CN115074141A - Method and device for controlling combustion degree of heat recovery coke oven and coke oven system - Google Patents
Method and device for controlling combustion degree of heat recovery coke oven and coke oven system Download PDFInfo
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- CN115074141A CN115074141A CN202210688306.5A CN202210688306A CN115074141A CN 115074141 A CN115074141 A CN 115074141A CN 202210688306 A CN202210688306 A CN 202210688306A CN 115074141 A CN115074141 A CN 115074141A
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Abstract
The embodiment of the application provides a method and a device for controlling the combustion degree of a heat recovery coke oven and a coke oven system, wherein the method for controlling the combustion degree of the heat recovery coke oven comprises the following steps of obtaining the flow and component information of combustible gas generated by coal materials, and calculating the heat supply amount of the combustible gas in complete combustion according to the flow and the components of the combustible gas; acquiring coal material parameters, a production task and a target temperature, and calculating the heat demand for coking according to the coal material parameters, the production task and the target temperature; comparing the heat supply quantity with the heat demand quantity; and when the heat supply amount is greater than the heat demand amount, calculating a second air amount required when the heat supply amount of the combustible gas in incomplete combustion is equal to the heat demand amount, and controlling the air conveying device to convey air into the furnace according to the second air amount. The air conveying device is controlled to accurately convey the air quantity to the coke oven, so that the heat generated by incomplete combustion of the combustible gas is equal to the required heat, the combustion degree of the combustible gas is controllable, and the problem that the temperature of the coke oven is too high due to excessive combustion of the combustible gas generated by coal is solved.
Description
Technical Field
The application relates to the technical field of coking, in particular to a method and a device for controlling the combustion degree of a heat recovery coke oven and a coke oven system.
Background
This section provides background information related to the present application and is not necessarily prior art.
The heat recovery coke oven is a coke production device for mechanically tamping, coal charging, coke discharging and recycling the waste heat of the coking combustion flue gas. The heat recovery coke oven utilizes the gas generated by coal carbonization to burn and supply the heat required by coal carbonization, and the coke oven provides heat to produce coke.
The heating gas of the heat recovery coke oven is all provided by the raw gas generated by coal coking, and the gas quantity of the raw gas generated in the coal coking process is uncontrollable and can only be combusted according to the gas quantity, namely how much raw gas is generated and how much raw gas needs to be combusted in the coke oven. When the volatile content of the coal charged in the coke oven is high, excessive coal gas can be generated, and the coal is completely combusted in the coke oven, so that the problems of high temperature in the coke oven or over-high temperature of local bricks and the like can be caused.
Disclosure of Invention
The embodiment of the application aims to provide a method and a device for controlling the combustion degree of a heat recovery coke oven and a coke oven system, so as to solve the problems that the combustion degree of combustible gas generated in the coking process of coal in the coke oven is uncontrollable and the temperature of the coke oven is easily overhigh. The specific technical scheme is as follows:
the embodiment of the first aspect of the application provides a method for controlling the combustion degree of a heat recovery coke oven, which comprises the following steps:
acquiring flow and component information of combustible gas generated by coal, and calculating the heat supply amount of the combustible gas in complete combustion according to the flow and the components of the combustible gas;
acquiring coal parameters, a production task and a target temperature, and calculating the heat demand of coal coking according to the coal parameters, the production task and the target temperature;
comparing the heat supply quantity with the heat demand quantity;
when the heat supply amount is less than or equal to the heat demand amount, calculating a first air amount required by complete combustion of the combustible gas, and controlling an air conveying device to convey air into the furnace according to the first air amount;
and when the heat supply amount is greater than the heat demand amount, calculating a second air amount required when the heat supply amount of the incomplete combustion of the combustible gas is equal to the heat demand amount, and controlling the air conveying device to convey air into the furnace according to the second air amount.
According to the method for controlling the combustion degree of the heat recovery coke oven, the flow and the heating load of the combustion of the combustible gas of the components can be calculated by acquiring the flow and the component information of the combustible gas of the coal materials, the heat demand for coking by the coal materials is acquired, the heating load and the heat demand are compared, and when the heat generated by the complete combustion of the combustible gas is greater than the heat demand for coking by the coal materials, the air quantity is accurately conveyed to the coke oven by controlling the air conveying device, so that the heat generated by the incomplete combustion of the combustible gas is equal to the heat demand, the combustion degree of the combustible gas is controllable, and the problem that the temperature of the coke oven is overhigh due to the excessive combustion of the combustible gas generated by the coal materials is effectively prevented; when the heat generated by the complete combustion of the combustible gas is less than or equal to the heat demand, the air quantity required by the complete combustion of the combustible gas is delivered, so that the resource utilization efficiency of the heat recovery coke oven is improved.
