Control method of sintering system, sintering system, and computer device and readable storage medium

Abstract

This invention belongs to the field of iron and steel smelting technology, specifically providing a sintering system, its control method, computer equipment, and a readable storage medium. The control method includes: determining the total carbon input of the sintering system based on the raw material mass at the feeding mechanism and the gas / fuel gas flow rate at the ignition mechanism; determining the total carbon emissions of the sintering system based on the gas flow rate, carbon dioxide content, and carbon monoxide content in the flue; obtaining the carbon consumption by subtracting the total carbon input from the total carbon emissions; determining whether the carbon consumption is less than a preset threshold for the total carbon input; if the carbon consumption is less than the preset threshold, determining that the combustion process is incomplete and generating a reminder message. This invention determines whether sintering is complete by calculating the overall carbon consumption of the sintering system and reminds the user to analyze the reasons for incomplete sintering, effectively improving the sintering efficiency of the sintering system and reducing sintering costs.

Description

Technical Field

[0001] This invention belongs to the field of iron and steel smelting technology, and specifically provides a control method for a sintering system, a sintering system, a computer device, and a readable storage medium. Background Technology

[0002] In the field of iron and steel smelting technology, the sintering process is the source of the entire iron and steel smelting process. Since the raw material cost of sintering accounts for a high proportion of the total cost of iron and steel smelting (approximately 40% to 60%), and the sintering process can also digest most of the by-products generated during the iron and steel smelting process, the sintering process is particularly important in the entire iron and steel smelting process.

[0003] In order to improve sintering efficiency and reduce sintering costs, whether combustion is complete during the sintering process has become one of the key concerns for operators. However, due to various factors such as the incomplete control of the sintering process, low visibility, and poor sintering environment, operators cannot make accurate judgments on it.

[0004] Therefore, the present invention provides a control method for judging whether the sintering system as a whole is fully combusted, so as to solve the above-mentioned problem. Summary of the Invention

[0005] One object of the present invention is to provide a sintering system control method that can determine whether the sintering system as a whole is fully combusted.

[0006] To achieve the above objectives, the present invention provides a control method for a sintering system, the sintering system including a feeding mechanism, an ignition mechanism, and a sintering mechanism, the sintering mechanism including a flue; the control method includes:

[0007] The total carbon input of the sintering system is determined based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism.

[0008] The total carbon emissions of the sintering system are determined based on the gas flow rate, carbon dioxide content, and carbon monoxide content in the flue.

[0009] The carbon consumption is obtained by subtracting the total carbon input from the total carbon emissions.

[0010] Determine whether the carbon consumption is less than a preset threshold for the total carbon input;

[0011] If the carbon consumption is less than a preset threshold of the total carbon input, the sintering process is determined to be incompletely combusted, and a reminder message is generated.

[0012] Furthermore, the step of determining the total carbon input based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism includes: determining a first carbon input quantity C based on the raw material mass at the feeding mechanism. 入1 The second carbon input C is determined based on the gaseous fuel gas flow rate at the ignition mechanism. 入2 The total carbon input C of the sintering system is obtained by adding the first carbon input amount and the second carbon input amount. 入 .

[0013] Further, the step of determining the first carbon input amount based on the raw material mass at the feeding mechanism includes: obtaining the mass W1 of solid fuel, the mass W2 of limestone, and the mass W3 of dolomite at the feed inlet; calculating the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite according to the obtained masses; and calculating the first carbon input amount C using the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite according to the following formula. 入1 :

[0014] C 入1 =C1+C2+C3; where C1=W1*c1, W1=W 01A +W 01B +……+W 01N Where c1 is the percentage of carbon content in solid fuel; W 01A It is the mass of solid fuel at the first feed inlet; W 01B It is the mass of solid fuel at the second feed inlet; W 01N It is the mass of solid fuel at the Nth feed inlet;

[0015] C2=W2*(M c1 / M 石灰石 M c1 M is the relative atomic mass of carbon in limestone; 石灰石 It is the relative molecular mass of limestone;

[0016] C3=W3*(M c2 / M 白云石 M c2 M is the relative atomic mass of carbon in dolomite; 白云石 It is the relative molecular mass of dolomite.

[0017] Furthermore, the ignition mechanism includes a fuel channel, and determining the second carbon input amount based on the gaseous fuel gas flow rate at the ignition mechanism includes: acquiring the gas flow rate Q2 in the gaseous fuel pipeline 31, and calculating the second carbon input amount C based on the acquired gas flow rate Q2. 入2 The formula is as follows:

[0018] C 入2 =Q2×α2×εμπω3, where α2 is the carbon percentage of the gaseous fuel; εμπω3 is the characteristic coefficient of different gaseous fuels.

