Systems, methods, devices and equipment for blast furnace raw material balance and silo level early warning

Abstract

This invention relates to the field of industrial control technology, and discloses a system, method, apparatus, and equipment for blast furnace raw material balance and silo early warning. The system includes: a raw material production subsystem for recording the coke pushing time, the weight of the first coke, and the weight of the first sinter; a raw material silo subsystem for recording the weight of the second coke and the weight of the second sinter, and obtaining real-time raw material consumption data; a raw material consumption subsystem for recording the charging time, the weight of the third coke, and the weight of the third sinter; and a raw material balance early warning subsystem for providing early warnings to the raw material silo subsystem based on the real-time raw material consumption data, and for real-time control of the raw material production subsystem based on at least two of the raw material production rate, raw material consumption rate, and real-time raw material consumption data. This invention achieves real-time monitoring and adjustment of raw material production and consumption balance, ensuring a sufficient supply of coke and sinter and stable operation of blast furnace ironmaking.

Description

Technical Field

[0001] This invention relates to the field of industrial control technology, specifically to a system, method, apparatus, and equipment for blast furnace raw material balance and silo level early warning. Background Technology

[0002] From the perspective of blast furnace operation, many factors affect the smooth operation of the blast furnace, among which the supply of raw materials is one of the core factors. Theoretically, the consumption and output of blast furnace materials should be a material balance process. The blast furnace silo level should be relatively stable, the rate at which the coke oven produces coke should be the same as the rate at which the blast furnace consumes coke, and the rate at which the sintering machine produces sinter should be the same as the rate at which the blast furnace consumes sinter. However, in actual production, due to factors such as equipment failure and maintenance, the production and consumption of blast furnace materials are often difficult to balance. This can easily lead to situations where a full silo is forced to be dumped or the blast furnace is empty and runs out of material. Furthermore, it is impossible to control the production of materials based on the silo level information, resulting in an imbalance in the production and consumption of raw materials throughout the blast furnace ironmaking process. Summary of the Invention

[0003] In view of this, the present invention provides a system, method, apparatus and equipment for blast furnace raw material balance and silo level early warning, in order to solve the problem of how to avoid the imbalance of raw material production and consumption in the entire blast furnace ironmaking process.

[0004] In a first aspect, the present invention provides a system for blast furnace raw material balance and storage early warning, the system comprising: a raw material production subsystem, a raw material storage subsystem, a raw material consumption subsystem, and a raw material balance early warning subsystem; The raw material production subsystem includes a coke oven, a sintering machine, and a first control module. The coke oven is used to produce coke and transport it to the coke silo in the raw material storage subsystem. The sintering machine is used to produce sinter and transport it to the sinter ore silo in the raw material storage subsystem. The first control module is used to control the nth coke pushing during the coking process in the coke oven, and to record the pushing time of the nth coke pushing and the weight of the first coke produced after the nth coke pushing. The first control module is also used to control the sintering machine speed during the sinter production process, and to record the sintering machine production time and the weight of the first sinter produced. The raw material storage subsystem includes a coke silo, a sinter ore silo, and a monitoring module. Both the coke silo and the sinter ore silo are connected to the monitoring module. The coke silo is used to store the coke from the nth push of the coke oven and to record the weight of the second coke after the nth push and nth transport of coke from the coke oven and after quenching. The sinter ore silo is used to store the sinter produced by the sintering machine and to record the weight of the second sinter after the sinter has been screened by the ring cooler. The monitoring module is used to acquire real-time coke consumption data in the coke silo and real-time sinter consumption data in the sinter ore silo. The raw material consumption subsystem includes a blast furnace feed hopper and a blast furnace probe. The blast furnace probe is used to send probe signals to the blast furnace feed hopper. The blast furnace feed hopper is used to distribute coke or sinter according to the probe signals, and records the distribution time of the m-th coke distribution, the weight of the third coke after the m-th coke distribution, the distribution time of the m-th sinter distribution, and the weight of the third sinter after the m-th distribution. The raw material balance early warning subsystem is used to acquire the following data for the nth coke push: push time, weight of the first coke, sintering machine production time, weight of the first sinter, weight of the second coke, weight of the second sinter, real-time coke consumption data in the coke silo, real-time sinter consumption data in the sinter silo, material placement time, weight of the third coke, and weight of the third sinter. Based on the push time, weight of the first coke, and weight of the second coke, it calculates the coke production rate corresponding to the nth coke push; based on the sintering machine production time, weight of the first sinter, and weight of the second sinter, it calculates the sinter production rate; based on the material placement time, probe signal, and weight of the third coke, it calculates the... The coke consumption rate of the mth coke feeding; the sinter consumption rate of the mth sinter feeding calculated based on the feeding time, probe signal, and the weight of the third sinter; and the early warning of the raw material storage subsystem based on the real-time coke consumption data in the coke silo and the real-time sinter consumption data in the sinter silo; and the real-time control of the raw material production subsystem based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; and / or the real-time control of the raw material production subsystem based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo.

[0005] The blast furnace raw material balance and silo level early warning system provided by this invention records the coke pushing time, the weight of the first coke, and the weight of the first sinter through the raw material production subsystem; monitors the coke and sinter silo conditions in real time through the raw material silo level subsystem; records the coke feeding time, the weight of the third coke, and the weight of the third sinter through the raw material consumption subsystem; and calculates the coke production-consumption balance based on the coke production rate and coke consumption rate, and calculates the sinter balance based on the sinter production rate and sinter consumption rate. It also controls the raw material production subsystem in real time, achieving real-time monitoring and adjustment of the raw material production-consumption balance, ensuring a sufficient supply of coke and sinter and stable operation of the blast furnace ironmaking. This system adjusts the coke oven production parameters and sintering machine production parameters based on the blast furnace material consumption rate, and monitors and provides early warnings for material silos. It achieves comprehensive monitoring and adjustment of coke production, sinter production, silo conditions, and consumption, thereby improving the utilization efficiency of coke and sinter, enhancing the stability of blast furnace materials, and balancing the production and consumption of coke and sinter in the raw materials.

[0006] In a second aspect, the present invention provides a system for blast furnace raw material balance and silo level early warning applied to the first aspect above, the method comprising: Obtain the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke bin and the real-time consumption data of sinter in the sinter bin, the feeding time, the weight of the third coke and the weight of the third sinter. The coke production rate corresponding to the nth coke push is calculated based on the push time of the nth coke push, the weight of the first coke and the weight of the second coke. The sinter production rate is calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter. The coke consumption rate of the m-th blast furnace charge feeder is calculated based on the feeding time, probe signal, and third coke weight. The sinter consumption rate of the m-th blast furnace charge hopper sinter feeding is calculated based on the feeding time, probe signal, and the weight of the third sinter. The raw material storage subsystem is given an early warning based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo. The raw material production subsystem is controlled in real time based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; and / or, the raw material production subsystem is controlled in real time based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo.

[0007] The method for blast furnace raw material balance and silo level early warning provided by this invention acquires the coke pushing time, the weight of the first coke and the weight of the first sinter, monitors the status of the coke and sinter silos in real time, the coke charging time, and the weight of the third coke and sinter charging. It calculates the coke production-consumption balance based on the coke production rate and coke consumption rate, and calculates the sinter balance based on the sinter production rate and sinter consumption rate, and performs corresponding real-time control. This achieves real-time monitoring and adjustment of raw material production-consumption balance, ensuring a sufficient supply of coke and sinter and stable operation of the blast furnace ironmaking. The method of this invention regulates the coke oven production parameters and sintering machine production parameters based on the blast furnace material consumption rate, and monitors and provides early warnings for material silos. This achieves comprehensive monitoring and adjustment of coke production, sinter production, silo status, and consumption, thereby improving the utilization efficiency of coke and sinter, enhancing the stability of blast furnace materials, and balancing the production and consumption of coke and sinter in the raw materials.

[0008] In one optional implementation, the coke production rate corresponding to the nth coke push is calculated based on the push time of the nth coke push, the weight of the first coke, and the weight of the second coke, including: The coke conversion efficiency is obtained based on the weight of the first coke and the weight of the second coke. The coke production rate corresponding to the nth coke push is calculated based on the obtained coke conversion efficiency, the weight of the first coke, and the push time of the nth coke push.

[0009] In one optional implementation, the coke production rate corresponding to the nth coke push is calculated using the following formula: ; in, Let n be the coke production rate corresponding to the nth coke push. Let be the coke conversion efficiency for the (n+1)-ith coke push. The weight of the first coke in the (n+1)-ith coke push is... This is the nth focusing moment. The total number of focus pushes. This is the ncth focusing moment; This indicates the preset number of coke pushes that need to be referenced before the nth coke push when calculating the coke production rate corresponding to the nth coke push.

[0010] The method for blast furnace raw material balance and silo early warning provided by this invention calculates the coke conversion efficiency using the weights of the first and second cokes. This efficiency represents the conversion efficiency level during coke production, ensuring the accuracy of the speed calculation. Based on the obtained coke conversion efficiency, and combined with the parameters from the coking process closest to the current coking time when calculating each speed, the method can represent the changes in the past coke production process. This provides valuable reference for calculating the coke production speed during the current coking process, thus enabling a more accurate calculation of the coke production speed and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo subsystem.

[0011] In one optional implementation, the sinter production rate is calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter, including: The sinter conversion efficiency is obtained based on the weight of the first sinter and the weight of the second sinter. The sinter production rate is calculated based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine.

[0012] The method for blast furnace raw material balance and silo level early warning provided by this invention obtains the sinter conversion efficiency based on the weights of the first and second sinters; and calculates the sinter production rate based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine. This provides a valuable reference for calculating the current sinter production rate, thereby enabling a more accurate calculation of the sinter production rate and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo level subsystem.

[0013] In one optional implementation, when the probe signal is a lifting signal, the coke consumption rate of the m-th coke feeding is calculated using the following formula: ; When the probe signal is the release signal, the coke consumption rate of the m-th coke feeding is calculated using the following formula:

[0014] in: This represents the coke consumption rate of the m-th coke-laying process. Indicates the first The third coke weight of the secondary coke fabric Indicates the first The third coke weight of the secondary coke fabric This indicates the time of the m-th cloth placement. This indicates the time of the mkth cloth placement. This indicates the preset number of coke feeding operations that need to be referenced before the m-th coke feeding operation when calculating the coke consumption rate of the m-th coke feeding operation.

