CN116624886A - Sintering combustion control system - Google Patents

Sintering combustion control system Download PDF

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Publication number
CN116624886A
CN116624886A CN202310601864.8A CN202310601864A CN116624886A CN 116624886 A CN116624886 A CN 116624886A CN 202310601864 A CN202310601864 A CN 202310601864A CN 116624886 A CN116624886 A CN 116624886A
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China
Prior art keywords
value
gas
set value
air
air flow
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Pending
Application number
CN202310601864.8A
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Chinese (zh)
Inventor
李倩
刘俊杰
张弘弢
桑克万
尚庆强
王彩琴
李振山
盛丽娜
陈靖
蒋海波
吴鹏
李伟
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Shanxin Software Co Ltd
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Shanxin Software Co Ltd
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Application filed by Shanxin Software Co Ltd filed Critical Shanxin Software Co Ltd
Priority to CN202310601864.8A priority Critical patent/CN116624886A/en
Publication of CN116624886A publication Critical patent/CN116624886A/en
Pending legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
    • G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N1/00—Regulating fuel supply
    • F23N1/02—Regulating fuel supply conjointly with air supply
    • F23N1/027—Regulating fuel supply conjointly with air supply using mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
    • F27D2019/004—Fuel quantity
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D19/00—Arrangements of controlling devices
    • F27D2019/0028—Regulation
    • F27D2019/0034—Regulation through control of a heating quantity such as fuel, oxidant or intensity of current
    • F27D2019/004—Fuel quantity
    • F27D2019/0043—Amount of air or O2 to the burner

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Automation & Control Theory (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

The application provides a sintering combustion control system which comprises a sensor module, a calculation module and a control module, wherein the sintering is controlled by the gas flow, the air flow, the intensity and the temperature. When the sintering and regulating material is thick, selecting flow control, and automatically regulating the opening of the gas or air regulating valve at intervals by deviation change based on target flow and feedback flow; selecting intensity control under the condition that the sintering ignition temperature is stable, setting the deviation between the intensity and the calculated actual intensity, and automatically setting the numerical value of the gas flow through calculation; when the deviation between the temperature and the gas flow is relatively large, the deviation between the total gas flow and the temperature of the hearth of the ignition furnace is detected, the value which needs to be regulated by the coke oven gas regulating valve is calculated, and finally, the setting of the gas regulating valve is regulated and controlled. The application provides a more accurate and reliable combustion control method by controlling the sintering together by the gas flow, the air flow, the intensity and the temperature.

