CN109266808B - Comprehensive sensing method for converter - Google Patents
Comprehensive sensing method for converter Download PDFInfo
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- CN109266808B CN109266808B CN201811230046.7A CN201811230046A CN109266808B CN 109266808 B CN109266808 B CN 109266808B CN 201811230046 A CN201811230046 A CN 201811230046A CN 109266808 B CN109266808 B CN 109266808B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/42—Constructional features of converters
- C21C5/46—Details or accessories
- C21C5/4673—Measuring and sampling devices
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Abstract
The invention provides a comprehensive perception method of a converter.A nitrogen seal assembly of the converter is provided with at least one online non-contact detection device for detecting the condition in the converter, and in the whole metallurgical process from the charging of molten iron into the converter to the smelting end point, the information in a converter molten pool is obtained in real time through each detection device, so that the smelting process is reflected visually. According to the invention, the detection device is arranged on the nitrogen sealing assembly to obtain the information in the converter, and the nitrogen sealing assembly has a certain distance from the liquid level in the converter, so that the temperature is not too high, and the safety of the detection device is ensured; on the other hand, the position of the detection device is right above the liquid level in the furnace, so that the information is more accurately acquired, and the accuracy of the detection result is ensured.
Description
Technical Field
The invention belongs to the field of converter steelmaking, and particularly relates to a comprehensive sensing method of a converter.
Background
The oxygen top-blown converter is a main steelmaking device at present due to the characteristics of high production efficiency and low cost. The top blowing steel making process of the oxygen lance needs slag making, harmful elements are removed through the reaction of a slag making agent and molten steel, and qualified molten steel is refined, so that the state of slag and the control of the oxygen lance are core technologies of steel making operation. However, the furnace condition changes rapidly in the smelting process, abnormal states such as splashing and drying returning are often difficult to control, the existing automatic detection technology is difficult to detect various process parameters, and judgment and adjustment are carried out through visual inspection and hearing by depending on the experience of a steelmaking worker for a long time. As the personal experience and mental state of operators are different, the control capability of splashing and drying back is also different, the phenomena of splashing and drying back of the converter occur frequently, and the steel production is seriously influenced. The intelligent equipment is adopted to quickly and accurately measure the temperature of the molten steel continuously, know the state of the slag in time and control the blowing process of the molten steel, and has important significance for improving the yield and the quality of steel products and reducing the production cost.
In order to replace the judgment and adjustment of the smelting process of the converter by visual inspection and aural listening of a steel maker, people want to make various methods. However, due to special working conditions and use environments of the converter, various scattered detection methods and installation positions cannot reflect the metallurgical process of the converter in an all-round and full flow manner, and manual judgment cannot be completely replaced up to now.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, it is an object of the present invention to provide a comprehensive sensing method for a converter, so as to accurately monitor the conditions inside the converter.
In order to achieve the above objects and other related objects, the present invention provides a comprehensive sensing method for a converter, wherein at least one online non-contact detection device for detecting the conditions inside the converter is arranged on a nitrogen seal assembly of the converter, and information in a molten bath of the converter is obtained in real time by each detection device during the whole metallurgical process from the charging of molten iron into the converter to the smelting end point, so as to visually reflect the smelting process.
By adopting the method, the detection device is arranged on the nitrogen sealing component to obtain the information in the converter, and the nitrogen sealing component has a certain distance from the liquid level in the converter, so that the temperature is not too high, and the safety of the detection device is ensured; on the other hand, the position of the detection device is right above the liquid level in the furnace, so that the information is more accurately acquired, and the accuracy of the detection result is ensured.
The real-time online reflection of the smelting process of the converter can provide the most basic information support for the converter steelmaking, thereby laying a foundation for accurately judging the smelting end point. The problem of the aeipathia of the traditional 'blind smelting' of the steel making is thoroughly solved, and the whole converter metallurgical process is transparent.
Further, the information in the converter molten pool comprises one or two or more of metal liquid level height, slag level position, molten metal temperature, slag molten temperature, molten steel component and slag component.
