Dust removal method, device and system based on multi-user terminal

Abstract

The invention discloses a dust removal method, device and system based on multiple user terminals, the user terminals are supplied with air by the same dust removal fan, the method comprises the steps that real-time state scenes of the user terminals are obtained, and the state scenes at least comprise process steps; based on the real-time state scenes of all the user terminals, the total real-time supply air volume is determined; according to a dust removal fan characteristic curve and the total real-time supply air volume, frequency converter operation parameters of the dust removal fan are determined; and controlling a dust removal fan to work based on the operating parameters of the frequency converter. According to the method and the device, the actual requirements of a plurality of user terminals can be dynamically matched, the required supply air volume is accurately provided for each user terminal, efficient utilization of energy is realized, and the energy consumption operation cost of a user is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of dust removal, and in particular to a dust removal method, device and system based on a multi-user terminal. Background Art

[0002] Existing user terminals typically incorporate a corresponding number of dust removal devices to address health and environmental concerns. When multiple user terminals require dust removal, the number of dust removal devices increases, increasing both the cost and the energy consumption of these devices. The following uses a refining furnace as an example user terminal.

[0003] The refining furnace is a smelting equipment in the hot processing industry. When processing molten steel, the various gases and dusts generated during the metallurgical reaction will affect the health of production personnel if dust removal operations are not performed.

[0004] Similarly, existing dust removal equipment typically operates alongside a single smelting furnace. By employing fixed air volumes or simple segmented control, these systems result in long-term high-load operation of the fans, leading to significant energy waste. This makes them unsuitable for the coordinated operation of multiple refining furnaces, where process stages vary widely and air volume demands fluctuate significantly. Existing technology cannot dynamically adapt to actual demand. Summary of the Invention

[0005] The present invention solves the technical problem that the existing dust removal device works in conjunction with the user terminal, adopts a fixed air volume or simple segmented control, resulting in long-term high-load operation of the fan and serious energy waste. On the one hand, the present invention provides a dust removal method based on multiple user terminals, where each user terminal is supplied with air by the same dust removal fan, and the method comprises:

[0006] Acquire a real-time status scenario of each user terminal, wherein the status scenario includes at least a process step;

[0007] Determine the total real-time supply air volume based on the real-time status scenarios of all user terminals;

[0008] determining the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume;

[0009] Based on the inverter operating parameters, the dust removal fan is controlled to operate.

[0010] Furthermore, the status scene includes process steps and standby scenes, and the process steps include molten steel entering the station, first heating, first charging, second heating, second charging, third heating, adjusting molten steel composition temperature, or molten steel leaving the station. The real-time status scene of each user terminal is obtained, including:

[0011] Acquire characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information;

[0012] Obtain the furnace start signal and power outage round signal corresponding to each user terminal;

[0013] Based on the characteristic information of the ladle car, the furnace start signal and the power outage round signal corresponding to each user terminal, the real-time status scenario of each user terminal is determined.

[0014] Furthermore, before the step of determining the real-time status scenario of each user terminal based on the characteristic information of the ladle car, the heat start signal, and the power outage round signal corresponding to each user terminal, the step further includes:

[0015] Acquiring production status information of each user terminal, wherein the production status information includes real-time furnace pressure information, molten iron flow rate information, and molten iron temperature information;

[0016] The method of determining the real-time status scenario of each user terminal based on the characteristic information of the ladle car, the heat start signal, and the power outage round signal corresponding to each user terminal includes:

[0017] Determine the baseline real-time status scenario for each user terminal based on the production status information corresponding to each user terminal, the characteristic information of the ladle car, the furnace start signal, and the power outage round signal;

[0018] Split each process step into multiple characteristic time periods;

[0019] Match the corresponding standard furnace pressure information, molten iron flow rate information and molten iron temperature information for the characteristic time period of each process step to obtain the production status data set;

[0020] Split the production state dataset into training, testing, and validation sets;

[0021] Establishing and training a dust removal state scenario model based on the split production state data;

[0022] The reference real-time status scene is subdivided according to the production status information based on the dust removal status scene model to determine the real-time status scene corresponding to the feature time period.