In some embodiments of the present application, the heat recovery coke oven combustion degree control method further comprises: and when the heat supply amount of the combustible gas in complete combustion is larger than the heat demand amount, calculating a third air amount required by complete combustion of residual flue gas of the combustible gas in incomplete combustion in the second air amount, and controlling the air delivery device to deliver air to an external combustion device according to the third air amount.
In some embodiments of the present application, the heat recovery coke oven combustion degree control method further comprises: acquiring the coke temperature at the end of coking; and comparing the difference between the coke temperature and the target temperature, calculating a fourth air quantity required by complete combustion or a fifth air quantity required by incomplete combustion of the combustible gas according to the difference, and controlling the air delivery device to deliver air into the furnace according to the fourth air quantity or the fifth air quantity.
In some embodiments of the present application, the heat recovery coke oven combustion degree control method further comprises: acquiring smoke parameter information before and after smoke combustion; and calculating a sixth air quantity required by the complete combustion of the flue gas according to the flue gas parameter information, and controlling the air quantity conveyed to an external combustion device by the air conveying device according to the sixth air quantity.
The embodiment of the second aspect of the present application provides a combustion degree control device for a heat recovery coke oven, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire flow and component information of combustible gas generated by coal, and acquire coal parameters, production tasks and target temperature;
the calculation module is configured to calculate the heat supply amount of the combustible gas after the combustible gas is completely combusted according to the flow and the components of the combustible gas, and calculate the heat demand amount of coal coking according to the coal parameters, the production tasks and the target temperature;
a comparison module configured to compare the heat supply amount with the heat demand amount;
the calculation module is further configured to calculate a first amount of air required for complete combustion of the combustible gas when the heat supply amount is less than or equal to the heat demand amount; when the heat supply amount is larger than the heat demand amount, calculating a second air amount required when the heat supply amount of the incomplete combustion of the combustible gas is equal to the heat demand amount;
the control module is configured to control the air conveying device to convey air into the furnace according to the first air quantity when the heat supply quantity is smaller than or equal to the heat demand quantity; the control module is further configured to control the air delivery device to deliver air into the furnace according to the second air quantity when the heat supply quantity is greater than the heat demand quantity.
In some embodiments of the present application, the calculation module is further configured to calculate a third air amount required for complete combustion of the remaining flue gas after incomplete combustion of the combustible gas in the second air amount when the heat supply amount of the complete combustion of the combustible gas is greater than the heat demand amount; the control module is further configured to control an amount of air delivered by the air delivery device to an external combustion device based on the third amount of air.
In some embodiments of the present application, the obtaining module is further configured to obtain a coking end coke temperature;
the comparison module is further configured to compare the coke temperature to the target temperature and obtain a difference between the coke temperature and the target temperature;
the calculation module is further configured to calculate a fourth air amount required for complete combustion or a fifth air amount required for incomplete combustion of the combustible gas, based on a difference between the coke temperature and the target temperature;
the control module is further configured to control the air delivery device to deliver air into the oven based on the fourth or fifth amount of air.
In some embodiments of the present application, the obtaining module is further configured to obtain pre-combustion and post-combustion flue gas parameter information;
the calculation module is further configured to calculate a sixth air amount required for complete combustion of the flue gas according to the flue gas parameter information;
the control module is further configured to control delivery of air by the air delivery device to the external combustion device in accordance with the sixth air volume.
The embodiment of the third aspect of the application provides a coke oven system, which comprises the heat recovery coke oven combustion degree control device in any embodiment, a coke oven, an air conveying device and an external combustion device, the coke oven is used for burning combustible gas for coking, the external combustion device is communicated with the coke oven and is used for conveying flue gas generated when the combustible gas in the coke oven is incompletely burnt into the external combustion device for burning, the air delivery device is used for delivering air to the coke oven and the external combustion device, the heat recovery coke oven combustion degree control device is configured to calculate the air amount, the air conveying device is configured to control conveying air by the combustion degree control device of the heat recovery coke oven according to the air amount, or manually adjust conveying air of the air conveying device according to the air amount.