Description

Sintering combustion control system
Technical Field
The application relates to the field of automatic control in the steel industry, in particular to a sintering combustion control system.
Background
The combustion control adopted by sintering basically adopts manual adjustment or PID control. The PID algorithm is proportional (proportional), integral (integral), derivative (derivative), and is a common control algorithm that keeps stable. In the control of a closed loop system, the PID algorithm can automatically correct the control system accurately and rapidly.
The opening degree of the gas regulating valve is controlled by setting the gas flow rate and feeding back the gas flow rate, or the opening degree of the air regulating valve is controlled by setting the gas flow rate and the air-fuel ratio (i.e., the set air flow rate). The method is simple, but has low timeliness and practicability, and aims to supply enough heat to fully burn fuel, and the method can lead to insufficient fuel combustion and directly affect the normal sintering process and the quality of the sinter.
Disclosure of Invention
In order to solve the problem that fuel cannot be fully combusted due to untimely adjustment of the opening of a valve, the application provides a sintering combustion control system, which comprises a sensor module, a calculation module and a control module, wherein the sensor module is configured to:
acquiring a gas flow feedback value of a gas branch pipe, and sending the gas flow feedback value to a calculation module;
the computing module is configured to:
after receiving the gas flow feedback value, calculating the absolute value of a gas flow difference between a gas flow set value and the gas flow feedback value;
when the absolute value of the gas flow difference is more than 70Nm 3 Dividing the gas flow difference by 10 and multiplying by a gas flow fine adjustment coefficient to obtain the opening increment of the gas valve;
calculating the sum of the opening increment of the gas valve and the gas flow set value to obtain a new opening set value of the gas valve, and sending the new opening set value of the gas valve to the control module;
the control module is configured to:
and after receiving the new opening set value of the gas valve, adjusting the output quantity of the gas valve according to the new opening set value of the gas valve.
Optionally, the sensor module in the sintering combustion control system is further configured to:
and after the gas branch pipe is acquired for 10 seconds at one time, the flow of the gas branch pipe is acquired again to refresh the gas flow feedback value, and the refreshed gas flow feedback value is sent to the calculation module.
Optionally, the absolute value of the opening increment of the gas valve is less than or equal to 0.7Nm 3 /h。
Optionally, the sensor module in the sintering combustion control system is further configured to:
acquiring an air flow feedback value and sending the air flow feedback value to a calculation module;
the computing module is configured to:
receiving the air flow feedback value, and calculating the absolute value of the difference value between the product of the gas flow set value and the set air-fuel ratio and the air flow feedback value to obtain a first air flow difference value;
if the first air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
Optionally, the sensor module in the sintering combustion control system is further configured to:
acquiring an air flow feedback value and sending the air flow feedback value to a calculation module;
the computing module is configured to:
calculating the absolute value of the difference value between the air flow set value and the air flow feedback value to obtain a second air flow difference value;
if the second air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
Optionally, the sensor module in the sintering combustion control system is further configured to:
and after the air flow feedback value is acquired once for 10 seconds, re-acquiring and refreshing the air flow feedback value, and sending the refreshed air flow feedback value to the calculation module.
Optionally, the calculation module in the sintering combustion control system is further configured to:
receiving the gas flow feedback value, and calculating an ignition intensity feedback value by combining the gas flow feedback value, the gas heat value, the sintering machine speed and the sintering machine trolley width;
if the absolute value of the difference between the ignition intensity set value and the ignition intensity feedback value is greater than 0.7Nm 3 And h, calculating a new gas flow set value by combining the ignition intensity set value, the sintering machine speed, the sintering machine trolley width and the gas heat value, and updating the value of the gas flow set value into the value of the new gas flow set value.
Optionally, the calculation module in the sintering combustion control system is further configured to:
after the completion of the primary update for 20 seconds, the procedure of updating the gas flow rate set point was executed again.
Optionally, the sensor module in the sintering combustion control system is configured to:
acquiring and sending a total flow value of the gas branch pipe and a furnace chamber temperature value at the left side of the ignition furnace to the calculation module;
the computing module is configured to:
receiving the total flow value of the gas branch pipe and the furnace chamber temperature value at the left side of the ignition furnace;
if the total flow value of the gas branch pipe is less than 2400Nm 3 /h or greater than 2600Nm 3 And/h, and calculating an air valve adjustment increment when the temperature value of the furnace chamber at the left side of the ignition furnace is larger than 500 ℃ and smaller than 1000 ℃ or larger than 1100 ℃ and smaller than 2000 ℃;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
Optionally, the sensor module in the sintering combustion control system is further configured to:
and after finishing one-time acquisition for 5 minutes, re-acquiring and refreshing the total flow value of the gas branch pipe and the temperature value of the furnace chamber at the left side of the ignition furnace, and sending the refreshed total flow value of the gas branch pipe and the refreshed temperature value of the furnace chamber at the left side of the ignition furnace to a calculation module.
