CN103695594A - Converter condition monitoring system - Google Patents
Converter condition monitoring system Download PDFInfo
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- CN103695594A CN103695594A CN201210369780.8A CN201210369780A CN103695594A CN 103695594 A CN103695594 A CN 103695594A CN 201210369780 A CN201210369780 A CN 201210369780A CN 103695594 A CN103695594 A CN 103695594A
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Abstract
A converter monitoring system comprises a laser range finding device and a controlling device, a position of a flue just facing the mouth of a converter is provided with an irradiation aperture, the laser range finding device is arranged over the irradiation aperture, the monitoring end of the laser range finding device just faces the irradiation aperture of the flue, the controlling device is electrically connected with the laser range finding device, the controlling device determines that whether the laser range finding device is started or not according to a received tapping signal or steel making signal or empty converter signal, the laser range finding device transmits monitored data to the controlling device if the laser range finding device is started, and the slag thickness, or the height of the liquid level in the converter, or the converter bottom thickness is calculated by the controlling device according to the data transmitted by the laser range finding device. The system can monitor the converter bottom thickness of each converter steel and the height of the liquid level in each converter, and can also monitor the thickness of the slag in the converter.
Description
Technical field
The invention belongs to the monitoring equipment in Metal smelting field, relate in particular to a kind of converter working of a furnace Monitoring systems.
Background technology
The method of converter steelmaking is to rely on oxidizing reaction to slough the elements such as carbon in molten iron, silicon, phosphorus, sulphur.Convertor steelmaking process is complicated high-temperature reaction process, and in stove, temperature remains at about 1200-1750 degree Celsius, and the flue gas that wherein chemical reaction produces, enters flue from the fire door of top.
As shown in Figure 1, converter 11 comprises furnace crown 111, shaft 112 and furnace bottom, and shaft 112 inside have furnace lining 113, and furnace crown 111 has tap hole 114 with shaft.As shown in Figure 2, during converter steelmaking, by batching requirement, pack into the converter 11 such as steel scrap and be blended into molten iron, add appropriate slag making materials (as unslaked lime etc.); After reinforced, control oxygen lance 12 and to molten iron 14, be blown into oxygen 13 in fire door inserts stove, the molten iron generation oxidizing reaction of oxygen 13 and high temperature, removes most carbon, silicon, phosphorus, sulphur etc. in molten iron, and molten iron level top generates slag 15; When molten steel composition, temperature meet the demands simultaneously, stop blowing, promote oxygen lance 12, tapping; Tilting furnace during tapping, molten steel injects in ladle from tap hole 114, adds reductor deoxidation simultaneously, enters next road program minute after be adjusted to.The flue gas producing during steel-making enters flue from petticoat pipe 16, enters flue gas processing device and purifies recovery.
Converter steelmaking is a complicated heterogeneous high-temperature reaction process, for ensuring safety, improve steel-making efficiency and quality, in steelmaking process, need to monitor liquid level and slag thickness in furnace bottom thickness, stove, but there is following defect in prior art: first, converter bottom thickness can only reach 80 degree to 100 to be measured while spending at stove inclination angle, yet converter is from 0 degree to 80 degree to 100 degree, reset to again 0 degree and need the long period, for guaranteeing productivity, converter bottom thickness can't be accomplished every stove steel monitoring, has certain potential safety hazard; The second, the method for measuring liquid level in stove is to utilize the iron staff being bundled on oxygen rifle to implement mechanical measurement, and general 8-15 stove steel is measured once, to the reacting condition of liquid level not in time; The 3rd, also do not monitor the method for slag thickness at present.
Summary of the invention
A kind of converter working of a furnace Monitoring systems provided by the invention, in furnace bottom thickness and stove, liquid level can be accomplished every stove steel monitoring, and can monitor slag thickness in stove.
