Converter bottom blowing element detection device, method, equipment and medium

Abstract

The invention discloses a converter bottom blowing element detection device, method and equipment and a medium, and belongs to the technical field of converter bottom blowing. The device comprises an obtaining module used for obtaining bottom blowing characteristics of the converter and generating bottom blowing element smooth working constraint conditions of the converter according to the bottom blowing characteristics of the converter; the pressure detection module is used for acquiring a gas path pressure detection signal of a bottom blowing element of the converter; the determination module is used for determining a bottom blowing element gas path diameter measurement value according to the bottom blowing element gas path pressure detection signal; and the judgment module is used for judging whether the converter is in a blocked state or not according to the measured value of the gas path diameter of the bottom blowing element and the bottom blowing element sequential working constraint condition, and if the measured value of the gas path diameter of the bottom blowing element does not meet the bottom blowing element sequential working constraint condition, it is determined that the converter is in the blocked state. Therefore, whether the bottom blowing element is in a blocked state or not can be detected in real time in the design operation cycle of the converter bottom blowing element, and normal work of the converter bottom blowing element is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of converter bottom blowing, and in particular to a converter bottom blowing element detection device, method, equipment and medium. Background Art

[0002] CO2 emissions from the iron and steel metallurgical industry account for more than 15% of industrial emissions. In order to reduce CO2 emissions in iron and steel metallurgy, the existing technology has implemented the technology of injecting CO2 during the converter smelting process, which has made a significant contribution to the steel industry's realization of the "dual carbon" goal. However, injecting CO2 during the converter smelting process will consume heat in the converter process. When too much CO2 is injected, the converter smelting heat will be insufficient, and an external heat source needs to be added. Bottom blowing biomass powder is an effective way to supplement heat without emitting additional CO2. However, in the process of bottom blowing biomass powder, the biomass powder easily adheres to the wall of the bottom blowing pipe, causing blockage of the bottom blowing element of the converter. Summary of the invention

[0003] In order to solve the above technical problems, the embodiments of the present application provide a converter bottom blowing element detection device, method, equipment and medium.

[0004] In a first aspect, an embodiment of the present application provides a converter bottom blowing element detection device, comprising:

[0005] An acquisition module, used for acquiring the bottom blowing characteristics of the converter, and generating the forward working constraint conditions of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter;

[0006] A pressure detection module, used for obtaining a gas path pressure detection signal of a bottom blowing element of the converter;

[0007] A determination module, used to determine a measurement value of a bottom blowing component gas path diameter according to a bottom blowing component gas path pressure detection signal;

[0008] A judgment module is used to judge whether the converter is in a blocked state according to the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element. If the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a blocked state.

[0009] In one embodiment, the device further comprises:

[0010] A converter adjustment module, used for generating a converter adjustment completion instruction after adjusting the furnace mouth direction of the converter to a vertical downward state;

[0011] A converter control module, used for generating a blockage detection instruction according to the converter adjustment completion instruction;

[0012] The acquisition module is further used to generate a start detection instruction of the pressure detection module according to the blockage detection instruction;

[0013] The pressure detection module is used to ventilate according to the start-up detection instruction, according to the standard gas flow rate and the standard gas flow rate, so as to detect and obtain the bottom blowing element gas path pressure detection signal.

[0014] In one embodiment, the device further comprises:

[0015] A converter adjustment module, used for generating a converter adjustment completion instruction after adjusting the furnace mouth direction of the converter to a vertical downward state;

[0016] A converter control module, used for generating a blockage detection instruction according to the converter adjustment completion instruction;

[0017] The acquisition module is further used to generate a start detection instruction of the pressure detection module according to the blockage detection instruction;

[0018] The pressure detection module is used to ventilate according to the start-up detection instruction, according to the standard gas flow rate and the standard gas flow rate, so as to detect and obtain the bottom blowing element gas path pressure detection signal.

[0019] A plurality of bottom blowing elements, each of which is connected in series in sequence, and the pressure detection module comprises a plurality of pressure detection probes, each of which is arranged at the bottom of a corresponding bottom blowing element;

[0020] Each of the pressure detection probes is used to detect the fluid pressure signal inside each bottom blowing element, and determine the fluid pressure signal as the bottom blowing element air path pressure detection signal.