In some embodiments of the present application, a plurality of temperature detectors are disposed inside the coke oven, a flue gas component detection device is disposed in the combustion device outside the coke oven, the temperature detectors are configured to detect coke temperature and the temperature of the flue gas before and after combustion, and the flue gas component detection device is configured to detect the flue gas components before and after combustion.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and it is also obvious for a person skilled in the art to obtain other embodiments according to the drawings.
FIG. 1 is a schematic flow chart of a method of controlling the extent of combustion in a heat recovery coke oven according to some embodiments of the present application;
FIG. 2 is another schematic flow diagram of a method of controlling the extent of combustion in a heat recovery coke oven according to some embodiments of the present application;
FIG. 3 is a schematic flow chart of a method for controlling the extent of combustion in a heat recovery coke oven according to some embodiments of the present application;
FIG. 4 is a schematic structural view of a combustion degree control apparatus of a heat recovery coke oven according to some embodiments of the present application;
FIG. 5 is a schematic structural view of a coke oven system according to some embodiments of the present application.
The reference numbers are as follows:
100: heat recovery coke oven combustion degree control device, 10: acquisition module, 20: calculation module, 30: comparison module, 40: a control module;
200: coke oven system, 210: coke oven, 220: air delivery device, 230: external combustion apparatus, 240: temperature detector, 250: flue gas component detection device.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the description herein are intended to be within the scope of the present disclosure.
Referring to fig. 1, a first embodiment of the present application provides a method for controlling a combustion degree of a heat recovery coke oven, which includes the following steps:
step S101: acquiring the flow and component information of combustible gas generated by coal materials, and calculating the heat supply amount of the completely combusted combustible gas according to the flow and the components of the combustible gas;
step S102: acquiring coal parameters, a production task and a target temperature, and calculating the heat demand of coal coking according to the coal parameters, the production task and the target temperature;
step S103: comparing the heat supply quantity with the heat demand quantity;
step S104: when the heat supply amount is less than or equal to the heat demand amount, calculating a first air amount required by the complete combustion of the combustible gas, and controlling the air conveying device to convey air into the furnace according to the first air amount;
step S105: and when the heat supply amount is greater than the heat demand amount, calculating a second air amount required when the heat supply amount of the incompletely combusted combustible gas is equal to the heat demand amount, and controlling the air conveying device to convey air into the furnace according to the second air amount.
According to the method for controlling the combustion degree of the heat recovery coke oven, the heating load of the combustion of the combustible gas of the flow and the components can be calculated by obtaining the flow and the component information of the combustible gas of the coal, then the coal parameters, the production task and the target temperature are obtained, the heat demand for coking is calculated according to the coal parameters, the production task and the target temperature, the heating load and the heat demand are compared, when the heat generated by the complete combustion of the combustible gas is greater than the heat demand for coking of the coal, the air conveying device is controlled to accurately convey the air quantity to the coke oven, so that the heat generated by the incomplete combustion of the combustible gas is equal to the heat demand, the combustion degree of the combustible gas is controllable, and the problem that the temperature of the coke oven is overhigh due to the complete combustion when the combustible gas generated by the coal is excessive is effectively prevented; when the heat generated by the complete combustion of the combustible gas is less than or equal to the heat demand, the air quantity required by the complete combustion of the combustible gas is delivered, so that the heat resource utilization efficiency of the heat recovery coke oven is improved.
In some embodiments, the flow rate and composition of combustible gas produced by the coal is determined by analysis of the coal sample. The main influence factors of the flow and the components comprise coal quantity, volatile components, water and the like.
In some embodiments, the coal feed parameters primarily include volatiles and moisture; the production task mainly comprises the coal amount and the coking time; the target temperature is the target temperature for coking coal. It is understood that the more coal, the longer the coking time and the higher the target temperature, the greater the heat demand, and conversely, the less coal, the shorter the coking time and the lower the target temperature, the less the heat demand. The coal charge parameters, the production task and the target temperature together determine the value of the heat demand.
In some embodiments, the method for controlling the extent of combustion of a heat recovery coke oven further comprises the steps of:
step S106: and when the heating quantity of the combustible gas in the complete combustion is larger than the heat demand quantity, calculating a third air quantity required by the complete combustion of the residual flue gas of the combustible gas in the second air quantity, which is not completely combusted, and controlling the air delivery device to deliver air to the combustion device outside the furnace according to the third air quantity.
