CN203976842U - A kind of slag discharge detecting device of revolving furnace - Google Patents
A kind of slag discharge detecting device of revolving furnace Download PDFInfo
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- CN203976842U CN203976842U CN201420340061.8U CN201420340061U CN203976842U CN 203976842 U CN203976842 U CN 203976842U CN 201420340061 U CN201420340061 U CN 201420340061U CN 203976842 U CN203976842 U CN 203976842U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
A kind of slag discharge detecting device of revolving furnace, belongs to converter smelting test set technical field, detects for the lower slag to steel-making converter.Its technical scheme is: its thermal infrared imager is placed in thermal imaging system protecting jacket, the signal output part of thermal infrared imager is connected with field control case, industrial computer and indicating meter by optical transmitter and receiver, flag alarm is connected with field control case, electric control box is connected with thermal infrared imager, optical transmitter and receiver, industrial computer and indicating meter respectively, and voltage stabilized source is connected with above-mentioned each consumer.The utility model has been realized invisible pushing off the slag technology, result of use is good, set the lower quantity of slag time and alarm, make the quantity of slag under converter obtain effective control, thickness of slag layer generally between 50-80mm, did not occur because of the thickness of slag layer accident that causes molten steel to melt down that exceeds standard, improve molten steel recovery rate, avoid the impact of human factor, also avoided the lower slag phenomenon of remaining steel phenomenon or volume, there is significant economic benefit.
Description
Technical field
The utility model relates to a kind of device that the lower slag of steel-making converter is detected, and belongs to converter smelting test set technical field.
Background technology
In converter steelmaking, slag swims on molten steel, and when tapping, molten steel flows out from tap hole, and slag need to keep off in ladle, and conventional slag stopping method has slag-blocking ball method, floating plug method and scum rod method at present.
(1) slag-blocking ball method.Slag-blocking ball ratio juris is to utilize slag-blocking ball density (to be generally 4.2-4.5 grams/cc) between steel, slag, blocks tap hole and flow in ladle with blocking-up slag in the time tapping end.Slag-blocking ball is generally spherical, as long as can meet processing requirement, all makes every effort to simple in structure, with low cost.But because slag-blocking ball normally arrives tap hole in the mode of drifting with the tide, but because slag viscosity is large, pushing off the slag can not reach tap hole sometimes.In addition, because circular slag-blocking ball is fallen on tap hole completely, the probability of the too early shutoff of tap hole significantly increases, and has reduced molten steel recovery rate again, therefore the reliability of slag-blocking ball is unsatisfactory.
(2) floating plug method.Floating plug is to be a kind ofly top in shape with bar, the fire resistive material product that can lead, and its density and slag-blocking ball are close, between 4.5-4.7 gram/cc, can float on slag interface, be accompanied by tapping process, block gradually tap hole, realize the effect that suppresses eddy current and pushing off the slag.But because be all difficult to guarantee the opportunity of the accuracy of throwing in and input, cause pushing off the slag effect also unstable equally.
(3) scum rod method.The method is that scum rod is hung on support arm and can in stove, moves freely, and in the time that tapping closes to an end, in stove, tap hole is blocked, and to reach pushing off the slag object, but this device Operation and Maintenance is comparatively complicated.
Because the hit rate of these slag stopping methods is not high, when therefore a lot of steel mills state slag stopping method in the use, still need the quantity of slag under personal monitoring.When personal monitoring, workman's labour intensity is very high, also high to operative employee's technical requirements, and lower slag monitoring is subject to the impact of artifact larger.
From the development trend of pushing off the slag technology, both at home and abroad progressively from the invisible pushing off the slag method of tangible pushing off the slag normal direction future development.Owing to adopting the tangible pushing off the slag thing pushing off the slag such as slag-blocking ball, materials consumption is high, and pushing off the slag effect is undesirable.Many steel mills have adopted invisible pushing off the slag technology both at home and abroad, as slag detection system under the converter of Lei Mu company release, realize and automatically control pushing off the slag, and reliability is high, pushing off the slag effect is also fine, and has improved molten steel recovery rate, has also reduced pushing off the slag expense.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of slag discharge detecting device of revolving furnace, this lower slag proofing unit can reduce workman's labour intensity, and eliminate the impact of human factor, and improve the accuracy that lower slag detects, effectively improve molten steel recovery rate and control the lower quantity of slag.
The technical scheme solving the problems of the technologies described above is:
A kind of slag discharge detecting device of revolving furnace, it comprises thermal infrared imager, thermal imaging system protecting jacket, field control case, industrial computer and indicating meter, flag alarm, electric control box, optical transmitter and receiver, voltage stabilized source, thermal infrared imager is placed in thermal imaging system protecting jacket, the signal output part of thermal infrared imager is connected with field control case, industrial computer and indicating meter by optical transmitter and receiver, flag alarm is connected with field control case, electric control box is connected with thermal infrared imager, optical transmitter and receiver, industrial computer and indicating meter respectively, and voltage stabilized source is connected with above-mentioned each consumer.