[0015] The method for blast furnace raw material balance and silo early warning provided by this invention, based on the charging time and the third coke weight, and the parameters closest to the current charging process when calculating the consumption rate, can represent the changes in the past coke consumption process. It has reference value for calculating the coke consumption rate in the current charging process, thereby more accurately calculating the coke consumption rate and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo subsystem.

[0016] In one optional implementation, when the probe signal is a lifting signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula: ; When the probe signal is the release signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula:

[0017] in: This represents the sinter consumption rate during the m-th sintering process. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. This indicates the time of the m-th cloth placement. This indicates the time of the (m-k')th cloth placement. This indicates the preset number of sintering feeds that need to be referenced before the m-th sintering feed when calculating the sintering consumption rate of the m-th sintering feed.

[0018] The method for blast furnace raw material balance and bin position early warning provided by this invention, based on the charging time and the weight of the third sinter, and the parameters closest to the current charging process when calculating the consumption rate, can represent the changes in the past sinter consumption process. It has reference value for calculating the sinter consumption rate in the current charging process, thereby more accurately calculating the sinter consumption rate and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material bin position subsystem.

[0019] In one optional implementation, the early warning system for the raw material storage subsystem based on real-time coke consumption data in the coke silo and real-time sinter consumption data in the sinter silo includes: Based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, image fitting was performed to obtain the real-time trend map of the coke silo and the real-time trend map of the sinter silo. The real-time coke inventory and real-time sinter inventory of the raw material storage subsystem are determined based on the real-time trend charts of the coke silo and the sinter silo. The raw material storage subsystem is given an early warning based on the relationship between the real-time coke inventory and the preset coke inventory threshold, as well as the relationship between the real-time sinter inventory and the preset sinter inventory threshold.

[0020] In one optional implementation, the preset coke inventory threshold includes a first preset coke inventory threshold and a second preset coke inventory threshold, wherein the second preset coke inventory threshold is greater than the first preset coke inventory threshold; the preset sinter inventory threshold includes a first preset sinter inventory threshold and a second preset sinter inventory threshold, wherein the second preset sinter inventory threshold is greater than the first preset sinter inventory threshold. The early warning system for the raw material storage subsystem is based on the relationship between the real-time coke inventory and the preset coke inventory threshold, as well as the relationship between the real-time sinter inventory and the preset sinter inventory threshold. This includes: If the real-time coke inventory of the raw material storage subsystem is lower than the first preset coke inventory threshold and higher than the second preset coke inventory threshold, and / or if the real-time sinter inventory of the raw material storage subsystem is lower than the first preset sinter inventory threshold and higher than the second preset sinter inventory threshold, then the first warning signal is triggered. The raw material storage subsystem is given an early warning based on the first warning signal.

[0021] The method for blast furnace raw material balance and silo early warning provided by this invention automatically acquires real-time trend maps of coke silos and sinter ore silos through image fitting, and obtains corresponding real-time data on coke and sinter inventory. By combining parameters such as real-time coke inventory and preset coke inventory threshold, as well as real-time sinter inventory and preset sinter inventory threshold, the raw material silo subsystem is given an early warning, realizing real-time monitoring of silo positions.

[0022] In one optional implementation, the raw material production subsystem is controlled in real time based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; and / or, the real-time control of the raw material production subsystem based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo includes: The coking speed of the raw material production subsystem is controlled in real time based on at least two of the following: preset coke inventory threshold, coke production speed, coke consumption speed, and real-time coke inventory of the raw material storage subsystem. And / or, based on at least two of the following: a preset sinter stock threshold, sinter production speed, sinter consumption rate, and real-time sinter stock in the raw material storage subsystem, the sintering machine speed of the raw material production subsystem is controlled in real time.

[0023] The method for blast furnace raw material balance and silo early warning provided by the present invention controls the coking speed of the raw material production subsystem in real time based on at least two of the following: a preset coke inventory threshold, coke production speed, coke consumption speed, and real-time coke inventory of the raw material silo subsystem; and / or controls the sintering machine speed of the raw material production subsystem in real time based on at least two of the following: a preset sinter inventory threshold, sinter production speed, sinter consumption speed, and real-time sinter inventory of the raw material silo subsystem. The method adjusts the coke oven production parameters and sintering machine production parameters according to the blast furnace material consumption rate, thereby improving the stability of blast furnace materials.

[0024] In one optional implementation, the preset coke inventory threshold further includes a third preset coke inventory threshold, which is greater than the second preset coke inventory threshold. Real-time control of the coking speed of the raw material production subsystem based on at least two of the preset coke inventory threshold, coke production rate, coke consumption rate, and the real-time coke inventory of the raw material storage subsystem includes: If the real-time coke inventory of the raw material storage subsystem is lower than the third preset coke inventory threshold, and the coke consumption rate is greater than the coke production rate, a second warning signal is triggered. Based on the second warning signal, the coking rate of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate. If the coke consumption rate is greater than the coke production rate and the duration is greater than the preset time, a third warning signal is triggered. Based on the third warning signal, the coking speed of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate. If the coke consumption rate is less than the coke production rate, and the duration is longer than a preset time, a fourth warning signal is triggered. Based on the fourth warning signal, the coking speed of the raw material production subsystem is reduced until the coke consumption rate equals the coke production rate.

[0025] The blast furnace raw material balance and silo level early warning method provided by this invention addresses the risk of a continuous decrease in silo level if the consumption rate exceeds the production rate. This risk is mitigated by the possibility of coke falling into the silo, significantly reducing coke particle size and affecting coke quality. The method controls the coking speed when the real-time coke inventory in the raw material silo subsystem is below a third preset coke inventory threshold, and the coke consumption rate exceeds the coke production rate, or when the coke consumption rate exceeds the coke production rate for a duration exceeding a preset time. This effectively ensures coke quality. Conversely, if the consumption rate is less than the production rate, the risk of a continuous increase in silo level is present, potentially leading to a full silo and coke falling into the silo, also impacting coke quality. If the coke consumption rate is less than the coke production rate for a duration exceeding a preset time, an excessively high coke silo level may occur. In this case, the coking speed of the coke oven control system is reduced until the coke consumption rate equals the coke production rate, thus effectively ensuring coke quality.

[0026] In one optional implementation, the preset sinter inventory threshold further includes a third preset sinter inventory threshold, which is greater than the second preset sinter inventory threshold. Real-time control of the sintering machine speed in the raw material production subsystem based on at least two of the preset sinter inventory threshold, sinter production speed, sinter consumption speed, and the real-time sinter inventory in the raw material storage subsystem includes: If the real-time sinter inventory of the raw material storage subsystem is lower than the third preset sinter inventory threshold, and the sinter consumption rate is greater than the sinter production rate, then the fifth warning signal is triggered. Based on the fifth warning signal, the speed of the sintering machine in the raw material production subsystem is increased until the sinter consumption rate equals the sinter production rate. If the sinter consumption rate is greater than the sinter production rate and the duration is greater than the preset time, the sixth warning signal is triggered. Based on the sixth warning signal, the speed of the sintering machine in the raw material production subsystem is increased until the sinter consumption rate equals the sinter production rate. If the sinter consumption rate is less than the sinter production rate and the duration is longer than the preset time, the seventh warning signal is triggered. Based on the seventh warning signal, the speed of the sintering machine in the raw material production subsystem is reduced until the sinter consumption rate equals the sinter production rate.

[0027] The blast furnace raw material balance and bin level early warning method provided by this invention addresses the risk of a continuous decrease in bin level if the consumption rate exceeds the production rate. Sinter falling into the bin would significantly reduce the particle size of the coke, affecting sinter quality. The method controls the sintering machine speed when the real-time sinter inventory in the raw material bin subsystem is below a third preset sinter inventory threshold, and the sinter consumption rate exceeds the sinter production rate, or when the sinter consumption rate exceeds the sinter production rate for a duration exceeding a preset time. This effectively ensures sinter quality. Conversely, if the consumption rate is less than the production rate, the bin level may continuously rise, leading to a risk of sinter falling into the bin and affecting sinter quality. If the sinter consumption rate is less than the sinter production rate for a duration exceeding a preset time, the sinter bin level may be too high. In this case, the sintering machine speed in the raw material production subsystem is reduced until the sinter consumption rate equals the sinter production rate, effectively ensuring sinter quality.

[0028] Thirdly, the present invention provides an apparatus for blast furnace raw material balancing and silo level early warning, applied to the blast furnace raw material balancing and silo level early warning system of the first aspect, the apparatus comprising: The acquisition module is used to acquire the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, the material feeding time, the weight of the third coke, and the weight of the third sinter. The first calculation module is used to calculate the coke production rate corresponding to the nth coke push based on the push time of the nth coke push, the weight of the first coke and the weight of the second coke. The second calculation module is used to calculate the sinter production speed based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter. The third calculation module is used to calculate the coke consumption rate of the m-th blast furnace charge feeder based on the feeding time, probe signal, and third coke weight. The fourth calculation module is used to calculate the sinter consumption rate of the m-th blast furnace charge hopper sinter feeding based on the feeding time, probe signal, and the weight of the third sinter. The early warning module is used to provide early warnings to the raw material storage subsystem based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo. The control module is used to perform real-time control of the raw material production subsystem based on at least two of the following data: coke production speed, coke consumption speed, and real-time coke consumption data in the coke silo; and / or, to perform real-time control of the raw material production subsystem based on at least two of the following data: sinter production speed, sinter consumption speed, and real-time sinter consumption data in the sinter silo.

[0029] Fourthly, the present invention provides a computer device, comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to perform the blast furnace raw material balance and silo level early warning method described in the first aspect or any corresponding embodiment thereof.

