A hot blast stove baking control method and device, electronic equipment and storage medium

Abstract

The application discloses a hot blast stove baking control method and device, electronic equipment and storage medium, first, according to the original weight of the material in the hot blast stove, the moisture content and the drainage ratio at each temperature stage, the standard drainage amount of the material at each temperature stage is calculated, the standard drainage amount of the current material at each temperature stage can be accurately obtained, and data support is provided for the subsequent heating rate and / or constant temperature period adjustment; for each temperature stage, the actual drainage amount of the material at the current temperature stage is determined, and it can be accurately known that whether the material drainage at each temperature stage is completed can be accurately judged; then, according to the standard drainage amount and the actual drainage amount, the heating rate and / or the constant temperature period in the next baking process is controlled. Whether the normal planned heating can be accurately judged or whether the constant temperature time needs to be further prolonged to further drain water, the whole baking process is data-based, so that the baking process is controllable, and the baking material quality is improved.

Description

Technical Field

[0001] This invention relates to the field of hot blast stove drying control technology, and in particular to a hot blast stove drying control method, device, electronic equipment and storage medium. Background Technology

[0002] The purpose of baking a hot blast stove is to slowly expel moisture from the refractory brickwork, preventing sudden and excessive evaporation that could damage the refractory structure. Simultaneously, it allows the refractory bricks to expand evenly, slowly, and sufficiently, preventing damage caused by thermal stress concentration or crystal lattice transformation. The mortar also gradually sinters during the heating process, improving the overall integrity of the furnace. At the same time, sufficient heat gradually accumulates inside the furnace to ensure the required blast temperature for baking and start-up. Therefore, material drainage during the baking process is one of the most critical aspects of baking a hot blast stove.

[0003] In traditional processes, the standard for judging material drainage is the observation of water discharge during the oven drying process. However, it is impossible to accurately determine whether different types of water have been discharged in each heating stage. Furthermore, it is impossible to accurately determine whether the material drainage is complete. Based on this, it is also impossible to accurately determine whether the heating can proceed as planned or whether the constant temperature time needs to be extended to further drain water. The entire oven drying process is blind, and the quality control of the oven drying process is difficult to meet the design requirements. Summary of the Invention

[0004] This invention provides a hot blast stove drying control method to solve the problem that it is difficult to accurately determine whether the material drainage is complete, making it difficult to achieve the design requirements for quality control during the drying process.

[0005] In a first aspect, the present invention provides a method for controlling the baking of a hot blast stove, comprising:

[0006] Calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove.

[0007] For each temperature stage, determine the actual drainage volume of the material at the current temperature stage;

[0008] The heating rate and / or the isothermal period are controlled according to the standard drainage volume and the actual drainage volume in the next oven drying process.

[0009] In a second aspect, the present invention provides a hot blast stove oven control device, comprising:

[0010] The standard drainage calculation module is used to calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove.

[0011] The actual drainage calculation module is used to determine the actual drainage volume of the material at the current temperature stage for each temperature stage.

[0012] The oven drying plan adjustment module is used to control the heating rate and / or the constant temperature period in the next oven drying process based on the standard drainage volume and the actual drainage volume.

[0013] Thirdly, the present invention provides an electronic device, the electronic device comprising:

[0014] At least one processor; and

[0015] A memory communicatively connected to the at least one processor; wherein,

[0016] The memory stores a computer program that can be executed by the at least one processor, which enables the at least one processor to perform the hot blast stove baking control method according to the first aspect of the present invention.

[0017] Fourthly, the present invention provides a computer-readable storage medium storing computer instructions that, when executed by a processor, implement the hot blast stove baking control method described in the first aspect of the present invention.

[0018] This invention provides a hot blast stove drying control method. First, based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove at each temperature stage, the standard drainage volume of the material at each temperature stage is calculated. This accurately determines the standard drainage volume of the material at each temperature stage, providing data support for subsequent adjustments to the heating rate and / or the isothermal period. For each temperature stage, after drainage is completed, the actual drainage volume of the material at that temperature stage is determined, allowing for precise judgment of whether drainage is complete at each temperature stage. Then, based on the standard drainage volume and the actual drainage volume, the heating rate and / or the isothermal period are controlled in the next stage of the drying process. This allows for precise judgment of whether the planned heating can proceed normally or whether the isothermal period needs to be extended for further water drainage. The entire drying process is digitized, making the drying process controllable and improving the quality of the dried material.