Above-mentioned slag discharge detecting device of revolving furnace, configures infrared-filtered sheet on the infrared lens of described thermal infrared imager, thermal imaging system protecting jacket adopts two gas curtain safeguard structures.
Above-mentioned slag discharge detecting device of revolving furnace, described thermal imaging system protecting jacket and thermal infrared imager are rack-mount, and support is relative with converter taphole.
Above-mentioned slag discharge detecting device of revolving furnace, it also has gas-cleaning installation, has compressed-air actuated dedusting, the device that dewaters, degreases in gas-cleaning installation, and gas-cleaning installation is connected with thermal imaging system protecting jacket.
The beneficial effects of the utility model are:
Thermal infrared imager of the present utility model carries out video acquisition to the steel stream at converter taphole place, monitoring tapping process, the analysis of industrial computer to data such as infrared video figures, differentiate the slag of carrying secretly in molten steel, make operator directly see lower slag process and the quantity in molten steel, prescribe a time limit when the slag content in molten steel reaches in technique, system is sent warning immediately, prompting is lifted furnaceman and is lifted furnace operating, avoids more slag to flow in ladle.The utility model has been realized invisible pushing off the slag technology, result of use is good, in the time of the lower quantity of slag of setting, system and alarm, make the quantity of slag under converter obtain effective control, thickness of slag layer is generally between 50-80mm, do not occur, because of the thickness of slag layer accident that causes molten steel to melt down that exceeds standard, having improved molten steel recovery rate, avoided the impact of human factor, also avoid too much remaining steel phenomenon or the lower slag phenomenon of volume, there is significant economic benefit.
Brief description of the drawings
Fig. 1 is block diagram of the present utility model.
In figure, mark is as follows: thermal infrared imager 1, thermal imaging system protecting jacket 2, field control case 3, industrial computer and indicating meter 4, flag alarm 5, electric control box 6, optical transmitter and receiver 7, voltage stabilized source 8, support 9, gas-cleaning installation 10.
Embodiment
The utility model comprises thermal infrared imager 1, thermal imaging system protecting jacket 2, field control case 3, industrial computer and indicating meter 4, flag alarm 5, electric control box 6, optical transmitter and receiver 7, voltage stabilized source 8, support 9, gas-cleaning installation 10.
In figure, show, on the infrared lens of thermal infrared imager 1, configure infrared-filtered sheet, the image-generating unit of construction system, thermal infrared imager 1 is placed in thermal imaging system protecting jacket 2, carries out video acquisition for the steel stream to converter taphole place, monitoring tapping process.Because infrared imaging device is mounted near converter, its environment is extremely severe, scene not only Dust Capacity is large, and also has the radiation of high-temperature molten steel in ladle through out-of-date, therefore thermal imaging system protecting jacket 2 has adopted two gas curtain safeguard structures, ensureing in resistance to elevated temperatures, guarantee that window do not tie ash, to have ensured the sharpness of system infrared image.Under the normal condition of pressurized air supply, thermal infrared imager 1 can normally be worked 300 DEG C of hot environments.
In figure, show, the signal output part of thermal infrared imager 1 is connected with field control case 3, industrial computer and indicating meter 4 by optical transmitter and receiver 7.
Field control case 3 is mainly used in the power supply supply of the thermal infrared imager 1 in thermal imaging system protecting jacket 2, detection and the fiber optic communications equipment etc. of heat-eliminating medium supply situation.
Industrial computer and indicating meter 4 include video collector and dedicated video PaintShop, for the analysis to data such as infrared video figures.Utilize computer image processing technology to differentiate the slag of carrying secretly in molten steel, and represent molten steel and slag with two kinds of visibly different colors.Make operator directly see lower slag process and the quantity in molten steel.
In figure, show, fiber optic communications equipment comprises video optical multiplexer 7, tail optical fiber box and power supply adaptor, is mainly used in the data communication between thermal infrared imager 1 and the industrial computer of master control room.Optical transmitter and receiver 7 belongs to signal and communication equipment, for various data signals transmission.The transmission loss of optical cable transmission is minimum, and interference free performance is extremely strong, to ensureing that video transmission quality and system stability tool hold good security.
