CN202762982U - Device capable of measuring wave shape of molten steel liquid level and thickness of slag powder liquid slag layer - Google Patents
Device capable of measuring wave shape of molten steel liquid level and thickness of slag powder liquid slag layer Download PDFInfo
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- CN202762982U CN202762982U CN 201220421488 CN201220421488U CN202762982U CN 202762982 U CN202762982 U CN 202762982U CN 201220421488 CN201220421488 CN 201220421488 CN 201220421488 U CN201220421488 U CN 201220421488U CN 202762982 U CN202762982 U CN 202762982U
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Abstract
Disclosed is a device capable of measuring a wave shape of a molten steel liquid level and a thickness of a slag powder liquid slag layer. The utility model belongs to the technical field of metal continuous casting. The device comprises two metal pipes with a handle and a plurality of grooves, two metal pipes, and an iron block, wherein the middle portion of the metal pipes are provided with grooves. Main principle of a detecting process includes that different colors of a slag power layer, a liquid slag layer, and a sinter layer are utilized for be distinguished to measure. The metal pipe with the plurality of grooves can be applied to correlation measurement in the condition that casting blanks with different cross section sizes are produced. The device has the advantages of being capable of reflecting liquid level wave conditions of the molten steel inside a crystallizer, measuring the thickness of the slag powder liquid slag layer very precisely, satisfying developing demands of advanced continuous casting technology, and beneficial for guaranteeing casting blank quality.
Description
Technical field
The utility model belongs to metal continuous casting technology field, and liquid steel level waveform and covering slag liquid slag layer thickness detection apparatus in a kind of continuous cast mold are provided.
Background technology
Liquid level fluctuation of crystallizer not only affects the stable of continuous casting production, also can produce a very large impact slab quality.The Free Surface fluctuation is too violent, then can produce the defectives such as slag; The Free Surface fluctuation is too tranquil, and slag is difficult for playing slag absorbing and lubricates the effect of grade.Stable molten steel flow field is conducive to form uniform slag film on the initial solidification shell surface in the crystallizer, creates good lubricating condition, prevents bonding and bleed-out; Pit, the transverse crack that can effectively avoid slag, surface ruffle and cause thus guarantee cc billet surface quality.And covering slag is very important key material in the continuous casting production process, mainly contains adiabatic heat-insulation, lubricates, prevents secondary oxidation of steel, the effect such as absorb inclusion thing.Covering slag liquid slag layer thickness is to weigh the major criterion whether covering slag performance and consumption mate with steel grade and relevant casting parameters, and liquid slag layer is too thin, easily causes sticking together between solidified shell and the crystallizer wall, in the time of seriously even generation bleed-out phenomenon; Liquid slag layer is too thick, can cause the meniscus melt cinder to flow into the base shell and block with passage between the copper wall, melt cinder can not be flowed into smoothly and does not reach lubricated action effect such as grade.Therefore, the stability of crystallization control device liquid fluctuating and suitable liquid slag layer thickness are the important means that guarantees slab quality in continuous casting production process.
At present less about the measuring method of molten steel in mold liquid level waveform; such as " device and method of a kind of measuring and protecting slag thickness and liquid level fluctuation of molten steel " (application number 200810011985.2); the main multiple spot detection method that adopts, the method can not reflect the liquid steel level waveform in the actual production process comprehensively.On the other hand; the method of aborning liquid slag layer thickness being measured at present is mainly single-point method; such as " a kind of testing tool of crystallizer protecting residue and detection method thereof " (application number 200410089438.8); the method measuring position more at random; be affected by human factors larger; detection position and probe angle all can produce larger impact to the result, and may obtain error result when liquid slag layer is in uneven thickness, and it is very unfavorable that assurance continuous casting production stable carried out.
For the demand for development that satisfies advanced continuous casting technology and guarantee the quality of strand, to the liquid fluctuating of molten steel in mold carry out complete, comprehensive detection research, Measurement accuracy covering slag liquid slag layer thickness is the critical problem that must solve in the continuous casting production process.
The utility model content
In order to reach the purpose of the liquid fluctuating of molten steel in mold being carried out complete, comprehensive detection research, Measurement accuracy covering slag liquid slag layer thickness.