Furthermore, a water cooling flue is arranged at the converter mouth, an oxygen lance inserting barrel sleeve is arranged on the moving section of the water cooling flue, the oxygen lance extends into the converter after passing through the oxygen lance inserting barrel sleeve, the oxygen lance inserting barrel sleeve is connected with an upper header, and the nitrogen sealing assembly is arranged on the upper header.
Furthermore, the nitrogen seal assembly comprises a nitrogen seal seat which is hermetically arranged on the upper header and a nitrogen seal plug which is arranged on the nitrogen seal seat, the nitrogen seal plug is sleeved outside the oxygen lance rod, and the detection device is arranged on the nitrogen seal seat or the nitrogen seal plug.
Furthermore, a mounting hole is formed in the nitrogen sealing seat or the nitrogen sealing plug, and the detection end of the detection device is arranged in the mounting hole and faces the liquid level of the molten steel in the converter.
Further, the detection devices are one, two or more, and are arranged along the circumferential direction of the nitrogen seal seat or the nitrogen seal plug.
Furthermore, spray holes for spraying nitrogen are arranged on the nitrogen sealing seat along the circumferential direction, when the oxygen lance is inserted, nitrogen is output to a movable nitrogen sealing plug of the oxygen lance through a pipe seam and is sprayed into a lance inserting sleeve of the oxygen lance through a gap between the nitrogen sealing plug and the oxygen lance, and after the oxygen lance is pulled out, nitrogen is sprayed into the lance inserting sleeve of the oxygen lance through the spray holes to form an air curtain to block upward converter smoke; the nitrogen flow and the pressure are increased when the oxygen lance blows oxygen, and the nitrogen flow is reduced after the oxygen lance stops blowing.
Further, the detection device is one, two or more of a liquid level detection device, a temperature detection device, a camera device, a noise acquisition device and a component analysis device; the liquid level detection device is used for acquiring the initial molten iron liquid level and the terminal molten iron liquid level in the smelting process of the converter; the temperature detection device is used for acquiring the initial molten iron temperature, the terminal molten steel temperature, the slag temperature and the hearth temperature in the converter smelting process; the camera device is used for acquiring the conditions of slag drying, splashing and foaming; the noise collecting device is used for detecting and processing the noise in the converter slagging process and monitoring the change condition of the slag.
Further, the temperature detection device adopts a double-colorimetric infrared temperature sensor, an optical fiber spectrum analysis device or an infrared imaging analysis device; the liquid level detection device adopts a radar microwave liquid level meter or a laser range finder; the camera device adopts a white light camera or an infrared camera; the noise collection device adopts a sonar slagging analysis device.
Further, the component analysis device comprises a solid-liquid analysis device and a gas analysis device, wherein the solid-liquid analysis device is used for detecting slag and liquid components in the converter metallurgy process, and the gas analysis device is used for detecting and analyzing furnace gas, and the solid-liquid analysis device adopts a laser-induced breakdown spectroscopy analysis device or an optical fiber spectroscopy analysis device; the gas analysis device employs a mass spectrometer.
The invention has the beneficial effects that:
the invention can detect the temperature conditions in the converter metallurgy process and the metallurgy clearance hearth in real time; the liquid level of the molten steel and the height of the slag surface in the metallurgical process of the converter can be detected in real time, and the condition of the furnace bottom in the hearth can be observed in the metallurgical clearance period; the method can detect the components of the molten steel and the molten slag in the metallurgical process of the converter in real time.
Manual temperature measurement is not needed by turning down the furnace, so that the smelting period is shortened, and the labor intensity of operators is reduced; compared with sublance temperature measurement, the temperature measurement can be carried out infinitely, and a temperature measurement probe is not consumed. The real-time online reflection of the smelting process of the converter can provide the most basic information support for the converter steelmaking, thereby laying a foundation for accurately judging the smelting end point. The problem of the aeipathia of the traditional 'blind smelting' of the steel making is thoroughly solved, and the whole converter metallurgical process is transparent.