[0023] Furthermore, the step of determining the total real-time supply air volume based on the real-time status scenarios of all user terminals includes:

[0024] Generate an air volume relationship library corresponding to the real-time status scene of each user terminal, wherein the air volume relationship library includes a first real-time standard air volume corresponding to the air outlet position of each user terminal and a second real-time standard air volume corresponding to the feeding position of each user terminal;

[0025] The total real-time supplied air volume is determined based on the real-time status scenarios of all user terminals and the air volume relationship library corresponding to the real-time status scenarios of each user terminal.

[0026] Furthermore, the first real-time standard air volume is defined to include the top suction real-time air volume α and the side suction real-time air volume β, and the second real-time standard air volume includes the feeding real-time air volume γ. The step of determining the total real-time supply air volume based on the real-time status scenarios of all user terminals includes:

[0027] According to the formula:

[0028]

[0029] Determine the total real-time demand air volume, where i is the number of user terminals and Qs is the total real-time supply air volume;

[0030] According to the formula:

[0031] Q g =k1Q s

[0032] Determine the total real-time supply air volume, where K1 is the air volume adjustment coefficient, Q g It is the total real-time supply air volume.

[0033] Furthermore, the step of determining the operating parameters of the frequency converter of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume includes:

[0034] Obtain the fan characteristic curve corresponding to the dust removal fan;

[0035] According to the formula:

[0036]

[0037] Determine the motor operating control frequency of the dust removal fan, where Q max is the maximum operating air volume of the dust removal fan, f is the power frequency, K1 is the frequency adjustment coefficient, and F is the motor operating control frequency of the dust removal fan.

[0038] Furthermore, the step of controlling the dust removal fan based on the inverter operating parameters is specifically as follows:

[0039] Based on the motor operation control frequency of the dust removal fan, the dust removal fan operation is controlled in real time.

[0040] Another embodiment of the present invention provides a dust removal device based on multiple user terminals, wherein each user terminal is supplied with air by the same dust removal fan, and the device includes:

[0041] An acquisition module, configured to acquire a real-time status scenario of each user terminal, wherein the status scenario includes at least a process step;

[0042] A first determining module is configured to determine a total real-time supplied air volume based on real-time status scenarios of all user terminals;

[0043] a second determining module, configured to determine an inverter operating parameter of the dust removal fan according to a characteristic curve of the dust removal fan and the total real-time supply air volume;

[0044] The control module is used to control the operation of the dust removal fan based on the operating parameters of the inverter.

[0045] Another aspect of an embodiment of the present invention provides a dust removal system based on a multi-user terminal, the dust removal system based on a multi-user terminal comprising: a dust removal device based on a multi-user terminal;

[0046] The dust removal device based on the multi-user terminal is controlled by the above-mentioned dust removal method based on the multi-user terminal.

[0047] The embodiment of the present invention provides a dust removal fan that uniformly supplies air to each user terminal, obtains the real-time status scene of each user terminal, and the status scene at least includes process steps; determines the total real-time supply air volume based on the real-time status scene of all user terminals; determines the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume; and controls the operation of the dust removal fan based on the frequency converter operating parameters. This allows the embodiment of the present invention to be applied to multi-user terminal collaborative operation scenarios. To address the problem that the process stages of user terminals vary greatly and the air volume demand fluctuates significantly, the real-time air volume demand can be determined by obtaining the real-time status scene of each user terminal, and then the dust removal fan can be controlled according to the frequency converter operating parameters. This can dynamically match the actual demand and accurately provide the required supply air volume for each user terminal, thereby achieving efficient energy utilization, reducing the user's energy consumption and operating costs, and at the same time, saving the purchase, deployment, and subsequent maintenance costs of the dust removal fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0049] Figure 1 This is a flow chart of an embodiment of a dust removal method based on a multi-user terminal according to the present invention;

[0050] Figure 2 This is a flow chart of another embodiment of the dust removal method based on a multi-user terminal of the present invention. This embodiment improves step S11 of the first embodiment.

[0051] Figure 3 This is a flow chart of another embodiment of the dust removal method based on a multi-user terminal of the present invention. This embodiment improves step S11 of the first embodiment.

