Intelligent sintering air leakage monitoring method
By constructing a monitoring module and a data calculation module in the sintering production system, the problem of high air leakage rate in the sintering system was solved, enabling comprehensive and accurate monitoring and timely early warning of air leakage, thereby improving production efficiency and quality.
Patent Information
- Application Number
- CN202511515954.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-22
- Publication Date
- 2026-01-16
AI Technical Summary
Existing sintering production systems struggle to comprehensively and accurately monitor air leakage, resulting in high leakage rates that negatively impact production efficiency and quality.
By constructing a basic setting module to adjust key sintering parameters, setting up a monitoring and deployment module to install oxygen and temperature measurement points at key locations, building a data acquisition module to acquire relevant data, establishing a data calculation module to calculate the air leakage rate, and establishing an early warning display module to provide abnormal warnings.
It enables comprehensive, accurate, and dynamic monitoring of the sintering air leakage system, timely detection of defects, and provides highly accurate and real-time monitoring tools to ensure production stability and optimization measures.
Smart Images
Figure CN121346544A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of sintering production technology, specifically to an intelligent method for monitoring air leakage during sintering. Background Technology
[0002] Sintering is the first and most crucial comprehensive production process in the iron and steel smelting process. It involves mixing various powdered iron-containing raw materials, appropriate amounts of fuel and flux in a specific ratio, adding a certain amount of water, and then forming sintered material through mixing and pelletizing. The sintered material is then laid on the trolley of a belt-driven sintering machine. Ignition causes the fuel in the mixture to burn, and the high temperatures generated by the combustion of carbon and the oxidation of iron minerals soften and melt some of the materials, resulting in a series of physicochemical reactions and the formation of a certain amount of liquid phase. During the cooling process, these substances bind together to form lumpy sintered ore.
[0003] Air leakage during sintering is a common problem in the sintering production process. Existing sintering systems suffer from serious air leakage. Furthermore, the leakage points in the sintering machine are constantly changing, making it difficult to monitor the real-time dynamic changes in air leakage during the sintering process. Consequently, it is impossible to take targeted measures to reduce the air leakage rate, leading to an increase in the amount of carbon used in sintering and a decrease in the output and quality of the sintering system. Summary of the Invention
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this invention provides an intelligent method for monitoring air leakage in sintering processes. This method comprehensively and accurately presents the degree of air leakage throughout the entire production process, avoiding the neglect of overall issues due to focusing only on local areas. It enables comprehensive and dynamic monitoring of the sintering air leakage system, allowing for timely detection of defects in the sintering system and targeted intervention. This provides a highly accurate, long-cycle, real-time intelligent monitoring tool for sintering system testing.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, the present invention provides the following technical solution: a method for intelligently monitoring sintering air leakage, comprising the following steps: Step 1: Construct a basic setting module to adjust key sintering parameters through an automated control system to stabilize the sintering production state and obtain the sintering process parameters under stable conditions. Then, calculate the stable total oxygen content based on the sintering process parameters. Step 2: Set up a monitoring deployment module to install oxygen measurement points in the flue of each branch air box to monitor the oxygen content in the flue, deploy oxygen measurement points and temperature measurement points at the inlet and outlet of the sintering dust collector to monitor the performance parameters of the dust collector, and deploy oxygen measurement points and temperature measurement points at the inlet and outlet of the sintering exhaust fan to monitor the performance parameters of the exhaust fan. Step 3: Build a data acquisition module to acquire flue gas oxygen content data, dust collector performance parameters, and exhaust fan performance parameters monitored through oxygen and temperature measurement points. Step 4: Establish a data calculation module to calculate the vehicle leakage rate based on the oxygen content in the flue, the dust removal system leakage rate based on the dust collector performance parameters, and the exhaust fan leakage rate based on the exhaust fan performance parameters. Combine the multiple calculation results to calculate the overall leakage rate. Step 5: Establish an early warning display module to issue abnormal early warnings based on the comprehensive air leakage rate, and simultaneously display the monitoring process and results on the linked display screen.
