CN1128354C - Sensor for obtaining scoria flow-out signal during steel ladle casting - Google Patents
Sensor for obtaining scoria flow-out signal during steel ladle casting Download PDFInfo
- Publication number
- CN1128354C CN1128354C CN 01139019 CN01139019A CN1128354C CN 1128354 C CN1128354 C CN 1128354C CN 01139019 CN01139019 CN 01139019 CN 01139019 A CN01139019 A CN 01139019A CN 1128354 C CN1128354 C CN 1128354C
- Authority
- CN
- China
- Prior art keywords
- sensor
- spiral coil
- present
- ladle
- circular ring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 17
- 239000010959 steel Substances 0.000 title claims abstract description 17
- 238000005266 casting Methods 0.000 title claims abstract description 7
- 241000876852 Scorias Species 0.000 title description 5
- 239000002893 slag Substances 0.000 claims abstract description 14
- 239000004927 clay Substances 0.000 claims abstract description 5
- 239000012774 insulation material Substances 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 abstract description 9
- 239000011810 insulating material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000010079 rubber tapping Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000036039 immunity Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
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- Investigating And Analyzing Materials By Characteristic Methods (AREA)
Abstract
The present invention discloses a sensor for obtaining slag flow-out signals in a steel casting process of a ladle. A spiral coil sheathed in an insulating magnetic tube is wound in a slot of an H-shaped circular ring framework, the circumference of the spiral coil is filled with thermal insulating materials, and finally, refractory clay is filled in the slot of an H-shaped circular ring framework; after being dried, the refractory clay is integrally formed. After being welded in the H-shaped circular ring framework, a double-core high-temperature cable and one thread end of the spiral coil penetrate out, and are connected with a connector box arranged on a ladle casing. The sensor of the present invention only comprises one spiral coil, and the spiral coil only comprises two lead-out wires, which is the minimum of the spiral coil; thus, the present invention has simple structure and low cost. Because the sensor of the present invention has simple structure, the good detection performance of the present invention is realized by a circuit technique of a matched detection device. The present invention can also be applied to the automatic detection and the control of the steel discharge and the slag block of all metallurgical containers.
Description
Technical field
The present invention relates to pick-up unit, especially relate to and be used for the sensor that casting steel with ladle obtains scoria flow-out signal.
Background technology
In the prior art field, the sensor of applying detection coil and drive coil coupling, or the sensor of application tapped coil, flow out detection though can realize slag, but because of its sensor all is multi-thread drawing more than two, and the stainless steel shielding, inevitable cost is higher.Consider that sensor is a kind of consumption goods and materials, simple in structure, with low cost, functional is extremely necessary.
Summary of the invention
The objective of the invention is to design a kind of spiral winding that only comprises, its extension line only is the sensor that obtains scoria flow-out signal among two, simple in structure, casting steel with ladle that cost is low.
The technical solution used in the present invention is: in I-shaped annulus skeleton grooves, be wound with the spiral coil of overcoat insulation magnetic tube, be filled with thermal insulation material around the spiral coil, thermal insulation material in the I-shaped annulus skeleton grooves is filled with fire clay outward, is contained in the outer twin-core high-temperature cable of sensor and is connected in I-shaped annulus skeleton with the end of a thread of spiral coil.
The beneficial effect that the present invention has is: sensor of the present invention only comprises a spiral winding, and its extension line only is MIN two, and is therefore simple in structure, with low cost.Because sensor of the present invention has corresponding supporting pick-up unit, its good detection performance is realized by the pick-up unit circuit engineering.Because lead-in wire only is two, has also simplified the structural requirement and the corresponding cost input of high temperature terminal box and high temperature connector.The present invention can also be applied to the automatic Detection ﹠ Controling of all metallurgical tank tapping pushing off the slag.
Description of drawings
Fig. 1 is a structure principle chart of the present invention;
Fig. 2 is a vertical view of the present invention;
Fig. 3 is the interconnector figure of the present invention and connector box.