When the combustible gas in the inner cavity of the coke oven is excessive, the incomplete combustion mode is adopted, and the residual flue gas generated after the incomplete combustion of the combustible gas is discharged to the outside air after the complete combustion, so that the third air quantity required by the complete combustion of the residual flue gas is calculated, and the air with the third air quantity is conveyed, so that the residual flue gas is completely combusted, and the pollution to the air is reduced.
In some embodiments, the remaining flue gas is conveyed to an external combustion device for complete combustion.
Referring to fig. 2, in some embodiments, the method for controlling the combustion degree of the heat recovery coke oven further comprises the following steps:
step S107: acquiring the coke temperature at the end of coking;
step S108: comparing the difference between the coke temperature and the target temperature;
step S109: and calculating a fourth air quantity required for complete combustion or a fifth air quantity required for incomplete combustion of the combustible gas based on the difference, and controlling the air delivery device to deliver air into the furnace based on the fourth air quantity or the fifth air quantity.
By acquiring the coke temperature at the last stage of coking and comparing the difference value between the coke temperature and the target temperature, the air quantity required by combustion of combustible gas to enable the coal temperature to reach the target temperature is calculated in the coking process, so that the calculated air quantity is more accurate. When the combustible gas needs to be completely combusted to enable the temperature of the coal to reach the preset temperature, the air quantity required by the complete combustion of the combustible gas is conveyed, namely a fourth air quantity; and when the combustible gas needs to be incompletely combusted to enable the temperature of the coal material to reach the preset temperature, delivering the air quantity required by the incomplete combustion of the combustible gas, namely, a fifth air quantity. It can be understood that the air delivery amount to the furnace by the air delivery device is controlled to be corrected from the first air amount or the second air amount to the fourth air amount or the fifth air amount which is more accurately calculated by the difference between the coke temperature at the end of coking and the preset temperature.
In some embodiments, the coke temperature at the end of coking may be detected by a temperature detector.
Referring to fig. 3, in some embodiments, the method for controlling the combustion degree of the heat recovery coke oven further comprises the following steps:
step S110: acquiring smoke parameter information before and after smoke combustion;
step S111: and calculating a sixth air quantity required by complete combustion of the flue gas according to the flue gas parameter information, and controlling the air quantity conveyed to the combustion device outside the furnace by the air conveying device according to the sixth air quantity.
Through the flue gas parameter information before the flue gas burning and after burning that obtains, calculate the sixth air volume that the flue gas burns the needs completely, through the real-time conveying capacity of adjusting the air of actual measurement flue gas parameter information, can promote the accurate nature of air conveying capacity, guarantee that surplus flue gas burns completely. The method comprises the steps of calculating the air quantity required by complete combustion of the flue gas according to components (mainly comprising carbon monoxide, hydrogen and methane) of the flue gas before combustion, detecting component information again after combustion, obtaining that combustible gas is not contained in residual flue gas after combustion through detection to determine complete combustion, and adjusting the air conveying quantity when the residual flue gas after combustion still contains combustible gas (carbon monoxide, hydrogen and methane). In addition, according to the difference value of the temperature of the flue gas before and after the combustion of the flue gas, the heat released by the combustion of the flue gas can be determined, and compared with the heat which should be released by the complete combustion of the component of the flue gas, whether the flue gas is completely combusted or not can be determined again. And the temperature is detected in real time, and the amount of the delivered air is adjusted in real time.
In some embodiments, the smoke component information may be detected by a smoke component detecting device, and the detecting points of the smoke component detecting device are respectively arranged at the front end and the rear end of the combustion device outside the furnace.
Referring to fig. 4, a second embodiment of the present application provides a combustion degree control device 100 for a heat recovery coke oven, comprising:
the acquiring module 10 is configured to acquire flow and component information of combustible gas generated by the coal material, and acquire parameters, production tasks and target temperature of the coal material;
the calculation module 20 is configured to calculate the heat supply amount of the combustible gas after complete combustion according to the flow and the components of the combustible gas, and calculate the heat demand amount of coal coking according to the coal parameters, the production task and the target temperature;
a comparison module 30 configured to compare the heat supply amount with the heat demand amount;
the calculation module 20 is further configured to calculate a first amount of air required for complete combustion of the combustible gas when the amount of heat supplied is less than or equal to the amount of heat required; when the heat supply amount is larger than the heat demand amount, calculating a second air amount required when the heat supply amount of the incomplete combustion of the combustible gas is equal to the heat demand amount;
the control module 40 is configured to control the air delivery device to deliver air into the furnace according to the first air quantity when the heat supply quantity is less than or equal to the heat demand quantity; the control module 40 is further configured to control the air delivery device to deliver air into the furnace based on the second air quantity when the heat supply is greater than the heat demand.