[0052] Figure 4 This is a flow chart of another embodiment of the dust removal method based on a multi-user terminal of the present invention. This embodiment improves step S12 of the first embodiment.

[0053] Figure 5 This is a flow chart of another embodiment of the dust removal method based on a multi-user terminal of the present invention. This embodiment improves step S13 of the first embodiment.

[0054] Figure 6 This is a structural schematic diagram of an embodiment of a dust removal device based on a multi-user terminal of the present invention;

[0055] Figure 7 This is a structural schematic diagram of at least one embodiment of a dust removal system based on multiple user terminals of the present invention, showing the connection relationship between multiple user terminals;

[0056] Figure 8 A schematic diagram of the structure of at least one embodiment of the dust removal system based on a multi-user terminal of the present invention, connected to Figure 7 The flue gas passage shows the connection between the dust collector body, dust removal fan and chimney;

[0057] Figure 9 The dust removal fan characteristic curve of at least one embodiment of the dust removal method based on a multi-user terminal of the present invention. DETAILED DESCRIPTION

[0058] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0059] When ordinal numbers such as "first" and "second" are mentioned in the embodiments of the present invention, unless they actually express the meaning of order according to the context, they should be understood as being merely for the purpose of distinction.

[0060] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0061] Please refer to Figure 1 , is a flow chart of an embodiment of a dust removal method based on multiple user terminals of the present invention. All user terminals are supplied with air by the same dust removal fan. The dust removal method includes S11-S14, wherein:

[0062] S11, obtaining a real-time status scene of each user terminal, wherein the status scene at least includes a process step.

[0063] In this embodiment, the user terminal can be a steelmaking furnace or an ironmaking furnace, as a specific solution rather than a limitation, please refer to Figure 7 and Figure 8 As shown, the user terminal can specifically be an LF furnace (Ladle Furnace, ladle refining furnace). The number of user terminals is three as an example. The air inlet of each user terminal can include a top suction port, a side suction port and a charging port. The top suction port, the side suction port and the charging port are all provided with dust removal valves. The air outlets of each user terminal are interconnected and eventually merge into the flue gas channel and enter the dust collector body. The dust removal operation is performed by the dust removal fan provided on the dust collector body. The dust-laden airflow finally enters the discharge chimney under the action of the dust removal fan for treatment and then is discharged.

[0064] Typically, because different user terminals have different real-time processes or operating scenarios, when executing the dust removal method of this embodiment, it is necessary to obtain the real-time status scenario of each user terminal in advance. The real-time status scenario not only includes the process steps, but also usually includes the operating status of the user terminal.

[0065] S12: Determine the total real-time supplied air volume based on the real-time status scenarios of all user terminals.

[0066] This step S12 obtains the real-time status scenes of all user terminals, and then determines the required air volume of each air outlet according to the real-time status scenes of each user terminal, such as top suction air volume, side suction air volume and feeding air volume, and determines the real-time required air volume required by each user terminal, and then determines the total real-time supply air volume according to the preset algorithm.

[0067] As an example and not a limitation, the process duration, top suction target air volume, side suction target air volume, and feeding target air volume of each process are different. Please refer to the table below.

[0068]

[0069] S13, determining the inverter operating parameters of the dust removal fan according to the dust removal fan characteristic curve and the total real-time supply air volume.

[0070] The dust removal fan characteristic curve is usually related to the model or specification of the fan. It should be noted that in some embodiments, the dust removal fan characteristic curve is also related to the fan's own state and working environment. That is, this step can determine the dust removal fan characteristic curve based on the model / specification of the dust removal fan, the health status of the dust removal fan and the working environment, and the working environment includes the installation method, placement state and flue gas channel state. As an example and not a limitation, the dust removal fan characteristic curve of this embodiment can be as follows Figure 9 shown.

[0071] It should be noted that the operating parameters of the frequency converter of the dust removal fan of this embodiment can be determined in real time according to the total real-time supply air volume.

[0072] S14, controlling the dust removal fan to operate based on the inverter operating parameters.

[0073] Corresponding to the description of S13 above, this step S14 controls the dust removal fan to adjust the working state in real time through the inverter operating parameters determined in real time.