[0030] Fifthly, the present invention provides a computer-readable storage medium storing computer instructions for causing a computer to execute the blast furnace raw material balance and silo level warning method described in the first aspect or any corresponding embodiment thereof. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of the structure of a blast furnace raw material balance and silo level early warning system according to an embodiment of the present invention; Figure 2 This is a flowchart illustrating the method for blast furnace raw material balancing and silo level early warning according to an embodiment of the present invention; Figure 3 This is a schematic flowchart of another method for blast furnace raw material balancing and silo level early warning according to an embodiment of the present invention; Figure 4 This is a flowchart illustrating another method for blast furnace raw material balancing and silo level early warning according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of a blast furnace raw material balance and silo level early warning device according to an embodiment of the present invention; Figure 6 This is a schematic diagram of the hardware structure of a computer device according to an embodiment of the present invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0034] This embodiment provides a system for blast furnace raw material balance and silo level early warning. Figure 1 This is a structural diagram of a blast furnace raw material balance and silo level early warning system according to an embodiment of the present invention, as shown below. Figure 1 As shown, there are raw material production subsystem Z1, raw material storage subsystem Z2, raw material consumption subsystem Z3, and raw material balance early warning subsystem Z4; The raw material production subsystem Z1 includes a coke oven, a sintering machine, and a first control module. The coke oven is used to produce coke and transport it to the coke silo in the raw material storage subsystem. The sintering machine is used to produce sinter and transport it to the sinter ore silo in the raw material storage subsystem. The first control module is used to control the nth coke pushing during the coking process in the coke oven, and to record the pushing time of the nth coke pushing and the weight of the first coke produced after the nth coke pushing. The first control module is also used to control the sintering machine speed during the sinter production process, and to record the sintering machine production time and the weight of the first sinter produced. Specifically, the coking process of coal mainly involves the high-temperature thermal decomposition of coal under air-isolated conditions to obtain coke. This process consists of the following steps: First, coal is loaded into the carbonization chamber through the charging hole at the top of the furnace or the machine side (tamping coke). Second, heat from the combustion chambers on both sides heats the coal to a high temperature under air-isolated conditions, at which point the coal has already melted and decomposed. Third, the gaseous products generated during the melting and decomposition process escape through the riser pipe at the top of the carbonization chamber and are introduced into the coal gas purification system. After treatment, chemical products and coal gas are obtained. Fourth, after melting and decomposition, the residual coal remaining in the carbonization chamber gradually solidifies, forming coke, which is then pushed out using a pusher. Furthermore, a coke oven is a high-temperature reactor with various models, such as the JN type, JNX type, and types 58, 66, and 70, as well as the No. 3 simple coke oven. The specific details and parameters of actual operation may differ depending on the type of oven used. This embodiment does not limit the type of oven used. To transport coke, coke tank cars are installed in the raw material production subsystem Z1. Coke is pushed from the coke oven into the tank cars, which are then pulled along tracks by electric locomotives. The coke on the tank cars undergoes dry or wet quenching, is then screened, and enters the coke silos in the raw material storage subsystem Z2. Furthermore, during the coking process, the raw material production subsystem Z1 also has functions such as controlling the heating method and heating intensity. The first control module can be implemented using a PLC controller.

[0035] For example, if the coke oven is undergoing its 11th coking process, the raw material production subsystem Z1 has already started operating. Before completing the 11th coke pushing, the raw material production subsystem Z1 records parameters such as the current coke weight and the temperature of the furnace charge layer and issues a coke pushing command. The coke pushing rod will then begin pushing the coke into the furnace until all the coke is pushed into the coke car. The first control module in the raw material production subsystem Z1 will automatically record the coke pushing time (e.g., 12:05) and measure the weight of the first coke (e.g., 20t~30t, where t represents tons). This data will be stored in the database of the raw material production subsystem Z1, corresponding to the 11th coking process, to facilitate the subsequent transmission of the corresponding data to the raw material balance early warning subsystem Z4.

[0036] Sintering machines are mainly used in large-scale ferrous metallurgical sintering plants for sintering operations. They are suitable for large and medium-sized sintering plants to sinter iron ore powder, ultimately obtaining sintered ore. Sintering machines can sinter concentrate powder and rich ore powder of different compositions and particle sizes into blocks, and partially eliminate harmful impurities such as sulfur and phosphorus contained in the ore. Sintering machines are classified into several specifications with different lengths and widths according to the sintering area, and the selection is based on the output or site conditions. This embodiment does not limit the model of sintering machine used. The larger the sintering area, the higher the output of sintered ore. For convenient transportation of sintered ore, a sintered ore conveying module is also set up in the raw material production subsystem. During transportation, the sintered ore on the sintered ore conveying module is screened and then enters the sintered ore silo in the raw material silo subsystem Z2. The sintered ore conveying module can be a conveyor belt or conveying pipeline composed of a drive device, conveyor belt, support frame, etc.

[0037] The raw material storage subsystem Z2 includes a coke silo, a sinter ore silo, and a monitoring module. Both the coke silo and the sinter ore silo are connected to the monitoring module. The coke silo is used to store the coke from the nth push of the coke oven and records the weight of the second coke after the nth push and nth transport of coke from the coke oven and after quenching treatment (quenching treatment includes dry quenching and wet quenching treatment). The sinter ore silo is used to store the sinter produced by the sintering machine and records the weight of the second sinter after the sinter has been screened by the ring cooler. The monitoring module is used to obtain real-time coke consumption data in the coke silo and real-time sinter consumption data in the sinter ore silo.

[0038] Specifically, a coke silo refers to a facility used for storing coke. It is a large container located inside the raw material storage subsystem Z2. It stores the coke produced during the nth coke push from the coke oven via the raw material production subsystem Z1, and records the weight of the second coke after the nth coke push and nth transfer from the coke oven. Each coke push transports coke sequentially to the raw material storage subsystem Z2, meaning one coke push corresponds to one transport operation. The coke produced by the coke oven needs to be dry-quenched or wet-quenched and screened before being transported to the coke silo in the raw material storage subsystem Z2 for storage. After processing, the quality of the coke will inevitably change (this process can be called the post-coke processing process). The weight of coke pushed out of the coke tank car by the raw material production subsystem Z1 (first coke weight, for example, 30t) and the weight of coke transported to the coke tank car by the raw material storage subsystem Z2 (second coke weight, for example, 28t) will necessarily be different. Therefore, recording the first coke weight and the second coke weight is used to calculate the coke conversion efficiency a in subsequent steps to avoid the impact of coke loss during post-coke processing or transportation on the subsequent control process, which is conducive to improving the accuracy of production and consumption balance control.

[0039] It should be noted that after the sintering machine in the raw material production subsystem Z1 produces sintered ore, the sintered ore is transported by the transmission module to the sintered ore silo in the raw material storage subsystem Z2, and then conveyed by belt to the blast furnace for blast furnace production. The sintered ore silo is a facility used to store sintered ore; it is a large container located inside the raw material storage subsystem Z2. It is used to store the sintered ore produced by the sintering machine and record the weight of the second sintered ore after it has undergone annular cooling screening. Because the sintered ore needs to undergo annular cooling screening in the raw material production subsystem Z1 before being transferred to the raw material storage subsystem Z2, the weight of the sintered ore received by the sintered ore silo in the raw material storage subsystem Z2 will inevitably be different from the weight of the first sintered ore. Therefore, the weight of the second sintered ore needs to be recorded in the sintered ore silo of the raw material storage subsystem Z2.

[0040] The monitoring module can be implemented using sensors to acquire real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo.

[0041] The weight of the second coke transported from the coke oven during the nth coke transport, the weight of the second sinter, the real-time coke consumption data in the coke silo, and the real-time sinter consumption data in the sinter silo are stored in the database of the raw material storage subsystem Z2, so as to facilitate the subsequent transmission of the corresponding data to the raw material balance early warning subsystem Z4. The raw material consumption subsystem Z3 includes a blast furnace feed hopper and a blast furnace probe. The blast furnace probe is used to send probe signals to the blast furnace feed hopper. The blast furnace feed hopper is used to distribute coke or sinter according to the probe signals, and records the distribution time of the m-th coke distribution, the weight of the third coke after the m-th coke distribution, the distribution time of the m-th sinter distribution, and the weight of the third sinter after the m-th distribution.

[0042] Specifically, the probe signals include a lifting signal and a lowering signal. When the lifting signal is received, the blast furnace hopper is opened for coke or sinter charging. When the lowering signal is received, the blast furnace hopper is closed. For example, when the blast furnace probe lifts, the blast furnace hopper opens, and the blast furnace begins charging. The blast furnace performs the m-th coke charging or the m-th ore charging (the blast furnace charging follows a sequential "ore-coke-ore-coke" charging pattern, meaning if the current charging is coke, the next charging will be ore), and records the charging time and the weight of the third coke and the third sinter in this charging. It should be noted that the raw material consumption subsystem Z3 is the system that adds coke, sinter, and other related materials to the blast furnace from the blast furnace charge hopper for smelting and producing molten iron. Before charging, the coke and sinter to be charged are weighed using a weighing device, and the weights of the coke and sinter to be charged are recorded respectively. The time of each raising of the blast furnace probe is recorded. For example, when the blast furnace probe is raised for the first time, the blast furnace charge hopper is opened for the first coke charging. The charging time corresponds to the first coke charging time, and the weight of the coke charged is the weight of the coke weighed by the weighing device. This coke weight is set as the third coke weight corresponding to the first charging. After the coke charging is completed, the blast furnace probe is lowered, and the blast furnace charge hopper is closed. (The charging time is mainly based on the subjective judgment of the blast furnace operator according to the blast furnace condition and the burden height, and then the charging is carried out.) Several minutes later, the blast furnace probe is raised for the second time. At this time, the blast furnace hopper is opened, and the first sinter charging is carried out. The charging time corresponds to the first sinter charging time. The weight of the sinter charged is the weight of the sinter weighed by the weighing equipment. This sinter weight is set as the third sinter weight corresponding to the first charging. After the sinter charging is completed, the blast furnace probe is lowered, and the blast furnace hopper is closed. The blast furnace probe is raised to cycle through the coke charging and sinter charging, performing a preset number of m coke charging and m sinter charging cycles.

[0043] The material placement time is automatically recorded by the raw material consumption subsystem Z3. After each material placement is completed, the raw material consumption subsystem Z3 automatically records the current placement time as the placement time (14:05). The weights of the third coke and the third sinter are weighed by weighing equipment (such as belt scales) in the system. After each material placement is completed, the raw material consumption subsystem Z3 weighs the weights of the coke and sinter through the weighing equipment and stores them in the database of the raw material consumption subsystem Z3, which facilitates the subsequent transmission of the corresponding data to the raw material balance early warning subsystem Z4.

[0044] For example, as shown in Table 1, "1" in the probe signal indicates a lifting action and "0" indicates a lowering action. After the probe is lifted, material will be distributed. At this time, the blast furnace hopper is opened, and a batch of coke is distributed first. Then the blast furnace probe lowers, and the blast furnace hopper is closed. Several minutes later, the blast furnace probe lifts again, and the blast furnace hopper is opened. At this time, a batch of sinter needs to be distributed. That is, the blast furnace probe performs a lifting-lowering cycle. The cyclic distribution of material in the blast furnace hopper is also a cycle operation of first distributing a batch of coke and then distributing a batch of sinter. The Y corresponding to the weight of the blast furnace hopper is the weight of sinter (referred to as distributing ore) or coke (referred to as distributing coke) distributed each time.