The application provides a sintering combustion control system which comprises a sensor module, a calculation module and a control module, wherein the sintering is controlled by the gas flow, the air flow, the intensity and the temperature. When the sintering and regulating material is thick, selecting flow control, and automatically regulating the opening of the gas or air regulating valve by changing the interval based on the deviation of the target flow and the feedback flow; selecting intensity control under the condition that the sintering ignition temperature is stable, setting the deviation between the intensity and the calculated actual intensity, and automatically setting the numerical value of the gas flow through calculation; when the deviation between the temperature and the gas flow is relatively large, the deviation between the total gas flow and the temperature of the hearth of the ignition furnace is detected, the value which needs to be regulated by the coke oven gas regulating valve is calculated, and finally, the setting of the gas regulating valve is regulated and controlled. The application provides a more accurate and reliable combustion control method by controlling the sintering together by the gas flow, the air flow, the intensity and the temperature.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings that are needed in the embodiments will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
FIG. 1 is a schematic diagram of gas flow control in a control system for sintering combustion;
FIG. 2 is a schematic diagram of air control in a control system for sintering combustion;
FIG. 3 is a schematic diagram of ignition intensity control in a control system for sintering combustion;
FIG. 4 is a schematic diagram of temperature control in a control system for sintering combustion.
Detailed Description
Reference will now be made in detail to the embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The embodiments described in the examples below do not represent all embodiments consistent with the application. Merely exemplary of systems and methods consistent with aspects of the application as set forth in the claims.
As shown in FIG. 1, the control diagram of the gas flow in the control system of sintering combustion is shown (Delt_gase is the opening increment of the gas valve, sp_gase is the gas flow set value, pv_gase is the gas flow feedback value, sp_valve_gase is the new opening set value of the gas valve, and K1 is the gas flow fine adjustment coefficient). The gas flow control is to automatically adjust the opening of the gas regulating valve based on the gas flow set value and the gas flow feedback value.
When the deviation of the gas flow of the gas branch pipe is large, subtracting the gas flow feedback value from the gas flow set value of the coke oven gas branch pipe, dividing by 10 to calculate the increment of the valve, multiplying the corresponding gas flow fine adjustment coefficient according to the actual situation, and controlling the opening increment of the gas valve to be plus or minus 0.7Nm 3 And (3) adding the calculated opening increment of the gas valve to the corresponding gas flow set value for output, wherein the valve output range is controlled to be 10% -30%. The valve position output adjustment period is triggered every 10 seconds.
In some embodiments, the sensor module is configured to: and acquiring a gas flow feedback value of a gas branch pipe, and sending the gas flow feedback value to a calculation module. The computing module is configured to: after receiving the gas flow feedback value, calculating the gas flow settingAn absolute value of a gas flow difference between the value and the gas flow feedback value; when the absolute value of the gas flow difference is more than 70Nm 3 Dividing the gas flow difference by 10 and multiplying by a gas flow fine adjustment coefficient to obtain the opening increment of the gas valve; calculating the sum of the opening increment of the gas valve and the gas flow set value to obtain a new opening set value of the gas valve, and sending the new opening set value of the gas valve to the control module. The control module is configured to adjust the output of the gas valve according to the new opening set value of the gas valve after receiving the new opening set value of the gas valve.
After the sensor module acquires the flow of the gas branch pipe again for 10 seconds, the gas flow feedback value is refreshed, and the refreshed gas flow feedback value is sent to the calculation module. The absolute value of the opening increment of the gas valve is less than or equal to 0.7Nm 3 /h。
As shown in fig. 2, the air control diagram in the control system of the sintering combustion is shown (Delt_air is an air valve adjustment increment; sp_air is an air flow set value; pv_air is an air flow feedback value; sp_valve_air is an air valve new opening set value; nport is a set air-fuel ratio; and K2 is an air flow fine adjustment coefficient). The air flow control is to automatically adjust the opening of the air valve based on the air flow set value and the air flow feedback value, or calculate the air flow set value based on the gas flow set value and the set air-fuel ratio to adjust the opening of the air valve.
When the air flow deviation is large, subtracting an air flow feedback value from the air flow set value; or after the air-fuel ratio is set, the air flow feedback value is subtracted by multiplying the set air-fuel ratio by the set air-fuel ratio of the gas flow, the valve increment is calculated by dividing by 10, and the valve opening increment is controlled to be plus or minus 1.5Nm according to the corresponding air flow fine adjustment coefficient multiplied by the actual situation 3 And (3) adding the calculated air valve adjustment increment to the corresponding air flow set value output between/h, and controlling the valve output range to be 28% -50%. The valve position output adjustment period is triggered every 10 seconds.
In some embodiments, the transmissionThe sensor module is configured to: and acquiring an air flow feedback value and sending the air flow feedback value to a calculation module. The computing module is configured to: receiving the air flow feedback value, and calculating the absolute value of the difference value between the product of the gas flow set value and the set air-fuel ratio and the air flow feedback value to obtain a first air flow difference value; if the first air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment; and calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module. The control module is configured to: and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