[0008] Preferably, the sintering process operating parameters under steady-state conditions include the total air intake volume and the corresponding oxygen content percentage monitored at multiple time points under steady-state conditions. The expression for the sintering process operating parameters is as follows: ,in, The sintering process parameters represent the first time point in the steady state. Represents the first in the steady state Sintering process parameters at each time point This represents the total number of time points during which sintering process parameters are monitored under steady-state conditions. This represents the total air intake volume in the sintering process operating parameters at the corresponding time point. The percentage of air oxygen content in the sintering process parameters at the corresponding time point.
[0009] Preferably, the formula for calculating the stable total oxygen content is: ; In the formula, This represents the total oxygen content. Represents a dynamic index, which is the index in the stable state. Sintering process parameters monitored at various time points Representing the The total air intake volume is one of the sintering process operating parameters monitored at each time point. Representing the The percentage of air oxygen content in the sintering process operating parameters monitored at each time point; The average of the total oxygen content monitored at all time points is the stable total oxygen content.
[0010] Preferably, the flue gas oxygen content data includes multiple flue gas oxygen contents monitored by installing multiple oxygen measuring points in each branch bellows flue, and the expression for the flue gas oxygen content data is: ,in, This represents the oxygen content of the first flue gas duct monitored at the first oxygen measurement point installed in the bellows flue of each branch. The representative of the installation of bellows and flues in each branch The oxygen monitoring point was the first Oxygen content in each flue It also indicates the number of oxygen measurement points installed in the branch's bellows flue and the amount of data on the flue oxygen content monitored through these points.
[0011] Preferably, the performance parameters of the dust collector include the oxygen content of the inlet flue gas, the oxygen content of the outlet flue gas, the temperature of the inlet flue gas, and the temperature of the outlet flue gas. The expression for the performance parameters of the dust collector is as follows: ,in, This represents the oxygen content of the inlet flue gas. This represents the oxygen content of the exported flue gas. Represents the inlet flue gas temperature. Represents the outlet flue gas temperature; The performance parameters of the exhaust fan include the oxygen content in the front duct, the oxygen content in the rear duct, the temperature in the front duct, and the temperature in the rear duct. The expression for the performance parameters of the exhaust fan is: ,in, This represents the oxygen content in the upstream pipeline. This represents the oxygen content in the downstream pipeline. Represents the temperature of the upstream pipe. This represents the temperature of the downstream pipe.
[0012] Preferably, the formula for calculating the air leakage rate of the vehicle platform is: ; In the formula, Represents the air leakage rate of the vehicle platform. This represents the oxygen content consumed during fuel combustion in the sintering process. Representing the The actual air volume of each bellows. Representing the Oxygen content in each flue.
[0013] Preferably, the formula for calculating the air leakage rate of the dust removal system is: ; In the formula, This represents the air leakage rate of the dust removal system. This represents the oxygen content of the inlet flue gas. This represents the oxygen content of the exported flue gas. Represents the oxygen content of the outside air. Represents the inlet flue gas temperature. Represents the outlet flue gas temperature. Represents the temperature of the outside air; 0.4 represents the weight of the oxygen balance method, and 0.4 represents the weight of the heat balance method.
[0014] Preferably, the formula for calculating the air leakage rate of the exhaust fan is: ; In the formula, This represents the air leakage rate of the exhaust fan. This represents the oxygen content in the upstream pipeline. This represents the oxygen content in the downstream pipeline. Represents the oxygen content of the outside air. Represents the temperature of the upstream pipe. Represents the temperature of the downstream pipe. Represents the temperature of the outside air; 0.4 represents the weight of the oxygen balance method, and 0.4 represents the weight of the heat balance method.
[0015] Preferably, the formula for calculating the overall air leakage rate is as follows: ; In the formula, This represents the overall air leakage rate.
[0016] Preferably, the overall air leakage rate is compared with the overall air leakage rate threshold. When the overall air leakage rate is greater than the overall air leakage rate threshold, it indicates that there is air leakage in the current sintering system, and an abnormal warning needs to be issued.
[0017] Compared with the prior art, the present invention provides an intelligent method for monitoring air leakage in sintering processes, which has the following beneficial effects: 1. This invention calculates the stable total oxygen content by combining the sintering process parameters under stable conditions monitored at multiple time points. This improves the accuracy of the data, effectively smooths out the noise caused by short-term disturbances, and makes the results closer to the average level under real working conditions. This provides a more stable benchmark for subsequent air leakage rate calculations and ensures the robustness and accuracy of the basic data.
