CN208313386U - A kind of argon station ladle liquid level sensor - Google Patents
A kind of argon station ladle liquid level sensor Download PDFInfo
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- CN208313386U CN208313386U CN201820387308.XU CN201820387308U CN208313386U CN 208313386 U CN208313386 U CN 208313386U CN 201820387308 U CN201820387308 U CN 201820387308U CN 208313386 U CN208313386 U CN 208313386U
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- ladle
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Abstract
The utility model provides a kind of argon station ladle liquid level sensor, comprising: the Image Acquisition instrument for acquiring ladle liquid level image, the image procossing detecting instrument for handling ladle liquid level image；Image Acquisition instrument is connected with image procossing detecting instrument.The utility model detects liquid steel level using contactless imaging device, obtains the image of liquid steel level, calculates molten steel bare area ratio according to image, and then determine whether ladle argon-blown effect meets technique requirement automatically.The utility model structure is simple, cost is relatively low, safety is higher, continuously real-time monitoring liquid steel level and can determine whether argon gas mixing effect meets technique and require automatically.
Description
Technical field
The utility model relates to the steel ladle bottom argon blowing field of external refining, especially a kind of argon station ladle level detection dress
It sets.
Background technique
In steelmaking process, steel ladle bottom argon blowing is a kind of common secondary refining method.
Ladle is mainly made of metal shell and refractory lining, and liner is one layer of refractory brick for being close to shell.In ladle
Bottom has ventilation pipe and blowning installation, is embedded with the air brick with slit in the liner of ladle bottom.Argon gas is a kind of lazy
Property gas, it will not be chemically reacted with high-temperature molten steel.Argon gas can be blown into inside ladle through piping and by air brick.
Argon gas has stirring action for the molten steel in ladle.
Steel ladle bottom argon blowing external refining method has following benefit, and being first being capable of uniform liquid steel temperature.It is fallen from converter
The molten steel for entering ladle, the Temperature Distribution inside ladle are non-uniform.It is interior due to ladle liner heat absorption and the heat dissipation of ladle shell
Liquid steel temperature is lower near serving as a contrast, and central area temperature is higher, and ladle top and the bottom temperature is lower, and middle portion temperature is higher.It is raw in continuous casting
During production, phase liquid steel temperature is low before and after this temperature difference will lead in casting process and mid-term temperature is high, this is unfavorable for mentioning
High Inner Quality of Billet.It followed by being capable of uniform molten steel composition.For steel alloy, need to be added into ladle in tapping a large amount of
Alloy.In bottom argon blowing technology, the ingredient of molten steel can be finely adjusted, thus keep the Composition Control range of steel narrower, into
And ensure that steel performance is uniform.It is that can promote inclusion floating again.Argon gas promotes non-gold in molten steel to the stirring of molten steel
Belong to field trash collision to grow up, the argon gas bubbles of floating can absorb the gases such as the oxygen in molten steel, while adherency is suspended in molten steel
In field trash bring it into molten steel surface and absorbed by slag blanket.
The mixing effect of argon gas is generally evaluated according to molten steel bare area ratio.Molten steel bare area ratio is molten steel
The ratio of molten steel exposed part area and the liquid level gross area in liquid level.Generally experience is broken from start to end for bottom argon blowing technology process
Several stages such as top, strong mixing, weak stirring, soft blow.In strong mixing and weak agitation phases, in order to reach optimal mixing effect,
Need the flow of strict control argon gas.Argon flow will lead to greatly very much it is quick-fried blow, and flow is too small, and it is bad to will lead to stirring.The bottom of at
In gon technics regulation, molten steel bare area ratio is between a higher range (such as 30%~60%) when strong mixing, mesh
Scale value is 50%；For ratio between a lower range (such as 0.4%~4%), target value is 1.5% when weak stirring.
The detection method of currently used molten steel bare area ratio is artificial observation method.In BOTTOM ARGON BLOWING production process, behaviour
It detects by an unaided eye the liquid steel level in ladle as worker, estimates molten steel bare area ratio by rule of thumb.In process of production may
Molten steel spraying state can occur, in addition the temperature of molten steel is very high, dust is larger, this makes operator's large labor intensity, and
With certain risk.Furthermore this method cannot continuously monitor mixing effect in real time.