[0074] The embodiment of the present invention provides a dust removal fan that uniformly supplies air to each user terminal, obtains the real-time status scene of each user terminal, and the status scene at least includes process steps; determines the total real-time supply air volume based on the real-time status scene of all user terminals; determines the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume; and controls the operation of the dust removal fan based on the frequency converter operating parameters. This allows the embodiment of the present invention to be applied to multi-user terminal collaborative operation scenarios. To address the problem that the process stages of user terminals vary greatly and the air volume demand fluctuates significantly, the real-time air volume demand can be determined by obtaining the real-time status scene of each user terminal, and then the dust removal fan can be controlled according to the frequency converter operating parameters. This can dynamically match the actual demand and accurately provide the required supply air volume for each user terminal, thereby achieving efficient energy utilization, reducing the user's energy consumption and operating costs, and at the same time, saving the purchase, deployment, and subsequent maintenance costs of the dust removal fan.

[0075] As a specific solution rather than a limitation, the status scenario includes process steps and standby scenarios, and the process steps include molten steel entering the station, the first heating, the first charging, the second heating, the second charging, the third heating, adjusting the molten steel composition temperature or molten steel leaving the station.

[0076] Please refer to Figure 2 , in Figure 1In another embodiment of the dust removal method based on multiple user terminals of the present invention, the step of obtaining the real-time status scene of each user terminal includes S111-S113, wherein:

[0077] S111, acquiring characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information.

[0078] Specifically, step S111 can ensure the accuracy and reliability of the ladle car's weight information by placing a piezoelectric weighing sensor under the ladle car track and transmitting the weight data in real time via a CAN bus or wireless transmission. Furthermore, step S111 can also achieve RFID area positioning by deploying a high-frequency RFID reader at the corresponding position of the workstation, or by using a lidar or ultra-wideband (UWB) to achieve precise positioning, thereby obtaining the ladle car's location information.

[0079] S112, obtaining the furnace start signal and power outage round signal corresponding to each user terminal;

[0080] When the ladle car enters the station, the heat start signal is used as the smelting start signal, the high-voltage power supply is used for smelting timing, each power outage is a process stage, the charging process is detected when the ladle car runs to the charging position, the ladle car is hoisted out after the molten steel is smelted, and the time between furnaces is the standby time.

[0081] S113, based on the characteristic information of the ladle car corresponding to each user terminal, the furnace start signal and the power outage round signal, determine the real-time status scene of each user terminal.

[0082] After determining the real-time status scenario of each user terminal, this embodiment can also control the valve opening of the dust removal valve at each air outlet (top suction port, side suction port and feeding port) according to different real-time status scenarios to correspond to the real-time supply air volume required by each user terminal, thereby achieving the optimal dust removal effect.

[0083] This embodiment provides a specific method for determining the real-time status scene of each user terminal through S111-S113. By obtaining the characteristic information of the ladle car, the furnace start signal and the power outage round signal, the real-time status scene of each user terminal can be accurately determined.

[0084] Please refer to Figure 3 , in Figure 1 In another embodiment of the dust removal method based on multiple user terminals of the present invention, the step of obtaining the real-time status scene of each user terminal includes S111'-S119', wherein:

[0085] S111′, acquiring characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information;

[0086] S112', obtaining the furnace start signal and power outage round signal corresponding to each user terminal;

[0087] The above steps S111 ′-S112 ′ are the same as the corresponding steps in the previous embodiment and are not described in detail in this embodiment.

[0088] S113′, obtaining production status information of each user terminal, wherein the production status information includes real-time furnace pressure information, molten iron flow rate information, and molten iron temperature information;

[0089] As a preferred solution but not a limitation, this step S113' obtains the furnace pressure information by setting high-temperature resistant micro-pressure sensors at the furnace cover sealing ring (positive pressure zone) and above the air-permeable bricks at the bottom of the ladle (negative pressure zone), determines the molten iron flow rate information through a high frame rate camera (500fps) + particle tracking algorithm, and determines the molten iron temperature information through an array of infrared thermometers.