The utility model mainly provides a kind of device of measuring liquid steel level waveform and covering slag liquid slag layer thickness, and this device comprises that 2 metal tubes with handles, 2 middle parts are with metal tube and 1 iron plate of groove; Every metal tube with handles comprises one or more pairs of grooves and a handles, and the middle part is with 1 groove in metal tube middle part of groove; Each middle part is positioned in the groove of 2 metal tubes with handles with the metal tube of groove, and iron plate is positioned in 2 central slot of middle part with the metal tube of groove; This device is positioned over the continuous cast mold mouth of a river one side, so that iron plate is inserted the steel underwater along crystallizer leptoprosopy central vertical ground.
The height of described iron plate is 100-300mm, and thickness is 4～6mm.
The metal tube material can be the steel pipe of satisfying the demand etc.
Advantage of the present utility model is liquid fluctuating situation and the covering slag liquid slag layer thickness that measures with considerable accuracy out that can complete reflection molten steel in mold.
Description of drawings
Fig. 1 is the top view of the utility model device
Fig. 2 is the left view of iron plate
Among the figure: the rectangular metal pipe I that 1-is with handles; 2-groove I; The 3-handle; The 4-middle part is with the rectangular metal pipe II of groove; 5-groove II; 6-iron plate.
The specific embodiment
Referring to Fig. 1, Fig. 2, liquid steel level waveform and covering slag liquid slag layer thickness detection apparatus in a kind of continuous cast mold are comprised of with rectangular metal pipe and the iron plate of groove rectangular metal pipe, the middle part of with handles and a plurality of grooves; The height that the metal tube of a plurality of grooves can be applicable to produce the measurement of correlation iron plate under the strand condition of different section size for its insert the subsurface degree of depth of steel and molten steel face to the crystallizer end face apart from sum.
Measure the principle of liquid slag layer thickness
Be mainly the thermograde of utilizing the covering slag three-decker to form, melt at the position that the iron plate of inserting covering slag is contacted with molten steel; Melt cinder hangs on the iron plate, and this position is obviously brighter; Can be because carbon be hung superincumbent effect and blackening in the process of iron plate insertion covering slag sinter layer; According to the difference of three layers of color etc., the operator can accurately measure the thickness of slag layer, liquid slag layer, sinter layer.
Implementation method of the present utility model: will install a side that is placed on stably mold gap, so that iron plate is inserted the steel underwater along crystallizer leptoprosopy central vertical ground, insertion depth is 50-200mm, and the insertion time is about 10s, after the iron plate that is inserted into molten steel is melted fully, take out measuring tool.With the length at the upper shinny position of ruler measurement iron plate, the many groups of survey are averaged and are liquid slag layer thickness.The liquid slag layer structure copied out by actual measurement figure get final product to get the liquid level oscillogram.
Example 1
With this device mold liquid level waveform and covering slag thickness in certain steel grade continuous casting production process are measured; when the 2nd stream the first bag cast one half; device is placed on stably a side of mold gap; so that iron plate is inserted the steel underwater along crystallizer leptoprosopy central vertical ground; insertion depth is 60mm; the insertion time is 10s, after the iron plate that is inserted into molten steel is melted fully, reposefully iron plate is up lifted from molten steel.After iron plate is fully cooled off, slag is struck from iron plate, with the length at the upper shinny position of ruler measurement iron plate, survey 10 groups and be averaged and be worth liquid slag layer thickness to be about 5mm.Gained iron plate is added the preservation of taking pictures behind the scale, the row photo is copied namely got the liquid level oscillogram on computers.
Example 2
With this device mold liquid level waveform and covering slag thickness in certain steel grade continuous casting production process are measured; when the 1st stream three guarantees are poured into a mould fast when complete; device is placed on stably a side of mold gap; so that iron plate is inserted the steel underwater along crystallizer leptoprosopy central vertical ground; insertion depth is 60mm; the insertion time is 10s, after the iron plate that is inserted into molten steel is melted fully, reposefully iron plate is up lifted from molten steel.After iron plate is fully cooled off, slag is struck from iron plate, with the length at the upper shinny position of ruler measurement iron plate, survey 10 groups and be averaged and be worth liquid slag layer thickness to be about 7mm.Gained iron plate is added the preservation of taking pictures behind the scale, the row photo is copied namely got the liquid level oscillogram on computers.
Claims (2)
1. device of measuring liquid steel level waveform and covering slag liquid slag layer thickness is characterized in that: this device comprises that 2 metal tubes with handles, 2 middle parts are with metal tube and 1 iron plate of groove; Every metal tube with handles comprises one or more pairs of grooves and a handles, and the middle part is with 1 groove in metal tube middle part of groove; Each middle part is positioned in the groove of 2 metal tubes with handles with the metal tube of groove, and iron plate is positioned in 2 central slot of middle part with the metal tube of groove; This device is positioned over the continuous cast mold mouth of a river one side, so that iron plate is inserted the steel underwater along crystallizer leptoprosopy central vertical ground.