Utility model content
In order to solve molten steel bare area ratio inaccuracy, the operator's large labor intensity that current artificial observation method obtains
And having the problem of certain risk, the utility model provides a kind of argon station ladle liquid level sensor, comprising: Image Acquisition
Instrument and image procossing detecting instrument, Image Acquisition instrument are fixed on the top of ladle；Image Acquisition instrument and image procossing inspection
Instrument is surveyed to be connected.
Preferably, this argon station ladle liquid level sensor further include: warning instrument, warning instrument and image procossing detector
Device is connected.
The utility model provides a kind of argon station ladle liquid level sensor, passes through the received figure of image procossing detecting instrument
As the image that acquisition instrument acquires, detected, analyzed, handled and calculated, obtain molten steel bare area ratio, and with default model
It encloses and compares, to judge argon gas mixing effect；Warning instrument is controlled if molten steel bare area ratio is more than preset range to carry out
Alarm reminds production operation personnel to handle.The utility model detects liquid steel level using contactless imaging device, calculates
Molten steel bare area ratio out, structure is simple, cost is relatively low, safety is higher, can continuously real-time monitoring liquid steel level is simultaneously
It is automatic to determine whether argon gas mixing effect meets technique requirement.
Detailed description of the invention
Fig. 1 is the system knot according to a kind of argon station ladle liquid level sensor of one preferred embodiment of the utility model
Structure schematic diagram；
Fig. 2 is former according to a kind of work of argon station ladle liquid level sensor of one preferred embodiment of the utility model
Manage schematic diagram；
Fig. 3 is to be shown according to the working principle of steel ladle bottom argon blowing in a kind of argon station of one preferred embodiment of the utility model
It is intended to；
Wherein:
1. 2. image procossing detecting instrument of Image Acquisition instrument, 3. warning instrument
4. 5. ladle of liquid molten steel, 6. buggy ladle
7. 8. argon gas caisson of argon blowing control device, 41. steel slag
42. 51. shell of argon gas bubbles, 52. liner
53. 54. air brick of pedestal, 55. ladle pedestal argon gas inside pipeline
61. buggy ladle argon gas pipeline.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.With
Lower specific embodiment is not intended to limit the scope of the present invention for illustrating the utility model.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " connection "
It shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, two elements can also be also possible to indirectly connected through an intermediary
Internal connection.For the ordinary skill in the art, above-mentioned term can be understood in the utility model with concrete condition
In concrete meaning.
The mixing effect of argon gas is generally evaluated according to molten steel bare area ratio, most common molten steel exposed surface
The detection method of product ratio is artificial observation method.In BOTTOM ARGON BLOWING production process, operator detects by an unaided eye the steel in ladle
Water level estimates molten steel bare area ratio by rule of thumb.Molten steel spraying state may occur in process of production, in addition molten steel
Temperature is very high, dust is larger, this makes operator's large labor intensity, and has certain risk.Furthermore this method
Mixing effect cannot be continuously monitored in real time.
Fig. 1 is the system knot according to a kind of argon station ladle liquid level sensor of one preferred embodiment of the utility model
Structure schematic diagram, as shown in Figure 1, the utility model provides a kind of argon station ladle liquid level sensor, comprising: for acquiring ladle
The Image Acquisition instrument 1 of liquid level image and image procossing detecting instrument 2 for handling ladle liquid level image, Image Acquisition instrument
1 is connected with image procossing detecting instrument 2.
Fig. 2 is former according to a kind of work of argon station ladle liquid level sensor of one preferred embodiment of the utility model
Schematic diagram is managed, as shown in Fig. 2, Image Acquisition instrument 1 is fixed on the top of ladle 5.