In some embodiments, the sensor module is configured to: and acquiring an air flow feedback value and sending the air flow feedback value to a calculation module. The computing module is configured to: calculating the absolute value of the difference value between the air flow set value and the air flow feedback value to obtain a second air flow difference value; if the second air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment; and calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module. The control module is configured to: and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
In some embodiments, after completing the acquisition for 10 seconds, the sensor module re-acquires and refreshes the air flow feedback value and sends the refreshed air flow feedback value to the calculation module.
As shown in fig. 3, an ignition intensity control diagram in a control system of sintering combustion is shown (fire_intensity_pv is an ignition intensity feedback value; fire_intensity_sp is an ignition intensity set value; pv_gas is a gas flow feedback value; sp_flow_gas is a new gas flow set value; ca is a gas heat value; speed_sm is a sintering machine speed (m/min), and width_troiley is a sintering machine trolley width). The intensity control is based on the deviation between the ignition intensity set value and the calculated ignition intensity feedback value, and the gas flow set value is automatically updated through calculation.
And (3) calculating an ignition intensity feedback value: the coke oven gas branch flow is multiplied by the gas heat value, divided by the sintering machine speed (m/min) and divided by 60 (m/s) and multiplied by the sintering machine vehicle width. When the ignition intensity deviation is large, the ignition intensity set value is multiplied by the speed of the sintering machine, the width of the trolley is multiplied by the heat value of the gas, and the value is multiplied by 60 (converted into seconds), so that a new gas flow set value is calculated and assigned. And limiting the output range to 800Nm 3 /h to 1600Nm 3 And/h, triggering the gas flow adjustment period every 20 seconds.
In some embodiments, the computing module is further configured to: receiving the gas flow feedback value, and calculating an ignition intensity feedback value by combining the gas flow feedback value, the gas heat value, the sintering machine speed and the sintering machine trolley width; if the absolute value of the difference between the ignition intensity set value and the ignition intensity feedback value is greater than 0.7Nm 3 And h, calculating a new gas flow set value by combining the ignition intensity set value, the sintering machine speed, the sintering machine trolley width and the gas heat value, and updating the value of the gas flow set value into the value of the new gas flow set value. After the completion of the primary update for 20 seconds, the procedure of updating the gas flow rate set point was executed again.
As shown in FIG. 4, a temperature control diagram in a control system of sintering combustion is shown (flow_gase is a total flow value of a gas branch pipe; tfire is a left side furnace temperature value of an ignition furnace; taim is an ignition temperature set value; delt_air is an air valve adjustment increment; sp_valve_air is a new opening set value of an air valve; pv_valve_gase_ase is a valve position feedback east of a gas regulating valve; pv_valve_gase_west is a valve position feedback west of the gas regulating valve).
In some embodiments of the present application, in some embodiments,when the total flow value of the coke oven gas branch pipe is less than 2400Nm 3 /h or greater than 2600Nm 3 And/h, judging that the temperature deviation is large when the temperature of the left side hearth of the simultaneous ignition furnace is more than 500 ℃ and less than 1000 ℃ or more than 1100 ℃ and less than 2000 ℃. The average value of the valve position feedback of the two coke oven gas flows is used as a basis, the basis is divided by the set hearth temperature, the corresponding temperature of the unit opening is calculated, the ignition temperature set value is subtracted from the hearth temperature value at the left side of the ignition furnace and divided by the corresponding temperature of the unit opening, and the value which needs to be adjusted by the regulating valve is obtained. When the condition is satisfied, the value to be adjusted is added to the valve position setting of the gas branch pipe regulating valve and output. The valve position output adjustment period is triggered every 5 minutes.
The application provides a sintering combustion control system which comprises a sensor module, a calculation module and a control module, wherein the sintering is controlled by the gas flow, the air flow, the intensity and the temperature. When the sintering and regulating material is thick, selecting flow control, and automatically regulating the opening of the gas or air regulating valve by changing the interval based on the deviation of the target flow and the feedback flow; selecting intensity control under the condition that the sintering ignition temperature is stable, setting the deviation between the intensity and the calculated actual intensity, and automatically setting the numerical value of the gas flow through calculation; when the deviation between the temperature and the gas flow is relatively large, the deviation between the total gas flow and the temperature of the hearth of the ignition furnace is detected, the value which needs to be regulated by the coke oven gas regulating valve is calculated, and finally, the setting of the gas regulating valve is regulated and controlled. The application provides a more accurate and reliable combustion control method by controlling the sintering together by the gas flow, the air flow, the intensity and the temperature.
The above-provided detailed description is merely a few examples under the general inventive concept and does not limit the scope of the present application. Any other embodiments which are extended according to the solution of the application without inventive effort fall within the scope of protection of the application for a person skilled in the art.