[0021] In one embodiment, the bottom blowing element antegrade working constraint condition includes a bottom blowing antegrade working diameter threshold;

[0022] The judgment module is also used to judge whether the converter is in a blocked state based on the bottom blowing forward working diameter threshold and the measured value of the bottom blowing element gas path diameter. If the measured value of the bottom blowing element gas path diameter is greater than or equal to the bottom blowing forward working diameter threshold, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter is less than the bottom blowing forward working diameter threshold, it is determined that the converter is in a blocked state.

[0023] In one embodiment, the bottom blowing element forward working constraint condition includes a bottom blowing forward working pressure threshold;

[0024] The judgment module is also used to judge whether the converter is in a blocked state based on the bottom blowing forward working pressure threshold and the bottom blowing element gas path pressure detection signal. If the bottom blowing element gas path pressure detection signal is less than or equal to the bottom blowing forward working pressure threshold, it is determined that the converter is in a normal working state; if the bottom blowing element gas path pressure detection signal is greater than the bottom blowing forward working pressure threshold, it is determined that the converter is in a blocked state.

[0025] In one embodiment, the device further comprises:

[0026] an alarm generating module, for generating a converter blocking reminder signal when the converter is in a blocked state, and synchronizing the converter blocking reminder signal to the converter control module;

[0027] The converter control module is also used to control the converter to stop operating or control the injection rate of the bottom-blown biomass powder according to the converter blockage reminder signal.

[0028] In a second aspect, an embodiment of the present application provides a converter bottom blowing element detection method, which is applied to the converter bottom blowing element detection device provided in the first aspect, and the method comprises:

[0029] Acquire the bottom blowing characteristics of the converter, and generate the forward working constraint conditions of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter;

[0030] Acquiring a gas path pressure detection signal of a bottom blowing element of the converter;

[0031] Determine a bottom blowing component gas path diameter measurement value according to the bottom blowing component gas path pressure detection signal;

[0032] Whether the converter is in a blocked state is determined based on the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element. If the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a blocked state.

[0033] In a third aspect, an embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory is used to store a computer program, and when the computer program is run by the processor, the converter bottom blowing element detection method provided in the second aspect is executed.

[0034] In a fourth aspect, an embodiment of the present application provides a computer-readable storage medium storing a computer program, which, when running on a processor, executes the converter bottom blowing element detection method provided in the second aspect.

[0035] The above-mentioned converter bottom blowing element detection device, method, equipment and medium provided in the present application can detect in real time whether the bottom blowing element is in a blocked state within the designed operation cycle of the converter bottom blowing element, ensure that the converter bottom blowing element can work normally, and achieve the efficient, continuous and stable heat supplement effect of bottom blowing biomass powder on the molten pool, so as to achieve the goal of improving the technical indicators and economic benefits of the converter bottom blowing biomass powder process, which makes it have broad development prospects in the field of converter bottom blowing biomass powder technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection of the present application. In each of the drawings, similar components are numbered similarly.

[0037] Figure 1 A schematic structural diagram of a converter provided in an embodiment of the present application is shown;

[0038] Figure 2 Another schematic structural diagram of a converter provided in an embodiment of the present application is shown;

[0039] Figure 3 A schematic structural diagram of a converter bottom blowing element detection device provided in an embodiment of the present application is shown;

[0040] Figure 4 Another structural schematic diagram of the converter bottom blowing element detection device provided in an embodiment of the present application is shown;

[0041] Figure 5 A schematic flow chart of a converter bottom blowing element detection method provided in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0042] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0043] The components of the embodiments of the present application generally described and shown in the drawings herein may be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0044] Hereinafter, the terms "including", "having" and their cognates, which may be used in various embodiments of the present application, are intended only to indicate specific features, numbers, steps, operations, elements, components, or combinations of the foregoing items, and should not be understood as first excluding the existence of one or more other features, numbers, steps, operations, elements, components, or combinations of the foregoing items or adding the possibility of one or more features, numbers, steps, operations, elements, components, or combinations of the foregoing items.

[0045] Furthermore, the terms “first”, “second”, “third”, etc. are merely used for distinguishing descriptions and are not to be understood as indicating or implying relative importance.