The comprehensive sensing is carried out through each independent detection device, the information such as the height of the metal liquid level and the position of the slag level of the converter molten pool, the temperature of the molten metal, the temperature of the molten slag, the components of the molten steel, the components of the slag and the like is obtained in real time in the whole metallurgical process from the molten iron loading to the smelting end point, the smelting process is reflected visually, and the intelligent smelting of the converter through closed-loop control is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of one embodiment of the present invention;
FIG. 2 is an enlarged view of the mounting structure of the detecting unit of FIG. 1;
FIG. 3 is a top view of FIG. 2;
fig. 4 is a schematic structural diagram of another embodiment of the present invention.
Description of reference numerals
1-converter
2-oxygen lance
3-Water-cooled flue
4-oxygen lance barrel sleeve
5-nitrogen seal assembly
51-nitrogen seal seat
52-nitrogen sealing plug
53-nozzle
54-tube seam
6-upper header
7-detection device
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the terms "upper", "lower", "left", "right", "middle" and "one" used herein are for clarity of description only, and are not intended to limit the scope of the invention, and that changes or modifications in the relative relationship may be made without substantial technical changes and modifications.
Referring to fig. 1 and 2, the invention provides a comprehensive sensing method of a converter, wherein at least one online non-contact detection device for detecting the condition in the converter is arranged on a nitrogen seal assembly of the converter, and information in a converter molten pool is obtained in real time through each detection device in the whole metallurgical process from the charging of molten iron into the converter to a smelting end point, so that the smelting process is reflected intuitively. The online non-contact type representation can be used for online real-time detection and is not in contact with an object to be detected.
The detection device 7 is arranged on the nitrogen sealing component 5 to obtain information in the converter 1, and the nitrogen sealing component 5 has a certain distance from the liquid level in the converter 1, so that the temperature is not too high, and the safety of the detection device 7 is ensured; on the other hand, the position of the detection device 7 is right above the liquid level in the furnace, so that the information acquisition is more accurate, and the accuracy of the detection result is ensured.
Therefore, the smelting process of the converter 1 can be reflected on line in real time, and the most basic information support is provided for the steelmaking of the converter 1, so that the foundation is laid for accurately judging the smelting end point. Thoroughly solves the aeipathia of the traditional 'blind smelting' of the steel making and leads the metallurgical process of the whole converter 1 to be transparent.
Specifically, the information in the converter molten pool comprises one or more than two of the following information: the metal liquid level height, the slag level position, the molten metal temperature, the slag molten temperature, the molten steel component and the slag component.
In one embodiment, a water cooling flue 3 is arranged at the furnace mouth of the converter 1, and an oxygen lance barrel sleeve 4 is arranged on the water cooling flue 3; specifically, the water-cooling flue 3 comprises a fixed section fixed with the furnace mouth of the converter 1 and a movable section connected with the fixed section, and the oxygen lance barrel sleeve 4 is arranged on the movable section; the oxygen lance 2 penetrates through the oxygen lance insertion barrel sleeve 4 and then extends into the converter 1, the upper end of the oxygen lance insertion barrel sleeve 4 is connected with an upper header 6, the nitrogen sealing component 5 is arranged on the upper header 6, the nitrogen sealing component 5 is sleeved outside a lance rod of the oxygen lance 2, and the oxygen lance 2 and the nitrogen sealing component 5 can move relatively along the axial direction of the oxygen lance.
Wherein the nitrogen seal assembly 5 comprises a nitrogen seal seat 51 which is hermetically arranged on the upper header 6 and a nitrogen seal plug 52 which is arranged on the nitrogen seal seat 51, and the nitrogen seal plug 52 is movably sleeved outside a lance rod of the oxygen lance 2; lance 2 passes through nitrogen plug 52 and is capable of moving axially relative to nitrogen plug 52.
In one embodiment, the detection device 7 is disposed on the nitrogen seal holder 51.