Embodiment
Fig. 1 is a structure principle chart of the present invention.Sensor skeleton 4 is made by the anti-material of high-quality, its shape is an I-shaped annulus, coiling spiral coil 3 in I-shaped groove, winding wire puts insulation magnetic tube 5, filling heat insulator 2 around it, insert fire clay 1 in the remaining I-shaped groove, twin-core high-temperature cable 6 is imbedded in the skeleton 4 in advance, and whole then oven dry is shaped.
Finished product sensor profile is an annulus of anti-the material, as shown in Figure 2.Twin-core high-temperature cable 6 passes after skeleton 4 interior welds with the end of a thread of coil 3.Sensor is installed in ladle tapping hole position, and the connector box 7 on high-temperature cable 6 passes the ladle housing and is contained in the ladle housing is connected.
Fig. 3 is the interconnector figure of connector box 7.The opposite side of connector box 7 is equipped with high temperature connector socket 8, inserts the cable connector plug of pick-up unit, and sensor and pick-up unit are fused.
The sensor of said structure is a current vortex type sensor by principle of work.The molten steel of its central passage or the conductance of slag differ about 10 owing to flow through
4Doubly, in steel ladle casting latter stage, when the molten steel in the passage sandwiches slag (being that slag begins to flow out from ladle), can cause weakening of eddy current effect in the channel conductor, thereby cause the sensor impedance variation.Because sensor is by constant current excitation, this moment, sensor side voltage changed, and this just detects scoria flow-out signal.By pick-up unit with sensor to feeble signal become down slag after handling, amplifying and report to the police and close the drive signal of steel ladle sliding water gap, thereby reach the purpose that early stage slag down detected, closed automatically bag.
When the ladle that sensor of the present invention is housed arrive water the steel position open water after, the pick-up unit cable plug is inserted sensor socket on the ladle shell.Then, make pick-up unit enter detected state, sensor is promptly started working.To watering steel latter stage, in case slag flows out from ladle, sensor had both detected down the slag signal, and this signal installs processing after testing, is amplified to enough big amplitude, was used for driving the warning of pick-up unit and closed the topworks of steel ladle sliding water gap, finished to water steel.Pull up from ladle with the cable plug that is about to pick-up unit, empty ladle is left away, and waits for that the steel operation of watering of ladle reaches slag detection down next time.Because sensor of the present invention and the design of pick-up unit one, though it is simple in structure, with low cost, still obtain good effect, have the characteristic that in steel mill's site environment, is not subjected to dynamo-electric interference (strong interference immunity), can detects early stage slag (highly sensitive) down and repeated detection good reproducibility (accuracy is good).
Claims (1)
1. be used for the sensor that casting steel with ladle obtains the molten slag flow-out signal, it is characterized in that: in I-shaped annulus skeleton [4] groove, be wound with the spiral coil [3] of overcoat insulation magnetic tube [5], be filled with thermal insulation material [2] around the spiral coil [3], thermal insulation material [2] in I-shaped annulus skeleton [4] groove is outer to be filled with fire clay [1], is contained in the outer twin-core high-temperature cable [6] of sensor and is connected in I-shaped annulus skeleton [4] with the end of a thread of spiral coil [3].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139019 CN1128354C (en) | 2001-11-29 | 2001-11-29 | Sensor for obtaining scoria flow-out signal during steel ladle casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01139019 CN1128354C (en) | 2001-11-29 | 2001-11-29 | Sensor for obtaining scoria flow-out signal during steel ladle casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1349095A CN1349095A (en) | 2002-05-15 |
| CN1128354C true CN1128354C (en) | 2003-11-19 |
Family
ID=4674950
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01139019 Expired - Fee Related CN1128354C (en) | 2001-11-29 | 2001-11-29 | Sensor for obtaining scoria flow-out signal during steel ladle casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1128354C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1384997B1 (en) * | 2002-07-25 | 2004-09-29 | Amepa Angewandte Messtechnik Und Prozessautomatisierung Gmbh | Method and device for processing eddy current signals |
| CN1272628C (en) * | 2003-09-17 | 2006-08-30 | 姜虹 | Device for detecting slag content of liquid metal orifice |
-
2001
- 2001-11-29 CN CN 01139019 patent/CN1128354C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1349095A (en) | 2002-05-15 |
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| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |