CN205571360U - Ladle liquid monitoring device - Google Patents
Ladle liquid monitoring device Download PDFInfo
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- CN205571360U CN205571360U CN201620343689.2U CN201620343689U CN205571360U CN 205571360 U CN205571360 U CN 205571360U CN 201620343689 U CN201620343689 U CN 201620343689U CN 205571360 U CN205571360 U CN 205571360U
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Abstract
The utility model provides a ladle liquid monitoring device, including the ladle, the ladle is built -in to have the molten steel, has the slag on the molten steel, the top of ladle is equipped with probe, lifter and PLC, the one end and the probe connection of lifter, and one end is passed through the cable electricity and is being connected PLC in addition, install displacement detection device on the lifter, displacement detection device is connected with the PLC electricity. The utility model provides a ladle liquid monitoring device and method, the electric conductivity of make full use of slag under the high temperature condition to and the different principle of slag and molten steel conductivity, ingeniously the change with the measuring current signal integrate with displacement, thereby completion detection task, the utility model discloses an automation equipment detects ladle headroom, and molten steel liquid level and slag blanket thickness in the package help accurate ladle molten steel liquid level and the slag blanket thickness isoparametric mastered, help reducing workman's operate miss and intensity of labour, help improving the automatic level of follow -up equipment and technology simultaneously.
Description
Technical field
This utility model belongs to technical field of metallurgical equipment, is specifically related to a kind of ladle level monitoring device.
Background technology
At present, at home and abroad in iron and steel enterprise molten steel ladle liquid level, thickness of slag layer, Steel ladle clearance etc. all by artificial eye estimate, but the inaccuracy due to artificial range estimation, the blindness of many is brought to subsequent smelting operation, the follow-up operation setting technique just can must complete by manually adjusting operation, causes the biggest obstacle to realizing steelmaking process Automated condtrol.
Can accurately grasp the liquid level of molten steel ladle and the thickness of slag blanket as long as visible, it becomes possible to accurately judge the quantity of slag impact on smelting process, intervene correction in time, it helps achieve steelmaking process Automated condtrol, reduce manual operation.
Utility model content
The purpose of this utility model is to solve current ladle liquid level and thickness of slag layer to be known, to realizing the problem that steelmaking process Automated condtrol causes the biggest obstacle by artificial range estimation.
To this end, this utility model provides a kind of ladle level monitoring device, including ladle, ladle is built-in with molten steel, and molten steel has slag, described ladle be arranged over probe, elevating lever and PLC, one end of elevating lever is connected with probe, and other end electrically connect PLC by cable；
Being provided with displacement detector on described elevating lever, displacement detector electrically connects with PLC.
Institute's displacement sensing device is displacement transducer, and displacement transducer electrically connects with PLC.
Institute's displacement sensing device is laser range finder, and laser range finder electrically connects with PLC.
Described probe includes at least two electrodes.
Described probe is made up of two electrodes.
The beneficial effects of the utility model: this ladle level monitoring device of this utility model offer and method, make full use of slag electric conductivity under the high temperature conditions, and the principle that slag is different from molten steel electrical conductivity, dexterously the change of sensed current signal is connected with change in displacement, thus complete Detection task；This utility model detects Steel ladle clearance height by automation equipment, molten steel liquid level and thickness of slag layer in bag, contribute to accurately grasping the parameters such as ladle molten steel liquid level and thickness of slag layer, contribute to reducing operative's error and labor intensity, concurrently facilitate raising follow-up equipment and the automatization level of technique.
Below with reference to accompanying drawing, this utility model is described in further details.
Accompanying drawing explanation
Fig. 1 is the structural representation of ladle level monitoring device.
Description of reference numerals: 1, elevating lever；2, probe；3, ladle；4, molten steel；5, slag；6, cable；7、PLC；8, displacement detector.
Detailed description of the invention
Embodiment 1:
For current enterprise ladle liquid level and thickness of slag layer all by the present situation of artificial range estimation, present embodiments provide a kind of ladle level monitoring device, including ladle 3, ladle 3 is built-in with molten steel 4, slag 5 is had on molten steel 4, being arranged over of described ladle 3 pops one's head in 2, elevating lever 1 and PLC7, and one end of elevating lever 1 is connected with probe 2, and other end is passed through cable 6 and be electrically connect PLC7；
Being provided with displacement detector 8 on described elevating lever 1, displacement detector 8 electrically connects with PLC7.
Principle of the present utility model is that slag has electric conductivity under the high temperature conditions, but its most discrepant principle of electrical conductivity with molten steel.Can form current loop after probe 2 contacts with slag 5 and molten steel 4 during declining, PLC7 detects record and process data when current signal changes, and completes detection.
Structural principle of the present utility model signal, as it is shown in figure 1, use probe 2 for sensed current signal in figure, uses elevating lever 1 to be used for driving probe to move up and down and detecting movement travel, uses PLC7 to control elevating lever 1 and move up and down and record and process data.Wherein, probe 2 is end to end with elevating lever 1, is positioned at above ladle 3, and is connected with PLC7 by cable 6.
In actual use, with ladle height HLadleWith reserved safe distance HSafetyOn the basis of, with the elevating lever 1 stroke S of displacement detector real time reaction as basis.Specific algorithm is as follows:
When elevating lever 1 moves downward, when stroke S is equal to HSafetyTime, it is believed that edge on probe 2 arrival ladle 3, PLC7 records data.
When elevating lever 1 continues to decline, and when probe 2 touches slag 5, PLC7 receives current signal, and the stroke S, PLC7 that record now elevating lever 1 are calculated Steel ladle clearance height H by formula 1Headroom,
HHeadroom=S-HSafety
Formula 1
When elevating lever 1 continues to decline, and when probe 2 touches molten steel 4, the current signal that PLC7 receives can suddenly change, and the stroke S, PLC7 that record now elevating lever 1 are calculated thickness of slag layer H by formula 2Slag blanket, PLC7 is calculated molten steel ladle height H by formula 3 simultaneouslyMolten steel。
HSlag blanket=S-HSafety- HHeadroomFormula 2
HMolten steel=HLadle-HSafety- HHeadroom
Formula 3
When PLC7 obtains molten steel ladle height HMolten steelWith thickness of slag layer HSlag blanketTime, PLC7 can obtain the volume V of molten steel respectively by calculatingMolten steelVolume V with slagSlag, bring molten steel density p respectively intoMolten steelWith slag density pSlag, just can accurately obtain the mass M of molten steelMolten steelMass M with slagSlag。
It should be noted that molten steel density pMolten steelWith slag density pSlagIt is all known parameter, the volume V of molten steelMolten steelVolume V with slagSlag, PLC7 can be obtained by volume computing formula according to the shape of ladle.
The work process of the ladle level monitoring device that the present embodiment provides is: step one, probe 2, elevating lever 1 and PLC7 is sequentially connected electrically, and probe 2 is positioned over the top of ladle 3, measures elevating lever 1 vertical dimension on edge on ladle 3, is recorded as HSafety, record the height H of ladle 3 simultaneouslyLadle；
Step 2, PLC7 controls elevating lever 1 and drives probe 2 to move downward, and displacement detector 8 records the stroke S of elevating lever 1, when elevating lever 1 moves downwardly to S=HSafetyTime, PLC7 is calculated Steel ladle clearance height H by below equationHeadroom,
HHeadroom=S-HSafety
When elevating lever 1 continues to decline, and when probe 2 touches molten steel 4, PLC7 is calculated thickness of slag layer H by below equationSlag blanketWith molten steel height HMolten steel,
HSlag blanket=S-HSafety- HHeadroom
HMolten steel=HLadle-HSafety- HHeadroom；
Step 3, according to thickness of slag layer HSlag blanketWith molten steel height HMolten steel, PLC7 would know that the volume V of molten steelMolten steelVolume V with slagSlag, below equation it is calculated the mass M of molten steelMolten steelMass M with slagSlag,
MMolten steel=ρMolten steel·VMolten steel
MSlag=ρSlag·VSlag。
This ladle level monitoring device of this utility model offer and method, make full use of slag electric conductivity under the high temperature conditions, and the principle that slag is different from molten steel electrical conductivity, dexterously the change of sensed current signal is connected with change in displacement, thus complete Detection task；This utility model detects Steel ladle clearance height by automation equipment, molten steel liquid level and thickness of slag layer in bag, contribute to accurately grasping the parameters such as ladle molten steel liquid level and thickness of slag layer, contribute to reducing operative's error and labor intensity, concurrently facilitate raising follow-up equipment and the automatization level of technique.
Embodiment 2:
For current enterprise ladle liquid level and thickness of slag layer all by the present situation of artificial range estimation, present embodiments provide a kind of ladle level monitoring device, including ladle 3, ladle 3 is built-in with molten steel 4, slag 5 is had on molten steel 4, being arranged over of described ladle 3 pops one's head in 2, elevating lever 1 and PLC7, and one end of elevating lever 1 is connected with probe 2, and other end is passed through cable 6 and be electrically connect PLC7；
Being provided with displacement detector 8 on described elevating lever 1, displacement detector 8 electrically connects with PLC7.Institute's displacement sensing device 8 is displacement transducer, and displacement transducer electrically connects with PLC7.
Embodiment 3:
For current enterprise ladle liquid level and thickness of slag layer all by the present situation of artificial range estimation, present embodiments provide a kind of ladle level monitoring device, including ladle 3, ladle 3 is built-in with molten steel 4, slag 5 is had on molten steel 4, being arranged over of described ladle 3 pops one's head in 2, elevating lever 1 and PLC7, and one end of elevating lever 1 is connected with probe 2, and other end is passed through cable 6 and be electrically connect PLC7；
Being provided with displacement detector 8 on described elevating lever 1, displacement detector 8 electrically connects with PLC7.Institute's displacement sensing device 8 is laser range finder, and laser range finder electrically connects with PLC7.