Specifically, Image Acquisition instrument 1 is connected with image procossing detecting instrument 2, image procossing detecting instrument 2 and alarm
Instrument 3 is connected.Wherein image of the Image Acquisition instrument 1 for liquid steel level in continuously captured in real-time ladle 5, and be sent to
Image procossing detecting instrument 2, the image that image procossing detecting instrument 2 sends Image Acquisition instrument 1 are detected, analyzed and are located
Reason, and molten steel bare area ratio is calculated.
In order to enable Image Acquisition instrument 1 clearly to shoot the image of liquid steel level in ladle 5, Image Acquisition instrument 1
It is fixed on the top of ladle 5；In order to easy to operate and safe, generally make the liquid steel level 3- in ladle 5 of Image Acquisition instrument 1
10 meters.
Wherein, Image Acquisition instrument 1 uses thermal infrared imager or thermal camera, and image procossing detecting instrument 2 uses work
Industry controls computer.
The present embodiment detected by the image that image procossing detecting instrument 2 acquires Image Acquisition instrument 1, analyze and
Processing, and then calculates molten steel bare area ratio, instead of traditional manual inspection method, can real-time monitoring liquid steel level simultaneously
It is automatic to determine whether argon gas mixing effect meets technique requirement so that the detection process of molten steel bare area ratio it is simple and convenient,
It is high-efficient, highly-safe.
Further, Fig. 3 is according to steel ladle bottom argon blowing in a kind of argon station of one preferred embodiment of the utility model
Operation principle schematic diagram, as shown in figure 3, the wall of ladle is followed successively by liner 52 and shell 51, liner 52 and shell 51 from inside to outside
Fitting；Ladle outer bottom is fixedly connected with pedestal 53.5 inner containment of ladle has a liquid molten steel 4, liquid steel level upper layer adrift steel
Slag 41.
Based on the above embodiment, as shown in Figure 1, this argon station ladle liquid level sensor further include: warning instrument 3, alarm
Instrument 3 is connected with image procossing detecting instrument 2.
Wherein, warning instrument 3 uses combined aural and visual alarm.
Specifically, the image that image procossing detecting instrument 2 sends Image Acquisition instrument 1 is detected, analyzed and is handled
Afterwards, control warning instrument 3 is alarmed.
Based on the above embodiment, as shown in Figure 1, image procossing detecting instrument 2 receives and processes the acquisition of Image Acquisition instrument 1
The obtained information of image, comprising: molten steel bare area ratio.
Specifically, Image Acquisition instrument 1 is installed on the top of ladle 5 continuously to shoot the liquid steel level inside ladle 5,
And it is sent to image procossing detecting instrument 2, the image that image procossing detecting instrument 2 is acquired according to Image Acquisition instrument 1, identification is simultaneously
Molten steel exposed part area and the liquid level gross area are calculated, molten steel exposed part area and the liquid level gross area are divided by, steel is obtained
Water bare area ratio.
Based on the above embodiment, as shown in Figure 1, being stored with molten steel bare area ratio in image procossing detecting instrument 2
Preset range, preset range include: strong mixing preset range and weak stirring preset range.
Generally, bottom argon blowing technology process generally undergoes broken top, strong mixing, weak stirring, soft blow etc. several from start to end
A stage.The flow of strict control argon gas is needed in strong mixing and weak agitation phases in order to reach optimal mixing effect.Argon
Throughput will lead to greatly very much it is quick-fried blow, and flow is too small, and it is bad to will lead to stirring.In bottom argon blowing technology regulation, steel when strong mixing
For water bare area ratio between a higher range (such as 30%~60%), target value is 50%；Molten steel is naked when weak stirring
Reveal area ratio between a lower range (such as 0.4%~4%), target value is 1.5%.
Specifically, the present embodiment is to reach optimal mixing effect, preset range when strong mixing is set as 30%~
60%, when molten steel bare area ratio is lower than 30%, or is higher than 60%, image procossing detecting instrument 2 triggers warning instrument 3
Alarm is issued, production operation personnel is reminded to handle, allows molten steel bare area ratio close to 50% as far as possible；When by weak stirring
Preset range is set as 0.4%~4%, when molten steel bare area ratio is lower than 0.4%, or is higher than 4%, image procossing detection
Instrument 2 triggers warning instrument 3 and issues alarm, and production operation personnel is reminded to handle；Allow molten steel bare area ratio as far as possible
Close to 1.5%.