[0019] It should be understood that the description in this section is not intended to identify key or essential features of the embodiments of the present invention, nor is it intended to limit the scope of the invention. Other features of the invention will become readily apparent from the following description. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a flowchart of a hot blast stove drying control method provided in Embodiment 1 of the present invention;

[0022] Figure 2 This is a hot air furnace heating curve provided in Embodiment 1 of the present invention;

[0023] Figure 3 This is a flowchart of a hot blast stove drying control method provided in Embodiment 2 of the present invention;

[0024] Figure 4 This is a schematic diagram of the structure of a hot blast stove drying control device provided in Embodiment 3 of the present invention;

[0025] Figure 5 This is a schematic diagram of the structure of the electronic device provided in Embodiment 4 of the present invention. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0027] Example 1

[0028] Figure 1 This is a flowchart of a hot blast stove drying control method provided in Embodiment 1 of the present invention. This embodiment is applicable to situations where the drying process in a hot blast stove is controlled. The method can be executed by a hot blast stove drying control device, which can be implemented in hardware and / or software and can be configured in an electronic device. For example... Figure 1 As shown, the hot blast stove baking control method includes:

[0029] S101. Calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove at each temperature stage.

[0030] A hot blast stove, also known as a blast furnace hot blast stove, is one of the main supporting equipment for blast furnaces in ironmaking plants. Typically, one blast furnace is equipped with 3 to 4 hot blast stoves. The function of the hot blast stove is to continuously provide the blast furnace with hot air at temperatures exceeding 1000 degrees Celsius. The hot blast stove is constructed from refractory bricks and mortar. After construction, the hot blast stove needs to be baked to remove moisture from the masonry and solidify the mortar, improving its overall integrity and making it suitable for high-temperature firing. During the baking process, the hot blast stove is offline.

[0031] The moisture content of materials in hot blast stoves mainly comes from the moisture content of refractory bricks and masonry mortar. Based on the decomposition and volatilization characteristics of physical water and crystal water, different types of water should be discharged in a timely manner at different heating stages.

[0032] The original weight and moisture content of the materials in the hot blast stove can be obtained during the construction of the hot blast stove. Specifically, this can be obtained based on the incoming material properties or after testing the material; this invention does not impose any limitations on this. It should be noted that the material composition of different hot blast stoves may differ, mainly in terms of material type, material weight, and material ratio. Therefore, the original weight and moisture content of the materials in different hot blast stoves may also vary.

[0033] The drainage ratio for each temperature stage varies because the oven temperature and heating rate differ at each stage. For example, at lower oven temperatures, the rate of moisture evaporation is slower, resulting in less drainage; conversely, at higher oven temperatures, the rate of moisture evaporation is faster, leading to more drainage. Furthermore, the total moisture content in the hot air furnace is higher in the initial drying stage, thus requiring more drainage in that phase, while the total moisture content is lower in later stages, resulting in less drainage. Therefore, the drainage ratio for each temperature stage can be set based on the oven temperature and the specific drying stage.

[0034] It should be noted that the standard drainage capacity of the material at each temperature stage is the sum of the standard drainage capacities of each type of material, that is, the standard drainage capacity of the hot blast stove at each temperature stage. Given the original weight, moisture content, and drainage rate of each type of material at each temperature stage, the standard drainage capacity of each material at each temperature stage can be calculated. For each temperature stage, the standard drainage capacities of all materials are added together to obtain the standard drainage capacity of the material at that temperature stage.

[0035] S102. For each temperature stage, determine the actual drainage volume of the material at the current temperature stage.

[0036] In the hot blast stove, the material containing water exists in the flue gas in a gaseous state. However, after natural cooling by air, it becomes liquid and is discharged. The external drainage volume can generally be measured using a fixed container method. After drainage is completed at a certain temperature stage, the actual drainage volume for that temperature stage is obtained based on the drainage volume recorded at the end of the isothermal phase. Specifically, the actual drainage volume of the material at the current temperature stage can be determined when a preset duration remains in the isothermal cycle of that temperature stage.