In figure, show, flag alarm 5 is connected with field controller 3.Flag alarm 5 is autoalarms of lower slag detection system.By the dedicated video analysis software of system, the lower quantity of slag of converter tapping process is detected in real time.Prescribe a time limit when the slag content in molten steel reaches in technique, system is sent warning immediately, and output feedback signal is to flag alarm 5 simultaneously, flag alarm 5 is obtaining after feedback signal, send immediately sound and light alarm, prompting is lifted furnaceman and is lifted furnace operating, avoids more slag to flow in ladle.Generally, flag alarm 5 should be arranged on lifts furnace operating chamber, for more directly perceived, also monitored picture can be transferred to and lift furnace operating chamber.
In figure, show, electric control box 6 is connected with thermal infrared imager 1, optical transmitter and receiver 7, industrial computer and indicating meter 4 respectively, and voltage stabilized source 8 is connected with above-mentioned each consumer.
In figure, show, gas-cleaning installation 10 is connected with thermal imaging system protecting jacket 2, and gas-cleaning installation 10, for to compressed-air actuated purifying treatment, comprises dedusting, dewaters and degreases etc., for thermal imaging system protecting jacket 2 provides clean cooling source of the gas, guarantee thermal infrared imager 1 steady operation.
In figure, show, thermal imaging system protecting jacket 2 and thermal infrared imager 1 are arranged on support 9, and support 9 is relative with the tap hole of converter 11.Support 9 is special in metallurgy environment designs, and for the installation of thermal imaging system protecting jacket 2, the semifixed The Cloud Terrace of joining facilitates setting angle to regulate, for rigging up and debugging facilitates.
Model or the specification of the part parts of an embodiment of the present utility model are as follows:
Thermal infrared imager: wave band 7.5～14um, resolving power 640 × 480; Thermal imaging system protecting jacket: STV7201; Field control case: STV7202; Support: STV7203; Industrial computer: 3.0GHz/1000GB; Indicating meter: SMT-1921P; Flag alarm: STV7204; Gas-cleaning installation: KGL0.4/8; Electric control box: STV7206; Optical transmitter and receiver: ST02919; Voltage stabilized source: APC-11.
Claims (4)
1. a slag discharge detecting device of revolving furnace, it is characterized in that: it comprises thermal infrared imager (1), thermal imaging system protecting jacket (2), field control case (3), industrial computer and indicating meter (4), flag alarm (5), electric control box (6), optical transmitter and receiver (7), voltage stabilized source (8), thermal infrared imager (1) is placed in thermal imaging system protecting jacket (2), the signal output part of thermal infrared imager (1) is by optical transmitter and receiver (7) and field control case (3), industrial computer and indicating meter (4) are connected, flag alarm (5) is connected with field control case (3), electric control box (6) respectively with thermal infrared imager (1), optical transmitter and receiver (7), industrial computer and indicating meter (4) are connected, voltage stabilized source (8) is connected with above-mentioned each consumer.
2. slag discharge detecting device of revolving furnace according to claim 1, is characterized in that: on the infrared lens of described thermal infrared imager (1), configure infrared-filtered sheet, thermal imaging system protecting jacket (2) adopts two gas curtain safeguard structures.
3. slag discharge detecting device of revolving furnace according to claim 2, is characterized in that: it is upper that described thermal imaging system protecting jacket (2) and thermal infrared imager (1) are arranged on support (9), and support (9) is relative with converter taphole.
4. slag discharge detecting device of revolving furnace according to claim 3, it is characterized in that: it also has gas-cleaning installation (10), gas-cleaning installation has compressed-air actuated dedusting in (10), the device that dewaters, degreases, and gas-cleaning installation (10) is connected with thermal imaging system protecting jacket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340061.8U CN203976842U (en) | 2014-06-25 | 2014-06-25 | A kind of slag discharge detecting device of revolving furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420340061.8U CN203976842U (en) | 2014-06-25 | 2014-06-25 | A kind of slag discharge detecting device of revolving furnace |
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| CN203976842U true CN203976842U (en) | 2014-12-03 |
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| CN201420340061.8U Active CN203976842U (en) | 2014-06-25 | 2014-06-25 | A kind of slag discharge detecting device of revolving furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105499522A (en) * | 2016-01-25 | 2016-04-20 | 北京华程东方科技有限公司 | Infrared thermal imaging detection system and device |
| 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 |
| CN106441584A (en) * | 2016-07-15 | 2017-02-22 | 天津理工大学 | Converter roughing slag detection method based on infrared temperature measurement |
-
2014
- 2014-06-25 CN CN201420340061.8U patent/CN203976842U/en active Active
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 |
| CN105499522A (en) * | 2016-01-25 | 2016-04-20 | 北京华程东方科技有限公司 | Infrared thermal imaging detection system and device |
| CN106441584A (en) * | 2016-07-15 | 2017-02-22 | 天津理工大学 | Converter roughing slag detection method based on infrared temperature measurement |
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