Based on the above embodiment, Fig. 2 is a kind of argon station ladle liquid level according to one preferred embodiment of the utility model
The operation principle schematic diagram of detection device, Fig. 3 are according to ladle in a kind of argon station of one preferred embodiment of the utility model
The operation principle schematic diagram of BOTTOM ARGON BLOWING accommodates liquid molten steel 4, on the liquid level of liquid molten steel 4 as shown in Figures 2 and 3 in ladle 5
Adrift Slag Layer 41.Buggy ladle argon gas pipeline 61 and ladle pedestal argon gas inside pipeline 55 are set to the lower section of ladle 5；Buggy ladle
Argon gas pipeline 61 is connected to ladle pedestal argon gas inside pipeline 55, ladle pedestal argon gas inside pipeline 55 be connected to inside ladle 5；
Argon gas caisson 8 passes sequentially through buggy ladle argon gas pipeline 61 and ladle pedestal argon gas inside pipeline 55, and connects inside ladle 5
It is logical；Ladle 5 is placed on the sweep of buggy ladle 6 by pedestal 53.Buggy ladle argon gas pipeline 61 and ladle pedestal argon gas inside pipe
Road 55 is embedded in ladle pedestal 53, for fixing buggy ladle argon gas pipeline 61 and ladle pedestal argon gas inside pipeline 55.
Further, argon blowing control device 7 is set to the buggy ladle argon gas pipeline 61 between ladle 5 and argon gas caisson 8
In, argon blowing control device 7 is connected with image procossing detecting instrument 2.Image procossing and detecting instrument 2 are exposed by molten steel in real time
The ratio of area is sent to argon blowing control device 7, and argon blowing control device 7 suitably adjusts the flow for the argon gas being blown into ladle 5.
When argon gas stirring, under the control of argon blowing control device 7, argon gas is from argon gas caisson 8 along 61 He of buggy ladle argon gas pipeline
The argon gas pipeline 55 of ladle chassis interior is passed through in the liquid molten steel 4 inside ladle 5.When the ratio of molten steel bare area is more than pre-
If when range, i.e. judgement argon stream flow is undesirable, image procossing and detecting instrument 2 trigger warning instrument 3 and issue report
It is alert, remind production operation personnel to handle.
Wherein, as shown in figure 3, argon gas reaches ladle 5 through buggy ladle argon gas pipeline 61, ladle pedestal argon gas inside pipeline 55
The air brick 54 of bottom is blown into the liquid molten steel 4 inside ladle 5 by the slit in air brick 54, forms argon gas bubbles 42,
Argon gas bubbles 42 gradually float in liquid molten steel 4, and the argon gas in liquid molten steel 4 gets into the air finally through Slag Layer 41.
When in argon stream very little or not being blown into argon gas into ladle 5, Slag Layer 41 is in stable state, and molten steel is exposed
Area ratio will not change.When the argon stream being blown into inside ladle 5 is larger, argon gas bubbles 42 are to liquid molten steel 4
Stirring action is stronger, and molten steel exposed part area is caused to increase；And when the argon stream being blown into inside ladle 5 is smaller, argon gas
Bubble 42 is weaker to the stirring action of liquid molten steel 4, and molten steel exposed part area is caused to reduce.