[0037] S103. Control the heating rate and / or the constant temperature period in the next furnace drying process according to the standard drainage volume and the actual drainage volume.

[0038] The oven drying process is generally pre-set with different temperature stages, as well as the heating rate and constant temperature cycle method for each temperature stage, in order to ensure the quality of the hot blast oven drying process. Figure 2 This is a temperature rise curve diagram for a hot blast stove, such as... Figure 2 As shown, the heating rate and / or isothermal period may differ at different temperature stages.

[0039] If the deviation between the actual drainage volume and the standard drainage volume is small, the furnace drying process can continue to the next temperature stage. If the deviation between the actual drainage volume and the standard drainage volume is large, that is, if the actual drainage volume is too small, the furnace drying may not be in place. In this case, the furnace drying process can continue to ensure the quality of the hot blast stove, instead of directly entering the furnace drying process of the next temperature stage.

[0040] Specifically, the deviation between the standard drainage volume and the actual drainage volume during the furnace drying process can be calculated to determine whether the actual drainage volume is too small. If the drainage volume is too small, the heating rate can be reduced and / or the constant temperature period can be extended to continue the furnace drying process. After the drainage volume of the furnace in the current stage meets the standard, the furnace drying process can proceed to the next temperature stage to ensure the quality of the furnace drying process.

[0041] This invention provides a hot blast stove drying control method. First, based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove at each temperature stage, the standard drainage volume of the material at each temperature stage is calculated. This accurately determines the standard drainage volume of the material at each temperature stage, providing data support for subsequent adjustments to the heating rate and / or the isothermal period. For each temperature stage, after drainage is completed, the actual drainage volume of the material at that temperature stage is determined, allowing for precise judgment of whether drainage is complete at each temperature stage. Then, based on the standard drainage volume and the actual drainage volume, the heating rate and / or the isothermal period are controlled in the next stage of the drying process. This allows for precise judgment of whether the planned heating can proceed normally or whether the isothermal period needs to be extended for further water drainage. The entire drying process is digitized, making the drying process controllable and improving the quality of the dried material.

[0042] Example 2

[0043] Figure 3 This is a flowchart of a hot blast stove drying control method provided in Embodiment 2 of the present invention. This embodiment of the present invention is an optimization based on Embodiment 1 described above, such as... Figure 3 As shown, the hot blast stove baking control method includes:

[0044] S301. Obtain environmental information during the construction of the hot blast stove. The environmental information is the environmental information that affects the moisture content of the material.

[0045] Environmental information can include atmospheric humidity.

[0046] In one optional embodiment, before acquiring environmental information during the construction of the hot blast stove, the method further includes: checking whether the waterproofing measures are properly controlled; if so, then the step of acquiring environmental information during the construction of the hot blast stove is performed. Since inadequate waterproofing measures during the hot blast stove baking process will affect the drainage volume, making it impossible to determine whether water has been completely drained at each temperature stage, it is essential to ensure that waterproofing measures are in place before baking the stove.

[0047] S302. For each material, determine the moisture content of the material based on environmental information and the reference value of the moisture content of the material under standard conditions.

[0048] It should be noted that the moisture content reference value can be a range of data.

[0049] In one optional example, environmental information includes atmospheric humidity, and the moisture content of the material is calculated using the following formula:

[0050] Y = a(AB) + C

[0051] Where Y is the moisture content of the material, A is the atmospheric humidity under the current environment, B is the atmospheric humidity under the standard environment, C is the reference value of the moisture content of the material under the standard environment, and a is an adjustment coefficient. The value of a is set according to the characteristics of the material. For example, the moisture content of refractory bricks is greatly affected by atmospheric humidity, so the value of a is set to be large; the moisture content of masonry mortar is less affected by atmospheric humidity, so the value of a is set to be small.