In some embodiments, the calculation module 20 is further configured to calculate a third air amount required for complete combustion of the remaining flue gas after incomplete combustion of the combustible gas in the second air amount when the heating amount of the combustible gas for complete combustion is greater than the heat demand amount; the control module 40 is further configured to control the air delivery device to deliver an amount of air to the external combustion device in accordance with a third amount of air.
In some embodiments, the acquisition module 10 is further configured to acquire a coking end coke temperature; the comparison module 30 is further configured to compare the coke temperature with a target temperature and obtain a difference between the coke temperature and the target temperature; the calculation module 20 is further configured to calculate a fourth air amount required for complete combustion or a fifth air amount required for incomplete combustion of the combustible gas, based on a difference between the coke temperature and the target temperature; the control module 40 is further configured to control the air delivery device to deliver air into the oven based on the fourth air quantity or the fifth air quantity.
In some embodiments, the obtaining module 10 is further configured to obtain the flue gas parameter information before and after combustion; the calculation module 20 is further configured to calculate a sixth air amount required for complete combustion of the flue gas according to the flue gas parameter information; the control module 40 is further configured to control the air delivery device to deliver air to the external combustion device according to a sixth air volume.
Referring to fig. 5, a coke oven system 200 according to a third aspect of the present application includes the heat recovery coke oven combustion degree control apparatus 100 according to any one of the second aspect of the present application.
In some embodiments, the coke oven system further includes a coke oven 210, an air delivery device 220, and an external combustion device 230, wherein the coke oven 210 is used for combustible gas combustion coking, the external combustion device 230 is communicated with the coke oven 210, the external combustion device 230 is used for delivering flue gas generated when combustible gas in the coke oven 210 is incompletely combusted into the external combustion device 230 for combustion, the air delivery device 220 is used for delivering air to the coke oven 210 and the external combustion device 230, the combustion degree control device 100 of the heat recovery coke oven is configured to calculate air amount, and the air delivery device 220 is configured to control the delivered air by the combustion degree control device 100 of the heat recovery coke oven according to the air amount or manually adjust the air delivery device 220 to deliver air according to the air amount.
In some embodiments, the air delivery device 220 further comprises an air flow meter. The air delivery device 220 is manually adjusted based on the calculated air amount, and the air amount delivered by the air delivery device 220 is adjusted to the calculated air amount based on the value fed back by the air flow meter.
In some embodiments, the coke oven system is provided with a plurality of temperature detectors 240, the external combustion device 230 is provided with a flue gas component detection device 250, the temperature detectors 240 are used for detecting coke temperature and the temperature of the flue gas before and after combustion, and the flue gas component detection device 250 is used for detecting the flue gas components before and after combustion.
The above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application are included in the protection scope of the present application.
Claims (10)
1. A method for controlling the combustion degree of a heat recovery coke oven is characterized by comprising the following steps:
acquiring the flow and component information of combustible gas generated by coal, and calculating the heat supply amount of the completely combusted combustible gas according to the flow and the components of the combustible gas;
acquiring coal parameters, a production task and a target temperature, and calculating the heat demand of coal coking according to the coal parameters, the production task and the target temperature;
comparing the heat supply quantity with the heat demand quantity;
when the heat supply amount is less than or equal to the heat demand amount, calculating a first air amount required by complete combustion of the combustible gas, and controlling an air conveying device to convey air into the furnace according to the first air amount;
and when the heat supply amount is greater than the heat demand amount, calculating a second air amount required when the heat supply amount of the incomplete combustion of the combustible gas is equal to the heat demand amount, and controlling an air conveying device to convey air into the furnace according to the second air amount.
2. The heat recovery coke oven combustion degree control method of claim 1, comprising:
and when the heat supply amount of the combustible gas in complete combustion is larger than the heat demand amount, calculating a third air amount required by complete combustion of residual flue gas of the combustible gas in incomplete combustion in the second air amount, and controlling the air delivery device to deliver air to an external combustion device according to the third air amount.