[0046] Unless otherwise defined, all terms (including technical terms and scientific terms) used herein have the same meanings as those generally understood by those skilled in the art to which the various embodiments of the present application belong. The terms (such as those defined in generally used dictionaries) will be interpreted as having the same meanings as the contextual meanings in the relevant technical field and will not be interpreted as having idealized meanings or overly formal meanings unless clearly defined in the various embodiments of the present application.

[0047] Example 1

[0048] An embodiment of the present application provides a converter bottom blowing element detection device, which can detect blockage of the converter bottom blowing element.

[0049] See also Figure 1 The converter includes a bottom blowing element pipeline 1, a refractory material 2 and an oxygen lance 3, and the low blowing element includes biomass powder. The gas and biomass powder are blown into the bottom blowing element pipeline 1 by a spraying method. Figure 2 The converter also includes an annular seam gas channel 4 and a pressure detection module 5 arranged at the inlet of the bottom blowing element pipeline 1. The electronic device 6 is connected to the pressure detection probe 5. The electronic device 6 can be provided with all or part of the functional modules of the converter bottom blowing element detection device to realize blockage detection of the converter bottom blowing element.

[0050] See also Figure 3 The converter bottom blowing element detection device 300 includes an acquisition module 301, a pressure detection module 302, a determination module 303 and a judgment module 304. The acquisition module 301 is connected to the pressure detection module 302, the pressure detection module 302 is also connected to the determination module 303, and the determination module 303 is also connected to the judgment module 304.

[0051] Among them, the acquisition module 301 is used to obtain the bottom blowing characteristics of the converter, and generate the forward working constraints of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter. Among them, the bottom blowing characteristics of the converter include the tonnage of different converters and the characteristics of the bottom blowing biomass mode. It should be noted that when the bottom-blown biomass powder is not completely dry and contains a certain amount of moisture, the biomass powder is easy to adhere to the pipe wall of the bottom blowing element. The forward working constraints of the bottom blowing element include the bottom blowing forward working pressure threshold and / or the bottom blowing forward working diameter threshold. Among them, the acquisition module 301 will also be used to store the forward working constraints of the bottom blowing element.

[0052] It should be noted that the forward working constraints of the bottom blowing element also include the injection pressure and injection flow rate. The injection pressure of the bottom blowing nozzle needs to be properly adjusted to ensure that the biomass fuel can effectively enter the converter and be fully mixed with the charge. The injection pressure usually needs to be set according to the specific design and operation requirements of the furnace body. The setting of the injection flow rate must ensure that the biomass fuel is fully burned in the furnace. Too high or too low flow rates will affect the furnace temperature and molten steel quality.

[0053] The pressure detection module 302 is used to obtain the gas path pressure detection signal of the bottom blowing element of the converter. The pressure detection module 302 includes a pressure detection probe, which is built into the bottom of the bottom blowing element, and the gas path pressure detection signal of the bottom blowing element is obtained through the pressure detection probe. It should be noted that the pressure detection probe is installed at the tail end of the bottom blowing element pipeline. When the biomass powder adheres to the inner wall of the bottom blowing pipeline, the diameter of the fluid path is reduced, thereby causing the fluid pressure to increase. At this time, the pressure detection probe detects the change in fluid pressure, that is, the fluid pressure signal is detected. It should be supplemented that since the pressure detection probe is installed at the tail end of the bottom blowing element pipeline, the bottom of the bottom blowing element is far away from the metal melt pool, the thermal insulation effect of the refractory material, and the continuous circulation of room temperature gas provide a low-temperature working environment for the pressure detection probe, ensuring the safety and reliability of the operation of the pressure detection probe.

[0054] The determination module 303 is used to determine the measured value of the bottom blowing element gas path diameter according to the bottom blowing element gas path pressure detection signal. It should be noted that the gas is compressible, and the volume flow rate of the gas in the bottom blowing element tube changes with the pressure and temperature. Usually, the gas flow rate is often expressed as the volume flow rate under the standard state or free state (0°C, 0.1MPa absolute pressure) (i.e. Nm 3 / h) or mass flow rate (kg / h). If V is used to represent the gas flow rate under standard conditions, then

[0055] Formula (1)

[0056] Formula (2)

[0057] In formula (1), V represents the volume flow rate of gas under standard conditions, in Nm 3 / h, d represents the inner diameter of the bottom blowing element pipe, in mm, and w0 represents the flow rate of the gas in the pipe under standard conditions, in m / s.