[0052] The moisture content of materials used in hot blast stoves mainly comes from the moisture content of refractory bricks and masonry mortar. Under standard conditions, the reference value for the moisture content of refractory bricks is calculated as 1-5%, and the reference value for the moisture content of masonry mortar is calculated as 20-45%, with the reference value for the moisture content of heavy brick mortar being 20-35% and the reference value for the moisture content of insulating brick mortar being 30-45%. Under extreme weather conditions, the moisture content of these materials will be affected by atmospheric humidity. For example, during construction when the atmospheric humidity is particularly high, the reference value for the moisture content of refractory bricks may reach 8-10%.

[0053] In addition, a range value can be preset for each material. After obtaining the reference value of the material's moisture content, the required moisture content of the material can be obtained. For example, if the range value is ±3% and the reference value of the material's moisture content is 20%, then under the current atmospheric humidity, the moisture content should be in the range of 17%-23%.

[0054] S303. Calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove at each temperature stage.

[0055] The standard drainage capacity for each type of material at the current temperature stage is equal to the product of the material's original weight, moisture content, and drainage ratio at the current temperature stage.

[0056] The standard drainage capacity of a material at the current temperature stage is equal to the sum of the standard drainage capacities of each type of material at the current temperature stage.

[0057] S304. For each temperature stage, when the preset duration of the constant temperature cycle of the temperature stage remains, read the first water volume of the metering container.

[0058] The material is drained into a metering container.

[0059] The proportion of water discharged from the material varies at different temperature stages in the hot blast stove drying process. Based on the decomposition and volatilization characteristics of physical water and crystal water, approximately 52-62% of the material water is discharged during the low-temperature and constant-temperature stages (≤200℃) of the drying process; approximately 35-25% of the material water is discharged during the low-to-medium-temperature and constant-temperature stages (200-350℃) of the drying process; approximately 8-10% of the material water will be discharged during the medium-temperature stage (350-600℃) of the drying process; and the remaining approximately 3-5% of the material water will be discharged during the high-temperature rise (≥600℃) of the drying process and will be directly discharged into the chimney with the flue gas during the production heating process.

[0060] When the hot blast stove is dried offline, the flue gas is cooled naturally through the flue gas exhaust pipe to obtain liquid water. During the drying process inside the hot blast stove, the high temperature of the flue gas causes the water in the hot blast stove material to exist in gaseous form. During the offline drying process, after leaving the hot blast stove body, the high-temperature flue gas passes through the flue gas exhaust pipe and flue gas regulating valve into the chimney. Due to the natural cooling of the high-temperature flue gas inside the steel pipe by the low-temperature natural air, the gaseous water in the flue gas condenses into liquid water and accumulates in the lower drainage section of the flue gas exhaust pipe, i.e., in the metering container. Generally, each temperature stage has a constant temperature stage. When the remaining preset time of the constant temperature cycle of a temperature stage is reached, i.e., at the end of the constant temperature stage, the material drainage of the current temperature stage is basically completed, and the drainage volume is basically stable. After the current temperature stage ends, the actual drainage volume of the material in the current temperature stage can be read. It should be noted that the remaining preset duration of the constant temperature cycle at different temperature stages can be the same or different. For example, the remaining preset duration can be one-third of the duration of the constant temperature cycle. Assuming the constant temperature cycle is 15 minutes, the drainage data can be read when there are 5 minutes left in the constant temperature cycle. The specific setting depends on the actual needs, and this invention does not impose any restrictions on it.

[0061] S305. Obtain the second water volume in the metering container at the start of the temperature phase.

[0062] The measuring container can be a graduated container, allowing the first and second water volumes to be obtained manually. Alternatively, the measuring container can be equipped with a sensor, such as a hydraulic sensor or a level sensor, which can be programmed to automatically read the first and second water volumes at different times.

[0063] S306. The difference between the first water volume and the second water volume is taken as the actual drainage volume of the material at the current temperature stage.

[0064] If the drainage volume remains unchanged within the preset time period, it indicates that drainage for the current temperature stage has been completed, and the flue gas exhaust pipe can be shut off to calculate the actual drainage volume of the material at the current temperature stage. Specifically, if a metering tank is used to measure the actual drainage volume, the additional drainage volume in the metering tank can be calculated as the actual drainage volume for the current temperature stage.

[0065] S307. Calculate the deviation between the standard drainage volume and the actual drainage volume.