[0018] 2. This invention monitors the oxygen content in the flue gas by installing oxygen measuring points in each branch's air box flue, monitors the dust collector's performance parameters by deploying oxygen and temperature measuring points at the inlet and outlet of the sintering dust collector, and monitors the exhaust fan's performance parameters by deploying oxygen and temperature measuring points at the inlet and outlet of the sintering exhaust fan. It then calculates the overall air leakage rate by calculating the leakage rate of the workpiece, the dust collection system, and the exhaust fan. This comprehensively and accurately presents the degree of air leakage throughout the entire production process, avoiding the neglect of overall issues due to focusing only on local factors. It provides a reliable data foundation for optimizing the production system and facilitates targeted solutions. It helps staff promptly detect potential air leakage hazards, prevents problems from escalating, ensures stable production operation, and achieves comprehensive dynamic monitoring of the sintering air leakage system. This allows for timely detection of defects in the sintering system and targeted intervention, providing a highly accurate, long-term, real-time, and intelligent monitoring tool for sintering system testing. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the method steps of the present invention; Figure 2 This is a schematic diagram of the workflow of the method of the present invention; Figure 3 This is a schematic diagram illustrating the monitoring deployment details in the monitoring deployment module of the method of the present invention. Detailed Implementation
[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0021] Please see Figures 1-3 A method for intelligently monitoring air leakage in sintering processes includes the following steps: Step 1: Construct a basic setting module to adjust key sintering parameters through an automated control system to stabilize the sintering production state and obtain the sintering process parameters under stable conditions. Then, calculate the stable total oxygen content based on the sintering process parameters. The sintering process parameters under steady-state conditions include the total air intake volume and the corresponding oxygen content percentage monitored at multiple time points under steady-state conditions. The expressions for the sintering process parameters are as follows: ,in, The sintering process parameters represent the first time point in the steady state. Represents the first in the steady state Sintering process parameters at each time point This represents the total number of time points during which sintering process parameters are monitored under steady-state conditions. This represents the total air intake volume in the sintering process operating parameters at the corresponding time point. The percentage of air oxygen content in the sintering process parameters at the corresponding time point; The formula for calculating the stable total oxygen content is: ; In the formula, This represents the total oxygen content. Represents a dynamic index, which is the index in the stable state. Sintering process parameters monitored at various time points Representing the The total air intake volume is one of the sintering process operating parameters monitored at each time point. Representing the The percentage of air oxygen content in the sintering process operating parameters monitored at each time point; The average of the total oxygen content monitored at all time points is the stable total oxygen content. By acquiring sintering process parameters under stable conditions monitored at multiple time points, and then calculating the stable total oxygen content based on the average of the product of the total air intake and the corresponding proportion of air oxygen content in the sintering process parameters under stable conditions monitored at multiple time points, the accuracy of the data can be improved, the noise caused by short-term disturbances can be effectively smoothed, and the results can be closer to the average level under real operating conditions. This provides a more stable benchmark for subsequent air leakage rate calculation, ensuring the robustness and accuracy of the basic data. Step 2: Set up a monitoring deployment module to install oxygen measurement points in the flue of each branch air box to monitor the oxygen content in the flue, deploy oxygen measurement points and temperature measurement points at the inlet and outlet of the sintering dust collector to monitor the performance parameters of the dust collector, and deploy oxygen measurement points and temperature measurement points at the inlet and outlet of the sintering exhaust fan to monitor the performance parameters of the exhaust fan. Step 3: Build a data acquisition module to acquire flue gas oxygen content data, dust collector performance parameters, and exhaust fan performance parameters monitored through oxygen and temperature measurement points. Flue gas oxygen content data includes multiple oxygen measurement points installed in the flue gas ducts of each branch, monitored for oxygen content. The expression for flue gas oxygen content data is as follows: ,in, This represents the oxygen content of the first flue gas duct monitored at the first oxygen measurement point installed in the bellows flue of each branch. The representative of the installation of bellows and flues in each branch The oxygen monitoring point was the first Oxygen content in each flue It also indicates the number of oxygen measurement points installed in the branch's bellows flue and the amount of data on the flue oxygen content monitored through these