[0045] Table 1

[0046] The sequence number indicates the need for the blast furnace probe to send a probe extension signal. For example, assuming sequence number 1 indicates the blast furnace probe is being raised, signal X1 represents the blast furnace hopper opening, and Y1 represents the weight of coke, then sequence number 2 indicates the blast furnace probe is being lowered, at which point the blast furnace hopper closes. Signal X3 indicates the blast furnace hopper is opening, and the corresponding Y3 represents the weight of sintered ore. At sequence number 41, the corresponding time is t. 41 At this point, coking is carried out, and the weight of the coke laid is Y41, which is the weight of the third coke. The time corresponding to position 43 is t. 43 At this point, the ore is laid out, and the weight of the laid sinter is Y43, which is the weight of the third sinter.

[0047] The raw material balance early warning subsystem Z4 is used to acquire the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, real-time coke consumption data in the coke silo, real-time sinter consumption data in the sinter silo, the material placement time, the weight of the third coke, and the weight of the third sinter; based on the coking time, the weight of the first coke, and the weight of the second coke, it calculates the coke production rate corresponding to the nth coking push; based on the production time of the sintering machine, the weight of the first sinter, and the weight of the second sinter, it calculates the sinter production rate; based on the material placement time, the probe signal, and the weight of the third coke, it calculates... The coke consumption rate of the m-th coke feeding; the sinter consumption rate of the m-th sinter feeding calculated based on the feeding time, probe signal, and the weight of the third sinter; and the early warning of the raw material storage subsystem based on the real-time coke consumption data in the coke silo and the real-time sinter consumption data in the sinter silo; and the real-time control of the raw material production subsystem based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; and / or the real-time control of the raw material production subsystem based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo.

[0048] Understandably, the raw material balance early warning subsystem Z4 exchanges data through a data interface. For example, the raw material production subsystem Z1, the raw material storage subsystem Z2, and the raw material consumption subsystem Z3 all store their respective data in a database, and the raw material balance early warning subsystem Z4 obtains the required data through the corresponding data interface.

[0049] The blast furnace raw material balance and silo early warning system provided in this embodiment of the invention records the coke pushing time, the weight of the first coke, and the weight of the first sinter through the raw material production subsystem; monitors the coke silo and sinter silo status in real time through the raw material silo subsystem; records the coke feeding time and the weight of the third coke and the sinter feeding time and the weight of the third sinter through the raw material consumption subsystem; calculates the coke production and consumption balance based on the coke production rate and coke consumption rate; calculates the sinter balance based on the sinter production rate and sinter consumption rate; and controls the raw material production subsystem in real time to achieve real-time monitoring and adjustment of the raw material production and consumption balance, ensuring a sufficient supply of coke and sinter and stable operation of blast furnace ironmaking. The system of this invention regulates the production parameters of the coke oven and the sintering machine based on the blast furnace material consumption rate, and monitors and provides early warnings for the material storage. It realizes comprehensive monitoring and regulation of coke production, sinter production, storage status and consumption, thereby improving the utilization efficiency of coke and sinter, improving the stability of blast furnace materials, and balancing the production and consumption of coke and sinter in the raw materials.

[0050] According to an embodiment of the present invention, a method embodiment for blast furnace raw material balance and silo level early warning is provided. It should be noted that the steps shown in the flowchart in the accompanying drawings can be executed in a computer system such as a set of computer-executable instructions. Furthermore, although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in a different order than that shown here.

[0051] This embodiment provides a method for blast furnace raw material balance and silo level early warning, which can be used in the aforementioned blast furnace raw material balance and silo level early warning system. Figure 2 This is a flowchart of a method for blast furnace raw material balance and silo level early warning according to an embodiment of the present invention, such as... Figure 2 As shown, the process includes the following steps: Step S101: Obtain the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, the feeding time, the weight of the third coke, and the weight of the third sinter.

[0052] For example, the raw material balance early warning subsystem Z4 obtains through the data interface of the raw material production subsystem Z1 that the time of the 12th coke push is 12:05 and the weight of the first coke in the 12th push is 30t; the raw material balance early warning subsystem Z4 obtains through the data interface of the raw material storage subsystem Z2 that the weight of the second coke transported in the 12th trip is 28t, the consumption data of the coke silo, and the consumption data of the sintering ore silo (e.g., real-time weight data transmitted by the weight sensor); the raw material balance early warning subsystem Z4 obtains through the data interface of the raw material consumption subsystem that the weight of the third coke corresponding to the 11th material placement is 29t and the material placement time corresponding to the 11th material placement is 14:05.

[0053] Furthermore, due to the numerous steps and processes between the coke pushing and material feeding processes, and the difference in coke demand between material feeding and coke pushing, the number of coke pushing operations (n) and the number of material feeding operations (m) are not equal. This means that when the 15th coke pushing operation is performed, the 10th or 20th material feeding operation may be underway. Whether the number of coke pushing and material feeding operations corresponds or not does not affect the comparability of the subsequent calculations between coke production rate and coke consumption rate.

[0054] Step S102: Calculate the coke production rate corresponding to the nth coke push based on the push time of the nth coke push, the weight of the first coke, and the weight of the second coke.

[0055] For example, it is known that the 11th coke push time is 12:05, the weight of the first coke pushed in the 11th coke push is 30t, and the weight of the second coke pushed in the 11th coke push is 28t. Through various speed calculation methods in related technologies, the coke production speed can be obtained as 2.14t per minute.

[0056] Step S103: The sinter production speed is calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter.

[0057] Different sinter ratios, sintering machine speeds, and sintering machine parameters will result in variations in the quality of the sinter produced. After processing, the sinter undergoes ring cooling and screening before being stored in a sinter silo. The production of sinter during this process is generally relatively stable. Therefore, the sinter produced by the raw material production subsystem is the first sinter weight, and the sinter after ring cooling and screening is the second sinter weight. Different sinter ratios, parameters, and adjustments to other production parameters will result in variations in the first sinter weight, and the second sinter weight will also vary after processing. Therefore, based on big data analysis under different production conditions, real-time weighing of the sinter before it enters the sinter silo is used as the second sinter weight. The sintering speed is calculated based on the conversion efficiency between the first and second sinter weights.

[0058] Step S104: Calculate the coke consumption rate of the m-th blast furnace charge feeder based on the feeding time, probe signal, and third coke weight.

[0059] Specifically, when the blast furnace probe is raised, coke is fed. After m feeding cycles, the coke consumption rate of the mth blast furnace feed hopper is calculated by the weight of the third coke and the feeding time.

[0060] Step S105: Calculate the sinter consumption rate of the m-th blast furnace charge hopper sinter feeding based on the feeding time, probe signal, and the weight of the third sinter.

[0061] Specifically, when the blast furnace probe is raised, it is carried out in a cycle with the coke feeding, that is, a batch of coke is fed and a batch of sinter is fed. After m times of sinter feeding, the sinter consumption rate of the mth blast furnace sinter feeding is calculated by the weight of the third sinter and the feeding time.

[0062] Step S106: Based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, an early warning is issued to the raw material storage subsystem.

[0063] For example, the materials in the raw material storage subsystem Z2 (including coke and sinter) should always meet the amount of molten iron produced by the blast furnace hopper in 8 hours, and the actual coke or sinter inventory in the storage should not exceed 80% of the coke hopper being filled with coke or the sinter hopper being filled with sinter. Otherwise, the raw material balance early warning subsystem Z4 will issue an early warning to the raw material storage subsystem Z2.

[0064] Step S107: Real-time control of the raw material production subsystem is performed based on at least two of the following data: coke production speed, coke consumption speed, and real-time coke consumption data in the coke silo; or real-time control of the raw material production subsystem is performed based on at least two of the following data: sinter production speed, sinter consumption speed, and real-time sinter consumption data in the sinter silo.

[0065] Specifically, at least two data points refer to the selection of at least two indicators from "coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo" for analysis, and the analysis is used to control the raw material production subsystem Z1. For example, the coke production rate (2.14t / min), coke consumption rate (2.5t / min), and real-time coke consumption data in the coke silo (real-time monitoring data from gravity sensors) are selected, analyzed, and processed to generate control commands to control the coke oven parameters of the raw material production subsystem Z1 to achieve the target indicators (e.g., coke consumption rate = coke production rate = 2.5t / min).

[0066] or, At least two data points refer to the selection of at least two indicators from "sinter production rate, sinter consumption rate, and real-time consumption data of sinter in the sinter silo" for analysis, and the control of the raw material production subsystem Z1. For example, the sinter production rate (2.14t / min), sinter consumption rate (2.5t / min), and real-time coke consumption data in the sinter silo (real-time monitoring data from gravity sensors) are selected, analyzed, and processed to generate control commands to control the sintering machine parameters of the raw material production subsystem Z1 to achieve the target indicators (e.g., sinter consumption rate = sinter production rate = 2.5t / min).

[0067] The blast furnace raw material balance and silo level early warning method provided in this embodiment acquires the coke pushing time, the weight of the first coke and the weight of the first sinter, monitors the status of the coke and sinter silos in real time, the coke charging time, and the weight of the third coke and sinter charging. It calculates the coke production-consumption balance based on the coke production rate and coke consumption rate, and calculates the sinter balance based on the sinter production rate and sinter consumption rate, and performs corresponding real-time control. This achieves real-time monitoring and adjustment of raw material production-consumption balance, ensuring a sufficient supply of coke and sinter and stable operation of the blast furnace ironmaking. The method of this invention regulates the coke oven production parameters and sintering machine production parameters based on the blast furnace material consumption rate, and monitors and provides early warnings for material silos. This achieves comprehensive monitoring and adjustment of coke production, sinter production, silo status, and consumption, thereby improving the utilization efficiency of coke and sinter, enhancing the stability of blast furnace materials, and balancing the production and consumption of coke and sinter in the raw materials.

[0068] This embodiment provides a method for blast furnace raw material balance and silo level early warning, which can be used in the aforementioned blast furnace raw material balance and silo level early warning system, etc. Figure 3 This is a flowchart of a method for blast furnace raw material balance and silo level early warning according to an embodiment of the present invention, such as... Figure 3 As shown, the process includes the following steps: Step S201: Obtain the pushing time of the nth coke push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, real-time coke consumption data in the coke silo, real-time sinter consumption data in the sinter silo, the feeding time, the weight of the third coke, and the weight of the third sinter. For details, please refer to [link to relevant documentation]. Figure 2 Step S101 of the illustrated embodiment will not be described again here.