[0019] Furthermore, the step of determining the total carbon emissions of the sintering system based on the gas flow rate, carbon dioxide content, and carbon monoxide content within the flue also includes: determining the carbon emissions of each flue based on the gas flow rate, carbon dioxide content, and carbon monoxide content of each flue; and calculating the total carbon emissions based on the carbon emissions of each flue using the following formula: C 出 =C 1A +C 1B +……+C 1N Among them, C 出 It is the total carbon emissions; C 1A It is the carbon emissions within the first flue; C 1B It is the carbon emissions within the second flue; C 1N It is the carbon emissions in the Nth flue.

[0020] Furthermore, the step of determining the carbon emissions of each flue based on the gas flow rate, carbon dioxide content, and carbon monoxide content of each flue also includes: based on the percentage of carbon dioxide γ in the first flue. 1A The percentage of carbon monoxide η 1A and gas flow rate Q 1A The carbon emissions C of the first flue are calculated according to the following formula. 1A :

[0021] C 1A =(M c1 / M CO2 )×(Q 1A ×γ 1A )×M CO2 / 22.4+(M c2 / M CO )×(Q 1A ×η 1A )×M CO / 22.4;

[0022] Based on the percentage of carbon dioxide γ in the second flue 1B The percentage of carbon monoxide η 1B and gas flow rate Q 1B The carbon emissions C of the second flue are calculated using the following formula. 1B :

[0023] C 1B =(M c1 / M CO2)×(Q 1B ×γ 1B )×M CO2 / 22.4+(M c2 / M CO )×(Q 1B ×η 1B )×M CO / 22.4;

[0024] Based on the percentage of carbon dioxide γ in the Nth flue 1N The percentage of carbon monoxide η 1N and gas flow rate Q 1N The carbon emission C of the Nth flue is calculated according to the following formula. 1N :

[0025] C 1N =(M c / M CO2 )×(Q 1N ×γ 1N )×M CO2 / 22.4+(M c / M CO )×(Q 1N ×η 1N )×M CO / 22.4;

[0026] Among them, M c1 M is the relative atomic mass of carbon in carbon dioxide. c2 M is the relative atomic mass of carbon in carbon monoxide. CO2 M is the relative molecular mass of carbon dioxide. CO It is the relative molecular mass of carbon monoxide.

[0027] Furthermore, the step of determining the total carbon input of the sintering system based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism further includes: based on the carbon content C in the ambient air... 空 Total carbon input C 入 After correction, the corrected total carbon input value C is obtained. 入-修正 The corrected formula is as follows: C 入-修正 =C 入 +C 空 .

[0028] Furthermore, the carbon content C in ambient air... 空 Total carbon input C 入 After correction, the corrected total carbon input value C is obtained. 入-修正The steps include: obtaining the ambient air gas flow rate; correcting the total carbon input based on the ambient air gas flow rate using the following formula to obtain the corrected total carbon input value:

[0029] C 空 =(Mc / M CO2 )×Q×β CO2 ×M CO2 / 22.4=(Mc / 22.4)×Q×β CO2 Where Mc is the relative atomic mass of carbon atoms in carbon dioxide; Q is the total gas flow rate in the flue; β CO2 It represents the percentage of carbon dioxide in the air;

[0030] Q = Q 1A +Q 1B +……+Q 1N Q 1A Q is the gas flow rate value in the first flue; 1B This is the gas flow rate value in the second flue; Q 1N It is the gas flow rate value in the Nth flue.

[0031] Furthermore, the step of determining incomplete combustion in the sintering process includes: acquiring historical data on the total carbon input, total carbon emissions, and carbon consumption of the sintering system within a preset time period; plotting change curves corresponding to the total carbon input, total carbon emissions, and carbon consumption based on the historical data; determining whether the total carbon input and total carbon emissions are abnormal within the preset time period based on the trend of each change curve; and generating a reminder message if either the total carbon input or the total carbon emissions is abnormal, to remind the user to analyze the cause of the abnormality.

[0032] Furthermore, the step of generating a reminder message to prompt the user to analyze the cause of the anomaly if either the total carbon input or the total carbon emissions is abnormal also includes:

[0033] Acquire sintering parameters and corresponding historical data during the sintering process; plot the variation curves of the sintering parameters based on the historical data, and display the variation curves in the display area; wherein, the sintering parameters include the amount of raw material fed, the ratio of raw material to total carbon input, the amount of water added to the flue boiler, the amount of gaseous fuel consumed, and the rotational speed of the sintering machine.

[0034] Furthermore, the reminder information is set to be light, sound, or text information emitted by LED lights.

[0035] Furthermore, a sintering system, wherein the control method of the sintering system described in any one of the above descriptions can be applied to the sintering system.

[0036] Furthermore, a computer device includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the computer program to implement and apply the control method of the sintering system as described above to the sintering system described above.

[0037] Furthermore, a computer-readable storage medium stores a computer program that, when executed by a processor, implements and applies to the control method of the sintering system as described in any of the preceding claims.