points. Oxygen measurement points are installed in the flue gas ducts of each branch to monitor the oxygen content in the flue gas, and the flue gas oxygen content data is generated and numbered. This can accurately capture the microscopic differences in oxygen content in the flue gas of different branches, breaking through the limitation of traditional single-point detection that cannot locate specific leaks. It can also be compared with the data of each branch to judge the operating conditions of different branches, detect potential sealing deterioration trends in advance, and provide precise spatiotemporal decision support for targeted maintenance. The performance parameters of a dust collector include the oxygen content of the inlet flue gas, the oxygen content of the outlet flue gas, the inlet flue gas temperature, and the outlet flue gas temperature. The expressions for the performance parameters of a dust collector are as follows: ,in, This represents the oxygen content of the inlet flue gas. This represents the oxygen content of the exported flue gas. Represents the inlet flue gas temperature. Represents the outlet flue gas temperature; Oxygen and temperature measurement points are deployed at the inlet and outlet of the sintering dust collector to monitor its performance parameters. These points are then numbered in conjunction with the inlet and outlet flue gas oxygen content and temperature to achieve bidirectional dynamic monitoring of the flue gas composition and thermodynamic characteristics. The inlet and outlet flue gas oxygen contents accurately quantify the amount of air mixed in during dust removal, thereby assessing the shell sealing, filter bag integrity, and the stability of the negative pressure system. Simultaneously, the inlet and outlet flue gas temperatures reflect the internal heat exchange efficiency and energy loss, aiding in the judgment of filter media blockage or damage. This constructs a dual verification system from mass conservation to energy balance, eliminating the risk of misjudgment caused by fluctuations in a single indicator and improving the accuracy of dust collector performance analysis. The performance parameters of the exhaust fan include the oxygen content in the upstream duct, the oxygen content in the downstream duct, the temperature in the upstream duct, and the temperature in the downstream duct. The expression for the performance parameters of the exhaust fan is: ,in, This represents the oxygen content in the upstream pipeline. This represents the oxygen content in the downstream pipeline. Represents the temperature of the upstream pipe. This represents the temperature of the downstream pipe; Oxygen and temperature measurement points were deployed at the inlet and outlet of the sintering exhaust fan to monitor its performance parameters. The oxygen content in the pipeline, the oxygen content in the downstream pipeline, and the temperature in the upstream and downstream pipelines were numbered to construct a precise aerodynamic performance monitoring system based on the exhaust fan. The system leakage rate was dynamically quantified by the oxygen content in the pipeline and the oxygen content in the downstream pipeline to reflect the leakage situation of the exhaust fan. The upstream and downstream pipeline temperatures can further verify the airflow efficiency and heat loss, providing a clear basis for the analysis of the exhaust fan's leakage situation. Step 4: Establish a data calculation module to calculate the vehicle leakage rate based on the oxygen content in the flue, the dust removal system leakage rate based on the dust collector performance parameters, and the exhaust fan leakage rate based on the exhaust fan performance parameters. Combine the multiple calculation results to calculate the overall leakage rate. The formula for calculating the air leakage rate of the vehicle platform is: ; In the formula, Represents the air leakage rate of the vehicle platform. This represents the oxygen content consumed during fuel combustion in the sintering process. Representing the The actual air volume of each bellows. Representing the Oxygen content in each flue; Calculating the air leakage rate of the vehicle based on flue oxygen content data can accurately reflect the air leakage situation of the vehicle, provide a quantitative indicator for evaluating the sealing performance of the vehicle, enable technicians to have an intuitive understanding of the equipment status, promptly identify equipment sealing problems, facilitate targeted inspection and maintenance, improve equipment operating efficiency, and reduce energy consumption. The formula for calculating the air leakage rate of a dust removal system is: ; In the formula, This represents the air leakage rate of the dust removal system. This represents the oxygen content of the inlet flue gas. This represents the oxygen content of the exported flue gas. Represents the oxygen content of the outside air. Represents the inlet flue gas temperature. Represents the outlet flue gas temperature. Represents the temperature of the outside air; 0.4 represents the weight of the oxygen balance method, and 0.4 represents the weight of the heat balance method. The oxygen balance method reflects air leakage by monitoring changes in the oxygen content of flue gas, while the heat balance method judges air leakage based on temperature changes. The formula for calculating the air leakage rate of a dust removal system is based on a combination of the oxygen balance method and the heat balance method. This allows for a comprehensive consideration of the air leakage of the dust removal system from two different perspectives: gas composition and energy. This approach captures air leakage information in the