For realizing above-mentioned technique effect, the invention provides a kind of converter working of a furnace Monitoring systems, comprise: laser ranging system and control device, flue has irradiation hole over against the position of converter mouth top, described laser ranging system is arranged on and irradiates top, hole, the monitoring side of described laser ranging system is over against the irradiation hole of flue, described control device is electrically connected to laser ranging system, control device is according to the tapping signal receiving or convert iron signal or empty stove signal judges whether to open laser ranging system, if unlatching laser ranging system, laser ranging system arrives control device by the data transmission of monitoring, control device calculates liquid level or furnace bottom thickness in slag thickness or stove according to the data of laser ranging system transmission.
Preferably, described laser ranging system comprises: the water cold sleeve of protecting crust, laser ranger, cylindricality, protecting crust wherein, there is the first cavity and the second cavity, the first cavity is provided with transmitting aperture, the second cavity be provided with light well and with light well over against light hole, the light well of described the second cavity docks with the transmitting aperture of the first cavity, the light hole of described the second cavity is over against the irradiation hole of described flue.
In the first cavity, laser ranger is installed, the Laser emission end of laser ranger and laser pick-off are rectified described transmitting aperture.
In the second cavity, be provided with the water cold sleeve of cylindricality, have storage chamber and run through water inlet pipe and the rising pipe that the second cavity is communicated with storage chamber in the tube wall of described water cold sleeve, the mouth of pipe of described water cold sleeve is over against described transmitting aperture.
Preferably, described protecting crust also has the 3rd cavity being connected with the second cavity, described the 3rd cavity be provided with light inlet and with light inlet over against light-emitting window, light inlet docks with the light hole of described the second cavity, and the sidewall of described the 3rd cavity is provided with the first relative air inlet port and the second air inlet port.
Preferably, the light-emitting window of described the 3rd cavity connects ball valve switch.
Preferably, described ball valve switch opening part is provided with upper flange, and described flue has the lower flange being connected with upper flange, and described lower flange will irradiate escutcheon within it.
Converter working of a furnace Monitoring systems provided by the invention, comprise: be arranged on laser ranging system on flue, the Laser emission end of laser ranging system from the irradiation hole direct projection of flue in Converter, the laser thing that meets with obstruction is reflected back laser ranger, laser ranging system before steel-making, in steelmaking process and steel-making calculate respectively and obstacle distance after finishing, calculate in furnace bottom thickness, stove slag layer thickness in liquid level and stove.
Accompanying drawing explanation
Fig. 1 is the partial schematic diagram of existing converter steelmaking system;
Fig. 2 is the structural representation of existing converter;
Fig. 3 is the structural representation of the first embodiment of converter laser ranging system of the present invention;
Fig. 4 is the second cavity embodiment illustrated in fig. 3, the sectional view of water cold sleeve;
Fig. 5 is the structural representation of the second embodiment of converter laser ranging system of the present invention;
Fig. 6 is the structural representation of the 3rd embodiment of converter laser ranging system of the present invention;
Fig. 7 is the working condition chart of Converter condition detection system of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Fig. 3 is the structural representation of the first embodiment of converter laser ranging system of the present invention, and with reference to figure 3, converter laser ranging system comprises that water cold sleeve 33 protecting crusts 31 of protecting crust 31, laser ranger 32 and cylindricality comprise the first cavity 311 and the second cavity 312; Laser ranger 32 is arranged in the first cavity 311, and the water cold sleeve 33 of cylindricality is arranged in the second cavity 312, and the first cavity 311 bottoms are provided with transmitting aperture 313, and the Laser emission end of laser ranger 32 and laser pick-off are rectified described transmitting aperture 313; The upper end of the second cavity 312 is connected with the bottom of the first cavity 311, and wherein the light well of the second cavity 312 upper ends (not marking in figure) docks with the transmitting aperture 313 of the first cavity 311 bottoms; The described mouth of pipe that is arranged on the water cold sleeve 33 in the second cavity, over against transmitting aperture 313, guarantees that laser ranger 32 Emission Lasers lines are clog-free through water cold sleeve 33.