[0038] Based on the foregoing description, those skilled in the art will understand that in the aforementioned technical solution of this invention, the carbon consumption of the sintering system is calculated by obtaining the total carbon input and total carbon emissions of the sintering system. The completeness of combustion in the sintering process is determined by whether the carbon consumption is less than a preset threshold of the total carbon input. If incomplete combustion is detected, a reminder message is generated to alert the operator to analyze the cause of the incomplete combustion. This invention innovatively determines the completeness of sintering by calculating the overall carbon consumption of the sintering system and reminds the user to analyze the cause of incomplete sintering, thereby optimizing and adjusting the sintering system, improving sintering efficiency, and reducing sintering costs. Attached Figure Description

[0039] To more clearly illustrate the technical solution of the present invention, some embodiments of the present invention will be described below with reference to the accompanying drawings. Those skilled in the art should understand that the same reference numerals may indicate the same or similar parts or components in different drawings; the drawings of the present invention are not necessarily drawn to scale. In the drawings:

[0040] Figure 1 This is a flowchart of a control method for a sintering system in some embodiments of the present invention;

[0041] Figure 2 These are schematic diagrams of the sintering system in some embodiments of the present invention;

[0042] Figure 3 These are schematic diagrams of the computer system in some embodiments of the present invention;

[0043] Figure 4 This is a schematic diagram of the structure of a computer system in some other embodiments of the present invention. Detailed Implementation

[0044] Those skilled in the art should understand that the embodiments described below are merely a part of the embodiments of the present invention, and not all of the embodiments of the present invention. These partial embodiments are intended to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by those skilled in the art without creative effort should still fall within the scope of protection of the present invention.

[0045] The following reference Figures 1 to 4 The sintering system and control method in some embodiments of the present invention will be described in detail below. Figure 1 This is a flowchart of a control method for a sintering system in some embodiments of the present invention; Figure 2 These are schematic diagrams of the sintering system in some embodiments of the present invention; Figure 3 These are schematic diagrams of the computer system in some embodiments of the present invention; Figure 4 This is a schematic diagram of the structure of a computer system in some other embodiments of the present invention.

[0046] It should be noted beforehand that, for ease of description and to enable those skilled in the art to quickly understand the technical solution of this invention, the following description only focuses on technical features that are strongly related (directly or indirectly related) to the technical problem and / or concept to be solved by this invention. Technical features that are less related to the technical problem and / or concept to be solved by this invention will not be described in detail. Since such less related technical features are common knowledge in the field, the omission of such less related features will not result in insufficient disclosure of this invention.

[0047] like Figure 2 As shown, the present invention provides a sintering system 100, including a feeding mechanism 1, a mixing mechanism 2, an ignition mechanism 3, and a sintering mechanism 4. Multiple sintering raw materials are fed through the feeding mechanism 1, then the mixing mechanism uniformly mixes the various raw materials and conveys the mixed material to the sintering machine. Gas fuel is then introduced into the ignition mechanism 3 for ignition, causing the mixed material to sinter within the sintering machine.

[0048] The feeding mechanism 1 includes a feed inlet, a feeder 12, and a counterweight device 13. Operators feed materials (including solid fuel, limestone, dolomite, and minerals) through the feed inlet, which are then fed to the feeder 12. The counterweight device 13 weighs the material supplied by the feeder 12 to determine the feeding quantity. The counterweight device 13 is a weighing scale with a range of 0 to X, and a unit of t / h.

[0049] The mixing mechanism 2 includes a feed inlet, a water inlet, and a discharge outlet. The feed inlet is used to introduce the weighed material into the mixing mechanism 2. A certain amount of water is added according to the mixing ratio of the material and water, and then introduced into the mixing mechanism 2 through the water inlet. The mixing mechanism 2 then mixes the materials evenly. To ensure uniform mixing, the mixing frequency and mixing time of the mixing mechanism 2 can be controlled, i.e., the mixing time of the mixing mechanism 2 can be extended and multiple mixing operations can be performed. Preferably, in order to improve the overall sintering efficiency and ensure uniform mixing of the materials, the mixing frequency of the mixing mechanism 2 is set to two mixing operations.

[0050] The ignition mechanism 3 includes a gaseous fuel pipeline 31, an igniter 32, a combustion-supporting fan 33, and a first gas flow detection device 34. Gaseous fuel is introduced into the gaseous fuel pipeline 31, which is connected to the ignition mechanism 3. Ignition is achieved through the igniter 32, and combustion is assisted by the combustion-supporting fan 33. The first gas flow detection device 34 is installed inside the gaseous fuel pipeline 31. During stable combustion of the gaseous fuel, the first gas flow detection device 34 periodically detects the flow rate of the gaseous fuel in the gaseous fuel pipeline 31 and uploads the detected flow rate information to a computer system to calculate the carbon content within the gaseous fuel pipeline 31. To improve the accuracy of the detection / calculation results, a temperature detection device and a pressure detection device can be installed inside the gaseous fuel pipeline 31. By correcting the detected temperature and pressure within the gaseous fuel pipeline 31 with those under standard conditions, the detection results become more accurate. The range of the first gas flow detection device 34 is 0 to X, with units of Nm³. 3 / h, wherein the range of the first gas flow detection device 34 is adjustable.