[0058] It should be noted that, in actual conditions, the pressure and temperature of the gas in the tube are constantly changing. The gas pressure decreases with the transport resistance, and the gas temperature also changes due to the heat transfer between the gas in the tube and the surrounding environment. Therefore, in general, the average pressure p is taken. m and the average temperature t m to calculate.

[0059] In this embodiment, the formula (1) and the formula (2) are corrected for pressure and temperature to further obtain the actual gas flow rate formula:

[0060] Formula (3)

[0061] Formula (4)

[0062] Where V represents the volume flow rate of gas under standard conditions, in Nm 3 / h, d represents the inner diameter of the pipeline, the unit is mm, w0 represents the flow rate of the gas in the bottom blowing pipeline under standard conditions, the unit is m / s, w R Indicates the actual gas flow rate in m / s, p m Indicates the average pressure of the gas in the bottom blowing pipeline, in MPa, t m It indicates the average temperature of the gas in the pipe, in degrees Celsius. The pressure value corresponding to the gas path pressure detection signal of the bottom blowing element can be used as p m , substitute into the above formula, calculate and obtain the current inner diameter of the pipeline, and take the current inner diameter of the pipeline as the diameter value corresponding to the bottom blowing element gas path diameter detection signal.

[0063] The judgment module 304 is used to judge whether the converter is in a blocked state according to the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element. If the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a blocked state.

[0064] In another embodiment, the bottom blowing element forward working constraint condition includes a bottom blowing forward working diameter threshold; the judgment module 304 is further used to judge whether the converter is in a blocked state according to the bottom blowing forward working diameter threshold and the bottom blowing element gas path diameter measurement value, if the bottom blowing element gas path diameter measurement value is greater than or equal to the bottom blowing forward working diameter threshold, it is determined that the converter is in a normal working state; if the bottom blowing element gas path diameter measurement value is less than the bottom blowing forward working diameter threshold, it is determined that the converter is in a blocked state. The bottom blowing forward working diameter threshold can be determined according to the actual situation of the converter and empirical data.

[0065] Exemplarily, the constraints for the forward operation of the bottom blowing element include: when the diameter of the bottom blowing pipe after the biomass powder is attached is less than 60% of the diameter of the bottom blowing pipe without the biomass powder attached, the bottom blowing pipe diameter is determined to be blocked. The above formula is combined with the bottom blowing element diameter and the gas flow rate and flow rate to obtain the pressure of the bottom blowing element at different diameters, so as to determine whether it is blocked. Due to the differences in the tonnage of different converters, the gas flow rate and flow rate of the bottom blowing mode, and the diameter of the bottom blowing element pipe, the bottom blowing forward working diameter thresholds corresponding to converters of different tonnages and bottom blowing modes are different.

[0066] In this way, within the designed operation cycle of the bottom blowing element of the converter, it is possible to detect in real time whether the bottom blowing element is in a blocked state, ensure that the bottom blowing element of the converter can work normally, achieve efficient, continuous and stable heat supplement effect of bottom blowing biomass powder on the molten pool, and achieve the goal of improving the technical indicators and economic benefits of the bottom blowing biomass powder process of the converter, which makes it have broad development prospects in the field of converter bottom blowing biomass powder technology.

[0067] In one embodiment, the bottom blowing element forward working constraint condition includes a bottom blowing forward working pressure threshold; the judgment module 304 is further used to judge whether the converter is in a blocked state according to the bottom blowing forward working pressure threshold and the bottom blowing element gas path pressure detection signal, if the bottom blowing element gas path pressure detection signal is less than or equal to the bottom blowing forward working pressure threshold, it is determined that the converter is in a normal working state; if the bottom blowing element gas path pressure detection signal is greater than the bottom blowing forward working pressure threshold, it is determined that the converter is in a blocked state. The bottom blowing forward working pressure threshold can be determined according to the actual situation of the converter and empirical data.