In the first embodiment, converter laser ranging system is installed or is lifted on the flue of converter mouth top, flue is provided with over against converter mouth place and irradiates hole, and the laser of the laser ranger transmitting of monitoring device is successively through the light-emitting window of the light inlet of the second cavity, water cold sleeve, the second cavity and irradiate hole and inject in converter.
In the first embodiment of the present invention, as shown in Figure 4, water cold sleeve 33 by inwall 331, outer wall 332 and be arranged on inwall 331 and outer wall 332 between storage chamber 333 form, water inlet pipe 34 and rising pipe 35 run through respectively the storage chamber 333 of the chamber wall connection water cold sleeve 33 of the second cavity 312, from rising pipe 35, discharge.Cold water absorbs into irradiating from flue the flue-gas temperature that hole enters the second cavity 312, prevents that the high-temperature flue gas in flue from entering the first cavity damage laser ranger.
Fig. 5 is the structural representation of the second embodiment of converter laser ranging system of the present invention, with reference to figure 5, the 3rd cavity 51 is positioned at the second cavity 312 bottoms, the 3rd cavity 51 be provided with light inlet 512 and with light inlet 512 over against light-emitting window 511, light inlet 511 docks and is integrated with the light hole of described the second cavity, the sidewall of the 3rd cavity 51 is provided with the first air inlet port 513, and be provided with second air inlet port 514 relative with described the first air inlet port, the first air inlet port 513 and the second air inlet port 514 are inputted nitrogen simultaneously, the high-temperature flue gas that nitrogen hinders flue from light-emitting window 511 ejections enters the second cavity 312.The sidewall of apparent the 3rd cavity can arrange a plurality of air inlet ports.
Fig. 6 is the structural representation of the 3rd embodiment of converter laser ranging system of the present invention, with reference to the light-emitting window 511 connection ball valve switchs 61 of figure 6, the three cavitys.When installing or safeguarding laser ranging system, close ball valve switch 61, the high-temperature flue gas in isolated flue, prevents that high-temperature flue gas from damaging laser ranger.
As shown in Figure 6, when laser ranging system is arranged on flue, the opening part of ball valve switch is provided with upper flange 62, on the irradiation hole of flue, is provided with lower flange 63, the lower flange 63 that upper flange 62 connects.
Fig. 7 is the one-piece construction schematic diagram of working of a furnace Monitoring systems of the present invention, with reference to figure 7, flue 72 directly over converter 71 fire doors is provided with the irradiation hole 73 over against converter mouth, laser ranging system 74 of the present invention is arranged on the top of irradiating hole, and its Laser emission end and laser pick-off are rectified flue irradiation hole 73.
When monitoring furnace bottom change value of thickness, laser ranging system 74 transmittings are irradiated hole and converter mouth perpendicular to the laser of horizontal plane through flue, and laser is injected in Converter, meets plane of reflection and is reflected back laser ranging system.Measure first converter in empty stove state, the furnace lining that laser is met converter bottom is reflected back laser ranging system, and now, the reflective distance of laser is benchmark value a.Obliquity sensor 75 Real-Time Monitoring converter states, after converter tapping, the angle of inclination of obliquity sensor monitoring converter, control device reads the signal that obliquity sensor monitors in real time, when obliquity sensor 75 judges that the dip angle signal reading is zero degree, control device 76 is opened laser ranging system, laser ranging system 73 is to furnace bottom Emission Lasers, the distance that laser contact furnace bottom is reflected back laser ranging system is current monitor value, and the difference of current monitor value and benchmark value a is the changing value of furnace bottom thickness.
