CN203725730U - Steel ladle slagging detection device - Google Patents
Steel ladle slagging detection device Download PDFInfo
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- CN203725730U CN203725730U CN201420022246.4U CN201420022246U CN203725730U CN 203725730 U CN203725730 U CN 203725730U CN 201420022246 U CN201420022246 U CN 201420022246U CN 203725730 U CN203725730 U CN 203725730U
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- 238000001514 detection method Methods 0.000 title claims abstract description 20
- 229910000831 Steel Inorganic materials 0.000 title abstract description 28
- 239000010959 steel Substances 0.000 title abstract description 28
- 238000012545 processing Methods 0.000 claims abstract description 50
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 4
- 239000002893 slag Substances 0.000 claims description 109
- 230000003321 amplification Effects 0.000 claims description 27
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 27
- 230000003750 conditioning effect Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 16
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- 238000012544 monitoring process Methods 0.000 claims description 8
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
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- 238000012360 testing method Methods 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000009851 ferrous metallurgy Methods 0.000 abstract description 3
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 238000005266 casting Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000009749 continuous casting Methods 0.000 description 1
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- 238000003672 processing method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
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Abstract
The utility model relates to the field of automatic control over ferrous metallurgy and aims to provide a steel ladle slagging detection device. The steel ladle slagging detection device is used for detecting steel ladle slagging in a converter and comprises a system control unit, an auxiliary system control unit, a vibration sensor, a front stage adjusting and amplifying module and a camera. The system control unit comprises an industrial grade liquid crystal display, an industrial personal computer and an industrial on-site processing control unit. The auxiliary system control unit comprises a slagging alarming horn, a slagging alarming light, an input detection switch and an on-site industrial display. According to the detection device, slagging can be accurately monitored by processing vibration signals and image signals in real time, other auxiliary devices are not needed, and the device is low in manufacturing cost, convenient to install, easy to disassemble and assemble, suitable for the basic condition of an iron and steel enterprise, and convenient to popularize; due to the fact that the vibration sensor, the front stage adjusting and amplifying module and the camera are installed at positions far away from molten steel, the service life of the sensor and the camera can be long.
Description
Technical field
The utility model is about Ferrous Metallurgy automation control area, particularly a kind of ladle roughing slag checkout gear.
Background technology
Along with the aggravation of market competition, each big steel company has focused in the research and development of high-end product, and for the production of fine quality steel, it is a very the key link that ladle roughing slag detects.Many companies, for solving ladle roughing slag forecasting problem, have researched and developed multiple ladle roughing slag detection technique.
Slag detection system based on infrared technique can ensure to start to realize accurate, slag detection reliably from tapping process.Only this type systematic detects through the lower slag that is commonly used in converter taphole at present, under continuous casting full guard pouring condition, can't be applied to ladle and detect to the lower slag of tundish.Its shortcoming is that steel stream can not be blocked in detection, if detect to the lower slag of tundish for ladle, must remove long nozzle, and will cause like this secondary oxidation of molten steel, detect so be generally not used in the lower slag of ladle at present, be mainly used in converter taphole and detect to the lower slag of ladle.
Induction lower slag detection system is considered at present more advanced in the world lower slag detection system, and abroad existing many steel mills adopt this system, and obtain better metallurgical effect and economic benefit.Because this type systematic will be transformed ladle, imbed coil at ladle bottom, improvement expenses costliness, and because operating ambient temperature is higher, coil is easy to damage, and on average within every two months, will change the coil of ladle bottom used, sensor, and therefore use cost is higher.
In addition, utilizing ultrasonic wave to carry out molten steel discharged slag detection is also a kind of conventional method.The principle of ultrasonic Detection Method be utilize in ladle beam, have slag and during without slag the difference between ultrasonic wave transmitting, reflected signal realize the detection to slag.Although this method does not affect casting process, because the operating ambient temperature of ultrasonic probe is up to 1500 DEG C of left and right, working environment is more severe, manufacture and the expense that uses higher, also have long segment distance from commercial Application.
Detecting the lower slag in casting process by experiencing the vibration of mechanically actuated arm, is the method for slag under a kind of indirect monitoring, just starts to be adopted by part workman in actual casting process before more than ten years.In pouring molten steel process, steel flow is in the time that long nozzle injects tundish, and molten steel impacts long nozzle wall must cause the mechanically actuated arm vibration for supporting long nozzle.Because slag proportion only has the half of molten steel proportion, float over molten steel surface, in the time that Baogang's water is about to be poured, slag just occurs, now, because slag is light, viscosity is large, and mobility is also poor, it reduces the impact forces of long nozzle wall, causes the vibration of the mechanically actuated arm being attached thereto also to reduce.Thereby pouring into a mould latter stage, workman can touch by feel the vibration of mechanically actuated arm, judge whether lower slag, and determines whether to close slide gate nozzle.
But due in pouring molten steel process, there is the factor of a large amount of impact cast structural vibrations, make above-mentioned personal monitoring's method sometimes be difficult to prove effective.Main cause is:
1, in pouring molten steel process, molten steel might not contact with long nozzle wall and directly enter tundish sometimes, causes the vibration of mechanically actuated arm very little, and artificial being difficult to differentiated the lower slag moment;
2, in bag pouring molten steel latter stage, there is sometimes molten steel eddy flow and under phenomenon, now slag also can be involved in, and is rotating, with long nozzle wall, percussion constantly occurs with the steel stream of slag, thereby cause the vibration of mechanically actuated arm to reduce, manually cannot differentiate lower slag at all.
These methods, in the process of monitoring mechanically actuated arm vibration, mainly investigate the size of vibration amplitude, and the size of vibration amplitude and slide gate nozzle aperture have direct relation.Therefore, these methods in use, must make mouth of a river aperture size remain unchanged.And in the time that reality is poured into a mould, in the cast later stage of Baogang's water, constantly regulate slide gate nozzle aperture, to keep the stable of pouring basket liquid level.Therefore such vibration signal processing method has larger limitation, is difficult to meet actual needs.
Utility model content
Main purpose of the present utility model is to overcome deficiency of the prior art, provides the one can be at monitoring analysis mouth of a river motion arm vibration signal simultaneously, and near monitoring middle water containing opening, molten steel surface turns over the lower slag checkout gear of slag phenomenon.For solving the problems of the technologies described above, solution of the present utility model is:
A kind of ladle roughing slag checkout gear is provided, carries out ladle roughing slag detection for converter, described ladle roughing slag checkout gear comprises system control unit, system supplymentary control module, vibrating sensor and prime conditioning amplification module, video camera;
Described system control unit comprises technical grade liquid crystal display, industrial computer, industry spot processing and control element (PCE), and industry spot processing and control element (PCE) is connected with system supplymentary control module by cable; Described industrial computer carries out lower slag judgement for the information of analyzing vibrating sensor and prime conditioning amplification module and video camera acquisition by integrated treatment, and lower slag alarm signal is reported to the police and shown by system supplymentary control module; Described industry spot processing and control element (PCE), for gathering vibrating sensor and the vibration signal of prime conditioning amplification module, the vision signal of video camera, drops into the output processing of the input of sense switch signal and lower slag alarm signal;
Described system supplymentary control module comprises lower slag alarming horn and alarm lamp, input sense switch, on-the-spot industrial display, lower slag alarming horn and alarm lamp are used for reporting to the police and showing, drop into sense switch for obtaining the signal (by execute-in-place industry control system) that whether carries out lower slag detection, on-the-spot industrial display is that the system of ladle roughing slag checkout gear shows main interface, for showing the situation of change of vision signal of vibration signal, video camera of vibrating sensor and prime conditioning amplification module;
Described vibrating sensor and prime conditioning amplification module is arranged on one end away from long nozzle on the mouth of a river motion arm of converter, be connected with industrial computer with industry spot processing and control element (PCE) successively by cable, vibrating sensor and prime conditioning amplification module are used for gathering the vibration signal of mouth of a river motion arm, and after amplification, filtering, form effectively lower slag vibration signal;
Described video camera is connected with industrial computer with industry spot processing and control element (PCE) successively by cable, for monitoring the slag situation of turning over of middle water containing opening of converter.
As further improvement, built-in vibration signal processing algoritic module in described industrial computer, vibration signal processing algoritic module obtains lower slag vibration useful signal by high-pass filtering, LPF, then lower slag vibration useful signal is carried out after oscillation intensity analysis, spectrum analysis, compare with lower slag signal characteristic value, thereby judge whether lower slag; Described lower slag signal characteristic value refers to by the standard value that repeatedly on-the-spot repetition test obtains, judges whether lower slag for contrasting.
As further improvement, built-in picture signal Processing Algorithm module in described industrial computer, picture signal Processing Algorithm module is converted to picture signal and is turned over slag image useful signal by Processing Algorithm (noise reduction, binaryzation etc.), then carry out numerical statistic analysis by turning over slag image useful signal, draw the judgement of whether descending slag.
As further improvement, built-in switching value signal input and output modules in described industrial computer, switching value signal input and output module is obtained the outside input signal that drops into sense switch by industry spot processing and control element (PCE) on the one hand, processes judgement for starting lower slag; On the other hand, the result of synthesis oscillation signal processing algorithm module and picture signal Processing Algorithm module, produces lower slag alarm signal, controls industry spot processing and control element (PCE) and outputs to system supplymentary control module.
As further improvement, described vibrating sensor and prime conditioning amplification module, adopt the inner piezoelectric acceleration transducer that is integrated with amplifying circuit.
As further improvement, described video camera adopts CMOS camera, and adds filtering apparatus at the front end of video camera, the filtering apparatus visible light intensity of jammr band that is used for decaying.
Compared with prior art, the beneficial effects of the utility model are:
1, the utility model only need be installed vibrating sensor and prime conditioning amplification module on the motion arm of the mouth of a river, and in middle water containing opening visual range, video camera is installed, by vibration signal and picture signal are carried out to real-time signal processing, can accurately monitor lower slag, and without other servicing units;
2, equipment manufacturing cost is low, easy for installation, is easy to dismounting, is applicable to the basic condition of iron and steel enterprise, is convenient to promote;
3, because the installation site of vibrating sensor and prime conditioning amplification module, video camera is away from molten steel, so sensor and video camera can have longer service life.
Brief description of the drawings
Fig. 1 is systemic-function framework schematic diagram of the present utility model.
Reference numeral in figure is: 1 ladle; 2 tundish; 3 long nozzles; 4 mouth of a river motion arms; 5 vibrating sensors and prime conditioning amplification module; 6 video cameras; 7 system supplymentary control modules; 8 system control units.
Detailed description of the invention
First it should be noted that, the utility model relates to database technology, is the one application of computer technology in Ferrous Metallurgy automation control area.In implementation procedure of the present utility model, can relate to the application of multiple software function modules.Applicant thinks, as reading over application documents, accurate understanding is of the present utility model realize principle and utility model object after, in conjunction with existing known technology in the situation that, those skilled in the art can use the software programming technical ability of its grasp to realize the utility model completely.Aforementioned software functional module comprises but is not limited to: vibration signal processing algoritic module, picture signal Processing Algorithm module, switching value signal input and output module etc., and this category of all genus that all the utility model application documents are mentioned, applicant will not enumerate.
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
Ladle roughing slag checkout gear in Fig. 1 comprises system control unit 8, system supplymentary control module 7, vibrating sensor and prime conditioning amplification module 5, video camera 6, auxiliary device, carries out ladle roughing slag detection for converter.
System control unit 8 is indoor switch boards, comprises technical grade liquid crystal display, industrial computer, industry spot processing and control element (PCE), and industry spot processing and control element (PCE) is connected with system supplymentary control module 7 by cable.Described industry spot processing and control element (PCE), for gathering vibrating sensor and the vibration signal of prime conditioning amplification module 5, the vision signal of video camera 6, drops into the output processing of the input of sense switch signal and lower slag alarm signal.Described industrial computer is nursed one's health the information that amplification module 5 and video camera 6 obtain and is carried out lower slag judgement for analyzes vibrating sensor and prime by integrated treatment, and lower slag alarm signal is reported to the police and shown by system supplymentary control module 7.
Built-in vibration signal processing algoritic module in industrial computer, vibration signal processing algoritic module obtains lower slag vibration useful signal by high-pass filtering, LPF, then lower slag vibration useful signal is carried out after oscillation intensity analysis, spectrum analysis, compare with existing lower slag signal characteristic value, thereby judge whether lower slag, this lower slag characteristic value is obtained by on-the-spot repetition test repeatedly.Built-in picture signal Processing Algorithm module in industrial computer, picture signal Processing Algorithm module is converted to picture signal and is turned over slag image useful signal by Processing Algorithm (noise reduction, binaryzation etc.), then carry out numerical statistic analysis by turning over slag image useful signal, draw the judgement of whether descending slag.Built-in switching value signal input and output modules in industrial computer, switching value signal input and output module is obtained the outside input signal that drops into sense switch by industry spot processing and control element (PCE) on the one hand, processes judgement for starting lower slag; On the other hand, the result of synthesis oscillation signal processing algorithm module and picture signal Processing Algorithm module, produces lower slag alarm signal, controls industry spot processing and control element (PCE) and outputs to system supplymentary control module 7.
System supplymentary control module 7 is that the front end of ladle roughing slag checkout gear shows and control member, comprise lower slag alarming horn and alarm lamp, input sense switch, on-the-spot industrial display, lower slag alarming horn and alarm lamp are used for reporting to the police and showing, drop into sense switch by execute-in-place industry control system, for obtaining the signal that whether carries out lower slag detection, the system that on-the-spot industrial display is ladle roughing slag checkout gear shows main interface, for showing the situation of change of vibration signal and vision signal.
Vibrating sensor and prime conditioning amplification module 5 are front end vibration signals collecting members, adopt the inner piezoelectric acceleration transducer that is integrated with amplifying circuit, be arranged on one end away from long nozzle 3 on the mouth of a river motion arm 4 of converter, be connected with industrial computer with industry spot processing and control element (PCE) successively by cable.Vibrating sensor and prime conditioning amplification module 5 are for gathering the vibration signal of mouth of a river motion arm 4, and slag vibration signal under forming effectively after amplification, filtering.
Video camera 6 is front end picture signal acquisition member, adopts CMOS camera, and front end has installed filtering apparatus additional, this device visible light intensity of jammr band of can decaying.Video camera 6 is arranged in tundish 2 mouth of a river visual ranges, and is connected with industrial computer with industry spot processing and control element (PCE) successively by cable, for monitoring the slag situation of turning at tundish 2 mouths of a river of converter.
When work, the process of molten steel from ladle 1 to tundish 2, molten steel is mixing slag and is flowing in tundish 2 by long nozzle 3, and vibrating sensor and prime conditioning amplification module 5 can be monitored the vibration acceleration perpendicular to two different directions in mouth of a river motion arm 4 planes.In the lower slag later stage, video camera 6 can clearly photograph the slag situation of turning over of tundish 2 positions, the mouth of a river.System control unit 8 is by integrated treatment and analyze vibrating sensor and prime conditioning amplification module 5 and information that video camera 6 obtains is carried out lower slag judgement, and lower slag is reported to the police and reported to the police and shown by system supplymentary control module 7.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from the disclosed content of the utility model, all should think protection domain of the present utility model.