system more comprehensively, avoids the limitations and errors that may arise from a single method, and thus improves the accuracy of the air leakage rate calculation. The formula for calculating the air leakage rate of an exhaust fan is: ; In the formula, This represents the air leakage rate of the exhaust fan. This represents the oxygen content in the upstream pipeline. This represents the oxygen content in the downstream pipeline. Represents the oxygen content of the outside air. Represents the temperature of the upstream pipe. Represents the temperature of the downstream pipe. Represents the temperature of the outside air; 0.4 represents the weight of the oxygen balance method, and 0.4 represents the weight of the heat balance method. The formula for calculating the air leakage rate of the exhaust fan is the same as that for the dust removal system. It combines the oxygen balance method and the heat balance method to calculate the air leakage of the exhaust fan from different dimensions, thereby improving the accuracy of the air leakage detection of the exhaust fan and providing reliable support for sintering air leakage. The formula for calculating the overall air leakage rate is: ; In the formula, Represents the overall air leakage rate; The comprehensive air leakage rate is calculated by combining the air leakage rate of the sintering platform, the air leakage rate of the dust removal system, and the air leakage rate of the exhaust fan. This multi-dimensionally reflects the air leakage situation of the sintering system, comprehensively and accurately presents the degree of air leakage in the entire production process, and avoids ignoring the overall problem by focusing only on the local. This provides a reliable data foundation for the optimization of the production system, and at the same time facilitates the proposal of targeted solutions. It also helps staff to detect potential air leakage hazards in a timely manner, prevent the problem from escalating, and ensure the stable operation of production. Step 5: Establish an early warning display module to compare the overall air leakage rate with the overall air leakage rate threshold. When the overall air leakage rate is greater than the threshold, it indicates that there is air leakage in the current sintering system, and an abnormality warning needs to be issued. At the same time, the display screen is linked to display the monitoring process and monitoring results, realizing comprehensive dynamic monitoring of the sintering air leakage system, timely detection of defects in the sintering system, and targeted intervention. This provides a highly accurate, long-cycle, real-time intelligent monitoring tool for the detection of sintering systems.
[0022] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A method for intelligently monitoring air leakage in a sintering process, characterized by, Comprise the following steps: Step one, build the basic setting module, for adjusting the key parameters of sintering through the automatic control system, so that the sintering production state is stable, and the sintering process working condition parameters under the stable state are obtained, and then the total oxygen content is calculated based on the sintering process working condition parameters; Step two, set up monitoring deployment module, for installing oxygen measurement point in each branch wind box flue to monitor the oxygen content of flue, deploying oxygen measurement point and temperature measurement point at the inlet and outlet of sintering dust collector to monitor the performance parameters of dust collector, deploying oxygen measurement point and temperature measurement point at the inlet and outlet of sintering exhaust fan to monitor the performance parameters of exhaust fan; Step three, build data acquisition module, for acquiring the flue oxygen content data, dust collector performance parameters and exhaust fan performance parameters monitored by oxygen measurement point and temperature measurement point; Step four, establish data calculation module, calculate the car platform air leakage rate based on the oxygen content of flue, calculate the air leakage rate of dust removal system based on the performance parameters of dust collector, calculate the air leakage rate of exhaust fan based on the performance parameters of exhaust fan, and jointly calculate the comprehensive air leakage rate of multiple calculation results; Step five, establish early warning display module, for abnormal early warning based on the comprehensive air leakage rate, and simultaneously display the monitoring process and monitoring results on the display screen.
2. The intelligent monitoring method for sintering air leakage according to claim 1, characterized in that: The sintering process working condition parameters in the stable state include total air inlet quantity and air oxygen content proportion corresponding to a plurality of time points in the stable state, and an expression of the sintering process working condition parameters is: Wherein, represents the sintering process working condition parameters of the first time point in the stable state, represents the sintering process working condition parameters of the first time point in the stable state, represents the sintering process working condition parameters of the first time point in the stable state, represents the number of total time points of the sintering process working condition parameters monitored in the stable state, represents the total air inlet quantity in the sintering process working condition parameters corresponding to the time point, represents the air oxygen content proportion in the sintering process working condition parameters corresponding to the time point.