[0068] See also Figure 4The converter bottom blowing element detection device 300 also includes a converter adjustment module 305 and a converter control module 306, and the converter control module 306 is connected to the converter adjustment module 305 and the acquisition module 301 respectively. Among them, the converter adjustment module 305 is used to generate a converter adjustment completion instruction after adjusting the furnace mouth direction of the converter to a vertical downward state. The converter control module 306 is used to generate a blockage detection instruction according to the converter adjustment completion instruction. The acquisition module 301 is also used to generate a start detection instruction for the pressure detection module according to the blockage detection instruction. The pressure detection module 302 is used to ventilate according to the standard gas flow rate and standard gas flow rate according to the start detection instruction to detect and obtain the bottom blowing element gas path pressure detection signal.

[0069] In this embodiment, the converter bottom blowing element detection device 300 also includes: a plurality of bottom blowing elements, each of the bottom blowing elements is connected in series in sequence, the pressure detection module 302 includes a plurality of pressure detection probes, each of the pressure detection probes is arranged at the bottom of a corresponding bottom blowing element; each of the pressure detection probes is used to detect the fluid pressure signal inside the bottom blowing element, and determine the fluid pressure signal as the bottom blowing element gas path pressure detection signal.

[0070] In one embodiment, the converter bottom blowing element detection device 300 further includes: an alarm generation module, which is used to generate a converter blockage reminder signal when the converter is in a blocked state, and synchronize the converter blockage reminder signal to the converter control module 306. The converter control module 306 is also used to control the converter to stop operating or control the injection rate of the bottom-blown biomass powder according to the converter blockage reminder signal.

[0071] In this embodiment, the converter bottom blowing element detection device 300 may include an initialization mode and a blockage detection mode. In the initialization mode, the acquisition module 301 generates the forward working constraint conditions of the bottom blowing element according to the tonnage and bottom blowing mode of different converters, and the forward working constraint conditions of the bottom blowing element are built in, and the forward working constraint condition generation signal is synchronized to the converter adjustment module 305 to start the blockage detection mode. In the blockage detection mode, the converter adjustment module 305 adjusts the furnace mouth direction of the converter to a vertical downward state, generates a converter adjustment completion instruction, and sends the converter adjustment completion instruction to the converter control module 306. The converter control module 306 generates a blockage detection instruction according to the converter adjustment completion instruction, and transmits the probe start instruction to the pressure detection probe according to the blockage detection instruction. After receiving the probe start instruction, the pressure detection probe ventilates with the standard gas flow and flow rate, and detects the bottom blowing element gas path pressure detection signal. The determination module 303 is also used to determine the bottom blowing element gas path diameter measurement value according to the fluid pressure signal. An analysis is performed based on the measured value of the bottom blowing element gas path diameter and the forward working constraints of the bottom blowing element. If the forward working constraints of the bottom blowing element are met, the blockage detection mode is re-entered, the status of the converter is continuously detected, and a normal operating signal of the converter is generated. If the forward working constraints of the bottom blowing element are not met, a converter blockage reminder signal is generated. The converter normal operating signal and the converter blockage reminder signal can be stored, transmitted and displayed, without any restrictions here.

[0072] For example, in the use of a 100t converter bottom blowing element, the diameter of the bottom blowing element is 11mm, a pressure detection probe is installed below the outlet of the bottom blowing element, the standard flow rate is 300m / s, and the standard flow rate is 0.06Nm 3 / min·t, through the formula The calculated normal pressure should be 1.4Mpa, and when the pressure is 3.5Mpa, it is considered blocked. The pressure detection probe is installed at the bottom of the bottom blowing element, and the initialization mode is started. According to the tonnage and bottom blowing mode of the 100t converter, the forward working constraint condition of the bottom blowing element is that the bottom blowing element gas path pressure detection signal ≤3.5Mpa or the bottom blowing element gas path diameter measurement value ≥7mm, and it is built into the acquisition module. Before the 100t converter starts smelting, the blockage detection mode is selected, and the converter adjustment module 305 adjusts the furnace mouth direction of the 100t converter to a vertical downward state, generates a converter adjustment completion instruction, and sends the converter adjustment completion instruction to the converter control module 306. The converter control module 306 generates a blockage detection instruction according to the converter adjustment completion instruction, and transmits the probe start instruction to the pressure detection probe according to the blockage detection instruction. After receiving the probe start instruction, the pressure detection probe ventilates at the standard gas flow and flow rate to detect the bottom blowing element gas path pressure detection signal. The determination module 303 is also used to determine the measured value of the bottom blowing component gas path diameter according to the bottom blowing component gas path pressure detection signal. If the bottom blowing component gas path pressure detection signal is ≤3.5Mpa, a normal operation signal of the converter is generated, and the blockage detection mode is restarted; if the bottom blowing component gas path pressure detection signal is >3.5Mpa, a converter blockage reminder signal is generated, and the converter blockage reminder signal is transmitted and displayed. If the measured value of the bottom blowing component gas path diameter is ≥7mm, a normal operation signal of the converter is generated, and the blockage detection mode is restarted; if the measured value of the bottom blowing component gas path diameter is <7mm, a converter blockage reminder signal is generated, and the converter blockage reminder signal is transmitted and displayed.