[0069] Step S202: Calculate the coke production rate corresponding to the nth coke push based on the push time of the nth coke push, the weight of the first coke, and the weight of the second coke.

[0070] Specifically, step S202 includes: Step S2021: The coke conversion efficiency is obtained based on the weight of the first coke and the weight of the second coke.

[0071] By statistically analyzing the weight of coke in the coke oven (first coke weight) and the weight of the batch of coke transported to the raw material storage subsystem (second coke weight), the coke conversion efficiency 'a' under different coking times and different coal types can be determined.

[0072] It should be noted that in the embodiments of the present invention, the coking time represents a certain moment, and the coking time is the time difference between the coal charging time and the coking time, which can also be understood as the time for coal to form coke through dry distillation.

[0073] The coke conversion efficiency 'a' at different coke pushing times can be determined. Based on the weights of the first coke W1 and the second coke W2, the coke conversion efficiency 'a' is calculated using the following formula: a = W2 / W1; In this embodiment, a correlation model can also be formed based on the coke conversion efficiency α. This correlation model can determine the correspondence between the weight of the first coke and the weight of the second coke at different coke pushing times, and is stored in the database.

[0074] Step S2022: Based on the obtained coke conversion efficiency, the weight of the first coke, and the coke pushing time of the nth coke pushing, calculate the coke production rate corresponding to the nth coke pushing.

[0075] The coke production rate corresponding to the nth coke push is calculated using the following formula: ; in, Let n be the coke production rate corresponding to the nth coke push. Let be the coke conversion efficiency for the (n+1)-ith coke push. The weight of the first coke in the (n+1)-ith coke push is... This is the nth focusing moment. The total number of focus pushes. This is the ncth focusing moment; This indicates the preset number of coke pushes that need to be referenced before the nth coke push when calculating the coke production rate corresponding to the nth coke push.

[0076] It should be noted that when calculating the coke production rate of the current coke pushing process, the coke pushing process before the current one is taken into account; for example, when calculating the coke production rate of the 22nd coke pushing process, the 21st, 20th, 19th, and up to the 12th coke pushing processes are taken into account, totaling the previous 10 (i.e., the first 10). The data from each focus push is calculated using the following formula: ; also, This setting is due to the potential differences in the number of times coke is produced each time. It can be preset to 5, 10, 15, etc. The specific data set should ensure that fluctuations and errors are reduced when calculating the production speed. It should be noted that if... Since the value has been determined, when calculating the speed multiple times, The data cannot be changed to reduce errors in calculation speed and ensure the stability of the calculated speed.

[0077] For example, Taking 5, the coke consumption rate during the 100th fabric placement is: (Q) 100 a 100 +Q 99 a 99 +Q 98 a 98 +Q 97 a 97 +Q 96 a 96 ) / (t 100 -t 95 ).

[0078] The blast furnace raw material balance and silo early warning method provided in this invention calculates the coke conversion efficiency using the weights of the first and second cokes. This efficiency represents the conversion efficiency level during coke production, ensuring the accuracy of the speed calculation. Based on the obtained coke conversion efficiency, and combined with the parameters from the coking process closest to the current coking time when calculating each speed, the method can represent the changes in the past coke production process. This provides valuable reference for calculating the coke production speed during the current coking process, thus enabling a more accurate calculation of the coke production speed and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo subsystem.

[0079] Step S203: The sinter production rate is calculated based on the weight of the first sinter and the weight of the second sinter after ring cooling screening.

[0080] Specifically, step S203 includes: Step S2031: The sinter conversion efficiency is obtained based on the weight of the first sinter and the weight of the second sinter.

[0081] Specifically, the production time of the sintering machine and the sinter produced during that time are recorded. The weight obtained by weighing is the first sinter weight W1'. This batch of sinter is then transferred to the raw material storage subsystem for ring cooling screening, resulting in the second sinter weight W2'. The sinter conversion efficiency a' can be determined using the first sinter weight W1' and the second sinter weight W2'. The sinter conversion efficiency a' is calculated using the following formula: a' = W2' / W1'.

[0082] By statistically analyzing the weights of the first and second sinter produced from sintered ore, the conversion efficiency a' of sintered ore can be determined under different sintering machine speeds and different ore types.

[0083] Step S2032: Calculate the sinter production rate based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine.

[0084] Specifically, the sinter production rate is calculated by multiplying the weight of the first sinter by the sinter conversion efficiency and dividing by the production time of the sintering machine.

[0085] The blast furnace raw material balance and silo level early warning method provided in this embodiment obtains the sinter conversion efficiency based on the weights of the first and second sinters, and calculates the sinter production rate based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine. This provides a valuable reference for calculating the current sinter production rate, thereby enabling a more accurate calculation of the sinter production rate and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo level subsystem.

[0086] Step S204: Calculate the coke consumption rate of the m-th coke feeding based on the feeding time, probe signal, and third coke weight.

[0087] Specifically, when the probe signal is a lifting signal, the coke consumption rate of the m-th blast furnace coke distribution is calculated using the following formula: ; When the probe signal is a release signal, the coke consumption rate of the m-th blast furnace coke charging is calculated using the following formula:

[0088] in: This represents the coke consumption rate of the m-th coke-laying process. Indicates the first The third coke weight of the secondary coke fabric Indicates the first The third coke weight of the secondary coke fabric This indicates the time of the m-th cloth placement. This indicates the time of the mkth cloth placement. This indicates the preset number of coke feeding operations that need to be referenced before the m-th coke feeding operation when calculating the coke consumption rate of the m-th coke feeding operation.

[0089] The calculation of coke consumption rate does not involve coke loss, or the slight loss is negligible; therefore, it is not necessary to calculate coke conversion efficiency. The settings are due to differences in the coke content of the fabric; therefore, they can be set to 5 times, 10 times, 15 times, etc. The specific settings should ensure that fluctuations and errors are minimized when calculating the consumption rate. If Since the value has been determined, when calculating the speed multiple times, The data cannot be changed to reduce errors in calculation speed and ensure the stability of the calculated speed. For example... Taking 5, the coke consumption rate during the 100th fabric placement is: (Q) 100 +Q 99 +Q 98 +Q 97 +Q 96) / (t 100 -t 95 ).

[0090] For example, as shown in Table 1, when lifting the measuring tape to apply the coke, When the value is 10, the coke consumption rate is:

[0091] When setting up the measuring tape after the coking is complete, When the value is 10, the coke consumption rate is:

[0092] The coke consumption rate can also be obtained using the total consumed weight over the coke placement time. For example, assuming that in sequence 1, the lifting of the measuring rod is performed, signal X1 represents the opening of the feed hopper, and Y1 represents the weight of the coke, then in sequence 2, the unloading of the measuring rod corresponds to Y2, which represents the weight of the ore. The time corresponding to position 41 is t. 41 At this point, coke is laid out, and the weight of the laid coke is Y41.

[0093] The corresponding coke consumption rate at this point is the ratio of the total weight of the coke distributed in serial numbers 41 to 1 to the time difference between serial numbers 41 and 1:

[0094] in: This represents the coke consumption rate of the m-th coke-laying process. , , ,… , These represent the coke weights at coke placement times of serial numbers 41, 37, 33, 5, and 1, respectively.

[0095] The blast furnace raw material balance and silo early warning method provided in this invention, based on the charging time and the third coke weight, and the parameters closest to the current charging process when calculating the consumption rate, can represent the changes in the past coke consumption process. It has reference value for calculating the coke consumption rate in the current charging process, thereby more accurately calculating the coke consumption rate and providing a data foundation for subsequent monitoring and control of the raw material subsystem and raw material silo subsystem.

[0096] Step S205: Calculate the sinter consumption rate of the m-th sinter feeding based on the feeding time, probe signal, and the weight of the third sinter.

[0097] Specifically, when the probe signal is a lifting signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula: ; When the probe signal is the release signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula:

[0098] in: This represents the sinter consumption rate during the m-th sintering process. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. This indicates the time of the m-th cloth placement. This indicates the time of the (m-k')th cloth placement. This indicates the preset number of sintering feeds that need to be referenced before the m-th sintering feed when calculating the sintering consumption rate of the m-th sintering feed.

[0099] For example, as shown in Table 1, when the ore is lifted and distributed, When taking 10, the consumption rate of sintered ore is:

[0100] When setting out the measuring tape after the ore laying is completed. When taking 10, the consumption rate of sintered ore is:

[0101] The blast furnace raw material balance and bin position early warning method provided in this embodiment of the invention, based on the charging time and the weight of the third sinter and the parameters closest to the current charging process when calculating the consumption rate, can represent the changes in the past sinter consumption process and has reference value for calculating the sinter consumption rate in the current charging process. This allows for a more accurate calculation of the sinter consumption rate and provides a data foundation for subsequent monitoring and control of the raw material subsystem and raw material bin position subsystem.

[0102] Step S206: Based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo, an early warning is issued to the raw material silo subsystem. For details, please refer to [link to relevant documentation]. Figure 2 Step S106 of the illustrated embodiment will not be described again here.

[0103] Step S207: Real-time control of the raw material production subsystem is performed based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; or, real-time control of the raw material production subsystem is performed based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo. For details, please refer to [link to relevant documentation]. Figure 2 Step S107 of the illustrated embodiment will not be described again here.

[0104] This embodiment provides a method for blast furnace raw material balance and silo level early warning, which can be used in the aforementioned blast furnace raw material balance and silo level early warning system. Figure 4 This is a flowchart of a method for blast furnace raw material balance and silo level early warning according to an embodiment of the present invention, such as... Figure 4 As shown, the process includes the following steps: Step S301: Obtain the coking time of the nth coke push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, real-time coke consumption data in the coke silo, real-time sinter consumption data in the sinter silo, the feeding time, the weight of the third coke, and the weight of the third sinter. For details, please refer to [link to relevant documentation]. Figure 3 Step S201 of the illustrated embodiment will not be described again here.

[0105] Step S302: Calculate the coke production rate corresponding to the nth coke push based on the pushing time of the nth coke push, the weight of the first coke, and the weight of the second coke. For details, please refer to [link to relevant documentation]. Figure 3 Step S202 of the illustrated embodiment will not be described again here.

[0106] Step S303: The sinter production rate is calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter. For details, please refer to [link to relevant documentation]. Figure 3 Step S203 of the illustrated embodiment will not be described again here.

[0107] Step S304: Calculate the coke consumption rate for the m-th coke feeding operation based on the feeding time, probe signal, and the weight of the third coke. For details, please refer to [link to relevant documentation]. Figure 3 Step S204 of the illustrated embodiment will not be described again here.

[0108] Step S305: Calculate the sinter consumption rate for the m-th sinter feeding based on the feeding time, probe signal, and the weight of the third sinter. For details, please refer to [link to relevant documentation]. Figure 3 Step S205 of the illustrated embodiment will not be described again here.

[0109] Step S306: Based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, an early warning is issued to the raw material storage subsystem.

[0110] Specifically, step S306 includes: Step S3061: Based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, perform image fitting to obtain the real-time trend map of the coke silo and the real-time trend map of the sinter silo.

[0111] Specifically, real-time coke consumption data in the coke silo (e.g., real-time weight data transmitted by weight sensors) is fitted using polynomial fitting, curve fitting, or other methods to obtain a function expression representing the trend of parameter changes over time. Based on the fitted function expression and the time of acquisition of real-time monitoring data, the real-time coke silo parameters (i.e., real-time coke inventory) are calculated and plotted as a real-time, dynamically updated trend chart. The process of obtaining a real-time trend chart for the sinter silo by image fitting based on real-time sinter consumption data in the sinter silo is the same as that for obtaining a real-time trend chart for the coke silo by image fitting based on real-time coke consumption data in the coke silo, and will not be repeated here.

[0112] Step S3062: Determine the real-time coke inventory and real-time sinter inventory of the raw material storage subsystem based on the real-time trend chart of the coke storage bin and the real-time trend chart of the sinter storage bin.

[0113] Specifically, the latest real-time coke inventory of the coke silos can be obtained from the real-time trend chart of the coke silos. The latest real-time sinter inventory of the sinter ore silos can be obtained from the real-time trend chart of the sinter ore silos.

[0114] Step S3063: Based on the relationship between the real-time coke inventory and the preset coke inventory threshold of the raw material storage subsystem, and the relationship between the real-time sinter inventory and the preset sinter inventory threshold, the raw material storage subsystem is given an early warning.

[0115] The preset coke inventory thresholds include a first preset coke inventory threshold, a second preset coke inventory threshold, and a third preset coke inventory threshold. The second preset coke inventory threshold is greater than the first preset coke inventory threshold and less than the third preset coke inventory threshold. For example, the first preset coke inventory threshold can be set to the amount of coke in the coke silo sufficient for 8 hours of blast furnace operation; the second preset coke inventory threshold can be set to the amount of coke in the coke silo sufficient to fill 80% of the silo; and the third preset coke inventory threshold can be set to the amount of coke in the coke silo sufficient for 16 hours of blast furnace operation.

[0116] The preset sinter inventory thresholds include a first preset sinter inventory threshold, a second preset sinter inventory threshold, and a third preset sinter inventory threshold, wherein the second preset sinter inventory threshold is greater than the first preset sinter inventory threshold and less than the third preset sinter inventory threshold. For example, the first preset sinter inventory threshold can be set to ensure that the actual sinter inventory in the sinter silo meets the sinter quantity required for 8 hours of blast furnace feed; the second preset sinter inventory threshold can be set to ensure that the sinter inventory in the sinter silo is 80% full; and the third preset sinter inventory threshold can be set to ensure that the actual sinter inventory in the sinter silo meets the sinter quantity required for 16 hours of blast furnace feed.

[0117] In an optional implementation, step S3063 includes: Step a1: If the real-time coke inventory of the raw material storage subsystem is lower than the first preset coke inventory threshold and higher than the second preset coke inventory threshold, then the first warning signal is triggered.

[0118] Specifically, if the actual coke inventory in the coke silo of the raw material storage subsystem Z2 always meets the amount of coke needed for the blast furnace feed hopper for 8 hours, and the actual coke inventory in the coke silo does not exceed 80% of the coke silo being filled with coke, then the first warning signal of the raw material balance early warning subsystem Z4 is triggered. Step a2: If the real-time sinter inventory of the raw material storage subsystem is lower than the first preset sinter inventory threshold and higher than the second preset sinter inventory threshold, then the first warning signal is triggered.

[0119] Specifically, if the actual sinter stock in the sinter ore silo of the raw material silo subsystem Z2 always meets the amount of sinter ore needed for 8 hours of blast furnace operation, and the actual sinter stock in the sinter ore silo does not exceed 80% of the sinter ore silo being filled with coke, then the first warning signal of the raw material balance early warning subsystem Z4 is triggered.

[0120] Step a3: Issue an early warning to the raw material storage subsystem based on the first warning signal.

[0121] Specifically, the first warning signal of the raw material balance early warning subsystem Z4 will be triggered when either step a1 or step a2 occurs. When step a1 occurs, the raw material balance early warning subsystem Z4 will issue an alarm for the coke silo level. When step a2 occurs, the raw material balance early warning subsystem Z4 will issue an alarm for the sinter ore silo level.

[0122] When both steps a1 and a2 occur simultaneously, the raw material balance early warning subsystem Z4 will issue an alarm for the coke silo and sinter silo levels.

[0123] Step S307: Real-time control of the raw material production subsystem is performed based on at least two of the following data: coke production speed, coke consumption speed, and real-time coke consumption data in the coke silo; and / or, real-time control of the raw material production subsystem is performed based on at least two of the following data: sinter production speed, sinter consumption speed, and real-time sinter consumption data in the sinter silo.

[0124] Specifically, step S307 includes: Step S3071: Real-time control of the coking speed of the raw material production subsystem is performed based on at least two of the following: preset coke inventory threshold, coke production speed, coke consumption speed, and real-time coke inventory of the raw material storage subsystem.

[0125] In some optional implementations, step S3071 above includes: Step b1: If the real-time coke inventory of the raw material storage subsystem is lower than the third preset coke inventory threshold and the coke consumption rate is greater than the coke production rate, a second warning signal is triggered. Based on the second warning signal, the coking rate of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate.

[0126] Specifically, if the coke consumption rate in the raw material consumption subsystem Z3 is greater than the coke production rate in the raw material production subsystem Z1, and the real-time coke inventory in the coke silos of the raw material storage subsystem Z2 is lower than the blast furnace's 16-hour consumption, then the second warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the second warning signal, the raw material balance early warning subsystem Z4 controls the increase of the coking rate in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate. Increasing the coking rate in the raw material production subsystem Z1 can adjust coke oven parameters, such as shortening the coking time, thereby increasing the coke output in the coke oven and making the coke consumption rate equal to the coke production rate.

[0127] Step b2: If the coke consumption rate is greater than the coke production rate and the duration is greater than the preset time, a third warning signal is triggered. Based on the third warning signal, the coking speed of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate.

[0128] Specifically, the preset time can be set to 24 hours. If the coke consumption rate in the raw material consumption subsystem Z3 is greater than the coke production rate in the raw material production subsystem Z1, and this continues for more than 24 hours, then the third warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the third warning signal, the raw material balance early warning subsystem Z4 controls the increase of the coking rate in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate. Increasing the coking rate in the raw material production subsystem Z1 can adjust coke oven parameters, such as shortening the coking time, thereby increasing the coke output in the coke oven and making the coke consumption rate equal to the coke production rate.

[0129] Step b3: If the coke consumption rate is less than the coke production rate and the duration is longer than the preset time, a fourth warning signal is triggered. Based on the fourth warning signal, the coking speed of the raw material production subsystem is reduced until the coke consumption rate equals the coke production rate.

[0130] Specifically, the preset time can be set to 24 hours. If the coke consumption rate in the raw material consumption subsystem Z3 is less than the coke production rate in the raw material production subsystem Z1, and this period exceeds 24 hours, then the fourth warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the fourth warning signal, the raw material balance early warning subsystem Z4 controls the reduction of the coking rate in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate. Reducing the coking rate in the raw material production subsystem Z1 can adjust coke oven parameters, such as extending the coking time, thereby reducing the coke output in the coke oven and making the coke consumption rate equal to the coke production rate.

[0131] The blast furnace raw material balance and silo level early warning method provided in this embodiment addresses the risk of a continuous decrease in silo level if the consumption rate exceeds the production rate. Coke falling into the silo would significantly reduce coke particle size and affect coke quality. By determining that the real-time coke inventory in the raw material silo subsystem is higher than a second preset coke inventory threshold, and that the coke consumption rate exceeds the coke production rate, or by determining that the coke consumption rate exceeds the coke production rate for a duration exceeding a preset time, the coking speed is controlled to effectively ensure coke quality. Conversely, if the consumption rate is lower than the production rate, there is a possibility of a continuous increase in silo level, which could lead to a risk of coke falling from the silo and affecting coke quality. If the coke consumption rate is lower than the coke production rate for a duration exceeding a preset time, an excessively high coke silo level may occur. In this case, the coking speed of the coke oven control system is reduced until the coke consumption rate equals the coke production rate, thus effectively ensuring coke quality.

[0132] Step S3072: Based on at least two of the preset sinter stock threshold, sinter production speed, sinter consumption speed, and real-time sinter stock in the raw material storage subsystem, the sintering machine speed of the raw material production subsystem is controlled in real time.

[0133] In some optional implementations, step S3072 above includes: Step c1: If the real-time sinter inventory of the raw material storage subsystem is lower than the third preset sinter inventory threshold and the sinter consumption rate is greater than the sinter production rate, then the fifth warning signal is triggered. Based on the fifth warning signal, the speed of the sintering machine in the raw material production subsystem is increased until the sinter consumption rate equals the sinter production rate.

[0134] Specifically, if the sinter consumption rate in the raw material consumption subsystem Z3 is greater than the sinter production rate in the raw material production subsystem Z1, and the real-time sinter inventory in the sinter silo of the raw material storage subsystem Z2 is lower than the amount of sinter used in the blast furnace hopper for 16 hours, then the fifth warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the fifth warning signal, the raw material balance early warning subsystem Z4 controls the increase of the sintering machine speed in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate.

[0135] Step c2: If the sinter consumption rate is greater than the sinter production rate and the duration is greater than the preset time, then the sixth warning signal is triggered. Based on the sixth warning signal, the speed of the sintering machine in the raw material production subsystem is increased until the sinter consumption rate equals the sinter production rate.

[0136] Specifically, the preset time can be set to 24 hours. If the sinter consumption rate in the raw material consumption subsystem Z3 is greater than the sinter production rate in the raw material production subsystem Z1, and this lasts for more than 24 hours, then the sixth warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the sixth warning signal, the raw material balance early warning subsystem Z4 controls the increase of the sintering machine speed in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate.