The utility model provides a kind of argon station ladle liquid level sensor, passes through the received figure of image procossing detecting instrument
As the image that acquisition instrument acquires, detected, analyzed, handled and calculated, obtain molten steel bare area ratio, and with default model
It encloses and compares, to judge argon gas mixing effect；Warning instrument is controlled if molten steel bare area ratio is more than preset range to carry out
Alarm reminds production operation personnel to handle.The utility model detects liquid steel level using contactless imaging device, calculates
Molten steel bare area ratio out, structure is simple, cost is relatively low, safety is higher, can continuously real-time monitoring liquid steel level is simultaneously
It is automatic to determine whether argon gas mixing effect meets technique requirement.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (2)
1. a kind of argon station ladle liquid level sensor characterized by comprising Image Acquisition instrument and image procossing detector
Device, described image acquisition instrument are fixed on the top of ladle；Described image acquisition instrument and described image processing detection instrument phase
Connection；
It further include buggy ladle argon gas pipeline and ladle pedestal argon gas inside pipeline, in the buggy ladle argon gas pipeline and ladle pedestal
Portion's argon gas pipeline is set to the lower section of ladle；One end of the buggy ladle argon gas pipeline and the ladle pedestal argon gas inside pipeline hang down
It is direct-connected logical, it is connected to inside the other end of the ladle pedestal argon gas inside pipeline and the ladle；The buggy ladle argon gas pipeline
One end and the ladle pedestal argon gas inside pipeline be embedded in the pedestal；
Further include: Argon station argon gas caisson, the Argon station argon gas caisson and the buggy ladle argon gas pipeline it is another
One end connection；
Argon blowing control device is equipped in the buggy ladle argon gas pipeline；The argon blowing control device is set to the ladle and described blows
Between argon station argon gas caisson, described image processing detection instrument and being connected with the argon blowing control device with it is described
Buggy ladle argon gas piping connection.
2. a kind of argon station ladle liquid level sensor according to claim 1, which is characterized in that further include: warning instrument,
The warning instrument is connected with described image processing detection instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201820387308.XU CN208313386U (en) | 2018-03-21 | 2018-03-21 | A kind of argon station ladle liquid level sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820387308.XU CN208313386U (en) | 2018-03-21 | 2018-03-21 | A kind of argon station ladle liquid level sensor |
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| CN208313386U true CN208313386U (en) | 2019-01-01 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109852765A (en) * | 2019-03-29 | 2019-06-07 | 山东钢铁集团日照有限公司 | A kind of steel ladle intelligent control method for bottom-blowing argon |
| CN110413013A (en) * | 2019-07-18 | 2019-11-05 | 莱芜钢铁集团电子有限公司 | A kind of intelligence argon blowing system and its control method |
| CN111399551A (en) * | 2020-04-24 | 2020-07-10 | 深圳大成智能电气科技有限公司 | Steel ladle bottom blowing intelligent control device and method |
| CN111679622A (en) * | 2019-03-11 | 2020-09-18 | 上海梅山钢铁股份有限公司 | Device and method for regulating and controlling argon flow of bottom blowing of steel ladle |
| CN115404308A (en) * | 2022-08-23 | 2022-11-29 | 武汉钢铁有限公司 | Automatic argon control method, system and equipment for secondary refining |
-
2018
- 2018-03-21 CN CN201820387308.XU patent/CN208313386U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111679622A (en) * | 2019-03-11 | 2020-09-18 | 上海梅山钢铁股份有限公司 | Device and method for regulating and controlling argon flow of bottom blowing of steel ladle |
| CN111679622B (en) * | 2019-03-11 | 2023-08-15 | 上海梅山钢铁股份有限公司 | Device and method for regulating and controlling flow of ladle bottom blowing argon |
| CN109852765A (en) * | 2019-03-29 | 2019-06-07 | 山东钢铁集团日照有限公司 | A kind of steel ladle intelligent control method for bottom-blowing argon |
| CN110413013A (en) * | 2019-07-18 | 2019-11-05 | 莱芜钢铁集团电子有限公司 | A kind of intelligence argon blowing system and its control method |
| CN110413013B (en) * | 2019-07-18 | 2023-10-27 | 莱芜钢铁集团电子有限公司 | Intelligent argon blowing system and control method thereof |
| CN111399551A (en) * | 2020-04-24 | 2020-07-10 | 深圳大成智能电气科技有限公司 | Steel ladle bottom blowing intelligent control device and method |
| CN115404308A (en) * | 2022-08-23 | 2022-11-29 | 武汉钢铁有限公司 | Automatic argon control method, system and equipment for secondary refining |
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