[0051] The sintering mechanism 4 includes a sintering cylinder, at least one flue, and a flue purification module 46. The sintering cylinder is used to sinter the materials and guide the combustion flue gas into the flue, allowing the high-temperature flue gas to cool within the flue and be purified by the flue purification device. Each flue is equipped with a carbon dioxide analyzer 44, a carbon monoxide analyzer 45, and a second gas flow detection device 43. The carbon dioxide analyzer 44 detects the percentage of carbon dioxide in the flue gas flow, the carbon monoxide analyzer 45 detects the percentage of carbon monoxide in the flue gas flow, and the second gas flow detection device 43 detects the gas flow rate. The total carbon content in the flue, i.e., the total carbon emissions of the sintering equipment, can be calculated using the carbon dioxide, carbon monoxide, and gas flow rate values.

[0052] To improve the accuracy of the test results, temperature and pressure detection devices can be added inside the flue to detect the temperature and pressure inside the flue. The detected temperature and pressure can be corrected by using the temperature and pressure under standard conditions, so that the carbon emission in the flue can be more accurately measured.

[0053] Among them, the carbon dioxide analyzer 44 has a range of 0–20%; the carbon monoxide analyzer 45 has a range of 0–20%; and the second gas flow detection device 43 has a range of 0–X, with units of Nm³. 3 / h, and the range of the second gas flow detection device 43 can be adjusted.

[0054] In some embodiments of the present invention, the sintering system 100 further includes a display module for displaying text information and image information. The text information includes information reminding the user to analyze the causes of incomplete combustion, sintering parameters, and historical sintering parameter data. The image information includes curves showing the changes in sintering parameters and historical sintering parameter data.

[0055] In some embodiments of the present invention, the sintering system 100 further includes a voice reminder module, configured to emit a buzzer, warning sound or voice reminder to remind the operator that the sintering is insufficient or the sintering parameters are abnormal when the sintering is insufficient.

[0056] In some embodiments of the present invention, the sintering system 100 further includes LED / RGB lights, configured to flash or remain constantly lit to remind the operator when sintering is insufficient or when sintering parameters are abnormal; or, the RGB lights change color, for example from green to red, to remind the operator when sintering is insufficient or when sintering parameters are abnormal.

[0057] The power supply module is used to electrically connect to and supply power to the various mechanisms within the sintering system 100. The power supply module includes circuit breakers at various levels and a distribution panel.

[0058] The signal isolation and conversion device is used to acquire the detection parameters of the first gas flow detection device 34, the second gas flow detection device 43, the carbon dioxide analyzer 44, the carbon monoxide analyzer 45, the temperature detection device, and the pressure detection device and upload them to the computer system.

[0059] The present invention also provides a computer system for controlling the sintering system 100 to perform feeding, weighing, mixing, sintering, and flue gas purification. The computer system includes a PLC system, a cabinet, a switch, and modules.

[0060] In one embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 3 As shown, the computer device includes a processor, memory, network interface, and database connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile and / or volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and database. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used for communication with external devices via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a steel slag detection method on the server side.

[0061] In one embodiment, a computer device is provided, which may be a device terminal, and its internal structure diagram may be as follows: Figure 4 As shown, the computer device includes a processor, memory, network interface, display screen, and input devices connected via a system bus. The processor provides computing and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system and computer programs. The internal memory provides an environment for the operation of the operating system and computer programs in the non-volatile storage media. The network interface is used to communicate with an external server via a network connection. When the computer program is executed by the processor, it implements the functions or steps of a steel slag detection method on the device side.

[0062] In one embodiment, a computer device is provided, including a memory, a processor, and a computer program stored in the memory and executable on the processor. When the processor executes the computer program, it performs steps related to calculating the carbon consumption in the sintering equipment and determining whether combustion is complete.

[0063] like Figure 1 As shown, the present invention also provides a control method for a sintering system 100, wherein the computer system described above is capable of running the control method described below and executing it within the sintering system 100 described above. The control method generally includes:

[0064] Step S110: Determine the total carbon input of the sintering system 100 based on the raw material mass at the feeding mechanism 1 and the gas fuel gas flow rate at the ignition mechanism 3.

[0065] Step S120: Determine the total carbon emissions of the sintering system 100 based on the gas flow rate, carbon dioxide content, and carbon monoxide content in the flue.

[0066] Step S130: Subtract the total carbon input from the total carbon emissions to obtain the carbon consumption.

[0067] Step S140: Determine whether the carbon consumption is less than a preset threshold of the total carbon input. The preset threshold can be set to 85% to 90%, that is, 85% to 90% of the total carbon input. Preferably, the preset threshold is set to 90%.

[0068] In step S150, if the carbon consumption is less than the preset threshold of the total carbon input, it is determined that the combustion in the sintering process is incomplete, and a reminder message is generated.

