and various variations thereof based on the method for controlling the hot blast stove system described in this embodiment, and therefore, how to implement the method in this embodiment is not described in detail herein. The electronic devices used by those skilled in the art to implement the method for controlling the hot blast stove system in the embodiments of the present application are all within the scope of the present application.
Example four
Based on the same inventive concept, as shown in fig. 6, the present embodiment provides a computer-readable storage medium 600, on which a computer program 610 is stored, the computer program 610 implementing the following steps when being executed by a processor:
determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas; acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range; adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter.
The technical scheme in the embodiment of the application at least has the following technical effects or advantages:
the embodiment of the application provides a method, a device, equipment and a medium for controlling a hot blast stove system, wherein the method comprises the steps of obtaining a combustion parameter of the hot blast stove system, and then adjusting an operation parameter of the hot blast stove system based on the relation between the combustion parameter and a threshold parameter. Can make the operation parameter of the hot blast stove always be in a reasonable range. The technical problems that the operating parameters of the hot blast stove deviate from reasonable values, so that the fluctuation of the heat value of hot gas is frequent, the heat efficiency is reduced and the fuel consumption is increased in the prior art are solved, and the technical effects of improving the heat efficiency of a system and reducing the energy consumption are realized.
While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A hot blast stove system control method is characterized by comprising the following steps:
determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
acquiring combustion parameters of the hot blast stove system under initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
adjusting an operating parameter of the hot blast stove system based on a relationship of the combustion parameter and a threshold parameter.
2. The method of claim 1, wherein the combustible gas is a gas, and the theoretical air-fuel ratio is determined based on a composition of the gas.
3. The method of claim 1, wherein said adjusting an operating parameter of said furnace system based on said combustion parameter versus threshold parameter comprises:
when the combustion parameter is the volume percentage of the residual oxygen in the flue gas, if the volume percentage of the residual oxygen in the flue gas exceeds 6%, the air-fuel ratio is adjusted downwards, and the adjustment amplitude is 5% -15%.
4. The method of claim 1, wherein said adjusting an operating parameter of said furnace system based on said combustion parameter versus threshold parameter comprises:
and when the combustion parameter is the volume percentage of the flue gas CO, if the volume percentage of the flue gas CO exceeds 0.02%, the air-fuel ratio is adjusted upwards.
5. The method of claim 1, wherein said adjusting an operating parameter of said furnace system based on said combustion parameter versus threshold parameter comprises:
and when the combustion parameter is the flue gas temperature, if the flue gas temperature exceeds the threshold range, adjusting the hot blast stove system to switch from the combustion state to the air supply state.
6. The method of claim 1, wherein said adjusting an operating parameter of said hot blast stove system comprises:
adjusting air-fuel ratio, prolonging air supply time, reducing flue gas discharge temperature, reducing coal gas heat value, increasing air preheating temperature and reducing highest vault operating temperature.
7. A hot blast stove system control device, comprising:
a first control unit for determining an air-fuel ratio control range based on a theoretical air-fuel ratio of the combustible gas;
the acquisition unit is used for acquiring the combustion parameters of the hot blast stove system under the initial air-fuel ratio parameters; wherein the initial air-fuel ratio is within the air-fuel ratio control range;
and the second control unit is used for adjusting the operation parameters of the hot blast stove system based on the relation between the combustion parameters and the threshold parameters.
8. The apparatus of claim 7, wherein the second control unit is to:
adjusting air-fuel ratio, prolonging air supply time, reducing flue gas discharge temperature, reducing coal gas heat value, increasing air preheating temperature and reducing highest vault operating temperature.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method of any of claims 1-6 are implemented when the computer program is executed by the processor.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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| CN202110696346.XA CN113549725A (en) | 2021-06-23 | 2021-06-23 | Hot blast stove system control method, device, equipment and medium |
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| CN202110696346.XA CN113549725A (en) | 2021-06-23 | 2021-06-23 | Hot blast stove system control method, device, equipment and medium |
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| JPH10245611A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Method for controlling hot stove |
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2021
- 2021-06-23 CN CN202110696346.XA patent/CN113549725A/en active Pending
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| JPH10245611A (en) * | 1997-03-07 | 1998-09-14 | Nippon Steel Corp | Method for controlling hot stove |
| CN101408314A (en) * | 2008-03-19 | 2009-04-15 | 首钢总公司 | Automatic control system of blast furnace hot blast stove combustion process |
| CN106322429A (en) * | 2016-08-19 | 2017-01-11 | 上海策立工程技术有限公司 | Intelligent combustion control method based on online optimization of air-fuel ratio and used for heating furnace |
| CN111780155A (en) * | 2020-07-21 | 2020-10-16 | 济源国泰自动化信息技术有限公司 | Control system and control method for high-efficiency combustion hot blast stove |
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