[0066] Under normal circumstances, the actual drainage volume is less than or equal to the standard drainage volume. If the actual drainage volume is less than the standard drainage volume, then the deviation between the standard drainage volume and the actual drainage volume should also be small.

[0067] In another normal situation, the actual drainage volume is greater than the standard drainage volume, and the deviation between the standard drainage volume and the actual drainage volume is also small. This situation is generally rare. In this embodiment, we mainly consider the case where the actual drainage volume is less than or equal to the standard drainage volume. If the actual drainage volume is greater than the standard drainage volume, it can be regarded as the case where the drainage volume is equal to the standard drainage volume.

[0068] The formula for calculating the deviation value is as follows:

[0069] D = (W1 - W2) / W1

[0070] Where D is the deviation value, W1 is the standard drainage volume, and W2 is the actual drainage volume.

[0071] S308. Determine whether the deviation value is less than or equal to the preset reference value.

[0072] If yes, execute S309; ​​otherwise, execute S310.

[0073] S309. Determine the heating rate of the next temperature stage and / or the isothermal period according to the preset heating curve.

[0074] When the deviation value is less than or equal to the preset reference value, it indicates that the material drainage is completed normally in the current temperature stage of the oven. Then, the heating rate and / or constant temperature period of the next temperature stage can be determined according to the preset heating curve.

[0075] S310. Control the heating rate and / or the isothermal cycle in the next oven baking process based on the deviation value and the current temperature stage.

[0076] When the deviation value is greater than the preset reference value, it means that the material drainage has not been completed normally at the current temperature stage of the oven, that is, there is still material water that has not been drained at the current temperature stage of the oven. In this case, the oven needs to be dried for longer to complete the drainage at the current temperature stage.

[0077] Specifically, in one optional embodiment, if the current temperature stage is a low-temperature and constant-temperature stage, a first period extension ratio corresponding to the low-temperature and constant-temperature stage and the deviation value is determined; the constant-temperature period of the low-temperature and constant-temperature stage is extended according to the first period extension ratio. If the current temperature stage is a low-medium-temperature and constant-temperature stage, a second period extension ratio and a heating rate reduction value corresponding to the low-medium-temperature and constant-temperature stage and the deviation value are determined; the constant-temperature period of the low-medium-temperature and constant-temperature stage is extended according to the second period extension ratio; the adjusted heating rate is calculated according to the heating rate reduction value and the heating rate of the low-medium-temperature and constant-temperature stage; the adjusted heating rate is used as the heating rate during the process of extending the constant-temperature period of the low-medium-temperature and constant-temperature stage.

[0078] For example, the preset reference value is 15%.

[0079] (1) In the low temperature and constant temperature stage (≤200℃), if the deviation value is ≥15%, the constant temperature period shall be extended by 10 to 15% on the original basis; if the deviation value is ≥25%, the constant temperature period shall be extended by 20 to 30% on the original basis.

[0080] (2) During the low-to-medium temperature and constant temperature stages (200–350℃), if the deviation is ≥15%, the constant temperature period should be extended by 10–15%; if the deviation is ≥25%, the constant temperature period should be extended by 20–30%. In the subsequent heating stage of 350–700℃, the hourly heating rate should be further reduced by 10–30% based on the acceptable total heating cycle of the hot blast stove.

[0081] (3) After adjusting the heating rate and constant temperature stage in the early and middle stages of oven baking, the constant temperature period and heating rate in the constant temperature and heating stages above 700℃ can be maintained as originally planned.

[0082] This embodiment acquires environmental information during the construction of the hot blast stove, specifically information affecting the moisture content of materials. For each material, the moisture content is determined based on this environmental information and a reference value for the material's moisture content under standard conditions. This allows for a more accurate calculation of the material's moisture content, and consequently, a more precise calculation of the standard drainage volume for each temperature stage, improving the accuracy of furnace drying control. Furthermore, adjusting the furnace drying process based on the drainage volume ensures the quality of the drying process.

[0083] Example 3

[0084] Figure 4 This is a schematic diagram of a hot blast stove drying control device provided in Embodiment 3 of the present invention. Figure 4 As shown, the hot blast stove oven control device includes:

[0085] The standard drainage calculation module 401 is used to calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content and drainage ratio of the material in the hot blast stove.