[0069] In other embodiments of the present invention, step S110 further includes:

[0070] Step S111: Determine the first carbon input amount C based on the raw material mass at the feeding mechanism 1. 入1 Step S111 includes:

[0071] The mass W1 of solid fuel, the mass W2 of limestone, and the mass W3 of dolomite at the feed inlet are obtained. Multiple counterweight devices 13 are set at the feed inlets, corresponding to different material feed inlets. Each feed inlet allows one type of material to pass through, so that each counterweight device can detect the mass of the material at each feed inlet and upload the mass of each material to the computer system.

[0072] Calculate the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite based on the obtained mass.

[0073] The first carbon input C is obtained by measuring the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite. 入1 The calculation formula is as follows:

[0074] C 入1 =C1+C2+C3;

[0075] in,

[0076] C1 = W1 × c1, W1 = W 01A +W 01B +……+W 01N ,

[0077] Where c1 is the percentage of carbon content in the solid fuel, obtained from the factory's laboratory depending on the type of fuel; W 01A The mass of the solid fuel at the first feed inlet is obtained by adding a counterweight device 13 at the corresponding position of the first feed inlet to detect the mass of the solid fuel; W 01B The mass of the solid fuel at the second inlet is obtained by adding a counterweight device 13 at the corresponding position of the second inlet to detect the mass of the solid fuel at the second inlet; W 01NThe mass of the solid fuel at the Nth feed inlet is obtained by adding a counterweight device 13 at the corresponding position of the Nth feed inlet to detect the mass of the solid fuel at the Nth feed inlet.

[0078] C2=W2×(M c1 / M 石灰石 M c1 M is the relative atomic mass of carbon in limestone; 石灰石 It is the relative molecular mass of limestone;

[0079] C3=W3×(M c2 / M 白云石 M c2 M is the relative atomic mass of carbon in dolomite; 白云石 It is the relative molecular mass of dolomite.

[0080] Step S112: Determine the second carbon input quantity C based on the gaseous fuel gas flow rate at ignition mechanism 3. 入2 Step S112 includes:

[0081] Obtain the gas flow rate Q in the gas fuel pipeline 31 燃 ;

[0082] Based on the obtained airflow rate Q 燃 Calculate the second carbon input C 入2 The formula is as follows:

[0083] C 入2 =Q 燃 ×α2×ε3,

[0084] Where α2 is the carbon percentage of the gaseous fuel, which can be obtained from the factory's testing department; ε3 is the characteristic coefficient of different gaseous fuels.

[0085] Where, ε3=(M c3 / M 气 )×(M 气 / 22.4)=M c3 / 22.4; M c3 M represents the relative atomic mass of carbon in gaseous fuels. 气 It is the relative molecular mass of the gaseous fuel.

[0086] Step S113: Add the first carbon input amount and the second carbon input amount to obtain the total carbon input C of the sintering system 100. 入 C 入 =C 入1 +C 入2 .

[0087] In other embodiments of the present invention, step S120 further includes:

[0088] Step S121 involves determining the carbon emissions of each flue based on its gas flow rate, carbon dioxide content, and carbon monoxide content. Step S121 further includes:

[0089] Based on the percentage content of carbon dioxide γ1, the percentage content of carbon monoxide η1, and the gas flow rate Q1 within the first flue 41, the carbon emission C of the first flue 41 is calculated according to the following formula. 1A :

[0090] C1=(M c1 / M CO2 )×(Q 1A ×γ1)×M CO2 / 22.4+(M c2 / M CO )×(Q1×η1)×M CO / 22.4;

[0091] Among them, M c1 M is the relative atomic mass of carbon in carbon dioxide. c2 M is the relative atomic mass of carbon in carbon monoxide. CO2 M is the relative molecular mass of carbon dioxide. CO It is the relative molecular mass of carbon monoxide.

[0092] Due to M c1 =M c2 Therefore, C1 = (M c1 / 22.4)×Q1×(γ1+η1), where C1 is the carbon emissions in the first flue 41.

[0093] The percentage content of carbon dioxide γ1 is detected by carbon dioxide analyzer 44 in the first flue 41; the percentage content of carbon monoxide η1 is detected by carbon monoxide analyzer 45 in the first flue 41; and the gas flow rate Q1 is detected by gas flow rate detection device in the first flue 41.

[0094] Based on the percentage of carbon dioxide γ2, the percentage of carbon monoxide η2, and the gas flow rate Q2 within the second flue 42, the carbon emission C2 of the second flue 42 is calculated using the following formula:

[0095] C2=(M c1 / M CO2 )×(Q2×γ2)×M CO2 / 22.4+(M c2 / M CO )×(Q2×η2)×M CO / 22.4;

[0096] Due to M c1 =M c2Therefore, C 1B =(M c1 / 22.4)×Q2×(γ2+η2), where C2 is the carbon emissions in the second flue 42;

[0097] Among them, the percentage content of carbon dioxide γ2 is detected by carbon dioxide analyzer 44 in the second flue 42; the percentage content of carbon monoxide η2 is detected by carbon monoxide analyzer 45 in the second flue 42; and the gas flow rate Q2 is detected by gas flow rate detection device in the second flue 42.