[0090] S114′, determining a baseline real-time status scenario for each user terminal based on the production status information corresponding to each user terminal, characteristic information of the ladle car, the heat start signal, and the power outage round signal;

[0091] The benchmark real-time status scenario is used to determine the current basic real-time status scenario of each user terminal. In the corresponding benchmark real-time status scenario, each user terminal is in an ideal operating state or a theoretical standard operating state.

[0092] S115', splitting each process step into multiple characteristic time periods;

[0093] This step S115' divides each process step into multiple characteristic time periods according to different factor time periods in which each process step may deviate from the baseline real-time status scenario. For example, a process step may include multiple characteristic time periods, and different characteristic time periods under the same process step may be affected by the environment, equipment status or human factors, and there may be situations where the operation status deviates from expectations due to different factors.

[0094] S116′, matching the corresponding standard furnace pressure information, molten iron flow rate information and molten iron temperature information for the characteristic time period of each process step to obtain a production status data set;

[0095] This step S116′ determines the standard furnace pressure, molten iron flow rate, and molten iron temperature information corresponding to the characteristic time period of each process step. This is used to quantify the corresponding standard parameters of each user terminal when the characteristic time period of each process step is in an ideal operating state or a theoretical standard operating state. This facilitates subsequent reliable matching of the characteristic time periods of each process step.

[0096] S117', split the production status dataset into training set, test set and validation set;

[0097] S118′, establishing and training a dust removal state scenario model based on the split production state data;

[0098] The above steps S117'-S118' are the process of establishing and training the dust removal state scene model. It should be noted that in this embodiment, it is also possible to match the corresponding characteristic furnace pressure information, characteristic molten iron flow rate information and characteristic molten iron temperature information by additionally establishing characteristic time periods of each process step that deviates from the expected, thereby forming a data group for characterizing the deviation from the expected, and matching the data group with the characteristic labels of the characteristic time periods of the process steps of the corresponding user terminal.

[0099] Then, based on the scaled matching data set and feature labels, a test set and a validation set are further generated to train the dust removal state scenario model.

[0100] S119′: Based on the dust removal state scene model, the reference real-time state scene is subdivided according to the production state information to determine the real-time state scene corresponding to the feature time period.

[0101] This embodiment divides each process step into multiple characteristic time periods and obtains a production status data set based on standard furnace pressure information, molten iron flow rate information, and molten iron temperature information. A dust removal state scenario model is established and trained based on the production status data set, so that the dust removal scenario model can subdivide the benchmark real-time state scenario according to the production status information, and determine the real-time state scenario down to the characteristic time period of each process step, further improving the refinement and recognition accuracy of the real-time state scenario. This facilitates more precise determination of the inverter operating parameters of the dust removal fan, thereby controlling the dust removal fan to more efficiently adjust its working state, improving the efficiency of matching actual needs, accurately providing the required supply air volume to each user terminal, achieving efficient energy utilization, and reducing the user's energy consumption and operating costs. In addition, this embodiment establishes additional characteristic time periods for each process step that deviates from expectations, matching the corresponding characteristic furnace pressure information, characteristic molten iron flow rate information, and characteristic molten iron temperature information, to form a data group for characterizing deviations from expectations, and matching the data group with feature labels for the characteristic time periods of the process steps corresponding to the user terminal. When the operating status of one or more user terminals deviates from the standard status, the dust removal status scene model can still accurately determine the real-time status scene of the user terminal corresponding to the characteristic time period, thereby improving the stability and reliability of the dust removal method of the embodiment of the present invention, achieving more efficient use of energy, and further reducing the user's energy consumption and operating costs.

[0102] Please refer to Figure 4 , in Figure 1In another embodiment of the dust removal method based on multiple user terminals of the present invention based on the above table, the step of determining the total real-time supply air volume based on the real-time status scenes of all user terminals includes S121-S122, wherein:

[0103] S121: Generate an air volume relationship library corresponding to the real-time status scenario of each user terminal, wherein the air volume relationship library includes a first real-time standard air volume corresponding to the air outlet position of each user terminal and a second real-time standard air volume corresponding to the feeding position of each user terminal;

[0104] S122 : Determine the total real-time supplied air volume based on the real-time status scenarios of all user terminals and the air volume relationship library corresponding to the real-time status scenarios of the respective user terminals.