[0086] The actual drainage calculation module 402 is used to determine the actual drainage volume of the material at the current temperature stage for each temperature stage.

[0087] The oven drying plan adjustment module 403 is used to control the heating rate and / or the constant temperature period in the next oven drying process based on the standard drainage volume and the actual drainage volume.

[0088] In an optional embodiment, the hot blast stove oven control device further includes:

[0089] An environmental information acquisition module is used to acquire environmental information during the construction of the hot blast stove, wherein the environmental information is environmental information that affects the moisture content of the material.

[0090] The moisture content determination module is used to determine the moisture content of each material based on the environmental information and the reference value of the moisture content of the material under standard conditions.

[0091] In an optional embodiment, the environmental information includes atmospheric humidity, and the moisture content of the material is calculated using the following formula:

[0092] Y = a(AB) + C

[0093] Where Y is the moisture content of the material, A is the atmospheric humidity under the current environment, B is the atmospheric humidity under the standard environment, C is the reference value of the moisture content of the material under the standard environment, and a is the adjustment coefficient.

[0094] In an optional embodiment, the hot blast stove oven control device further includes:

[0095] The waterproofing measures detection module checks whether the waterproofing measures are properly managed; if so, it executes the tasks performed by the environmental information acquisition module.

[0096] In an optional embodiment, material wastewater is discharged into a metering container, and the actual wastewater discharge calculation module 402 includes:

[0097] The first water volume acquisition submodule is used to read the first water volume of the metering container when the remaining preset time of the constant temperature cycle of each temperature stage is reached.

[0098] The first water volume acquisition submodule is used to acquire the second water volume of the metering container at the beginning of the temperature stage;

[0099] The actual drainage calculation submodule is used to take the difference between the first water volume and the second water volume as the actual drainage volume of the material at the current temperature stage.

[0100] In an optional embodiment, the oven drying plan adjustment module 403 includes:

[0101] The deviation calculation submodule is used to calculate the deviation between the standard drainage volume and the actual drainage volume.

[0102] The deviation value judgment submodule is used to determine whether the deviation value is less than or equal to a preset reference value; if yes, the content executed by the first execution submodule is executed; if no, the content executed by the second execution submodule is executed.

[0103] The first execution submodule is used to determine the heating rate of the next temperature stage and / or the isothermal period according to the preset heating curve.

[0104] The second execution submodule is used to control the heating rate and / or the isothermal cycle in the next oven baking process based on the deviation value and the current temperature stage.

[0105] In an optional embodiment, the second execution submodule includes:

[0106] The first parameter acquisition unit is used to determine the first time extension ratio corresponding to the low temperature and constant temperature stage and the deviation value if the current temperature stage is a low temperature and constant temperature stage.

[0107] The first extended oven unit is used to extend the constant temperature period of the low temperature and constant temperature stages according to the first time extension ratio.

[0108] The second parameter acquisition unit is used to determine the second period extension ratio and the heating rate reduction value corresponding to the low-medium temperature and constant temperature stage and the deviation value if the current temperature stage is a low-medium temperature and constant temperature stage.

[0109] The isothermal cycle extension unit is used to extend the isothermal cycle of the low-temperature and medium-temperature and isothermal stages according to the second period extension ratio.

[0110] The heating rate calculation unit is used to calculate the adjusted heating rate according to the heating rate reduction value and the heating rate in the low-temperature, medium-temperature and constant-temperature stages.

[0111] The heating rate adjustment unit is used to set the adjusted heating rate as the heating rate during the extended isothermal cycle process in the low-temperature, medium-temperature, and isothermal stages.

[0112] The hot blast stove drying control device provided in the embodiments of the present invention can execute the hot blast stove drying control method provided in any embodiment of the present invention, and has the corresponding functional modules and beneficial effects of the method.

[0113] Example 4

[0114] Figure 5 A schematic diagram of an electronic device 40 that can be used to implement embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices (e.g., helmets, glasses, watches, etc.), and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely illustrative and are not intended to limit the implementation of the invention described and / or claimed herein.