[0073] After using the device provided in this embodiment to detect converter blockage, the average oxygen supply time for 100t converter smelting was shortened by 12s, the service life of the bottom blowing element was increased by 1225 furnaces, the average oxygen utilization rate was increased by 2.1%, the final average carbon-oxygen product was reduced from 0.0030 before the implementation of the technology to below 0.0029, and the final average molten steel phosphorus content was stably controlled within 0.032% from 0.036% before the implementation of the technology.

[0074] Furthermore, during the use of a 300t converter bottom blowing element, the diameter of the bottom blowing element was 22mm, a pressure detection probe was installed below the outlet of the bottom blowing element, and the standard flow rate was set to 300m / s and the standard flow rate was 0.06Nm 3 / min·t, through the formula The calculated normal pressure should be 1Mpa, and when the pressure is 2.6Mpa, it is considered blocked. The pressure detection probe is installed at the bottom of the bottom blowing element, and the initialization mode is started. According to the tonnage and bottom blowing mode of the 300t converter, the forward working constraint condition of the bottom blowing element is that the bottom blowing element gas path pressure detection signal ≤ 2.6Mpa or the bottom blowing element gas path diameter measurement value ≥ 14mm, and it is built into the acquisition module. Before the 300t converter starts smelting, the blockage detection mode is selected, and the converter adjustment module 305 adjusts the furnace mouth direction of the 300t converter to a vertical downward state, generates a converter adjustment completion instruction, and sends the converter adjustment completion instruction to the converter control module 306. The converter control module 306 generates a blockage detection instruction according to the converter adjustment completion instruction, and transmits the probe start instruction to the pressure detection probe according to the blockage detection instruction. After receiving the probe start instruction, the pressure detection probe ventilates at the standard gas flow and flow rate to detect the bottom blowing element gas path pressure detection signal. The determination module 303 is also used to determine the measured value of the bottom blowing component gas path diameter according to the bottom blowing component gas path pressure detection signal. If the bottom blowing component gas path pressure detection signal is ≤2.6Mpa, a normal operation signal of the converter is generated, and the blockage detection mode is restarted; if the bottom blowing component gas path pressure detection signal is >2.6Mpa, a converter blockage reminder signal is generated, and the converter blockage reminder signal is transmitted and displayed. If the measured value of the bottom blowing component gas path diameter is ≥14mm, a normal operation signal of the converter is generated, and the blockage detection mode is restarted; if the measured value of the bottom blowing component gas path diameter is <14mm, a converter blockage reminder signal is generated, and the converter blockage reminder signal is transmitted and displayed.

[0075] After using the device provided in this embodiment to detect converter blockage, the average oxygen supply time for 300t converter smelting was shortened by 12s, the service life of the bottom blowing element was increased by 1197 furnaces, the average oxygen utilization rate was increased by 2.0%, the final average carbon-oxygen product was reduced from 0.0028 before the implementation of the technology to below 0.0026, and the final average molten steel phosphorus content was stably controlled within 0.033% from 0.035% before the implementation of the technology.

[0076] Example 2

[0077] In addition, an embodiment of the present application provides a method for detecting a bottom blowing element of a converter, and the method is applied to the bottom blowing element detection device of a converter provided in Example 1.