Embodiment 4:
For current enterprise ladle liquid level and thickness of slag layer all by the present situation of artificial range estimation, present embodiments provide a kind of ladle level monitoring device, including ladle 3, ladle 3 is built-in with molten steel 4, slag 5 is had on molten steel 4, being arranged over of described ladle 3 pops one's head in 2, elevating lever 1 and PLC7, and one end of elevating lever 1 is connected with probe 2, and other end is passed through cable 6 and be electrically connect PLC7；
Being provided with displacement detector 8 on described elevating lever 1, displacement detector 8 electrically connects with PLC7.Described probe 2 includes at least two electrodes, it is possible to ensure the transmission of current signal.
Embodiment 5:
On the basis of embodiment 1, as it is shown in figure 1, as preferably, described probe 2 is made up of two electrodes.
A kind of ladle level monitoring method, comprises the steps:
Step one, is sequentially connected electrically probe 2, elevating lever 1 and PLC7, and probe 2 is positioned over the top of ladle 3, measures elevating lever 1 vertical dimension on edge on ladle 3, is recorded as HSafety, record the height H of ladle 3 simultaneouslyLadle；
Step 2, PLC7 controls elevating lever 1 and drives probe 2 to move downward, and displacement detector 8 records the stroke S of elevating lever 1, when elevating lever 1 moves downwardly to S=HSafetyTime, PLC7 is calculated Steel ladle clearance height H by below equationHeadroom,
HHeadroom=S-HSafety
When elevating lever 1 continues to decline, and when probe 2 touches molten steel 4, PLC7 is calculated thickness of slag layer H by below equationSlag blanketWith molten steel height HMolten steel,
HSlag blanket=S-HSafety- HHeadroom
HMolten steel=HLadle-HSafety- HHeadroom；
Step 3, according to thickness of slag layer HSlag blanketWith molten steel height HMolten steel, PLC7 would know that the volume V of molten steelMolten steelVolume V with slagSlag, below equation it is calculated the mass M of molten steelMolten steelMass M with slagSlag,
MMolten steel=ρMolten steel·VMolten steel
MSlag=ρSlag·VSlag。
This ladle level monitoring device of this utility model offer and method, make full use of slag electric conductivity under the high temperature conditions, and the principle that slag is different from molten steel electrical conductivity, dexterously the change of sensed current signal is connected with change in displacement, thus complete Detection task；This utility model detects Steel ladle clearance height by automation equipment, molten steel liquid level and thickness of slag layer in bag, contribute to accurately grasping the parameters such as ladle molten steel liquid level and thickness of slag layer, contribute to reducing operative's error and labor intensity, concurrently facilitate raising follow-up equipment and the automatization level of technique.
This ladle level monitoring device of this utility model offer and method, make full use of slag electric conductivity under the high temperature conditions, and the principle that slag is different from molten steel electrical conductivity, dexterously the change of sensed current signal is connected with change in displacement, thus complete Detection task；This utility model detects Steel ladle clearance height by automation equipment, molten steel liquid level and thickness of slag layer in bag, contribute to accurately grasping the parameters such as ladle molten steel liquid level and thickness of slag layer, contribute to reducing operative's error and labor intensity, concurrently facilitate raising follow-up equipment and the automatization level of technique.
Exemplified as above is only to illustration of the present utility model, is not intended that the restriction to protection domain of the present utility model, within the every and same or analogous design of this utility model belongs to protection domain of the present utility model.Parts that the present embodiment describes the most in detail and structure belong to the well-known components of the industry and common structure or conventional means, describe the most one by one.
Claims (5)
1. a ladle level monitoring device, including ladle (3), ladle (3) is built-in with molten steel (4), slag (5) is had on molten steel (4), it is characterized in that: described ladle (3) be arranged over pop one's head in (2), elevating lever (1) and PLC(7), one end of elevating lever (1) is connected with probe (2), and other end electrically connect PLC(7 by cable (6))；
Displacement detector (8), displacement detector (8) and PLC(7 are installed on described elevating lever (1)) electrically connect.
2. ladle level monitoring device as claimed in claim 1, it is characterised in that: institute's displacement sensing device (8) is displacement transducer, displacement transducer and PLC(7) electrically connect.
3. ladle level monitoring device as claimed in claim 1, it is characterised in that: institute's displacement sensing device (8) is laser range finder, laser range finder and PLC(7) electrically connect.
4. ladle level monitoring device as claimed in claim 1, it is characterised in that: described probe (2) includes at least two electrodes.
5. ladle level monitoring device as claimed in claim 1, it is characterised in that: described probe (2) is made up of two electrodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620343689.2U CN205571360U (en) | 2016-04-22 | 2016-04-22 | Ladle liquid monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620343689.2U CN205571360U (en) | 2016-04-22 | 2016-04-22 | Ladle liquid monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728670A (en) * | 2016-04-22 | 2016-07-06 | 中国重型机械研究院股份公司 | Steel ladle liquid level monitoring system and method |
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- 2016-04-22 CN CN201620343689.2U patent/CN205571360U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105728670A (en) * | 2016-04-22 | 2016-07-06 | 中国重型机械研究院股份公司 | Steel ladle liquid level monitoring system and method |
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