[0115] like Figure 5As shown, the electronic device 40 includes at least one processor 41 and a memory, such as a read-only memory (ROM) 42 or a random access memory (RAM) 43, communicatively connected to the at least one processor 41. The memory stores computer programs executable by the at least one processor. The processor 41 can perform various appropriate actions and processes based on the computer program stored in the ROM 42 or loaded into the RAM 43 from storage unit 48. The RAM 43 may also store various programs and data required for the operation of the electronic device 40. The processor 41, ROM 42, and RAM 43 are interconnected via a bus 44. An input / output (I / O) interface 45 is also connected to the bus 44.

[0116] Multiple components in electronic device 40 are connected to I / O interface 45, including: input unit 46, such as keyboard, mouse, etc.; output unit 47, such as various types of monitors, speakers, etc.; storage unit 48, such as disk, optical disk, etc.; and communication unit 49, such as network card, modem, wireless transceiver, etc. Communication unit 49 allows electronic device 40 to exchange information / data with other devices through computer networks such as the Internet and / or various telecommunications networks.

[0117] Processor 41 can be a variety of general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of processor 41 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various special-purpose artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any suitable processor, controller, microcontroller, etc. Processor 41 performs the various methods and processes described above, such as the hot blast stove oven drying control method.

[0118] In some embodiments, the hot blast stove baking control method may be implemented as a computer program tangibly contained in a computer-readable storage medium, such as storage unit 48. In some embodiments, part or all of the computer program may be loaded and / or installed on electronic device 40 via ROM 42 and / or communication unit 49. When the computer program is loaded into RAM 43 and executed by processor 41, one or more steps of the hot blast stove baking control method described above may be performed. Alternatively, in other embodiments, processor 41 may be configured to perform the hot blast stove baking control method by any other suitable means (e.g., by means of firmware).

[0119] Various embodiments of the systems and techniques described above herein can be implemented in digital electronic circuit systems, integrated circuit systems, field-programmable gate arrays (FPGAs), application-specific integrated circuits (ASICs), application-specific standard products (ASSPs), systems-on-a-chip (SoCs), complex programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments may include implementations in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which may be a dedicated or general-purpose programmable processor, capable of receiving data and instructions from a storage system, at least one input device, and at least one output device, and transmitting data and instructions to the storage system, the at least one input device, and the at least one output device.

[0120] Computer programs used to implement the methods of the present invention may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when executed by the processor, the computer programs cause the functions / operations specified in the flowcharts and / or block diagrams to be performed. The computer programs may be executed entirely on a machine, partially on a machine, or as a standalone software package, partially on a machine and partially on a remote machine, or entirely on a remote machine or server.

[0121] In the context of this invention, a computer-readable storage medium can be a tangible medium that may contain or store a computer program for use by or in conjunction with an instruction execution system, apparatus, or device. A computer-readable storage medium may include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination thereof. Alternatively, a computer-readable storage medium may be a machine-readable signal medium. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0122] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0123] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as data servers), or computing systems that include middleware components (e.g., application servers), or computing systems that include frontend components (e.g., user computers with graphical user interfaces or web browsers through which users can interact with implementations of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., communication networks). Examples of communication networks include local area networks (LANs), wide area networks (WANs), blockchain networks, and the Internet.

[0124] A computing system can include clients and servers. Clients and servers are generally located far apart and typically interact through communication networks. The client-server relationship is created by computer programs running on the respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or cloud host, which is a hosting product within the cloud computing service system to address the shortcomings of traditional physical hosts and VPS services, such as high management difficulty and weak business scalability.

[0125] It should be understood that the various forms of processes shown above can be used, with steps reordered, added, or deleted. For example, the steps described in this invention can be executed in parallel, sequentially, or in different orders, as long as the desired result of the technical solution of this invention can be achieved, and this is not limited herein.

[0126] The specific embodiments described above do not constitute a limitation on the scope of protection of this invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this invention should be included within the scope of protection of this invention.