2. the device of measurement liquid steel level waveform as claimed in claim 1 and covering slag liquid slag layer thickness, it is characterized in that: the height of described iron plate is 100-300mm, thickness is 4 ~ 6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421488 CN202762982U (en) | 2012-08-23 | 2012-08-23 | Device capable of measuring wave shape of molten steel liquid level and thickness of slag powder liquid slag layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220421488 CN202762982U (en) | 2012-08-23 | 2012-08-23 | Device capable of measuring wave shape of molten steel liquid level and thickness of slag powder liquid slag layer |
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| Publication Number | Publication Date |
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| CN202762982U true CN202762982U (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220421488 Expired - Fee Related CN202762982U (en) | 2012-08-23 | 2012-08-23 | Device capable of measuring wave shape of molten steel liquid level and thickness of slag powder liquid slag layer |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231030A (en) * | 2013-04-24 | 2013-08-07 | 山西太钢不锈钢股份有限公司 | Method for detecting interface state of liquid steel and covering slag in crystallizer |
| CN103837062A (en) * | 2014-02-21 | 2014-06-04 | 山西太钢不锈钢股份有限公司 | Method for detecting casting powder situation of crystallizer |
| CN105499520A (en) * | 2015-11-27 | 2016-04-20 | 山东钢铁股份有限公司 | Measurement method and measurement device for liquid level waveform of liquid in continuous casting crystallizer for molten steel |
| 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 |
| CN105798251A (en) * | 2016-03-22 | 2016-07-27 | 首钢总公司 | Method for controlling fluctuation of liquid level of continuous casting crystallizer |
| CN106984785A (en) * | 2017-03-28 | 2017-07-28 | 上海东震冶金工程技术有限公司 | It is a kind of to be imaged or taken a picture come the method for monitoring liquid fluctuating in crystallizer with 3D |
| CN112935213A (en) * | 2019-12-11 | 2021-06-11 | 中冶京诚工程技术有限公司 | Crystallizer, molten steel liquid level height measuring method in crystallizer and related device |
| CN115041643A (en) * | 2022-06-24 | 2022-09-13 | 包头钢铁（集团）有限责任公司 | Method for measuring crystallizer liquid slag layer by continuous casting machine |
-
2012
- 2012-08-23 CN CN 201220421488 patent/CN202762982U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103231030A (en) * | 2013-04-24 | 2013-08-07 | 山西太钢不锈钢股份有限公司 | Method for detecting interface state of liquid steel and covering slag in crystallizer |
| CN103837062A (en) * | 2014-02-21 | 2014-06-04 | 山西太钢不锈钢股份有限公司 | Method for detecting casting powder situation of crystallizer |
| CN105499520A (en) * | 2015-11-27 | 2016-04-20 | 山东钢铁股份有限公司 | Measurement method and measurement device for liquid level waveform of liquid in continuous casting crystallizer for molten steel |
| CN105798251A (en) * | 2016-03-22 | 2016-07-27 | 首钢总公司 | Method for controlling fluctuation of liquid level of continuous casting crystallizer |
| CN105798251B (en) * | 2016-03-22 | 2019-04-23 | 首钢集团有限公司 | A method of control continuous cast mold liquid fluctuating |
| 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 |
| CN106984785A (en) * | 2017-03-28 | 2017-07-28 | 上海东震冶金工程技术有限公司 | It is a kind of to be imaged or taken a picture come the method for monitoring liquid fluctuating in crystallizer with 3D |
| CN106984785B (en) * | 2017-03-28 | 2019-02-01 | 上海东震冶金工程技术有限公司 | A method of it is imaged or is taken a picture to monitor liquid fluctuating in crystallizer with 3D |
| CN112935213A (en) * | 2019-12-11 | 2021-06-11 | 中冶京诚工程技术有限公司 | Crystallizer, molten steel liquid level height measuring method in crystallizer and related device |
| CN115041643A (en) * | 2022-06-24 | 2022-09-13 | 包头钢铁（集团）有限责任公司 | Method for measuring crystallizer liquid slag layer by continuous casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130306 Termination date: 20140823 |
|
| EXPY | Termination of patent right or utility model |