In one embodiment, the detection device 7 is disposed on the nitrogen seal 52.
As shown in fig. 2 and 3, in one embodiment, the nitrogen sealing plug 52 has a mounting hole, and the detection end of the detection device 7 is disposed in the mounting hole (i.e., the information acquisition end of the detection device 7 is mounted on the nitrogen sealing plug 52 and connected to the host device through a cable), and faces the molten steel level in the converter 1. For the convenience of arrangement, a plurality of mounting holes are arranged on the nitrogen seal seat 51 along the circumferential direction thereof, and the detection devices 7 are one type, two types or more types, and the detection devices 7 are arranged along the circumferential direction of the nitrogen seal plug 52 and correspond to the positions of the mounting holes. The detection device 7 is sealed with the mounting hole, such as a high temperature resistant rubber ring, a high temperature resistant rubber cushion, an asbestos cushion and the like.
In one embodiment, the detection device 7 is one, two or more of a liquid level detection device, a temperature detection device, a camera device, a noise collection device and a component analysis device. The detection device with the corresponding function can be selected according to the requirement.
The liquid level detection device is used for acquiring the initial molten iron liquid level and the terminal molten iron liquid level in the converter smelting process; the liquid level detection device adopts a radar microwave liquid level meter or a laser range finder;
the temperature detection device is used for obtaining the initial molten iron temperature, the terminal molten steel temperature, the slag temperature and the hearth temperature in the smelting process of the converter, and can adopt a double-colorimetric infrared temperature sensor, an optical fiber spectrum analysis device (namely an optical fiber spectrum analyzer) or an infrared imaging analysis device.
The camera device is used for acquiring images or video information of slag drying, splashing, foam slag making and the like in the converter smelting process, so that the internal condition can be sensed. The camera device can adopt a white light camera or an infrared camera.
The noise acquisition device is used for detecting and processing the noise in the slagging process of the converter and monitoring the change condition of the slag; a sonar slagging analysis device can be adopted.
The component analysis device comprises a solid-liquid analysis device and a gas analysis device, wherein the solid-liquid analysis device is used for detecting and processing the slag and liquid components in the converter metallurgical process and monitoring the change condition of the slag and liquid components, and the solid-liquid analysis device can adopt a laser-induced breakdown spectroscopy analysis device or an optical fiber spectroscopy analysis device.
The gas analysis device is used for detecting and analyzing furnace gas, acquiring the conditions of slag drying, splashing and foaming slag formation in the smelting process of the converter, and further judging the smelting process and molten steel components; the gas analysis device may employ a mass spectrometer.
In one embodiment, the nitrogen sealing seat 51 has an annular cavity structure for introducing nitrogen, the nitrogen sealing seat 51 is in conical surface fit with the nitrogen sealing plug 52, spray holes 53 (or nozzles) for spraying nitrogen are circumferentially arranged on the inner wall of the nitrogen sealing seat 51, the spray holes 53 are communicated with the annular cavity, the spray holes are arranged in one layer or multiple layers along the axial direction, the spray holes are arranged towards the requirement, when the oxygen lance 2 is inserted, nitrogen is output to the movable nitrogen sealing plug 52 of the oxygen lance 2 through a pipe seam 54, and is sprayed into an oxygen lance inserting pipe sleeve through a gap between the nitrogen sealing plug and the oxygen lance, namely, openings are correspondingly arranged on the matching conical surfaces of the nitrogen sealing seat 51 and the nitrogen sealing plug 52, nitrogen in the cavity of the nitrogen sealing plug 52 is input through the openings, and nitrogen is sprayed into the gap between the nitrogen sealing plug 52 and the oxygen lance through the gap on the inner wall of the nitrogen sealing plug 52; after the oxygen lance 2 is pulled out, nitrogen is sprayed into the barrel sleeve of the oxygen lance 2 through the spray hole 53 to form an air curtain to block upward converter flue gas. The nitrogen flow and pressure are increased when oxygen lance 2 blows oxygen, and the nitrogen flow is reduced after oxygen lance 2 stops blowing.