3. The heat recovery coke oven burn level control method of claim 1, comprising:
acquiring the coke temperature at the end of coking;
and comparing the difference between the coke temperature and the target temperature, calculating a fourth air quantity required by complete combustion or a fifth air quantity required by incomplete combustion of the combustible gas according to the difference, and controlling the air delivery device to deliver air into the furnace according to the fourth air quantity or the fifth air quantity.
4. The heat recovery coke oven burn level control method of claim 2, comprising:
acquiring smoke parameter information before and after smoke combustion;
and calculating a sixth air quantity required by the complete combustion of the flue gas according to the flue gas parameter information, and controlling the air quantity conveyed to the combustion device outside the furnace by the air conveying device according to the sixth air quantity.
5. A combustion degree control device for a heat recovery coke oven, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire flow and component information of combustible gas generated by coal, and acquire coal parameters, production tasks and target temperature;
the calculation module is configured to calculate the heat supply amount of the combustible gas after the combustible gas is completely combusted according to the flow and the components of the combustible gas, and calculate the heat demand amount of coal coking according to the coal parameters, the production tasks and the target temperature;
a comparison module configured to compare the heat supply amount with the heat demand amount;
the calculation module is further configured to calculate a first amount of air required for complete combustion of the combustible gas when the heat supply amount is less than or equal to the heat demand amount; when the heat supply amount is larger than the heat demand amount, calculating a second air amount required when the heat supply amount of the incomplete combustion of the combustible gas is equal to the heat demand amount;
the control module is configured to control the air conveying device to convey air into the furnace according to the first air quantity when the heat supply quantity is smaller than or equal to the heat demand quantity; the control module is further configured to control the air delivery device to deliver air into the furnace according to the second air quantity when the heat supply quantity is greater than the heat demand quantity.
6. The heat recovery coke oven burn level control apparatus of claim 5 wherein the calculation module is further configured to calculate a third air amount required for complete combustion of the remaining flue gas after incomplete combustion of the combustible gas in the second air amount when the heat supply amount of complete combustion of the combustible gas is greater than the heat demand amount;
the control module is further configured to control the air delivery device to deliver an amount of air to an off-furnace combustion device based on the third amount of air.
7. The heat recovery coke oven combustion degree control apparatus as claimed in claim 5,
the acquisition module is further configured to acquire a coke temperature at the end of coking;
the comparison module is further configured to compare the coke temperature to the target temperature and obtain a difference between the coke temperature and the target temperature;
the calculation module is further configured to calculate a fourth air amount required for complete combustion or a fifth air amount required for incomplete combustion of the combustible gas, based on a difference between the coke temperature and the target temperature;
the control module is further configured to control the air delivery device to deliver air into the oven based on the fourth or fifth amount of air.
8. The heat recovery coke oven combustion degree control apparatus as claimed in claim 6,
the acquisition module is further configured to acquire pre-combustion and post-combustion flue gas parameter information;
the calculation module is further configured to calculate a sixth air amount required for complete combustion of the flue gas according to the flue gas parameter information;
the control module is further configured to control delivery of air by the air delivery device to the external combustion device in accordance with the sixth air volume.
9. A coke oven system comprising the heat recovery coke oven combustion degree control apparatus according to any one of claims 5 to 8, the coke oven system also comprises a coke oven, an air conveying device and an external combustion device, the coke oven is used for the combustion coking of combustible gas, the external combustion device is communicated with the coke oven and is used for conveying flue gas generated when combustible gas in the coke oven is incompletely combusted into the external combustion device for combustion, the air delivery device is used for delivering air to the coke oven and the external combustion device, the combustion degree control device of the heat recovery coke oven is configured to calculate the air amount, the air conveying device is configured to control conveying air by the combustion degree control device of the heat recovery coke oven according to the air amount, or manually adjust conveying air of the air conveying device according to the air amount.
10. The coke oven system of claim 9 wherein the coke oven system is provided with a plurality of temperature detectors, and wherein the external combustion device is provided with a flue gas composition detection device, the temperature detectors being configured to detect coke temperature and the temperature of the flue gas before and after combustion, the flue gas composition detection device being configured to detect the flue gas composition before and after combustion.
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| CN202210688306.5A CN115074141B (en) | 2022-06-17 | 2022-06-17 | Method and device for controlling combustion degree of heat recovery coke oven and coke oven system |
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