[0098] Based on the percentage of carbon dioxide γ in the Nth flue N The percentage of carbon monoxide η N and gas flow rate Q N The carbon emissions C of the Nth flue are calculated using the following formula. N :

[0099] C N =(M c / M CO2 )×(Q N ×γ N )×M CO2 / 22.4+(M c / M CO )×(Q N ×η N )×M CO / 22.4;

[0100] Due to M c1 =M c2 Therefore, C N =(M c1 / 22.4)×Q N ×(γ N +η N ), C N It is the carbon emissions in the Nth flue;

[0101] Among them, the percentage of carbon dioxide γ N The percentage of carbon monoxide η was detected by carbon dioxide analyzer 44 in flue N. N The gas flow rate Q was obtained from the carbon monoxide analyzer 45 inside the Nth flue. N The gas flow rate is obtained by a gas flow detection device in the Nth flue.

[0102] Step S122: Obtain the total carbon emissions C based on the carbon emissions in each flue. 出 The formula is as follows: C 出 =C1+C2+……+C N .

[0103] It should be noted that, due to the large amount of gas within the flue, directly using gas flow rate as the dependent variable for carbon emissions is prone to significant errors. Therefore, it is advisable to calibrate the data by acquiring the pressure and temperature within the flue and comparing it with pressure and temperature under standard conditions to improve the correction value for carbon emissions and enhance data accuracy. The specific steps include: acquiring the pressure and temperature within each flue; averaging the acquired pressure and temperature data from all flues to obtain the average temperature T. 平均 and average pressure P 平均 Then, based on the obtained average pressure P 平均 and average temperature T 平均 The detected gas flow rate values ​​are corrected using the following formula: Gas flow rate values ​​Q1, Q2...Q N Each is compared with the corresponding calibrated pressure and temperature values ​​[i.e., (P)]. 标准 V 标准 T 平均 / P 平均 T 标准 Multiply by )] to obtain the calibrated gas flow rate value, and then substitute the calibrated gas flow rate value into the formula in step S121 above for calculation. Where, P 标准 The pressure value under standard conditions is 101.325 kPa, T 标准 The temperature of the gas under standard conditions is 273.15 K (0 °C).

[0104] The pressure and temperature within each flue are obtained by temperature and pressure detection devices within each flue.

[0105] It should be noted that the above calibration method can also be used to calibrate gaseous fuels in fuel pipelines to improve the accuracy of the carbon content value. Specifically, the pressure and temperature inside the fuel pipeline are obtained, and then the obtained pressure P is used as the calibration method. 燃 and temperature T 燃 The detected gas flow rate value Q 燃 The correction is made using the following formula: Corrected gaseous fuel value = Q 燃 ×(P 标准 V 标准 T 燃 / P 燃 T 标准 The corrected gas flow rate value is then incorporated into step S112 to calculate the carbon content of the gaseous fuel.

[0106] In other embodiments of the present invention, step S110 further includes:

[0107] Based on the carbon content C in ambient air 空 Total carbon input C入 After correction, the corrected total carbon input value C is obtained. 入-修正 The corrected formula is as follows:

[0108] C 入-修正 =C 入 +C 空 .

[0109] Among them, C 空 The steps to obtain it are as follows:

[0110] Obtain the gas flow rate of ambient air;

[0111] The carbon content in the air is calculated using an ambient air gas flow rate detection device, and the formula is as follows:

[0112] C 空 =(Mc / M CO2 )×Q 总 ×β CO2 ×(M CO2 / 22.4)=(Mc / 22.4)×Q 总 ×β CO2 ,

[0113] Where Mc is the relative atomic mass of the carbon atom in carbon dioxide; Q 总 It is the total gas flow rate within the flue; β CO2 It represents the percentage of carbon dioxide in the air;

[0114] Q 总 =Q1 + Q2 + ... + Q N ,

[0115] Q1 is the gas flow rate in the first flue; Q2 is the gas flow rate in the second flue 42; Q N This is the gas flow rate value in the Nth flue. The gas flow rate values ​​in this formula are calculated based on the calibrated gas flow rate values ​​obtained in step S121.

[0116] Step S150 further includes:

[0117] Step S151: Obtain historical data on the total carbon input, total carbon emissions, and carbon consumption of the sintering system 100 within a preset time period;

[0118] Step S152: Plot the change curves corresponding to total carbon input, total carbon emissions, and carbon consumption based on historical data;

[0119] Step S153: Determine whether there are any abnormalities in the total carbon input and total carbon emissions within the preset time period based on the changing trend of each change curve.

[0120] Step S154: If either the total carbon input or the total carbon emissions are abnormal, a reminder message is generated to prompt the user to analyze the cause of the abnormality.