As shown in fig. 4, in one embodiment, the detection device 7 is disposed on the nitrogen seal seat 51 and arranged along the circumferential direction of the nitrogen seal seat 51.
For convenience of installation and sealing, the detection device 7 is located below the annular cavity of the nitrogen seal seat 51, the annular cavity portion of the nitrogen seal seat 51 is correspondingly matched with the nitrogen seal plug 52, and the nitrogen seal seat 51 below the annular cavity provides a space for installation of the detection device 7.
The invention has the beneficial effects that:
the invention can detect the temperature conditions in the converter metallurgy process and the metallurgy clearance hearth in real time; the liquid level of the molten steel and the height of the slag surface in the metallurgical process of the converter can be detected in real time, and the condition of the furnace bottom in the hearth can be observed in the metallurgical clearance period; the method can detect the components of the molten steel and the molten slag in the metallurgical process of the converter in real time.
The real-time online reflection of the smelting process of the converter can provide the most basic information support for the converter steelmaking, thereby laying a foundation for accurately judging the smelting end point. The problem of the aeipathia of the traditional 'blind smelting' of the steel making is thoroughly solved, and the whole converter metallurgical process is transparent.
The comprehensive sensing is carried out through each independent detection device, the information such as the height of the metal liquid level and the position of the slag level of the converter molten pool, the temperature of the molten metal, the temperature of the molten slag, the components of the molten steel, the components of the slag and the like is obtained in real time in the whole metallurgical process from the molten iron loading to the smelting end point, the smelting process is reflected visually, and the closed-loop control intelligent smelting of the converter is realized.
The specific application is as follows:
1. the 120t converter of a certain steel mill often generates splashing and re-drying, and various metallurgical process methods are adopted to improve the smelting working condition, but the splashing phenomenon cannot be eradicated. The structure of the invention is applied to the 120t converter, the detection devices are a radar microwave level gauge and a laser range finder, the radar microwave level gauge and the laser range finder are arranged on the nitrogen sealing plug at an interval of 120 degrees, the liquid level height of the molten iron bath of the converter is respectively measured, the liquid level height of the molten iron bath of each smelting is comprehensively determined, the liquid level elevation of the basic molten iron bath controlled by the oxygen lance is further corrected, and the accurate control of the lance position of the oxygen lance of the converter is ensured. Meanwhile, the variation trend of the converter condition is mastered in real time by acquiring the liquid level height of the converter molten pool corresponding to different molten iron weights in each furnace, and accurate quantitative indexes are provided for converter maintenance. A double-colorimetric infrared thermometer and an infrared camera video system are arranged at the positions symmetrical to a radar microwave liquid level meter and a laser range finder, the furnace conditions such as initial molten iron temperature, terminal molten steel temperature, slag temperature, hearth temperature, slag drying, splashing, foaming slag forming and the like in the smelting process of the converter are accurately sensed, extracted information is input into a metallurgy control model, the lifting of an oxygen lance and oxygen blowing flow are controlled, the adding time of steel materials and auxiliary materials is controlled, the splashing and drying conditions are inhibited, and the converter is enabled to economically and efficiently produce qualified molten steel.