3. The intelligent monitoring method for sintering air leakage according to claim 2, characterized in that: The calculation formula of the total oxygen content is: ； In the formula, represents the total oxygen content, represents a dynamic index, and is the sintering process working condition parameter monitored at the steady state, represents the total air volume in the sintering process working condition parameter monitored at the steady state, represents the air oxygen content ratio in the sintering process working condition parameter monitored at the steady state, The average of the total values representing the total oxygen content monitored at all time points, i.e. the stable total oxygen content, is determined.
4. The intelligent monitoring method for sintering air leakage according to claim 3, characterized in that: The flue oxygen content data includes multiple flue oxygen contents monitored by multiple oxygen measuring points installed in each branch flue, and the expression of the flue oxygen content data is as follows: Wherein, represents the first flue oxygen content monitored by the first oxygen measuring point installed in each branch flue, represents the first flue oxygen content monitored by the first oxygen measuring point installed in each branch flue, represents the first flue oxygen content monitored by the first oxygen measuring point installed in each branch flue, represents the first flue oxygen content monitored by the first oxygen measuring point installed in each branch flue, represents the number of oxygen measuring points installed in the branch flue and the number of data of the flue oxygen content monitored by the oxygen measuring points.
5. The intelligent monitoring method for detecting air leakage in a sintering process according to claim 4, wherein: The dust remover performance parameters include inlet flue gas oxygen content, outlet flue gas oxygen content, inlet flue gas temperature, and outlet flue gas temperature, and expressions of the dust remover performance parameters are as follows: wherein, represents the inlet flue gas oxygen content, represents the outlet flue gas oxygen content, represents the inlet flue gas temperature, represents the outlet flue gas temperature. The performance parameters of the air extractor include front-pipe oxygen content, rear-pipe oxygen content, front-pipe temperature and rear-pipe temperature, and the expression of the performance parameters of the air extractor is: wherein, represents the front-pipe oxygen content, represents the rear-pipe oxygen content, represents the front-pipe temperature, represents the rear-pipe temperature.
6. The intelligent monitoring method for sintering air leakage according to claim 5, characterized in that: The calculation formula of the car platform air leakage rate is: ； In the formula, represents the air leakage rate of the car, represents the oxygen content of the fuel combustion consumption in the sintering process, represents the actual air volume of the air bellow, represents the oxygen content of the flue.
7. The intelligent monitoring method for sintering air leakage according to claim 6, characterized in that: The calculation formula of the air leakage rate of dust removal system is: ； in the formula, represents the leakage rate of the dust removal system, represents the oxygen content of the inlet flue gas, represents the oxygen content of the outlet flue gas, represents the oxygen content of the ambient air, represents the temperature of the inlet flue gas, represents the temperature of the outlet flue gas, represents the temperature of the ambient air; Weight representing the oxygen balance method, 0.4 represents the weight of the heat balance method.
8. The intelligent monitoring method for sintering air leakage according to claim 7, characterized in that: The calculation formula of the air leakage rate of exhaust fan is: ； in the formula, represents the leakage rate of the suction fan, represents the oxygen content of the front pipe, represents the oxygen content of the rear pipe, represents the oxygen content of the outside air, represents the temperature of the front pipe, represents the temperature of the rear pipe, represents the temperature of the outside air; Weight representing the oxygen balance method, 0.4 represents the weight of the heat balance method.
9. The intelligent monitoring method for sintering air leakage according to claim 8, characterized in that: The calculation formula of the comprehensive air leakage rate is; ； In the formula, represents the overall air leakage rate.
10. The intelligent monitoring method for sintering air leakage according to claim 9, characterized in that: Compare the comprehensive air leakage rate with the comprehensive air leakage rate threshold value, when the comprehensive air leakage rate is greater than the comprehensive air leakage rate threshold value, it represents that there is air leakage in the current sintering system, which needs to be abnormally early warned.