Claims (10)

1. A sintering combustion control system comprising a sensor module, a calculation module, and a control module, the sensor module configured to:
acquiring a gas flow feedback value of a gas branch pipe, and sending the gas flow feedback value to a calculation module;
the computing module is configured to:
after receiving the gas flow feedback value, calculating the absolute value of a gas flow difference between a gas flow set value and the gas flow feedback value;
when the absolute value of the gas flow difference is more than 70Nm 3 Dividing the gas flow difference by 10 and multiplying by a gas flow fine adjustment coefficient to obtain the opening increment of the gas valve;
calculating the sum of the opening increment of the gas valve and the gas flow set value to obtain a new opening set value of the gas valve, and sending the new opening set value of the gas valve to the control module;
the control module is configured to:
and after receiving the new opening set value of the gas valve, adjusting the output quantity of the gas valve according to the new opening set value of the gas valve.
2. The sintering combustion control system of claim 1, wherein the sensor module is further configured to:
and after the gas branch pipe is acquired for 10 seconds at one time, the flow of the gas branch pipe is acquired again to refresh the gas flow feedback value, and the refreshed gas flow feedback value is sent to the calculation module.
3. The sinter combustion control system as claimed in claim 2, wherein an absolute value of the gas valve opening increment is less than or equal to 0.7Nm 3 /h。
4. The sintering combustion control system of claim 3 wherein the sensor module is further configured to:
acquiring an air flow feedback value and sending the air flow feedback value to a calculation module;
the computing module is configured to:
receiving the air flow feedback value, and calculating the absolute value of the difference value between the product of the gas flow set value and the set air-fuel ratio and the air flow feedback value to obtain a first air flow difference value;
if the first air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
5. The sintering combustion control system of claim 3 wherein the sensor module is further configured to:
acquiring an air flow feedback value and sending the air flow feedback value to a calculation module;
the computing module is configured to:
calculating the absolute value of the difference value between the air flow set value and the air flow feedback value to obtain a second air flow difference value;
if the second air flow difference is greater than 50Nm 3 Dividing the difference between the air flow set value and the air flow feedback value by 10, and multiplying the air flow set value and the air flow feedback value by an air flow fine adjustment coefficient to obtain an air valve adjustment increment;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
6. The sintering combustion control system of claim 4 or 5 wherein the sensor module is further configured to:
and after the air flow feedback value is acquired once for 10 seconds, re-acquiring and refreshing the air flow feedback value, and sending the refreshed air flow feedback value to the calculation module.
7. The sintering combustion control system of claim 6 wherein the calculation module is further configured to:
receiving the gas flow feedback value, and calculating an ignition intensity feedback value by combining the gas flow feedback value, the gas heat value, the sintering machine speed and the sintering machine trolley width;
if the absolute value of the difference between the ignition intensity set value and the ignition intensity feedback value is greater than 0.7Nm 3 And h, calculating a new gas flow set value by combining the ignition intensity set value, the sintering machine speed, the sintering machine trolley width and the gas heat value, and updating the value of the gas flow set value into the value of the new gas flow set value.
8. The sintering combustion control system of claim 7 wherein the calculation module is further configured to:
after the completion of the primary update for 20 seconds, the procedure of updating the gas flow rate set point was executed again.
9. The sintering combustion control system of claim 8, wherein the sensor module is configured to:
acquiring and sending a total flow value of the gas branch pipe and a furnace chamber temperature value at the left side of the ignition furnace to the calculation module;
the computing module is configured to:
receiving the total flow value of the gas branch pipe and the furnace chamber temperature value at the left side of the ignition furnace;
if the total flow value of the gas branch pipe is less than 2400Nm 3 /h or greater than 2600Nm 3 And/h, and calculating an air valve adjustment increment when the temperature value of the furnace chamber at the left side of the ignition furnace is larger than 500 ℃ and smaller than 1000 ℃ or larger than 1100 ℃ and smaller than 2000 ℃;
calculating the sum of the air valve adjustment increment and the air flow set value to obtain a new air valve opening set value, and sending the new air valve opening set value to the control module;
the control module is configured to:
and after receiving the new opening set value of the air valve, adjusting the output quantity of the air valve according to the new opening set value of the air valve.
10. The sintering combustion control system of claim 9, wherein the sensor module is further configured to:
and after finishing one-time acquisition for 5 minutes, re-acquiring and refreshing the total flow value of the gas branch pipe and the temperature value of the furnace chamber at the left side of the ignition furnace, and sending the refreshed total flow value of the gas branch pipe and the refreshed temperature value of the furnace chamber at the left side of the ignition furnace to a calculation module.
CN202310601864.8A 2023-05-24 2023-05-24 Sintering combustion control system Pending CN116624886A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310601864.8A CN116624886A (en) 2023-05-24 2023-05-24 Sintering combustion control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310601864.8A CN116624886A (en) 2023-05-24 2023-05-24 Sintering combustion control system

Publications (1)

Publication Number Publication Date
CN116624886A true CN116624886A (en) 2023-08-22

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Country Status (1)

Country Link
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