[0121] The reminder information can be set as light, sound, or text information emitted by LED lights.

[0122] The steps performed concurrently with step S154 also include:

[0123] Step S155: Obtain the sintering parameters and corresponding historical data during the sintering process;

[0124] Step S156: Plot the variation curve of sintering parameters based on historical data and display the variation curve in the display area;

[0125] The sintering parameters include the amount of raw ore fed, the ratio of raw ore to total carbon input, the amount of water added to the flue boiler, the amount of gaseous fuel consumed, and the rotational speed of the sintering machine.

[0126] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, the computer program performing the following steps when executed by a processor:

[0127] It should be noted that the functions or steps that can be implemented by the computer-readable storage medium or computer device described above can be referred to the relevant descriptions on the server side and device side in the foregoing method embodiments. To avoid repetition, they will not be described one by one here.

[0128] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, storage, databases, or other media used in the embodiments provided in this application can include non-volatile and / or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically programmable ROM (EPROM), electrically erasable programmable ROM (EEPROM), or flash memory. Volatile memory can include random access memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in various forms, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (DDRSDRAM), enhanced SDRAM (ESDRAM), synchronous link DRAM (SLDRAM), RAMbus direct RAM (RDRAM), direct memory bus dynamic RAM (DRDRAM), and RAMbus dynamic RAM (RDRAM), etc.

[0129] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the above-described division of functional units and modules is used as an example. In practical applications, the above functions can be assigned to different functional units and modules as needed, that is, the internal structure of the device can be divided into different functional units or modules to complete all or part of the functions described above.

[0130] Those skilled in the art will understand that this invention calculates the carbon consumption of the sintering system 100 by obtaining the total carbon input and total carbon emissions of the sintering system 100, and determines whether the sintering process is complete by judging whether the carbon consumption is less than a preset threshold of the total carbon input. If it is incomplete, a reminder message is generated to remind the operator to analyze the cause of incomplete combustion. This invention innovatively determines whether sintering is complete by calculating the overall carbon consumption of the sintering system 100, and reminds the user to analyze the cause of incomplete sintering, thereby optimizing and adjusting the sintering system 100, improving the sintering efficiency of the sintering system 100, and reducing the sintering cost.

[0131] The technical solutions of the present invention have been described in conjunction with several embodiments above. However, it will be readily understood by those skilled in the art that the scope of protection of the present invention is not limited to these specific embodiments. Without departing from the technical principles of the present invention, those skilled in the art can disassemble and combine the technical solutions in the above embodiments, and can also make equivalent changes or substitutions to related technical features. Any changes, equivalent substitutions, improvements, etc., made within the technical concept and / or technical principles of the present invention will fall within the scope of protection of the present invention.

Claims

1. A control method for a sintering system, the sintering system comprising a feeding mechanism, an ignition mechanism, and a sintering mechanism, the sintering mechanism comprising a flue; characterized in that, The control method includes: The total carbon input of the sintering system is determined based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism. The total carbon emissions of the sintering system are determined based on the gas flow rate, carbon dioxide content, and carbon monoxide content in the flue. The carbon consumption is obtained by subtracting the total carbon input from the total carbon emissions. Determine whether the carbon consumption is less than a preset threshold for the total carbon input; If the carbon consumption is less than a preset threshold of the total carbon input, the combustion in the sintering process is determined to be incomplete, and a reminder message is generated. The step of determining the total carbon input of the sintering system based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism includes: The first carbon input amount C is determined based on the raw material quality at the feeding mechanism. 入1 ; The second carbon input C is determined based on the gaseous fuel gas flow rate at the ignition mechanism. 入2 ; The first carbon input amount C 入1 and the second carbon input C 入2 The total carbon input C of the sintering system is obtained by adding them together. 入 ; The step of determining the total carbon emissions of the sintering system based on the gas flow rate, carbon dioxide content, and carbon monoxide content within the flue includes: The carbon emissions of each flue are determined based on the gas flow rate, carbon dioxide content, and carbon monoxide content of each flue. The total carbon emissions are calculated based on the carbon emissions within each of the flues using the following formula: C 出= C 1A +C 1B +……+C 1N ; Among them, C 出 It is the total carbon emissions; C 1A It is the carbon emissions within the first flue; C 1B It is the carbon emissions within the second flue; C 1N It is the carbon emissions in the Nth flue; The step for determining incomplete combustion during the sintering process also includes: Obtain historical data on the total carbon input, total carbon emissions, and carbon consumption of the sintering system within a preset time period; The curves showing the changes in the total carbon input, total carbon emissions, and carbon consumption, plotted based on the historical data; Based on the trend of each of the change curves, determine whether the total carbon input and the total carbon emissions are abnormal within the preset time period; If either the total carbon input or the total carbon emissions are abnormal, an alert message will be generated to remind the user to analyze the cause of the abnormality.