[0105] As a specific solution but not limitation, in this embodiment, the first real-time standard air volume is defined to include the top suction real-time air volume α and the side suction real-time air volume β, and the second real-time standard air volume includes the feeding real-time air volume γ. The step of determining the total real-time supply air volume based on the real-time status scenarios of all user terminals includes:

[0106] According to the formula:

[0107]

[0108] Determine the total real-time demand air volume, where i is the number of user terminals and Qs is the total real-time supply air volume;

[0109] According to the formula:

[0110] Q g =k1Q s

[0111] Determine the total real-time supply air volume, where K1 is the air volume adjustment coefficient, Q g It is the total real-time supply air volume.

[0112] Please refer to Figure 5 The step of determining the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume includes S131-S132:

[0113] S131, obtaining a fan characteristic curve corresponding to the dust removal fan;

[0114] S132, according to the formula:

[0115]

[0116] Determine the motor operating control frequency of the dust removal fan, where Q maxis the maximum operating air volume of the dust removal fan, f is the power frequency, K1 is the frequency adjustment coefficient, and F is the motor operating control frequency of the dust removal fan.

[0117] Correspondingly, the step of controlling the dust removal fan based on the inverter operating parameters is specifically as follows:

[0118] Based on the motor operation control frequency of the dust removal fan, the dust removal fan operation is controlled in real time.

[0119] The embodiment of the present invention introduces an air volume adjustment coefficient to determine the total real-time supply air volume based on the total real-time demand air volume; introduces a frequency adjustment coefficient to determine the motor operation control frequency of the dust removal fan based on the industrial frequency and the frequency adjustment coefficient, and then controls the operation of the dust removal fan in real time based on the motor operation control frequency of the dust removal fan, thereby ensuring the stability and reliability of the dust removal method.

[0120] The dust removal device based on the multi-user terminal of the embodiment of the present invention is used to implement the dust removal method in one or more embodiments of the above method. Figure 6 , is a schematic diagram of the structure of an embodiment of a dust removal device based on multiple user terminals of the present invention. Each user terminal is supplied with air by the same dust removal blower. The dust removal device 100 includes:

[0121] An acquisition module 110 is configured to acquire a real-time status scenario of each user terminal, wherein the status scenario includes at least a process step;

[0122] A first determining module 120 is configured to determine a total real-time supplied air volume based on the real-time status scenarios of all user terminals;

[0123] A second determining module 130 is configured to determine an inverter operating parameter of the dust removal fan according to a characteristic curve of the dust removal fan and the total real-time supply air volume;

[0124] The control module 140 is used to control the operation of the dust removal fan based on the operating parameters of the inverter.

[0125] The state scenarios include process steps and standby scenarios. The process steps include molten steel entering the station, first heating, first charging, second heating, second charging, third heating, adjusting molten steel composition temperature, or molten steel leaving the station. The acquisition module 110 includes:

[0126] A first acquiring unit is configured to acquire characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information;

[0127] The second acquisition unit is used to obtain the furnace start signal and the power outage round signal corresponding to each user terminal;

[0128] The determination unit is used to determine the real-time status scenario of each user terminal based on the characteristic information of the ladle car corresponding to each user terminal, the furnace start signal and the power outage round signal.

[0129] All modules and units of this embodiment are identical to the corresponding steps of one or more of the above-mentioned method embodiments, and their logical relationships and operating principles are also identical, and are not further described here. To avoid redundancy, those skilled in the art can learn the corresponding virtual modules or units from the above-mentioned method embodiments so that they correspond to the steps of the above-mentioned method embodiments. Virtual modules or units not disclosed in this embodiment should also be considered as part of the disclosure of the present invention.