Working of a furnace Monitoring systems of the present invention is except monitoring furnace bottom change value of thickness, can also monitor molten iron level height and slag thickness in Converter, concrete grammar is as follows: molten iron has been converted in control device judgement, before converter top-blow, open laser ranging system, laser ranging system 74 is to Emission Lasers in stove, laser is met molten iron level and is reflected back laser ranging system, now can determine in Converter that molten iron level is apart from laser ranging system distance h 1, the difference of distance h 1 and benchmark value a is molten iron level height h2 in stove; With measure molten iron level in like manner, in smelting process, laser ranging system is measured the distance h 3 on slag surface and laser ranging system in converter, the difference of distance h 1 and distance h 3, is slag thickness h 4.By monitoring slag thickness, can prevent slag splash; The converter molten iron level height of take is benchmark, accurate adjustment oxygen lance height.
Converter tapping state judging method is as follows: according to converter size, default converter corner and the residence time in control device, control device monitors oxygen rifle blow off signal, converter inclination angle reaches after predetermined angle, and in Preset Time, stop state is converter tapping state.
It is as follows that iron state judging method is converted in converter: according to converter size, default converter corner and the residence time in control device, control device monitors oxygen rifle blow off signal, converter inclination angle reaches after predetermined angle, and in Preset Time, stop state is converter tapping state.
The empty stove state judging method of converter is as follows: according to converter size, and default converter corner and the residence time in control device, if converter deflection surpasses predetermined angle, stop after Preset Time, then get back to 0 degree without stopping, be empty stove state.
The above embodiment is only the preferred embodiment for absolutely proving that the present invention lifts, and protection scope of the present invention is not limited to this.Being equal to that those skilled in the art do on basis of the present invention substitutes or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (5)
1. a converter working of a furnace Monitoring systems, it is characterized in that, comprise: laser ranging system and control device, flue has irradiation hole over against the position of converter mouth top, described laser ranging system is arranged on and irradiates top, hole, the monitoring side of described laser ranging system is over against the irradiation hole of flue, described control device is electrically connected to laser ranging system, control device is according to the tapping signal receiving or convert iron signal or empty stove signal judges whether to open laser ranging system, if unlatching laser ranging system, laser ranging system arrives control device by the data transmission of monitoring, control device calculates liquid level or furnace bottom thickness in slag thickness or stove according to the data of laser ranging system transmission.
2. converter working of a furnace Monitoring systems according to claim 1, is characterized in that, described laser ranging system comprises: the water cold sleeve of protecting crust, laser ranger, cylindricality, wherein,
Protecting crust, have the first cavity and the second cavity, the first cavity is provided with transmitting aperture, the second cavity be provided with light well and with light well over against light hole, the light well of described the second cavity docks with the transmitting aperture of the first cavity, and the light hole of described the second cavity is over against the irradiation hole of described flue;
In the first cavity, laser ranger is installed, the Laser emission end of laser ranger and laser pick-off are rectified described transmitting aperture;
In the second cavity, be provided with the water cold sleeve of cylindricality, have storage chamber and run through water inlet pipe and the rising pipe that the second cavity is communicated with storage chamber in the tube wall of described water cold sleeve, the mouth of pipe of described water cold sleeve is over against described transmitting aperture.
3. converter laser ranging system according to claim 2, it is characterized in that, described protecting crust also has the 3rd cavity being connected with the second cavity, described the 3rd cavity be provided with light inlet and with light inlet over against light-emitting window, light inlet docks with the light hole of described the second cavity, and the sidewall of described the 3rd cavity is provided with the first relative air inlet port and the second air inlet port.
4. converter laser ranging system according to claim 3, is characterized in that, the light-emitting window of described the 3rd cavity connects ball valve switch.