Claims

1. A method for controlling the baking of a hot blast stove, characterized in that, include: Calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove. For each temperature stage, determine the actual drainage volume of the material at the current temperature stage; The heating rate and / or the isothermal period are controlled according to the standard drainage volume and the actual drainage volume in the next oven drying process. The control of the heating rate and / or the isothermal period in the next oven drying process based on the standard drainage volume and the actual drainage volume includes: Calculate the deviation between the standard drainage volume and the actual drainage volume; Determine whether the deviation value is less than or equal to a preset reference value; If so, determine the heating rate for the next temperature stage and / or the isothermal period according to the preset heating curve; If not, control the heating rate and / or the isothermal period in the next oven baking process based on the deviation value and the current temperature stage; The materials in the hot blast stove include refractory bricks and masonry mortar; The step of controlling the heating rate and / or the isothermal period in the next stage of the oven drying process based on the deviation value and the current temperature stage includes: If the current temperature stage is a low temperature and constant temperature stage, determine the first time extension ratio corresponding to the low temperature and constant temperature stage and the deviation value; The constant temperature period of the low temperature and constant temperature stages shall be extended according to the first time limit extension ratio. If the current temperature stage is a low-medium temperature and constant temperature stage, determine the second period extension ratio and the heating rate reduction value corresponding to the low-medium temperature and constant temperature stage and the deviation value; The constant temperature period for the low- and medium-temperature and constant temperature stages shall be extended according to the second extension ratio. The adjusted heating rate is calculated based on the decrease in heating rate and the heating rates during the low, medium, and constant temperature stages. The adjusted heating rate is used as the heating rate during the extended isothermal period in the low-temperature, medium-temperature, and isothermal phases.

2. The method as described in claim 1, characterized in that, Before calculating the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove, the method further includes: Obtain environmental information during the construction of the hot blast stove, wherein the environmental information is environmental information that affects the moisture content of the material; For each material, the moisture content is determined based on the environmental information and the reference value of the material's moisture content under standard conditions.

3. The method as described in claim 2, characterized in that, The environmental information includes atmospheric humidity, and the moisture content of the material is calculated using the following formula: Y = a(AB) + C Where Y is the moisture content of the material, A is the atmospheric humidity under the current environment, B is the atmospheric humidity under the standard environment, C is the reference value of the moisture content of the material under the standard environment, and a is the adjustment coefficient.

4. The method as described in claim 2, characterized in that, Before obtaining environmental information during the construction of the hot blast stove, the method further includes: Check whether the waterproofing measures are properly controlled; If so, proceed with the step of obtaining environmental information during the construction of the hot blast stove.

5. The method as described in claim 1, characterized in that, Material is drained into a metering container. For each temperature stage, the actual amount of material drained at the current temperature stage is determined, including: For each temperature stage, when the remaining preset time of the constant temperature cycle for that temperature stage is reached, the first water volume in the metering container is read. Obtain the second water volume in the metering container at the start of the temperature phase; The difference between the first water volume and the second water volume is taken as the actual drainage volume of the material at the current temperature stage.

6. A hot blast stove drying oven control device, characterized in that, The hot blast stove baking control method according to any one of claims 1-5 is used for control, wherein the hot blast stove baking control device includes: The standard drainage calculation module is used to calculate the standard drainage volume of the material at each temperature stage based on the original weight, moisture content, and drainage ratio of the material in the hot blast stove. The actual drainage calculation module is used to determine the actual drainage volume of the material at the current temperature stage after each temperature stage ends. The oven drying plan adjustment module is used to control the heating rate and / or the constant temperature period in the next oven drying process based on the standard drainage volume and the actual drainage volume. The oven drying plan adjustment module includes: a deviation value calculation submodule, used to calculate the deviation value between the standard drainage volume and the actual drainage volume; a deviation value judgment submodule, used to judge whether the deviation value is less than or equal to a preset reference value; if yes, then the content executed by the first execution submodule is executed; if no, then the content executed by the second execution submodule is executed.

7. An electronic device, characterized in that, The electronic device includes: At least one processor; and A memory communicatively connected to the at least one processor; wherein, The memory stores a computer program that can be executed by the at least one processor, the computer program being executed by the at least one processor to enable the at least one processor to perform the hot blast stove baking control method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions that, when executed by a processor, implement the hot blast stove baking control method according to any one of claims 1-5.

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