[0137] Step c3: If the sinter consumption rate is less than the sinter production rate and the duration is longer than the preset time, then the seventh warning signal is triggered. Based on the seventh warning signal, the speed of the sintering machine in the raw material production subsystem is reduced until the sinter consumption rate equals the sinter production rate.

[0138] Specifically, the preset time can be set to 24 hours. If the sinter consumption rate in the raw material consumption subsystem Z3 is less than the sinter production rate in the raw material production subsystem Z1, and this period exceeds 24 hours, then the seventh warning signal of the raw material balance early warning subsystem Z4 is triggered. Based on the seventh warning signal, the raw material balance early warning subsystem Z4 controls the reduction of the sintering machine speed in the raw material production subsystem Z1 until the coke consumption rate equals the coke production rate.

[0139] The blast furnace raw material balance and silo level early warning method provided in this embodiment addresses the issue that when the material production rate exceeds the consumption rate, it leads to a large amount of coke or sinter falling to the ground, severely impacting raw material quality. Conversely, when the material production rate is less than the consumption rate, the silos remain at low levels for extended periods, potentially causing unplanned blast furnace shutdowns due to material shortages. This embodiment effectively integrates the consumption of materials in the blast furnace silos with the production of coke and sinter, avoiding material shortages and quality fluctuations caused by mismatches in production between the sintering machine and blast furnace, or between the coke oven and blast furnace. Combining the production and consumption rates of blast furnace materials significantly reduces silo volume and floor space requirements, preventing difficulties in blast furnace silo construction caused by land scarcity around the blast furnace. This embodiment facilitates unified management of blast furnace material production and consumption, enhances automated control of the long-process ironmaking process, and enables integrated management of key production equipment such as blast furnaces, coke ovens, and sintering machines. In particular, it provides timely responses to material management imbalances caused by blast furnace fluctuations.

[0140] This embodiment also provides a device for blast furnace raw material balancing and bin level early warning. This device is used to implement the above embodiments and preferred embodiments, and details already described will not be repeated. As used below, the term "module" can refer to a combination of software and / or hardware that performs a predetermined function. Although the device described in the following embodiments is preferably implemented in software, hardware implementation, or a combination of software and hardware, is also possible and contemplated.

[0141] This embodiment provides a device for blast furnace raw material balance and bin level early warning, applied to... Figure 1 The system shown is a blast furnace raw material balance and silo level early warning system, such as Figure 5 As shown, it includes: The acquisition module 501 is used to acquire the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, the material feeding time, the weight of the third coke and the weight of the third sinter.

[0142] The first calculation module 502 is used to calculate the coke production rate corresponding to the nth coke push based on the push time of the nth coke push, the weight of the first coke, and the weight of the second coke.

[0143] The second calculation module 503 is used to calculate the sinter production speed based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter.

[0144] The third calculation module 504 is used to calculate the coke consumption rate of the m-th blast furnace charge feeder based on the feeding time, probe signal, and third coke weight.

[0145] The fourth calculation module 505 is used to calculate the sinter consumption rate of the m-th blast furnace charge hopper sinter feeding based on the feeding time, probe signal, and the weight of the third sinter.

[0146] The early warning module 506 is used to provide early warnings to the raw material storage subsystem based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo.

[0147] The control module 507 is used to perform real-time control of the raw material production subsystem based on at least two of the following data: coke production speed, coke consumption speed, and real-time coke consumption data in the coke silo; and / or, to perform real-time control of the raw material production subsystem based on at least two of the following data: sinter production speed, sinter consumption speed, and real-time sinter consumption data in the sinter silo.

[0148] In some alternative implementations, the first computing module 502 includes: The first calculation unit is used to obtain the coke conversion efficiency based on the weight of the first coke and the weight of the second coke.

[0149] The second calculation unit is used to calculate the coke production rate corresponding to the nth coke push based on the obtained coke conversion efficiency, the weight of the first coke, and the push time of the nth coke push.

[0150] In some alternative implementations, the second computing module 503 includes: The third calculation unit is used to obtain the sinter conversion efficiency based on the weight of the first sinter and the weight of the second sinter.

[0151] The fourth calculation unit is used to calculate the sinter production rate based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine.

[0152] In some alternative implementations, the warning module 506 includes: The fitting unit is used to perform image fitting based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo to obtain the real-time trend map of the coke silo and the real-time trend map of the sinter silo.

[0153] The determination unit is used to determine the real-time coke inventory and real-time sinter inventory of the raw material storage subsystem based on the real-time trend map of the coke storage silo and the real-time trend map of the sinter storage silo.

[0154] The early warning unit is used to provide early warnings to the raw material storage subsystem based on the relationship between the real-time coke inventory and the preset coke inventory threshold, as well as the relationship between the real-time sinter inventory and the preset sinter inventory threshold.

[0155] In some optional implementations, the preset coke inventory threshold includes a first preset coke inventory threshold and a second preset coke inventory threshold, wherein the second preset coke inventory threshold is greater than the first preset coke inventory threshold; the preset sinter inventory threshold includes a first preset sinter inventory threshold and a second preset sinter inventory threshold, wherein the second preset sinter inventory threshold is greater than the first preset sinter inventory threshold. The early warning unit also includes: The comparison subunit is used to trigger a first warning signal if the real-time coke inventory of the raw material storage subsystem is lower than a first preset coke inventory threshold and higher than a second preset coke inventory threshold, and / or if the real-time sinter inventory of the raw material storage subsystem is lower than a first preset sinter inventory threshold and higher than a second preset sinter inventory threshold.

[0156] The early warning subunit is used to issue early warnings to the raw material storage subsystem based on the first warning signal.

[0157] In some alternative implementations, the control module 507 includes: The coking speed control unit is used to control the coking speed of the raw material production subsystem in real time based on at least two of the following: a preset coke inventory threshold, coke production speed, coke consumption speed, and real-time coke inventory of the raw material storage subsystem.

[0158] The sintering machine speed control unit is used to control the sintering machine speed of the raw material production subsystem in real time based on at least two of the following: a preset sintering ore inventory threshold, sintering ore production speed, sintering ore consumption speed, and the real-time sintering ore inventory of the raw material storage subsystem.

[0159] In some optional embodiments, the preset coke inventory threshold further includes a third preset coke inventory threshold, which is greater than the second preset coke inventory threshold. The coking speed control unit includes: The first coking speed control subunit is used to trigger a second warning signal if the real-time coke inventory of the raw material storage subsystem is lower than the third preset coke inventory threshold and the coke consumption rate is greater than the coke production rate. Based on the second warning signal, the coking speed of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate.

[0160] The second coking speed control subunit is used to trigger a third warning signal if the coke consumption rate is greater than the coke production rate and the duration is greater than a preset time. Based on the third warning signal, the coking speed of the raw material production subsystem is increased until the coke consumption rate equals the coke production rate.

[0161] The third coking speed control subunit is used to trigger a fourth warning signal if the coke consumption rate is less than the coke production rate and the duration is longer than a preset time. Based on the fourth warning signal, the coking speed of the raw material production subsystem is reduced until the coke consumption rate equals the coke production rate.

[0162] In some optional embodiments, the preset sinter stock threshold further includes a third preset sinter stock threshold, which is greater than the second preset sinter stock threshold; the sintering machine speed control unit includes: The first sintering machine speed control subunit is used to trigger a fifth warning signal if the real-time sintering ore inventory of the raw material storage subsystem is higher than the third preset sintering ore inventory threshold and the sintering ore consumption rate is greater than the sintering ore production rate. Based on the fifth warning signal, the sintering machine speed of the raw material production subsystem is controlled to be increased until the sintering ore consumption rate equals the sintering ore production rate. The second sintering machine speed control subunit is used to trigger a sixth warning signal if the sinter consumption rate is greater than the sinter production rate and the duration is greater than a preset time. Based on the sixth warning signal, the sintering machine speed of the raw material production subsystem is increased until the sinter consumption rate equals the sinter production rate. The third sintering machine speed control subunit is used to trigger a seventh warning signal if the sinter consumption rate is less than the sinter production rate and the duration is longer than a preset time. Based on the seventh warning signal, the sintering machine speed of the raw material production subsystem is reduced until the sinter consumption rate equals the sinter production rate.

[0163] Further functional descriptions of the above modules and units are the same as those in the corresponding embodiments described above, and will not be repeated here.

[0164] In this embodiment, the blast furnace raw material balance and silo level early warning device is presented in the form of a functional unit. Here, a unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that execute one or more software or fixed programs, and / or other devices that can provide the above functions.

[0165] This invention also provides a computer device having the above-described features. Figure 5 The device shown is for blast furnace raw material balance and silo level early warning.

[0166] Please see Figure 6 , Figure 6 This is a schematic diagram of the structure of a computer device provided in an optional embodiment of the present invention, such as... Figure 6 As shown, the computer device includes one or more processors 10, memory 20, and interfaces for connecting the components, including high-speed interfaces and low-speed interfaces. The components communicate with each other via different buses and can be mounted on a common motherboard or otherwise installed as needed. The processors can process instructions executed within the computer device, including instructions stored in or on memory to display graphical information of a GUI on external input / output devices (such as display devices coupled to the interfaces). In some alternative implementations, multiple processors and / or multiple buses can be used with multiple memories and multiple memory modules, if desired. Similarly, multiple computer devices can be connected, each providing some of the necessary operations (e.g., as a server array, a group of blade servers, or a multiprocessor system). Figure 6 Take a processor 10 as an example.

[0167] Processor 10 may be a central processing unit, a network processor, or a combination thereof. Processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD), or a combination thereof. The programmable logic device may be a complex programmable logic device (CAMP), a field-programmable gate array (FPGA), a general-purpose array logic (GDA), or any combination thereof.

[0168] The memory 20 stores instructions executable by at least one processor 10 to cause the at least one processor 10 to perform the method shown in the above embodiments.

[0169] The memory 20 may include a program storage area and a data storage area. The program storage area may store the operating system and applications required for at least one function; the data storage area may store data created based on the use of the computer device. Furthermore, the memory 20 may include high-speed random access memory and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some alternative embodiments, the memory 20 may optionally include memory remotely located relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0170] The memory 20 may include volatile memory, such as random access memory; the memory may also include non-volatile memory, such as flash memory, hard disk or solid-state drive; the memory 20 may also include a combination of the above types of memory.

[0171] The computer device also includes an input device 30 and an output device 40. The processor 10, memory 20, input device 30, and output device 40 can be connected via a bus or other means. Figure 6 Taking the example of a connection between China and Israel via a bus.