[0078] like Figure 5 As shown, the converter bottom blowing element detection method includes:

[0079] Step S501, acquiring the bottom blowing characteristics of the converter, and generating the forward working constraint conditions of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter;

[0080] Step S502, obtaining a gas path pressure detection signal of a bottom blowing element of the converter;

[0081] Step S5013, determining a bottom blowing component gas path diameter measurement value according to the bottom blowing component gas path pressure detection signal;

[0082] Step S504, judging whether the converter is in a blocked state according to the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element; if the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, determining that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, determining that the converter is in a blocked state.

[0083] In one embodiment, the method further comprises:

[0084] After the furnace mouth of the converter is adjusted to a vertical downward state, a converter adjustment completion instruction is generated;

[0085] generating a blocking detection instruction according to the converter adjustment completion instruction;

[0086] Generate a start detection instruction of the pressure detection module according to the blockage detection instruction;

[0087] According to the start detection instruction, ventilation is performed according to the standard gas flow rate and the standard gas flow rate to detect and obtain the bottom blowing element gas path pressure detection signal.

[0088] In one embodiment, the method further comprises:

[0089] After the furnace mouth of the converter is adjusted to a vertical downward state, a converter adjustment completion instruction is generated;

[0090] generating a blocking detection instruction according to the converter adjustment completion instruction;

[0091] Generate a start detection instruction of the pressure detection module according to the blockage detection instruction;

[0092] According to the start detection instruction, ventilation is performed according to the standard gas flow rate and the standard gas flow rate to detect and obtain the bottom blowing element gas path pressure detection signal.

[0093] In one embodiment, the method further comprises:

[0094] After the furnace mouth of the converter is adjusted to a vertical downward state, a converter adjustment completion instruction is generated;

[0095] generating a blocking detection instruction according to the converter adjustment completion instruction;

[0096] Generate a start detection instruction of the pressure detection module according to the blockage detection instruction;

[0097] According to the start detection instruction, ventilation is performed according to the standard gas flow rate and the standard gas flow rate to detect and obtain the bottom blowing element gas path pressure detection signal.

[0098] In one embodiment, the method further comprises:

[0099] When the converter is in a blocked state, generating a converter blocking reminder signal;

[0100] The converter is controlled to stop operating or the injection rate of the bottom-blown biomass powder is controlled according to the converter blockage reminder signal.

[0101] The converter bottom blowing element detection method provided in this embodiment is applied to the converter bottom blowing element detection device provided in Example 1, which can realize the corresponding functions and achieve the corresponding technical effects. To avoid repetition, it will not be described here.

[0102] The converter bottom blowing element detection method provided in the present embodiment can detect in real time whether the bottom blowing element is in a blocked state within the designed operation cycle of the converter bottom blowing element, thereby ensuring that the converter bottom blowing element can work normally and realizing the efficient, continuous and stable heat supplement effect of bottom blowing biomass powder on the molten pool, thereby achieving the goal of improving the technical indicators and economic benefits of the converter bottom blowing biomass powder process, which makes it have broad development prospects in the field of converter bottom blowing biomass powder technology.

[0103] Example 3

[0104] In addition, an embodiment of the present application provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the computer program runs on the processor, the converter bottom blowing element detection method provided in Example 2 is executed.

[0105] The electronic device provided in this embodiment can implement the converter bottom blowing element detection method provided in Example 2, and will not be described again here to avoid repetition.

[0106] Example 4

[0107] The present application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the converter bottom blowing element detection method provided in Example 2 is implemented.

[0108] In this embodiment, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.

[0109] The computer-readable storage medium provided in this embodiment can implement the converter bottom blowing element detection method provided in Example 2, and will not be described again here to avoid repetition.

[0110] It should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or terminal including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or terminal. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or terminal including the element.

[0111] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0112] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A converter bottom blowing element detection device, characterized in that: include: An acquisition module, used for acquiring the bottom blowing characteristics of the converter, and generating the forward working constraint conditions of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter; A pressure detection module, used for obtaining a gas path pressure detection signal of a bottom blowing element of the converter; A determination module, used to determine a measurement value of a bottom blowing component gas path diameter according to a bottom blowing component gas path pressure detection signal; A judgment module is used to judge whether the converter is in a blocked state according to the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element. If the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a blocked state.