2. The control method for the sintering system according to claim 1, characterized in that, The feeding mechanism includes a feed inlet, and the first carbon input quantity C is determined based on the raw material quality at the feeding mechanism. 入1 The steps include: Obtain the mass W1 of the solid fuel, the mass W2 of the limestone, and the mass W3 of the dolomite at the feed inlet; Calculate the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite based on the obtained mass. The first carbon input C is calculated by taking the carbon content C1 of the solid fuel, the carbon content C2 of the limestone, and the carbon content C3 of the dolomite according to the following formula. 入1 : C 入1 =C1+C2+C3; in, C1=W1*c1,W1=W 01A +W 01B +……+W 01N , Wherein, c1 is the percentage of carbon content in the solid fuel; W 01A The mass of the solid fuel at the first feed inlet; W 01B The mass of the solid fuel at the second feed inlet; W 01N It is the mass of the solid fuel at the Nth feed inlet; C2=W2*(M c1 / M 石灰石 M c1 M is the relative atomic mass of carbon in the limestone; 石灰石 It is the relative molecular mass of the limestone; C 3= W3*(M c2 / M 白云石 M c2 M is the relative atomic mass of carbon in the dolomite; 白云石 It is the relative molecular mass of the dolomite.

3. The control method for the sintering system according to claim 1, characterized in that, The ignition mechanism includes a gas fuel pipeline, and the second carbon input C is determined based on the gas fuel flow rate at the ignition mechanism. 入2 The steps include: Obtain the gas flow rate Q2 in the gas fuel pipeline; The second carbon input quantity C is calculated based on the obtained airflow rate Q2. 入2 The formula is as follows: C 入2 =Q2×α2× 3, Where α2 is the carbon percentage of the gaseous fuel; 3 represents the characteristic coefficients of different gaseous fuels.

4. The control method for the sintering system according to claim 1, characterized in that, The step of determining the carbon emissions of each flue based on the gas flow rate, carbon dioxide content, and carbon monoxide content of each flue further includes: Based on the percentage of carbon dioxide γ in the first flue 1A The percentage of carbon monoxide η 1A and gas flow rate Q 1A The carbon emissions C of the first flue are calculated according to the following formula. 1A : C 1A =(M c1 / M CO2 )×(Q 1A ×γ 1A )×M CO2 / 22.4+(M c2 / M CO )×(Q 1A ×η 1A )×M CO / 22.4; Based on the percentage of carbon dioxide γ in the second flue 1B The percentage of carbon monoxide η 1B and gas flow rate Q 1B The carbon emissions C of the second flue are calculated using the following formula. 1B : C 1B =(M c1 / M CO2 )×(Q 1B ×γ 1B )×M CO2 / 22.4+(M c2 / M CO )×(Q 1B ×η 1B )×M CO / 22.4; Based on the percentage of carbon dioxide γ in the Nth flue 1N The percentage of carbon monoxide η 1N and gas flow rate Q 1N The carbon emission C of the Nth flue is calculated according to the following formula. 1N : C 1N =(M c1 / M CO2 )×(Q 1N ×γ 1N )×M CO2 / 22.4+(M c2 / M CO )×(Q 1N ×η 1N )×M CO / 22.4; Among them, M c1 M is the relative atomic mass of carbon in carbon dioxide. c2 M is the relative atomic mass of carbon in carbon monoxide. CO2 M is the relative molecular mass of carbon dioxide. CO It is the relative molecular mass of carbon monoxide.

5. The control method for the sintering system according to claim 1, characterized in that, The step of determining the total carbon input of the sintering system based on the raw material mass at the feeding mechanism and the gaseous fuel gas flow rate at the ignition mechanism further includes: Based on the carbon content C in ambient air 空 The total carbon input C 入 After correction, the corrected total carbon input value C is obtained. 入-修正 The corrected formula is as follows: C 入-修正 =C 入 +C 空 。 6. The control method for the sintering system according to claim 1, characterized in that, The step of generating a reminder message to alert the user to analyze the cause of the anomaly also includes: Acquire the sintering parameters during the sintering process and the historical data corresponding to the sintering parameters; Based on the historical data corresponding to the sintering parameters, a change curve of the sintering parameters is plotted, and the change curve is displayed in the display area. The sintering parameters include the amount of raw ore fed, the ratio of raw ore to total carbon input, the amount of water added to the boiler in the flue, the amount of gaseous fuel consumed, and the rotational speed of the sintering machine.

7. The control method for the sintering system according to claim 1, characterized in that, The reminder information is set to be light, sound, or text information emitted by LED lights.

8. A sintering system, characterized in that, The sintering system performs the control method of the sintering system according to any one of claims 1 to 7.

9. A computer device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the computer program, it implements the control method of the sintering system as described in any one of claims 1 to 7 and applies it to the sintering system as described in claim 8.

10. A computer-readable storage medium storing a computer program, characterized in that, When the computer program is executed by the processor, it implements the control method of the sintering system as described in any one of claims 1 to 7 and is applied to the sintering system as described in claim 8.

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