2. The splashing rate of 210t converters in a certain steel mill is high and reaches 34 percent once. This results in a waste of iron and steel material and a significant increase in smelting costs, as well as a decrease in the converter end point temperature and the phosphorus hit rate, and an increase in the point-blow ratio (the point-blow ratio reaches 30% at a time). By adopting the invention, cameras of video systems such as infrared cameras are arranged around the oxygen lance insertion opening on the nitrogen seal seat on the upper header of the oxygen lance insertion opening of the converter, and the infrared video monitoring is carried out on the state of the slag in the converter smelting process. The infrared video information is accessed into the information analysis server, the conditions of the height of the slag, the temperature of a hearth and the like are accurately sensed by means of image processing and the like, the information extracted by the comprehensive sensing device is used for controlling the lifting of the oxygen lance and the oxygen blowing flow, the adding time of the steel material and the auxiliary material is controlled, the occurrence of splashing and drying returning conditions is well inhibited, and the converter is ensured to economically and efficiently produce qualified molten steel. The induction distance of the infrared camera is more than 20m, the measurement precision is more than 0.5 percent, and the damage of the oxygen lance adhering slag to the infrared camera is prevented by adopting air cooling and water cooling comprehensive protection. Meanwhile, the laser distance measuring instrument is arranged on the nitrogen seal seat, the liquid level height of molten iron entering the converter is accurately measured, the lance position height of the oxygen lance, the oxygen blowing flow and the oxygen supply pressure are effectively controlled, the stability of the converter smelting process is ensured, and the metal yield of converter smelting is improved. The accurate measurement of the liquid level height of the molten iron in the converter can also effectively reflect the erosion degree of the refractory material of the converter lining, thereby providing effective support information for mastering the converter condition and maintaining the converter lining.
3. The 120t converters in a certain plant adopt the arrangement structure of the invention, and the smelting process of the converters is controlled by taking the qualified molten steel components and temperature at the smelting end point as targets. A double-colorimetric infrared temperature sensor, an optical fiber spectrum and a mass spectrometer are arranged on a nitrogen seal seat for analysis, the double-colorimetric infrared temperature sensor is used for analyzing and sensing the temperature of molten steel in the smelting process of the converter in real time, and the optical fiber spectrum analysis and the mass spectrometer are used for detecting and analyzing furnace gas and sensing key molten steel component changes of C, Si, Mn, P, S and the like of a converter molten pool in real time. The temperature and the components of a molten pool in the converter are fed back in real time, so that a control basis is provided for accurately hitting a control target in the converter smelting, the one-time hit rate of the converter is further improved, the smelting period of the converter is shortened, and the oxygen consumption is reduced. Meanwhile, the control method for directly reflecting the real-time temperature and components in the converter through instrument detection improves the control mode of converter smelting from empirical operation to a standard automatic control mode, and effectively improves the automatic control level of the converter.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (9)
1. A comprehensive sensing method of a converter is characterized in that: arranging at least one online non-contact detection device for detecting the condition in the converter on a nitrogen seal assembly of the converter, and acquiring information in a converter molten pool in real time through each detection device in the whole metallurgical process from the charging of molten iron into the converter to a smelting end point to visually reflect the smelting process; the converter mouth is provided with a water cooling flue, an oxygen lance barrel inserting sleeve is arranged on the moving section of the water cooling flue, the oxygen lance extends into the converter after passing through the oxygen lance barrel inserting sleeve, the oxygen lance barrel inserting sleeve is connected with an upper header, and the nitrogen sealing component is arranged on the upper header; the nitrogen seal assembly comprises a nitrogen seal seat which is hermetically mounted on the upper header and a nitrogen seal plug which is arranged on the nitrogen seal seat, a plurality of mounting holes for mounting a detection device are formed in the nitrogen seal seat or the nitrogen seal plug along the circumferential direction, and the detection device is arranged along the circumferential direction of the nitrogen seal seat or the nitrogen seal plug.
2. The integrated sensing method of the converter according to claim 1, wherein: the information in the converter molten pool comprises one or two or more of metal liquid level height, slag level position, molten metal temperature, slag molten temperature, molten steel components and slag components.
3. The integrated sensing method of the converter according to claim 1, wherein: the nitrogen sealing piston is sleeved outside the oxygen lance rod, and the detection device is arranged on the nitrogen sealing seat or the nitrogen sealing plug.
4. The integrated sensing method of the converter according to claim 3, wherein: and the nitrogen seal seat or the nitrogen seal plug is provided with a mounting hole, and the detection end of the detection device is arranged in the mounting hole and faces the liquid level of the molten steel in the converter.