5. converter laser ranging system according to claim 4, is characterized in that, described ball valve switch opening part is provided with upper flange, and described flue has the lower flange being connected with upper flange, and described lower flange will irradiate escutcheon within it.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369780.8A CN103695594A (en) | 2012-09-27 | 2012-09-27 | Converter condition monitoring system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210369780.8A CN103695594A (en) | 2012-09-27 | 2012-09-27 | Converter condition monitoring system |
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| CN103695594A true CN103695594A (en) | 2014-04-02 |
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| CN201210369780.8A Pending CN103695594A (en) | 2012-09-27 | 2012-09-27 | Converter condition monitoring system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232837A (en) * | 2014-09-24 | 2014-12-24 | 杭州谱诚泰迪实业有限公司 | Monitoring device for tapping of converter/electric furnace and control method |
| CN108387274A (en) * | 2018-05-18 | 2018-08-10 | 杭州谱诚泰迪实业有限公司 | The device and method that ladle packet condition measures is realized by 3-D scanning |
| CN109266808A (en) * | 2018-10-22 | 2019-01-25 | 中冶赛迪技术研究中心有限公司 | The synthesis cognitive method of converter |
| CN109880964A (en) * | 2019-04-16 | 2019-06-14 | 山东钢铁股份有限公司 | State testing method and equipment in a kind of Converter |
| CN112179945A (en) * | 2019-07-01 | 2021-01-05 | 上海梅山钢铁股份有限公司 | Device and method for on-line monitoring of furnace wall defects of high-temperature reaction furnace |
| CN117683960A (en) * | 2023-12-04 | 2024-03-12 | 北京科技大学 | Blocking detection and gas circuit re-ventilation method for converter bottom blowing element based on laser signal |
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| JP2008214717A (en) * | 2007-03-06 | 2008-09-18 | Jfe Steel Kk | Instrument for measuring furnace body-state of converter |
| CN101339005A (en) * | 2008-08-18 | 2009-01-07 | 长沙有色冶金设计研究院 | Kiln lining thickness measuring system and method |
| CN202925053U (en) * | 2012-09-27 | 2013-05-08 | 余健 | Furnace condition monitoring system for converting furnace |
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| CN2754036Y (en) * | 2004-09-15 | 2006-01-25 | 中色科技股份有限公司 | Large tonnage tilting furnacne laser liquid level control device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104232837A (en) * | 2014-09-24 | 2014-12-24 | 杭州谱诚泰迪实业有限公司 | Monitoring device for tapping of converter/electric furnace and control method |
| CN108387274A (en) * | 2018-05-18 | 2018-08-10 | 杭州谱诚泰迪实业有限公司 | The device and method that ladle packet condition measures is realized by 3-D scanning |
| CN108387274B (en) * | 2018-05-18 | 2024-03-19 | 杭州谱诚泰迪实业有限公司 | Device and method for realizing measurement of ladle Bao Kuang through three-dimensional scanning |
| CN109266808A (en) * | 2018-10-22 | 2019-01-25 | 中冶赛迪技术研究中心有限公司 | The synthesis cognitive method of converter |
| CN109266808B (en) * | 2018-10-22 | 2020-12-22 | 中冶赛迪技术研究中心有限公司 | Comprehensive sensing method for converter |
| CN109880964A (en) * | 2019-04-16 | 2019-06-14 | 山东钢铁股份有限公司 | State testing method and equipment in a kind of Converter |
| CN109880964B (en) * | 2019-04-16 | 2024-08-13 | 山东钢铁股份有限公司 | Method and equipment for detecting condition in converter |
| CN112179945A (en) * | 2019-07-01 | 2021-01-05 | 上海梅山钢铁股份有限公司 | Device and method for on-line monitoring of furnace wall defects of high-temperature reaction furnace |
| CN117683960A (en) * | 2023-12-04 | 2024-03-12 | 北京科技大学 | Blocking detection and gas circuit re-ventilation method for converter bottom blowing element based on laser signal |
| CN117683960B (en) * | 2023-12-04 | 2024-06-11 | 北京科技大学 | Blocking detection and gas circuit re-ventilation method for converter bottom blowing element based on laser signal |
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Application publication date: 20140402 |