[0172] Input device 30 can receive input numerical or character information, and generate key signal inputs related to user settings and function control of the computer device, such as a touchscreen, keypad, mouse, trackpad, touchpad, joystick, one or more mouse buttons, trackball, joystick, etc. Output device 40 may include display devices, auxiliary lighting devices (e.g., LEDs), and haptic feedback devices (e.g., vibration motors). The aforementioned display devices include, but are not limited to, liquid crystal displays, light-emitting diodes, displays, and plasma displays. In some alternative embodiments, the display device may be a touchscreen.

[0173] This invention also provides a computer-readable storage medium. The methods described above according to embodiments of the invention can be implemented in hardware or firmware, or implemented as computer code that can be recorded on a storage medium, or implemented as computer code downloaded via a network and originally stored on a remote storage medium or a non-transitory machine-readable storage medium and then stored on a local storage medium. Thus, the methods described herein can be processed by software stored on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. The storage medium can be a magnetic disk, optical disk, read-only memory, random access memory, flash memory, hard disk, or solid-state drive, etc.; further, the storage medium can also include combinations of the above types of memory. It is understood that computers, processors, microprocessor controllers, or programmable hardware include storage components capable of storing or receiving software or computer code, which, when accessed and executed by the computer, processor, or hardware, implements the methods shown in the above embodiments.

[0174] Although embodiments of the invention have been described in conjunction with the accompanying drawings, those skilled in the art can make various modifications and variations without departing from the spirit and scope of the invention, and such modifications and variations all fall within the scope defined by the appended claims.

Claims

1. A system for blast furnace raw material balance and bin level early warning, characterized in that, The system includes: a raw material production subsystem, a raw material storage subsystem, a raw material consumption subsystem, and a raw material balance early warning subsystem; The raw material production subsystem includes a coke oven, a sintering machine, and a first control module. The coke oven is used to produce coke and transport it to the coke silo in the raw material storage subsystem. The sintering machine is used to produce sinter and transport it to the sinter ore silo in the raw material storage subsystem. The first control module is used to control n coke pushing operations during the coking process in the coke oven and to record the pushing time of the nth coke pushing and the weight of the first coke produced after the nth coke pushing. The first control module is also used to control the sintering machine speed during the sinter production process and to record the sintering machine's production time and the weight of the first sinter produced. The raw material storage subsystem includes a coke silo, a sinter ore silo, and a monitoring module. Both the coke silo and the sinter ore silo are connected to the monitoring module. The coke silo is used to store the coke from the nth push of the coke oven and to record the weight of the second coke after the nth push and nth transport of coke from the coke oven and after quenching. The sinter ore silo is used to store the sinter produced by the sintering machine and to record the weight of the second sinter after the sinter has been screened by the ring cooler. The monitoring module is used to acquire real-time coke consumption data in the coke silo and real-time sinter consumption data in the sinter ore silo. The raw material consumption subsystem includes a blast furnace feed hopper and a blast furnace probe. The blast furnace probe is used to send probe signals to the blast furnace feed hopper. The blast furnace feed hopper is used to distribute coke or sinter according to the probe signals, and records the distribution time of the m-th coke distribution, the weight of the third coke after the m-th coke distribution, the distribution time of the m-th sinter distribution, and the weight of the third sinter after the m-th distribution. The raw material balance early warning subsystem is used to acquire the pushing time of the nth coke push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, real-time coke consumption data in the coke silo, real-time sinter consumption data in the sinter silo, the material placement time, the weight of the third coke, and the weight of the third sinter; calculate the coke production rate corresponding to the nth coke push based on the pushing time, the weight of the first coke, and the weight of the second coke; calculate the sinter production rate based on the production time of the sintering machine, the weight of the first sinter, and the weight of the second sinter; and calculate the mth coke push based on the material placement time, the probe signal, and the weight of the third coke. The coke consumption rate of the coke feeding; the sinter consumption rate of the m-th sinter feeding calculated based on the feeding time, probe signal, and the weight of the third sinter; and the early warning of the raw material storage subsystem based on the real-time coke consumption data in the coke silo and the real-time sinter consumption data in the sinter silo; and the real-time control of the raw material production subsystem based on at least two of the coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo, and / or the real-time control of the raw material production subsystem based on at least two of the sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo.

2. A method for blast furnace raw material balance and silo level early warning, characterized in that, The system for blast furnace raw material balance and silo level early warning as described in claim 1, wherein the method comprises: Obtain the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke bin and the real-time consumption data of sinter in the sinter bin, the feeding time, the weight of the third coke and the weight of the third sinter. The coke production rate corresponding to the nth coke push is calculated based on the push time of the nth coke push, the weight of the first coke and the weight of the second coke. The sinter production rate is calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter. The coke consumption rate of the m-th coke feeding is calculated based on the feeding time, probe signal, and third coke weight. The sinter consumption rate of the m-th sintering process is calculated based on the fabrication time, probe signal, and the weight of the third sinter. The raw material storage subsystem is given an early warning based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo. The raw material production subsystem is controlled in real time based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo; and / or, the raw material production subsystem is controlled in real time based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo.

3. The method according to claim 2, characterized in that, Based on the pushing time of the nth coke push, the weight of the first coke, and the weight of the second coke, the coke production rate corresponding to the nth coke push is calculated as follows: The coke conversion efficiency is obtained based on the weight of the first coke and the weight of the second coke. The coke production rate corresponding to the nth coke push is calculated based on the obtained coke conversion efficiency, the weight of the first coke, and the push time of the nth coke push.

4. The method according to claim 3, characterized in that, The coke production rate corresponding to the nth coke push is calculated using the following formula: ； in, Let n be the coke production rate corresponding to the nth coke push. Let be the coke conversion efficiency for the (n+1)-ith coke push. The weight of the first coke in the (n+1)-ith coke push is... This is the nth focusing moment. The total number of focus pushes. This is the ncth focusing moment; This indicates the preset number of coke pushes that need to be referenced before the nth coke push when calculating the coke production rate corresponding to the nth coke push.

5. The method according to claim 2, characterized in that, The sinter production rate, calculated based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter, includes: The sinter conversion efficiency is obtained based on the weight of the first sinter and the weight of the second sinter. The sinter production rate is calculated based on the obtained sinter conversion efficiency, the weight of the first sinter, and the production time of the sintering machine.

6. The method according to claim 2, characterized in that, When the probe signal is a lifting signal, the coke consumption rate of the m-th coke feeding is calculated using the following formula: ； When the probe signal is the release signal, the coke consumption rate of the m-th coke feeding is calculated using the following formula: in: This represents the coke consumption rate of the m-th coke-laying process. Indicates the first The third coke weight of the secondary coke fabric Indicates the first The third coke weight of the secondary coke fabric This indicates the time of the m-th cloth placement. This indicates the time of the mkth cloth placement. This indicates the preset number of coke feeding operations that need to be referenced before the m-th coke feeding operation when calculating the coke consumption rate of the m-th coke feeding operation.

7. The method according to claim 2, characterized in that, When the probe signal is a lifting signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula: ； When the probe signal is the release signal, the sinter consumption rate of the m-th sinter feeding is calculated using the following formula: in: This represents the sinter consumption rate during the m-th sintering process. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. Indicates the first The weight of the third sintered ore in the secondary sintered ore fabric. This indicates the time of the m-th cloth placement. This indicates the time of the (m-k')th cloth placement. This indicates the preset number of sintering feeds that need to be referenced before the m-th sintering feed when calculating the sintering consumption rate of the m-th sintering feed.

8. The method according to claim 2, characterized in that, The early warning system for the raw material storage subsystem based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo includes: Based on the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, image fitting was performed to obtain the real-time trend map of the coke silo and the real-time trend map of the sinter silo. The real-time coke inventory and real-time sinter inventory of the raw material storage subsystem are determined based on the real-time trend charts of the coke silo and the sinter silo. The raw material storage subsystem is given an early warning based on the relationship between the real-time coke inventory and the preset coke inventory threshold, as well as the relationship between the real-time sinter inventory and the preset sinter inventory threshold.

9. The method according to claim 8, characterized in that, Real-time control of the raw material production subsystem is performed based on at least two of the following data: coke production rate, coke consumption rate, and real-time coke consumption data in the coke silo. And / or, real-time control of the raw material production subsystem is performed based on at least two of the following data: sinter production rate, sinter consumption rate, and real-time sinter consumption data in the sinter silo. The coking speed of the raw material production subsystem is controlled in real time based on at least two of the following: a preset coke inventory threshold, the coke production speed, the coke consumption speed, and the real-time coke inventory of the raw material storage subsystem. And / or, based on at least two of the following: a preset sinter stock threshold, the sinter production speed, the sinter consumption speed, and the real-time sinter stock of the raw material storage subsystem, the sintering machine speed of the raw material production subsystem is controlled in real time.

10. A device for blast furnace raw material balancing and bin level early warning, characterized in that, The system for blast furnace raw material balance and silo level early warning as described in claim 1, the device comprising: The acquisition module is used to acquire the coking time of the nth coking push, the weight of the first coke, the production time of the sintering machine, the weight of the first sinter, the weight of the second coke, the weight of the second sinter, the real-time consumption data of coke in the coke silo and the real-time consumption data of sinter in the sinter silo, the material feeding time, the weight of the third coke, and the weight of the third sinter. The first calculation module is used to calculate the coke production rate corresponding to the nth coke push based on the coke push time, the weight of the first coke and the weight of the second coke. The second calculation module is used to calculate the sinter production speed based on the sintering machine's production time, the weight of the first sinter, and the weight of the second sinter. The third calculation module is used to calculate the coke consumption rate of the m-th coke feeding based on the feeding time, probe signal and third coke weight. The fourth calculation module is used to calculate the sinter consumption rate of the m-th sinter feeding based on the feeding time, probe signal and the weight of the third sinter. The early warning module is used to provide early warnings to the raw material storage subsystem based on real-time consumption data of coke in the coke silo and real-time consumption data of sinter in the sinter silo. The control module is used to perform real-time control of the raw material production subsystem based on at least two of the following data: coke production speed, coke consumption speed, and real-time coke consumption data in the coke silo; and / or, to perform real-time control of the raw material production subsystem based on at least two of the following data: sinter production speed, sinter consumption speed, and real-time sinter consumption data in the sinter silo.

11. A computer device, characterized in that, include: A memory and a processor are interconnected, the memory storing computer instructions, and the processor executing the computer instructions to perform the blast furnace raw material balance and silo level early warning method according to any one of claims 2 to 9.

12. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions for causing the computer to perform the blast furnace raw material balance and silo level early warning method according to any one of claims 2 to 9.

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