5. The integrated sensing method of the converter according to claim 3, wherein: the detection devices are one, two or more, and are arranged along the circumferential direction of the nitrogen seal seat or the nitrogen seal plug.
6. The integrated sensing method of the converter according to claim 3, wherein: the nitrogen sealing seat is circumferentially provided with spray holes for spraying nitrogen, when the oxygen lance is inserted, nitrogen is output to a movable nitrogen sealing plug of the oxygen lance through a pipe seam and is sprayed into a lance inserting sleeve of the oxygen lance through a gap between the nitrogen sealing plug and the oxygen lance, and after the oxygen lance is pulled out, the nitrogen is sprayed into the lance inserting sleeve of the oxygen lance through the spray holes to form an air curtain to block upward converter flue gas; the nitrogen flow and the pressure are increased when the oxygen lance blows oxygen, and the nitrogen flow is reduced after the oxygen lance stops blowing.
7. The integrated sensing method of the converter according to claim 1 or 2, characterized in that: the detection device is one, two or more of a liquid level detection device, a temperature detection device, a camera device, a noise acquisition device and a component analysis device; the liquid level detection device is used for acquiring the initial molten iron liquid level and the terminal molten iron liquid level in the smelting process of the converter; the temperature detection device is used for acquiring the initial molten iron temperature, the terminal molten steel temperature, the slag temperature and the hearth temperature in the converter smelting process; the camera device is used for acquiring the conditions of slag drying, splashing and foaming; the noise collecting device is used for detecting and processing the noise in the converter slagging process and monitoring the change condition of the slag.
8. The integrated sensing method of the converter according to claim 7, wherein: the temperature detection device adopts a double colorimetric infrared temperature sensor, an optical fiber spectrum analysis device or an infrared imaging analysis device; the liquid level detection device adopts a radar microwave liquid level meter or a laser range finder; the camera device adopts a white light camera or an infrared camera; the noise collection device adopts a sonar slagging analysis device.
9. The integrated sensing method of the converter according to claim 7, wherein: the component analysis device comprises a solid-liquid analysis device and a gas analysis device, wherein the solid-liquid analysis device is used for detecting slag and liquid components in the converter metallurgy process, the gas analysis device is used for detecting and analyzing furnace gas, and the solid-liquid analysis device adopts a laser-induced breakdown spectrum analysis device or an optical fiber spectrum analysis device; the gas analysis device employs a mass spectrometer.
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| CN201811230046.7A CN109266808B (en) | 2018-10-22 | 2018-10-22 | Comprehensive sensing method for converter |
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| CN201811230046.7A CN109266808B (en) | 2018-10-22 | 2018-10-22 | Comprehensive sensing method for converter |
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| CN110146335B (en) * | 2019-06-10 | 2021-09-14 | 中冶赛迪工程技术股份有限公司 | Automatic temperature measurement sampling method for steelmaking converter door |
| CN111349741A (en) * | 2019-09-09 | 2020-06-30 | 湖北理工学院 | Method for forecasting splashing in converter steelmaking and detecting molten steel temperature and carbon content |
| CN111088414A (en) * | 2019-12-17 | 2020-05-01 | 湖北理工学院 | Oxygen lance with online continuous temperature measurement function and use method thereof |
| CN112646947A (en) * | 2020-11-05 | 2021-04-13 | 武汉华枫传感技术股份有限公司 | System and method for monitoring steelmaking state in converter |
| CN113755666A (en) * | 2021-09-21 | 2021-12-07 | 赵锋 | Device and method for monitoring erosion state of converter lining in real time on line |
| CN114807514A (en) * | 2022-04-11 | 2022-07-29 | 唐山钢铁集团有限责任公司 | Real-time monitoring and automatic control method for LF bottom blowing effect |
| CN115900378B (en) * | 2022-11-15 | 2023-08-25 | 北京科技大学 | Real-time monitoring system and method for smelting state and molten steel temperature in RH refining furnace |
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| CN103695594A (en) * | 2012-09-27 | 2014-04-02 | 余健 | Converter condition monitoring system |
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