2. The converter bottom blowing element detection device according to claim 1, characterized in that: Also includes: A converter adjustment module, used for generating a converter adjustment completion instruction after adjusting the furnace mouth direction of the converter to a vertical downward state; A converter control module, used for generating a blockage detection instruction according to the converter adjustment completion instruction; The acquisition module is further used to generate a start detection instruction of the pressure detection module according to the blockage detection instruction; The pressure detection module is used to ventilate according to the start-up detection instruction, according to the standard gas flow rate and the standard gas flow rate, so as to detect and obtain the bottom blowing element gas path pressure detection signal.

3. The converter bottom blowing element detection device according to claim 2, characterized in that: Also includes: A plurality of bottom blowing elements, each of which is connected in series in sequence, and the pressure detection module comprises a plurality of pressure detection probes, each of which is arranged at the bottom of a corresponding bottom blowing element; Each of the pressure detection probes is used to detect the fluid pressure signal inside each bottom blowing element, and determine the fluid pressure signal as the bottom blowing element air path pressure detection signal.

4. The converter bottom blowing element detection device according to claim 3, characterized in that: The bottom blowing element forward working constraint condition includes a bottom blowing forward working diameter threshold; The judgment module is also used to judge whether the converter is in a blocked state based on the bottom blowing forward working diameter threshold and the measured value of the bottom blowing element gas path diameter. If the measured value of the bottom blowing element gas path diameter is greater than or equal to the bottom blowing forward working diameter threshold, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter is less than the bottom blowing forward working diameter threshold, it is determined that the converter is in a blocked state.

5. The converter bottom blowing element detection device according to claim 3, characterized in that: The bottom blowing element forward working constraint condition includes a bottom blowing forward working pressure threshold; The judgment module is also used to judge whether the converter is in a blocked state based on the bottom blowing forward working pressure threshold and the bottom blowing element gas path pressure detection signal. If the bottom blowing element gas path pressure detection signal is less than or equal to the bottom blowing forward working pressure threshold, it is determined that the converter is in a normal working state; if the bottom blowing element gas path pressure detection signal is greater than the bottom blowing forward working pressure threshold, it is determined that the converter is in a blocked state.

6. The converter bottom blowing element detection device according to claim 2, characterized in that: Also includes: an alarm generating module, for generating a converter blocking reminder signal when the converter is in a blocked state, and synchronizing the converter blocking reminder signal to the converter control module; The converter control module is also used to control the converter to stop operating or control the injection rate of the bottom-blown biomass powder according to the converter blockage reminder signal.

7. A method for detecting a bottom blowing element of a converter, characterized in that: Applied to the converter bottom blowing element detection device according to any one of claims 1 to 6, the method comprising: Acquire the bottom blowing characteristics of the converter, and generate the forward working constraint conditions of the bottom blowing element of the converter according to the bottom blowing characteristics of the converter; Acquiring a gas path pressure detection signal of a bottom blowing element of the converter; Determine a bottom blowing component gas path diameter measurement value according to the bottom blowing component gas path pressure detection signal; Whether the converter is in a blocked state is determined based on the measured value of the bottom blowing element gas path diameter and the forward working constraint condition of the bottom blowing element. If the measured value of the bottom blowing element gas path diameter meets the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a normal working state; if the measured value of the bottom blowing element gas path diameter does not meet the forward working constraint condition of the bottom blowing element, it is determined that the converter is in a blocked state.

8. The converter bottom blowing element detection method according to claim 7, characterized in that: Also includes: After the furnace mouth of the converter is adjusted to a vertical downward state, a converter adjustment completion instruction is generated; generating a blocking detection instruction according to the converter adjustment completion instruction; Generate a start detection instruction of the pressure detection module according to the blockage detection instruction; According to the start detection instruction, ventilation is performed according to the standard gas flow rate and the standard gas flow rate to detect and obtain the bottom blowing element gas path pressure detection signal.

9. An electronic device, characterized in that: The invention comprises a memory and a processor, wherein the memory stores a computer program, and the computer program executes the converter bottom blowing element detection method according to claim 7 or 8 when the processor is running.

10. A computer-readable storage medium, characterized in that: It stores a computer program, which executes the converter bottom blowing element detection method according to claim 7 or 8 when running on a processor.

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