Claims (6)
1. a ladle roughing slag checkout gear, carries out ladle roughing slag detection for converter, it is characterized in that, described ladle roughing slag checkout gear comprises system control unit, system supplymentary control module, vibrating sensor and prime conditioning amplification module, video camera;
Described system control unit comprises technical grade liquid crystal display, industrial computer, industry spot processing and control element (PCE), and industry spot processing and control element (PCE) is connected with system supplymentary control module by cable; Described industrial computer carries out lower slag judgement for the information of analyzing vibrating sensor and prime conditioning amplification module and video camera acquisition by integrated treatment, and lower slag alarm signal is reported to the police and shown by system supplymentary control module; Described industry spot processing and control element (PCE), for gathering vibrating sensor and the vibration signal of prime conditioning amplification module, the vision signal of video camera, drops into the output processing of the input of sense switch signal and lower slag alarm signal;
Described system supplymentary control module comprises lower slag alarming horn and alarm lamp, input sense switch, on-the-spot industrial display, lower slag alarming horn and alarm lamp are used for reporting to the police and showing, drop into sense switch for obtaining the signal that whether carries out lower slag detection, on-the-spot industrial display is that the system of ladle roughing slag checkout gear shows main interface, for showing the situation of change of vision signal of vibration signal, video camera of vibrating sensor and prime conditioning amplification module;
Described vibrating sensor and prime conditioning amplification module is arranged on one end away from long nozzle on the mouth of a river motion arm of converter, be connected with industrial computer with industry spot processing and control element (PCE) successively by cable, vibrating sensor and prime conditioning amplification module are used for gathering the vibration signal of mouth of a river motion arm, and after amplification, filtering, form effectively lower slag vibration signal;
Described video camera is connected with industrial computer with industry spot processing and control element (PCE) successively by cable, for monitoring the slag situation of turning over of middle water containing opening of converter.
2. a kind of ladle roughing slag checkout gear according to claim 1, it is characterized in that, built-in vibration signal processing algoritic module in described industrial computer, vibration signal processing algoritic module obtains lower slag vibration useful signal by high-pass filtering, LPF, then lower slag vibration useful signal is carried out after oscillation intensity analysis, spectrum analysis, compare with lower slag signal characteristic value, thereby judge whether lower slag; Described lower slag signal characteristic value refers to by the standard value that repeatedly on-the-spot repetition test obtains, judges whether lower slag for contrasting.
3. a kind of ladle roughing slag checkout gear according to claim 2, it is characterized in that, built-in picture signal Processing Algorithm module in described industrial computer, picture signal Processing Algorithm module is converted to picture signal to turn over slag image useful signal by Processing Algorithm, then carry out numerical statistic analysis by turning over slag image useful signal, draw the judgement of whether descending slag.
4. a kind of ladle roughing slag checkout gear according to claim 3, it is characterized in that, built-in switching value signal input and output modules in described industrial computer, switching value signal input and output module is obtained the outside input signal that drops into sense switch by industry spot processing and control element (PCE) on the one hand, processes judgement for starting lower slag; On the other hand, the result of synthesis oscillation signal processing algorithm module and picture signal Processing Algorithm module, produces lower slag alarm signal, controls industry spot processing and control element (PCE) and outputs to system supplymentary control module.
5. a kind of ladle roughing slag checkout gear according to claim 1, is characterized in that, described vibrating sensor and prime conditioning amplification module, adopt the inner piezoelectric acceleration transducer that is integrated with amplifying circuit.
6. a kind of ladle roughing slag checkout gear according to claim 1, is characterized in that, described video camera adopts CMOS camera, and adds filtering apparatus at the front end of video camera, the filtering apparatus visible light intensity of jammr band that is used for decaying.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420022246.4U CN203725730U (en) | 2014-01-14 | 2014-01-14 | Steel ladle slagging detection device |
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| CN201420022246.4U CN203725730U (en) | 2014-01-14 | 2014-01-14 | Steel ladle slagging detection device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148636A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | Slag discharge detecting device of revolving furnace and detection method |
| CN111451467A (en) * | 2020-04-20 | 2020-07-28 | 马鞍山钢铁股份有限公司 | Continuous casting ladle pouring state monitoring system and monitoring method |
| CN114682772A (en) * | 2022-03-19 | 2022-07-01 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo ladle |
-
2014
- 2014-01-14 CN CN201420022246.4U patent/CN203725730U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106148636A (en) * | 2015-03-27 | 2016-11-23 | 上海梅山钢铁股份有限公司 | Slag discharge detecting device of revolving furnace and detection method |
| CN111451467A (en) * | 2020-04-20 | 2020-07-28 | 马鞍山钢铁股份有限公司 | Continuous casting ladle pouring state monitoring system and monitoring method |
| CN114682772A (en) * | 2022-03-19 | 2022-07-01 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo ladle |
| CN114682772B (en) * | 2022-03-19 | 2024-02-23 | 杭州谱诚泰迪实业有限公司 | Automatic iron folding control method for torpedo tank |
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Granted publication date: 20140723 |