[0130] The embodiment of the present invention provides a dust removal fan that uniformly supplies air to each user terminal, obtains the real-time status scene of each user terminal, and the status scene at least includes process steps; determines the total real-time supply air volume based on the real-time status scene of all user terminals; determines the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume; and controls the operation of the dust removal fan based on the frequency converter operating parameters. This allows the embodiment of the present invention to be applied to multi-user terminal collaborative operation scenarios. To address the problem that the process stages of user terminals vary greatly and the air volume demand fluctuates significantly, the real-time air volume demand can be determined by obtaining the real-time status scene of each user terminal, and then the dust removal fan can be controlled according to the frequency converter operating parameters. This can dynamically match the actual demand and accurately provide the required supply air volume for each user terminal, thereby achieving efficient energy utilization, reducing the user's energy consumption and operating costs, and at the same time, saving the purchase, deployment, and subsequent maintenance costs of the dust removal fan.

[0131] Another aspect of an embodiment of the present invention provides a dust removal system based on a multi-user terminal, the dust removal system based on a multi-user terminal comprising: a dust removal device based on a multi-user terminal;

[0132] The multi-user terminal-based dust removal device is controlled by the multi-user terminal-based dust removal method according to one or more embodiments.

[0133] In this embodiment, the user terminal can be a steelmaking furnace or an ironmaking furnace, as a specific solution rather than a limitation, please refer to Figure 7 and Figure 8 As shown, the user terminal can specifically be an LF furnace (Ladle Furnace, ladle refining furnace). The number of user terminals is three as an example. The air inlet of each user terminal can include a top suction port, a side suction port and a charging port. The top suction port, the side suction port and the charging port are all provided with dust removal valves. The air outlets of each user terminal are interconnected and eventually merge into the flue gas channel and enter the dust collector body. The dust removal operation is performed by the dust removal fan provided on the dust collector body. The dust-laden airflow finally enters the discharge chimney under the action of the dust removal fan for treatment and then is discharged.

[0134] The above is only an embodiment of the present invention, and the common knowledge such as the specific structure and characteristics of the scheme is not described in detail here. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

[0135] Those skilled in the art will clearly understand that for the sake of convenience and brevity, the division of the above-mentioned functional modules is only used as an example for illustration. In actual applications, the above-mentioned functions can be assigned to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above. The specific working processes of the above-mentioned systems, devices, and units can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0136] In the several embodiments provided in this application, it should be understood that the disclosed dust removal method, device and system based on a multi-user terminal can be implemented in other ways. For example, the embodiment of the control device described above is only schematic, and the division of the modules or units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0137] The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0138] In addition, the functional units in the various embodiments of the present invention may be integrated into a single processing unit, each unit may exist physically separately, or two or more units may be integrated into a single unit. The aforementioned integrated units may be implemented in the form of hardware or software functional units.

[0139] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, server, or network device, etc.) or a processor to execute all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0140] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A dust removal method based on a multi-user terminal, characterized in that: Each user terminal is supplied with air by the same dust removal fan, and the method includes: Acquire a real-time status scenario of each user terminal, wherein the status scenario includes at least a process step; Determine the total real-time supply air volume based on the real-time status scenarios of all user terminals; determining the frequency converter operating parameters of the dust removal fan according to the characteristic curve of the dust removal fan and the total real-time supply air volume; Based on the inverter operating parameters, the dust removal fan is controlled to operate.

2. The dust removal method based on a multi-user terminal according to claim 1, characterized in that: The state scenarios include process steps and standby scenarios. The process steps include molten steel entering the station, first heating, first charging, second heating, second charging, third heating, adjusting molten steel composition temperature, or molten steel leaving the station. The real-time state scenarios of each user terminal are obtained, including: Acquire characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information; Obtain the furnace start signal and power outage round signal corresponding to each user terminal; Based on the characteristic information of the ladle car, the furnace start signal and the power outage round signal corresponding to each user terminal, the real-time status scenario of each user terminal is determined.

3. The dust removal method based on a multi-user terminal according to claim 2, characterized in that: Before the step of determining the real-time status scenario of each user terminal based on the characteristic information of the ladle car, the heat start signal, and the power outage round signal corresponding to each user terminal, the method further includes: Acquiring production status information of each user terminal, wherein the production status information includes real-time furnace pressure information, molten iron flow rate information, and molten iron temperature information; The method of determining the real-time status scenario of each user terminal based on the characteristic information of the ladle car, the heat start signal, and the power outage round signal corresponding to each user terminal includes: Determine the baseline real-time status scenario for each user terminal based on the production status information corresponding to each user terminal, the characteristic information of the ladle car, the furnace start signal, and the power outage round signal; Split each process step into multiple characteristic time periods; Match the corresponding standard furnace pressure information, molten iron flow rate information and molten iron temperature information for the characteristic time period of each process step to obtain the production status data set; Split the production state dataset into training, testing, and validation sets; Establishing and training a dust removal state scenario model based on the split production state data; The reference real-time status scene is subdivided according to the production status information based on the dust removal status scene model to determine the real-time status scene corresponding to the feature time period.

4. The dust removal method based on a multi-user terminal according to claim 3, characterized in that: The step of determining the total real-time supply air volume based on the real-time status scenarios of all user terminals includes: Generate an air volume relationship library corresponding to the real-time status scene of each user terminal, wherein the air volume relationship library includes a first real-time standard air volume corresponding to the air outlet position of each user terminal and a second real-time standard air volume corresponding to the feeding position of each user terminal; The total real-time supplied air volume is determined based on the real-time status scenarios of all user terminals and the air volume relationship library corresponding to the real-time status scenarios of each user terminal.

5. The dust removal method based on a multi-user terminal according to claim 4, characterized in that: The first real-time standard air volume is defined to include the top suction real-time air volume α and the side suction real-time air volume β, and the second real-time standard air volume includes the feeding real-time air volume γ. The step of determining the total real-time supply air volume based on the real-time status scenarios of all user terminals includes: According to the formula: Determine the total real-time demand air volume, where i is the number of user terminals and Qs is the total real-time supply air volume; According to the formula: Q g =k1Q s Determine the total real-time supply air volume, where K1 is the air volume adjustment coefficient, Q g It is the total real-time supply air volume.

6. The dust removal method based on a multi-user terminal according to claim 5, characterized in that: The step of determining the frequency converter operating parameters of the dust removal fan according to the dust removal fan characteristic curve and the total real-time supply air volume includes: Obtain the fan characteristic curve corresponding to the dust removal fan; According to the formula: Determine the motor operating control frequency of the dust removal fan, where Q max is the maximum operating air volume of the dust removal fan, f is the power frequency, K1 is the frequency adjustment coefficient, and F is the motor operating control frequency of the dust removal fan.

7. The dust removal method based on a multi-user terminal according to claim 6, characterized in that: The step of controlling the dust removal fan based on the inverter operating parameters is specifically as follows: Based on the motor operation control frequency of the dust removal fan, the dust removal fan operation is controlled in real time.

8. A dust removal device based on a multi-user terminal, characterized in that: Each user terminal is supplied with air by the same dust removal fan, and the device includes: An acquisition module, configured to acquire a real-time status scenario of each user terminal, wherein the status scenario includes at least a process step; A first determining module is configured to determine a total real-time supplied air volume based on real-time status scenarios of all user terminals; a second determining module, configured to determine an inverter operating parameter of the dust removal fan according to a characteristic curve of the dust removal fan and the total real-time supply air volume; The control module is used to control the operation of the dust removal fan based on the operating parameters of the inverter.

9. The dust removal device based on a multi-user terminal according to claim 8, characterized in that: The state scenarios include process steps and standby scenarios, wherein the process steps include molten steel entering the station, first heating, first charging, second heating, second charging, third heating, adjusting the temperature of molten steel components, or molten steel leaving the station. The acquisition module includes: A first acquiring unit is configured to acquire characteristic information of the ladle car corresponding to each user terminal, wherein the characteristic information includes weight information and location information; The second acquisition unit is used to obtain the furnace start signal and the power outage round signal corresponding to each user terminal; The determination unit is used to determine the real-time status scenario of each user terminal based on the characteristic information of the ladle car corresponding to each user terminal, the furnace start signal and the power outage round signal.

10. A dust removal system based on a multi-user terminal, characterized in that: The multi-user terminal-based dust removal system includes: a multi-user terminal-based dust removal device; The dust removal device based on a multi-user terminal is controlled by the dust removal method based on a multi-user terminal according to any one of claims 1 to 7.

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